Merge branch 'feature' into main

Feat: 支持滚轮情况下，以光标为中心进行缩放

.gitignore

@@ -1,2 +1,3 @@
 node_modules
-oss.js
+.DS_Store
+dist_electron

LICENSE

@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2021-2023 The MindMap Team
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -1 +1,151 @@
-开发中...
+<h1 align="center">Simple mind map</h1>
+
+[![npm-version](https://img.shields.io/npm/v/simple-mind-map)](https://www.npmjs.com/package/simple-mind-map)
+![npm download](https://img.shields.io/npm/dm/simple-mind-map)
+[![GitHub stars](https://img.shields.io/github/stars/wanglin2/mind-map)](https://github.com/wanglin2/mind-map/stargazers)
+[![GitHub issues](https://img.shields.io/github/issues/wanglin2/mind-map)](https://github.com/wanglin2/mind-map/issues)
+[![GitHub forks](https://img.shields.io/github/forks/wanglin2/mind-map)](https://github.com/wanglin2/mind-map/network/members)
+![license](https://img.shields.io/npm/l/express.svg)
+
+> 一个简单&强大的Web思维导图
+
+本项目包含两部分：
+
+1.一个js思维导图库，不依赖任何框架，你可以使用它来快速完成Web思维导图产品的开发。
+
+开发文档：[https://wanglin2.github.io/mind-map/#/doc/zh/](https://wanglin2.github.io/mind-map/#/doc/zh/)
+
+2.一个Web思维导图，基于思维导图库、Vue2.x、ElementUI开发，可以操作电脑本地文件，所以你可以直接把它当做一个在线版思维导图应用使用，如果觉得github的响应速度慢，你也可以部署到你的服务器上。
+
+在线地址：[https://wanglin2.github.io/mind-map/](https://wanglin2.github.io/mind-map/)
+
+另外也提供了客户端可供下载使用，支持`Windows`、`Mac`及`Linux`，下载地址：
+
+Github：[releases](https://github.com/wanglin2/mind-map/releases)。
+
+百度云盘：[地址](https://pan.baidu.com/s/1huasEbKsGNH2Af68dvWiOg?pwd=3bp3)。
+
+# 特性
+
+- [x] 插件化架构，除核心功能外，其他功能作为插件提供，按需使用，减小打包体积
+- [x] 支持逻辑结构图、思维导图、组织结构图、目录组织图、时间轴、鱼骨图六种结构
+- [x] 内置多种主题，允许高度自定义样式，支持注册新主题
+- [x] 支持快捷键
+- [x] 节点内容支持图片、图标、超链接、备注、标签、概要
+- [x] 支持前进后退
+- [x] 支持拖动、缩放
+- [x] 支持右键和Ctrl+左键两种多选方式
+- [x] 支持节点自由拖拽、拖拽调整
+- [x] 支持多种节点形状
+- [x] 支持导出为`json`、`png`、`svg`、`pdf`、`markdown`，支持从`json`、`xmind`、`markdown`导入
+- [x] 支持小地图、支持水印
+- [x] 支持关联线
+
+# 安装
+
+```bash
+npm i simple-mind-map
+```
+
+# 使用
+
+提供一个宽高不为0的容器元素：
+
+```html
+<div id="mindMapContainer"></div>
+```
+
+另外再设置一下`css`样式：
+
+```css
+#mindMapContainer * {
+  margin: 0;
+  padding: 0;
+}
+```
+
+然后创建一个实例：
+
+```js
+import MindMap from "simple-mind-map";
+
+const mindMap = new MindMap({
+  el: document.getElementById('mindMapContainer'),
+  data: {
+    "data": {
+        "text": "根节点"
+    },
+    "children": []
+  }
+});
+```
+
+即可得到一个思维导图。
+
+想要实现更多功能？可以查看[开发文档](https://wanglin2.github.io/mind-map/#/doc/zh/)。
+
+# License
+
+[MIT](./LICENSE)
+
+# 微信交流群
+
+<img src="./qrcode.jpg" style="width: 300px" />
+
+如果已过期，可以微信添加`wanglinguanfang`拉你入群。
+
+# 请作者喝杯咖啡
+
+开源不易，如果本项目有帮助到你的话，可以考虑请作者喝杯咖啡哟~
+
+> 厚椰乳一盒 + 纯牛奶半盒 + 冰块 + 咖啡液 = 生椰拿铁 yyds
+
+> 转账请备注【思维导图】。你的头像和名字将会出现在下面和[文档页面](https://wanglin2.github.io/mind-map/#/doc/zh/introduction/%E8%AF%B7%E4%BD%9C%E8%80%85%E5%96%9D%E6%9D%AF%E5%92%96%E5%95%A1)
+
+<p>
+  <img src="./web/src/assets/img/alipay.jpg" style="width: 300px" />
+  <img src="./web/src/assets/img/wechat.jpg" style="width: 300px" />
+</p>
+
+<p>
+    <span>
+        <img src="./web/src/assets/avatar/Think.jpg" style="width: 50px;height: 50px;" />
+        <span>Think</span>
+    </span>
+    <span>
+        <img src="./web/src/assets/avatar/志斌.jpg" style="width: 50px;height: 50px;" />
+        <span>志斌</span>
+    </span>
+    <span>
+        <img src="./web/src/assets/avatar/小土渣的宇宙.jpeg" style="width: 50px;height: 50px;" />
+        <span>小土渣的宇宙</span>
+    </span>
+    <span>
+        <img src="./web/src/assets/avatar/qp.jpg" style="width: 50px;height: 50px;" />
+        <span>qp</span>
+    </span>
+    <span>
+        <img src="./web/src/assets/avatar/ZXR.jpg" style="width: 50px;height: 50px;" />
+        <span>ZXR</span>
+    </span>
+    <span>
+        <img src="./web/src/assets/avatar/花儿朵朵.jpg" style="width: 50px;height: 50px;" />
+        <span>花儿朵朵</span>
+    </span>
+    <span>
+        <img src="./web/src/assets/avatar/suka.jpg" style="width: 50px;height: 50px;" />
+        <span>suka</span>
+    </span>
+    <span>
+        <img src="./web/src/assets/avatar/Chris.jpg" style="width: 50px;height: 50px;" />
+        <span>Chris</span>
+    </span>
+    <span>
+        <img src="./web/src/assets/avatar/水车.jpg" style="width: 50px;height: 50px;" />
+        <span>水车</span>
+    </span>
+    <span>
+        <img src="./web/src/assets/avatar/仓鼠.jpg" style="width: 50px;height: 50px;" />
+        <span>仓鼠</span>
+    </span>
+</p>

copy.js

@@ -0,0 +1,15 @@
+const fs = require('fs')
+const path = require('path')
+
+const src = path.resolve(__dirname, './dist/index.html') 
+const dest = path.resolve(__dirname, './index.html') 
+
+if (fs.existsSync(dest)) {
+    fs.unlinkSync(dest)
+}
+
+if (fs.existsSync(src)) {
+    fs.copyFileSync(src, dest)
+    fs.unlinkSync(src)
+}
+

simple-mind-map/.eslintrc.js

@@ -0,0 +1,17 @@
+module.exports = {
+    "env": {
+        "browser": true,
+        "es2021": true
+    },
+    "extends": "eslint:recommended",
+    "overrides": [
+    ],
+    "parserOptions": {
+        "parser": 'babel-eslint',
+        "ecmaVersion": 12,
+        "sourceType": "module",
+        "allowImportExportEverywhere": true
+    },
+    "rules": {
+    }
+}

simple-mind-map/.prettierignore

@@ -0,0 +1,10 @@
+src/assets
+*/.DS_Store
+dist
+example
+node_modules
+*.json
+*.md
+.eslintrc.js
+.prettierignore
+.prettierrc

simple-mind-map/.prettierrc

@@ -0,0 +1,5 @@
+semi: false
+singleQuote: true
+printWidth: 80
+trailingComma: 'none'
+arrowParens: 'avoid'

simple-mind-map/README.md

@@ -0,0 +1,3 @@
+# 一个web思维导图的简单实现
+
+详细文档见：[https://github.com/wanglin2/mind-map](https://github.com/wanglin2/mind-map)

simple-mind-map/example/exampleData.js

@@ -0,0 +1,941 @@
+const createFullData = () => {
+    return {
+        "image": "/enJFNMHnedQTYTESGfDkctCp2.jpeg",
+        "imageTitle": "图片名称",
+        "imageSize": {
+            "width": 1000,
+            "height": 563
+        },
+        "icon": ['priority_1'],
+        "tag": ["标签1", "标签2"],
+        "hyperlink": "http://lxqnsys.com/",
+        "hyperlinkTitle": "理想青年实验室",
+        "note": "理想青年实验室\n一个有意思的角落",
+        // 自定义位置
+        // "customLeft": 1318,
+        // "customTop": 374.5
+    };
+}
+
+/** 
+ * @Author: 王林 
+ * @Date: 2021-04-15 22:23:24 
+ * @Desc: 节点较多示例数据 
+ */
+const data1 = {
+    "root": {
+        "data": {
+            "text": "根节点"
+        },
+        "children": [
+            {
+                "data": {
+                    "text": "二级节点1",
+                    "expand": true,
+                },
+                "children": [{
+                    "data": {
+                        "text": "分支主题",
+                        ...createFullData()
+                    },
+                    "children": [{
+                        "data": {
+                            "text": "分支主题",
+                        },
+                    }, {
+                        "data": {
+                            "text": "分支主题",
+                        },
+                        "children": [{
+                            "data": {
+                                "text": "分支主题",
+                                ...createFullData()
+                            },
+                        }, {
+                            "data": {
+                                "text": "分支主题",
+                            },
+                        }, {
+                            "data": {
+                                "text": "分支主题",
+                            },
+                            "children": [{
+                                "data": {
+                                    "text": "分支主题",
+                                },
+                            }, {
+                                "data": {
+                                    "text": "分支主题",
+                                },
+                                "children": [{
+                                    "data": {
+                                        "text": "分支主题",
+                                    },
+                                }, {
+                                    "data": {
+                                        "text": "分支主题",
+                                    },
+                                    "children": [{
+                                        "data": {
+                                            "text": "分支主题",
+                                        },
+                                    }, {
+                                        "data": {
+                                            "text": "分支主题",
+                                        },
+                                        "children": [{
+                                            "data": {
+                                                "text": "分支主题",
+                                            },
+                                        }, {
+                                            "data": {
+                                                "text": "分支主题",
+                                            },
+                                        }, {
+                                            "data": {
+                                                "text": "分支主题",
+                                            },
+                                        }, {
+                                            "data": {
+                                                "text": "分支主题",
+                                            },
+                                        }]
+                                    }, {
+                                        "data": {
+                                            "text": "分支主题",
+                                        },
+                                    }, {
+                                        "data": {
+                                            "text": "分支主题",
+                                        },
+                                    }]
+                                }, {
+                                    "data": {
+                                        "text": "分支主题",
+                                    },
+                                }, {
+                                    "data": {
+                                        "text": "分支主题",
+                                    },
+                                }]
+                            }, {
+                                "data": {
+                                    "text": "分支主题",
+                                },
+                            }, {
+                                "data": {
+                                    "text": "分支主题",
+                                },
+                            }]
+                        }, {
+                            "data": {
+                                "text": "分支主题",
+                            },
+                        }]
+                    }, {
+                        "data": {
+                            "text": "分支主题",
+                        },
+                    }, {
+                        "data": {
+                            "text": "分支主题",
+                        },
+                    }]
+                }]
+            },
+            {
+                "data": {
+                    "text": "二级节点2",
+                    "expand": true,
+                },
+                "children": [{
+                    "data": {
+                        "text": "分支主题",
+                    },
+                }, {
+                    "data": {
+                        "text": "分支主题",
+                    },
+                    "children": [{
+                        "data": {
+                            "text": "分支主题",
+                        },
+                    }, {
+                        "data": {
+                            "text": "分支主题",
+                        },
+                    }, {
+                        "data": {
+                            "text": "分支主题",
+                        },
+                    }, {
+                        "data": {
+                            "text": "分支主题",
+                        },
+                    }]
+                }, {
+                    "data": {
+                        "text": "分支主题",
+                    },
+                }, {
+                    "data": {
+                        "text": "分支主题",
+                    },
+                }]
+            },
+            {
+                "data": {
+                    "text": "二级节点3",
+                    "expand": true,
+                },
+                "children": [{
+                    "data": {
+                        "text": "分支主题",
+                    },
+                    "children": [{
+                        "data": {
+                            "text": "分支主题",
+                        },
+                    }, {
+                        "data": {
+                            "text": "分支主题",
+                        },
+                        "children": [{
+                            "data": {
+                                "text": "分支主题",
+                            },
+                        }, {
+                            "data": {
+                                "text": "分支主题",
+                            },
+                        }, {
+                            "data": {
+                                "text": "分支主题",
+                            },
+                        }, {
+                            "data": {
+                                "text": "分支主题",
+                            },
+                        }]
+                    }, {
+                        "data": {
+                            "text": "分支主题",
+                        },
+                    }, {
+                        "data": {
+                            "text": "分支主题",
+                        },
+                    }]
+                }]
+            },
+            {
+                "data": {
+                    "text": "二级节点4",
+                    "expand": true,
+                },
+                "children": [{
+                    "data": {
+                        "text": "分支主题",
+                    },
+                    "children": [{
+                        "data": {
+                            "text": "分支主题",
+                        },
+                        "children": [{
+                            "data": {
+                                "text": "分支主题",
+                            },
+                            "children": [{
+                                "data": {
+                                    "text": "分支主题",
+                                },
+                            }, {
+                                "data": {
+                                    "text": "分支主题",
+                                },
+                            }, {
+                                "data": {
+                                    "text": "分支主题",
+                                },
+                            }, {
+                                "data": {
+                                    "text": "分支主题",
+                                },
+                            }]
+                        }, {
+                            "data": {
+                                "text": "分支主题",
+                            },
+                        }, {
+                            "data": {
+                                "text": "分支主题",
+                            },
+                        }, {
+                            "data": {
+                                "text": "分支主题",
+                            },
+                        }]
+                    }, {
+                        "data": {
+                            "text": "分支主题",
+                        },
+                    }, {
+                        "data": {
+                            "text": "分支主题",
+                        },
+                        "children": [{
+                            "data": {
+                                "text": "分支主题",
+                            },
+                        }, {
+                            "data": {
+                                "text": "分支主题",
+                            },
+                        }, {
+                            "data": {
+                                "text": "分支主题",
+                            },
+                        }, {
+                            "data": {
+                                "text": "分支主题",
+                            },
+                            "children": [{
+                                "data": {
+                                    "text": "分支主题",
+                                },
+                                "children": [{
+                                    "data": {
+                                        "text": "分支主题",
+                                    },
+                                }, {
+                                    "data": {
+                                        "text": "分支主题",
+                                    },
+                                }, {
+                                    "data": {
+                                        "text": "分支主题",
+                                    },
+                                }, {
+                                    "data": {
+                                        "text": "分支主题",
+                                    },
+                                }]
+                            }, {
+                                "data": {
+                                    "text": "分支主题",
+                                },
+                                "children": [{
+                                    "data": {
+                                        "text": "分支主题",
+                                    },
+                                }, {
+                                    "data": {
+                                        "text": "分支主题",
+                                    },
+                                    "children": [{
+                                        "data": {
+                                            "text": "分支主题",
+                                        },
+                                    }, {
+                                        "data": {
+                                            "text": "分支主题",
+                                        },
+                                    }, {
+                                        "data": {
+                                            "text": "分支主题",
+                                        },
+                                    }, {
+                                        "data": {
+                                            "text": "分支主题",
+                                        },
+                                    }]
+                                }, {
+                                    "data": {
+                                        "text": "分支主题",
+                                    },
+                                }, {
+                                    "data": {
+                                        "text": "分支主题",
+                                    },
+                                }]
+                            }, {
+                                "data": {
+                                    "text": "分支主题",
+                                },
+                            }, {
+                                "data": {
+                                    "text": "分支主题",
+                                },
+                            }]
+                        }]
+                    }, {
+                        "data": {
+                            "text": "分支主题",
+                        },
+                        "children": [{
+                            "data": {
+                                "text": "分支主题",
+                            },
+                        }, {
+                            "data": {
+                                "text": "分支主题",
+                            },
+                            "children": [{
+                                "data": {
+                                    "text": "分支主题",
+                                },
+                            }, {
+                                "data": {
+                                    "text": "分支主题",
+                                },
+                                "children": [{
+                                    "data": {
+                                        "text": "分支主题",
+                                    },
+                                }, {
+                                    "data": {
+                                        "text": "分支主题",
+                                    },
+                                }, {
+                                    "data": {
+                                        "text": "分支主题",
+                                    },
+                                }, {
+                                    "data": {
+                                        "text": "分支主题",
+                                    },
+                                }]
+                            }, {
+                                "data": {
+                                    "text": "分支主题",
+                                },
+                            }, {
+                                "data": {
+                                    "text": "分支主题",
+                                },
+                            }]
+                        }, {
+                            "data": {
+                                "text": "分支主题",
+                            },
+                            "children": [{
+                                "data": {
+                                    "text": "分支主题",
+                                },
+                            }, {
+                                "data": {
+                                    "text": "分支主题",
+                                },
+                            }, {
+                                "data": {
+                                    "text": "分支主题",
+                                },
+                            }, {
+                                "data": {
+                                    "text": "分支主题",
+                                },
+                            }]
+                        }, {
+                            "data": {
+                                "text": "分支主题",
+                            },
+                            "children": [{
+                                "data": {
+                                    "text": "分支主题",
+                                },
+                            }, {
+                                "data": {
+                                    "text": "分支主题",
+                                },
+                            }, {
+                                "data": {
+                                    "text": "分支主题",
+                                },
+                            }, {
+                                "data": {
+                                    "text": "分支主题",
+                                },
+                            }]
+                        }]
+                    }]
+                }]
+            },
+        ]
+    }
+}
+
+/** 
+ * javascript comment 
+ * @Author: 王林25 
+ * @Date: 2021-07-12 13:49:43 
+ * @Desc: 真实场景数据 
+ */
+const data2 = {
+    "root": {
+        "data": {
+            "text": "一周安排"
+        },
+        "children": [
+            {
+                "data": {
+                    "text": "生活"
+                },
+                "children": [
+                    {
+                        "data": {
+                            "text": "锻炼"
+                        },
+                        "children": [
+                            {
+                                "data": {
+                                    "text": "晨跑"
+                                },
+                                "children": [
+                                    {
+                                        "data": {
+                                            "text": "7:00-8:00"
+                                        },
+                                        "children": []
+                                    }
+                                ]
+                            },
+                            {
+                                "data": {
+                                    "text": "夜跑"
+                                },
+                                "children": [
+                                    {
+                                        "data": {
+                                            "text": "20:00-21:00"
+                                        },
+                                        "children": []
+                                    }
+                                ]
+                            }
+                        ]
+                    },
+                    {
+                        "data": {
+                            "text": "饮食"
+                        },
+                        "children": [
+                            {
+                                "data": {
+                                    "text": "早餐"
+                                },
+                                "children": [
+                                    {
+                                        "data": {
+                                            "text": "8:30"
+                                        },
+                                        "children": []
+                                    }
+                                ]
+                            },
+                            {
+                                "data": {
+                                    "text": "午餐"
+                                },
+                                "children": [
+                                    {
+                                        "data": {
+                                            "text": "11:30"
+                                        },
+                                        "children": []
+                                    }
+                                ]
+                            },
+                            {
+                                "data": {
+                                    "text": "晚餐"
+                                },
+                                "children": [
+                                    {
+                                        "data": {
+                                            "text": "19:00"
+                                        },
+                                        "children": []
+                                    }
+                                ]
+                            }
+                        ]
+                    },
+                    {
+                        "data": {
+                            "text": "休息"
+                        },
+                        "children": [
+                            {
+                                "data": {
+                                    "text": "午休"
+                                },
+                                "children": [
+                                    {
+                                        "data": {
+                                            "text": "12:30-13:00"
+                                        },
+                                        "children": []
+                                    }
+                                ]
+                            },
+                            {
+                                "data": {
+                                    "text": "晚休"
+                                },
+                                "children": [
+                                    {
+                                        "data": {
+                                            "text": "23:00-6:30"
+                                        },
+                                        "children": []
+                                    }
+                                ]
+                            }
+                        ]
+                    }
+                ]
+            },
+            {
+                "data": {
+                    "text": "工作日\n周一至周五"
+                },
+                "children": [
+                    {
+                        "data": {
+                            "text": "日常工作"
+                        },
+                        "children": [
+                            {
+                                "data": {
+                                    "text": "9:00-18:00"
+                                },
+                                "children": []
+                            }
+                        ]
+                    },
+                    {
+                        "data": {
+                            "text": "工作总结"
+                        },
+                        "children": [
+                            {
+                                "data": {
+                                    "text": "21:00-22:00"
+                                },
+                                "children": []
+                            }
+                        ]
+                    }
+                ]
+            },
+            {
+                "data": {
+                    "text": "学习"
+                },
+                "children": [
+                    {
+                        "data": {
+                            "text": "工作日"
+                        },
+                        "children": [
+                            {
+                                "data": {
+                                    "text": "早间新闻"
+                                },
+                                "children": [
+                                    {
+                                        "data": {
+                                            "text": "8:00-8:30"
+                                        },
+                                        "children": []
+                                    }
+                                ]
+                            },
+                            {
+                                "data": {
+                                    "text": "阅读"
+                                },
+                                "children": [
+                                    {
+                                        "data": {
+                                            "text": "21:00-23:00"
+                                        },
+                                        "children": []
+                                    }
+                                ]
+                            }
+                        ]
+                    },
+                    {
+                        "data": {
+                            "text": "休息日"
+                        },
+                        "children": [
+                            {
+                                "data": {
+                                    "text": "财务管理"
+                                },
+                                "children": [
+                                    {
+                                        "data": {
+                                            "text": "9:00-10:30"
+                                        },
+                                        "children": []
+                                    }
+                                ]
+                            },
+                            {
+                                "data": {
+                                    "text": "职场技能"
+                                },
+                                "children": [
+                                    {
+                                        "data": {
+                                            "text": "14:00-15:30"
+                                        },
+                                        "children": []
+                                    }
+                                ]
+                            },
+                            {
+                                "data": {
+                                    "text": "其他书籍"
+                                },
+                                "children": [
+                                    {
+                                        "data": {
+                                            "text": "16:00-18:00"
+                                        },
+                                        "children": []
+                                    }
+                                ]
+                            }
+                        ]
+                    }
+                ]
+            },
+            {
+                "data": {
+                    "text": "休闲娱乐"
+                },
+                "children": [
+                    {
+                        "data": {
+                            "text": "看电影"
+                        },
+                        "children": [
+                            {
+                                "data": {
+                                    "text": "1~2部"
+                                },
+                                "children": []
+                            }
+                        ]
+                    },
+                    {
+                        "data": {
+                            "text": "逛街"
+                        },
+                        "children": [
+                            {
+                                "data": {
+                                    "text": "1~2次"
+                                },
+                                "children": []
+                            }
+                        ]
+                    }
+                ]
+            }
+        ]
+    }
+}
+
+/** 
+ * javascript comment 
+ * @Author: 王林25 
+ * @Date: 2021-07-12 14:29:10 
+ * @Desc: 极简数据 
+ */
+const data3 = {
+    "root": {
+        "data": {
+            "text": "根节点"
+        },
+        "children": [
+            {
+                "data": {
+                    "text": "二级节点"
+                },
+                "children": [
+                    {
+                        "data": {
+                            "text": "分支主题"
+                        },
+                        "children": []
+                    },
+                    {
+                        "data": {
+                            "text": "分支主题"
+                        },
+                        "children": []
+                    }
+                ]
+            }
+        ]
+    }
+}
+
+const data4 = {
+    "root": {
+        "data": {
+            "text": "根节点"
+        },
+        "children": [
+            {
+                "data": {
+                    "text": "二级节点1"
+                },
+                "children": [
+                    {
+                        "data": {
+                            "text": "子节点1-1"
+                        },
+                        "children": []
+                    },
+                    {
+                        "data": {
+                            "text": "子节点1-2"
+                        },
+                        "children": [
+                            {
+                                "data": {
+                                    "text": "子节点1-2-1"
+                                },
+                                "children": []
+                            },
+                            {
+                                "data": {
+                                    "text": "子节点1-2-2"
+                                },
+                                "children": []
+                            },
+                            {
+                                "data": {
+                                    "text": "子节点1-2-3"
+                                },
+                                "children": []
+                            }
+                        ]
+                    }
+                ]
+            },
+            {
+                "data": {
+                    "text": "二级节点2"
+                },
+                "children": [
+                    {
+                        "data": {
+                            "text": "子节点2-1"
+                        },
+                        "children": [
+                            {
+                                "data": {
+                                    "text": "子节点2-1-1"
+                                },
+                                "children": [
+                                    {
+                                        "data": {
+                                            "text": "子节点2-1-1-1"
+                                        },
+                                        "children": []
+                                    },
+                                ]
+                            }
+                        ]
+                    },
+                    {
+                        "data": {
+                            "text": "子节点2-2"
+                        },
+                        "children": []
+                    }
+                ]
+            }
+        ]
+    }
+}
+
+// 带概要
+const data5 = {
+    "root": {
+        "data": {
+            "text": "根节点"
+        },
+        "children": [
+            {
+                "data": {
+                    "text": "二级节点",
+                    "generalization": {
+                        "text": "概要",
+                    }
+                },
+                "children": [
+                    {
+                        "data": {
+                            "text": "分支主题"
+                        },
+                        "children": []
+                    },
+                    {
+                        "data": {
+                            "text": "分支主题"
+                        },
+                        "children": []
+                    }
+                ]
+            },
+        ]
+    }
+}
+
+// 富文本数据v0.4.0+，需要使用RichText插件才支持富文本编辑
+const richTextData = {
+    "root": {
+        "data": {
+            "text": "<a href='http://lxqnsys.com/' target='_blank'>理想去年实验室</a>",
+            "richText": true
+        },
+        "children": []
+    }
+}
+
+const rootData = {
+    "root": {
+        "data": {
+            "text": "根节点"
+        },
+        "children": []
+    }
+}
+
+export default {
+    // ...data1,
+    // ...data2,
+    // ...data3,
+    // ...data4,
+    ...data5,
+    // ...rootData,
+    "theme": {
+        "template": "classic4",
+        "config": {
+            // 自定义配置...
+        }
+    },
+    "layout": "logicalStructure",
+    // "layout": "mindMap",
+    // "layout": "catalogOrganization"
+    // "layout": "organizationStructure",
+    "config": {}
+}

simple-mind-map/example/exportFullData.json

@@ -0,0 +1,73 @@
+{
+    "layout": "logicalStructure",
+    "root": {
+        "data": {
+            "text": "根节点",
+            "expand": true,
+            "isActive": false
+        },
+        "children": [{
+            "data": {
+                "text": "二级节点",
+                "generalization": {
+                    "text": "概要",
+                    "expand": true,
+                    "isActive": false
+                },
+                "expand": true,
+                "isActive": false
+            },
+            "children": [{
+                "data": {
+                    "text": "分支主题",
+                    "expand": true,
+                    "isActive": false
+                },
+                "children": []
+            }, {
+                "data": {
+                    "text": "分支主题",
+                    "expand": true,
+                    "isActive": false
+                },
+                "children": []
+            }, {
+                "data": {
+                    "text": "<a href='http://lxqnsys.com/' target='_blank'>理想去年实验室</a>",
+                    "richText": true
+                },
+                "children": []
+            }]
+        }]
+    },
+    "theme": {
+        "template": "classic4",
+        "config": {}
+    },
+    "view": {
+        "transform": {
+            "scaleX": 1,
+            "scaleY": 1,
+            "shear": 0,
+            "rotate": 0,
+            "translateX": 0,
+            "translateY": 0,
+            "originX": 0,
+            "originY": 0,
+            "a": 1,
+            "b": 0,
+            "c": 0,
+            "d": 1,
+            "e": 0,
+            "f": 0
+        },
+        "state": {
+            "scale": 1,
+            "x": 0,
+            "y": 0,
+            "sx": 0,
+            "sy": 0
+        }
+    },
+    "config": {}
+}

simple-mind-map/full.js

@@ -0,0 +1,42 @@
+import MindMap from './index'
+import MiniMap from './src/plugins/MiniMap.js'
+import Watermark from './src/plugins/Watermark.js'
+import KeyboardNavigation from './src/plugins/KeyboardNavigation.js'
+import ExportPDF from './src/plugins/ExportPDF.js'
+import Export from './src/plugins/Export.js'
+import Drag from './src/plugins/Drag.js'
+import Select from './src/plugins/Select.js'
+import AssociativeLine from './src/plugins/AssociativeLine'
+import RichText from './src/plugins/RichText'
+import NodeImgAdjust from './src/plugins/NodeImgAdjust.js'
+import TouchEvent from './src/plugins/TouchEvent.js'
+import Search from './src/plugins/Search.js'
+import xmind from './src/parse/xmind.js'
+import markdown from './src/parse/markdown.js'
+import icons from './src/svg/icons.js'
+import * as constants from './src/constants/constant.js'
+import themes from './src/themes/index.js'
+import * as defaultTheme from './src/themes/default.js'
+
+MindMap.xmind = xmind
+MindMap.markdown = markdown
+MindMap.iconList = icons.nodeIconList
+MindMap.constants = constants
+MindMap.themes = themes
+MindMap.defaultTheme = defaultTheme
+
+MindMap
+  .usePlugin(MiniMap)
+  .usePlugin(Watermark)
+  .usePlugin(Drag)
+  .usePlugin(KeyboardNavigation)
+  .usePlugin(ExportPDF)
+  .usePlugin(Export)
+  .usePlugin(Select)
+  .usePlugin(AssociativeLine)
+  .usePlugin(RichText)
+  .usePlugin(TouchEvent)
+  .usePlugin(NodeImgAdjust)
+  .usePlugin(Search)
+
+export default MindMap

simple-mind-map/index.js

@@ -0,0 +1,422 @@
+import View from './src/core/view/View'
+import Event from './src/core/event/Event'
+import Render from './src/core/render/Render'
+import merge from 'deepmerge'
+import theme from './src/themes'
+import Style from './src/core/render/node/Style'
+import KeyCommand from './src/core/command/KeyCommand'
+import Command from './src/core/command/Command'
+import BatchExecution from './src/utils/BatchExecution'
+import { layoutValueList, CONSTANTS, commonCaches } from './src/constants/constant'
+import { SVG } from '@svgdotjs/svg.js'
+import { simpleDeepClone, getType } from './src/utils'
+import defaultTheme, { checkIsNodeSizeIndependenceConfig } from './src/themes/default'
+import { defaultOpt } from './src/constants/defaultOptions'
+
+//  思维导图
+class MindMap {
+  //  构造函数
+  constructor(opt = {}) {
+    // 合并选项
+    this.opt = this.handleOpt(merge(defaultOpt, opt))
+
+    // 容器元素
+    this.el = this.opt.el
+    this.elRect = this.el.getBoundingClientRect()
+
+    // 画布宽高
+    this.width = this.elRect.width
+    this.height = this.elRect.height
+
+    // 画布
+    this.svg = SVG().addTo(this.el).size(this.width, this.height)
+    this.draw = this.svg.group()
+
+    // 初始化主题
+    this.initTheme()
+
+    // 初始化缓存数据
+    this.initCache()
+
+    // 事件类
+    this.event = new Event({
+      mindMap: this
+    })
+
+    // 按键类
+    this.keyCommand = new KeyCommand({
+      mindMap: this
+    })
+
+    // 命令类
+    this.command = new Command({
+      mindMap: this
+    })
+
+    // 渲染类
+    this.renderer = new Render({
+      mindMap: this
+    })
+
+    // 视图操作类
+    this.view = new View({
+      mindMap: this,
+      draw: this.draw
+    })
+
+    // 批量执行类
+    this.batchExecution = new BatchExecution()
+
+    // 注册插件
+    MindMap.pluginList.forEach((plugin) => {
+      this.initPlugin(plugin)
+    })
+
+    // 初始渲染
+    this.render()
+    setTimeout(() => {
+      this.command.addHistory()
+    }, 0)
+  }
+
+  //  配置参数处理
+  handleOpt(opt) {
+    // 检查布局配置
+    if (!layoutValueList.includes(opt.layout)) {
+      opt.layout = CONSTANTS.LAYOUT.LOGICAL_STRUCTURE
+    }
+    // 检查主题配置
+    opt.theme = opt.theme && theme[opt.theme] ? opt.theme : 'default'
+    return opt
+  }
+
+  //  渲染，部分渲染
+  render(callback, source = '') {
+    this.batchExecution.push('render', () => {
+      this.initTheme()
+      this.renderer.reRender = false
+      this.renderer.render(callback, source)
+    })
+  }
+
+  //  重新渲染
+  reRender(callback, source = '') {
+    this.batchExecution.push('render', () => {
+      this.draw.clear()
+      this.initTheme()
+      this.renderer.reRender = true
+      this.renderer.render(callback, source)
+    })
+  }
+
+  //  容器尺寸变化，调整尺寸
+  resize() {
+    this.elRect = this.el.getBoundingClientRect()
+    this.width = this.elRect.width
+    this.height = this.elRect.height
+    this.svg.size(this.width, this.height)
+  }
+
+  //  监听事件
+  on(event, fn) {
+    this.event.on(event, fn)
+  }
+
+  //  触发事件
+  emit(event, ...args) {
+    this.event.emit(event, ...args)
+  }
+
+  //  解绑事件
+  off(event, fn) {
+    this.event.off(event, fn)
+  }
+
+  // 初始化缓存数据
+  initCache() {
+    Object.keys(commonCaches).forEach((key) => {
+      let type = getType(commonCaches[key])
+      let value = ''
+      switch(type) {
+        case 'Boolean':
+          value = false
+          break
+        default:
+          value = null
+          break
+      }
+      commonCaches[key] = value
+    })
+  }
+
+  //  设置主题
+  initTheme() {
+    // 合并主题配置
+    this.themeConfig = merge(theme[this.opt.theme], this.opt.themeConfig)
+    // 设置背景样式
+    Style.setBackgroundStyle(this.el, this.themeConfig)
+  }
+
+  //  设置主题
+  setTheme(theme) {
+    this.renderer.clearAllActive()
+    this.opt.theme = theme
+    this.render(null, CONSTANTS.CHANGE_THEME)
+  }
+
+  //  获取当前主题
+  getTheme() {
+    return this.opt.theme
+  }
+
+  //  设置主题配置
+  setThemeConfig(config) {
+    this.opt.themeConfig = config
+    // 检查改变的是否是节点大小无关的主题属性
+    let res = checkIsNodeSizeIndependenceConfig(config)
+    this.render(null, res ? '' : CONSTANTS.CHANGE_THEME)
+  }
+
+  //  获取自定义主题配置
+  getCustomThemeConfig() {
+    return this.opt.themeConfig
+  }
+
+  //  获取某个主题配置值
+  getThemeConfig(prop) {
+    return prop === undefined ? this.themeConfig : this.themeConfig[prop]
+  }
+
+  // 获取配置
+  getConfig(prop) {
+    return prop === undefined ? this.opt : this.opt[prop]
+  }
+
+  // 更新配置
+  updateConfig(opt = {}) {
+    this.opt = this.handleOpt(merge.all([defaultOpt, this.opt, opt]))
+  }
+
+  //  获取当前布局结构
+  getLayout() {
+    return this.opt.layout
+  }
+
+  //  设置布局结构
+  setLayout(layout) {
+    // 检查布局配置
+    if (!layoutValueList.includes(layout)) {
+      layout = CONSTANTS.LAYOUT.LOGICAL_STRUCTURE
+    }
+    this.opt.layout = layout
+    this.view.reset()
+    this.renderer.setLayout()
+    this.render(null, CONSTANTS.CHANGE_LAYOUT)
+  }
+
+  //  执行命令
+  execCommand(...args) {
+    this.command.exec(...args)
+  }
+
+  //  动态设置思维导图数据，纯节点数据
+  setData(data) {
+    this.execCommand('CLEAR_ACTIVE_NODE')
+    this.command.clearHistory()
+    this.command.addHistory()
+    if (this.richText) {
+      this.renderer.renderTree = this.richText.handleSetData(data)
+    } else {
+      this.renderer.renderTree = data
+    }
+    this.reRender(() => {}, CONSTANTS.SET_DATA)
+  }
+
+  //  动态设置思维导图数据，包括节点数据、布局、主题、视图
+  setFullData(data) {
+    if (data.root) {
+      this.setData(data.root)
+    }
+    if (data.layout) {
+      this.setLayout(data.layout)
+    }
+    if (data.theme) {
+      if (data.theme.template) {
+        this.setTheme(data.theme.template)
+      }
+      if (data.theme.config) {
+        this.setThemeConfig(data.theme.config)
+      }
+    }
+    if (data.view) {
+      this.view.setTransformData(data.view)
+    }
+  }
+
+  //  获取思维导图数据，节点树、主题、布局等
+  getData(withConfig) {
+    let nodeData = this.command.getCopyData()
+    let data = {}
+    if (withConfig) {
+      data = {
+        layout: this.getLayout(),
+        root: nodeData,
+        theme: {
+          template: this.getTheme(),
+          config: this.getCustomThemeConfig()
+        },
+        view: this.view.getTransformData()
+      }
+    } else {
+      data = nodeData
+    }
+    return simpleDeepClone(data)
+  }
+
+  //  导出
+  async export(...args) {
+    let result = await this.doExport.export(...args)
+    return result
+  }
+
+  //  转换位置
+  toPos(x, y) {
+    return {
+      x: x - this.elRect.left,
+      y: y - this.elRect.top
+    }
+  }
+
+  //  设置只读模式、编辑模式
+  setMode(mode) {
+    if (![CONSTANTS.MODE.READONLY, CONSTANTS.MODE.EDIT].includes(mode)) {
+      return
+    }
+    this.opt.readonly = mode === CONSTANTS.MODE.READONLY
+    if (this.opt.readonly) {
+      // 取消当前激活的元素
+      this.renderer.clearAllActive()
+    }
+    this.emit('mode_change', mode)
+  }
+
+  // 获取svg数据
+  getSvgData({ paddingX = 0, paddingY = 0 } = {}) {
+    const svg = this.svg
+    const draw = this.draw
+    // 保存原始信息
+    const origWidth = svg.width()
+    const origHeight = svg.height()
+    const origTransform = draw.transform()
+    const elRect = this.el.getBoundingClientRect()
+    // 去除放大缩小的变换效果
+    draw.scale(1 / origTransform.scaleX, 1 / origTransform.scaleY)
+    // 获取变换后的位置尺寸信息，其实是getBoundingClientRect方法的包装方法
+    const rect = draw.rbox()
+    // 内边距
+    rect.width += paddingX
+    rect.height += paddingY
+    draw.translate(paddingX / 2, paddingY / 2)
+    // 将svg设置为实际内容的宽高
+    svg.size(rect.width, rect.height)
+    // 把实际内容变换
+    draw.translate(-rect.x + elRect.left, -rect.y + elRect.top)
+    // 克隆一份数据
+    let clone = svg.clone()
+    // 如果实际图形宽高超出了屏幕宽高，且存在水印的话需要重新绘制水印，否则会出现超出部分没有水印的问题
+    if ((rect.width > origWidth || rect.height >  origHeight) && this.watermark && this.watermark.hasWatermark()) {
+      this.width = rect.width
+      this.height = rect.height
+      this.watermark.draw()
+      clone = svg.clone()
+      this.width = origWidth
+      this.height = origHeight
+      this.watermark.draw()
+    }
+    // 恢复原先的大小和变换信息
+    svg.size(origWidth, origHeight)
+    draw.transform(origTransform)
+
+    return {
+      svg: clone, // 思维导图图形的整体svg元素，包括：svg（画布容器）、g（实际的思维导图组）
+      svgHTML: clone.svg(), // svg字符串
+      rect: {
+        ...rect, // 思维导图图形未缩放时的位置尺寸等信息
+        ratio: rect.width / rect.height // 思维导图图形的宽高比
+      },
+      origWidth, // 画布宽度
+      origHeight, // 画布高度
+      scaleX: origTransform.scaleX, // 思维导图图形的水平缩放值
+      scaleY: origTransform.scaleY // 思维导图图形的垂直缩放值
+    }
+  }
+
+  // 添加插件
+  addPlugin(plugin, opt) {
+    let index = MindMap.hasPlugin(plugin)
+    if (index === -1) {
+      MindMap.usePlugin(plugin, opt)
+      this.initPlugin(plugin)
+    }
+  }
+
+  // 移除插件
+  removePlugin(plugin) {
+    let index = MindMap.hasPlugin(plugin)
+    if (index !== -1) {
+      MindMap.pluginList.splice(index, 1)
+      if (this[plugin.instanceName]) {
+        if (this[plugin.instanceName].beforePluginRemove) {
+          this[plugin.instanceName].beforePluginRemove()
+        }
+        delete this[plugin.instanceName]
+      }
+    }
+  }
+
+  // 实例化插件
+  initPlugin(plugin) {
+    this[plugin.instanceName] = new plugin({
+      mindMap: this,
+      pluginOpt: plugin.pluginOpt
+    })
+  }
+
+  // 销毁
+  destroy() {
+    // 移除插件
+    [...MindMap.pluginList].forEach((plugin) => {
+      this[plugin.instanceName] = null
+    })
+    // 解绑事件
+    this.event.unbind()
+    // 移除画布节点
+    this.svg.remove()
+    // 去除给容器元素设置的背景样式
+    Style.removeBackgroundStyle(this.el)
+    this.el = null
+  }
+}
+
+// 插件列表
+MindMap.pluginList = []
+MindMap.usePlugin = (plugin, opt = {}) => {
+  plugin.pluginOpt = opt
+  MindMap.pluginList.push(plugin)
+  return MindMap
+}
+MindMap.hasPlugin = (plugin) => {
+  return MindMap.pluginList.findIndex((item) => {
+    return item === plugin
+  })
+}
+
+// 定义新主题
+MindMap.defineTheme = (name, config = {}) => {
+  if (theme[name]) {
+    return new Error('该主题名称已存在')
+  }
+  theme[name] = merge(defaultTheme, config)
+}
+
+export default MindMap

simple-mind-map/package.json

@@ -0,0 +1,49 @@
+{
+  "name": "simple-mind-map",
+  "version": "0.6.9-fix.1",
+  "description": "一个简单的web在线思维导图",
+  "authors": [
+    {
+      "name": "街角小林",
+      "email": "1013335014@qq.com"
+    },
+    {
+      "name": "理想青年实验室",
+      "url": "http://lxqnsys.com/"
+    }
+  ],
+  "license": "MIT",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/wanglin2/mind-map"
+  },
+  "scripts": {
+    "lint": "eslint src/",
+    "format": "prettier --write ."
+  },
+  "module": "index.js",
+  "__main": "./dist/simpleMindMap.umd.min.js",
+  "dependencies": {
+    "@svgdotjs/svg.js": "^3.0.16",
+    "deepmerge": "^1.5.2",
+    "eventemitter3": "^4.0.7",
+    "html2canvas": "^1.4.1",
+    "jspdf": "^2.5.1",
+    "jszip": "^3.10.1",
+    "mdast-util-from-markdown": "^1.3.0",
+    "quill": "^1.3.6",
+    "uuid": "^9.0.0",
+    "xml-js": "^1.6.11"
+  },
+  "keywords": [
+    "javascript",
+    "svg",
+    "mind-map",
+    "mindMap",
+    "MindMap"
+  ],
+  "devDependencies": {
+    "eslint": "^8.25.0",
+    "prettier": "^2.7.1"
+  }
+}

simple-mind-map/scripts/walkJsFiles.js

@@ -0,0 +1,46 @@
+// 遍历所有js文件
+const path = require('path')
+const fs = require('fs')
+
+const entryPath = path.resolve(__dirname, '../src')
+
+const transform = dir => {
+  let dirs = fs.readdirSync(dir)
+  dirs.forEach(item => {
+    let file = path.join(dir, item)
+    if (fs.statSync(file).isDirectory()) {
+      transform(file)
+    } else if (/\.js$/.test(file)) {
+      transformFile(file)
+    }
+  })
+}
+
+const transformFile = file => {
+  console.log(file);
+  let content = fs.readFileSync(file, 'utf-8')
+  countCodeLines(content)
+  // transformComments(file, content)
+}
+
+// 统计代码行数
+let totalLines = 0
+const countCodeLines = (content) => {
+  totalLines += content.split(/\n/).length
+}
+
+// 转换注释类型
+const transformComments = (file, content) => {
+  console.log('当前转换文件：', file)
+  content = content.replace(/\/\*\*[^/]+\*\//g, str => {
+    let res = /@Desc:([^\n]+)\n/g.exec(str)
+    if (res.length > 0) {
+      return '// ' + res[1]
+    }
+  })
+  fs.writeFileSync(file, content)
+}
+
+transform(entryPath)
+transformFile(path.join(__dirname, '../index.js'))
+console.log(totalLines);

simple-mind-map/src/constants/constant.js

@@ -0,0 +1,332 @@
+//  标签颜色列表
+export const tagColorList = [
+  {
+    color: 'rgb(77, 65, 0)',
+    background: 'rgb(255, 244, 179)'
+  },
+  {
+    color: 'rgb(0, 50, 77)',
+    background: 'rgb(179, 229, 255)'
+  },
+  {
+    color: 'rgb(77, 0, 73)',
+    background: 'rgb(255, 179, 251)'
+  },
+  {
+    color: 'rgb(57, 77, 0)',
+    background: 'rgb(236, 255, 179)'
+  },
+  {
+    color: 'rgb(0, 77, 47)',
+    background: 'rgb(179, 255, 226)'
+  }
+]
+
+//  主题列表
+export const themeList = [
+  {
+    name: '默认',
+    value: 'default',
+    dark: false
+  },
+  {
+    name: '暗色2',
+    value: 'dark2',
+    dark: true
+  },
+  {
+    name: '天清绿',
+    value: 'skyGreen',
+    dark: false
+  },
+  {
+    name: '脑图经典2',
+    value: 'classic2',
+    dark: false
+  },
+  {
+    name: '脑图经典3',
+    value: 'classic3',
+    dark: false
+  },
+  {
+    name: '经典绿',
+    value: 'classicGreen',
+    dark: false
+  },
+  {
+    name: '经典蓝',
+    value: 'classicBlue',
+    dark: false
+  },
+  {
+    name: '天空蓝',
+    value: 'blueSky',
+    dark: false
+  },
+  {
+    name: '脑残粉',
+    value: 'brainImpairedPink',
+    dark: false
+  },
+  {
+    name: '暗色',
+    value: 'dark',
+    dark: true
+  },
+  {
+    name: '泥土黄',
+    value: 'earthYellow',
+    dark: false
+  },
+  {
+    name: '清新绿',
+    value: 'freshGreen',
+    dark: false
+  },
+  {
+    name: '清新红',
+    value: 'freshRed',
+    dark: false
+  },
+  {
+    name: '浪漫紫',
+    value: 'romanticPurple',
+    dark: false
+  },
+  {
+    name: '粉红葡萄',
+    value: 'pinkGrape',
+    dark: false
+  },
+  {
+    name: '薄荷',
+    value: 'mint',
+    dark: false
+  },
+  {
+    name: '金色vip',
+    value: 'gold',
+    dark: false
+  },
+  {
+    name: '活力橙',
+    value: 'vitalityOrange',
+    dark: false
+  },
+  {
+    name: '绿叶',
+    value: 'greenLeaf',
+    dark: false
+  },
+  {
+    name: '脑图经典',
+    value: 'classic',
+    dark: true
+  },
+  {
+    name: '脑图经典4',
+    value: 'classic4',
+    dark: false
+  },
+  {
+    name: '小黄人',
+    value: 'minions',
+    dark: false
+  },
+  {
+    name: '简约黑',
+    value: 'simpleBlack',
+    dark: true
+  },
+  {
+    name: '课程绿',
+    value: 'courseGreen',
+    dark: false
+  },
+  {
+    name: '咖啡',
+    value: 'coffee',
+    dark: false
+  },
+  {
+    name: '红色精神',
+    value: 'redSpirit',
+    dark: false
+  },
+  {
+    name: '黑色幽默',
+    value: 'blackHumour',
+    dark: true
+  },
+  {
+    name: '深夜办公室',
+    value: 'lateNightOffice',
+    dark: true
+  },
+  {
+    name: '黑金',
+    value: 'blackGold',
+    dark: true
+  },
+  {
+    name: '牛油果',
+    value: 'avocado',
+    dark: false
+  },
+  {
+    name: '秋天',
+    value: 'autumn',
+    dark: false
+  },
+  {
+    name: '橙汁',
+    value: 'orangeJuice',
+    dark: true
+  }
+]
+
+// 常量
+export const CONSTANTS = {
+  CHANGE_THEME: 'changeTheme',
+  CHANGE_LAYOUT: 'changeLayout',
+  SET_DATA: 'setData',
+  TRANSFORM_TO_NORMAL_NODE: 'transformAllNodesToNormalNode',
+  MODE: {
+    READONLY: 'readonly',
+    EDIT: 'edit'
+  },
+  LAYOUT: {
+    LOGICAL_STRUCTURE: 'logicalStructure',
+    MIND_MAP: 'mindMap',
+    ORGANIZATION_STRUCTURE: 'organizationStructure',
+    CATALOG_ORGANIZATION: 'catalogOrganization',
+    TIMELINE: 'timeline',
+    TIMELINE2: 'timeline2',
+    FISHBONE: 'fishbone',
+    VERTICAL_TIMELINE: 'verticalTimeline'
+  },
+  DIR: {
+    UP: 'up',
+    LEFT: 'left',
+    DOWN: 'down',
+    RIGHT: 'right'
+  },
+  KEY_DIR: {
+    LEFT: 'Left',
+    UP: 'Up',
+    RIGHT: 'Right',
+    DOWN: 'Down'
+  },
+  SHAPE: {
+    RECTANGLE: 'rectangle',
+    DIAMOND: 'diamond',
+    PARALLELOGRAM: 'parallelogram',
+    ROUNDED_RECTANGLE: 'roundedRectangle',
+    OCTAGONAL_RECTANGLE: 'octagonalRectangle',
+    OUTER_TRIANGULAR_RECTANGLE: 'outerTriangularRectangle',
+    INNER_TRIANGULAR_RECTANGLE: 'innerTriangularRectangle',
+    ELLIPSE: 'ellipse',
+    CIRCLE: 'circle'
+  },
+  MOUSE_WHEEL_ACTION: {
+    ZOOM: 'zoom',
+    MOVE: 'move'
+  },
+  INIT_ROOT_NODE_POSITION: {
+    LEFT: 'left',
+    TOP: 'top',
+    RIGHT: 'right',
+    BOTTOM: 'bottom',
+    CENTER: 'center'
+  },
+  LAYOUT_GROW_DIR: {
+    LEFT: 'left',
+    TOP: 'top',
+    RIGHT: 'right',
+    BOTTOM: 'bottom'
+  },
+  PASTE_TYPE: {
+    CLIP_BOARD: 'clipBoard',
+    CANVAS: 'canvas'
+  }
+}
+
+export const initRootNodePositionMap = {
+  [CONSTANTS.INIT_ROOT_NODE_POSITION.LEFT]: 0,
+  [CONSTANTS.INIT_ROOT_NODE_POSITION.TOP]: 0,
+  [CONSTANTS.INIT_ROOT_NODE_POSITION.RIGHT]: 1,
+  [CONSTANTS.INIT_ROOT_NODE_POSITION.BOTTOM]: 1,
+  [CONSTANTS.INIT_ROOT_NODE_POSITION.CENTER]: 0.5,
+}
+
+//  布局结构列表
+export const layoutList = [
+  {
+    name: '逻辑结构图',
+    value: CONSTANTS.LAYOUT.LOGICAL_STRUCTURE,
+  },
+  {
+    name: '思维导图',
+    value: CONSTANTS.LAYOUT.MIND_MAP,
+  },
+  {
+    name: '组织结构图',
+    value: CONSTANTS.LAYOUT.ORGANIZATION_STRUCTURE,
+  },
+  {
+    name: '目录组织图',
+    value: CONSTANTS.LAYOUT.CATALOG_ORGANIZATION,
+  },
+  {
+    name: '时间轴',
+    value: CONSTANTS.LAYOUT.TIMELINE,
+  },
+  {
+    name: '时间轴2',
+    value: CONSTANTS.LAYOUT.TIMELINE2,
+  },
+  {
+    name: '竖向时间轴',
+    value: CONSTANTS.LAYOUT.VERTICAL_TIMELINE,
+  },
+  {
+    name: '鱼骨图',
+    value: CONSTANTS.LAYOUT.FISHBONE,
+  }
+]
+export const layoutValueList = [
+  CONSTANTS.LAYOUT.LOGICAL_STRUCTURE,
+  CONSTANTS.LAYOUT.MIND_MAP,
+  CONSTANTS.LAYOUT.CATALOG_ORGANIZATION,
+  CONSTANTS.LAYOUT.ORGANIZATION_STRUCTURE,
+  CONSTANTS.LAYOUT.TIMELINE,
+  CONSTANTS.LAYOUT.TIMELINE2,
+  CONSTANTS.LAYOUT.VERTICAL_TIMELINE,
+  CONSTANTS.LAYOUT.FISHBONE
+]
+
+// 节点数据中非样式的字段
+export const nodeDataNoStylePropList = [
+  'text',
+  'image',
+  'imageTitle',
+  'imageSize',
+  'icon',
+  'tag',
+  'hyperlink',
+  'hyperlinkTitle',
+  'note',
+  'expand',
+  'isActive',
+  'generalization',
+  'richText',
+  'resetRichText',
+  'uid',
+  'activeStyle'
+]
+
+// 数据缓存
+export const commonCaches = {
+  measureCustomNodeContentSizeEl: null
+}

simple-mind-map/src/constants/defaultOptions.js

@@ -0,0 +1,126 @@
+import { CONSTANTS } from './constant'
+
+// 默认选项配置
+export const defaultOpt = {
+  // 是否只读
+  readonly: false,
+  // 布局
+  layout: CONSTANTS.LAYOUT.LOGICAL_STRUCTURE,
+  // 如果结构为鱼骨图，那么可以通过该选项控制倾斜角度
+  fishboneDeg: 45,
+  // 主题
+  theme: 'default', // 内置主题：default（默认主题）
+  // 主题配置，会和所选择的主题进行合并
+  themeConfig: {},
+  // 放大缩小的增量比例
+  scaleRatio: 0.2,
+  // 鼠标缩放是否以鼠标当前位置为中心点，否则以画布中心点
+  mouseScaleCenterUseMousePosition: true,
+  // 最多显示几个标签
+  maxTag: 5,
+  // 导出图片时的内边距
+  exportPadding: 20,
+  // 展开收缩按钮尺寸
+  expandBtnSize: 20,
+  // 节点里图片和文字的间距
+  imgTextMargin: 5,
+  // 节点里各种文字信息的间距，如图标和文字的间距
+  textContentMargin: 2,
+  // 多选节点时鼠标移动到边缘时的画布移动偏移量
+  selectTranslateStep: 3,
+  // 多选节点时鼠标移动距边缘多少距离时开始偏移
+  selectTranslateLimit: 20,
+  // 自定义节点备注内容显示
+  customNoteContentShow: null,
+  /*
+          {
+              show(){},
+              hide(){}
+          }
+      */
+  // 是否开启节点自由拖拽
+  enableFreeDrag: false,
+  // 水印配置
+  watermarkConfig: {
+    text: '',
+    lineSpacing: 100,
+    textSpacing: 100,
+    angle: 30,
+    textStyle: {
+      color: '#999',
+      opacity: 0.5,
+      fontSize: 14
+    }
+  },
+  // 达到该宽度文本自动换行
+  textAutoWrapWidth: 500,
+  // 自定义鼠标滚轮事件处理
+  // 可以传一个函数，回调参数为事件对象
+  customHandleMousewheel: null,
+  // 鼠标滚动的行为，如果customHandleMousewheel传了自定义函数，这个属性不生效
+  mousewheelAction: CONSTANTS.MOUSE_WHEEL_ACTION.ZOOM, // zoom（放大缩小）、move（上下移动）
+  // 当mousewheelAction设为move时，可以通过该属性控制鼠标滚动一下视图移动的步长，单位px
+  mousewheelMoveStep: 100,
+  // 当mousewheelAction设为zoom时，默认向前滚动是缩小，向后滚动是放大，如果该属性设为true，那么会反过来
+  mousewheelZoomActionReverse: false,
+  // 默认插入的二级节点的文字
+  defaultInsertSecondLevelNodeText: '二级节点',
+  // 默认插入的二级以下节点的文字
+  defaultInsertBelowSecondLevelNodeText: '分支主题',
+  // 展开收起按钮的颜色
+  expandBtnStyle: {
+    color: '#808080',
+    fill: '#fff'
+  },
+  // 自定义展开收起按钮的图标
+  expandBtnIcon: {
+    open: '', // svg字符串
+    close: ''
+  },
+  // 是否只有当鼠标在画布内才响应快捷键事件
+  enableShortcutOnlyWhenMouseInSvg: true,
+  // 初始根节点的位置
+  initRootNodePosition: null,
+  // 导出png、svg、pdf时的图形内边距
+  exportPaddingX: 10,
+  exportPaddingY: 10,
+  // 节点文本编辑框的z-index
+  nodeTextEditZIndex: 3000,
+  // 节点备注浮层的z-index
+  nodeNoteTooltipZIndex: 3000,
+  // 是否在点击了画布外的区域时结束节点文本的编辑状态
+  isEndNodeTextEditOnClickOuter: true,
+  // 最大历史记录数
+  maxHistoryCount: 1000,
+  // 是否一直显示节点的展开收起按钮，默认为鼠标移上去和激活时才显示
+  alwaysShowExpandBtn: false,
+  // 扩展节点可插入的图标
+  iconList: [
+    // {
+    //   name: '',// 分组名称
+    //   type: '',// 分组的值
+    //   list: [// 分组下的图标列表
+    //     {
+    //       name: '',// 图标名称
+    //       icon:''// 图标，可以传svg或图片
+    //     }
+    //   ]
+    // }
+  ],
+  // 节点最大缓存数量
+  maxNodeCacheCount: 1000,
+  // 关联线默认文字
+  defaultAssociativeLineText: '关联',
+  // 思维导图适应画布大小时的内边距
+  fitPadding: 50,
+  // 是否开启按住ctrl键多选节点功能
+  enableCtrlKeyNodeSelection: true,
+  // 设置为左键多选节点，右键拖动画布
+  useLeftKeySelectionRightKeyDrag: false,
+  // 节点即将进入编辑前的回调方法，如果该方法返回true以外的值，那么将取消编辑，函数可以返回一个值，或一个Promise，回调参数为节点实例
+  beforeTextEdit: null,
+  // 是否开启自定义节点内容
+  isUseCustomNodeContent: false,
+  // 自定义返回节点内容的方法
+  customCreateNodeContent: null
+}

simple-mind-map/src/core/command/Command.js

@@ -0,0 +1,154 @@
+import { copyRenderTree, simpleDeepClone, nextTick } from '../../utils'
+
+//  命令类
+class Command {
+  //  构造函数
+  constructor(opt = {}) {
+    this.opt = opt
+    this.mindMap = opt.mindMap
+    this.commands = {}
+    this.history = []
+    this.activeHistoryIndex = 0
+    // 注册快捷键
+    this.registerShortcutKeys()
+    this.addHistory = nextTick(this.addHistory, this)
+  }
+
+  //  清空历史数据
+  clearHistory() {
+    this.history = []
+    this.activeHistoryIndex = 0
+    this.mindMap.emit('back_forward', 0, 0)
+  }
+
+  //  注册快捷键
+  registerShortcutKeys() {
+    this.mindMap.keyCommand.addShortcut('Control+z', () => {
+      this.mindMap.execCommand('BACK')
+    })
+    this.mindMap.keyCommand.addShortcut('Control+y', () => {
+      this.mindMap.execCommand('FORWARD')
+    })
+  }
+
+  //  执行命令
+  exec(name, ...args) {
+    if (this.commands[name]) {
+      this.commands[name].forEach(fn => {
+        fn(...args)
+      })
+      if (['BACK', 'FORWARD', 'SET_NODE_ACTIVE', 'CLEAR_ACTIVE_NODE'].includes(name)) {
+        return
+      }
+      this.addHistory()
+    }
+  }
+
+  //  添加命令
+  add(name, fn) {
+    if (this.commands[name]) {
+      this.commands[name].push(fn)
+    } else {
+      this.commands[name] = [fn]
+    }
+  }
+
+  //  移除命令
+  remove(name, fn) {
+    if (!this.commands[name]) {
+      return
+    }
+    if (!fn) {
+      this.commands[name] = []
+      delete this.commands[name]
+    } else {
+      let index = this.commands[name].find(item => {
+        return item === fn
+      })
+      if (index !== -1) {
+        this.commands[name].splice(index, 1)
+      }
+    }
+  }
+
+  //  添加回退数据
+  addHistory() {
+    if (this.mindMap.opt.readonly) {
+      return
+    }
+    let data = this.getCopyData()
+    // 此次数据和上次一样则不重复添加
+    if (this.history.length > 0 && JSON.stringify(this.history[this.history.length - 1]) === JSON.stringify(data)) {
+      return
+    }
+    // 删除当前历史指针后面的数据
+    this.history = this.history.slice(0, this.activeHistoryIndex + 1)
+    this.history.push(simpleDeepClone(data))
+    // 历史记录数超过最大数量
+    if (this.history.length > this.mindMap.opt.maxHistoryCount) {
+      this.history.shift()
+    }
+    this.activeHistoryIndex = this.history.length - 1
+    this.mindMap.emit('data_change', data)
+    this.mindMap.emit(
+      'back_forward',
+      this.activeHistoryIndex,
+      this.history.length
+    )
+  }
+
+  //  回退
+  back(step = 1) {
+    if (this.mindMap.opt.readonly) {
+      return
+    }
+    if (this.activeHistoryIndex - step >= 0) {
+      this.activeHistoryIndex -= step
+      this.mindMap.emit(
+        'back_forward',
+        this.activeHistoryIndex,
+        this.history.length
+      )
+      let data = simpleDeepClone(this.history[this.activeHistoryIndex])
+      this.mindMap.emit('data_change', data)
+      return data
+    }
+  }
+
+  //  前进
+  forward(step = 1) {
+    if (this.mindMap.opt.readonly) {
+      return
+    }
+    let len = this.history.length
+    if (this.activeHistoryIndex + step <= len - 1) {
+      this.activeHistoryIndex += step
+      this.mindMap.emit('back_forward', this.activeHistoryIndex, this.history.length)
+      let data = simpleDeepClone(this.history[this.activeHistoryIndex])
+      this.mindMap.emit('data_change', data)
+      return data
+    }
+  }
+
+  //  获取渲染树数据副本
+  getCopyData() {
+    return copyRenderTree({}, this.mindMap.renderer.renderTree, true)
+  }
+
+  // 移除节点数据中的uid
+  removeDataUid(data) {
+    data = simpleDeepClone(data)
+    let walk = (root) => {
+      delete root.data.uid
+      if (root.children && root.children.length > 0) {
+        root.children.forEach((item) => {
+          walk(item)
+        })
+      }
+    }
+    walk(data)
+    return data
+  }
+}
+
+export default Command

simple-mind-map/src/core/command/KeyCommand.js

@@ -0,0 +1,164 @@
+import { keyMap } from './keyMap'
+//  快捷按键、命令处理类
+export default class KeyCommand {
+  //  构造函数
+  constructor(opt) {
+    this.opt = opt
+    this.mindMap = opt.mindMap
+    this.shortcutMap = {
+      //Enter: [fn]
+    }
+    this.shortcutMapCache = {}
+    this.isPause = false
+    this.isInSvg = false
+    this.bindEvent()
+  }
+
+  //  暂停快捷键响应
+  pause() {
+    this.isPause = true
+  }
+
+  //  恢复快捷键响应
+  recovery() {
+    this.isPause = false
+  }
+
+  //  保存当前注册的快捷键数据，然后清空快捷键数据
+  save() {
+    this.shortcutMapCache = this.shortcutMap
+    this.shortcutMap = {}
+  }
+
+  //  恢复保存的快捷键数据，然后清空缓存数据
+  restore() {
+    this.shortcutMap = this.shortcutMapCache
+    this.shortcutMapCache = {}
+  }
+
+  //  绑定事件
+  bindEvent() {
+    // 只有当鼠标在画布内才响应快捷键
+    this.mindMap.on('svg_mouseenter', () => {
+      this.isInSvg = true
+    })
+    this.mindMap.on('svg_mouseleave', () => {
+      if (this.mindMap.richText && this.mindMap.richText.showTextEdit) {
+        return
+      }
+      if (this.mindMap.renderer.textEdit.showTextEdit || (this.mindMap.associativeLine && this.mindMap.associativeLine.showTextEdit)) {
+        return
+      }
+      this.isInSvg = false
+    })
+    window.addEventListener('keydown', e => {
+      if (this.isPause || (this.mindMap.opt.enableShortcutOnlyWhenMouseInSvg && !this.isInSvg)) {
+        return
+      }
+      Object.keys(this.shortcutMap).forEach(key => {
+        if (this.checkKey(e, key)) {
+          // 粘贴事件不组织，因为要监听paste事件
+          if (!this.checkKey(e, 'Control+v')) {
+            e.stopPropagation()
+            e.preventDefault()
+          }
+          this.shortcutMap[key].forEach(fn => {
+            fn()
+          })
+        }
+      })
+    })
+  }
+
+  //  检查键值是否符合
+  checkKey(e, key) {
+    let o = this.getOriginEventCodeArr(e)
+    let k = this.getKeyCodeArr(key)
+    if (o.length !== k.length) {
+      return false
+    }
+    for (let i = 0; i < o.length; i++) {
+      let index = k.findIndex(item => {
+        return item === o[i]
+      })
+      if (index === -1) {
+        return false
+      } else {
+        k.splice(index, 1)
+      }
+    }
+    return true
+  }
+
+  //  获取事件对象里的键值数组
+  getOriginEventCodeArr(e) {
+    let arr = []
+    if (e.ctrlKey || e.metaKey) {
+      arr.push(keyMap['Control'])
+    }
+    if (e.altKey) {
+      arr.push(keyMap['Alt'])
+    }
+    if (e.shiftKey) {
+      arr.push(keyMap['Shift'])
+    }
+    if (!arr.includes(e.keyCode)) {
+      arr.push(e.keyCode)
+    }
+    return arr
+  }
+
+  //  获取快捷键对应的键值数组
+  getKeyCodeArr(key) {
+    let keyArr = key.split(/\s*\+\s*/)
+    let arr = []
+    keyArr.forEach(item => {
+      arr.push(keyMap[item])
+    })
+    return arr
+  }
+
+  //  添加快捷键命令
+  /**
+   * Enter
+   * Tab | Insert
+   * Shift + a
+   */
+  addShortcut(key, fn) {
+    key.split(/\s*\|\s*/).forEach(item => {
+      if (this.shortcutMap[item]) {
+        this.shortcutMap[item].push(fn)
+      } else {
+        this.shortcutMap[item] = [fn]
+      }
+    })
+  }
+
+  //  移除快捷键命令
+  removeShortcut(key, fn) {
+    key.split(/\s*\|\s*/).forEach(item => {
+      if (this.shortcutMap[item]) {
+        if (fn) {
+          let index = this.shortcutMap[item].findIndex(f => {
+            return f === fn
+          })
+          if (index !== -1) {
+            this.shortcutMap[item].splice(index, 1)
+          }
+        } else {
+          this.shortcutMap[item] = []
+          delete this.shortcutMap[item]
+        }
+      }
+    })
+  }
+
+  //  获取指定快捷键的处理函数
+  getShortcutFn(key) {
+    let res = []
+    key.split(/\s*\|\s*/).forEach(item => {
+      res = this.shortcutMap[item] || []
+    })
+    return res
+  }
+}

simple-mind-map/src/core/command/keyMap.js

@@ -0,0 +1,69 @@
+const map = {
+  Backspace: 8,
+  Tab: 9,
+  Enter: 13,
+
+  Shift: 16,
+  Control: 17,
+  Alt: 18,
+  CapsLock: 20,
+
+  Esc: 27,
+
+  Spacebar: 32,
+
+  PageUp: 33,
+  PageDown: 34,
+  End: 35,
+  Home: 36,
+
+  Insert: 45,
+
+  Left: 37,
+  Up: 38,
+  Right: 39,
+  Down: 40,
+
+  Del: 46,
+
+  NumLock: 144,
+
+  Cmd: 91,
+  CmdFF: 224,
+  F1: 112,
+  F2: 113,
+  F3: 114,
+  F4: 115,
+  F5: 116,
+  F6: 117,
+  F7: 118,
+  F8: 119,
+  F9: 120,
+  F10: 121,
+  F11: 122,
+  F12: 123,
+
+  '`': 192,
+  '=': 187,
+  '-': 189,
+
+  '/': 191,
+  '.': 190
+}
+
+// 数字
+for (let i = 0; i <= 9; i++) {
+  map[i] = i + 48
+}
+
+// 字母
+'abcdefghijklmnopqrstuvwxyz'.split('').forEach((n, index) => {
+  map[n] = index + 65
+})
+
+export const keyMap = map
+
+export const isKey = (e, key) => {
+  let code = typeof e === 'object' ? e.keyCode : e
+  return map[key] === code
+}

simple-mind-map/src/core/event/Event.js

@@ -0,0 +1,174 @@
+import EventEmitter from 'eventemitter3'
+import { CONSTANTS } from '../../constants/constant'
+
+//  事件类
+class Event extends EventEmitter {
+  //  构造函数
+  constructor(opt = {}) {
+    super()
+    this.opt = opt
+    this.mindMap = opt.mindMap
+    this.isLeftMousedown = false
+    this.isRightMousedown = false
+    this.mousedownPos = {
+      x: 0,
+      y: 0
+    }
+    this.mousemovePos = {
+      x: 0,
+      y: 0
+    }
+    this.mousemoveOffset = {
+      x: 0,
+      y: 0
+    }
+    this.bindFn()
+    this.bind()
+  }
+
+  //  绑定函数上下文
+  bindFn() {
+    this.onBodyClick = this.onBodyClick.bind(this)
+    this.onDrawClick = this.onDrawClick.bind(this)
+    this.onMousedown = this.onMousedown.bind(this)
+    this.onMousemove = this.onMousemove.bind(this)
+    this.onMouseup = this.onMouseup.bind(this)
+    this.onMousewheel = this.onMousewheel.bind(this)
+    this.onContextmenu = this.onContextmenu.bind(this)
+    this.onSvgMousedown = this.onSvgMousedown.bind(this)
+    this.onKeyup = this.onKeyup.bind(this)
+    this.onMouseenter = this.onMouseenter.bind(this)
+    this.onMouseleave = this.onMouseleave.bind(this)
+  }
+
+  //  绑定事件
+  bind() {
+    document.body.addEventListener('click', this.onBodyClick)
+    this.mindMap.svg.on('click', this.onDrawClick)
+    this.mindMap.el.addEventListener('mousedown', this.onMousedown)
+    this.mindMap.svg.on('mousedown', this.onSvgMousedown)
+    window.addEventListener('mousemove', this.onMousemove)
+    window.addEventListener('mouseup', this.onMouseup)
+    this.mindMap.el.addEventListener('wheel', this.onMousewheel)
+    this.mindMap.svg.on('contextmenu', this.onContextmenu)
+    this.mindMap.svg.on('mouseenter', this.onMouseenter)
+    this.mindMap.svg.on('mouseleave', this.onMouseleave)
+    window.addEventListener('keyup', this.onKeyup)
+  }
+
+  //  解绑事件
+  unbind() {
+    document.body.removeEventListener('click', this.onBodyClick)
+    this.mindMap.svg.off('click', this.onDrawClick)
+    this.mindMap.el.removeEventListener('mousedown', this.onMousedown)
+    window.removeEventListener('mousemove', this.onMousemove)
+    window.removeEventListener('mouseup', this.onMouseup)
+    this.mindMap.el.removeEventListener('wheel', this.onMousewheel)
+    this.mindMap.svg.off('contextmenu', this.onContextmenu)
+    this.mindMap.svg.off('mouseenter', this.onMouseenter)
+    this.mindMap.svg.off('mouseleave', this.onMouseleave)
+    window.removeEventListener('keyup', this.onKeyup)
+  }
+
+  //   画布的单击事件
+  onDrawClick(e) {
+    this.emit('draw_click', e)
+  }
+
+  // 页面的单击事件
+  onBodyClick(e) {
+    this.emit('body_click', e)
+  }
+
+  //   svg画布的鼠标按下事件
+  onSvgMousedown(e) {
+    this.emit('svg_mousedown', e)
+  }
+
+  //  鼠标按下事件
+  onMousedown(e) {
+    // 鼠标左键
+    if (e.which === 1) {
+      this.isLeftMousedown = true
+    } else if (e.which === 3) {
+      this.isRightMousedown = true
+    }
+    this.mousedownPos.x = e.clientX
+    this.mousedownPos.y = e.clientY
+    this.emit('mousedown', e, this)
+  }
+
+  //  鼠标移动事件
+  onMousemove(e) {
+    let { useLeftKeySelectionRightKeyDrag } = this.mindMap.opt
+    this.mousemovePos.x = e.clientX
+    this.mousemovePos.y = e.clientY
+    this.mousemoveOffset.x = e.clientX - this.mousedownPos.x
+    this.mousemoveOffset.y = e.clientY - this.mousedownPos.y
+    this.emit('mousemove', e, this)
+    if (
+      useLeftKeySelectionRightKeyDrag
+        ? this.isRightMousedown
+        : this.isLeftMousedown
+    ) {
+      e.preventDefault()
+      this.emit('drag', e, this)
+    }
+  }
+
+  //  鼠标松开事件
+  onMouseup(e) {
+    this.isLeftMousedown = false
+    this.isRightMousedown = false
+    this.emit('mouseup', e, this)
+  }
+
+  //  鼠标滚动
+  onMousewheel(e) {
+    e.stopPropagation()
+    e.preventDefault()
+    let dir
+    // 解决mac触控板双指缩放方向相反的问题
+    if (e.ctrlKey) {
+      if (e.deltaY > 0) dir = CONSTANTS.DIR.UP
+      if (e.deltaY < 0) dir = CONSTANTS.DIR.DOWN
+      if (e.deltaX > 0) dir = CONSTANTS.DIR.LEFT
+      if (e.deltaX < 0) dir = CONSTANTS.DIR.RIGHT
+    } else {
+      if ((e.wheelDeltaY || e.detail) > 0) dir = CONSTANTS.DIR.UP
+      if ((e.wheelDeltaY || e.detail) < 0) dir = CONSTANTS.DIR.DOWN
+      if ((e.wheelDeltaX || e.detail) > 0) dir = CONSTANTS.DIR.LEFT
+      if ((e.wheelDeltaX || e.detail) < 0) dir = CONSTANTS.DIR.RIGHT
+    }
+    // 判断是否是触控板
+    let isTouchPad = false
+    // mac、windows
+    if (e.wheelDeltaY === e.deltaY * -3 || Math.abs(e.wheelDeltaY) <= 10) {
+      isTouchPad = true
+    }
+    this.emit('mousewheel', e, dir, this, isTouchPad)
+  }
+
+  //  鼠标右键菜单事件
+  onContextmenu(e) {
+    e.preventDefault()
+    this.emit('contextmenu', e)
+  }
+
+  //  按键松开事件
+  onKeyup(e) {
+    this.emit('keyup', e)
+  }
+
+  // 进入
+  onMouseenter(e) {
+    this.emit('svg_mouseenter', e)
+  }
+
+  // 离开
+  onMouseleave(e) {
+    this.emit('svg_mouseleave', e)
+  }
+}
+
+export default Event

simple-mind-map/src/core/render/TextEdit.js

@@ -0,0 +1,247 @@
+import { getStrWithBrFromHtml, checkNodeOuter } from '../../utils'
+
+//  节点文字编辑类
+export default class TextEdit {
+  //  构造函数
+  constructor(renderer) {
+    this.renderer = renderer
+    this.mindMap = renderer.mindMap
+    // 当前编辑的节点
+    this.currentNode = null
+    // 文本编辑框
+    this.textEditNode = null
+    // 隐藏的文本输入框
+    this.hiddenInputEl = null
+    // 文本编辑框是否显示
+    this.showTextEdit = false
+    // 如果编辑过程中缩放画布了，那么缓存当前编辑的内容
+    this.cacheEditingText = ''
+    this.bindEvent()
+    this.createHiddenInput()
+  }
+
+  //  事件
+  bindEvent() {
+    this.show = this.show.bind(this)
+    this.onScale = this.onScale.bind(this)
+    // 节点双击事件
+    this.mindMap.on('node_dblclick', this.show)
+    // 点击事件
+    this.mindMap.on('draw_click', () => {
+      // 隐藏文本编辑框
+      this.hideEditTextBox()
+    })
+    this.mindMap.on('body_click', () => {
+      // 隐藏文本编辑框
+      if (this.mindMap.opt.isEndNodeTextEditOnClickOuter) {
+        this.hideEditTextBox()
+      }
+    })
+    this.mindMap.on('svg_mousedown', () => {
+      // 隐藏文本编辑框
+      this.hideEditTextBox()
+    })
+    // 展开收缩按钮点击事件
+    this.mindMap.on('expand_btn_click', () => {
+      this.hideEditTextBox()
+    })
+    // 节点激活前事件
+    this.mindMap.on('before_node_active', () => {
+      this.hideEditTextBox()
+    })
+    // 节点激活事件
+    this.mindMap.on('node_active', () => {
+      this.focusHiddenInput()
+    })
+    // 注册编辑快捷键
+    this.mindMap.keyCommand.addShortcut('F2', () => {
+      if (this.renderer.activeNodeList.length <= 0) {
+        return
+      }
+      this.show(this.renderer.activeNodeList[0])
+    })
+    this.mindMap.on('scale', this.onScale)
+  }
+
+  // 创建一个隐藏的文本输入框
+  createHiddenInput() {
+    if (this.hiddenInputEl) return
+    this.hiddenInputEl = document.createElement('input')
+    this.hiddenInputEl.type = 'text'
+    this.hiddenInputEl.style.cssText = `
+      position: fixed;
+      left: -99999px;
+      top: -99999px;
+    `
+    // 监听粘贴事件
+    this.hiddenInputEl.addEventListener('paste', async event => {
+      event.preventDefault()
+      const text = (event.clipboardData || window.clipboardData).getData('text')
+      const files = event.clipboardData.files
+      let img = null
+      if (files.length > 0) {
+        for (let i = 0; i < files.length; i++) {
+          if (/^image\//.test(files[i].type)) {
+            img = files[i]
+            break
+          }
+        }
+      }
+      this.mindMap.emit('paste', {
+        text,
+        img
+      })
+    })
+    document.body.appendChild(this.hiddenInputEl)
+  }
+
+  // 让隐藏的文本输入框聚焦
+  focusHiddenInput() {
+    if (this.hiddenInputEl) this.hiddenInputEl.focus()
+  }
+
+  //  注册临时快捷键
+  registerTmpShortcut() {
+    // 注册回车快捷键
+    this.mindMap.keyCommand.addShortcut('Enter', () => {
+      this.hideEditTextBox()
+    })
+    this.mindMap.keyCommand.addShortcut('Tab', () => {
+      this.hideEditTextBox()
+    })
+  }
+
+  //  显示文本编辑框
+  // isInserting：是否是刚创建的节点
+  async show(node, e, isInserting = false) {
+    // 使用了自定义节点内容那么不响应编辑事件
+    if (node.isUseCustomNodeContent()) {
+      return
+    }
+    let { beforeTextEdit } = this.mindMap.opt
+    if (typeof beforeTextEdit === 'function') {
+      let isShow = false
+      try {
+        isShow = await beforeTextEdit(node, isInserting)
+      } catch (error) {
+        isShow = false
+      }
+      if (!isShow) return
+    }
+    this.currentNode = node
+    let { offsetLeft, offsetTop } = checkNodeOuter(this.mindMap, node)
+    this.mindMap.view.translateXY(offsetLeft, offsetTop)
+    let rect = node._textData.node.node.getBoundingClientRect()
+    if (this.mindMap.richText) {
+      this.mindMap.richText.showEditText(node, rect, isInserting)
+      return
+    }
+    this.showEditTextBox(node, rect)
+  }
+
+  // 处理画布缩放
+  onScale() {
+    if (!this.currentNode) return
+    if (this.mindMap.richText) {
+      this.mindMap.richText.cacheEditingText =
+        this.mindMap.richText.getEditText()
+      this.mindMap.richText.showTextEdit = false
+    } else {
+      this.cacheEditingText = this.getEditText()
+      this.showTextEdit = false
+    }
+    this.show(this.currentNode)
+  }
+
+  //  显示文本编辑框
+  showEditTextBox(node, rect) {
+    this.mindMap.emit('before_show_text_edit')
+    this.registerTmpShortcut()
+    if (!this.textEditNode) {
+      this.textEditNode = document.createElement('div')
+      this.textEditNode.style.cssText = `position:fixed;box-sizing: border-box;background-color:#fff;box-shadow: 0 0 20px rgba(0,0,0,.5);padding: 3px 5px;margin-left: -5px;margin-top: -3px;outline: none; word-break: break-all;`
+      this.textEditNode.setAttribute('contenteditable', true)
+      this.textEditNode.addEventListener('keyup', e => {
+        e.stopPropagation()
+      })
+      this.textEditNode.addEventListener('click', e => {
+        e.stopPropagation()
+      })
+      document.body.appendChild(this.textEditNode)
+    }
+    let scale = this.mindMap.view.scale
+    let lineHeight = node.style.merge('lineHeight')
+    let fontSize = node.style.merge('fontSize')
+    let textLines = (this.cacheEditingText || node.nodeData.data.text).split(
+      /\n/gim
+    )
+    let isMultiLine = node._textData.node.attr('data-ismultiLine') === 'true'
+    node.style.domText(this.textEditNode, scale, isMultiLine)
+    this.textEditNode.style.zIndex = this.mindMap.opt.nodeTextEditZIndex
+    this.textEditNode.innerHTML = textLines.join('<br>')
+    this.textEditNode.style.minWidth = rect.width + 10 + 'px'
+    this.textEditNode.style.minHeight = rect.height + 6 + 'px'
+    this.textEditNode.style.left = rect.left + 'px'
+    this.textEditNode.style.top = rect.top + 'px'
+    this.textEditNode.style.display = 'block'
+    this.textEditNode.style.maxWidth =
+      this.mindMap.opt.textAutoWrapWidth * scale + 'px'
+    if (isMultiLine && lineHeight !== 1) {
+      this.textEditNode.style.transform = `translateY(${
+        -((lineHeight * fontSize - fontSize) / 2) * scale
+      }px)`
+    }
+    this.showTextEdit = true
+    // 选中文本
+    if (!this.cacheEditingText) {
+      this.selectNodeText()
+    }
+    this.cacheEditingText = ''
+  }
+
+  //  选中文本
+  selectNodeText() {
+    let selection = window.getSelection()
+    let range = document.createRange()
+    range.selectNodeContents(this.textEditNode)
+    selection.removeAllRanges()
+    selection.addRange(range)
+  }
+
+  // 获取当前正在编辑的内容
+  getEditText() {
+    return getStrWithBrFromHtml(this.textEditNode.innerHTML)
+  }
+
+  //  隐藏文本编辑框
+  hideEditTextBox() {
+    this.currentNode = null
+    if (this.mindMap.richText) {
+      return this.mindMap.richText.hideEditText()
+    }
+    if (!this.showTextEdit) {
+      return
+    }
+    this.renderer.activeNodeList.forEach(node => {
+      let str = this.getEditText()
+      this.mindMap.execCommand('SET_NODE_TEXT', node, str)
+      if (node.isGeneralization) {
+        // 概要节点
+        node.generalizationBelongNode.updateGeneralization()
+      }
+      this.mindMap.render()
+    })
+    this.mindMap.emit(
+      'hide_text_edit',
+      this.textEditNode,
+      this.renderer.activeNodeList
+    )
+    this.textEditNode.style.display = 'none'
+    this.textEditNode.innerHTML = ''
+    this.textEditNode.style.fontFamily = 'inherit'
+    this.textEditNode.style.fontSize = 'inherit'
+    this.textEditNode.style.fontWeight = 'normal'
+    this.textEditNode.style.transform = 'translateY(0)'
+    this.showTextEdit = false
+  }
+}

simple-mind-map/src/core/render/node/Node.js

@@ -0,0 +1,832 @@
+import Style from './Style'
+import Shape from './Shape'
+import { asyncRun, nodeToHTML } from '../../../utils'
+import { G, Rect, ForeignObject, SVG } from '@svgdotjs/svg.js'
+import nodeGeneralizationMethods from './nodeGeneralization'
+import nodeExpandBtnMethods from './nodeExpandBtn'
+import nodeCommandWrapsMethods from './nodeCommandWraps'
+import nodeCreateContentsMethods from './nodeCreateContents'
+import { CONSTANTS } from '../../../constants/constant'
+
+//  节点类
+class Node {
+  //  构造函数
+  constructor(opt = {}) {
+    // 节点数据
+    this.nodeData = this.handleData(opt.data || {})
+    // id
+    this.uid = opt.uid
+    // 控制实例
+    this.mindMap = opt.mindMap
+    // 渲染实例
+    this.renderer = opt.renderer
+    // 渲染器
+    this.draw = opt.draw || null
+    // 样式实例
+    this.style = new Style(this)
+    // 形状实例
+    this.shapeInstance = new Shape(this)
+    this.shapePadding = {
+      paddingX: 0,
+      paddingY: 0
+    }
+    // 是否是根节点
+    this.isRoot = opt.isRoot === undefined ? false : opt.isRoot
+    // 是否是概要节点
+    this.isGeneralization =
+      opt.isGeneralization === undefined ? false : opt.isGeneralization
+    this.generalizationBelongNode = null
+    // 节点层级
+    this.layerIndex = opt.layerIndex === undefined ? 0 : opt.layerIndex
+    // 节点宽
+    this.width = opt.width || 0
+    // 节点高
+    this.height = opt.height || 0
+    // left
+    this._left = opt.left || 0
+    // top
+    this._top = opt.top || 0
+    // 自定义位置
+    this.customLeft = opt.data.data.customLeft || undefined
+    this.customTop = opt.data.data.customTop || undefined
+    // 是否正在拖拽中
+    this.isDrag = false
+    // 父节点
+    this.parent = opt.parent || null
+    // 子节点
+    this.children = opt.children || []
+    // 节点内容的容器
+    this.group = null
+    this.shapeNode = null // 节点形状节点
+    // 节点内容对象
+    this._customNodeContent = null
+    this._imgData = null
+    this._iconData = null
+    this._textData = null
+    this._hyperlinkData = null
+    this._tagData = null
+    this._noteData = null
+    this.noteEl = null
+    this._expandBtn = null
+    this._lastExpandBtnType = null
+    this._showExpandBtn = false
+    this._openExpandNode = null
+    this._closeExpandNode = null
+    this._fillExpandNode = null
+    this._lines = []
+    this._generalizationLine = null
+    this._generalizationNode = null
+    this._unVisibleRectRegionNode = null
+    this._isMouseenter = false
+    // 尺寸信息
+    this._rectInfo = {
+      imgContentWidth: 0,
+      imgContentHeight: 0,
+      textContentWidth: 0,
+      textContentHeight: 0
+    }
+    // 概要节点的宽高
+    this._generalizationNodeWidth = 0
+    this._generalizationNodeHeight = 0
+    // 各种文字信息的间距
+    this.textContentItemMargin = this.mindMap.opt.textContentMargin
+    // 图片和文字节点的间距
+    this.blockContentMargin = this.mindMap.opt.imgTextMargin
+    // 展开收缩按钮尺寸
+    this.expandBtnSize = this.mindMap.opt.expandBtnSize
+    // 是否是多选节点
+    this.isMultipleChoice = false
+    // 是否需要重新layout
+    this.needLayout = false
+    // 概要相关方法
+    Object.keys(nodeGeneralizationMethods).forEach(item => {
+      this[item] = nodeGeneralizationMethods[item].bind(this)
+    })
+    // 展开收起按钮相关方法
+    Object.keys(nodeExpandBtnMethods).forEach(item => {
+      this[item] = nodeExpandBtnMethods[item].bind(this)
+    })
+    // 命令的相关方法
+    Object.keys(nodeCommandWrapsMethods).forEach(item => {
+      this[item] = nodeCommandWrapsMethods[item].bind(this)
+    })
+    // 创建节点内容的相关方法
+    Object.keys(nodeCreateContentsMethods).forEach(item => {
+      this[item] = nodeCreateContentsMethods[item].bind(this)
+    })
+    // 初始化
+    this.getSize()
+  }
+
+  // 支持自定义位置
+  get left() {
+    return this.customLeft || this._left
+  }
+
+  set left(val) {
+    this._left = val
+  }
+
+  get top() {
+    return this.customTop || this._top
+  }
+
+  set top(val) {
+    this._top = val
+  }
+
+  //  复位部分布局时会重新设置的数据
+  reset() {
+    this.children = []
+    this.parent = null
+    this.isRoot = false
+    this.layerIndex = 0
+    this.left = 0
+    this.top = 0
+  }
+
+  //  处理数据
+  handleData(data) {
+    data.data.expand = data.data.expand === false ? false : true
+    data.data.isActive = data.data.isActive === true ? true : false
+    data.children = data.children || []
+    return data
+  }
+
+  //  创建节点的各个内容对象数据
+  createNodeData() {
+    // 自定义节点内容
+    let { isUseCustomNodeContent, customCreateNodeContent } = this.mindMap.opt
+    if (isUseCustomNodeContent && customCreateNodeContent) {
+      this._customNodeContent = customCreateNodeContent(this)
+    }
+    // 如果没有返回内容，那么还是使用内置的节点内容
+    if (this._customNodeContent) return
+    this._imgData = this.createImgNode()
+    this._iconData = this.createIconNode()
+    this._textData = this.createTextNode()
+    this._hyperlinkData = this.createHyperlinkNode()
+    this._tagData = this.createTagNode()
+    this._noteData = this.createNoteNode()
+  }
+
+  //  计算节点的宽高
+  getSize() {
+    this.updateGeneralization()
+    this.createNodeData()
+    let { width, height } = this.getNodeRect()
+    // 判断节点尺寸是否有变化
+    let changed = this.width !== width || this.height !== height
+    this.width = width
+    this.height = height
+    return changed
+  }
+
+  //  计算节点尺寸信息
+  getNodeRect() {
+    // 自定义节点内容
+    if (this.isUseCustomNodeContent()) {
+      let rect = this.measureCustomNodeContentSize(this._customNodeContent)
+      return {
+        width: rect.width,
+        height: rect.height
+      }
+    }
+    // 宽高
+    let imgContentWidth = 0
+    let imgContentHeight = 0
+    let textContentWidth = 0
+    let textContentHeight = 0
+    // 存在图片
+    if (this._imgData) {
+      this._rectInfo.imgContentWidth = imgContentWidth = this._imgData.width
+      this._rectInfo.imgContentHeight = imgContentHeight = this._imgData.height
+    }
+    // 图标
+    if (this._iconData.length > 0) {
+      textContentWidth += this._iconData.reduce((sum, cur) => {
+        textContentHeight = Math.max(textContentHeight, cur.height)
+        return (sum += cur.width + this.textContentItemMargin)
+      }, 0)
+    }
+    // 文字
+    if (this._textData) {
+      textContentWidth += this._textData.width
+      textContentHeight = Math.max(textContentHeight, this._textData.height)
+    }
+    // 超链接
+    if (this._hyperlinkData) {
+      textContentWidth += this._hyperlinkData.width
+      textContentHeight = Math.max(
+        textContentHeight,
+        this._hyperlinkData.height
+      )
+    }
+    // 标签
+    if (this._tagData.length > 0) {
+      textContentWidth += this._tagData.reduce((sum, cur) => {
+        textContentHeight = Math.max(textContentHeight, cur.height)
+        return (sum += cur.width + this.textContentItemMargin)
+      }, 0)
+    }
+    // 备注
+    if (this._noteData) {
+      textContentWidth += this._noteData.width
+      textContentHeight = Math.max(textContentHeight, this._noteData.height)
+    }
+    // 文字内容部分的尺寸
+    this._rectInfo.textContentWidth = textContentWidth
+    this._rectInfo.textContentHeight = textContentHeight
+    // 间距
+    let margin =
+      imgContentHeight > 0 && textContentHeight > 0
+        ? this.blockContentMargin
+        : 0
+    let { paddingX, paddingY } = this.getPaddingVale()
+    // 纯内容宽高
+    let _width = Math.max(imgContentWidth, textContentWidth)
+    let _height = imgContentHeight + textContentHeight
+    // 计算节点形状需要的附加内边距
+    let { paddingX: shapePaddingX, paddingY: shapePaddingY } =
+      this.shapeInstance.getShapePadding(_width, _height, paddingX, paddingY)
+    this.shapePadding.paddingX = shapePaddingX
+    this.shapePadding.paddingY = shapePaddingY
+    return {
+      width: _width + paddingX * 2 + shapePaddingX * 2,
+      height: _height + paddingY * 2 + margin + shapePaddingY * 2
+    }
+  }
+
+  //  定位节点内容
+  layout() {
+    // 清除之前的内容
+    this.group.clear()
+    let { width, height, textContentItemMargin } = this
+    let { paddingY } = this.getPaddingVale()
+    paddingY += this.shapePadding.paddingY
+    // 节点形状
+    this.shapeNode = this.shapeInstance.createShape()
+    this.group.add(this.shapeNode)
+    this.updateNodeShape()
+    // 渲染一个隐藏的矩形区域，用来触发展开收起按钮的显示
+    this.renderExpandBtnPlaceholderRect()
+    // 概要节点添加一个带所属节点id的类名
+    if (this.isGeneralization && this.generalizationBelongNode) {
+      this.group.addClass('generalization_' + this.generalizationBelongNode.uid)
+    }
+    // 如果存在自定义节点内容，那么使用自定义节点内容
+    if (this.isUseCustomNodeContent()) {
+      let foreignObject = new ForeignObject()
+      foreignObject.width(width)
+      foreignObject.height(height)
+      foreignObject.add(SVG(this._customNodeContent))
+      this.group.add(foreignObject)
+      return
+    }
+    // 图片节点
+    let imgHeight = 0
+    if (this._imgData) {
+      imgHeight = this._imgData.height
+      this.group.add(this._imgData.node)
+      this._imgData.node.cx(width / 2).y(paddingY)
+    }
+    // 内容节点
+    let textContentNested = new G()
+    let textContentOffsetX = 0
+    // icon
+    let iconNested = new G()
+    if (this._iconData && this._iconData.length > 0) {
+      let iconLeft = 0
+      this._iconData.forEach(item => {
+        item.node
+          .x(textContentOffsetX + iconLeft)
+          .y((this._rectInfo.textContentHeight - item.height) / 2)
+        iconNested.add(item.node)
+        iconLeft += item.width + textContentItemMargin
+      })
+      textContentNested.add(iconNested)
+      textContentOffsetX += iconLeft
+    }
+    // 文字
+    if (this._textData) {
+      this._textData.node.attr('data-offsetx', textContentOffsetX)
+      this._textData.node.x(textContentOffsetX).y(0)
+      textContentNested.add(this._textData.node)
+      textContentOffsetX += this._textData.width + textContentItemMargin
+    }
+    // 超链接
+    if (this._hyperlinkData) {
+      this._hyperlinkData.node
+        .x(textContentOffsetX)
+        .y((this._rectInfo.textContentHeight - this._hyperlinkData.height) / 2)
+      textContentNested.add(this._hyperlinkData.node)
+      textContentOffsetX += this._hyperlinkData.width + textContentItemMargin
+    }
+    // 标签
+    let tagNested = new G()
+    if (this._tagData && this._tagData.length > 0) {
+      let tagLeft = 0
+      this._tagData.forEach(item => {
+        item.node
+          .x(textContentOffsetX + tagLeft)
+          .y((this._rectInfo.textContentHeight - item.height) / 2)
+        tagNested.add(item.node)
+        tagLeft += item.width + textContentItemMargin
+      })
+      textContentNested.add(tagNested)
+      textContentOffsetX += tagLeft
+    }
+    // 备注
+    if (this._noteData) {
+      this._noteData.node
+        .x(textContentOffsetX)
+        .y((this._rectInfo.textContentHeight - this._noteData.height) / 2)
+      textContentNested.add(this._noteData.node)
+      textContentOffsetX += this._noteData.width
+    }
+    // 文字内容整体
+    textContentNested.translate(
+      width / 2 - textContentNested.bbox().width / 2,
+      imgHeight +
+        paddingY +
+        (imgHeight > 0 && this._rectInfo.textContentHeight > 0
+          ? this.blockContentMargin
+          : 0)
+    )
+    this.group.add(textContentNested)
+  }
+
+  // 渲染展开收起按钮的隐藏占位元素
+  renderExpandBtnPlaceholderRect() {
+    if (!this.mindMap.opt.alwaysShowExpandBtn) {
+      let { width, height } = this
+      if (!this._unVisibleRectRegionNode) {
+        this._unVisibleRectRegionNode = new Rect()
+        this._unVisibleRectRegionNode.fill({
+          color: 'transparent'
+        })
+      }
+      this.group.add(this._unVisibleRectRegionNode)
+      this.renderer.layout.renderExpandBtnRect(this._unVisibleRectRegionNode, this.expandBtnSize, width, height, this)
+    }
+  }
+
+  // 给节点绑定事件
+  bindGroupEvent() {
+    // 单击事件，选中节点
+    this.group.on('click', e => {
+      this.mindMap.emit('node_click', this, e)
+      if (this.isMultipleChoice) {
+        e.stopPropagation()
+        this.isMultipleChoice = false
+        return
+      }
+      this.active(e)
+    })
+    this.group.on('mousedown', e => {
+      if (this.isRoot && e.which === 3) {
+        e.stopPropagation()
+      }
+      if (!this.isRoot) {
+        e.stopPropagation()
+      }
+      // 多选和取消多选
+      if (e.ctrlKey && this.mindMap.opt.enableCtrlKeyNodeSelection) {
+        this.isMultipleChoice = true
+        let isActive = this.nodeData.data.isActive
+        if (!isActive)
+          this.mindMap.emit(
+            'before_node_active',
+            this,
+            this.renderer.activeNodeList
+          )
+        this.mindMap.execCommand('SET_NODE_ACTIVE', this, !isActive)
+        this.mindMap.renderer[isActive ? 'removeActiveNode' : 'addActiveNode'](
+          this
+        )
+        this.mindMap.emit(
+          'node_active',
+          isActive ? null : this,
+          this.mindMap.renderer.activeNodeList
+        )
+      }
+      this.mindMap.emit('node_mousedown', this, e)
+    })
+    this.group.on('mouseup', e => {
+      if (!this.isRoot) {
+        e.stopPropagation()
+      }
+      this.mindMap.emit('node_mouseup', this, e)
+    })
+    this.group.on('mouseenter', e => {
+      this._isMouseenter = true
+      // 显示展开收起按钮
+      this.showExpandBtn()
+      this.mindMap.emit('node_mouseenter', this, e)
+    })
+    this.group.on('mouseleave', e => {
+      this._isMouseenter = false
+      this.hideExpandBtn()
+      this.mindMap.emit('node_mouseleave', this, e)
+    })
+    // 双击事件
+    this.group.on('dblclick', e => {
+      if (this.mindMap.opt.readonly) {
+        return
+      }
+      e.stopPropagation()
+      this.mindMap.emit('node_dblclick', this, e)
+    })
+    // 右键菜单事件
+    this.group.on('contextmenu', e => {
+      // 按住ctrl键点击鼠标左键不知为何触发的是contextmenu事件
+      if (this.mindMap.opt.readonly || e.ctrlKey) {
+        // || this.isGeneralization
+        return
+      }
+      e.stopPropagation()
+      e.preventDefault()
+      if (this.nodeData.data.isActive) {
+        this.renderer.clearActive()
+      }
+      this.active(e)
+      this.mindMap.emit('node_contextmenu', e, this)
+    })
+  }
+
+  //  激活节点
+  active(e) {
+    if (this.mindMap.opt.readonly) {
+      return
+    }
+    e && e.stopPropagation()
+    if (this.nodeData.data.isActive) {
+      return
+    }
+    this.mindMap.emit('before_node_active', this, this.renderer.activeNodeList)
+    this.renderer.clearActive()
+    this.mindMap.execCommand('SET_NODE_ACTIVE', this, true)
+    this.renderer.addActiveNode(this)
+    this.mindMap.emit('node_active', this, this.renderer.activeNodeList)
+  }
+
+  //  更新节点
+  update(isLayout = false) {
+    if (!this.group) {
+      return
+    }
+    let {
+      alwaysShowExpandBtn
+    } = this.mindMap.opt
+    if (alwaysShowExpandBtn) {
+      // 需要移除展开收缩按钮
+      if (this._expandBtn && this.nodeData.children.length <= 0) {
+        this.removeExpandBtn()
+      } else {
+        // 更新展开收起按钮
+        this.renderExpandBtn()
+      }
+    } else {
+      let { isActive, expand } = this.nodeData.data
+      // 展开状态且非激活状态，且当前鼠标不在它上面，才隐藏
+      if (expand && !isActive && !this._isMouseenter) {
+        this.hideExpandBtn()
+      } else {
+        this.showExpandBtn()
+      }
+    }
+    // 更新概要
+    this.renderGeneralization()
+    // 更新节点位置
+    let t = this.group.transform()
+    // 如果节点位置没有变化，则返回
+    if (this.left === t.translateX && this.top === t.translateY) return
+    this.group.translate(this.left - t.translateX, this.top - t.translateY)
+  }
+
+  // 重新渲染节点，即重新创建节点内容、计算节点大小、计算节点内容布局、更新展开收起按钮，概要及位置
+  reRender() {
+    let sizeChange = this.getSize()
+    this.layout()
+    this.update()
+    return sizeChange
+  }
+
+  // 更新节点形状样式
+  updateNodeShape() {
+    if (!this.shapeNode) return
+    const shape = this.getShape()
+    this.style[shape === CONSTANTS.SHAPE.RECTANGLE ? 'rect' : 'shape'](
+      this.shapeNode
+    )
+  }
+
+  //  递归渲染
+  render(callback = () => {}) {
+    // 节点
+    // 重新渲染连线
+    this.renderLine()
+    let isLayout = false
+    if (!this.group) {
+      isLayout = true
+      // 创建组
+      this.group = new G()
+      this.group.css({
+        cursor: 'default'
+      })
+      this.bindGroupEvent()
+      this.draw.add(this.group)
+      this.layout()
+      this.update(isLayout)
+    } else {
+      this.draw.add(this.group)
+      if (this.needLayout) {
+        this.needLayout = false
+        this.layout()
+      }
+      if (this.needRerenderExpandBtnPlaceholderRect) {
+        this.needRerenderExpandBtnPlaceholderRect = false
+        this.renderExpandBtnPlaceholderRect()
+      }
+      this.update()
+    }
+    // 子节点
+    if (
+      this.children &&
+      this.children.length &&
+      this.nodeData.data.expand !== false
+    ) {
+      let index = 0
+      asyncRun(
+        this.children.map(item => {
+          return () => {
+            item.render(() => {
+              index++
+              if (index >= this.children.length) {
+                callback()
+              }
+            })
+          }
+        })
+      )
+    } else {
+      callback()
+    }
+    // 手动插入的节点立即获得焦点并且开启编辑模式
+    if (this.nodeData.inserting) {
+      delete this.nodeData.inserting
+      this.active()
+      setTimeout(() => {
+        this.mindMap.emit('node_dblclick', this, null, true)
+      }, 0)
+    }
+  }
+
+  //  递归删除，只是从画布删除，节点容器还在，后续还可以重新插回画布
+  remove() {
+    if (!this.group) return
+    this.group.remove()
+    this.removeGeneralization()
+    this.removeLine()
+    // 子节点
+    if (this.children && this.children.length) {
+      asyncRun(
+        this.children.map(item => {
+          return () => {
+            item.remove()
+          }
+        })
+      )
+    }
+  }
+
+  // 销毁节点，不但会从画布删除，而且原节点直接置空，后续无法再插回画布
+  destroy() {
+    if (!this.group) return
+    this.group.remove()
+    this.removeGeneralization()
+    this.removeLine()
+    this.group = null
+  }
+
+  //  隐藏节点
+  hide() {
+    this.group.hide()
+    this.hideGeneralization()
+    if (this.parent) {
+      let index = this.parent.children.indexOf(this)
+      this.parent._lines[index] && this.parent._lines[index].hide()
+      this._lines.forEach(item => {
+        item.hide()
+      })
+    }
+    // 子节点
+    if (this.children && this.children.length) {
+      asyncRun(
+        this.children.map(item => {
+          return () => {
+            item.hide()
+          }
+        })
+      )
+    }
+  }
+
+  //  显示节点
+  show() {
+    if (!this.group) {
+      return
+    }
+    this.group.show()
+    this.showGeneralization()
+    if (this.parent) {
+      let index = this.parent.children.indexOf(this)
+      this.parent._lines[index] && this.parent._lines[index].show()
+      this._lines.forEach(item => {
+        item.show()
+      })
+    }
+    // 子节点
+    if (this.children && this.children.length) {
+      asyncRun(
+        this.children.map(item => {
+          return () => {
+            item.show()
+          }
+        })
+      )
+    }
+  }
+
+  //  连线
+  renderLine(deep = false) {
+    if (this.nodeData.data.expand === false) {
+      return
+    }
+    let childrenLen = this.nodeData.children.length
+    // 切换为鱼骨结构时，清空根节点和二级节点的连线
+    if (
+      this.mindMap.opt.layout === CONSTANTS.LAYOUT.FISHBONE &&
+      (this.isRoot || this.layerIndex === 1)
+    ) {
+      childrenLen = 0
+    }
+    if (childrenLen > this._lines.length) {
+      // 创建缺少的线
+      new Array(childrenLen - this._lines.length).fill(0).forEach(() => {
+        this._lines.push(this.draw.path())
+      })
+    } else if (childrenLen < this._lines.length) {
+      // 删除多余的线
+      this._lines.slice(childrenLen).forEach(line => {
+        line.remove()
+      })
+      this._lines = this._lines.slice(0, childrenLen)
+    }
+    // 画线
+    this.renderer.layout.renderLine(
+      this,
+      this._lines,
+      (line, node) => {
+        // 添加样式
+        this.styleLine(line, node)
+      },
+      this.style.getStyle('lineStyle', true)
+    )
+    // 子级的连线也需要更新
+    if (deep && this.children && this.children.length > 0) {
+      this.children.forEach(item => {
+        item.renderLine(deep)
+      })
+    }
+  }
+
+  //  获取节点形状
+  getShape() {
+    // 节点使用功能横线风格的话不支持设置形状，直接使用默认的矩形
+    return this.mindMap.themeConfig.nodeUseLineStyle
+      ? CONSTANTS.SHAPE.RECTANGLE
+      : this.style.getStyle('shape', false, false)
+  }
+
+  //  检查节点是否存在自定义数据
+  hasCustomPosition() {
+    return this.customLeft !== undefined && this.customTop !== undefined
+  }
+
+  //  检查节点是否存在自定义位置的祖先节点
+  ancestorHasCustomPosition() {
+    let node = this
+    while (node) {
+      if (node.hasCustomPosition()) {
+        return true
+      }
+      node = node.parent
+    }
+    return false
+  }
+
+  //  添加子节点
+  addChildren(node) {
+    this.children.push(node)
+  }
+
+  //  设置连线样式
+  styleLine(line, node) {
+    let width =
+      node.getSelfInhertStyle('lineWidth') || node.getStyle('lineWidth', true)
+    let color =
+      node.getSelfInhertStyle('lineColor') || node.getStyle('lineColor', true)
+    let dasharray =
+      node.getSelfInhertStyle('lineDasharray') ||
+      node.getStyle('lineDasharray', true)
+    this.style.line(line, {
+      width,
+      color,
+      dasharray
+    })
+  }
+
+  //  移除连线
+  removeLine() {
+    this._lines.forEach(line => {
+      line.remove()
+    })
+    this._lines = []
+  }
+
+  //  检测当前节点是否是某个节点的祖先节点
+  isParent(node) {
+    if (this === node) {
+      return false
+    }
+    let parent = node.parent
+    while (parent) {
+      if (this === parent) {
+        return true
+      }
+      parent = parent.parent
+    }
+    return false
+  }
+
+  //  检测当前节点是否是某个节点的兄弟节点
+  isBrother(node) {
+    if (!this.parent || this === node) {
+      return false
+    }
+    return this.parent.children.find(item => {
+      return item === node
+    })
+  }
+
+  //  获取padding值
+  getPaddingVale() {
+    let { isActive } = this.nodeData.data
+    return {
+      paddingX: this.getStyle('paddingX', true, isActive),
+      paddingY: this.getStyle('paddingY', true, isActive)
+    }
+  }
+
+  //  获取某个样式
+  getStyle(prop, root, isActive) {
+    let v = this.style.merge(prop, root, isActive)
+    return v === undefined ? '' : v
+  }
+
+  //  获取自定义样式
+  getSelfStyle(prop) {
+    return this.style.getSelfStyle(prop)
+  }
+
+  //   获取最近一个存在自身自定义样式的祖先节点的自定义样式
+  getParentSelfStyle(prop) {
+    if (this.parent) {
+      return (
+        this.parent.getSelfStyle(prop) || this.parent.getParentSelfStyle(prop)
+      )
+    }
+    return null
+  }
+
+  //  获取自身可继承的自定义样式
+  getSelfInhertStyle(prop) {
+    return (
+      this.getSelfStyle(prop) || // 自身
+      this.getParentSelfStyle(prop)
+    ) // 父级
+  }
+
+  //  获取数据
+  getData(key) {
+    return key ? this.nodeData.data[key] || '' : this.nodeData.data
+  }
+
+  // 是否存在自定义样式
+  hasCustomStyle() {
+    return this.style.hasCustomStyle()
+  }
+}
+
+export default Node

simple-mind-map/src/core/render/node/Shape.js

@@ -0,0 +1,229 @@
+import { Rect, Polygon, Path } from '@svgdotjs/svg.js'
+import { CONSTANTS } from '../../../constants/constant'
+
+//  节点形状类
+export default class Shape {
+  constructor(node) {
+    this.node = node
+  }
+
+  //  形状需要的padding
+  getShapePadding(width, height, paddingX, paddingY) {
+    const shape = this.node.getShape()
+    const defaultPaddingX = 15
+    const defaultPaddingY = 5
+    const actWidth = width + paddingX * 2
+    const actHeight = height + paddingY * 2
+    const actOffset = Math.abs(actWidth - actHeight)
+    switch (shape) {
+      case CONSTANTS.SHAPE.ROUNDED_RECTANGLE:
+        return {
+          paddingX: height > width ? (height - width) / 2 : 0,
+          paddingY: 0
+        }
+      case CONSTANTS.SHAPE.DIAMOND:
+        return {
+          paddingX: width / 2,
+          paddingY: height / 2
+        }
+      case CONSTANTS.SHAPE.PARALLELOGRAM:
+        return {
+          paddingX: paddingX <= 0 ? defaultPaddingX : 0,
+          paddingY: 0
+        }
+      case CONSTANTS.SHAPE.OUTER_TRIANGULAR_RECTANGLE:
+        return {
+          paddingX: paddingX <= 0 ? defaultPaddingX : 0,
+          paddingY: 0
+        }
+      case CONSTANTS.SHAPE.INNER_TRIANGULAR_RECTANGLE:
+        return {
+          paddingX: paddingX <= 0 ? defaultPaddingX : 0,
+          paddingY: 0
+        }
+      case CONSTANTS.SHAPE.ELLIPSE:
+        return {
+          paddingX: paddingX <= 0 ? defaultPaddingX : 0,
+          paddingY: paddingY <= 0 ? defaultPaddingY : 0
+        }
+      case CONSTANTS.SHAPE.CIRCLE:
+        return {
+          paddingX: actHeight > actWidth ? actOffset / 2 : 0,
+          paddingY: actHeight < actWidth ? actOffset / 2 : 0
+        }
+      default:
+        return {
+          paddingX: 0,
+          paddingY: 0
+        }
+    }
+  }
+
+  //  创建形状节点
+  createShape() {
+    const shape = this.node.getShape()
+    let { width, height } = this.node
+    let node = null
+    // 矩形
+    if (shape === CONSTANTS.SHAPE.RECTANGLE) {
+      node = new Rect().size(width, height)
+    } else if (shape === CONSTANTS.SHAPE.DIAMOND) {
+      // 菱形
+      node = this.createDiamond()
+    } else if (shape === CONSTANTS.SHAPE.PARALLELOGRAM) {
+      // 平行四边形
+      node = this.createParallelogram()
+    } else if (shape === CONSTANTS.SHAPE.ROUNDED_RECTANGLE) {
+      // 圆角矩形
+      node = this.createRoundedRectangle()
+    } else if (shape === CONSTANTS.SHAPE.OCTAGONAL_RECTANGLE) {
+      // 八角矩形
+      node = this.createOctagonalRectangle()
+    } else if (shape === CONSTANTS.SHAPE.OUTER_TRIANGULAR_RECTANGLE) {
+      // 外三角矩形
+      node = this.createOuterTriangularRectangle()
+    } else if (shape === CONSTANTS.SHAPE.INNER_TRIANGULAR_RECTANGLE) {
+      // 内三角矩形
+      node = this.createInnerTriangularRectangle()
+    } else if (shape === CONSTANTS.SHAPE.ELLIPSE) {
+      // 椭圆
+      node = this.createEllipse()
+    } else if (shape === CONSTANTS.SHAPE.CIRCLE) {
+      // 圆
+      node = this.createCircle()
+    }
+    return node
+  }
+
+  //  创建菱形
+  createDiamond() {
+    let { width, height } = this.node
+    let halfWidth = width / 2
+    let halfHeight = height / 2
+    let topX = halfWidth
+    let topY = 0
+    let rightX = width
+    let rightY = halfHeight
+    let bottomX = halfWidth
+    let bottomY = height
+    let leftX = 0
+    let leftY = halfHeight
+    return new Polygon().plot([
+      [topX, topY],
+      [rightX, rightY],
+      [bottomX, bottomY],
+      [leftX, leftY]
+    ])
+  }
+
+  //  创建平行四边形
+  createParallelogram() {
+    let { paddingX } = this.node.getPaddingVale()
+    paddingX = paddingX || this.node.shapePadding.paddingX
+    let { width, height } = this.node
+    return new Polygon().plot([
+      [paddingX, 0],
+      [width, 0],
+      [width - paddingX, height],
+      [0, height]
+    ])
+  }
+
+  //  创建圆角矩形
+  createRoundedRectangle() {
+    let { width, height } = this.node
+    let halfHeight = height / 2
+    return new Path().plot(`
+      M${halfHeight},0
+      L${width - halfHeight},0
+      A${height / 2},${height / 2} 0 0,1 ${width - halfHeight},${height} 
+      L${halfHeight},${height}
+      A${height / 2},${height / 2} 0 0,1 ${halfHeight},${0}
+    `)
+  }
+
+  //  创建八角矩形
+  createOctagonalRectangle() {
+    let w = 5
+    let { width, height } = this.node
+    return new Polygon().plot([
+      [0, w],
+      [w, 0],
+      [width - w, 0],
+      [width, w],
+      [width, height - w],
+      [width - w, height],
+      [w, height],
+      [0, height - w]
+    ])
+  }
+
+  //  创建外三角矩形
+  createOuterTriangularRectangle() {
+    let { paddingX } = this.node.getPaddingVale()
+    paddingX = paddingX || this.node.shapePadding.paddingX
+    let { width, height } = this.node
+    return new Polygon().plot([
+      [paddingX, 0],
+      [width - paddingX, 0],
+      [width, height / 2],
+      [width - paddingX, height],
+      [paddingX, height],
+      [0, height / 2]
+    ])
+  }
+
+  //  创建内三角矩形
+  createInnerTriangularRectangle() {
+    let { paddingX } = this.node.getPaddingVale()
+    paddingX = paddingX || this.node.shapePadding.paddingX
+    let { width, height } = this.node
+    return new Polygon().plot([
+      [0, 0],
+      [width, 0],
+      [width - paddingX / 2, height / 2],
+      [width, height],
+      [0, height],
+      [paddingX / 2, height / 2]
+    ])
+  }
+
+  //  创建椭圆
+  createEllipse() {
+    let { width, height } = this.node
+    let halfWidth = width / 2
+    let halfHeight = height / 2
+    return new Path().plot(`
+      M${halfWidth},0
+      A${halfWidth},${halfHeight} 0 0,1 ${halfWidth},${height} 
+      M${halfWidth},${height} 
+      A${halfWidth},${halfHeight} 0 0,1 ${halfWidth},${0} 
+    `)
+  }
+
+  //  创建圆
+  createCircle() {
+    let { width, height } = this.node
+    let halfWidth = width / 2
+    let halfHeight = height / 2
+    return new Path().plot(`
+      M${halfWidth},0
+      A${halfWidth},${halfHeight} 0 0,1 ${halfWidth},${height} 
+      M${halfWidth},${height} 
+      A${halfWidth},${halfHeight} 0 0,1 ${halfWidth},${0} 
+    `)
+  }
+}
+
+// 形状列表
+export const shapeList = [
+  CONSTANTS.SHAPE.RECTANGLE,
+  CONSTANTS.SHAPE.DIAMOND,
+  CONSTANTS.SHAPE.PARALLELOGRAM,
+  CONSTANTS.SHAPE.ROUNDED_RECTANGLE,
+  CONSTANTS.SHAPE.OCTAGONAL_RECTANGLE,
+  CONSTANTS.SHAPE.OUTER_TRIANGULAR_RECTANGLE,
+  CONSTANTS.SHAPE.INNER_TRIANGULAR_RECTANGLE,
+  CONSTANTS.SHAPE.ELLIPSE,
+  CONSTANTS.SHAPE.CIRCLE
+]

simple-mind-map/src/core/render/node/Style.js

@@ -0,0 +1,227 @@
+import { tagColorList, nodeDataNoStylePropList } from '../../../constants/constant'
+const rootProp = ['paddingX', 'paddingY']
+const backgroundStyleProps = ['backgroundColor', 'backgroundImage', 'backgroundRepeat', 'backgroundPosition', 'backgroundSize']
+
+//  样式类
+class Style {
+  //   设置背景样式
+  static setBackgroundStyle(el, themeConfig) {
+    // 缓存容器元素原本的样式
+    if (!Style.cacheStyle) {
+      Style.cacheStyle = {}
+      let style = window.getComputedStyle(el)
+      backgroundStyleProps.forEach((prop) => {
+        Style.cacheStyle[prop] = style[prop]
+      })
+    }
+    // 设置新样式
+    let { backgroundColor, backgroundImage, backgroundRepeat, backgroundPosition, backgroundSize } = themeConfig
+    el.style.backgroundColor = backgroundColor
+    if (backgroundImage) {
+      el.style.backgroundImage = `url(${backgroundImage})`
+      el.style.backgroundRepeat = backgroundRepeat
+      el.style.backgroundPosition = backgroundPosition
+      el.style.backgroundSize = backgroundSize
+    } else {
+      el.style.backgroundImage = 'none'
+    }
+  }
+
+  // 移除背景样式
+  static removeBackgroundStyle(el) {
+    if (!Style.cacheStyle) return
+    backgroundStyleProps.forEach((prop) => {
+      el.style[prop] = Style.cacheStyle[prop]
+    })
+    Style.cacheStyle = null
+  }
+
+  //  构造函数
+  constructor(ctx) {
+    this.ctx = ctx
+  }
+
+  //  合并样式
+  merge(prop, root, isActive) {
+    let themeConfig = this.ctx.mindMap.themeConfig
+    // 三级及以下节点
+    let defaultConfig = themeConfig.node
+    if (root || rootProp.includes(prop)) {
+      // 直接使用最外层样式
+      defaultConfig = themeConfig
+    } else if (this.ctx.isGeneralization) {
+      // 概要节点
+      defaultConfig = themeConfig.generalization
+    } else if (this.ctx.layerIndex === 0) {
+      // 根节点
+      defaultConfig = themeConfig.root
+    } else if (this.ctx.layerIndex === 1) {
+      // 二级节点
+      defaultConfig = themeConfig.second
+    }
+    // 激活状态
+    if (isActive !== undefined ? isActive : this.ctx.nodeData.data.isActive) {
+      if (
+        this.ctx.nodeData.data.activeStyle &&
+        this.ctx.nodeData.data.activeStyle[prop] !== undefined
+      ) {
+        return this.ctx.nodeData.data.activeStyle[prop]
+      } else if (defaultConfig.active && defaultConfig.active[prop]) {
+        return defaultConfig.active[prop]
+      }
+    }
+    // 优先使用节点本身的样式
+    return this.getSelfStyle(prop) !== undefined
+      ? this.getSelfStyle(prop)
+      : defaultConfig[prop]
+  }
+
+  //  获取某个样式值
+  getStyle(prop, root, isActive) {
+    return this.merge(prop, root, isActive)
+  }
+
+  //  获取自身自定义样式
+  getSelfStyle(prop) {
+    return this.ctx.nodeData.data[prop]
+  }
+
+  //  矩形
+  rect(node) {
+    this.shape(node)
+    node.radius(this.merge('borderRadius'))
+  }
+
+  //   矩形外的其他形状
+  shape(node) {
+    node.fill({
+      color: this.merge('fillColor')
+    })
+    // 节点使用横线样式，不需要渲染非激活状态的边框样式
+    // if (
+    //   !this.ctx.isRoot &&
+    //   !this.ctx.isGeneralization &&
+    //   this.ctx.mindMap.themeConfig.nodeUseLineStyle &&
+    //   !this.ctx.nodeData.data.isActive
+    // ) {
+    //   return
+    // }
+    node.stroke({
+      color: this.merge('borderColor'),
+      width: this.merge('borderWidth'),
+      dasharray: this.merge('borderDasharray')
+    })
+  }
+
+  //  文字
+  text(node) {
+    node
+      .fill({
+        color: this.merge('color')
+      })
+      .css({
+        'font-family': this.merge('fontFamily'),
+        'font-size': this.merge('fontSize'),
+        'font-weight': this.merge('fontWeight'),
+        'font-style': this.merge('fontStyle'),
+        'text-decoration': this.merge('textDecoration')
+      })
+  }
+
+  // 生成内联样式
+  createStyleText() {
+    return `
+      color: ${this.merge('color')};
+      font-family: ${this.merge('fontFamily')};
+      font-size: ${this.merge('fontSize') + 'px'};
+      font-weight: ${this.merge('fontWeight')};
+      font-style: ${this.merge('fontStyle')};
+      text-decoration: ${this.merge('textDecoration')}
+    `
+  }
+
+  // 获取文本样式
+  getTextFontStyle() {
+    return { 
+      italic: this.merge('fontStyle') === 'italic', 
+      bold: this.merge('fontWeight'), 
+      fontSize: this.merge('fontSize'), 
+      fontFamily: this.merge('fontFamily')
+    }
+  }
+
+  //  html文字节点
+  domText(node, fontSizeScale = 1, isMultiLine) {
+    node.style.fontFamily = this.merge('fontFamily')
+    node.style.fontSize = this.merge('fontSize') * fontSizeScale + 'px'
+    node.style.fontWeight = this.merge('fontWeight') || 'normal'
+    node.style.lineHeight = !isMultiLine ? 'normal' : this.merge('lineHeight')
+    node.style.fontStyle = this.merge('fontStyle')
+  }
+
+  //  标签文字
+  tagText(node, index) {
+    node
+      .fill({
+        color: tagColorList[index].color
+      })
+      .css({
+        'font-size': '12px'
+      })
+  }
+
+  //  标签矩形
+  tagRect(node, index) {
+    node.fill({
+      color: tagColorList[index].background
+    })
+  }
+
+  //  内置图标
+  iconNode(node) {
+    node.attr({
+      fill: this.merge('color')
+    })
+  }
+
+  //  连线
+  line(node, { width, color, dasharray } = {}) {
+    node.stroke({ width, color, dasharray }).fill({ color: 'none' })
+  }
+
+  //  概要连线
+  generalizationLine(node) {
+    node
+      .stroke({
+        width: this.merge('generalizationLineWidth', true),
+        color: this.merge('generalizationLineColor', true)
+      })
+      .fill({ color: 'none' })
+  }
+
+  //  展开收起按钮
+  iconBtn(node, node2, fillNode) {
+    let { color, fill } = this.ctx.mindMap.opt.expandBtnStyle || {
+      color: '#808080',
+      fill: '#fff'
+    }
+    node.fill({ color: color })
+    node2.fill({ color: color })
+    fillNode.fill({ color: fill })
+  }
+
+  // 是否设置了自定义的样式
+  hasCustomStyle() {
+    let res = false
+    Object.keys(this.ctx.nodeData.data).forEach((item) => {
+      if (!nodeDataNoStylePropList.includes(item)) {
+        res = true
+      }
+    })
+    return res
+  }
+}
+
+Style.cacheStyle = null
+
+export default Style

simple-mind-map/src/core/render/node/nodeCommandWraps.js

@@ -0,0 +1,56 @@
+//  设置数据
+function setData(data = {}) {
+  this.mindMap.execCommand('SET_NODE_DATA', this, data)
+}
+
+//  设置文本
+function setText(text, richText) {
+  this.mindMap.execCommand('SET_NODE_TEXT', this, text, richText)
+}
+
+//  设置图片
+function setImage(imgData) {
+  this.mindMap.execCommand('SET_NODE_IMAGE', this, imgData)
+}
+
+//  设置图标
+function setIcon(icons) {
+  this.mindMap.execCommand('SET_NODE_ICON', this, icons)
+}
+
+//  设置超链接
+function setHyperlink(link, title) {
+  this.mindMap.execCommand('SET_NODE_HYPERLINK', this, link, title)
+}
+
+//  设置备注
+function setNote(note) {
+  this.mindMap.execCommand('SET_NODE_NOTE', this, note)
+}
+
+//  设置标签
+function setTag(tag) {
+  this.mindMap.execCommand('SET_NODE_TAG', this, tag)
+}
+
+//  设置形状
+function setShape(shape) {
+  this.mindMap.execCommand('SET_NODE_SHAPE', this, shape)
+}
+
+//  修改某个样式
+function setStyle(prop, value, isActive) {
+  this.mindMap.execCommand('SET_NODE_STYLE', this, prop, value, isActive)
+}
+
+export default {
+  setData,
+  setText,
+  setImage,
+  setIcon,
+  setHyperlink,
+  setNote,
+  setTag,
+  setShape,
+  setStyle
+}

simple-mind-map/src/core/render/node/nodeCreateContents.js

@@ -0,0 +1,331 @@
+import { measureText, resizeImgSize, getTextFromHtml } from '../../../utils'
+import { Image, SVG, A, G, Rect, Text, ForeignObject } from '@svgdotjs/svg.js'
+import iconsSvg from '../../../svg/icons'
+import { CONSTANTS, commonCaches } from '../../../constants/constant'
+
+//  创建图片节点
+function createImgNode() {
+  let img = this.nodeData.data.image
+  if (!img) {
+    return
+  }
+  let imgSize = this.getImgShowSize()
+  let node = new Image().load(img).size(...imgSize)
+  if (this.nodeData.data.imageTitle) {
+    node.attr('title', this.nodeData.data.imageTitle)
+  }
+  node.on('dblclick', e => {
+    this.mindMap.emit('node_img_dblclick', this, e)
+  })
+  node.on('mouseenter', e => {
+    this.mindMap.emit('node_img_mouseenter', this, node, e)
+  })
+  node.on('mouseleave', e => {
+    this.mindMap.emit('node_img_mouseleave', this, node, e)
+  })
+  node.on('mousemove', e => {
+    this.mindMap.emit('node_img_mousemove', this, node, e)
+  })
+  return {
+    node,
+    width: imgSize[0],
+    height: imgSize[1]
+  }
+}
+
+//  获取图片显示宽高
+function getImgShowSize() {
+  const { custom, width, height } = this.nodeData.data.imageSize
+  // 如果是自定义了图片的宽高，那么不受最大宽高限制
+  if (custom) return [width, height]
+  return resizeImgSize(
+    width,
+    height,
+    this.mindMap.themeConfig.imgMaxWidth,
+    this.mindMap.themeConfig.imgMaxHeight
+  )
+}
+
+//  创建icon节点
+function createIconNode() {
+  let _data = this.nodeData.data
+  if (!_data.icon || _data.icon.length <= 0) {
+    return []
+  }
+  let iconSize = this.mindMap.themeConfig.iconSize
+  return _data.icon.map(item => {
+    let src = iconsSvg.getNodeIconListIcon(item, this.mindMap.opt.iconList || [])
+    let node = null
+    // svg图标
+    if (/^<svg/.test(src)) {
+      node = SVG(src)
+    } else {
+      // 图片图标
+      node = new Image().load(src)
+    }
+    node.size(iconSize, iconSize)
+    return {
+      node,
+      width: iconSize,
+      height: iconSize
+    }
+  })
+}
+
+// 创建富文本节点
+function createRichTextNode() {
+  let g = new G()
+  // 重新设置富文本节点内容
+  let recoverText = false
+  if (this.nodeData.data.resetRichText) {
+    delete this.nodeData.data.resetRichText
+    recoverText = true
+  }
+  if ([CONSTANTS.CHANGE_THEME].includes(this.mindMap.renderer.renderSource)) {
+    // 如果自定义过样式则不允许覆盖
+    if (!this.hasCustomStyle()) {
+      recoverText = true
+    }
+  }
+  if (recoverText) {
+    let text = getTextFromHtml(this.nodeData.data.text)
+    this.nodeData.data.text = `<p><span style="${this.style.createStyleText()}">${text}</span></p>`
+  }
+  let html = `<div>${this.nodeData.data.text}</div>`
+  let div = document.createElement('div')
+  div.innerHTML = html
+  div.style.cssText = `position: fixed; left: -999999px;`
+  let el = div.children[0]
+  el.classList.add('smm-richtext-node-wrap')
+  el.setAttribute('xmlns', 'http://www.w3.org/1999/xhtml')
+  el.style.maxWidth = this.mindMap.opt.textAutoWrapWidth + 'px'
+  this.mindMap.el.appendChild(div)
+  let { width, height } = el.getBoundingClientRect()
+  width = Math.ceil(width) + 1// 修复getBoundingClientRect方法对实际宽度是小数的元素获取到的值是整数，导致宽度不够文本发生换行的问题
+  height = Math.ceil(height)
+  g.attr('data-width', width)
+  g.attr('data-height', height)
+  html = div.innerHTML
+  this.mindMap.el.removeChild(div)
+  let foreignObject = new ForeignObject()
+  foreignObject.width(width)
+  foreignObject.height(height)
+  foreignObject.add(SVG(html))
+  g.add(foreignObject)
+  return {
+    node: g,
+    width,
+    height
+  }
+}
+
+//  创建文本节点
+function createTextNode() {
+  if (this.nodeData.data.richText) {
+    return this.createRichTextNode()
+  }
+  let g = new G()
+  let fontSize = this.getStyle('fontSize', false, this.nodeData.data.isActive)
+  let lineHeight = this.getStyle(
+    'lineHeight',
+    false,
+    this.nodeData.data.isActive
+  )
+  // 文本超长自动换行
+  let textStyle = this.style.getTextFontStyle()
+  let textArr = this.nodeData.data.text.split(/\n/gim)
+  let maxWidth = this.mindMap.opt.textAutoWrapWidth
+  let isMultiLine = false
+  textArr.forEach((item, index) => {
+    let arr = item.split('')
+    let lines = []
+    let line = []
+    while (arr.length) {
+      let str = arr.shift()
+      let text = [...line, str].join('')
+      if (measureText(text, textStyle).width <= maxWidth) {
+        line.push(str)
+      } else {
+        lines.push(line.join(''))
+        line = [str]
+      }
+    }
+    if (line.length > 0) {
+      lines.push(line.join(''))
+    }
+    if (lines.length > 1) {
+      isMultiLine = true
+    }
+    textArr[index] = lines.join('\n')
+  })
+  textArr = textArr.join('\n').split(/\n/gim)
+  textArr.forEach((item, index) => {
+    let node = new Text().text(item)
+    this.style.text(node)
+    node.y(fontSize * lineHeight * index)
+    g.add(node)
+  })
+  let { width, height } = g.bbox()
+  width = Math.ceil(width)
+  height = Math.ceil(height)
+  g.attr('data-width', width)
+  g.attr('data-height', height)
+  g.attr('data-ismultiLine', isMultiLine || textArr.length > 1)
+  return {
+    node: g,
+    width,
+    height
+  }
+}
+
+//  创建超链接节点
+function createHyperlinkNode() {
+  let { hyperlink, hyperlinkTitle } = this.nodeData.data
+  if (!hyperlink) {
+    return
+  }
+  let iconSize = this.mindMap.themeConfig.iconSize
+  let node = new SVG()
+  // 超链接节点
+  let a = new A().to(hyperlink).target('_blank')
+  a.node.addEventListener('click', e => {
+    e.stopPropagation()
+  })
+  if (hyperlinkTitle) {
+    a.attr('title', hyperlinkTitle)
+  }
+  // 添加一个透明的层，作为鼠标区域
+  a.rect(iconSize, iconSize).fill({ color: 'transparent' })
+  // 超链接图标
+  let iconNode = SVG(iconsSvg.hyperlink).size(iconSize, iconSize)
+  this.style.iconNode(iconNode)
+  a.add(iconNode)
+  node.add(a)
+  return {
+    node,
+    width: iconSize,
+    height: iconSize
+  }
+}
+
+//  创建标签节点
+function createTagNode() {
+  let tagData = this.nodeData.data.tag
+  if (!tagData || tagData.length <= 0) {
+    return []
+  }
+  let nodes = []
+  tagData.slice(0, this.mindMap.opt.maxTag).forEach((item, index) => {
+    let tag = new G()
+    // 标签文本
+    let text = new Text().text(item).x(8).cy(10)
+    this.style.tagText(text, index)
+    let { width } = text.bbox()
+    // 标签矩形
+    let rect = new Rect().size(width + 16, 20)
+    this.style.tagRect(rect, index)
+    tag.add(rect).add(text)
+    nodes.push({
+      node: tag,
+      width: width + 16,
+      height: 20
+    })
+  })
+  return nodes
+}
+
+//  创建备注节点
+function createNoteNode() {
+  if (!this.nodeData.data.note) {
+    return null
+  }
+  let iconSize = this.mindMap.themeConfig.iconSize
+  let node = new SVG().attr('cursor', 'pointer')
+  // 透明的层，用来作为鼠标区域
+  node.add(new Rect().size(iconSize, iconSize).fill({ color: 'transparent' }))
+  // 备注图标
+  let iconNode = SVG(iconsSvg.note).size(iconSize, iconSize)
+  this.style.iconNode(iconNode)
+  node.add(iconNode)
+  // 备注tooltip
+  if (!this.mindMap.opt.customNoteContentShow) {
+    if (!this.noteEl) {
+      this.noteEl = document.createElement('div')
+      this.noteEl.style.cssText = `
+          position: absolute;
+          padding: 10px;
+          border-radius: 5px;
+          box-shadow: 0 2px 5px rgb(0 0 0 / 10%);
+          display: none;
+          background-color: #fff;
+          z-index: ${ this.mindMap.opt.nodeNoteTooltipZIndex }
+      `
+      document.body.appendChild(this.noteEl)
+    }
+    this.noteEl.innerText = this.nodeData.data.note
+  }
+  node.on('mouseover', () => {
+    let { left, top } = node.node.getBoundingClientRect()
+    if (!this.mindMap.opt.customNoteContentShow) {
+      this.noteEl.style.left = left + 'px'
+      this.noteEl.style.top = top + iconSize + 'px'
+      this.noteEl.style.display = 'block'
+    } else {
+      this.mindMap.opt.customNoteContentShow.show(
+        this.nodeData.data.note,
+        left,
+        top + iconSize
+      )
+    }
+  })
+  node.on('mouseout', () => {
+    if (!this.mindMap.opt.customNoteContentShow) {
+      this.noteEl.style.display = 'none'
+    } else {
+      this.mindMap.opt.customNoteContentShow.hide()
+    }
+  })
+  return {
+    node,
+    width: iconSize,
+    height: iconSize
+  }
+}
+
+// 测量自定义节点内容元素的宽高
+function measureCustomNodeContentSize (content) {
+  if (!commonCaches.measureCustomNodeContentSizeEl) {
+    commonCaches.measureCustomNodeContentSizeEl = document.createElement('div')
+    commonCaches.measureCustomNodeContentSizeEl.style.cssText = `
+      position: fixed;
+      left: -99999px;
+      top: -99999px;
+    `
+    this.mindMap.el.appendChild(commonCaches.measureCustomNodeContentSizeEl)
+  }
+  commonCaches.measureCustomNodeContentSizeEl.innerHTML = ''
+  commonCaches.measureCustomNodeContentSizeEl.appendChild(content)
+  let rect = commonCaches.measureCustomNodeContentSizeEl.getBoundingClientRect()
+  return {
+    width: rect.width,
+    height: rect.height
+  }
+}
+
+// 是否使用的是自定义节点内容
+function isUseCustomNodeContent()  {
+  return !!this._customNodeContent
+}
+
+export default {
+    createImgNode,
+    getImgShowSize,
+    createIconNode,
+    createRichTextNode,
+    createTextNode,
+    createHyperlinkNode,
+    createTagNode,
+    createNoteNode,
+    measureCustomNodeContentSize,
+    isUseCustomNodeContent
+}

simple-mind-map/src/core/render/node/nodeExpandBtn.js

@@ -0,0 +1,142 @@
+import btnsSvg from '../../../svg/btns'
+import { SVG, Circle, G } from '@svgdotjs/svg.js'
+
+// 创建展开收起按钮的内容节点
+function createExpandNodeContent() {
+  if (this._openExpandNode) {
+    return
+  }
+  let { open, close } = this.mindMap.opt.expandBtnIcon || {}
+  // 展开的节点
+  this._openExpandNode = SVG(open || btnsSvg.open).size(
+    this.expandBtnSize,
+    this.expandBtnSize
+  )
+  this._openExpandNode.x(0).y(-this.expandBtnSize / 2)
+  // 收起的节点
+  this._closeExpandNode = SVG(close || btnsSvg.close).size(
+    this.expandBtnSize,
+    this.expandBtnSize
+  )
+  this._closeExpandNode.x(0).y(-this.expandBtnSize / 2)
+  // 填充节点
+  this._fillExpandNode = new Circle().size(this.expandBtnSize)
+  this._fillExpandNode.x(0).y(-this.expandBtnSize / 2)
+  // 设置样式
+  this.style.iconBtn(
+    this._openExpandNode,
+    this._closeExpandNode,
+    this._fillExpandNode
+  )
+}
+
+//  创建或更新展开收缩按钮内容
+function updateExpandBtnNode() {
+  let { expand } = this.nodeData.data
+  // 如果本次和上次的展开状态一样则返回
+  if (expand === this._lastExpandBtnType) return
+  if (this._expandBtn) {
+    this._expandBtn.clear()
+  }
+  this.createExpandNodeContent()
+  let node
+  if (expand === false) {
+    node = this._openExpandNode
+    this._lastExpandBtnType = false
+  } else {
+    node = this._closeExpandNode
+    this._lastExpandBtnType = true
+  }
+  if (this._expandBtn) this._expandBtn.add(this._fillExpandNode).add(node)
+}
+
+//  更新展开收缩按钮位置
+function updateExpandBtnPos() {
+  if (!this._expandBtn) {
+    return
+  }
+  this.renderer.layout.renderExpandBtn(this, this._expandBtn)
+}
+
+//  创建展开收缩按钮
+function renderExpandBtn() {
+  if (
+    !this.nodeData.children ||
+    this.nodeData.children.length <= 0 ||
+    this.isRoot
+  ) {
+    return
+  }
+  if (this._expandBtn) {
+    this.group.add(this._expandBtn)
+  } else {
+    this._expandBtn = new G()
+    this._expandBtn.on('mouseover', e => {
+      e.stopPropagation()
+      this._expandBtn.css({
+        cursor: 'pointer'
+      })
+    })
+    this._expandBtn.on('mouseout', e => {
+      e.stopPropagation()
+      this._expandBtn.css({
+        cursor: 'auto'
+      })
+    })
+    this._expandBtn.on('click', e => {
+      e.stopPropagation()
+      // 展开收缩
+      this.mindMap.execCommand(
+        'SET_NODE_EXPAND',
+        this,
+        !this.nodeData.data.expand
+      )
+      this.mindMap.emit('expand_btn_click', this)
+    })
+    this._expandBtn.on('dblclick', e => {
+      e.stopPropagation()
+    })
+    this.group.add(this._expandBtn)
+  }
+  this._showExpandBtn = true
+  this.updateExpandBtnNode()
+  this.updateExpandBtnPos()
+}
+
+//  移除展开收缩按钮
+function removeExpandBtn() {
+  if (this._expandBtn && this._showExpandBtn) {
+    this._expandBtn.remove()
+    this._showExpandBtn = false
+  }
+}
+
+// 显示展开收起按钮
+function showExpandBtn() {
+  if (this.mindMap.opt.alwaysShowExpandBtn) return
+  setTimeout(() => {
+    this.renderExpandBtn()
+  }, 0)
+}
+
+// 隐藏展开收起按钮
+function hideExpandBtn() {
+  if (this.mindMap.opt.alwaysShowExpandBtn || this._isMouseenter) return
+  // 非激活状态且展开状态鼠标移出才隐藏按钮
+  let { isActive, expand } = this.nodeData.data
+  if (!isActive && expand) {
+    setTimeout(() => {
+      this.removeExpandBtn()
+    }, 0)
+  }
+}
+
+export default {
+  createExpandNodeContent,
+  updateExpandBtnNode,
+  updateExpandBtnPos,
+  renderExpandBtn,
+  removeExpandBtn,
+  showExpandBtn,
+  hideExpandBtn
+}

simple-mind-map/src/core/render/node/nodeGeneralization.js

@@ -0,0 +1,118 @@
+import Node from './Node'
+import { createUid } from '../../../utils/index'
+
+//  检查是否存在概要
+function checkHasGeneralization () {
+  return !!this.nodeData.data.generalization
+}
+
+//  创建概要节点
+function createGeneralizationNode () {
+  if (this.isGeneralization || !this.checkHasGeneralization()) {
+    return
+  }
+  if (!this._generalizationLine) {
+    this._generalizationLine = this.draw.path()
+  }
+  if (!this._generalizationNode) {
+    this._generalizationNode = new Node({
+      data: {
+        data: this.nodeData.data.generalization
+      },
+      uid: createUid(),
+      renderer: this.renderer,
+      mindMap: this.mindMap,
+      draw: this.draw,
+      isGeneralization: true
+    })
+    this._generalizationNodeWidth = this._generalizationNode.width
+    this._generalizationNodeHeight = this._generalizationNode.height
+    this._generalizationNode.generalizationBelongNode = this
+    if (this.nodeData.data.generalization.isActive) {
+      this.renderer.addActiveNode(this._generalizationNode)
+    }
+  }
+}
+
+//  更新概要节点
+function updateGeneralization () {
+  if (this.isGeneralization) return
+  this.removeGeneralization()
+  this.createGeneralizationNode()
+}
+
+//  渲染概要节点
+function renderGeneralization () {
+  if (this.isGeneralization) return
+  if (!this.checkHasGeneralization()) {
+    this.removeGeneralization()
+    this._generalizationNodeWidth = 0
+    this._generalizationNodeHeight = 0
+    return
+  }
+  if (this.nodeData.data.expand === false) {
+    this.removeGeneralization()
+    return
+  }
+  this.createGeneralizationNode()
+  this.renderer.layout.renderGeneralization(
+    this,
+    this._generalizationLine,
+    this._generalizationNode
+  )
+  this.style.generalizationLine(this._generalizationLine)
+  this._generalizationNode.render()
+}
+
+//  删除概要节点
+function removeGeneralization () {
+  if (this.isGeneralization) return
+  if (this._generalizationLine) {
+    this._generalizationLine.remove()
+    this._generalizationLine = null
+  }
+  if (this._generalizationNode) {
+    // 删除概要节点时要同步从激活节点里删除
+    this.renderer.removeActiveNode(this._generalizationNode)
+    this._generalizationNode.remove()
+    this._generalizationNode = null
+  }
+  // hack修复当激活一个节点时创建概要，然后立即激活创建的概要节点后会重复创建概要节点并且无法删除的问题
+  if (this.generalizationBelongNode) {
+    this.draw
+      .find('.generalization_' + this.generalizationBelongNode.uid)
+      .remove()
+  }
+}
+
+//  隐藏概要节点
+function hideGeneralization () {
+  if (this.isGeneralization) return
+  if (this._generalizationLine) {
+    this._generalizationLine.hide()
+  }
+  if (this._generalizationNode) {
+    this._generalizationNode.hide()
+  }
+}
+
+//  显示概要节点
+function showGeneralization () {
+  if (this.isGeneralization) return
+  if (this._generalizationLine) {
+    this._generalizationLine.show()
+  }
+  if (this._generalizationNode) {
+    this._generalizationNode.show()
+  }
+}
+
+export default {
+    checkHasGeneralization,
+    createGeneralizationNode,
+    updateGeneralization,
+    renderGeneralization,
+    removeGeneralization,
+    hideGeneralization,
+    showGeneralization
+}

simple-mind-map/src/core/view/View.js

@@ -0,0 +1,296 @@
+import { CONSTANTS } from '../../constants/constant'
+
+//  视图操作类
+class View {
+  //  构造函数
+  constructor(opt = {}) {
+    this.opt = opt
+    this.mindMap = this.opt.mindMap
+    this.scale = 1
+    this.sx = 0
+    this.sy = 0
+    this.x = 0
+    this.y = 0
+    this.firstDrag = true
+    this.setTransformData(this.mindMap.opt.viewData)
+    this.bind()
+  }
+
+  //  绑定
+  bind() {
+    // 快捷键
+    this.mindMap.keyCommand.addShortcut('Control+=', () => {
+      this.enlarge()
+    })
+    this.mindMap.keyCommand.addShortcut('Control+-', () => {
+      this.narrow()
+    })
+    this.mindMap.keyCommand.addShortcut('Control+Enter', () => {
+      this.reset()
+    })
+    this.mindMap.keyCommand.addShortcut('Control+i', () => {
+      this.fit()
+    })
+    this.mindMap.svg.on('dblclick', () => {
+      this.reset()
+    })
+    // 拖动视图
+    this.mindMap.event.on('mousedown', () => {
+      this.sx = this.x
+      this.sy = this.y
+    })
+    this.mindMap.event.on('drag', (e, event) => {
+      if (e.ctrlKey) {
+        // 按住ctrl键拖动为多选
+        return
+      }
+      if (this.firstDrag) {
+        this.firstDrag = false
+        // 清除激活节点
+        if (this.mindMap.renderer.activeNodeList.length > 0) {
+          this.mindMap.execCommand('CLEAR_ACTIVE_NODE')
+        }
+      }
+      this.x = this.sx + event.mousemoveOffset.x
+      this.y = this.sy + event.mousemoveOffset.y
+      this.transform()
+    })
+    this.mindMap.event.on('mouseup', () => {
+      this.firstDrag = true
+    })
+    // 放大缩小视图
+    this.mindMap.event.on('mousewheel', (e, dir, event, isTouchPad) => {
+      let {
+        customHandleMousewheel,
+        mousewheelAction,
+        mouseScaleCenterUseMousePosition,
+        mousewheelMoveStep,
+        mousewheelZoomActionReverse
+      } = this.mindMap.opt
+      // 是否自定义鼠标滚轮事件
+      if (
+        customHandleMousewheel &&
+        typeof customHandleMousewheel === 'function'
+      ) {
+        return customHandleMousewheel(e)
+      }
+      // 鼠标滚轮事件控制缩放
+      if (mousewheelAction === CONSTANTS.MOUSE_WHEEL_ACTION.ZOOM) {
+        let cx = mouseScaleCenterUseMousePosition ? e.clientX : undefined
+        let cy = mouseScaleCenterUseMousePosition ? e.clientY : undefined
+        switch (dir) {
+          // 鼠标滚轮，向上和向左，都是缩小
+          case CONSTANTS.DIR.UP:
+          case CONSTANTS.DIR.LEFT:
+            mousewheelZoomActionReverse ? this.enlarge(cx, cy, isTouchPad) : this.narrow(cx, cy, isTouchPad)
+            break
+          // 鼠标滚轮，向下和向右，都是放大
+          case CONSTANTS.DIR.DOWN:
+          case CONSTANTS.DIR.RIGHT:
+            mousewheelZoomActionReverse ? this.narrow(cx, cy, isTouchPad) : this.enlarge(cx, cy, isTouchPad)
+            break
+        }
+      } else {// 鼠标滚轮事件控制画布移动
+        let step = mousewheelMoveStep
+        if (isTouchPad) {
+          step = 5
+        }
+        switch (dir) {
+          // 上移
+          case CONSTANTS.DIR.DOWN:
+            this.translateY(-step)
+            break
+          // 下移
+          case CONSTANTS.DIR.UP:
+            this.translateY(step)
+            break
+          // 右移
+          case CONSTANTS.DIR.LEFT:
+            this.translateX(-step)
+            break
+          // 左移
+          case CONSTANTS.DIR.RIGHT:
+            this.translateX(step)
+            break
+        }
+      }
+    })
+  }
+
+  //  获取当前变换状态数据
+  getTransformData() {
+    return {
+      transform: this.mindMap.draw.transform(),
+      state: {
+        scale: this.scale,
+        x: this.x,
+        y: this.y,
+        sx: this.sx,
+        sy: this.sy
+      }
+    }
+  }
+
+  //  动态设置变换状态数据
+  setTransformData(viewData) {
+    if (viewData) {
+      Object.keys(viewData.state).forEach(prop => {
+        this[prop] = viewData.state[prop]
+      })
+      this.mindMap.draw.transform({
+        ...viewData.transform
+      })
+      this.mindMap.emit('view_data_change', this.getTransformData())
+      this.mindMap.emit('scale', this.scale)
+    }
+  }
+
+  //  平移x,y方向
+  translateXY(x, y) {
+    this.x += x
+    this.y += y
+    this.transform()
+  }
+
+  //  平移x方向
+  translateX(step) {
+    this.x += step
+    this.transform()
+  }
+
+  //  平移x方式到
+  translateXTo(x) {
+    this.x = x
+    this.transform()
+  }
+
+  //  平移y方向
+  translateY(step) {
+    this.y += step
+    this.transform()
+  }
+
+  //  平移y方向到
+  translateYTo(y) {
+    this.y = y
+    this.transform()
+  }
+
+  //   应用变换
+  transform() {
+    this.mindMap.draw.transform({
+      origin: [0, 0],
+      scale: this.scale,
+      translate: [this.x, this.y]
+    })
+    this.mindMap.emit('view_data_change', this.getTransformData())
+  }
+
+  //  恢复
+  reset() {
+    let scaleChange = this.scale !== 1
+    this.scale = 1
+    this.x = 0
+    this.y = 0
+    this.transform()
+    if (scaleChange) {
+      this.mindMap.emit('scale', this.scale)
+    }
+  }
+
+  //  缩小
+  narrow(cx, cy, isTouchPad) {
+    const scaleRatio = this.mindMap.opt.scaleRatio / (isTouchPad ? 5 : 1)
+    const scale = Math.max(this.scale - scaleRatio, 0.1)
+    this.scaleInCenter(scale, cx, cy)
+    this.transform()
+    this.mindMap.emit('scale', this.scale)
+  }
+
+  //  放大
+  enlarge(cx, cy, isTouchPad) {
+    const scaleRatio = this.mindMap.opt.scaleRatio / (isTouchPad ? 5 : 1)
+    const scale = this.scale + scaleRatio
+    this.scaleInCenter(scale, cx, cy)
+    this.transform()
+    this.mindMap.emit('scale', this.scale)
+  }
+
+  // 基于指定中心进行缩放，cx，cy 可不指定，此时会使用画布中心点
+  scaleInCenter(scale, cx, cy) {
+    if (cx === undefined || cy === undefined) {
+      cx = this.mindMap.width / 2
+      cy = this.mindMap.height / 2
+    }
+    const prevScale = this.scale
+    const ratio = 1 - scale / prevScale
+    const dx = (cx - this.x) * ratio
+    const dy = (cy - this.y) * ratio
+    this.x += dx
+    this.y += dy
+    this.scale = scale
+  }
+
+  //  设置缩放
+  setScale(scale, cx, cy) {
+    if (cx !== undefined && cy !== undefined) {
+      this.scaleInCenter(scale, cx, cy)
+    } else {
+      this.scale = scale
+    }
+    this.transform()
+    this.mindMap.emit('scale', this.scale)
+  }
+
+  // 适应画布大小
+  fit() {
+    let { fitPadding } = this.mindMap.opt
+    let draw = this.mindMap.draw
+    let origTransform = draw.transform()
+    let rect = draw.rbox()
+    let drawWidth = rect.width / origTransform.scaleX
+    let drawHeight = rect.height / origTransform.scaleY
+    let drawRatio = drawWidth / drawHeight
+    let { width: elWidth, height: elHeight } =
+      this.mindMap.el.getBoundingClientRect()
+    elWidth = elWidth - fitPadding * 2
+    elHeight = elHeight - fitPadding * 2
+    let elRatio = elWidth / elHeight
+    let newScale = 0
+    let flag = ''
+    if (drawWidth <= elWidth && drawHeight <= elHeight) {
+      newScale = 1
+      flag = 1
+    } else {
+      let newWidth = 0
+      let newHeight = 0
+      if (drawRatio > elRatio) {
+        newWidth = elWidth
+        newHeight = elWidth / drawRatio
+        flag = 2
+      } else {
+        newHeight = elHeight
+        newWidth = elHeight * drawRatio
+        flag = 3
+      }
+      newScale = newWidth / drawWidth
+    }
+    this.setScale(newScale)
+    let newRect = draw.rbox()
+    let newX = 0
+    let newY = 0
+    if (flag === 1) {
+      newX = -newRect.x + fitPadding + (elWidth - newRect.width) / 2
+      newY = -newRect.y + fitPadding + (elHeight - newRect.height) / 2
+    } else if (flag === 2) {
+      newX = -newRect.x + fitPadding
+      newY = -newRect.y + fitPadding + (elHeight - newRect.height) / 2
+    } else if (flag === 3) {
+      newX = -newRect.x + fitPadding + (elWidth - newRect.width) / 2
+      newY = -newRect.y + fitPadding
+    }
+    this.translateXY(newX, newY)
+  }
+}
+
+export default View

simple-mind-map/src/layouts/Base.js

@@ -0,0 +1,317 @@
+import Node from '../core/render/node/Node'
+import { CONSTANTS, initRootNodePositionMap } from '../constants/constant'
+import Lru from '../utils/Lru'
+import { createUid } from '../utils/index'
+
+//  布局基类
+class Base {
+  //  构造函数
+  constructor(renderer) {
+    // 渲染实例
+    this.renderer = renderer
+    // 控制实例
+    this.mindMap = renderer.mindMap
+    // 绘图对象
+    this.draw = this.mindMap.draw
+    // 根节点
+    this.root = null
+    this.lru = new Lru(this.mindMap.opt.maxNodeCacheCount)
+  }
+
+  //  计算节点位置
+  doLayout() {
+    throw new Error('【computed】方法为必要方法，需要子类进行重写！')
+  }
+
+  //  连线
+  renderLine() {
+    throw new Error('【renderLine】方法为必要方法，需要子类进行重写！')
+  }
+
+  //  定位展开收缩按钮
+  renderExpandBtn() {
+    throw new Error('【renderExpandBtn】方法为必要方法，需要子类进行重写！')
+  }
+
+  //  概要节点
+  renderGeneralization() {}
+
+  // 通过uid缓存节点
+  cacheNode(uid, node) {
+    // 记录本次渲染时的节点
+    this.renderer.nodeCache[uid] = node
+    // 记录所有渲染时的节点
+    this.lru.add(uid, node)
+  }
+
+  // 检查当前来源是否需要重新计算节点大小
+  checkIsNeedResizeSources() {
+    return [CONSTANTS.CHANGE_THEME, CONSTANTS.TRANSFORM_TO_NORMAL_NODE].includes(this.renderer.renderSource)
+  }
+
+  // 层级类型改变
+  checkIsLayerTypeChange(oldIndex, newIndex) {
+    if (oldIndex >= 2 && newIndex >= 2) return false
+    if (oldIndex >= 2 && newIndex < 2) return true
+    if (oldIndex < 2 && newIndex >= 2) return true
+  }
+
+  // 检查是否是结构布局改变重新渲染展开收起按钮占位元素
+  checkIsLayoutChangeRerenderExpandBtnPlaceholderRect(node) {
+    if (this.renderer.renderSource === CONSTANTS.CHANGE_LAYOUT) {
+      node.needRerenderExpandBtnPlaceholderRect = true
+    }
+  }
+
+  //  创建节点实例
+  createNode(data, parent, isRoot, layerIndex) {
+    // 创建节点
+    let newNode = null
+    // 数据上保存了节点引用，那么直接复用节点
+    if (data && data._node && !this.renderer.reRender) {
+      newNode = data._node
+      let isLayerTypeChange = this.checkIsLayerTypeChange(newNode.layerIndex, layerIndex)
+      newNode.reset()
+      newNode.layerIndex = layerIndex
+      this.cacheNode(data._node.uid, newNode)
+      this.checkIsLayoutChangeRerenderExpandBtnPlaceholderRect(newNode)
+      // 主题或主题配置改变了需要重新计算节点大小和布局
+      if (this.checkIsNeedResizeSources() || isLayerTypeChange) {
+        newNode.getSize()
+        newNode.needLayout = true
+      }
+    } else if (this.lru.has(data.data.uid) && !this.renderer.reRender) {
+      // 数据上没有保存节点引用，但是通过uid找到了缓存的节点，也可以复用
+      newNode = this.lru.get(data.data.uid)
+      // 保存该节点上一次的数据
+      let lastData = JSON.stringify(newNode.nodeData.data)
+      let isLayerTypeChange = this.checkIsLayerTypeChange(newNode.layerIndex, layerIndex)
+      newNode.reset()
+      newNode.nodeData = newNode.handleData(data || {})
+      newNode.layerIndex = layerIndex
+      this.cacheNode(data.data.uid, newNode)
+      this.checkIsLayoutChangeRerenderExpandBtnPlaceholderRect(newNode)
+      data._node = newNode
+      // 主题或主题配置改变了需要重新计算节点大小和布局
+      let isResizeSource = this.checkIsNeedResizeSources()
+      // 节点数据改变了需要重新计算节点大小和布局
+      let isNodeDataChange = lastData !== JSON.stringify(data.data)
+      if (isResizeSource || isNodeDataChange || isLayerTypeChange) {
+        newNode.getSize()
+        newNode.needLayout = true
+      }
+    } else {
+      // 创建新节点
+      let uid = data.data.uid || createUid()
+      newNode = new Node({
+        data,
+        uid,
+        renderer: this.renderer,
+        mindMap: this.mindMap,
+        draw: this.draw,
+        layerIndex
+      })
+      // uid保存到数据上，为了节点复用
+      data.data.uid = uid
+      this.cacheNode(uid, newNode)
+      // 数据关联实际节点
+      data._node = newNode
+      if (data.data.isActive) {
+        this.renderer.addActiveNode(newNode)
+      }
+    }
+    // 根节点
+    if (isRoot) {
+      newNode.isRoot = true
+      this.root = newNode
+    } else {
+      // 互相收集
+      newNode.parent = parent._node
+      parent._node.addChildren(newNode)
+    }
+    return newNode
+  }
+
+  // 格式化节点位置
+  formatPosition(value, size, nodeSize) {
+    if (typeof value === 'number') {
+      return value
+    } else if (initRootNodePositionMap[value] !== undefined) {
+      return size * initRootNodePositionMap[value]
+    } else if (/^\d\d*%$/.test(value)) {
+      return Number.parseFloat(value) / 100 * size
+    } else {
+      return (size - nodeSize) / 2
+    }
+  }
+
+  //  定位节点到画布中间
+  setNodeCenter(node) {
+    let { initRootNodePosition } = this.mindMap.opt
+    let { CENTER }= CONSTANTS.INIT_ROOT_NODE_POSITION
+    if (!initRootNodePosition || !Array.isArray(initRootNodePosition) || initRootNodePosition.length < 2) {
+      initRootNodePosition = [CENTER, CENTER]
+    }
+    node.left = this.formatPosition(initRootNodePosition[0], this.mindMap.width, node.width)
+    node.top = this.formatPosition(initRootNodePosition[1], this.mindMap.height, node.height)
+  }
+
+  //  更新子节点属性
+  updateChildren(children, prop, offset) {
+    children.forEach(item => {
+      item[prop] += offset
+      if (item.children && item.children.length && !item.hasCustomPosition()) {
+        // 适配自定义位置
+        this.updateChildren(item.children, prop, offset)
+      }
+    })
+  }
+
+  //  更新子节点多个属性
+  updateChildrenPro(children, props) {
+    children.forEach(item => {
+      Object.keys(props).forEach((prop) => {
+        item[prop] += props[prop]
+      })
+      if (item.children && item.children.length && !item.hasCustomPosition()) {
+        // 适配自定义位置
+        this.updateChildrenPro(item.children, props)
+      }
+    })
+  }
+
+  //  递归计算节点的宽度
+  getNodeAreaWidth(node) {
+    let widthArr = []
+    let loop = (node, width) => {
+      if (node.children.length) {
+        width += node.width / 2
+        node.children.forEach(item => {
+          loop(item, width)
+        })
+      } else {
+        width += node.width
+        widthArr.push(width)
+      }
+    }
+    loop(node, 0)
+    return Math.max(...widthArr)
+  }
+
+  //  二次贝塞尔曲线
+  quadraticCurvePath(x1, y1, x2, y2) {
+    let cx = x1 + (x2 - x1) * 0.2
+    let cy = y1 + (y2 - y1) * 0.8
+    return `M ${x1},${y1} Q ${cx},${cy} ${x2},${y2}`
+  }
+
+  //  三次贝塞尔曲线
+  cubicBezierPath(x1, y1, x2, y2) {
+    let cx1 = x1 + (x2 - x1) / 2
+    let cy1 = y1
+    let cx2 = cx1
+    let cy2 = y2
+    return `M ${x1},${y1} C ${cx1},${cy1} ${cx2},${cy2} ${x2},${y2}`
+  }
+
+  //   获取节点的marginX
+  getMarginX(layerIndex) {
+    return layerIndex === 1
+      ? this.mindMap.themeConfig.second.marginX
+      : this.mindMap.themeConfig.node.marginX
+  }
+
+  //  获取节点的marginY
+  getMarginY(layerIndex) {
+    return layerIndex === 1
+      ? this.mindMap.themeConfig.second.marginY
+      : this.mindMap.themeConfig.node.marginY
+  }
+
+  //  获取节点包括概要在内的宽度
+  getNodeWidthWithGeneralization(node) {
+    return Math.max(
+      node.width,
+      node.checkHasGeneralization() ? node._generalizationNodeWidth : 0
+    )
+  }
+
+  //  获取节点包括概要在内的高度
+  getNodeHeightWithGeneralization(node) {
+    return Math.max(
+      node.height,
+      node.checkHasGeneralization() ? node._generalizationNodeHeight : 0
+    )
+  }
+
+  //  获取节点的边界值
+  /**
+   * dir：生长方向，h（水平）、v（垂直）
+   * isLeft：是否向左生长
+   */
+  getNodeBoundaries(node, dir) {
+    let { generalizationLineMargin, generalizationNodeMargin } =
+      this.mindMap.themeConfig
+    let walk = root => {
+      let _left = Infinity
+      let _right = -Infinity
+      let _top = Infinity
+      let _bottom = -Infinity
+      if (root.children && root.children.length > 0) {
+        root.children.forEach(child => {
+          let { left, right, top, bottom } = walk(child)
+          // 概要内容的宽度
+          let generalizationWidth =
+            child.checkHasGeneralization() && child.nodeData.data.expand
+              ? child._generalizationNodeWidth + generalizationNodeMargin
+              : 0
+          // 概要内容的高度
+          let generalizationHeight =
+            child.checkHasGeneralization() && child.nodeData.data.expand
+              ? child._generalizationNodeHeight + generalizationNodeMargin
+              : 0
+          if (left - (dir === 'h' ? generalizationWidth : 0) < _left) {
+            _left = left - (dir === 'h' ? generalizationWidth : 0)
+          }
+          if (right + (dir === 'h' ? generalizationWidth : 0) > _right) {
+            _right = right + (dir === 'h' ? generalizationWidth : 0)
+          }
+          if (top < _top) {
+            _top = top
+          }
+          if (bottom + (dir === 'v' ? generalizationHeight : 0) > _bottom) {
+            _bottom = bottom + (dir === 'v' ? generalizationHeight : 0)
+          }
+        })
+      }
+      let cur = {
+        left: root.left,
+        right: root.left + root.width,
+        top: root.top,
+        bottom: root.top + root.height
+      }
+      return {
+        left: cur.left < _left ? cur.left : _left,
+        right: cur.right > _right ? cur.right : _right,
+        top: cur.top < _top ? cur.top : _top,
+        bottom: cur.bottom > _bottom ? cur.bottom : _bottom
+      }
+    }
+    let { left, right, top, bottom } = walk(node)
+    return {
+      left,
+      right,
+      top,
+      bottom,
+      generalizationLineMargin,
+      generalizationNodeMargin
+    }
+  }
+
+  // 获取节点实际存在几个子节点
+  getNodeActChildrenLength(node) {
+    return node.nodeData.children && node.nodeData.children.length
+  }
+}
+
+export default Base

simple-mind-map/src/layouts/CatalogOrganization.js

@@ -0,0 +1,359 @@
+import Base from './Base'
+import { walk, asyncRun } from '../utils'
+
+//  目录组织图
+class CatalogOrganization extends Base {
+  //  构造函数
+  constructor(opt = {}) {
+    super(opt)
+  }
+
+  //  布局
+  doLayout(callback) {
+    let task = [
+      () => {
+        this.computedBaseValue()
+      },
+      () => {
+        this.computedLeftTopValue()
+      },
+      () => {
+        this.adjustLeftTopValue()
+      },
+      () => {
+        callback(this.root)
+      }
+    ]
+    asyncRun(task)
+  }
+
+  //  遍历数据计算节点的left、width、height
+  computedBaseValue() {
+    walk(
+      this.renderer.renderTree,
+      null,
+      (cur, parent, isRoot, layerIndex) => {
+        let newNode = this.createNode(cur, parent, isRoot, layerIndex)
+        // 根节点定位在画布中心位置
+        if (isRoot) {
+          this.setNodeCenter(newNode)
+        } else {
+          // 非根节点
+          if (parent._node.isRoot) {
+            newNode.top =
+              parent._node.top +
+              parent._node.height +
+              this.getMarginX(layerIndex)
+          }
+        }
+        if (!cur.data.expand) {
+          return true
+        }
+      },
+      (cur, parent, isRoot, layerIndex) => {
+        if (isRoot) {
+          let len = cur.data.expand === false ? 0 : cur._node.children.length
+          cur._node.childrenAreaWidth = len
+            ? cur._node.children.reduce((h, item) => {
+                return h + item.width
+              }, 0) +
+              (len + 1) * this.getMarginX(layerIndex + 1)
+            : 0
+        }
+      },
+      true,
+      0
+    )
+  }
+
+  //  遍历节点树计算节点的left、top
+  computedLeftTopValue() {
+    walk(
+      this.root,
+      null,
+      (node, parent, isRoot, layerIndex) => {
+        if (
+          node.nodeData.data.expand &&
+          node.children &&
+          node.children.length
+        ) {
+          let marginX = this.getMarginX(layerIndex + 1)
+          let marginY = this.getMarginY(layerIndex + 1)
+          if (isRoot) {
+            let left = node.left + node.width / 2 - node.childrenAreaWidth / 2
+            let totalLeft = left + marginX
+            node.children.forEach(cur => {
+              cur.left = totalLeft
+              totalLeft += cur.width + marginX
+            })
+          } else {
+            let totalTop = node.top + node.height + marginY + (this.getNodeActChildrenLength(node) > 0 ? node.expandBtnSize : 0)
+            node.children.forEach(cur => {
+              cur.left = node.left + node.width * 0.5
+              cur.top = totalTop
+              totalTop += cur.height + marginY + (this.getNodeActChildrenLength(cur) > 0 ? cur.expandBtnSize : 0)
+            })
+          }
+        }
+      },
+      null,
+      true
+    )
+  }
+
+  //  调整节点left、top
+  adjustLeftTopValue() {
+    walk(
+      this.root,
+      null,
+      (node, parent, isRoot, layerIndex) => {
+        if (!node.nodeData.data.expand) {
+          return
+        }
+        // 调整left
+        if (parent && parent.isRoot) {
+          let areaWidth = this.getNodeAreaWidth(node)
+          let difference = areaWidth - node.width
+          if (difference > 0) {
+            this.updateBrothersLeft(node, difference)
+          }
+        }
+        // 调整top
+        let len = node.children.length
+        if (parent && !parent.isRoot && len > 0) {
+          let marginY = this.getMarginY(layerIndex + 1)
+          let totalHeight =
+            node.children.reduce((h, item) => {
+              return h + item.height + (this.getNodeActChildrenLength(item) > 0 ? item.expandBtnSize : 0)
+            }, 0) +
+            len * marginY
+          this.updateBrothersTop(node, totalHeight)
+        }
+      },
+      (node, parent, isRoot) => {
+        if (isRoot) {
+          let { right, left } = this.getNodeBoundaries(node, 'h')
+          let childrenWidth = right - left
+          let offset = (node.left - left) - (childrenWidth - node.width) / 2
+          this.updateChildren(node.children, 'left', offset)
+        }
+      },
+      true
+    )
+  }
+
+  //  调整兄弟节点的left
+  updateBrothersLeft(node, addWidth) {
+    if (node.parent) {
+      let childrenList = node.parent.children
+      let index = childrenList.findIndex(item => {
+        return item === node
+      })
+      childrenList.forEach((item, _index) => {
+        if (item.hasCustomPosition() || _index <= index) {
+          // 适配自定义位置
+          return
+        }
+        item.left += addWidth
+        // 同步更新子节点的位置
+        if (item.children && item.children.length) {
+          this.updateChildren(item.children, 'left', addWidth)
+        }
+      })
+      // 更新父节点的位置
+      this.updateBrothersLeft(node.parent, addWidth)
+    }
+  }
+
+  //  调整兄弟节点的top
+  updateBrothersTop(node, addHeight) {
+    if (node.parent && !node.parent.isRoot) {
+      let childrenList = node.parent.children
+      let index = childrenList.findIndex(item => {
+        return item === node
+      })
+      childrenList.forEach((item, _index) => {
+        if (item.hasCustomPosition()) {
+          // 适配自定义位置
+          return
+        }
+        let _offset = 0
+        // 下面的节点往下移
+        if (_index > index) {
+          _offset = addHeight
+        }
+        item.top += _offset
+        // 同步更新子节点的位置
+        if (item.children && item.children.length) {
+          this.updateChildren(item.children, 'top', _offset)
+        }
+      })
+      // 更新父节点的位置
+      this.updateBrothersTop(node.parent, addHeight)
+    }
+  }
+
+  //  绘制连线，连接该节点到其子节点
+  renderLine(node, lines, style) {
+    if (node.children.length <= 0) {
+      return []
+    }
+    let { left, top, width, height, expandBtnSize } = node
+    if (!this.mindMap.opt.alwaysShowExpandBtn) {
+      expandBtnSize = 0
+    }
+    let len = node.children.length
+    let marginX = this.getMarginX(node.layerIndex + 1)
+    if (node.isRoot) {
+      // 根节点
+      let x1 = left + width / 2
+      let y1 = top + height
+      let s1 = marginX * 0.7
+      let minx = Infinity
+      let maxx = -Infinity
+      node.children.forEach((item, index) => {
+        let x2 = item.left + item.width / 2
+        let y2 = item.top
+        if (x2 < minx) {
+          minx = x2
+        }
+        if (x2 > maxx) {
+          maxx = x2
+        }
+        // 节点使用横线风格，需要额外渲染横线
+        let nodeUseLineStylePath = this.mindMap.themeConfig.nodeUseLineStyle
+          ? ` L ${item.left},${y2} L ${item.left + item.width},${y2}`
+          : ''
+        let path =
+          `M ${x2},${y1 + s1} L ${x2},${y1 + s1 > y2 ? y2 + item.height : y2}` +
+          nodeUseLineStylePath
+        // 竖线
+        lines[index].plot(path)
+        style && style(lines[index], item)
+      })
+      minx = Math.min(minx, x1)
+      maxx = Math.max(maxx, x1)
+      // 父节点的竖线
+      let line1 = this.draw.path()
+      node.style.line(line1)
+      line1.plot(`M ${x1},${y1} L ${x1},${y1 + s1}`)
+      node._lines.push(line1)
+      style && style(line1, node)
+      // 水平线
+      if (len > 0) {
+        let lin2 = this.draw.path()
+        node.style.line(lin2)
+        lin2.plot(`M ${minx},${y1 + s1} L ${maxx},${y1 + s1}`)
+        node._lines.push(lin2)
+        style && style(lin2, node)
+      }
+    } else {
+      // 非根节点
+      let y1 = top + height
+      let maxy = -Infinity
+      let x2 = node.left + node.width * 0.3
+      node.children.forEach((item, index) => {
+        // 为了适配自定义位置，下面做了各种位置的兼容
+        let y2 = item.top + item.height / 2
+        if (y2 > maxy) {
+          maxy = y2
+        }
+        // 水平线
+        let path = ''
+        let _left = item.left
+        let _isLeft = item.left + item.width < x2
+        let _isXCenter = false
+        if (_isLeft) {
+          // 水平位置在父节点左边
+          _left = item.left + item.width
+        } else if (item.left < x2 && item.left + item.width > x2) {
+          // 水平位置在父节点之间
+          _isXCenter = true
+          y2 = item.top
+          maxy = y2
+        }
+        if (y2 > top && y2 < y1) {
+          // 自定义位置的情况：垂直位置节点在父节点之间
+          path = `M ${
+            _isLeft ? node.left : node.left + node.width
+          },${y2} L ${_left},${y2}`
+        } else if (y2 < y1) {
+          // 自定义位置的情况：垂直位置节点在父节点上面
+          if (_isXCenter) {
+            y2 = item.top + item.height
+            _left = x2
+          }
+          path = `M ${x2},${top} L ${x2},${y2} L ${_left},${y2}`
+        } else {
+          if (_isXCenter) {
+            _left = x2
+          }
+          path = `M ${x2},${y2} L ${_left},${y2}`
+        }
+        // 节点使用横线风格，需要额外渲染横线
+        let nodeUseLineStylePath = this.mindMap.themeConfig.nodeUseLineStyle
+          ? ` L ${_left},${y2 - item.height / 2} L ${_left},${
+              y2 + item.height / 2
+            }`
+          : ''
+        path += nodeUseLineStylePath
+        lines[index].plot(path)
+        style && style(lines[index], item)
+      })
+      // 竖线
+      if (len > 0) {
+        let lin2 = this.draw.path()
+        expandBtnSize = len > 0 ? expandBtnSize : 0
+        node.style.line(lin2)
+        if (maxy < y1 + expandBtnSize) {
+          lin2.hide()
+        } else {
+          lin2.plot(`M ${x2},${y1 + expandBtnSize} L ${x2},${maxy}`)
+          lin2.show()
+        }
+        node._lines.push(lin2)
+        style && style(lin2, node)
+      }
+    }
+  }
+
+  //  渲染按钮
+  renderExpandBtn(node, btn) {
+    let { width, height, expandBtnSize, isRoot } = node
+    if (!isRoot) {
+      let { translateX, translateY } = btn.transform()
+      btn.translate(
+        width * 0.3 - expandBtnSize / 2 - translateX,
+        height + expandBtnSize / 2 - translateY
+      )
+    }
+  }
+
+  //  创建概要节点
+  renderGeneralization(node, gLine, gNode) {
+    let {
+      top,
+      bottom,
+      right,
+      generalizationLineMargin,
+      generalizationNodeMargin
+    } = this.getNodeBoundaries(node, 'h')
+    let x1 = right + generalizationLineMargin
+    let y1 = top
+    let x2 = right + generalizationLineMargin
+    let y2 = bottom
+    let cx = x1 + 20
+    let cy = y1 + (y2 - y1) / 2
+    let path = `M ${x1},${y1} Q ${cx},${cy} ${x2},${y2}`
+    gLine.plot(path)
+    gNode.left = right + generalizationNodeMargin
+    gNode.top = top + (bottom - top - gNode.height) / 2
+  }
+
+  // 渲染展开收起按钮的隐藏占位元素
+  renderExpandBtnRect(rect, expandBtnSize, width, height, node) {
+    rect.size(width, expandBtnSize).x(0).y(height)
+  }
+}
+
+export default CatalogOrganization

simple-mind-map/src/layouts/Fishbone.js

@@ -0,0 +1,399 @@
+import Base from './Base'
+import { walk, asyncRun, degToRad } from '../utils'
+import { CONSTANTS } from '../constants/constant'
+import utils from './fishboneUtils'
+
+//  鱼骨图
+class Fishbone extends Base {
+  //  构造函数
+  constructor(opt = {}) {
+    super(opt)
+    this.indent = 0.3
+    this.childIndent = 0.5
+  }
+
+  //  布局
+  doLayout(callback) {
+    let task = [
+      () => {
+        this.computedBaseValue()
+      },
+      () => {
+        this.computedLeftTopValue()
+      },
+      () => {
+        this.adjustLeftTopValue()
+      },
+      () => {
+        callback(this.root)
+      }
+    ]
+    asyncRun(task)
+  }
+
+  //  遍历数据创建节点、计算根节点的位置，计算根节点的子节点的top值
+  computedBaseValue() {
+    walk(
+      this.renderer.renderTree,
+      null,
+      (node, parent, isRoot, layerIndex, index) => {
+        // 创建节点
+        let newNode = this.createNode(node, parent, isRoot, layerIndex)
+        // 根节点定位在画布中心位置
+        if (isRoot) {
+          this.setNodeCenter(newNode)
+        } else {
+          // 非根节点
+          // 三级及以下节点以上级方向为准
+          if (parent._node.dir) {
+            newNode.dir = parent._node.dir
+          } else {
+            // 节点生长方向
+            newNode.dir =
+              index % 2 === 0
+                ? CONSTANTS.LAYOUT_GROW_DIR.TOP
+                : CONSTANTS.LAYOUT_GROW_DIR.BOTTOM
+          }
+          // 计算二级节点的top值
+          if (parent._node.isRoot) {
+            if (this.checkIsTop(newNode)) {
+              newNode.top = parent._node.top - newNode.height
+            } else {
+              newNode.top = parent._node.top + parent._node.height
+            }
+          }
+        }
+        if (!node.data.expand) {
+          return true
+        }
+      },
+      null,
+      true,
+      0
+    )
+  }
+
+  //  遍历节点树计算节点的left、top
+  computedLeftTopValue() {
+    walk(
+      this.root,
+      null,
+      (node, parent, isRoot, layerIndex) => {
+        if (node.isRoot) {
+          let topTotalLeft = node.left + node.width + node.height
+          let bottomTotalLeft = node.left + node.width + node.height
+          node.children.forEach(item => {
+            if (this.checkIsTop(item)) {
+              item.left = topTotalLeft
+              topTotalLeft += item.width
+            } else {
+              item.left = bottomTotalLeft + 20
+              bottomTotalLeft += item.width
+            }
+          })
+        }
+        let params = { layerIndex, node, ctx: this }
+        if (this.checkIsTop(node)) {
+          utils.top.computedLeftTopValue(params)
+        } else {
+          utils.bottom.computedLeftTopValue(params)
+        }
+      },
+      null,
+      true
+    )
+  }
+
+  //  调整节点left、top
+  adjustLeftTopValue() {
+    walk(
+      this.root,
+      null,
+      (node, parent, isRoot, layerIndex) => {
+        if (!node.nodeData.data.expand) {
+          return
+        }
+        let params = { node, parent, layerIndex, ctx: this }
+        if (this.checkIsTop(node)) {
+          utils.top.adjustLeftTopValueBefore(params)
+        } else {
+          utils.bottom.adjustLeftTopValueBefore(params)
+        }
+      },
+      (node, parent) => {
+        let params = { parent, node, ctx: this }
+        if (this.checkIsTop(node)) {
+          utils.top.adjustLeftTopValueAfter(params)
+        } else {
+          utils.bottom.adjustLeftTopValueAfter(params)
+        }
+        // 调整二级节点的子节点的left值
+        if (node.isRoot) {
+          let topTotalLeft = 0
+          let bottomTotalLeft = 0
+          node.children.forEach(item => {
+            if (this.checkIsTop(item)) {
+              item.left += topTotalLeft
+              this.updateChildren(item.children, 'left', topTotalLeft)
+              let { left, right } = this.getNodeBoundaries(item, 'h')
+              topTotalLeft += right - left
+            } else {
+              item.left += bottomTotalLeft
+              this.updateChildren(item.children, 'left', bottomTotalLeft)
+              let { left, right } = this.getNodeBoundaries(item, 'h')
+              bottomTotalLeft += right - left
+            }
+          })
+        }
+      },
+      true
+    )
+  }
+
+  //  递归计算节点的宽度
+  getNodeAreaHeight(node) {
+    let totalHeight = 0
+    let loop = node => {
+      totalHeight +=
+        node.height +
+        (this.getNodeActChildrenLength(node) > 0 ? node.expandBtnSize : 0)
+      if (node.children.length) {
+        node.children.forEach(item => {
+          loop(item)
+        })
+      }
+    }
+    loop(node)
+    return totalHeight
+  }
+
+  //  调整兄弟节点的left
+  updateBrothersLeft(node) {
+    let childrenList = node.children
+    let totalAddWidth = 0
+    childrenList.forEach(item => {
+      item.left += totalAddWidth
+      if (item.children && item.children.length) {
+        this.updateChildren(item.children, 'left', totalAddWidth)
+      }
+      let { left, right } = this.getNodeBoundaries(item, 'h')
+      let areaWidth = right - left
+      let difference = areaWidth - item.width
+      if (difference > 0) {
+        totalAddWidth += difference
+      }
+    })
+  }
+
+  //  调整兄弟节点的top
+  updateBrothersTop(node, addHeight) {
+    if (node.parent && !node.parent.isRoot) {
+      let childrenList = node.parent.children
+      let index = childrenList.findIndex(item => {
+        return item === node
+      })
+      childrenList.forEach((item, _index) => {
+        if (item.hasCustomPosition()) {
+          // 适配自定义位置
+          return
+        }
+        let _offset = 0
+        // 下面的节点往下移
+        if (_index > index) {
+          _offset = addHeight
+        }
+        item.top += _offset
+        // 同步更新子节点的位置
+        if (item.children && item.children.length) {
+          this.updateChildren(item.children, 'top', _offset)
+        }
+      })
+      // 更新父节点的位置
+      if (this.checkIsTop(node)) {
+        this.updateBrothersTop(node.parent, addHeight)
+      } else {
+        this.updateBrothersTop(
+          node.parent,
+          node.layerIndex === 3 ? 0 : addHeight
+        )
+      }
+    }
+  }
+
+  // 检查节点是否是上方节点
+  checkIsTop(node) {
+    return node.dir === CONSTANTS.LAYOUT_GROW_DIR.TOP
+  }
+
+  //  绘制连线，连接该节点到其子节点
+  renderLine(node, lines, style) {
+    if (node.layerIndex !== 1 && node.children.length <= 0) {
+      return []
+    }
+    let { top, height, expandBtnSize } = node
+    if (!this.mindMap.opt.alwaysShowExpandBtn) {
+      expandBtnSize = 0
+    }
+    let len = node.children.length
+    if (node.isRoot) {
+      // 当前节点是根节点
+      // 根节点的子节点是和根节点同一水平线排列
+      let maxx = -Infinity
+      node.children.forEach(item => {
+        if (item.left > maxx) {
+          maxx = item.left
+        }
+        // 水平线段到二级节点的连线
+        let nodeLineX = item.left
+        let offset = node.height / 2
+        let offsetX = offset / Math.tan(degToRad(this.mindMap.opt.fishboneDeg))
+        let line = this.draw.path()
+        if (this.checkIsTop(item)) {
+          line.plot(
+            `M ${nodeLineX - offsetX},${item.top + item.height + offset} L ${
+              item.left
+            },${item.top + item.height}`
+          )
+        } else {
+          line.plot(
+            `M ${nodeLineX - offsetX},${item.top - offset} L ${nodeLineX},${
+              item.top
+            }`
+          )
+        }
+        node.style.line(line)
+        node._lines.push(line)
+        style && style(line, node)
+      })
+      // 从根节点出发的水平线
+      let nodeHalfTop = node.top + node.height / 2
+      let offset = node.height / 2
+      let line = this.draw.path()
+      line.plot(
+        `M ${node.left + node.width},${nodeHalfTop} L ${
+          maxx - offset / Math.tan(degToRad(this.mindMap.opt.fishboneDeg))
+        },${nodeHalfTop}`
+      )
+      node.style.line(line)
+      node._lines.push(line)
+      style && style(line, node)
+    } else {
+      // 当前节点为非根节点
+      let maxy = -Infinity
+      let miny = Infinity
+      let maxx = -Infinity
+      let x = node.left + node.width * this.indent
+      node.children.forEach((item, index) => {
+        if (item.left > maxx) {
+          maxx = item.left
+        }
+        let y = item.top + item.height / 2
+        if (y > maxy) {
+          maxy = y
+        }
+        if (y < miny) {
+          miny = y
+        }
+        // 水平线
+        if (node.layerIndex > 1) {
+          let path = `M ${x},${y} L ${item.left},${y}`
+          lines[index].plot(path)
+          style && style(lines[index], item)
+        }
+      })
+      // 斜线
+      if (len >= 0) {
+        let line = this.draw.path()
+        expandBtnSize = len > 0 ? expandBtnSize : 0
+        let lineLength = maxx - node.left - node.width * this.indent
+        lineLength = Math.max(lineLength, 0)
+        let params = {
+          node,
+          line,
+          top,
+          x,
+          lineLength,
+          height,
+          expandBtnSize,
+          maxy,
+          miny,
+          ctx: this
+        }
+        if (this.checkIsTop(node)) {
+          utils.top.renderLine(params)
+        } else {
+          utils.bottom.renderLine(params)
+        }
+        node.style.line(line)
+        node._lines.push(line)
+        style && style(line, node)
+      }
+    }
+  }
+
+  //  渲染按钮
+  renderExpandBtn(node, btn) {
+    let { width, height, expandBtnSize, isRoot } = node
+    if (!isRoot) {
+      let { translateX, translateY } = btn.transform()
+      let params = {
+        node,
+        btn,
+        expandBtnSize,
+        translateX,
+        translateY,
+        width,
+        height
+      }
+      if (this.checkIsTop(node)) {
+        utils.top.renderExpandBtn(params)
+      } else {
+        utils.bottom.renderExpandBtn(params)
+      }
+    }
+  }
+
+  //  创建概要节点
+  renderGeneralization(node, gLine, gNode) {
+    let {
+      top,
+      bottom,
+      right,
+      generalizationLineMargin,
+      generalizationNodeMargin
+    } = this.getNodeBoundaries(node, 'h')
+    let x1 = right + generalizationLineMargin
+    let y1 = top
+    let x2 = right + generalizationLineMargin
+    let y2 = bottom
+    let cx = x1 + 20
+    let cy = y1 + (y2 - y1) / 2
+    let path = `M ${x1},${y1} Q ${cx},${cy} ${x2},${y2}`
+    gLine.plot(path)
+    gNode.left = right + generalizationNodeMargin
+    gNode.top = top + (bottom - top - gNode.height) / 2
+  }
+
+  // 渲染展开收起按钮的隐藏占位元素
+  renderExpandBtnRect(rect, expandBtnSize, width, height, node) {
+    let dir = ''
+    if (node.dir === CONSTANTS.LAYOUT_GROW_DIR.TOP) {
+      dir =
+        node.layerIndex === 1
+          ? CONSTANTS.LAYOUT_GROW_DIR.TOP
+          : CONSTANTS.LAYOUT_GROW_DIR.BOTTOM
+    } else {
+      dir =
+        node.layerIndex === 1
+          ? CONSTANTS.LAYOUT_GROW_DIR.BOTTOM
+          : CONSTANTS.LAYOUT_GROW_DIR.TOP
+    }
+    if (dir === CONSTANTS.LAYOUT_GROW_DIR.TOP) {
+      rect.size(width, expandBtnSize).x(0).y(-expandBtnSize)
+    } else {
+      rect.size(width, expandBtnSize).x(0).y(height)
+    }
+  }
+}
+
+export default Fishbone

simple-mind-map/src/layouts/FishboneBottom.js

@@ -0,0 +1,369 @@
+import Base from './Base'
+import { walk, asyncRun } from '../utils'
+import { CONSTANTS } from '../utils/constant'
+
+const degToRad = deg => {
+  return (Math.PI / 180) * deg
+}
+
+//  下方鱼骨图
+class Fishbone extends Base {
+  //  构造函数
+  constructor(opt = {}) {
+    super(opt)
+  }
+
+  //  布局
+  doLayout(callback) {
+    let task = [
+      () => {
+        this.computedBaseValue()
+      },
+      () => {
+        this.computedLeftTopValue()
+      },
+      () => {
+        this.adjustLeftTopValue()
+      },
+      () => {
+        callback(this.root)
+      }
+    ]
+    asyncRun(task)
+  }
+
+  //  遍历数据创建节点、计算根节点的位置，计算根节点的子节点的top值
+  computedBaseValue() {
+    walk(
+      this.renderer.renderTree,
+      null,
+      (node, parent, isRoot, layerIndex, index) => {
+        // 创建节点
+        let newNode = this.createNode(node, parent, isRoot, layerIndex)
+        // 根节点定位在画布中心位置
+        if (isRoot) {
+          this.setNodeCenter(newNode)
+        } else {
+          // 非根节点
+          // 三级及以下节点以上级方向为准
+          if (parent._node.dir) {
+            newNode.dir = parent._node.dir
+          } else {
+            // 节点生长方向
+            newNode.dir =
+              index % 2 === 0
+                ? CONSTANTS.LAYOUT_GROW_DIR.TOP
+                : CONSTANTS.LAYOUT_GROW_DIR.BOTTOM
+          }
+          // 计算二级节点的top值
+          if (parent._node.isRoot) {
+            newNode.top = parent._node.top + parent._node.height
+          }
+        }
+        if (!node.data.expand) {
+          return true
+        }
+      },
+      null,
+      true,
+      0
+    )
+  }
+
+  //  遍历节点树计算节点的left、top
+  computedLeftTopValue() {
+    walk(
+      this.root,
+      null,
+      (node, parent, isRoot, layerIndex, index) => {
+        if (node.isRoot) {
+          let totalLeft = node.left + node.width
+          node.children.forEach(item => {
+            item.left = totalLeft
+            totalLeft += item.width
+          })
+        }
+        if (layerIndex === 1 && node.children) {
+          // 遍历二级节点的子节点
+          let startLeft = node.left + node.width * 0.5
+          let totalTop =
+            node.top +
+            node.height +
+            (this.getNodeActChildrenLength(node) > 0 ? node.expandBtnSize : 0)
+
+          node.children.forEach(item => {
+            item.left = startLeft
+            item.top =
+              totalTop +
+              (this.getNodeActChildrenLength(item) > 0 ? item.expandBtnSize : 0)
+            totalTop +=
+              item.height +
+              (this.getNodeActChildrenLength(item) > 0 ? item.expandBtnSize : 0)
+          })
+        }
+        if (layerIndex > 1 && node.children) {
+          // 遍历三级及以下节点的子节点
+          let startLeft = node.left + node.width * 0.5
+          let totalTop =
+            node.top -
+            (this.getNodeActChildrenLength(node) > 0 ? node.expandBtnSize : 0)
+          node.children.forEach(item => {
+            item.left = startLeft
+            item.top = totalTop - item.height
+            totalTop -=
+              item.height +
+              (this.getNodeActChildrenLength(item) > 0 ? item.expandBtnSize : 0)
+          })
+        }
+      },
+      null,
+      true
+    )
+  }
+
+  //  调整节点left、top
+  adjustLeftTopValue() {
+    walk(
+      this.root,
+      null,
+      (node, parent, isRoot, layerIndex) => {
+        if (!node.nodeData.data.expand) {
+          return
+        }
+        // 调整top
+        let len = node.children.length
+        // 调整三级节点的top
+        // if (layerIndex === 2 && len > 0) {
+        //   let totalHeight = node.children.reduce((h, item) => {
+        //     return h + item.height
+        //   }, 0)
+        //   this.updateBrothersTop(node, totalHeight)
+        // }
+        if (layerIndex > 2 && len > 0) {
+          let totalHeight = node.children.reduce((h, item) => {
+            return (
+              h +
+              item.height +
+              (this.getNodeActChildrenLength(item) > 0 ? item.expandBtnSize : 0)
+            )
+          }, 0)
+          this.updateBrothersTop(node, -totalHeight)
+        }
+      },
+      (node, parent) => {
+        // 将二级节点的子节点移到上方
+        if (parent && parent.isRoot) {
+          // 遍历二级节点的子节点
+          let totalHeight = 0
+          let totalHeight2 = 0
+          node.children.forEach(item => {
+            // 调整top
+            let hasChildren = this.getNodeActChildrenLength(item) > 0
+            let nodeTotalHeight = this.getNodeAreaHeight(item)
+            let offset =
+              hasChildren > 0
+                ? nodeTotalHeight -
+                  item.height -
+                  (hasChildren ? item.expandBtnSize : 0)
+                : 0
+            let _top = totalHeight + offset
+            item.top += _top
+            // 调整left
+            let offsetLeft =
+              (totalHeight2 + nodeTotalHeight) / Math.tan(degToRad(this.mindMap.opt.fishboneDeg))
+            item.left += offsetLeft
+            totalHeight += offset
+            totalHeight2 += nodeTotalHeight
+            // 同步更新后代节点
+            this.updateChildrenPro(item.children, {
+              top: _top,
+              left: offsetLeft
+            })
+          })
+        }
+        // 调整二级节点的子节点的left值
+        if (node.isRoot) {
+          let totalLeft = 0
+          node.children.forEach(item => {
+            item.left += totalLeft
+            this.updateChildren(item.children, 'left', totalLeft)
+            let { left, right } = this.getNodeBoundaries(item, 'h')
+            totalLeft += right - left
+          })
+        }
+      },
+      true
+    )
+  }
+
+  //  递归计算节点的宽度
+  getNodeAreaHeight(node) {
+    let totalHeight = 0
+    let loop = node => {
+      totalHeight +=
+        node.height +
+        (this.getNodeActChildrenLength(node) > 0 ? node.expandBtnSize : 0)
+      if (node.children.length) {
+        node.children.forEach(item => {
+          loop(item)
+        })
+      }
+    }
+    loop(node)
+    return totalHeight
+  }
+
+  //  调整兄弟节点的left
+  updateBrothersLeft(node) {
+    let childrenList = node.children
+    let totalAddWidth = 0
+    childrenList.forEach(item => {
+      item.left += totalAddWidth
+      if (item.children && item.children.length) {
+        this.updateChildren(item.children, 'left', totalAddWidth)
+      }
+      // let areaWidth = this.getNodeAreaWidth(item)
+      let { left, right } = this.getNodeBoundaries(item, 'h')
+      let areaWidth = right - left
+      let difference = areaWidth - item.width
+      if (difference > 0) {
+        totalAddWidth += difference
+      }
+    })
+  }
+
+  //  调整兄弟节点的top
+  updateBrothersTop(node, addHeight) {
+    if (node.parent && !node.parent.isRoot) {
+      let childrenList = node.parent.children
+      let index = childrenList.findIndex(item => {
+        return item === node
+      })
+      childrenList.forEach((item, _index) => {
+        if (item.hasCustomPosition()) {
+          // 适配自定义位置
+          return
+        }
+        let _offset = 0
+        // 下面的节点往下移
+        if (_index > index) {
+          _offset = addHeight
+        }
+        item.top += _offset
+        // 同步更新子节点的位置
+        if (item.children && item.children.length) {
+          this.updateChildren(item.children, 'top', _offset)
+        }
+      })
+      // 更新父节点的位置
+      this.updateBrothersTop(node.parent, node.layerIndex === 3 ? 0 : addHeight)
+    }
+  }
+
+  //  绘制连线，连接该节点到其子节点
+  renderLine(node, lines, style) {
+    if (node.children.length <= 0) {
+      return []
+    }
+    let { left, top, width, height, expandBtnSize } = node
+    let len = node.children.length
+    if (node.isRoot) {
+      // 当前节点是根节点
+      let prevBother = node
+      // 根节点的子节点是和根节点同一水平线排列
+      node.children.forEach((item, index) => {
+        let x1 = prevBother.left + prevBother.width
+        let x2 = item.left
+        let y = node.top + node.height / 2
+        let path = `M ${x1},${y} L ${x2},${y}`
+        lines[index].plot(path)
+        style && style(lines[index], item)
+        prevBother = item
+      })
+    } else {
+      // 当前节点为非根节点
+      let maxy = -Infinity
+      let miny = Infinity
+      let maxx = -Infinity
+      let x = node.left + node.width * 0.3
+      node.children.forEach((item, index) => {
+        if (item.left > maxx) {
+          maxx = item.left
+        }
+        let y = item.top + item.height / 2
+        if (y > maxy) {
+          maxy = y
+        }
+        if (y < miny) {
+          miny = y
+        }
+        // 水平线
+        if (node.layerIndex > 1) {
+          let path = `M ${x},${y} L ${item.left},${y}`
+          lines[index].plot(path)
+          style && style(lines[index], item)
+        }
+      })
+      // 竖线
+      if (len > 0) {
+        let line = this.draw.path()
+        expandBtnSize = len > 0 ? expandBtnSize : 0
+        let lineLength = maxx - node.left - node.width * 0.3
+        if (node.parent && node.parent.isRoot) {
+          line.plot(
+            `M ${x},${top + height} L ${x + lineLength},${
+              top + height + Math.tan(degToRad(this.mindMap.opt.fishboneDeg)) * lineLength
+            }`
+          )
+        } else {
+          line.plot(`M ${x},${top} L ${x},${miny}`)
+        }
+        node.style.line(line)
+        node._lines.push(line)
+        style && style(line, node)
+      }
+    }
+  }
+
+  //  渲染按钮
+  renderExpandBtn(node, btn) {
+    let { width, height, expandBtnSize, isRoot } = node
+    if (!isRoot) {
+      let { translateX, translateY } = btn.transform()
+      if (node.parent && node.parent.isRoot) {
+        btn.translate(
+          width * 0.3 - expandBtnSize / 2 - translateX,
+          height + expandBtnSize / 2 - translateY
+        )
+      } else {
+        btn.translate(
+          width * 0.3 - expandBtnSize / 2 - translateX,
+          -expandBtnSize / 2 - translateY
+        )
+      }
+    }
+  }
+
+  //  创建概要节点
+  renderGeneralization(node, gLine, gNode) {
+    let {
+      top,
+      bottom,
+      right,
+      generalizationLineMargin,
+      generalizationNodeMargin
+    } = this.getNodeBoundaries(node, 'h')
+    let x1 = right + generalizationLineMargin
+    let y1 = top
+    let x2 = right + generalizationLineMargin
+    let y2 = bottom
+    let cx = x1 + 20
+    let cy = y1 + (y2 - y1) / 2
+    let path = `M ${x1},${y1} Q ${cx},${cy} ${x2},${y2}`
+    gLine.plot(path)
+    gNode.left = right + generalizationNodeMargin
+    gNode.top = top + (bottom - top - gNode.height) / 2
+  }
+}
+
+export default Fishbone

simple-mind-map/src/layouts/FishboneTop.js

@@ -0,0 +1,350 @@
+import Base from './Base'
+import { walk, asyncRun } from '../utils'
+import { CONSTANTS } from '../utils/constant'
+
+const degToRad = deg => {
+  return (Math.PI / 180) * deg
+}
+
+//  上方鱼骨图
+class Fishbone extends Base {
+  //  构造函数
+  constructor(opt = {}) {
+    super(opt)
+  }
+
+  //  布局
+  doLayout(callback) {
+    let task = [
+      () => {
+        this.computedBaseValue()
+      },
+      () => {
+        this.computedLeftTopValue()
+      },
+      () => {
+        this.adjustLeftTopValue()
+      },
+      () => {
+        callback(this.root)
+      }
+    ]
+    asyncRun(task)
+  }
+
+  //  遍历数据创建节点、计算根节点的位置，计算根节点的子节点的top值
+  computedBaseValue() {
+    walk(
+      this.renderer.renderTree,
+      null,
+      (node, parent, isRoot, layerIndex, index) => {
+        // 创建节点
+        let newNode = this.createNode(node, parent, isRoot, layerIndex)
+        // 根节点定位在画布中心位置
+        if (isRoot) {
+          this.setNodeCenter(newNode)
+        } else {
+          // 非根节点
+          // 三级及以下节点以上级方向为准
+          if (parent._node.dir) {
+            newNode.dir = parent._node.dir
+          } else {
+            // 节点生长方向
+            newNode.dir =
+              index % 2 === 0
+                ? CONSTANTS.LAYOUT_GROW_DIR.TOP
+                : CONSTANTS.LAYOUT_GROW_DIR.BOTTOM
+          }
+          // 计算二级节点的top值
+          if (parent._node.isRoot) {
+            newNode.top = parent._node.top - newNode.height
+          }
+        }
+        if (!node.data.expand) {
+          return true
+        }
+      },
+      null,
+      true,
+      0
+    )
+  }
+
+  //  遍历节点树计算节点的left、top
+  computedLeftTopValue() {
+    walk(
+      this.root,
+      null,
+      (node, parent, isRoot, layerIndex, index) => {
+        if (node.isRoot) {
+          let totalLeft = node.left + node.width
+          node.children.forEach(item => {
+            item.left = totalLeft
+            totalLeft += item.width
+          })
+        }
+        if (layerIndex >= 1 && node.children) {
+          // 遍历三级及以下节点的子节点
+          let startLeft = node.left + node.width * 0.5
+          let totalTop =
+            node.top +
+            node.height +
+            (this.getNodeActChildrenLength(node) > 0 ? node.expandBtnSize : 0)
+          node.children.forEach(item => {
+            item.left = startLeft
+            item.top += totalTop
+            totalTop +=
+              item.height +
+              (this.getNodeActChildrenLength(item) > 0 ? item.expandBtnSize : 0)
+          })
+        }
+      },
+      null,
+      true
+    )
+  }
+
+  //  调整节点left、top
+  adjustLeftTopValue() {
+    walk(
+      this.root,
+      null,
+      (node, parent, isRoot, layerIndex) => {
+        if (!node.nodeData.data.expand) {
+          return
+        }
+        // 调整top
+        let len = node.children.length
+        // 调整三级及以下节点的top
+        if (parent && !parent.isRoot && len > 0) {
+          let totalHeight = node.children.reduce((h, item) => {
+            return (
+              h +
+              item.height +
+              (this.getNodeActChildrenLength(item) > 0 ? item.expandBtnSize : 0)
+            )
+          }, 0)
+          this.updateBrothersTop(node, totalHeight)
+        }
+      },
+      (node, parent) => {
+        // 将二级节点的子节点移到上方
+        if (parent && parent.isRoot) {
+          // 遍历二级节点的子节点
+          let totalHeight = 0
+          node.children.forEach(item => {
+            // 调整top
+            let nodeTotalHeight = this.getNodeAreaHeight(item)
+            let _top = item.top
+            item.top =
+              node.top - (item.top - node.top) - nodeTotalHeight + node.height
+            // 调整left
+            let offsetLeft =
+              (nodeTotalHeight + totalHeight) / Math.tan(degToRad(this.mindMap.opt.fishboneDeg))
+            item.left += offsetLeft
+            totalHeight += nodeTotalHeight
+            // 同步更新后代节点
+            this.updateChildrenPro(item.children, {
+              top: item.top - _top,
+              left: offsetLeft
+            })
+          })
+        }
+        // 调整二级节点的子节点的left值
+        if (node.isRoot) {
+          let totalLeft = 0
+          node.children.forEach(item => {
+            item.left += totalLeft
+            this.updateChildren(item.children, 'left', totalLeft)
+            let { left, right } = this.getNodeBoundaries(item, 'h')
+            totalLeft += right - left
+          })
+        }
+      },
+      true
+    )
+  }
+
+  //  递归计算节点的宽度
+  getNodeAreaHeight(node) {
+    let totalHeight = 0
+    let loop = node => {
+      totalHeight +=
+        node.height +
+        (this.getNodeActChildrenLength(node) > 0 ? node.expandBtnSize : 0)
+      if (node.children.length) {
+        node.children.forEach(item => {
+          loop(item)
+        })
+      }
+    }
+    loop(node)
+    return totalHeight
+  }
+
+  //  调整兄弟节点的left
+  updateBrothersLeft(node) {
+    let childrenList = node.children
+    let totalAddWidth = 0
+    childrenList.forEach(item => {
+      item.left += totalAddWidth
+      if (item.children && item.children.length) {
+        this.updateChildren(item.children, 'left', totalAddWidth)
+      }
+      // let areaWidth = this.getNodeAreaWidth(item)
+      let { left, right } = this.getNodeBoundaries(item, 'h')
+      let areaWidth = right - left
+      let difference = areaWidth - item.width
+      if (difference > 0) {
+        totalAddWidth += difference
+      }
+    })
+  }
+
+  //  调整兄弟节点的top
+  updateBrothersTop(node, addHeight) {
+    if (node.parent && !node.parent.isRoot) {
+      let childrenList = node.parent.children
+      let index = childrenList.findIndex(item => {
+        return item === node
+      })
+      childrenList.forEach((item, _index) => {
+        if (item.hasCustomPosition()) {
+          // 适配自定义位置
+          return
+        }
+        let _offset = 0
+        // 下面的节点往下移
+        if (_index > index) {
+          _offset = addHeight
+        }
+        item.top += _offset
+        // 同步更新子节点的位置
+        if (item.children && item.children.length) {
+          this.updateChildren(item.children, 'top', _offset)
+        }
+      })
+      // 更新父节点的位置
+      this.updateBrothersTop(node.parent, addHeight)
+    }
+  }
+
+  //  绘制连线，连接该节点到其子节点
+  renderLine(node, lines, style) {
+    if (node.children.length <= 0) {
+      return []
+    }
+    let { left, top, width, height, expandBtnSize } = node
+    let len = node.children.length
+    if (node.isRoot) {
+      // 当前节点是根节点
+      let prevBother = node
+      // 根节点的子节点是和根节点同一水平线排列
+      node.children.forEach((item, index) => {
+        let x1 = prevBother.left + prevBother.width
+        let x2 = item.left
+        let y = node.top + node.height / 2
+        let path = `M ${x1},${y} L ${x2},${y}`
+        lines[index].plot(path)
+        style && style(lines[index], item)
+        prevBother = item
+      })
+    } else {
+      // 当前节点为非根节点
+      let maxy = -Infinity
+      let miny = Infinity
+      let maxx = -Infinity
+      let x = node.left + node.width * 0.3
+      node.children.forEach((item, index) => {
+        if (item.left > maxx) {
+          maxx = item.left
+        }
+        let y = item.top + item.height / 2
+        if (y > maxy) {
+          maxy = y
+        }
+        if (y < miny) {
+          miny = y
+        }
+        // 水平线
+        if (node.layerIndex > 1) {
+          let path = `M ${x},${y} L ${item.left},${y}`
+          lines[index].plot(path)
+          style && style(lines[index], item)
+        }
+      })
+      // 竖线
+      if (len > 0) {
+        let line = this.draw.path()
+        expandBtnSize = len > 0 ? expandBtnSize : 0
+        let lineLength = maxx - node.left - node.width * 0.3
+        if (
+          node.parent &&
+          node.parent.isRoot &&
+          node.dir === CONSTANTS.LAYOUT_GROW_DIR.TOP
+        ) {
+          line.plot(
+            `M ${x},${top} L ${x + lineLength},${
+              top - Math.tan(degToRad(this.mindMap.opt.fishboneDeg)) * lineLength
+            }`
+          )
+        } else {
+          if (node.parent && node.parent.isRoot) {
+            line.plot(
+              `M ${x},${top} L ${x + lineLength},${
+                top - Math.tan(degToRad(this.mindMap.opt.fishboneDeg)) * lineLength
+              }`
+            )
+          } else {
+            line.plot(`M ${x},${top + height + expandBtnSize} L ${x},${maxy}`)
+          }
+        }
+        node.style.line(line)
+        node._lines.push(line)
+        style && style(line, node)
+      }
+    }
+  }
+
+  //  渲染按钮
+  renderExpandBtn(node, btn) {
+    let { width, height, expandBtnSize, isRoot } = node
+    if (!isRoot) {
+      let { translateX, translateY } = btn.transform()
+      if (node.parent && node.parent.isRoot) {
+        btn.translate(
+          width * 0.3 - expandBtnSize / 2 - translateX,
+          -expandBtnSize / 2 - translateY
+        )
+      } else {
+        btn.translate(
+          width * 0.3 - expandBtnSize / 2 - translateX,
+          height + expandBtnSize / 2 - translateY
+        )
+      }
+    }
+  }
+
+  //  创建概要节点
+  renderGeneralization(node, gLine, gNode) {
+    let {
+      top,
+      bottom,
+      right,
+      generalizationLineMargin,
+      generalizationNodeMargin
+    } = this.getNodeBoundaries(node, 'h')
+    let x1 = right + generalizationLineMargin
+    let y1 = top
+    let x2 = right + generalizationLineMargin
+    let y2 = bottom
+    let cx = x1 + 20
+    let cy = y1 + (y2 - y1) / 2
+    let path = `M ${x1},${y1} Q ${cx},${cy} ${x2},${y2}`
+    gLine.plot(path)
+    gNode.left = right + generalizationNodeMargin
+    gNode.top = top + (bottom - top - gNode.height) / 2
+  }
+}
+
+export default Fishbone

simple-mind-map/src/layouts/LogicalStructure.js

@@ -0,0 +1,291 @@
+import Base from './Base'
+import { walk, asyncRun } from '../utils'
+
+//  逻辑结构图
+class LogicalStructure extends Base {
+  //  构造函数
+  constructor(opt = {}) {
+    super(opt)
+  }
+
+  //  布局
+  doLayout(callback) {
+    let task = [
+      () => {
+        this.computedBaseValue()
+      },
+      () => {
+        this.computedTopValue()
+      },
+      () => {
+        this.adjustTopValue()
+      },
+      () => {
+        callback(this.root)
+      }
+    ]
+    asyncRun(task)
+  }
+
+  //  遍历数据计算节点的left、width、height
+  computedBaseValue() {
+    walk(
+      this.renderer.renderTree,
+      null,
+      (cur, parent, isRoot, layerIndex) => {
+        let newNode = this.createNode(cur, parent, isRoot, layerIndex)
+        // 根节点定位在画布中心位置
+        if (isRoot) {
+          this.setNodeCenter(newNode)
+        } else {
+          // 非根节点
+          // 定位到父节点右侧
+          newNode.left =
+            parent._node.left + parent._node.width + this.getMarginX(layerIndex)
+        }
+        if (!cur.data.expand) {
+          return true
+        }
+      },
+      (cur, parent, isRoot, layerIndex) => {
+        // 返回时计算节点的areaHeight，也就是子节点所占的高度之和，包括外边距
+        let len = cur.data.expand === false ? 0 : cur._node.children.length
+        cur._node.childrenAreaHeight = len
+          ? cur._node.children.reduce((h, item) => {
+              return h + item.height
+            }, 0) +
+            (len + 1) * this.getMarginY(layerIndex + 1)
+          : 0
+      },
+      true,
+      0
+    )
+  }
+
+  //  遍历节点树计算节点的top
+  computedTopValue() {
+    walk(
+      this.root,
+      null,
+      (node, parent, isRoot, layerIndex) => {
+        if (
+          node.nodeData.data.expand &&
+          node.children &&
+          node.children.length
+        ) {
+          let marginY = this.getMarginY(layerIndex + 1)
+          // 第一个子节点的top值 = 该节点中心的top值 - 子节点的高度之和的一半
+          let top = node.top + node.height / 2 - node.childrenAreaHeight / 2
+          let totalTop = top + marginY
+          node.children.forEach(cur => {
+            cur.top = totalTop
+            totalTop += cur.height + marginY
+          })
+        }
+      },
+      null,
+      true
+    )
+  }
+
+  //  调整节点top
+  adjustTopValue() {
+    walk(
+      this.root,
+      null,
+      (node, parent, isRoot, layerIndex) => {
+        if (!node.nodeData.data.expand) {
+          return
+        }
+        // 判断子节点所占的高度之和是否大于该节点自身，大于则需要调整位置
+        let difference =
+          node.childrenAreaHeight -
+          this.getMarginY(layerIndex + 1) * 2 -
+          node.height
+        if (difference > 0) {
+          this.updateBrothers(node, difference / 2)
+        }
+      },
+      null,
+      true
+    )
+  }
+
+  //  更新兄弟节点的top
+  updateBrothers(node, addHeight) {
+    if (node.parent) {
+      let childrenList = node.parent.children
+      let index = childrenList.findIndex(item => {
+        return item === node
+      })
+      childrenList.forEach((item, _index) => {
+        if (item === node || item.hasCustomPosition()) {
+          // 适配自定义位置
+          return
+        }
+        let _offset = 0
+        // 上面的节点往上移
+        if (_index < index) {
+          _offset = -addHeight
+        } else if (_index > index) {
+          // 下面的节点往下移
+          _offset = addHeight
+        }
+        item.top += _offset
+        // 同步更新子节点的位置
+        if (item.children && item.children.length) {
+          this.updateChildren(item.children, 'top', _offset)
+        }
+      })
+      // 更新父节点的位置
+      this.updateBrothers(node.parent, addHeight)
+    }
+  }
+
+  //  绘制连线，连接该节点到其子节点
+  renderLine(node, lines, style, lineStyle) {
+    if (lineStyle === 'curve') {
+      this.renderLineCurve(node, lines, style)
+    } else if (lineStyle === 'direct') {
+      this.renderLineDirect(node, lines, style)
+    } else {
+      this.renderLineStraight(node, lines, style)
+    }
+  }
+
+  //  直线风格连线
+  renderLineStraight(node, lines, style) {
+    if (node.children.length <= 0) {
+      return []
+    }
+    let { left, top, width, height, expandBtnSize } = node
+    if (!this.mindMap.opt.alwaysShowExpandBtn) {
+      expandBtnSize = 0
+    }
+    let marginX = this.getMarginX(node.layerIndex + 1)
+    let s1 = (marginX - expandBtnSize) * 0.6
+    let nodeUseLineStyle = this.mindMap.themeConfig.nodeUseLineStyle
+    node.children.forEach((item, index) => {
+      let x1 =
+        node.layerIndex === 0 ? left + width : left + width + expandBtnSize
+      let y1 = top + height / 2
+      let x2 = item.left
+      let y2 = item.top + item.height / 2
+      // 节点使用横线风格，需要额外渲染横线
+      let nodeUseLineStyleOffset = nodeUseLineStyle ? item.width : 0
+      y1 = nodeUseLineStyle && !node.isRoot ? y1 + height / 2 : y1
+      y2 = nodeUseLineStyle ? y2 + item.height / 2 : y2
+      let path = `M ${x1},${y1} L ${x1 + s1},${y1} L ${x1 + s1},${y2} L ${
+        x2 + nodeUseLineStyleOffset
+      },${y2}`
+      lines[index].plot(path)
+      style && style(lines[index], item)
+    })
+  }
+
+  //  直连风格
+  renderLineDirect(node, lines, style) {
+    if (node.children.length <= 0) {
+      return []
+    }
+    let { left, top, width, height, expandBtnSize } = node
+    if (!this.mindMap.opt.alwaysShowExpandBtn) {
+      expandBtnSize = 0
+    }
+    let nodeUseLineStyle = this.mindMap.themeConfig.nodeUseLineStyle
+    node.children.forEach((item, index) => {
+      let x1 =
+        node.layerIndex === 0 ? left + width / 2 : left + width + expandBtnSize
+      let y1 = top + height / 2
+      let x2 = item.left
+      let y2 = item.top + item.height / 2
+      y1 = nodeUseLineStyle && !node.isRoot ? y1 + height / 2 : y1
+      y2 = nodeUseLineStyle ? y2 + item.height / 2 : y2
+      // 节点使用横线风格，需要额外渲染横线
+      let nodeUseLineStylePath = nodeUseLineStyle
+        ? ` L ${item.left + item.width},${y2}`
+        : ''
+      let path = `M ${x1},${y1} L ${x2},${y2}` + nodeUseLineStylePath
+      lines[index].plot(path)
+      style && style(lines[index], item)
+    })
+  }
+
+  //  曲线风格连线
+  renderLineCurve(node, lines, style) {
+    if (node.children.length <= 0) {
+      return []
+    }
+    let { left, top, width, height, expandBtnSize } = node
+    if (!this.mindMap.opt.alwaysShowExpandBtn) {
+      expandBtnSize = 0
+    }
+    let nodeUseLineStyle = this.mindMap.themeConfig.nodeUseLineStyle
+    node.children.forEach((item, index) => {
+      let x1 =
+        node.layerIndex === 0 ? left + width / 2 : left + width + expandBtnSize
+      let y1 = top + height / 2
+      let x2 = item.left
+      let y2 = item.top + item.height / 2
+      let path = ''
+      y1 = nodeUseLineStyle && !node.isRoot ? y1 + height / 2 : y1
+      y2 = nodeUseLineStyle ? y2 + item.height / 2 : y2
+      // 节点使用横线风格，需要额外渲染横线
+      let nodeUseLineStylePath = nodeUseLineStyle
+        ? ` L ${item.left + item.width},${y2}`
+        : ''
+      if (node.isRoot) {
+        path = this.quadraticCurvePath(x1, y1, x2, y2) + nodeUseLineStylePath
+      } else {
+        path = this.cubicBezierPath(x1, y1, x2, y2) + nodeUseLineStylePath
+      }
+      lines[index].plot(path)
+      style && style(lines[index], item)
+    })
+  }
+
+  //  渲染按钮
+  renderExpandBtn(node, btn) {
+    let { width, height } = node
+    let { translateX, translateY } = btn.transform()
+    // 节点使用横线风格，需要调整展开收起按钮位置
+    let nodeUseLineStyleOffset = this.mindMap.themeConfig.nodeUseLineStyle
+      ? height / 2
+      : 0
+    // 位置没有变化则返回
+    let _x = width
+    let _y = height / 2 + nodeUseLineStyleOffset
+    if (_x === translateX && _y === translateY) {
+      return
+    }
+    btn.translate(_x - translateX, _y - translateY)
+  }
+
+  //  创建概要节点
+  renderGeneralization(node, gLine, gNode) {
+    let {
+      top,
+      bottom,
+      right,
+      generalizationLineMargin,
+      generalizationNodeMargin
+    } = this.getNodeBoundaries(node, 'h')
+    let x1 = right + generalizationLineMargin
+    let y1 = top
+    let x2 = right + generalizationLineMargin
+    let y2 = bottom
+    let cx = x1 + 20
+    let cy = y1 + (y2 - y1) / 2
+    let path = `M ${x1},${y1} Q ${cx},${cy} ${x2},${y2}`
+    gLine.plot(path)
+    gNode.left = right + generalizationNodeMargin
+    gNode.top = top + (bottom - top - gNode.height) / 2
+  }
+
+  // 渲染展开收起按钮的隐藏占位元素
+  renderExpandBtnRect(rect, expandBtnSize, width, height, node) {
+    rect.size(expandBtnSize, height).x(width).y(0)
+  }
+}
+
+export default LogicalStructure

simple-mind-map/src/layouts/MindMap.js

@@ -0,0 +1,387 @@
+import Base from './Base'
+import { walk, asyncRun } from '../utils'
+import { CONSTANTS } from '../constants/constant'
+
+//  思维导图
+class MindMap extends Base {
+  //  构造函数
+  // 在逻辑结构图的基础上增加一个变量来记录生长方向，向左还是向右，同时在计算left的时候根据方向来计算、调整top时只考虑同方向的节点即可
+  constructor(opt = {}) {
+    super(opt)
+  }
+
+  //  布局
+  doLayout(callback) {
+    let task = [
+      () => {
+        this.computedBaseValue()
+      },
+      () => {
+        this.computedTopValue()
+      },
+      () => {
+        this.adjustTopValue()
+      },
+      () => {
+        callback(this.root)
+      }
+    ]
+    asyncRun(task)
+  }
+
+  //  遍历数据计算节点的left、width、height
+  computedBaseValue() {
+    walk(
+      this.renderer.renderTree,
+      null,
+      (cur, parent, isRoot, layerIndex, index) => {
+        let newNode = this.createNode(cur, parent, isRoot, layerIndex)
+        // 根节点定位在画布中心位置
+        if (isRoot) {
+          this.setNodeCenter(newNode)
+        } else {
+          // 非根节点
+          // 三级及以下节点以上级为准
+          if (parent._node.dir) {
+            newNode.dir = parent._node.dir
+          } else {
+            // 节点生长方向
+            newNode.dir =
+              index % 2 === 0
+                ? CONSTANTS.LAYOUT_GROW_DIR.RIGHT
+                : CONSTANTS.LAYOUT_GROW_DIR.LEFT
+          }
+          // 根据生长方向定位到父节点的左侧或右侧
+          newNode.left =
+            newNode.dir === CONSTANTS.LAYOUT_GROW_DIR.RIGHT
+              ? parent._node.left +
+                parent._node.width +
+                this.getMarginX(layerIndex)
+              : parent._node.left - this.getMarginX(layerIndex) - newNode.width
+        }
+        if (!cur.data.expand) {
+          return true
+        }
+      },
+      (cur, parent, isRoot, layerIndex) => {
+        // 返回时计算节点的leftChildrenAreaHeight和rightChildrenAreaHeight，也就是左侧和右侧子节点所占的高度之和，包括外边距
+        if (!cur.data.expand) {
+          cur._node.leftChildrenAreaHeight = 0
+          cur._node.rightChildrenAreaHeight = 0
+          return
+        }
+        // 理论上只有根节点是存在两个方向的子节点的，其他节点的子节点一定全都是同方向，但是为了逻辑统一，就不按特殊处理的方式来写了
+        let leftLen = 0
+        let rightLen = 0
+        let leftChildrenAreaHeight = 0
+        let rightChildrenAreaHeight = 0
+        cur._node.children.forEach(item => {
+          if (item.dir === CONSTANTS.LAYOUT_GROW_DIR.LEFT) {
+            leftLen++
+            leftChildrenAreaHeight += item.height
+          } else {
+            rightLen++
+            rightChildrenAreaHeight += item.height
+          }
+        })
+        cur._node.leftChildrenAreaHeight =
+          leftChildrenAreaHeight +
+          (leftLen + 1) * this.getMarginY(layerIndex + 1)
+        cur._node.rightChildrenAreaHeight =
+          rightChildrenAreaHeight +
+          (rightLen + 1) * this.getMarginY(layerIndex + 1)
+      },
+      true,
+      0
+    )
+  }
+
+  //  遍历节点树计算节点的top
+  computedTopValue() {
+    walk(
+      this.root,
+      null,
+      (node, parent, isRoot, layerIndex) => {
+        if (
+          node.nodeData.data.expand &&
+          node.children &&
+          node.children.length
+        ) {
+          let marginY = this.getMarginY(layerIndex + 1)
+          let baseTop = node.top + node.height / 2 + marginY
+          // 第一个子节点的top值 = 该节点中心的top值 - 子节点的高度之和的一半
+          let leftTotalTop = baseTop - node.leftChildrenAreaHeight / 2
+          let rightTotalTop = baseTop - node.rightChildrenAreaHeight / 2
+          node.children.forEach(cur => {
+            if (cur.dir === CONSTANTS.LAYOUT_GROW_DIR.LEFT) {
+              cur.top = leftTotalTop
+              leftTotalTop += cur.height + marginY
+            } else {
+              cur.top = rightTotalTop
+              rightTotalTop += cur.height + marginY
+            }
+          })
+        }
+      },
+      null,
+      true
+    )
+  }
+
+  //  调整节点top
+  adjustTopValue() {
+    walk(
+      this.root,
+      null,
+      (node, parent, isRoot, layerIndex) => {
+        if (!node.nodeData.data.expand) {
+          return
+        }
+        // 判断子节点所占的高度之和是否大于该节点自身，大于则需要调整位置
+        let base = this.getMarginY(layerIndex + 1) * 2 + node.height
+        let leftDifference = node.leftChildrenAreaHeight - base
+        let rightDifference = node.rightChildrenAreaHeight - base
+        if (leftDifference > 0 || rightDifference > 0) {
+          this.updateBrothers(node, leftDifference / 2, rightDifference / 2)
+        }
+      },
+      null,
+      true
+    )
+  }
+
+  //  更新兄弟节点的top
+  updateBrothers(node, leftAddHeight, rightAddHeight) {
+    if (node.parent) {
+      // 过滤出和自己同方向的节点
+      let childrenList = node.parent.children.filter(item => {
+        return item.dir === node.dir
+      })
+      let index = childrenList.findIndex(item => {
+        return item === node
+      })
+      childrenList.forEach((item, _index) => {
+        if (item.hasCustomPosition()) {
+          // 适配自定义位置
+          return
+        }
+        let _offset = 0
+        let addHeight =
+          item.dir === CONSTANTS.LAYOUT_GROW_DIR.LEFT
+            ? leftAddHeight
+            : rightAddHeight
+        // 上面的节点往上移
+        if (_index < index) {
+          _offset = -addHeight
+        } else if (_index > index) {
+          // 下面的节点往下移
+          _offset = addHeight
+        }
+        item.top += _offset
+        // 同步更新子节点的位置
+        if (item.children && item.children.length) {
+          this.updateChildren(item.children, 'top', _offset)
+        }
+      })
+      // 更新父节点的位置
+      this.updateBrothers(node.parent, leftAddHeight, rightAddHeight)
+    }
+  }
+
+  //  绘制连线，连接该节点到其子节点
+  renderLine(node, lines, style, lineStyle) {
+    if (lineStyle === 'curve') {
+      this.renderLineCurve(node, lines, style)
+    } else if (lineStyle === 'direct') {
+      this.renderLineDirect(node, lines, style)
+    } else {
+      this.renderLineStraight(node, lines, style)
+    }
+  }
+
+  //  直线风格连线
+  renderLineStraight(node, lines, style) {
+    if (node.children.length <= 0) {
+      return []
+    }
+    let { left, top, width, height, expandBtnSize } = node
+    if (!this.mindMap.opt.alwaysShowExpandBtn) {
+      expandBtnSize = 0
+    }
+    let marginX = this.getMarginX(node.layerIndex + 1)
+    let s1 = (marginX - expandBtnSize) * 0.6
+    let nodeUseLineStyle = this.mindMap.themeConfig.nodeUseLineStyle
+    node.children.forEach((item, index) => {
+      let x1 = 0
+      let _s = 0
+      // 节点使用横线风格，需要额外渲染横线
+      let nodeUseLineStyleOffset = nodeUseLineStyle ? item.width : 0
+      if (item.dir === CONSTANTS.LAYOUT_GROW_DIR.LEFT) {
+        _s = -s1
+        x1 = node.layerIndex === 0 ? left : left - expandBtnSize
+        nodeUseLineStyleOffset = -nodeUseLineStyleOffset
+      } else {
+        _s = s1
+        x1 = node.layerIndex === 0 ? left + width : left + width + expandBtnSize
+      }
+      let y1 = top + height / 2
+      let x2 =
+        item.dir === CONSTANTS.LAYOUT_GROW_DIR.LEFT
+          ? item.left + item.width
+          : item.left
+      let y2 = item.top + item.height / 2
+      y1 = nodeUseLineStyle && !node.isRoot ? y1 + height / 2 : y1
+      y2 = nodeUseLineStyle ? y2 + item.height / 2 : y2
+      let path = `M ${x1},${y1} L ${x1 + _s},${y1} L ${x1 + _s},${y2} L ${
+        x2 + nodeUseLineStyleOffset
+      },${y2}`
+      lines[index].plot(path)
+      style && style(lines[index], item)
+    })
+  }
+
+  //  直连风格
+  renderLineDirect(node, lines, style) {
+    if (node.children.length <= 0) {
+      return []
+    }
+    let { left, top, width, height, expandBtnSize } = node
+    if (!this.mindMap.opt.alwaysShowExpandBtn) {
+      expandBtnSize = 0
+    }
+    let nodeUseLineStyle = this.mindMap.themeConfig.nodeUseLineStyle
+    node.children.forEach((item, index) => {
+      let x1 =
+        node.layerIndex === 0
+          ? left + width / 2
+          : item.dir === CONSTANTS.LAYOUT_GROW_DIR.LEFT
+          ? left - expandBtnSize
+          : left + width + expandBtnSize
+      let y1 = top + height / 2
+      let x2 =
+        item.dir === CONSTANTS.LAYOUT_GROW_DIR.LEFT
+          ? item.left + item.width
+          : item.left
+      let y2 = item.top + item.height / 2
+      y1 = nodeUseLineStyle && !node.isRoot ? y1 + height / 2 : y1
+      y2 = nodeUseLineStyle ? y2 + item.height / 2 : y2
+      // 节点使用横线风格，需要额外渲染横线
+      let nodeUseLineStylePath = ''
+      if (nodeUseLineStyle) {
+        if (item.dir === CONSTANTS.LAYOUT_GROW_DIR.LEFT) {
+          nodeUseLineStylePath = ` L ${item.left},${y2}`
+        } else {
+          nodeUseLineStylePath = ` L ${item.left + item.width},${y2}`
+        }
+      }
+      let path = `M ${x1},${y1} L ${x2},${y2}` + nodeUseLineStylePath
+      lines[index].plot(path)
+      style && style(lines[index], item)
+    })
+  }
+
+  //  曲线风格连线
+  renderLineCurve(node, lines, style) {
+    if (node.children.length <= 0) {
+      return []
+    }
+    let { left, top, width, height, expandBtnSize } = node
+    if (!this.mindMap.opt.alwaysShowExpandBtn) {
+      expandBtnSize = 0
+    }
+    let nodeUseLineStyle = this.mindMap.themeConfig.nodeUseLineStyle
+    node.children.forEach((item, index) => {
+      let x1 =
+        node.layerIndex === 0
+          ? left + width / 2
+          : item.dir === CONSTANTS.LAYOUT_GROW_DIR.LEFT
+          ? left - expandBtnSize
+          : left + width + expandBtnSize
+      let y1 = top + height / 2
+      let x2 =
+        item.dir === CONSTANTS.LAYOUT_GROW_DIR.LEFT
+          ? item.left + item.width
+          : item.left
+      let y2 = item.top + item.height / 2
+      let path = ''
+      y1 = nodeUseLineStyle && !node.isRoot ? y1 + height / 2 : y1
+      y2 = nodeUseLineStyle ? y2 + item.height / 2 : y2
+      // 节点使用横线风格，需要额外渲染横线
+      let nodeUseLineStylePath = ''
+      if (this.mindMap.themeConfig.nodeUseLineStyle) {
+        if (item.dir === CONSTANTS.LAYOUT_GROW_DIR.LEFT) {
+          nodeUseLineStylePath = ` L ${item.left},${y2}`
+        } else {
+          nodeUseLineStylePath = ` L ${item.left + item.width},${y2}`
+        }
+      }
+      if (node.isRoot) {
+        path = this.quadraticCurvePath(x1, y1, x2, y2) + nodeUseLineStylePath
+      } else {
+        path = this.cubicBezierPath(x1, y1, x2, y2) + nodeUseLineStylePath
+      }
+      lines[index].plot(path)
+      style && style(lines[index], item)
+    })
+  }
+
+  //  渲染按钮
+  renderExpandBtn(node, btn) {
+    let { width, height, expandBtnSize } = node
+    let { translateX, translateY } = btn.transform()
+    // 节点使用横线风格，需要调整展开收起按钮位置
+    let nodeUseLineStyleOffset = this.mindMap.themeConfig.nodeUseLineStyle
+      ? height / 2
+      : 0
+    // 位置没有变化则返回
+    let _x =
+      node.dir === CONSTANTS.LAYOUT_GROW_DIR.LEFT ? 0 - expandBtnSize : width
+    let _y = height / 2 + nodeUseLineStyleOffset
+    if (_x === translateX && _y === translateY) {
+      return
+    }
+    let x = _x - translateX
+    let y = _y - translateY
+    btn.translate(x, y)
+  }
+
+  //  创建概要节点
+  renderGeneralization(node, gLine, gNode) {
+    let isLeft = node.dir === CONSTANTS.LAYOUT_GROW_DIR.LEFT
+    let {
+      top,
+      bottom,
+      left,
+      right,
+      generalizationLineMargin,
+      generalizationNodeMargin
+    } = this.getNodeBoundaries(node, 'h', isLeft)
+    let x = isLeft
+      ? left - generalizationLineMargin
+      : right + generalizationLineMargin
+    let x1 = x
+    let y1 = top
+    let x2 = x
+    let y2 = bottom
+    let cx = x1 + (isLeft ? -20 : 20)
+    let cy = y1 + (y2 - y1) / 2
+    let path = `M ${x1},${y1} Q ${cx},${cy} ${x2},${y2}`
+    gLine.plot(path)
+    gNode.left =
+      x +
+      (isLeft ? -generalizationNodeMargin : generalizationNodeMargin) -
+      (isLeft ? gNode.width : 0)
+    gNode.top = top + (bottom - top - gNode.height) / 2
+  }
+
+  // 渲染展开收起按钮的隐藏占位元素
+  renderExpandBtnRect(rect, expandBtnSize, width, height, node) {
+    if (node.dir === CONSTANTS.LAYOUT_GROW_DIR.LEFT) {
+      rect.size(expandBtnSize, height).x(-expandBtnSize).y(0)
+    } else {
+      rect.size(expandBtnSize, height).x(width).y(0)
+    }
+  }
+}
+
+export default MindMap

simple-mind-map/src/layouts/OrganizationStructure.js

@@ -0,0 +1,265 @@
+import Base from './Base'
+import { walk, asyncRun } from '../utils'
+
+//  组织结构图
+// 和逻辑结构图基本一样，只是方向变成向下生长，所以先计算节点的top，后计算节点的left、最后调整节点的left即可
+class OrganizationStructure extends Base {
+  //  构造函数
+  constructor(opt = {}) {
+    super(opt)
+  }
+
+  //  布局
+  doLayout(callback) {
+    let task = [
+      () => {
+        this.computedBaseValue()
+      },
+      () => {
+        this.computedLeftValue()
+      },
+      () => {
+        this.adjustLeftValue()
+      },
+      () => {
+        callback(this.root)
+      }
+    ]
+    asyncRun(task)
+  }
+
+  //  遍历数据计算节点的left、width、height
+  computedBaseValue() {
+    walk(
+      this.renderer.renderTree,
+      null,
+      (cur, parent, isRoot, layerIndex) => {
+        let newNode = this.createNode(cur, parent, isRoot, layerIndex)
+        // 根节点定位在画布中心位置
+        if (isRoot) {
+          this.setNodeCenter(newNode)
+        } else {
+          // 非根节点
+          // 定位到父节点下方
+          newNode.top =
+            parent._node.top + parent._node.height + this.getMarginX(layerIndex)
+        }
+        if (!cur.data.expand) {
+          return true
+        }
+      },
+      (cur, parent, isRoot, layerIndex) => {
+        // 返回时计算节点的areaWidth，也就是子节点所占的宽度之和，包括外边距
+        let len = cur.data.expand === false ? 0 : cur._node.children.length
+        cur._node.childrenAreaWidth = len
+          ? cur._node.children.reduce((h, item) => {
+              return h + item.width
+            }, 0) +
+            (len + 1) * this.getMarginY(layerIndex + 1)
+          : 0
+      },
+      true,
+      0
+    )
+  }
+
+  //  遍历节点树计算节点的left
+  computedLeftValue() {
+    walk(
+      this.root,
+      null,
+      (node, parent, isRoot, layerIndex) => {
+        if (
+          node.nodeData.data.expand &&
+          node.children &&
+          node.children.length
+        ) {
+          let marginX = this.getMarginY(layerIndex + 1)
+          // 第一个子节点的left值 = 该节点中心的left值 - 子节点的宽度之和的一半
+          let left = node.left + node.width / 2 - node.childrenAreaWidth / 2
+          let totalLeft = left + marginX
+          node.children.forEach(cur => {
+            cur.left = totalLeft
+            totalLeft += cur.width + marginX
+          })
+        }
+      },
+      null,
+      true
+    )
+  }
+
+  //  调整节点left
+  adjustLeftValue() {
+    walk(
+      this.root,
+      null,
+      (node, parent, isRoot, layerIndex) => {
+        if (!node.nodeData.data.expand) {
+          return
+        }
+        // 判断子节点所占的宽度之和是否大于该节点自身，大于则需要调整位置
+        let difference =
+          node.childrenAreaWidth -
+          this.getMarginY(layerIndex + 1) * 2 -
+          node.width
+        if (difference > 0) {
+          this.updateBrothers(node, difference / 2)
+        }
+      },
+      null,
+      true
+    )
+  }
+
+  //  更新兄弟节点的left
+  updateBrothers(node, addWidth) {
+    if (node.parent) {
+      let childrenList = node.parent.children
+      let index = childrenList.findIndex(item => {
+        return item === node
+      })
+      childrenList.forEach((item, _index) => {
+        if (item.hasCustomPosition()) {
+          // 适配自定义位置
+          return
+        }
+        let _offset = 0
+        // 上面的节点往上移
+        if (_index < index) {
+          _offset = -addWidth
+        } else if (_index > index) {
+          // 下面的节点往下移
+          _offset = addWidth
+        }
+        item.left += _offset
+        // 同步更新子节点的位置
+        if (item.children && item.children.length) {
+          this.updateChildren(item.children, 'left', _offset)
+        }
+      })
+      // 更新父节点的位置
+      this.updateBrothers(node.parent, addWidth)
+    }
+  }
+
+  //  绘制连线，连接该节点到其子节点
+  renderLine(node, lines, style, lineStyle) {
+    if (lineStyle === 'direct') {
+      this.renderLineDirect(node, lines, style)
+    } else {
+      this.renderLineStraight(node, lines, style)
+    }
+  }
+
+  //  直连风格
+  renderLineDirect(node, lines, style) {
+    if (node.children.length <= 0) {
+      return []
+    }
+    let { left, top, width, height } = node
+    let x1 = left + width / 2
+    let y1 = top + height
+    node.children.forEach((item, index) => {
+      let x2 = item.left + item.width / 2
+      let y2 = item.top
+      // 节点使用横线风格，需要额外渲染横线
+      let nodeUseLineStylePath = this.mindMap.themeConfig.nodeUseLineStyle
+        ? ` L ${item.left},${y2} L ${item.left + item.width},${y2}`
+        : ''
+      let path = `M ${x1},${y1} L ${x2},${y2}` + nodeUseLineStylePath
+      lines[index].plot(path)
+      style && style(lines[index], item)
+    })
+  }
+
+  //  直线风格连线
+  renderLineStraight(node, lines, style) {
+    if (node.children.length <= 0) {
+      return []
+    }
+    let { left, top, width, height, expandBtnSize, isRoot } = node
+    if (!this.mindMap.opt.alwaysShowExpandBtn) {
+      expandBtnSize = 0
+    }
+    let x1 = left + width / 2
+    let y1 = top + height
+    let marginX = this.getMarginX(node.layerIndex + 1)
+    let s1 = marginX * 0.7
+    let minx = Infinity
+    let maxx = -Infinity
+    let len = node.children.length
+    node.children.forEach((item, index) => {
+      let x2 = item.left + item.width / 2
+      let y2 = y1 + s1 > item.top ? item.top + item.height : item.top
+      if (x2 < minx) {
+        minx = x2
+      }
+      if (x2 > maxx) {
+        maxx = x2
+      }
+      // 节点使用横线风格，需要额外渲染横线
+      let nodeUseLineStylePath = this.mindMap.themeConfig.nodeUseLineStyle
+        ? ` L ${item.left},${y2} L ${item.left + item.width},${y2}`
+        : ''
+      let path = `M ${x2},${y1 + s1} L ${x2},${y2}` + nodeUseLineStylePath
+      lines[index].plot(path)
+      style && style(lines[index], item)
+    })
+    minx = Math.min(x1, minx)
+    maxx = Math.max(x1, maxx)
+    // 父节点的竖线
+    let line1 = this.draw.path()
+    node.style.line(line1)
+    expandBtnSize = len > 0 && !isRoot ? expandBtnSize : 0
+    line1.plot(`M ${x1},${y1 + expandBtnSize} L ${x1},${y1 + s1}`)
+    node._lines.push(line1)
+    style && style(line1, node)
+    // 水平线
+    if (len > 0) {
+      let lin2 = this.draw.path()
+      node.style.line(lin2)
+      lin2.plot(`M ${minx},${y1 + s1} L ${maxx},${y1 + s1}`)
+      node._lines.push(lin2)
+      style && style(lin2, node)
+    }
+  }
+
+  //  渲染按钮
+  renderExpandBtn(node, btn) {
+    let { width, height, expandBtnSize } = node
+    let { translateX, translateY } = btn.transform()
+    btn.translate(
+      width / 2 - expandBtnSize / 2 - translateX,
+      height + expandBtnSize / 2 - translateY
+    )
+  }
+
+  //  创建概要节点
+  renderGeneralization(node, gLine, gNode) {
+    let {
+      bottom,
+      left,
+      right,
+      generalizationLineMargin,
+      generalizationNodeMargin
+    } = this.getNodeBoundaries(node, 'v')
+    let x1 = left
+    let y1 = bottom + generalizationLineMargin
+    let x2 = right
+    let y2 = bottom + generalizationLineMargin
+    let cx = x1 + (x2 - x1) / 2
+    let cy = y1 + 20
+    let path = `M ${x1},${y1} Q ${cx},${cy} ${x2},${y2}`
+    gLine.plot(path)
+    gNode.top = bottom + generalizationNodeMargin
+    gNode.left = left + (right - left - gNode.width) / 2
+  }
+
+  // 渲染展开收起按钮的隐藏占位元素
+  renderExpandBtnRect(rect, expandBtnSize, width, height, node) {
+    rect.size(width, expandBtnSize).x(0).y(height)
+  }
+}
+
+export default OrganizationStructure

simple-mind-map/src/layouts/Timeline.js

@@ -0,0 +1,363 @@
+import Base from './Base'
+import { walk, asyncRun } from '../utils'
+import { CONSTANTS } from '../constants/constant'
+
+//  时间轴
+class Timeline extends Base {
+  //  构造函数
+  constructor(opt = {}, layout) {
+    super(opt)
+    this.layout = layout
+  }
+
+  //  布局
+  doLayout(callback) {
+    let task = [
+      () => {
+        this.computedBaseValue()
+      },
+      () => {
+        this.computedLeftTopValue()
+      },
+      () => {
+        this.adjustLeftTopValue()
+      },
+      () => {
+        callback(this.root)
+      }
+    ]
+    asyncRun(task)
+  }
+
+  //  遍历数据创建节点、计算根节点的位置，计算根节点的子节点的top值
+  computedBaseValue() {
+    walk(
+      this.renderer.renderTree,
+      null,
+      (cur, parent, isRoot, layerIndex, index) => {
+        let newNode = this.createNode(cur, parent, isRoot, layerIndex)
+        // 根节点定位在画布中心位置
+        if (isRoot) {
+          this.setNodeCenter(newNode)
+        } else {
+          // 非根节点
+          // 时间轴2类型需要交替显示
+          if (this.layout === CONSTANTS.LAYOUT.TIMELINE2) {
+            // 三级及以下节点以上级为准
+            if (parent._node.dir) {
+              newNode.dir = parent._node.dir
+            } else {
+              // 节点生长方向
+              newNode.dir =
+                index % 2 === 0
+                  ? CONSTANTS.LAYOUT_GROW_DIR.BOTTOM
+                  : CONSTANTS.LAYOUT_GROW_DIR.TOP
+            }
+          } else {
+            newNode.dir = ''
+          }
+          if (parent._node.isRoot) {
+            newNode.top =
+              parent._node.top +
+              (cur._node.height > parent._node.height
+                ? -(cur._node.height - parent._node.height) / 2
+                : (parent._node.height - cur._node.height) / 2)
+          }
+        }
+        if (!cur.data.expand) {
+          return true
+        }
+      },
+      null,
+      true,
+      0
+    )
+  }
+
+  //  遍历节点树计算节点的left、top
+  computedLeftTopValue() {
+    walk(
+      this.root,
+      null,
+      (node, parent, isRoot, layerIndex, index) => {
+        if (
+          node.nodeData.data.expand &&
+          node.children &&
+          node.children.length
+        ) {
+          let marginX = this.getMarginX(layerIndex + 1)
+          let marginY = this.getMarginY(layerIndex + 1)
+          if (isRoot) {
+            let left = node.left + node.width
+            let totalLeft = left + marginX
+            node.children.forEach(cur => {
+              cur.left = totalLeft
+              totalLeft += cur.width + marginX
+            })
+          } else {
+            let totalTop =
+              node.top +
+              node.height +
+              marginY +
+              (this.getNodeActChildrenLength(node) > 0 ? node.expandBtnSize : 0)
+            node.children.forEach(cur => {
+              cur.left = node.left + node.width * 0.5
+              cur.top = totalTop
+              totalTop +=
+                cur.height +
+                marginY +
+                (this.getNodeActChildrenLength(cur) > 0 ? cur.expandBtnSize : 0)
+            })
+          }
+        }
+      },
+      null,
+      true
+    )
+  }
+
+  //  调整节点left、top
+  adjustLeftTopValue() {
+    walk(
+      this.root,
+      null,
+      (node, parent, isRoot, layerIndex) => {
+        if (!node.nodeData.data.expand) {
+          return
+        }
+        // 调整left
+        if (node.isRoot) {
+          this.updateBrothersLeft(node)
+        }
+        // 调整top
+        let len = node.children.length
+        if (parent && !parent.isRoot && len > 0) {
+          let marginY = this.getMarginY(layerIndex + 1)
+          let totalHeight =
+            node.children.reduce((h, item) => {
+              return (
+                h +
+                item.height +
+                (this.getNodeActChildrenLength(item) > 0
+                  ? item.expandBtnSize
+                  : 0)
+              )
+            }, 0) +
+            len * marginY
+          this.updateBrothersTop(node, totalHeight)
+        }
+      },
+      (node, parent, isRoot, layerIndex) => {
+        if (
+          parent &&
+          parent.isRoot &&
+          node.dir === CONSTANTS.LAYOUT_GROW_DIR.TOP
+        ) {
+          // 遍历二级节点的子节点
+          node.children.forEach(item => {
+            let totalHeight = this.getNodeAreaHeight(item)
+            let _top = item.top
+            item.top =
+              node.top - (item.top - node.top) - totalHeight + node.height
+            this.updateChildren(item.children, 'top', item.top - _top)
+          })
+        }
+      },
+      true
+    )
+  }
+
+  //  递归计算节点的宽度
+  getNodeAreaHeight(node) {
+    let totalHeight = 0
+    let loop = node => {
+      totalHeight +=
+        node.height +
+        (this.getNodeActChildrenLength(node) > 0 ? node.expandBtnSize : 0) +
+        this.getMarginY(node.layerIndex)
+      if (node.children.length) {
+        node.children.forEach(item => {
+          loop(item)
+        })
+      }
+    }
+    loop(node)
+    return totalHeight
+  }
+
+  //  调整兄弟节点的left
+  updateBrothersLeft(node) {
+    let childrenList = node.children
+    let totalAddWidth = 0
+    childrenList.forEach(item => {
+      item.left += totalAddWidth
+      if (item.children && item.children.length) {
+        this.updateChildren(item.children, 'left', totalAddWidth)
+      }
+      // let areaWidth = this.getNodeAreaWidth(item)
+      let { left, right } = this.getNodeBoundaries(item, 'h')
+      let areaWidth = right - left
+      let difference = areaWidth - item.width
+      if (difference > 0) {
+        totalAddWidth += difference
+      }
+    })
+  }
+
+  //  调整兄弟节点的top
+  updateBrothersTop(node, addHeight) {
+    if (node.parent && !node.parent.isRoot) {
+      let childrenList = node.parent.children
+      let index = childrenList.findIndex(item => {
+        return item === node
+      })
+      childrenList.forEach((item, _index) => {
+        if (item.hasCustomPosition()) {
+          // 适配自定义位置
+          return
+        }
+        let _offset = 0
+        // 下面的节点往下移
+        if (_index > index) {
+          _offset = addHeight
+        }
+        item.top += _offset
+        // 同步更新子节点的位置
+        if (item.children && item.children.length) {
+          this.updateChildren(item.children, 'top', _offset)
+        }
+      })
+      // 更新父节点的位置
+      this.updateBrothersTop(node.parent, addHeight)
+    }
+  }
+
+  //  绘制连线，连接该节点到其子节点
+  renderLine(node, lines, style) {
+    if (node.children.length <= 0) {
+      return []
+    }
+    let { left, top, width, height, expandBtnSize } = node
+    if (!this.mindMap.opt.alwaysShowExpandBtn) {
+      expandBtnSize = 0
+    }
+    let len = node.children.length
+    if (node.isRoot) {
+      // 当前节点是根节点
+      let prevBother = node
+      // 根节点的子节点是和根节点同一水平线排列
+      node.children.forEach((item, index) => {
+        let x1 = prevBother.left + prevBother.width
+        let x2 = item.left
+        let y = node.top + node.height / 2
+        let path = `M ${x1},${y} L ${x2},${y}`
+        lines[index].plot(path)
+        style && style(lines[index], item)
+        prevBother = item
+      })
+    } else {
+      // 当前节点为非根节点
+      let maxy = -Infinity
+      let miny = Infinity
+      let x = node.left + node.width * 0.3
+      node.children.forEach((item, index) => {
+        let y = item.top + item.height / 2
+        if (y > maxy) {
+          maxy = y
+        }
+        if (y < miny) {
+          miny = y
+        }
+        // 水平线
+        let path = `M ${x},${y} L ${item.left},${y}`
+        lines[index].plot(path)
+        style && style(lines[index], item)
+      })
+      // 竖线
+      if (len > 0) {
+        let line = this.draw.path()
+        expandBtnSize = len > 0 ? expandBtnSize : 0
+        if (
+          node.parent &&
+          node.parent.isRoot &&
+          node.dir === CONSTANTS.LAYOUT_GROW_DIR.TOP
+        ) {
+          line.plot(`M ${x},${top} L ${x},${miny}`)
+        } else {
+          line.plot(`M ${x},${top + height + expandBtnSize} L ${x},${maxy}`)
+        }
+        node.style.line(line)
+        node._lines.push(line)
+        style && style(line, node)
+      }
+    }
+  }
+
+  //  渲染按钮
+  renderExpandBtn(node, btn) {
+    let { width, height, expandBtnSize, isRoot } = node
+    if (!isRoot) {
+      let { translateX, translateY } = btn.transform()
+      if (
+        node.parent &&
+        node.parent.isRoot &&
+        node.dir === CONSTANTS.LAYOUT_GROW_DIR.TOP
+      ) {
+        btn.translate(
+          width * 0.3 - expandBtnSize / 2 - translateX,
+          -expandBtnSize / 2 - translateY
+        )
+      } else {
+        btn.translate(
+          width * 0.3 - expandBtnSize / 2 - translateX,
+          height + expandBtnSize / 2 - translateY
+        )
+      }
+    }
+  }
+
+  //  创建概要节点
+  renderGeneralization(node, gLine, gNode) {
+    let {
+      top,
+      bottom,
+      right,
+      generalizationLineMargin,
+      generalizationNodeMargin
+    } = this.getNodeBoundaries(node, 'h')
+    let x1 = right + generalizationLineMargin
+    let y1 = top
+    let x2 = right + generalizationLineMargin
+    let y2 = bottom
+    let cx = x1 + 20
+    let cy = y1 + (y2 - y1) / 2
+    let path = `M ${x1},${y1} Q ${cx},${cy} ${x2},${y2}`
+    gLine.plot(path)
+    gNode.left = right + generalizationNodeMargin
+    gNode.top = top + (bottom - top - gNode.height) / 2
+  }
+
+  // 渲染展开收起按钮的隐藏占位元素
+  renderExpandBtnRect(rect, expandBtnSize, width, height, node) {
+    if (this.layout === CONSTANTS.LAYOUT.TIMELINE) {
+      rect.size(width, expandBtnSize).x(0).y(height)
+    } else {
+      let dir = ''
+      if (node.dir === CONSTANTS.LAYOUT_GROW_DIR.TOP) {
+        dir =
+          node.layerIndex === 1
+            ? CONSTANTS.LAYOUT_GROW_DIR.TOP
+            : CONSTANTS.LAYOUT_GROW_DIR.BOTTOM
+      } else {
+        dir = CONSTANTS.LAYOUT_GROW_DIR.BOTTOM
+      }
+      if (dir === CONSTANTS.LAYOUT_GROW_DIR.TOP) {
+        rect.size(width, expandBtnSize).x(0).y(-expandBtnSize)
+      } else {
+        rect.size(width, expandBtnSize).x(0).y(height)
+      }
+    }
+  }
+}
+
+export default Timeline

simple-mind-map/src/layouts/VerticalTimeline.js

@@ -0,0 +1,431 @@
+import Base from './Base'
+import { walk, asyncRun } from '../utils'
+import { CONSTANTS } from '../constants/constant'
+
+//  竖向时间轴
+class VerticalTimeline extends Base {
+  //  构造函数
+  constructor(opt = {}, layout) {
+    super(opt)
+    this.layout = layout
+  }
+
+  //  布局
+  doLayout(callback) {
+    let task = [
+      () => {
+        this.computedBaseValue()
+      },
+      () => {
+        this.computedTopValue()
+      },
+      () => {
+        this.adjustLeftTopValue()
+      },
+      () => {
+        callback(this.root)
+      }
+    ]
+    asyncRun(task)
+  }
+
+  //  遍历数据创建节点、计算根节点的位置，计算根节点的子节点的top值
+  computedBaseValue() {
+    walk(
+      this.renderer.renderTree,
+      null,
+      (cur, parent, isRoot, layerIndex, index) => {
+        let newNode = this.createNode(cur, parent, isRoot, layerIndex)
+        // 根节点定位在画布中心位置
+        if (isRoot) {
+          this.setNodeCenter(newNode)
+        } else {
+          // 非根节点
+          // 节点生长方向
+          // 三级及以下节点以上级为准
+          if (parent._node.dir) {
+            newNode.dir = parent._node.dir
+          } else {
+            newNode.dir =
+              index % 2 === 0
+                ? CONSTANTS.LAYOUT_GROW_DIR.RIGHT
+                : CONSTANTS.LAYOUT_GROW_DIR.LEFT
+          }
+          // 定位二级节点的left
+          if (parent._node.isRoot) {
+            newNode.left =
+              parent._node.left +
+              (cur._node.width > parent._node.width
+                ? -(cur._node.width - parent._node.width) / 2
+                : (parent._node.width - cur._node.width) / 2)
+          } else {
+            newNode.left =
+              newNode.dir === CONSTANTS.LAYOUT_GROW_DIR.RIGHT
+                ? parent._node.left +
+                  parent._node.width +
+                  this.getMarginX(layerIndex)
+                : parent._node.left -
+                  this.getMarginX(layerIndex) -
+                  newNode.width
+          }
+        }
+        if (!cur.data.expand) {
+          return true
+        }
+      },
+      (cur, parent, isRoot, layerIndex) => {
+        // 返回时计算节点的areaHeight，也就是子节点所占的高度之和，包括外边距
+        if (isRoot) {
+          return
+        }
+        let len = cur.data.expand === false ? 0 : cur._node.children.length
+        cur._node.childrenAreaHeight = len
+          ? cur._node.children.reduce((h, item) => {
+              return h + item.height
+            }, 0) +
+            (len + 1) * this.getMarginY(layerIndex + 1)
+          : 0
+      },
+      true,
+      0
+    )
+  }
+
+  //  遍历节点树计算节点的top
+  computedTopValue() {
+    walk(
+      this.root,
+      null,
+      (node, parent, isRoot, layerIndex, index) => {
+        if (
+          node.nodeData.data.expand &&
+          node.children &&
+          node.children.length
+        ) {
+          let marginY = this.getMarginY(layerIndex + 1)
+          // 定位二级节点的top
+          if (isRoot) {
+            let top = node.top + node.height
+            let totalTop = top + marginY
+            node.children.forEach(cur => {
+              cur.top = totalTop
+              totalTop += cur.height + marginY
+            })
+          } else {
+            // 定位三级及以下节点的top
+            let marginY = this.getMarginY(layerIndex + 1)
+            let baseTop = node.top + node.height / 2 + marginY
+            // 第一个子节点的top值 = 该节点中心的top值 - 子节点的高度之和的一半
+            let totalTop = baseTop - node.childrenAreaHeight / 2
+            node.children.forEach(cur => {
+              cur.top = totalTop
+              totalTop += cur.height + marginY
+            })
+          }
+        }
+      },
+      null,
+      true
+    )
+  }
+
+  //  调整节点left、top
+  adjustLeftTopValue() {
+    walk(
+      this.root,
+      null,
+      (node, parent, isRoot, layerIndex) => {
+        if (!node.nodeData.data.expand) {
+          return
+        }
+        if (isRoot) return
+        // 判断子节点所占的高度之和是否大于该节点自身，大于则需要调整位置
+        let base = this.getMarginY(layerIndex + 1) * 2 + node.height
+        let difference = node.childrenAreaHeight - base
+        if (difference > 0) {
+          this.updateBrothers(node, difference / 2)
+        }
+      },
+      null,
+      true
+    )
+  }
+
+  //  更新兄弟节点的top
+  updateBrothers(node, addHeight) {
+    if (node.parent) {
+      let childrenList = node.parent.children
+      let index = childrenList.findIndex(item => {
+        return item === node
+      })
+      childrenList.forEach((item, _index) => {
+        // 自定义节点位置
+        if (item.hasCustomPosition()) return
+        // 三级或三级以下节点自身位置不需要动
+        if (!node.parent.isRoot && item === node) return
+        let _offset = 0
+        // 二级节点上面的兄弟节点不需要移动，自身需要往下移动
+        if (node.parent.isRoot) {
+          // 上面的节点不用移
+          if (_index < index) {
+            _offset = 0
+          } else if (_index > index) {
+            // 下面的节点往下移
+            _offset = addHeight * 2
+          } else {
+            // 自身也要移动
+            _offset = addHeight
+          }
+        } else {
+          // 三级或三级以下节点两侧的兄弟节点向两侧移动
+          // 上面的节点往上移
+          if (_index < index) {
+            _offset = -addHeight
+          } else if (_index > index) {
+            // 下面的节点往下移
+            _offset = addHeight
+          }
+        }
+        item.top += _offset
+        // 同步更新子节点的位置
+        if (item.children && item.children.length) {
+          this.updateChildren(item.children, 'top', _offset)
+        }
+      })
+      // 更新父节点的位置
+      this.updateBrothers(node.parent, addHeight)
+    }
+  }
+
+  //  调整兄弟节点的top
+  updateBrothersTop(node, addHeight) {
+    if (node.parent && !node.parent.isRoot) {
+      let childrenList = node.parent.children
+      let index = childrenList.findIndex(item => {
+        return item === node
+      })
+      childrenList.forEach((item, _index) => {
+        if (item.hasCustomPosition()) {
+          // 适配自定义位置
+          return
+        }
+        let _offset = 0
+        // 下面的节点往下移
+        if (_index > index) {
+          _offset = addHeight
+        }
+        item.top += _offset
+        // 同步更新子节点的位置
+        if (item.children && item.children.length) {
+          this.updateChildren(item.children, 'top', _offset)
+        }
+      })
+      // 更新父节点的位置
+      this.updateBrothersTop(node.parent, addHeight)
+    }
+  }
+
+  //  绘制连线，连接该节点到其子节点
+  renderLine(node, lines, style, lineStyle) {
+    if (lineStyle === 'curve') {
+      this.renderLineCurve(node, lines, style)
+    } else if (lineStyle === 'direct') {
+      this.renderLineDirect(node, lines, style)
+    } else {
+      this.renderLineStraight(node, lines, style)
+    }
+  }
+
+  // 直线连接
+  renderLineStraight(node, lines, style) {
+    if (node.children.length <= 0) {
+      return []
+    }
+    let { expandBtnSize } = node
+    if (!this.mindMap.opt.alwaysShowExpandBtn) {
+      expandBtnSize = 0
+    }
+    if (node.isRoot) {
+      // 当前节点是根节点
+      let prevBother = node
+      // 根节点的子节点是和根节点同一水平线排列
+      node.children.forEach((item, index) => {
+        let y1 = prevBother.top + prevBother.height
+        let y2 = item.top
+        let x = node.left + node.width / 2
+        let path = `M ${x},${y1} L ${x},${y2}`
+        lines[index].plot(path)
+        style && style(lines[index], item)
+        prevBother = item
+      })
+    } else {
+      // 当前节点为非根节点
+      if (node.dir === CONSTANTS.LAYOUT_GROW_DIR.RIGHT) {
+        let nodeRight = node.left + node.width
+        let nodeYCenter = node.top + node.height / 2
+        let marginX = this.getMarginX(node.layerIndex + 1)
+        let offset = (marginX - expandBtnSize) * 0.6
+        node.children.forEach((item, index) => {
+          let itemLeft = item.left
+          let itemYCenter = item.top + item.height / 2
+          let path = `
+            M ${nodeRight},${nodeYCenter} 
+            L ${nodeRight + offset},${nodeYCenter} 
+            L ${nodeRight + offset},${itemYCenter} 
+            L ${itemLeft},${itemYCenter}`
+          lines[index].plot(path)
+          style && style(lines[index], item)
+        })
+      } else {
+        let nodeLeft = node.left
+        let nodeYCenter = node.top + node.height / 2
+        let marginX = this.getMarginX(node.layerIndex + 1)
+        let offset = (marginX - expandBtnSize) * 0.6
+        node.children.forEach((item, index) => {
+          let itemRight = item.left + item.width
+          let itemYCenter = item.top + item.height / 2
+          let path = `
+            M ${nodeLeft},${nodeYCenter} 
+            L ${nodeLeft - offset},${nodeYCenter} 
+            L ${nodeLeft - offset},${itemYCenter} 
+            L ${itemRight},${itemYCenter}`
+          lines[index].plot(path)
+          style && style(lines[index], item)
+        })
+      }
+    }
+  }
+
+  // 直连
+  renderLineDirect(node, lines, style) {
+    if (node.children.length <= 0) {
+      return []
+    }
+    let { left, top, width, height, expandBtnSize } = node
+    if (!this.mindMap.opt.alwaysShowExpandBtn) {
+      expandBtnSize = 0
+    }
+    node.children.forEach((item, index) => {
+      if (node.isRoot) {
+        let prevBother = node
+        // 根节点的子节点是和根节点同一水平线排列
+        node.children.forEach((item, index) => {
+          let y1 = prevBother.top + prevBother.height
+          let y2 = item.top
+          let x = node.left + node.width / 2
+          let path = `M ${x},${y1} L ${x},${y2}`
+          lines[index].plot(path)
+          style && style(lines[index], item)
+          prevBother = item
+        })
+      } else {
+        let x1 =
+          item.dir === CONSTANTS.LAYOUT_GROW_DIR.LEFT
+            ? left - expandBtnSize
+            : left + width + expandBtnSize
+        let y1 = top + height / 2
+        let x2 =
+          item.dir === CONSTANTS.LAYOUT_GROW_DIR.LEFT
+            ? item.left + item.width
+            : item.left
+        let y2 = item.top + item.height / 2
+        let path = `M ${x1},${y1} L ${x2},${y2}`
+        lines[index].plot(path)
+        style && style(lines[index], item)
+      }
+    })
+  }
+
+  //  曲线风格连线
+  renderLineCurve(node, lines, style) {
+    if (node.children.length <= 0) {
+      return []
+    }
+    let { left, top, width, height, expandBtnSize } = node
+    if (!this.mindMap.opt.alwaysShowExpandBtn) {
+      expandBtnSize = 0
+    }
+    node.children.forEach((item, index) => {
+      if (node.isRoot) {
+        let prevBother = node
+        // 根节点的子节点是和根节点同一水平线排列
+        node.children.forEach((item, index) => {
+          let y1 = prevBother.top + prevBother.height
+          let y2 = item.top
+          let x = node.left + node.width / 2
+          let path = `M ${x},${y1} L ${x},${y2}`
+          lines[index].plot(path)
+          style && style(lines[index], item)
+          prevBother = item
+        })
+      } else {
+        let x1 =
+          item.dir === CONSTANTS.LAYOUT_GROW_DIR.LEFT
+            ? left - expandBtnSize
+            : left + width + expandBtnSize
+        let y1 = top + height / 2
+        let x2 =
+          item.dir === CONSTANTS.LAYOUT_GROW_DIR.LEFT
+            ? item.left + item.width
+            : item.left
+        let y2 = item.top + item.height / 2
+        let path = this.cubicBezierPath(x1, y1, x2, y2)
+        lines[index].plot(path)
+        style && style(lines[index], item)
+      }
+    })
+  }
+
+  //  渲染按钮
+  renderExpandBtn(node, btn) {
+    let { width, height, expandBtnSize, isRoot } = node
+    if (!isRoot) {
+      let { translateX, translateY } = btn.transform()
+      if (node.dir === CONSTANTS.LAYOUT_GROW_DIR.RIGHT) {
+        btn.translate(width - translateX, height / 2 - translateY)
+      } else {
+        btn.translate(-expandBtnSize - translateX, height / 2 - translateY)
+      }
+    }
+  }
+
+  //  创建概要节点
+  renderGeneralization(node, gLine, gNode) {
+    let isLeft = node.dir === CONSTANTS.LAYOUT_GROW_DIR.LEFT
+    let {
+      top,
+      bottom,
+      left,
+      right,
+      generalizationLineMargin,
+      generalizationNodeMargin
+    } = this.getNodeBoundaries(node, 'h', isLeft)
+    let x = isLeft
+      ? left - generalizationLineMargin
+      : right + generalizationLineMargin
+    let x1 = x
+    let y1 = top
+    let x2 = x
+    let y2 = bottom
+    let cx = x1 + (isLeft ? -20 : 20)
+    let cy = y1 + (y2 - y1) / 2
+    let path = `M ${x1},${y1} Q ${cx},${cy} ${x2},${y2}`
+    gLine.plot(path)
+    gNode.left =
+      x +
+      (isLeft ? -generalizationNodeMargin : generalizationNodeMargin) -
+      (isLeft ? gNode.width : 0)
+    gNode.top = top + (bottom - top - gNode.height) / 2
+  }
+
+  // 渲染展开收起按钮的隐藏占位元素
+  renderExpandBtnRect(rect, expandBtnSize, width, height, node) {
+    if (node.dir === CONSTANTS.LAYOUT_GROW_DIR.LEFT) {
+      rect.size(expandBtnSize, height).x(-expandBtnSize).y(0)
+    } else {
+      rect.size(expandBtnSize, height).x(width).y(0)
+    }
+  }
+}
+
+export default VerticalTimeline

simple-mind-map/src/layouts/fishboneUtils.js

@@ -0,0 +1,216 @@
+import { degToRad } from '../utils/'
+
+export default {
+  top: {
+    renderExpandBtn({
+      node,
+      btn,
+      expandBtnSize,
+      translateX,
+      translateY,
+      width,
+      height
+    }) {
+      if (node.parent && node.parent.isRoot) {
+        btn.translate(
+          width * 0.3 - expandBtnSize / 2 - translateX,
+          -expandBtnSize / 2 - translateY
+        )
+      } else {
+        btn.translate(
+          width * 0.3 - expandBtnSize / 2 - translateX,
+          height + expandBtnSize / 2 - translateY
+        )
+      }
+    },
+    renderLine({
+      node,
+      line,
+      top,
+      x,
+      lineLength,
+      height,
+      expandBtnSize,
+      maxy,
+      ctx
+    }) {
+      if (node.parent && node.parent.isRoot) {
+        line.plot(
+          `M ${x},${top} L ${x + lineLength},${
+            top - Math.tan(degToRad(ctx.mindMap.opt.fishboneDeg)) * lineLength
+          }`
+        )
+      } else {
+        line.plot(`M ${x},${top + height + expandBtnSize} L ${x},${maxy}`)
+      }
+    },
+    computedLeftTopValue({ layerIndex, node, ctx }) {
+      if (layerIndex >= 1 && node.children) {
+        // 遍历三级及以下节点的子节点
+        let startLeft = node.left + node.width * ctx.childIndent
+        let totalTop =
+          node.top +
+          node.height +
+          (ctx.getNodeActChildrenLength(node) > 0 ? node.expandBtnSize : 0)
+        node.children.forEach(item => {
+          item.left = startLeft
+          item.top += totalTop
+          totalTop +=
+            item.height +
+            (ctx.getNodeActChildrenLength(item) > 0 ? item.expandBtnSize : 0)
+        })
+      }
+    },
+    adjustLeftTopValueBefore({ node, parent, ctx }) {
+      // 调整top
+      let len = node.children.length
+      // 调整三级及以下节点的top
+      if (parent && !parent.isRoot && len > 0) {
+        let totalHeight = node.children.reduce((h, item) => {
+          return (
+            h +
+            item.height +
+            (ctx.getNodeActChildrenLength(item) > 0 ? item.expandBtnSize : 0)
+          )
+        }, 0)
+        ctx.updateBrothersTop(node, totalHeight)
+      }
+    },
+    adjustLeftTopValueAfter({ parent, node, ctx }) {
+      // 将二级节点的子节点移到上方
+      if (parent && parent.isRoot) {
+        // 遍历二级节点的子节点
+        let totalHeight = node.expandBtnSize
+        node.children.forEach(item => {
+          // 调整top
+          let nodeTotalHeight = ctx.getNodeAreaHeight(item)
+          let _top = item.top
+          let _left = item.left
+          item.top =
+            node.top - (item.top - node.top) - nodeTotalHeight + node.height
+          // 调整left
+          item.left = node.left + node.width * ctx.indent + (nodeTotalHeight + totalHeight) / Math.tan(degToRad(ctx.mindMap.opt.fishboneDeg))
+          totalHeight += nodeTotalHeight
+          // 同步更新后代节点
+          ctx.updateChildrenPro(item.children, {
+            top: item.top - _top,
+            left: item.left - _left
+          })
+        })
+      }
+    }
+  },
+  bottom: {
+    renderExpandBtn({
+      node,
+      btn,
+      expandBtnSize,
+      translateX,
+      translateY,
+      width,
+      height
+    }) {
+      if (node.parent && node.parent.isRoot) {
+        btn.translate(
+          width * 0.3 - expandBtnSize / 2 - translateX,
+          height + expandBtnSize / 2 - translateY
+        )
+      } else {
+        btn.translate(
+          width * 0.3 - expandBtnSize / 2 - translateX,
+          -expandBtnSize / 2 - translateY
+        )
+      }
+    },
+    renderLine({ node, line, top, x, lineLength, height, miny, ctx }) {
+      if (node.parent && node.parent.isRoot) {
+        line.plot(
+          `M ${x},${top + height} L ${x + lineLength},${
+            top + height + Math.tan(degToRad(ctx.mindMap.opt.fishboneDeg)) * lineLength
+          }`
+        )
+      } else {
+        line.plot(`M ${x},${top} L ${x},${miny}`)
+      }
+    },
+    computedLeftTopValue({ layerIndex, node, ctx }) {
+      if (layerIndex === 1 && node.children) {
+        // 遍历二级节点的子节点
+        let startLeft = node.left + node.width * ctx.childIndent
+        let totalTop =
+          node.top +
+          node.height +
+          (ctx.getNodeActChildrenLength(node) > 0 ? node.expandBtnSize : 0)
+
+        node.children.forEach(item => {
+          item.left = startLeft
+          item.top =
+            totalTop +
+            (ctx.getNodeActChildrenLength(item) > 0 ? item.expandBtnSize : 0)
+          totalTop +=
+            item.height +
+            (ctx.getNodeActChildrenLength(item) > 0 ? item.expandBtnSize : 0)
+        })
+      }
+      if (layerIndex > 1 && node.children) {
+        // 遍历三级及以下节点的子节点
+        let startLeft = node.left + node.width * ctx.childIndent
+        let totalTop =
+          node.top -
+          (ctx.getNodeActChildrenLength(node) > 0 ? node.expandBtnSize : 0)
+        node.children.forEach(item => {
+          item.left = startLeft
+          item.top = totalTop - item.height
+          totalTop -=
+            item.height +
+            (ctx.getNodeActChildrenLength(item) > 0 ? item.expandBtnSize : 0)
+        })
+      }
+    },
+    adjustLeftTopValueBefore({ node, ctx, layerIndex }) {
+      // 调整top
+      let len = node.children.length
+      if (layerIndex > 2 && len > 0) {
+        let totalHeight = node.children.reduce((h, item) => {
+          return (
+            h +
+            item.height +
+            (ctx.getNodeActChildrenLength(item) > 0 ? item.expandBtnSize : 0)
+          )
+        }, 0)
+        ctx.updateBrothersTop(node, -totalHeight)
+      }
+    },
+    adjustLeftTopValueAfter({ parent, node, ctx }) {
+      // 将二级节点的子节点移到上方
+      if (parent && parent.isRoot) {
+        // 遍历二级节点的子节点
+        let totalHeight = 0
+        let totalHeight2 = node.expandBtnSize
+        node.children.forEach(item => {
+          // 调整top
+          let hasChildren = ctx.getNodeActChildrenLength(item) > 0
+          let nodeTotalHeight = ctx.getNodeAreaHeight(item)
+          let offset =
+            hasChildren > 0
+              ? nodeTotalHeight -
+                item.height -
+                (hasChildren ? item.expandBtnSize : 0)
+              : 0
+          let _top = totalHeight + offset
+          let _left = item.left
+          item.top += _top
+          // 调整left
+          item.left = node.left + node.width * ctx.indent + (nodeTotalHeight + totalHeight2) / Math.tan(degToRad(ctx.mindMap.opt.fishboneDeg))
+          totalHeight += offset
+          totalHeight2 += nodeTotalHeight
+          // 同步更新后代节点
+          ctx.updateChildrenPro(item.children, {
+            top: _top,
+            left: item.left - _left
+          })
+        })
+      }
+    }
+  }
+}

simple-mind-map/src/parse/markdown.js

@@ -0,0 +1,7 @@
+import { transformToMarkdown } from './toMarkdown'
+import { transformMarkdownTo } from './markdownTo'
+
+export default {
+  transformToMarkdown,
+  transformMarkdownTo
+}

simple-mind-map/src/parse/markdownTo.js

@@ -0,0 +1,98 @@
+import { fromMarkdown } from 'mdast-util-from-markdown'
+
+// 处理list的情况
+const handleList = node => {
+  let list = []
+  let walk = (arr, newArr) => {
+    for (let i = 0; i < arr.length; i++) {
+      let cur = arr[i]
+      let node = {}
+      node.data = {
+        // 节点内容
+        text: cur.children[0].children[0].value
+      }
+      node.children = []
+      newArr.push(node)
+      if (cur.children.length > 1) {
+        for (let j = 1; j < cur.children.length; j++) {
+          let cur2 = cur.children[j]
+          if (cur2.type === 'list') {
+            walk(cur2.children, node.children)
+          }
+        }
+      }
+    }
+  }
+  walk(node.children, list)
+  return list
+}
+
+// 将markdown转换成节点树
+export const transformMarkdownTo = async md => {
+  const tree = fromMarkdown(md)
+  let root = {
+    children: []
+  }
+  let childrenQueue = [root.children]
+  let currentChildren = root.children
+  let depthQueue = [-1]
+  let currentDepth = -1
+  for (let i = 0; i < tree.children.length; i++) {
+    let cur = tree.children[i]
+    if (cur.type === 'heading') {
+      if (!cur.children[0]) continue
+      // 创建新节点
+      let node = {}
+      node.data = {
+        // 节点内容
+        text: cur.children[0].value
+      }
+      node.children = []
+      // 如果当前的层级大于上一个节点的层级，那么是其子节点
+      if (cur.depth > currentDepth) {
+        // 添加到上一个节点的子节点列表里
+        currentChildren.push(node)
+        // 更新当前栈和数据
+        childrenQueue.push(node.children)
+        currentChildren = node.children
+        depthQueue.push(cur.depth)
+        currentDepth = cur.depth
+      } else if (cur.depth === currentDepth) {
+        // 如果当前层级等于上一个节点的层级，说明它们是同级节点
+        // 将上一个节点出栈
+        childrenQueue.pop()
+        currentChildren = childrenQueue[childrenQueue.length - 1]
+        depthQueue.pop()
+        currentDepth = depthQueue[depthQueue.length - 1]
+        // 追加到上上个节点的子节点列表里
+        currentChildren.push(node)
+        // 更新当前栈和数据
+        childrenQueue.push(node.children)
+        currentChildren = node.children
+        depthQueue.push(cur.depth)
+        currentDepth = cur.depth
+      } else {
+        // 如果当前层级小于上一个节点的层级，那么一直出栈，直到遇到比当前层级小的节点
+        while (depthQueue.length) {
+          childrenQueue.pop()
+          currentChildren = childrenQueue[childrenQueue.length - 1]
+          depthQueue.pop()
+          currentDepth = depthQueue[depthQueue.length - 1]
+          if (currentDepth < cur.depth) {
+            // 追加到该节点的子节点列表里
+            currentChildren.push(node)
+            // 更新当前栈和数据
+            childrenQueue.push(node.children)
+            currentChildren = node.children
+            depthQueue.push(cur.depth)
+            currentDepth = cur.depth
+            break
+          }
+        }
+      }
+    } else if (cur.type === 'list') {
+      currentChildren.push(...handleList(cur))
+    }
+  }
+  return root.children[0]
+}

simple-mind-map/src/parse/toMarkdown.js

@@ -0,0 +1,53 @@
+import { walk } from '../utils'
+
+let el = null
+const getText = str => {
+  if (!el) {
+    el = document.createElement('div')
+  }
+  el.innerHTML = str
+  return el.textContent
+}
+
+const getTitleMark = level => {
+  return new Array(level).fill('#').join('')
+}
+
+const getIndentMark = level => {
+  return new Array(level - 6).fill('   ').join('') + '*'
+}
+
+// 转换成markdown格式
+export const transformToMarkdown = root => {
+  let content = ''
+  walk(
+    root,
+    null,
+    (node, parent, isRoot, layerIndex) => {
+      let level = layerIndex + 1
+      let text = node.data.richText ? getText(node.data.text) : node.data.text
+      if (level <= 6) {
+        content += getTitleMark(level)
+      } else {
+        content += getIndentMark(level)
+      }
+      content += ' ' + text
+      // 概要
+      let generalization = node.data.generalization
+      if (generalization && generalization.text) {
+        let generalizationText = generalization.richText
+          ? getText(generalization.text)
+          : generalization.text
+        content += `[${generalizationText}]`
+      }
+      content += '\n\n'
+      // 备注
+      if (node.data.note) {
+        content += node.data.note + '\n\n'
+      }
+    },
+    () => {},
+    true
+  )
+  return content
+}

simple-mind-map/src/parse/xmind.js

@@ -0,0 +1,328 @@
+import JSZip from 'jszip'
+import xmlConvert from 'xml-js'
+import {
+  getTextFromHtml,
+  imgToDataUrl,
+  parseDataUrl,
+  getImageSize
+} from '../utils/index'
+
+//  解析.xmind文件
+const parseXmindFile = file => {
+  return new Promise((resolve, reject) => {
+    JSZip.loadAsync(file).then(
+      async zip => {
+        try {
+          let content = ''
+          if (zip.files['content.json']) {
+            let json = await zip.files['content.json'].async('string')
+            content = await transformXmind(json, zip.files)
+          } else if (zip.files['content.xml']) {
+            let xml = await zip.files['content.xml'].async('string')
+            let json = xmlConvert.xml2json(xml)
+            content = transformOldXmind(json)
+          }
+          if (content) {
+            resolve(content)
+          } else {
+            reject(new Error('解析失败'))
+          }
+        } catch (error) {
+          reject(error)
+        }
+      },
+      e => {
+        reject(e)
+      }
+    )
+  })
+}
+
+//  转换xmind数据
+const transformXmind = async (content, files) => {
+  let data = JSON.parse(content)[0]
+  let nodeTree = data.rootTopic
+  let newTree = {}
+  let waitLoadImageList = []
+  let walk = async (node, newNode) => {
+    newNode.data = {
+      // 节点内容
+      text: node.title
+    }
+    // 节点备注
+    if (node.notes) {
+      let notesData = node.notes.realHTML || node.notes.plain
+      newNode.data.note = notesData ? notesData.content || '' : ''
+    }
+    // 超链接
+    if (node.href && /^https?:\/\//.test(node.href)) {
+      newNode.data.hyperlink = node.href
+    }
+    // 标签
+    if (node.labels && node.labels.length > 0) {
+      newNode.data.tag = node.labels
+    }
+    // 图片
+    if (node.image && /\.(jpg|jpeg|png|gif|webp)$/.test(node.image.src)) {
+      try {
+        // 处理异步逻辑
+        let resolve = null
+        let promise = new Promise(_resolve => {
+          resolve = _resolve
+        })
+        waitLoadImageList.push(promise)
+        // 读取图片
+        let imageType = /\.([^.]+)$/.exec(node.image.src)[1]
+        let imageBase64 =
+          `data:image/${imageType};base64,` +
+          (await files['resources/' + node.image.src.split('/')[1]].async(
+            'base64'
+          ))
+        newNode.data.image = imageBase64
+        // 如果图片尺寸不存在
+        if (!node.image.width && !node.image.height) {
+          let imageSize = await getImageSize(imageBase64)
+          newNode.data.imageSize = {
+            width: imageSize.width,
+            height: imageSize.height
+          }
+        } else {
+          newNode.data.imageSize = {
+            width: node.image.width,
+            height: node.image.height
+          }
+        }
+        resolve()
+      } catch (error) {
+        console.log(error)
+        resolve()
+      }
+    }
+    // 子节点
+    newNode.children = []
+    if (
+      node.children &&
+      node.children.attached &&
+      node.children.attached.length > 0
+    ) {
+      node.children.attached.forEach(item => {
+        let newChild = {}
+        newNode.children.push(newChild)
+        walk(item, newChild)
+      })
+    }
+  }
+  walk(nodeTree, newTree)
+  await Promise.all(waitLoadImageList)
+  return newTree
+}
+
+//  转换旧版xmind数据，xmind8
+const transformOldXmind = content => {
+  let data = JSON.parse(content)
+  let elements = data.elements
+  let root = null
+  let getRoot = arr => {
+    for (let i = 0; i < arr.length; i++) {
+      if (!root && arr[i].name === 'topic') {
+        root = arr[i]
+        return
+      }
+    }
+    arr.forEach(item => {
+      getRoot(item.elements)
+    })
+  }
+  getRoot(elements)
+  let newTree = {}
+  let getItemByName = (arr, name) => {
+    return arr.find(item => {
+      return item.name === name
+    })
+  }
+  let walk = (node, newNode) => {
+    let nodeElements = node.elements
+    newNode.data = {
+      // 节点内容
+      text: getItemByName(nodeElements, 'title').elements[0].text
+    }
+    try {
+      // 节点备注
+      let notesElement = getItemByName(nodeElements, 'notes')
+      if (notesElement) {
+        newNode.data.note =
+          notesElement.elements[0].elements[0].elements[0].text
+      }
+    } catch (error) {
+      console.log(error)
+    }
+    try {
+      // 超链接
+      if (
+        node.attributes &&
+        node.attributes['xlink:href'] &&
+        /^https?:\/\//.test(node.attributes['xlink:href'])
+      ) {
+        newNode.data.hyperlink = node.attributes['xlink:href']
+      }
+    } catch (error) {
+      console.log(error)
+    }
+    try {
+      // 标签
+      let labelsElement = getItemByName(nodeElements, 'labels')
+      if (labelsElement) {
+        newNode.data.tag = labelsElement.elements.map(item => {
+          return item.elements[0].text
+        })
+      }
+    } catch (error) {
+      console.log(error)
+    }
+    // 子节点
+    newNode.children = []
+    let _children = getItemByName(nodeElements, 'children')
+    if (_children && _children.elements && _children.elements.length > 0) {
+      _children.elements.forEach(item => {
+        if (item.name === 'topics') {
+          item.elements.forEach(item2 => {
+            let newChild = {}
+            newNode.children.push(newChild)
+            walk(item2, newChild)
+          })
+        } else {
+          let newChild = {}
+          newNode.children.push(newChild)
+          walk(item, newChild)
+        }
+      })
+    }
+  }
+  walk(root, newTree)
+  return newTree
+}
+
+// 数据转换为xmind文件
+const transformToXmind = async (data, name) => {
+  const id = 'simpleMindMap_' + Date.now()
+  const imageList = []
+  // 转换核心数据
+  let newTree = {}
+  let waitLoadImageList = []
+  let walk = async (node, newNode, isRoot) => {
+    let newData = {
+      structureClass: 'org.xmind.ui.logic.right',
+      title: getTextFromHtml(node.data.text), // 节点文本
+      children: {
+        attached: []
+      }
+    }
+    // 备注
+    if (node.data.note !== undefined) {
+      newData.notes = {
+        realHTML: {
+          content: node.data.note
+        },
+        plain: {
+          content: node.data.note
+        }
+      }
+    }
+    // 超链接
+    if (node.data.hyperlink !== undefined) {
+      newData.href = node.data.hyperlink
+    }
+    // 标签
+    if (node.data.tag !== undefined) {
+      newData.labels = node.data.tag || []
+    }
+    // 图片
+    if (node.data.image) {
+      try {
+        // 处理异步逻辑
+        let resolve = null
+        let promise = new Promise(_resolve => {
+          resolve = _resolve
+        })
+        waitLoadImageList.push(promise)
+        let imgName = ''
+        let imgData = node.data.image
+        // 网络图片要先转换成data:url
+        if (/^https?:\/\//.test(node.data.image)) {
+          imgData = await imgToDataUrl(node.data.image)
+        }
+        // 从data:url中解析出图片类型和base64
+        let dataUrlRes = parseDataUrl(imgData)
+        imgName = 'image_' + imageList.length + '.' + dataUrlRes.type
+        imageList.push({
+          name: imgName,
+          data: dataUrlRes.base64
+        })
+        newData.image = {
+          src: 'xap:resources/' + imgName,
+          width: node.data.imageSize.width,
+          height: node.data.imageSize.height
+        }
+        resolve()
+      } catch (error) {
+        console.log(error)
+        resolve()
+      }
+    }
+    // 样式
+    // 暂时不考虑样式
+    if (isRoot) {
+      newData.class = 'topic'
+      newNode.id = id
+      newNode.class = 'sheet'
+      newNode.title = name
+      newNode.extensions = []
+      newNode.topicPositioning = 'fixed'
+      newNode.topicOverlapping = 'overlap'
+      newNode.coreVersion = '2.100.0'
+      newNode.rootTopic = newData
+    } else {
+      Object.keys(newData).forEach(key => {
+        newNode[key] = newData[key]
+      })
+    }
+    if (node.children && node.children.length > 0) {
+      node.children.forEach(child => {
+        let newChild = {}
+        walk(child, newChild)
+        newData.children.attached.push(newChild)
+      })
+    }
+  }
+  walk(data, newTree, true)
+  await Promise.all(waitLoadImageList)
+  const contentData = [newTree]
+  // 创建压缩包
+  const zip = new JSZip()
+  zip.file('content.json', JSON.stringify(contentData))
+  zip.file(
+    'metadata.json',
+    `{"modifier":"","dataStructureVersion":"1","layoutEngineVersion":"2","activeSheetId":"${id}"}`
+  )
+  const manifestData = {
+    'file-entries': { 'content.json': {}, 'metadata.json': {} }
+  }
+  // 图片
+  if (imageList.length > 0) {
+    imageList.forEach(item => {
+      manifestData['file-entries']['resources/' + item.name] = {}
+      const img = zip.folder('resources')
+      img.file(item.name, item.data, { base64: true })
+    })
+  }
+  zip.file('manifest.json', JSON.stringify(manifestData))
+  const zipData = await zip.generateAsync({ type: 'blob' })
+  return zipData
+}
+
+export default {
+  parseXmindFile,
+  transformXmind,
+  transformOldXmind,
+  transformToXmind
+}

simple-mind-map/src/plugins/AssociativeLine.js

@@ -0,0 +1,452 @@
+import { walk, bfsWalk, throttle } from '../utils'
+import { v4 as uuid } from 'uuid'
+import {
+  getAssociativeLineTargetIndex,
+  computeCubicBezierPathPoints,
+  cubicBezierPath,
+  getNodePoint,
+  computeNodePoints,
+  getNodeLinePath
+} from './associativeLine/associativeLineUtils'
+import associativeLineControlsMethods from './associativeLine/associativeLineControls'
+import associativeLineTextMethods from './associativeLine/associativeLineText'
+
+// 关联线插件
+class AssociativeLine {
+  constructor(opt = {}) {
+    this.mindMap = opt.mindMap
+    this.draw = this.mindMap.draw
+    // 当前所有连接线
+    this.lineList = []
+    // 当前激活的连接线
+    this.activeLine = null
+    // 当前正在创建连接线
+    this.isCreatingLine = false // 是否正在创建连接线中
+    this.creatingStartNode = null // 起始节点
+    this.creatingLine = null // 创建过程中的连接线
+    this.overlapNode = null // 创建过程中的目标节点
+    // 是否有节点正在被拖拽
+    this.isNodeDragging = false
+    // 箭头图标
+    this.markerPath = null
+    this.marker = this.createMarker()
+    // 控制点
+    this.controlLine1 = null
+    this.controlLine2 = null
+    this.controlPoint1 = null
+    this.controlPoint2 = null
+    this.controlPointDiameter = 10
+    this.isControlPointMousedown = false
+    this.mousedownControlPointKey = ''
+    this.controlPointMousemoveState = {
+      pos: null,
+      startPoint: null,
+      endPoint: null,
+      targetIndex: ''
+    }
+    // 节流一下，不然很卡
+    this.checkOverlapNode = throttle(this.checkOverlapNode, 100, this)
+    // 控制点相关方法
+    Object.keys(associativeLineControlsMethods).forEach(item => {
+      this[item] = associativeLineControlsMethods[item].bind(this)
+    })
+    // 关联线文字相关方法
+    Object.keys(associativeLineTextMethods).forEach(item => {
+      this[item] = associativeLineTextMethods[item].bind(this)
+    })
+    this.bindEvent()
+  }
+
+  // 监听事件
+  bindEvent() {
+    // 节点树渲染完毕后渲染连接线
+    this.renderAllLines = this.renderAllLines.bind(this)
+    this.mindMap.on('node_tree_render_end', this.renderAllLines)
+    // 状态改变后重新渲染连接线
+    this.mindMap.on('data_change', this.renderAllLines)
+    // 监听画布和节点点击事件，用于清除当前激活的连接线
+    this.mindMap.on('draw_click', () => {
+      if (this.isControlPointMousedown) {
+        return
+      }
+      this.clearActiveLine()
+    })
+    this.mindMap.on('node_click', node => {
+      if (this.isCreatingLine) {
+        this.completeCreateLine(node)
+      } else {
+        this.clearActiveLine()
+      }
+    })
+    // 注册删除快捷键
+    this.mindMap.keyCommand.addShortcut(
+      'Del|Backspace',
+      this.removeLine.bind(this)
+    )
+    // 注册添加连接线的命令
+    this.mindMap.command.add('ADD_ASSOCIATIVE_LINE', this.addLine.bind(this))
+    // 监听鼠标移动事件
+    this.mindMap.on('mousemove', this.onMousemove.bind(this))
+    // 节点拖拽事件
+    this.mindMap.on('node_dragging', this.onNodeDragging.bind(this))
+    this.mindMap.on('node_dragend', this.onNodeDragend.bind(this))
+    // 拖拽控制点
+    this.mindMap.on('mouseup', this.onControlPointMouseup.bind(this))
+    // 缩放事件
+    this.mindMap.on('scale', this.onScale)
+  }
+
+  // 创建箭头
+  createMarker() {
+    return this.draw.marker(20, 20, add => {
+      add.ref(2, 5)
+      add.size(10, 10)
+      add.attr('orient', 'auto-start-reverse')
+      this.markerPath = add.path('M0,0 L2,5 L0,10 L10,5 Z')
+    })
+  }
+
+  // 渲染所有连线
+  renderAllLines() {
+    // 先移除
+    this.removeAllLines()
+    this.removeControls()
+    this.clearActiveLine()
+    let tree = this.mindMap.renderer.root
+    if (!tree) return
+    let idToNode = new Map()
+    let nodeToIds = new Map()
+    walk(
+      tree,
+      null,
+      cur => {
+        if (!cur) return
+        let data = cur.nodeData.data
+        if (
+          data.associativeLineTargets &&
+          data.associativeLineTargets.length > 0
+        ) {
+          nodeToIds.set(cur, data.associativeLineTargets)
+        }
+        if (data.id) {
+          idToNode.set(data.id, cur)
+        }
+      },
+      () => {},
+      true,
+      0
+    )
+    nodeToIds.forEach((ids, node) => {
+      ids.forEach(id => {
+        let toNode = idToNode.get(id)
+        if (!node || !toNode) return
+        let [startPoint, endPoint] = computeNodePoints(node, toNode)
+        this.drawLine(startPoint, endPoint, node, toNode)
+      })
+    })
+  }
+
+  // 绘制连接线
+  drawLine(startPoint, endPoint, node, toNode) {
+    let {
+      associativeLineWidth,
+      associativeLineColor,
+      associativeLineActiveWidth,
+      associativeLineActiveColor
+    } = this.mindMap.themeConfig
+    // 箭头
+    this.markerPath
+      .stroke({ color: associativeLineColor })
+      .fill({ color: associativeLineColor })
+    // 路径
+    let { path: pathStr, controlPoints } = getNodeLinePath(
+      startPoint,
+      endPoint,
+      node,
+      toNode
+    )
+    // 虚线
+    let path = this.draw.path()
+    path
+      .stroke({
+        width: associativeLineWidth,
+        color: associativeLineColor,
+        dasharray: [6, 4]
+      })
+      .fill({ color: 'none' })
+    path.plot(pathStr)
+    path.marker('end', this.marker)
+    // 不可见的点击线
+    let clickPath = this.draw.path()
+    clickPath
+      .stroke({ width: associativeLineActiveWidth, color: 'transparent' })
+      .fill({ color: 'none' })
+    clickPath.plot(pathStr)
+    // 文字
+    let text = this.createText({ path, clickPath, node, toNode, startPoint, endPoint, controlPoints })
+    // 点击事件
+    clickPath.click(e => {
+      e.stopPropagation()
+      this.setActiveLine({ path, clickPath, text, node, toNode, startPoint, endPoint, controlPoints })
+    })
+    // 渲染关联线文字
+    this.renderText(this.getText(node, toNode), path, text)
+    this.lineList.push([path, clickPath, text, node, toNode])
+  }
+
+  // 激活某根关联线
+  setActiveLine({ path, clickPath, text, node, toNode, startPoint, endPoint, controlPoints }) {
+    let {
+      associativeLineActiveColor
+    } = this.mindMap.themeConfig
+    // 如果当前存在激活节点，那么取消激活节点
+    if (this.mindMap.renderer.activeNodeList.length > 0) {
+      this.clearActiveNodes()
+    } else {
+      // 否则清除当前的关联线的激活状态，如果有的话
+      this.clearActiveLine()
+      // 保存当前激活的关联线信息
+      this.activeLine = [path, clickPath, text, node, toNode]
+      // 让不可见的点击线显示
+      clickPath.stroke({ color: associativeLineActiveColor })
+      // 如果没有输入过关联线文字，那么显示默认文字
+      if (!this.getText(node, toNode)) {
+        this.renderText(this.mindMap.opt.defaultAssociativeLineText, path, text)
+      }
+      // 渲染控制点和连线
+      this.renderControls(
+        startPoint,
+        endPoint,
+        controlPoints[0],
+        controlPoints[1]
+      )
+      this.mindMap.emit('associative_line_click', path, clickPath, node, toNode)
+    }
+  }
+
+  // 移除所有连接线
+  removeAllLines() {
+    this.lineList.forEach(line => {
+      line[0].remove()
+      line[1].remove()
+      line[2].remove()
+    })
+    this.lineList = []
+  }
+
+  // 从当前激活节点开始创建连接线
+  createLineFromActiveNode() {
+    if (this.mindMap.renderer.activeNodeList.length <= 0) return
+    let node = this.mindMap.renderer.activeNodeList[0]
+    this.createLine(node)
+  }
+
+  // 创建连接线
+  createLine(fromNode) {
+    let { associativeLineWidth, associativeLineColor } =
+      this.mindMap.themeConfig
+    if (this.isCreatingLine || !fromNode) return
+    this.isCreatingLine = true
+    this.creatingStartNode = fromNode
+    this.creatingLine = this.draw.path()
+    this.creatingLine
+      .stroke({
+        width: associativeLineWidth,
+        color: associativeLineColor,
+        dasharray: [6, 4]
+      })
+      .fill({ color: 'none' })
+    this.creatingLine.marker('end', this.marker)
+  }
+
+  // 鼠标移动事件
+  onMousemove(e) {
+    this.onControlPointMousemove(e)
+    this.updateCreatingLine(e)
+  }
+
+  // 更新创建过程中的连接线
+  updateCreatingLine(e) {
+    if (!this.isCreatingLine) return
+    let { x, y } = this.getTransformedEventPos(e)
+    let startPoint = getNodePoint(this.creatingStartNode)
+    let offsetX = x > startPoint.x ? -10 : 10
+    let pathStr = cubicBezierPath(startPoint.x, startPoint.y, x + offsetX, y)
+    this.creatingLine.plot(pathStr)
+    this.checkOverlapNode(x, y)
+  }
+
+  // 获取转换后的鼠标事件对象的坐标
+  getTransformedEventPos(e) {
+    let { x, y } = this.mindMap.toPos(e.clientX, e.clientY)
+    let { scaleX, scaleY, translateX, translateY } =
+      this.mindMap.draw.transform()
+    return {
+      x: (x - translateX) / scaleX,
+      y: (y - translateY) / scaleY
+    }
+  }
+
+  // 检测当前移动到的目标节点
+  checkOverlapNode(x, y) {
+    this.overlapNode = null
+    bfsWalk(this.mindMap.renderer.root, node => {
+      if (node.nodeData.data.isActive) {
+        this.mindMap.renderer.setNodeActive(node, false)
+      }
+      if (node === this.creatingStartNode || this.overlapNode) {
+        return
+      }
+      let { left, top, width, height } = node
+      let right = left + width
+      let bottom = top + height
+      if (x >= left && x <= right && y >= top && y <= bottom) {
+        this.overlapNode = node
+      }
+    })
+    if (this.overlapNode && !this.overlapNode.nodeData.data.isActive) {
+      this.mindMap.renderer.setNodeActive(this.overlapNode, true)
+    }
+  }
+
+  // 完成创建连接线
+  completeCreateLine(node) {
+    if (this.creatingStartNode === node) return
+    this.addLine(this.creatingStartNode, node)
+    if (this.overlapNode && this.overlapNode.nodeData.data.isActive) {
+      this.mindMap.renderer.setNodeActive(this.overlapNode, false)
+    }
+    this.isCreatingLine = false
+    this.creatingStartNode = null
+    this.creatingLine.remove()
+    this.creatingLine = null
+    this.overlapNode = null
+  }
+
+  // 添加连接线
+  addLine(fromNode, toNode) {
+    if (!fromNode || !toNode) return
+    // 目标节点如果没有id，则生成一个id
+    let id = toNode.nodeData.data.id
+    if (!id) {
+      id = uuid()
+      this.mindMap.execCommand('SET_NODE_DATA', toNode, {
+        id
+      })
+    }
+    // 将目标节点id保存起来
+    let list = fromNode.nodeData.data.associativeLineTargets || []
+    list.push(id)
+    // 保存控制点
+    let [startPoint, endPoint] = computeNodePoints(fromNode, toNode)
+    let controlPoints = computeCubicBezierPathPoints(
+      startPoint.x,
+      startPoint.y,
+      endPoint.x,
+      endPoint.y
+    )
+    let offsetList =
+      fromNode.nodeData.data.associativeLineTargetControlOffsets || []
+    // 保存的实际是控制点和端点的差值，否则当节点位置改变了，控制点还是原来的位置，连线就不对了
+    offsetList[list.length - 1] = [
+      {
+        x: controlPoints[0].x - startPoint.x,
+        y: controlPoints[0].y - startPoint.y
+      },
+      {
+        x: controlPoints[1].x - endPoint.x,
+        y: controlPoints[1].y - endPoint.y
+      }
+    ]
+    this.mindMap.execCommand('SET_NODE_DATA', fromNode, {
+      associativeLineTargets: list,
+      associativeLineTargetControlOffsets: offsetList
+    })
+  }
+
+  // 删除连接线
+  removeLine() {
+    if (!this.activeLine) return
+    let [, , , node, toNode] = this.activeLine
+    this.removeControls()
+    let { associativeLineTargets, associativeLineTargetControlOffsets, associativeLineText } =
+      node.nodeData.data
+    let targetIndex = getAssociativeLineTargetIndex(node, toNode)
+    // 更新关联线文本数据
+    let newAssociativeLineText = {}
+    if (associativeLineText) {
+      Object.keys(associativeLineText).forEach((item) => {
+        if (item !== toNode.nodeData.data.id) {
+          newAssociativeLineText[item] = associativeLineText[item]
+        }
+      })
+    }
+    this.mindMap.execCommand('SET_NODE_DATA', node, {
+      // 目标
+      associativeLineTargets: associativeLineTargets.filter((_, index) => {
+        return index !== targetIndex
+      }),
+      // 偏移量
+      associativeLineTargetControlOffsets: associativeLineTargetControlOffsets
+        ? associativeLineTargetControlOffsets.filter((_, index) => {
+            return index !== targetIndex
+          })
+        : [],
+      // 文本
+      associativeLineText: newAssociativeLineText
+    })
+  }
+
+  // 清除当前激活的节点
+  clearActiveNodes() {
+    if (this.mindMap.renderer.activeNodeList.length > 0) {
+      this.mindMap.execCommand('CLEAR_ACTIVE_NODE')
+    }
+  }
+
+  // 清除激活的线
+  clearActiveLine() {
+    if (this.activeLine) {
+      let [, clickPath, text, node, toNode] = this.activeLine
+      clickPath.stroke({
+        color: 'transparent'
+      })
+      // 隐藏关联线文本编辑框
+      this.hideEditTextBox()
+      // 如果当前关联线没有文字，则清空文字节点
+      if (!this.getText(node, toNode)) {
+        text.clear()
+      }
+      this.activeLine = null
+      this.removeControls()
+    }
+  }
+
+  // 处理节点正在拖拽事件
+  onNodeDragging() {
+    if (this.isNodeDragging) return
+    this.isNodeDragging = true
+    this.lineList.forEach(line => {
+      line[0].hide()
+      line[1].hide()
+      line[2].hide()
+    })
+    this.hideControls()
+  }
+
+  // 处理节点拖拽完成事件
+  onNodeDragend() {
+    if (!this.isNodeDragging) return
+    this.lineList.forEach(line => {
+      line[0].show()
+      line[1].show()
+      line[2].show()
+    })
+    this.showControls()
+    this.isNodeDragging = false
+  }
+}
+
+AssociativeLine.instanceName = 'associativeLine'
+
+export default AssociativeLine

simple-mind-map/src/plugins/Drag.js

@@ -0,0 +1,319 @@
+import { bfsWalk, throttle } from '../utils'
+import Base from '../layouts/Base'
+
+// 节点拖动插件
+class Drag extends Base {
+  //  构造函数
+  constructor({ mindMap }) {
+    super(mindMap.renderer)
+    this.mindMap = mindMap
+    this.reset()
+    this.bindEvent()
+  }
+
+  //  复位
+  reset() {
+    // 当前拖拽节点
+    this.node = null
+    // 当前重叠节点
+    this.overlapNode = null
+    // 当前上一个同级节点
+    this.prevNode = null
+    // 当前下一个同级节点
+    this.nextNode = null
+    // 画布的变换数据
+    this.drawTransform = null
+    // 克隆节点
+    this.clone = null
+    // 连接线
+    this.line = null
+    // 同级位置占位符
+    this.placeholder = null
+    // 鼠标按下位置和节点左上角的偏移量
+    this.offsetX = 0
+    this.offsetY = 0
+    // 克隆节点左上角的坐标
+    this.cloneNodeLeft = 0
+    this.cloneNodeTop = 0
+    // 当前鼠标是否按下
+    this.isMousedown = false
+    // 拖拽的鼠标位置变量
+    this.mouseDownX = 0
+    this.mouseDownY = 0
+    this.mouseMoveX = 0
+    this.mouseMoveY = 0
+    // 鼠标移动的距离距鼠标按下的位置距离多少以上才认为是拖动事件
+    this.checkDragOffset = 10
+  }
+
+  //  绑定事件
+  bindEvent() {
+    this.checkOverlapNode = throttle(this.checkOverlapNode, 300, this)
+    this.mindMap.on('node_mousedown', (node, e) => {
+      if (this.mindMap.opt.readonly || node.isGeneralization) {
+        return
+      }
+      if (e.which !== 1 || node.isRoot) {
+        return
+      }
+      e.preventDefault()
+      // 计算鼠标按下的位置距离节点左上角的距离
+      this.drawTransform = this.mindMap.draw.transform()
+      let { scaleX, scaleY, translateX, translateY } = this.drawTransform
+      let { x, y } = this.mindMap.toPos(e.clientX, e.clientY)
+      this.offsetX = x - (node.left * scaleX + translateX)
+      this.offsetY = y - (node.top * scaleY + translateY)
+      this.node = node
+      this.isMousedown = true
+      this.mouseDownX = x
+      this.mouseDownY = y
+    })
+    this.mindMap.on('mousemove', e => {
+      if (this.mindMap.opt.readonly) {
+        return
+      }
+      if (!this.isMousedown) {
+        return
+      }
+      this.mindMap.emit('node_dragging', this.node)
+      e.preventDefault()
+      let { x, y } = this.mindMap.toPos(e.clientX, e.clientY)
+      this.mouseMoveX = x
+      this.mouseMoveY = y
+      if (
+        Math.abs(x - this.mouseDownX) <= this.checkDragOffset &&
+        Math.abs(y - this.mouseDownY) <= this.checkDragOffset &&
+        !this.node.isDrag
+      ) {
+        return
+      }
+      this.mindMap.renderer.clearAllActive()
+      this.onMove(x, y)
+    })
+    this.onMouseup = this.onMouseup.bind(this)
+    this.mindMap.on('node_mouseup', this.onMouseup)
+    this.mindMap.on('mouseup', this.onMouseup)
+  }
+
+  //  鼠标松开事件
+  onMouseup(e) {
+    if (!this.isMousedown) {
+      return
+    }
+    this.isMousedown = false
+    let _nodeIsDrag = this.node.isDrag
+    this.node.isDrag = false
+    this.node.show()
+    this.removeCloneNode()
+    // 存在重叠子节点，则移动作为其子节点
+    if (this.overlapNode) {
+      this.mindMap.renderer.setNodeActive(this.overlapNode, false)
+      this.mindMap.execCommand('MOVE_NODE_TO', this.node, this.overlapNode)
+    } else if (this.prevNode) {
+      // 存在前一个相邻节点，作为其下一个兄弟节点
+      this.mindMap.renderer.setNodeActive(this.prevNode, false)
+      this.mindMap.execCommand('INSERT_AFTER', this.node, this.prevNode)
+    } else if (this.nextNode) {
+      // 存在下一个相邻节点，作为其前一个兄弟节点
+      this.mindMap.renderer.setNodeActive(this.nextNode, false)
+      this.mindMap.execCommand('INSERT_BEFORE', this.node, this.nextNode)
+    } else if (_nodeIsDrag && this.mindMap.opt.enableFreeDrag) {
+      // 自定义位置
+      let { x, y } = this.mindMap.toPos(
+        e.clientX - this.offsetX,
+        e.clientY - this.offsetY
+      )
+      let { scaleX, scaleY, translateX, translateY } = this.drawTransform
+      x = (x - translateX) / scaleX
+      y = (y - translateY) / scaleY
+      this.node.left = x
+      this.node.top = y
+      this.node.customLeft = x
+      this.node.customTop = y
+      this.mindMap.execCommand('SET_NODE_CUSTOM_POSITION', this.node, x, y)
+      this.mindMap.render()
+    }
+    this.reset()
+    this.mindMap.emit('node_dragend')
+  }
+
+  //  创建克隆节点
+  createCloneNode() {
+    if (!this.clone) {
+      // 节点
+      this.clone = this.node.group.clone()
+      this.clone.opacity(0.5)
+      this.clone.css('z-index', 99999)
+      this.node.isDrag = true
+      this.node.hide()
+      // 连接线
+      this.line = this.draw.path()
+      this.line.opacity(0.5)
+      this.node.styleLine(this.line, this.node)
+      // 同级位置占位符
+      this.placeholder = this.draw.rect().fill({
+        color: this.node.style.merge('lineColor', true)
+      })
+      this.mindMap.draw.add(this.clone)
+    }
+  }
+
+  //  移除克隆节点
+  removeCloneNode() {
+    if (!this.clone) {
+      return
+    }
+    this.clone.remove()
+    this.line.remove()
+    this.placeholder.remove()
+  }
+
+  //  拖动中
+  onMove(x, y) {
+    if (!this.isMousedown) {
+      return
+    }
+    this.createCloneNode()
+    let { scaleX, scaleY, translateX, translateY } = this.drawTransform
+    this.cloneNodeLeft = x - this.offsetX
+    this.cloneNodeTop = y - this.offsetY
+    x = (this.cloneNodeLeft - translateX) / scaleX
+    y = (this.cloneNodeTop - translateY) / scaleY
+    let t = this.clone.transform()
+    this.clone.translate(x - t.translateX, y - t.translateY)
+    // 连接线
+    let parent = this.node.parent
+    this.line.plot(
+      this.quadraticCurvePath(
+        parent.left + parent.width / 2,
+        parent.top + parent.height / 2,
+        x + this.node.width / 2,
+        y + this.node.height / 2
+      )
+    )
+    this.checkOverlapNode()
+  }
+
+  //  检测重叠节点
+  checkOverlapNode() {
+    if (!this.drawTransform) {
+      return
+    }
+    let x = this.mouseMoveX
+    let y = this.mouseMoveY
+    this.overlapNode = null
+    this.prevNode = null
+    this.nextNode = null
+    this.placeholder.size(0, 0)
+    bfsWalk(this.mindMap.renderer.root, node => {
+      if (node.nodeData.data.isActive) {
+        this.mindMap.renderer.setNodeActive(node, false)
+      }
+      if (node === this.node || this.node.isParent(node)) {
+        return
+      }
+      if (this.overlapNode || (this.prevNode && this.nextNode)) {
+        return
+      }
+      let nodeRect = this.getNodeRect(node)
+      let oneFourthHeight = nodeRect.height / 4
+      // 前一个和后一个节点
+      let checkList = node.parent ? node.parent.children.filter((item) => {
+        return item !== this.node
+      }) : []
+      let index = checkList.findIndex((item) => {
+        return item === node
+      })
+      let prevBrother = null
+      let nextBrother = null
+      if (index !== -1) {
+        if (index - 1 >= 0) {
+          prevBrother = checkList[index - 1]
+        }
+        if (index + 1 <= checkList.length - 1) {
+          nextBrother = checkList[index + 1]
+        }
+      }
+      // 和前一个兄弟节点的距离
+      let prevBrotherOffset = 0
+      if (prevBrother) {
+        let prevNodeRect = this.getNodeRect(prevBrother)  
+        prevBrotherOffset = nodeRect.top - prevNodeRect.bottom
+        // 间距小于10就当它不存在
+        prevBrotherOffset = prevBrotherOffset >= 10 ? prevBrotherOffset / 2 : 0
+      } else {
+        // 没有前一个兄弟节点，那么假设和前一个节点的距离为20
+        prevBrotherOffset = 10
+      }
+      // 和后一个兄弟节点的距离
+      let nextBrotherOffset = 0
+      if (nextBrother) {
+        let nextNodeRect = this.getNodeRect(nextBrother)
+        nextBrotherOffset = nextNodeRect.top - nodeRect.bottom
+        nextBrotherOffset = nextBrotherOffset >= 10 ? nextBrotherOffset / 2 : 0
+      } else {
+        nextBrotherOffset = 10
+      }
+      if (nodeRect.left <= x && nodeRect.right >= x) {
+        // 检测兄弟节点位置
+        if (!this.overlapNode && !this.prevNode && !this.nextNode && !node.isRoot) {
+          let checkIsPrevNode = nextBrotherOffset > 0 ? // 距离下一个兄弟节点的距离大于0
+            y > nodeRect.bottom && y <= (nodeRect.bottom + nextBrotherOffset) : // 那么在当前节点外底部判断
+            y >= nodeRect.bottom - oneFourthHeight && y <= nodeRect.bottom // 否则在当前节点内底部1/4区间判断
+          let checkIsNextNode = prevBrotherOffset > 0 ? // 距离上一个兄弟节点的距离大于0
+            y < nodeRect.top && y >= (nodeRect.top - prevBrotherOffset) : // 那么在当前节点外底部判断
+            y >= nodeRect.top && y <= nodeRect.top + oneFourthHeight
+          if (checkIsPrevNode) {
+            this.prevNode = node
+            let size = nextBrotherOffset > 0 ? nextBrotherOffset : 5
+            this.placeholder.size(node.width, size).move(nodeRect.originLeft, nodeRect.originBottom)
+          } else if (checkIsNextNode) {
+            this.nextNode = node
+            let size = prevBrotherOffset > 0 ? prevBrotherOffset : 5
+            this.placeholder.size(node.width, size).move(nodeRect.originLeft, nodeRect.originTop - size)
+          }
+        }
+        // 检测是否重叠
+        if (!this.overlapNode && !this.prevNode && !this.nextNode) {
+          if (
+            nodeRect.top + (prevBrotherOffset > 0 ? 0 : oneFourthHeight) <= y &&
+            nodeRect.bottom - (nextBrotherOffset > 0 ? 0 : oneFourthHeight) >= y
+          ) {
+            this.overlapNode = node
+          }
+        }
+      }
+    })
+    if (this.overlapNode) {
+      this.mindMap.renderer.setNodeActive(this.overlapNode, true)
+    }
+  }
+
+  // 计算节点的位置尺寸信息
+  getNodeRect(node) {
+    let { scaleX, scaleY, translateX, translateY } = this.drawTransform
+    let { left, top, width, height } = node
+    let originLeft = left
+    let originTop = top
+    let originBottom = top + height
+    let right = (left + width) * scaleX + translateX
+    let bottom = (top + height) * scaleY + translateY
+    left = left * scaleX + translateX
+    top = top * scaleY + translateY
+    return {
+      width,
+      height,
+      left,
+      top,
+      right,
+      bottom,
+      originLeft,
+      originTop,
+      originBottom
+    }
+  }
+}
+
+Drag.instanceName = 'drag'
+
+export default Drag

simple-mind-map/src/plugins/Export.js

@@ -0,0 +1,247 @@
+import { imgToDataUrl, downloadFile, readBlob, removeHTMLEntities } from '../utils'
+import { SVG } from '@svgdotjs/svg.js'
+import drawBackgroundImageToCanvas from '../utils/simulateCSSBackgroundInCanvas'
+import { transformToMarkdown } from '../parse/toMarkdown'
+
+//  导出插件
+class Export {
+  //  构造函数
+  constructor(opt) {
+    this.mindMap = opt.mindMap
+    this.exportPadding = this.mindMap.opt.exportPadding
+  }
+
+  //  导出
+  async export(type, isDownload = true, name = '思维导图', ...args) {
+    if (this[type]) {
+      let result = await this[type](name, ...args)
+      if (isDownload && type !== 'pdf') {
+        downloadFile(result, name + '.' + type)
+      }
+      return result
+    } else {
+      return null
+    }
+  }
+
+  //  获取svg数据
+  async getSvgData() {
+    let { exportPaddingX, exportPaddingY } = this.mindMap.opt
+    let { svg, svgHTML } = this.mindMap.getSvgData({
+      paddingX: exportPaddingX,
+      paddingY: exportPaddingY
+    })
+    // 把图片的url转换成data:url类型，否则导出会丢失图片
+    let imageList = svg.find('image')
+    let task = imageList.map(async item => {
+      let imgUlr = item.attr('href') || item.attr('xlink:href')
+      let imgData = await imgToDataUrl(imgUlr)
+      item.attr('href', imgData)
+    })
+    await Promise.all(task)
+    if (imageList.length > 0) {
+      svgHTML = svg.svg()
+    }
+    return {
+      node: svg,
+      str: svgHTML
+    }
+  }
+
+  //   svg转png
+  svgToPng(svgSrc, transparent) {
+    return new Promise((resolve, reject) => {
+      const img = new Image()
+      // 跨域图片需要添加这个属性，否则画布被污染了无法导出图片
+      img.setAttribute('crossOrigin', 'anonymous')
+      img.onload = async () => {
+        try {
+          let canvas = document.createElement('canvas')
+          canvas.width = img.width + this.exportPadding * 2
+          canvas.height = img.height + this.exportPadding * 2
+          let ctx = canvas.getContext('2d')
+          // 绘制背景
+          if (!transparent) {
+            await this.drawBackgroundToCanvas(ctx, canvas.width, canvas.height)
+          }
+          // 图片绘制到canvas里
+          ctx.drawImage(
+            img,
+            0,
+            0,
+            img.width,
+            img.height,
+            this.exportPadding,
+            this.exportPadding,
+            img.width,
+            img.height
+          )
+          resolve(canvas.toDataURL())
+        } catch (error) {
+          reject(error)
+        }
+      }
+      img.onerror = e => {
+        reject(e)
+      }
+      img.src = svgSrc
+    })
+  }
+
+  //  在canvas上绘制思维导图背景
+  drawBackgroundToCanvas(ctx, width, height) {
+    return new Promise((resolve, reject) => {
+      let {
+        backgroundColor = '#fff',
+        backgroundImage,
+        backgroundRepeat = 'no-repeat',
+        backgroundPosition = 'center center',
+        backgroundSize = 'cover',
+      } = this.mindMap.themeConfig
+      // 背景颜色
+      ctx.save()
+      ctx.rect(0, 0, width, height)
+      ctx.fillStyle = backgroundColor
+      ctx.fill()
+      ctx.restore()
+      // 背景图片
+      if (backgroundImage && backgroundImage !== 'none') {
+        ctx.save()
+        drawBackgroundImageToCanvas(ctx, width, height, backgroundImage, {
+          backgroundRepeat,
+          backgroundPosition,
+          backgroundSize
+        }, (err) => {
+          if (err) {
+            reject(err)
+          } else {
+            resolve()
+          }
+          ctx.restore()
+        })
+      } else {
+        resolve()
+      }
+    })
+  }
+
+  //  在svg上绘制思维导图背景
+  drawBackgroundToSvg(svg) {
+    return new Promise(async resolve => {
+      let {
+        backgroundColor = '#fff',
+        backgroundImage,
+        backgroundRepeat = 'repeat'
+      } = this.mindMap.themeConfig
+      // 背景颜色
+      svg.css('background-color', backgroundColor)
+      // 背景图片
+      if (backgroundImage && backgroundImage !== 'none') {
+        let imgDataUrl = await imgToDataUrl(backgroundImage)
+        svg.css('background-image', `url(${imgDataUrl})`)
+        svg.css('background-repeat', backgroundRepeat)
+        resolve()
+      } else {
+        resolve()
+      }
+    })
+  }
+
+  //  导出为png
+  /**
+   * 方法1.把svg的图片都转化成data:url格式，再转换
+   * 方法2.把svg的图片提取出来再挨个绘制到canvas里，最后一起转换
+   */
+  async png(name, transparent = false) {
+    let { node, str } = await this.getSvgData()
+    str = removeHTMLEntities(str)
+    // 如果开启了富文本，则使用htmltocanvas转换为图片
+    if (this.mindMap.richText) {
+      let res =  await this.mindMap.richText.handleExportPng(node.node)
+      let imgDataUrl = await this.svgToPng(res, transparent)
+      return imgDataUrl
+    }
+    // 转换成blob数据
+    let blob = new Blob([str], {
+      type: 'image/svg+xml'
+    })
+    // 转换成data:url数据
+    let svgUrl = await readBlob(blob)
+    // 绘制到canvas上
+    let res = await this.svgToPng(svgUrl, transparent)
+    return res
+  }
+
+  //  导出为pdf
+  async pdf(name) {
+    if (!this.mindMap.doExportPDF) {
+      throw new Error('请注册ExportPDF插件')
+    }
+    let img = await this.png()
+    this.mindMap.doExportPDF.pdf(name, img)
+  }
+
+  // 导出为xmind
+  async xmind(name) {
+    if (!this.mindMap.doExportXMind) {
+      throw new Error('请注册ExportXMind插件')
+    }
+    const data = this.mindMap.getData()
+    const blob = await this.mindMap.doExportXMind.xmind(data, name)
+    const res = await readBlob(blob)
+    return res
+  }
+
+  //  导出为svg
+  // plusCssText：附加的css样式，如果svg中存在dom节点，想要设置一些针对节点的样式可以通过这个参数传入
+  async svg(name, plusCssText) {
+    let { node } = await this.getSvgData()
+    // 开启了节点富文本编辑
+    if (this.mindMap.richText) {
+      if (plusCssText) {
+        let foreignObjectList = node.find('foreignObject')
+        if (foreignObjectList.length > 0) {
+          foreignObjectList[0].add(SVG(`<style>${plusCssText}</style>`))
+        }
+      }
+    }
+    node.first().before(SVG(`<title>${name}</title>`))
+    await this.drawBackgroundToSvg(node)
+    let str = node.svg()
+    str = removeHTMLEntities(str)
+    // 转换成blob数据
+    let blob = new Blob([str], {
+      type: 'image/svg+xml'
+    })
+    let res = await readBlob(blob)
+    return res
+  }
+
+  //  导出为json
+  async json(name, withConfig = true) {
+    let data = this.mindMap.getData(withConfig)
+    let str = JSON.stringify(data)
+    let blob = new Blob([str])
+    let res = await readBlob(blob)
+    return res
+  }
+
+  //  专有文件，其实就是json文件
+  async smm(name, withConfig) {
+    let res = await this.json(name, withConfig)
+    return res
+  }
+
+  // markdown文件
+  async md() {
+    let data = this.mindMap.getData()
+    let content = transformToMarkdown(data)
+    let blob = new Blob([content])
+    let res = await readBlob(blob)
+    return res
+  }
+}
+
+Export.instanceName = 'doExport'
+
+export default Export

simple-mind-map/src/plugins/ExportPDF.js

@@ -0,0 +1,44 @@
+import JsPDF from 'jspdf'
+
+//  导出PDF插件，需要通过Export插件使用
+class ExportPDF {
+  //  构造函数
+  constructor(opt) {
+    this.mindMap = opt.mindMap
+  }
+
+  //  导出为pdf
+  pdf(name, img) {
+    let pdf = new JsPDF('', 'pt', 'a4')
+    let a4Width = 595
+    let a4Height = 841
+    let a4Ratio = a4Width / a4Height
+    let image = new Image()
+    image.onload = () => {
+      let imageWidth = image.width
+      let imageHeight = image.height
+      let imageRatio = imageWidth / imageHeight
+      let w, h
+      if (imageWidth <= a4Width && imageHeight <= a4Height) {
+        // 使用图片原始宽高
+        w = imageWidth
+        h = imageHeight
+      } else if (a4Ratio > imageRatio) {
+        // 以a4Height为高度，缩放图片宽度
+        w = imageRatio * a4Height
+        h = a4Height
+      } else {
+        // 以a4Width为宽度，缩放图片高度
+        w = a4Width
+        h = a4Width / imageRatio
+      }
+      pdf.addImage(img, 'PNG', (a4Width - w) / 2, (a4Height - h) / 2, w, h)
+      pdf.save(name)
+    }
+    image.src = img
+  }
+}
+
+ExportPDF.instanceName = 'doExportPDF'
+
+export default ExportPDF

simple-mind-map/src/plugins/ExportXMind.js

@@ -0,0 +1,19 @@
+import xmind from '../parse/xmind'
+
+//  导出XMind插件，需要通过Export插件使用
+class ExportXMind {
+  //  构造函数
+  constructor(opt) {
+    this.mindMap = opt.mindMap
+  }
+
+  // 导出xmind
+  async xmind(data, name) {
+    const zipData = await xmind.transformToXmind(data, name)
+    return zipData
+  }
+}
+
+ExportXMind.instanceName = 'doExportXMind'
+
+export default ExportXMind

simple-mind-map/src/plugins/KeyboardNavigation.js

@@ -0,0 +1,235 @@
+import { bfsWalk } from '../utils'
+import { CONSTANTS } from '../constants/constant'
+
+//  键盘导航插件
+class KeyboardNavigation {
+  //  构造函数
+  constructor(opt) {
+    this.opt = opt
+    this.mindMap = opt.mindMap
+    this.onKeyup = this.onKeyup.bind(this)
+    this.mindMap.keyCommand.addShortcut(CONSTANTS.KEY_DIR.LEFT, () => {
+      this.onKeyup(CONSTANTS.KEY_DIR.LEFT)
+    })
+    this.mindMap.keyCommand.addShortcut(CONSTANTS.KEY_DIR.UP, () => {
+      this.onKeyup(CONSTANTS.KEY_DIR.UP)
+    })
+    this.mindMap.keyCommand.addShortcut(CONSTANTS.KEY_DIR.RIGHT, () => {
+      this.onKeyup(CONSTANTS.KEY_DIR.RIGHT)
+    })
+    this.mindMap.keyCommand.addShortcut(CONSTANTS.KEY_DIR.DOWN, () => {
+      this.onKeyup(CONSTANTS.KEY_DIR.DOWN)
+    })
+  }
+
+  //  处理按键事件
+  onKeyup(dir) {
+    if (this.mindMap.renderer.activeNodeList.length > 0) {
+      this.focus(dir)
+    } else {
+      let root = this.mindMap.renderer.root
+      this.mindMap.execCommand('GO_TARGET_NODE', root)
+    }
+  }
+
+  //  聚焦到下一个节点
+  focus(dir) {
+    // 当前聚焦的节点
+    let currentActiveNode = this.mindMap.renderer.activeNodeList[0]
+    // 当前聚焦节点的位置信息
+    let currentActiveNodeRect = this.getNodeRect(currentActiveNode)
+    // 寻找的下一个聚焦节点
+    let targetNode = null
+    let targetDis = Infinity
+    // 保存并维护距离最近的节点
+    let checkNodeDis = (rect, node) => {
+      let dis = this.getDistance(currentActiveNodeRect, rect)
+      if (dis < targetDis) {
+        targetNode = node
+        targetDis = dis
+      }
+    }
+
+    // 第一优先级：阴影算法
+    this.getFocusNodeByShadowAlgorithm({
+      currentActiveNode,
+      currentActiveNodeRect,
+      dir,
+      checkNodeDis
+    })
+
+    // 第二优先级：区域算法
+    if (!targetNode) {
+      this.getFocusNodeByAreaAlgorithm({
+        currentActiveNode,
+        currentActiveNodeRect,
+        dir,
+        checkNodeDis
+      })
+    }
+
+    // 第三优先级：简单算法
+    if (!targetNode) {
+      this.getFocusNodeBySimpleAlgorithm({
+        currentActiveNode,
+        currentActiveNodeRect,
+        dir,
+        checkNodeDis
+      })
+    }
+
+    // 找到了则让目标节点聚焦
+    if (targetNode) {
+      this.mindMap.execCommand('GO_TARGET_NODE', targetNode)
+    }
+  }
+
+  //  1.简单算法
+  getFocusNodeBySimpleAlgorithm({
+    currentActiveNode,
+    currentActiveNodeRect,
+    dir,
+    checkNodeDis
+  }) {
+    // 遍历节点树
+    bfsWalk(this.mindMap.renderer.root, node => {
+      // 跳过当前聚焦的节点
+      if (node === currentActiveNode) return
+      // 当前遍历到的节点的位置信息
+      let rect = this.getNodeRect(node)
+      let { left, top, right, bottom } = rect
+      let match = false
+      // 按下了左方向键
+      if (dir === CONSTANTS.KEY_DIR.LEFT) {
+        // 判断节点是否在当前节点的左侧
+        match = right <= currentActiveNodeRect.left
+        // 按下了右方向键
+      } else if (dir === CONSTANTS.KEY_DIR.RIGHT) {
+        // 判断节点是否在当前节点的右侧
+        match = left >= currentActiveNodeRect.right
+        // 按下了上方向键
+      } else if (dir === CONSTANTS.KEY_DIR.UP) {
+        // 判断节点是否在当前节点的上面
+        match = bottom <= currentActiveNodeRect.top
+        // 按下了下方向键
+      } else if (dir === CONSTANTS.KEY_DIR.DOWN) {
+        // 判断节点是否在当前节点的下面
+        match = top >= currentActiveNodeRect.bottom
+      }
+      // 符合要求，判断是否是最近的节点
+      if (match) {
+        checkNodeDis(rect, node)
+      }
+    })
+  }
+
+  //  2.阴影算法
+  getFocusNodeByShadowAlgorithm({
+    currentActiveNode,
+    currentActiveNodeRect,
+    dir,
+    checkNodeDis
+  }) {
+    bfsWalk(this.mindMap.renderer.root, node => {
+      if (node === currentActiveNode) return
+      let rect = this.getNodeRect(node)
+      let { left, top, right, bottom } = rect
+      let match = false
+      if (dir === CONSTANTS.KEY_DIR.LEFT) {
+        match =
+          left < currentActiveNodeRect.left &&
+          top < currentActiveNodeRect.bottom &&
+          bottom > currentActiveNodeRect.top
+      } else if (dir === CONSTANTS.KEY_DIR.RIGHT) {
+        match =
+          right > currentActiveNodeRect.right &&
+          top < currentActiveNodeRect.bottom &&
+          bottom > currentActiveNodeRect.top
+      } else if (dir === CONSTANTS.KEY_DIR.UP) {
+        match =
+          top < currentActiveNodeRect.top &&
+          left < currentActiveNodeRect.right &&
+          right > currentActiveNodeRect.left
+      } else if (dir === CONSTANTS.KEY_DIR.DOWN) {
+        match =
+          bottom > currentActiveNodeRect.bottom &&
+          left < currentActiveNodeRect.right &&
+          right > currentActiveNodeRect.left
+      }
+      if (match) {
+        checkNodeDis(rect, node)
+      }
+    })
+  }
+
+  //  3.区域算法
+  getFocusNodeByAreaAlgorithm({
+    currentActiveNode,
+    currentActiveNodeRect,
+    dir,
+    checkNodeDis
+  }) {
+    // 当前聚焦节点的中心点
+    let cX = (currentActiveNodeRect.right + currentActiveNodeRect.left) / 2
+    let cY = (currentActiveNodeRect.bottom + currentActiveNodeRect.top) / 2
+    bfsWalk(this.mindMap.renderer.root, node => {
+      if (node === currentActiveNode) return
+      let rect = this.getNodeRect(node)
+      let { left, top, right, bottom } = rect
+      // 遍历到的节点的中心点
+      let ccX = (right + left) / 2
+      let ccY = (bottom + top) / 2
+      // 节点的中心点坐标和当前聚焦节点的中心点坐标的差值
+      let offsetX = ccX - cX
+      let offsetY = ccY - cY
+      if (offsetX === 0 && offsetY === 0) return
+      let match = false
+      if (dir === CONSTANTS.KEY_DIR.LEFT) {
+        match = offsetX <= 0 && offsetX <= offsetY && offsetX <= -offsetY
+      } else if (dir === CONSTANTS.KEY_DIR.RIGHT) {
+        match = offsetX > 0 && offsetX >= -offsetY && offsetX >= offsetY
+      } else if (dir === CONSTANTS.KEY_DIR.UP) {
+        match = offsetY <= 0 && offsetY < offsetX && offsetY < -offsetX
+      } else if (dir === CONSTANTS.KEY_DIR.DOWN) {
+        match = offsetY > 0 && -offsetY < offsetX && offsetY > offsetX
+      }
+      if (match) {
+        checkNodeDis(rect, node)
+      }
+    })
+  }
+
+  //  获取节点的位置信息
+  getNodeRect(node) {
+    let { scaleX, scaleY, translateX, translateY } =
+      this.mindMap.draw.transform()
+    let { left, top, width, height } = node
+    return {
+      right: (left + width) * scaleX + translateX,
+      bottom: (top + height) * scaleY + translateY,
+      left: left * scaleX + translateX,
+      top: top * scaleY + translateY
+    }
+  }
+
+  //  获取两个节点的距离
+  getDistance(node1Rect, node2Rect) {
+    let center1 = this.getCenter(node1Rect)
+    let center2 = this.getCenter(node2Rect)
+    return Math.sqrt(
+      Math.pow(center1.x - center2.x, 2) + Math.pow(center1.y - center2.y, 2)
+    )
+  }
+
+  //  获取节点的中心点
+  getCenter({ left, right, top, bottom }) {
+    return {
+      x: (left + right) / 2,
+      y: (top + bottom) / 2
+    }
+  }
+}
+
+KeyboardNavigation.instanceName = 'keyboardNavigation'
+
+export default KeyboardNavigation

simple-mind-map/src/plugins/MiniMap.js

@@ -0,0 +1,112 @@
+// 小地图插件
+class MiniMap {
+  //  构造函数
+  constructor(opt) {
+    this.mindMap = opt.mindMap
+    this.isMousedown = false
+    this.mousedownPos = {
+      x: 0,
+      y: 0
+    }
+    this.startViewPos = {
+      x: 0,
+      y: 0
+    }
+  }
+
+  //  计算小地图的渲染数据
+  /**
+   * boxWidth：小地图容器的宽度
+   * boxHeight：小地图容器的高度
+   */
+  calculationMiniMap(boxWidth, boxHeight) {
+    let { svgHTML, rect, origWidth, origHeight, scaleX, scaleY } =
+      this.mindMap.getSvgData()
+    // 计算数据
+    let boxRatio = boxWidth / boxHeight
+    let actWidth = 0
+    let actHeight = 0
+    if (boxRatio > rect.ratio) {
+      // 高度以box为准，缩放宽度
+      actHeight = boxHeight
+      actWidth = rect.ratio * actHeight
+    } else {
+      // 宽度以box为准，缩放高度
+      actWidth = boxWidth
+      actHeight = actWidth / rect.ratio
+    }
+    // svg图形的缩放及位置
+    let miniMapBoxScale = actWidth / rect.width
+    let miniMapBoxLeft = (boxWidth - actWidth) / 2
+    let miniMapBoxTop = (boxHeight - actHeight) / 2
+    // 视口框大小及位置
+    let _rectX = rect.x - (rect.width * scaleX - rect.width) / 2
+    let _rectX2 = rect.x2 + (rect.width * scaleX - rect.width) / 2
+    let _rectY = rect.y - (rect.height * scaleY - rect.height) / 2
+    let _rectY2 = rect.y2 + (rect.height * scaleY - rect.height) / 2
+    let _rectWidth = rect.width * scaleX
+    let _rectHeight = rect.height * scaleY
+    let viewBoxStyle = {
+      left: 0,
+      top: 0,
+      right: 0,
+      bottom: 0
+    }
+    viewBoxStyle.left =
+      Math.max(0, (-_rectX / _rectWidth) * actWidth) + miniMapBoxLeft + 'px'
+    viewBoxStyle.right =
+      Math.max(0, ((_rectX2 - origWidth) / _rectWidth) * actWidth) +
+      miniMapBoxLeft +
+      'px'
+
+    viewBoxStyle.top =
+      Math.max(0, (-_rectY / _rectHeight) * actHeight) + miniMapBoxTop + 'px'
+    viewBoxStyle.bottom =
+      Math.max(0, ((_rectY2 - origHeight) / _rectHeight) * actHeight) +
+      miniMapBoxTop +
+      'px'
+    return {
+      svgHTML, // 小地图html
+      viewBoxStyle, // 视图框的位置信息
+      miniMapBoxScale, // 视图框的缩放值
+      miniMapBoxLeft, // 视图框的left值
+      miniMapBoxTop // 视图框的top值
+    }
+  }
+
+  //  小地图鼠标按下事件
+  onMousedown(e) {
+    this.isMousedown = true
+    this.mousedownPos = {
+      x: e.clientX,
+      y: e.clientY
+    }
+    // 保存视图当前的偏移量
+    let transformData = this.mindMap.view.getTransformData()
+    this.startViewPos = {
+      x: transformData.state.x,
+      y: transformData.state.y
+    }
+  }
+
+  //  小地图鼠标移动事件
+  onMousemove(e, sensitivityNum = 5) {
+    if (!this.isMousedown) {
+      return
+    }
+    let ox = e.clientX - this.mousedownPos.x
+    let oy = e.clientY - this.mousedownPos.y
+    // 在视图最初偏移量上累加更新量
+    this.mindMap.view.translateXTo(ox * sensitivityNum + this.startViewPos.x)
+    this.mindMap.view.translateYTo(oy * sensitivityNum + this.startViewPos.y)
+  }
+
+  //  小地图鼠标松开事件
+  onMouseup() {
+    this.isMousedown = false
+  }
+}
+
+MiniMap.instanceName = 'miniMap'
+
+export default MiniMap

simple-mind-map/src/plugins/NodeImgAdjust.js

@@ -0,0 +1,223 @@
+// 节点图片大小调整插件
+import { resizeImgSizeByOriginRatio } from '../utils/index'
+import btnsSvg from '../svg/btns'
+
+class NodeImgAdjust {
+  //  构造函数
+  constructor({ mindMap }) {
+    this.mindMap = mindMap
+    this.resizeBtnSize = 26 // 调整按钮的大小
+    this.handleEl = null // 自定义元素，用来渲染临时图片、调整按钮
+    this.isShowHandleEl = false // 自定义元素是否在显示中
+    this.node = null // 当前节点实例
+    this.img = null // 当前节点的图片节点
+    this.rect = null // 当前图片节点的尺寸信息
+    this.isMousedown = false // 当前是否是按住调整按钮状态
+    this.currentImgWidth = 0 // 当前拖拽实时图片的大小
+    this.currentImgHeight = 0
+    this.isAdjusted = false // 是否是拖拽结束后的渲染期间
+    this.bindEvent()
+  }
+
+  // 监听事件
+  bindEvent() {
+    this.onNodeImgMouseleave = this.onNodeImgMouseleave.bind(this)
+    this.onNodeImgMousemove = this.onNodeImgMousemove.bind(this)
+    this.onMousemove = this.onMousemove.bind(this)
+    this.onMouseup = this.onMouseup.bind(this)
+    this.onRenderEnd = this.onRenderEnd.bind(this)
+    this.mindMap.on('node_img_mouseleave', this.onNodeImgMouseleave)
+    this.mindMap.on('node_img_mousemove', this.onNodeImgMousemove)
+    this.mindMap.on('mousemove', this.onMousemove)
+    this.mindMap.on('mouseup', this.onMouseup)
+    this.mindMap.on('node_mouseup', this.onMouseup)
+    this.mindMap.on('node_tree_render_end', this.onRenderEnd)
+  }
+
+  // 解绑事件
+  unBindEvent() {
+    this.mindMap.off('node_img_mouseleave', this.onNodeImgMouseleave)
+    this.mindMap.off('node_img_mousemove', this.onNodeImgMousemove)
+    this.mindMap.off('mousemove', this.onMousemove)
+    this.mindMap.off('mouseup', this.onMouseup)
+    this.mindMap.off('node_mouseup', this.onMouseup)
+    this.mindMap.off('node_tree_render_end', this.onRenderEnd)
+  }
+
+  // 节点图片鼠标移动事件
+  onNodeImgMousemove(node, img) {
+    // 如果当前正在拖动调整中那么直接返回
+    if (this.isMousedown || this.isAdjusted || this.mindMap.opt.readonly) return
+    // 如果在当前节点内移动，以及自定义元素已经是显示状态，那么直接返回
+    if (this.node === node && this.isShowHandleEl) return
+    // 更新当前节点信息
+    this.node = node
+    this.img = img
+    this.rect = this.img.rbox()
+    // 显示自定义元素
+    this.showHandleEl()
+  }
+
+  // 节点图片鼠标移出事件
+  onNodeImgMouseleave() {
+    if (this.isMousedown) return
+    this.hideHandleEl()
+  }
+
+  // 隐藏节点实际的图片
+  hideNodeImage() {
+    if (!this.img) return
+    this.img.hide()
+  }
+
+  // 显示节点实际的图片
+  showNodeImage() {
+    if (!this.img) return
+    this.img.show()
+  }
+
+  // 显示自定义元素
+  showHandleEl() {
+    if (!this.handleEl) {
+      this.createResizeBtnEl()
+    }
+    this.setHandleElRect()
+    document.body.appendChild(this.handleEl)
+    this.isShowHandleEl = true
+  }
+
+  // 隐藏自定义元素
+  hideHandleEl() {
+    if (!this.isShowHandleEl) return
+    this.isShowHandleEl = false
+    document.body.removeChild(this.handleEl)
+    this.handleEl.style.backgroundImage = ``
+    this.handleEl.style.width = 0
+    this.handleEl.style.height = 0
+    this.handleEl.style.left = 0
+    this.handleEl.style.top = 0
+  }
+
+  // 设置自定义元素尺寸位置信息
+  setHandleElRect() {
+    let { width, height, x, y } = this.rect
+    this.handleEl.style.left = `${x}px`
+    this.handleEl.style.top = `${y}px`
+    this.currentImgWidth = width
+    this.currentImgHeight = height
+    this.updateHandleElSize()
+  }
+
+  // 更新自定义元素宽高
+  updateHandleElSize() {
+    this.handleEl.style.width = `${this.currentImgWidth}px`
+    this.handleEl.style.height = `${this.currentImgHeight}px`
+  }
+
+  // 创建调整按钮元素
+  createResizeBtnEl() {
+    // 容器元素
+    this.handleEl = document.createElement('div')
+    this.handleEl.style.cssText = `
+      pointer-events: none;
+      position: fixed;
+      background-size: cover;
+    `
+    // 调整按钮元素
+    const btnEl = document.createElement('div')
+    btnEl.innerHTML = btnsSvg.imgAdjust
+    btnEl.style.cssText = `
+      position: absolute;
+      right: 0;
+      bottom: 0;
+      pointer-events: auto;
+      background-color: rgba(0, 0, 0, 0.3);
+      width: ${this.resizeBtnSize}px;
+      height: ${this.resizeBtnSize}px;
+      display: flex;
+      justify-content: center;
+      align-items: center;
+      cursor: nwse-resize;
+    `
+    this.handleEl.appendChild(btnEl)
+    // 给按钮元素绑定事件
+    btnEl.addEventListener('mouseenter', () => {
+      // 移入按钮，会触发节点图片的移出事件，所以需要再次显示按钮
+      this.showHandleEl()
+    })
+    btnEl.addEventListener('mouseleave', () => {
+      // 移除按钮，需要隐藏按钮
+      if (this.isMousedown) return
+      this.hideHandleEl()
+    })
+    btnEl.addEventListener('mousedown', e => {
+      this.onMousedown(e)
+    })
+  }
+
+  // 鼠标按钮按下事件
+  onMousedown() {
+    this.isMousedown = true
+    // 隐藏节点实际图片
+    this.hideNodeImage()
+    // 将节点图片渲染到自定义元素上
+    this.handleEl.style.backgroundImage = `url(${this.node.nodeData.data.image})`
+  }
+
+  // 鼠标移动
+  onMousemove(e) {
+    if (!this.isMousedown) return
+    e.preventDefault()
+    // 计算当前拖拽位置对应的图片的实时大小
+    let { width: imageOriginWidth, height: imageOriginHeight } =
+      this.node.nodeData.data.imageSize
+    let newWidth = e.clientX - this.rect.x
+    let newHeight = e.clientY - this.rect.y
+    if (newWidth <= 0 || newHeight <= 0) return
+    let [actWidth, actHeight] = resizeImgSizeByOriginRatio(
+      imageOriginWidth,
+      imageOriginHeight,
+      newWidth,
+      newHeight
+    )
+    this.currentImgWidth = actWidth
+    this.currentImgHeight = actHeight
+    this.updateHandleElSize()
+  }
+
+  // 鼠标松开
+  onMouseup() {
+    if (!this.isMousedown) return
+    // 显示节点实际图片
+    this.showNodeImage()
+    // 隐藏自定义元素
+    this.hideHandleEl()
+    // 更新节点图片为新的大小
+    let { image, imageTitle } = this.node.nodeData.data
+    let { scaleX, scaleY } = this.mindMap.draw.transform()
+    this.mindMap.execCommand('SET_NODE_IMAGE', this.node, {
+      url: image,
+      title: imageTitle,
+      width: this.currentImgWidth / scaleX,
+      height: this.currentImgHeight / scaleY,
+      custom: true // 代表自定义了图片大小
+    })
+    this.isAdjusted = true
+    this.isMousedown = false
+  }
+
+  // 渲染完成事件
+  onRenderEnd() {
+    if (!this.isAdjusted) return
+    this.isAdjusted = false
+  }
+
+  // 插件被移除前做的事情
+  beforePluginRemove() {
+    this.unBindEvent()
+  }
+}
+
+NodeImgAdjust.instanceName = 'nodeImgAdjust'
+
+export default NodeImgAdjust

simple-mind-map/src/plugins/RichText.js

@@ -0,0 +1,556 @@
+import Quill from 'quill'
+import 'quill/dist/quill.snow.css'
+import html2canvas from 'html2canvas'
+import { walk, getTextFromHtml } from '../utils'
+import { CONSTANTS } from '../constants/constant'
+
+let extended = false
+
+// 扩展quill的字体列表
+let fontFamilyList = [
+  '宋体, SimSun, Songti SC',
+  '微软雅黑, Microsoft YaHei',
+  '楷体, 楷体_GB2312, SimKai, STKaiti',
+  '黑体, SimHei, Heiti SC',
+  '隶书, SimLi',
+  'andale mono',
+  'arial, helvetica, sans-serif',
+  'arial black, avant garde',
+  'comic sans ms',
+  'impact, chicago',
+  'times new roman',
+  'sans-serif',
+  'serif'
+]
+
+// 扩展quill的字号列表
+let fontSizeList = new Array(100).fill(0).map((_, index) => {
+  return index + 'px'
+})
+
+// 富文本编辑插件
+class RichText {
+  constructor({ mindMap, pluginOpt }) {
+    this.mindMap = mindMap
+    this.pluginOpt = pluginOpt
+    this.textEditNode = null
+    this.showTextEdit = false
+    this.quill = null
+    this.range = null
+    this.lastRange = null
+    this.node = null
+    this.isInserting = false
+    this.styleEl = null
+    this.cacheEditingText = ''
+    this.lostStyle = false
+    this.isCompositing = false
+    this.initOpt()
+    this.extendQuill()
+    this.appendCss()
+    this.bindEvent()
+
+    // 处理数据，转成富文本格式
+    if (this.mindMap.opt.data) {
+      this.mindMap.opt.data = this.handleSetData(this.mindMap.opt.data)
+    }
+  }
+
+  // 绑定事件
+  bindEvent() {
+    this.onCompositionStart = this.onCompositionStart.bind(this)
+    this.onCompositionEnd = this.onCompositionEnd.bind(this)
+    window.addEventListener('compositionstart', this.onCompositionStart)
+    window.addEventListener('compositionend', this.onCompositionEnd)
+  }
+
+  // 解绑事件
+  unbindEvent() {
+    window.removeEventListener('compositionstart', this.onCompositionStart)
+    window.removeEventListener('compositionend', this.onCompositionEnd)
+  }
+
+  // 插入样式
+  appendCss() {
+    let cssText = `
+      .ql-editor {
+        overflow: hidden;
+        padding: 0;
+        height: auto;
+        line-height: normal;
+        -webkit-user-select: text;
+      }
+      
+      .ql-container {
+        height: auto;
+        font-size: inherit;
+      }
+
+      .ql-container.ql-snow {
+        border: none;
+      }
+
+      .smm-richtext-node-wrap p {
+        font-family: auto;
+      }
+
+      .smm-richtext-node-edit-wrap p {
+        font-family: auto;
+      }
+    `
+    this.styleEl = document.createElement('style')
+    this.styleEl.type = 'text/css'
+    this.styleEl.innerHTML = cssText
+    document.head.appendChild(this.styleEl)
+  }
+
+  // 处理选项参数
+  initOpt() {
+    if (
+      this.pluginOpt.fontFamilyList &&
+      Array.isArray(this.pluginOpt.fontFamilyList)
+    ) {
+      fontFamilyList = this.pluginOpt.fontFamilyList
+    }
+    if (
+      this.pluginOpt.fontSizeList &&
+      Array.isArray(this.pluginOpt.fontSizeList)
+    ) {
+      fontSizeList = this.pluginOpt.fontSizeList
+    }
+  }
+
+  // 扩展quill编辑器
+  extendQuill() {
+    if (extended) {
+      return
+    }
+    extended = true
+
+    // 扩展quill的字体列表
+    const FontAttributor = Quill.import('attributors/class/font')
+    FontAttributor.whitelist = fontFamilyList
+    Quill.register(FontAttributor, true)
+
+    const FontStyle = Quill.import('attributors/style/font')
+    FontStyle.whitelist = fontFamilyList
+    Quill.register(FontStyle, true)
+
+    // 扩展quill的字号列表
+    const SizeAttributor = Quill.import('attributors/class/size')
+    SizeAttributor.whitelist = fontSizeList
+    Quill.register(SizeAttributor, true)
+
+    const SizeStyle = Quill.import('attributors/style/size')
+    SizeStyle.whitelist = fontSizeList
+    Quill.register(SizeStyle, true)
+  }
+
+  // 显示文本编辑控件
+  showEditText(node, rect, isInserting) {
+    if (this.showTextEdit) {
+      return
+    }
+    this.node = node
+    this.isInserting = isInserting
+    if (!rect) rect = node._textData.node.node.getBoundingClientRect()
+    this.mindMap.emit('before_show_text_edit')
+    this.mindMap.renderer.textEdit.registerTmpShortcut()
+    // 原始宽高
+    let g = node._textData.node
+    let originWidth = g.attr('data-width')
+    let originHeight = g.attr('data-height')
+    // 缩放值
+    let scaleX = rect.width / originWidth
+    let scaleY = rect.height / originHeight
+    // 内边距
+    const paddingX = 6
+    const paddingY = 4
+    if (!this.textEditNode) {
+      this.textEditNode = document.createElement('div')
+      this.textEditNode.classList.add('smm-richtext-node-edit-wrap')
+      this.textEditNode.style.cssText = `position:fixed;box-sizing: border-box;box-shadow: 0 0 20px rgba(0,0,0,.5);outline: none; word-break: break-all;padding: ${paddingY}px ${paddingX}px;`
+      this.textEditNode.addEventListener('click', e => {
+        e.stopPropagation()
+      })
+      document.body.appendChild(this.textEditNode)
+    }
+    // 使用节点的填充色，否则如果节点颜色是白色的话编辑时看不见
+    let bgColor = node.style.merge('fillColor')
+    this.textEditNode.style.marginLeft = `-${paddingX * scaleX}px`
+    this.textEditNode.style.marginTop = `-${paddingY * scaleY}px`
+    this.textEditNode.style.zIndex = this.mindMap.opt.nodeTextEditZIndex
+    this.textEditNode.style.backgroundColor =
+      bgColor === 'transparent' ? '#fff' : bgColor
+    this.textEditNode.style.minWidth = originWidth + paddingX * 2 + 'px'
+    this.textEditNode.style.minHeight = originHeight + 'px'
+    this.textEditNode.style.left = rect.left + 'px'
+    this.textEditNode.style.top = rect.top + 'px'
+    this.textEditNode.style.display = 'block'
+    this.textEditNode.style.maxWidth =
+      this.mindMap.opt.textAutoWrapWidth + paddingX * 2 + 'px'
+    this.textEditNode.style.transform = `scale(${scaleX}, ${scaleY})`
+    this.textEditNode.style.transformOrigin = 'left top'
+    if (!node.nodeData.data.richText) {
+      // 还不是富文本的情况
+      let text = node.nodeData.data.text.split(/\n/gim).join('<br>')
+      let html = `<p>${text}</p>`
+      this.textEditNode.innerHTML = this.cacheEditingText || html
+    } else {
+      this.textEditNode.innerHTML =
+        this.cacheEditingText || node.nodeData.data.text
+    }
+    this.initQuillEditor()
+    document.querySelector('.ql-editor').style.minHeight = originHeight + 'px'
+    this.showTextEdit = true
+    // 如果是刚创建的节点，那么默认全选，否则普通激活不全选
+    this.focus(isInserting ? 0 : null)
+    if (!node.nodeData.data.richText) {
+      // 如果是非富文本的情况，需要手动应用文本样式
+      this.setTextStyleIfNotRichText(node)
+    }
+    this.cacheEditingText = ''
+  }
+
+  // 如果是非富文本的情况，需要手动应用文本样式
+  setTextStyleIfNotRichText(node) {
+    let style = {
+      font: node.style.merge('fontFamily'),
+      color: node.style.merge('color'),
+      italic: node.style.merge('fontStyle') === 'italic',
+      bold: node.style.merge('fontWeight') === 'bold',
+      size: node.style.merge('fontSize') + 'px',
+      underline: node.style.merge('textDecoration') === 'underline',
+      strike: node.style.merge('textDecoration') === 'line-through'
+    }
+    this.pureFormatAllText(style)
+  }
+
+  // 获取当前正在编辑的内容
+  getEditText() {
+    let html = this.quill.container.firstChild.innerHTML
+    // 去除最后的空行
+    return html.replace(/<p><br><\/p>$/, '')
+  }
+
+  // 隐藏文本编辑控件，即完成编辑
+  hideEditText(nodes) {
+    if (!this.showTextEdit) {
+      return
+    }
+    let html = this.getEditText()
+    let list =
+      nodes && nodes.length > 0 ? nodes : this.mindMap.renderer.activeNodeList
+    list.forEach(node => {
+      this.mindMap.execCommand('SET_NODE_TEXT', node, html, true)
+      if (node.isGeneralization) {
+        // 概要节点
+        node.generalizationBelongNode.updateGeneralization()
+      }
+      this.mindMap.render()
+    })
+    this.mindMap.emit('hide_text_edit', this.textEditNode, list)
+    this.textEditNode.style.display = 'none'
+    this.showTextEdit = false
+    this.mindMap.emit('rich_text_selection_change', false)
+    this.node = null
+    this.isInserting = false
+  }
+
+  // 初始化Quill富文本编辑器
+  initQuillEditor() {
+    this.quill = new Quill(this.textEditNode, {
+      modules: {
+        toolbar: false,
+        keyboard: {
+          bindings: {
+            enter: {
+              key: 13,
+              handler: function () {
+                // 覆盖默认的回车键换行
+              }
+            },
+            tab: {
+              key: 9,
+              handler: function () {
+                // 覆盖默认的tab键
+              }
+            }
+          }
+        }
+      },
+      theme: 'snow'
+    })
+    this.quill.on('selection-change', range => {
+      // 刚创建的节点全选不需要显示操作条
+      if (this.isInserting) return
+      this.lastRange = this.range
+      this.range = null
+      if (range) {
+        let bounds = this.quill.getBounds(range.index, range.length)
+        let rect = this.textEditNode.getBoundingClientRect()
+        let rectInfo = {
+          left: bounds.left + rect.left,
+          top: bounds.top + rect.top,
+          right: bounds.right + rect.left,
+          bottom: bounds.bottom + rect.top,
+          width: bounds.width
+        }
+        let formatInfo = this.quill.getFormat(range.index, range.length)
+        let hasRange = false
+        if (range.length == 0) {
+          hasRange = false
+        } else {
+          this.range = range
+          hasRange = true
+        }
+        this.mindMap.emit(
+          'rich_text_selection_change',
+          hasRange,
+          rectInfo,
+          formatInfo
+        )
+      }
+    })
+    this.quill.on('text-change', () => {
+      let contents = this.quill.getContents()
+      let len = contents.ops.length
+      // 如果编辑过程中删除所有字符，那么会丢失主题的样式
+      if (len <= 0 || (len === 1 && contents.ops[0].insert === '\n')) {
+        this.lostStyle = true
+        // 需要删除节点的样式数据
+        this.syncFormatToNodeConfig(null, true)
+      } else if (this.lostStyle && !this.isCompositing) {
+        // 如果处于样式丢失状态，那么需要进行格式化加回样式
+        this.setTextStyleIfNotRichText(this.node)
+        this.lostStyle = false
+      }
+    })
+  }
+
+  // 正则输入中文
+  onCompositionStart() {
+    if (!this.showTextEdit) {
+      return
+    }
+    this.isCompositing = true
+  }
+
+  // 中文输入结束
+  onCompositionEnd() {
+    if (!this.showTextEdit || !this.lostStyle) {
+      return
+    }
+    this.isCompositing = false
+    this.setTextStyleIfNotRichText(this.node)
+  }
+
+  // 选中全部
+  selectAll() {
+    this.quill.setSelection(0, this.quill.getLength())
+  }
+
+  // 聚焦
+  focus(start) {
+    let len = this.quill.getLength()
+    this.quill.setSelection(typeof start === 'number' ? start : len, len)
+  }
+
+  // 格式化当前选中的文本
+  formatText(config = {}, clear = false) {
+    if (!this.range && !this.lastRange) return
+    this.syncFormatToNodeConfig(config, clear)
+    let rangeLost = !this.range
+    let range = rangeLost ? this.lastRange : this.range
+    clear
+      ? this.quill.removeFormat(range.index, range.length)
+      : this.quill.formatText(range.index, range.length, config)
+    if (rangeLost) {
+      this.quill.setSelection(this.lastRange.index, this.lastRange.length)
+    }
+  }
+
+  // 清除当前选中文本的样式
+  removeFormat() {
+    this.formatText({}, true)
+  }
+
+  // 格式化指定范围的文本
+  formatRangeText(range, config = {}) {
+    if (!range) return
+    this.syncFormatToNodeConfig(config)
+    this.quill.formatText(range.index, range.length, config)
+  }
+
+  // 格式化所有文本
+  formatAllText(config = {}) {
+    this.syncFormatToNodeConfig(config)
+    this.pureFormatAllText(config)
+  }
+
+  // 纯粹的格式化所有文本
+  pureFormatAllText(config = {}) {
+    this.quill.formatText(0, this.quill.getLength(), config)
+  }
+
+  // 同步格式化到节点样式配置
+  syncFormatToNodeConfig(config, clear) {
+    if (!this.node) return
+    if (clear) {
+      // 清除文本样式
+      ;[
+        'fontFamily',
+        'fontSize',
+        'fontWeight',
+        'fontStyle',
+        'textDecoration',
+        'color'
+      ].forEach(prop => {
+        delete this.node.nodeData.data[prop]
+      })
+    } else {
+      let data = this.richTextStyleToNormalStyle(config)
+      this.mindMap.renderer.setNodeData(this.node, data)
+    }
+  }
+
+  // 将普通节点样式对象转换成富文本样式对象
+  normalStyleToRichTextStyle(style) {
+    let config = {}
+    Object.keys(style).forEach(prop => {
+      let value = style[prop]
+      switch (prop) {
+        case 'fontFamily':
+          config.font = value
+          break
+        case 'fontSize':
+          config.size = value + 'px'
+          break
+        case 'fontWeight':
+          config.bold = value === 'bold'
+          break
+        case 'fontStyle':
+          config.italic = value === 'italic'
+          break
+        case 'textDecoration':
+          config.underline = value === 'underline'
+          config.strike = value === 'line-through'
+          break
+        case 'color':
+          config.color = value
+          break
+        default:
+          break
+      }
+    })
+    return config
+  }
+
+  // 将富文本样式对象转换成普通节点样式对象
+  richTextStyleToNormalStyle(config) {
+    let data = {}
+    Object.keys(config).forEach(prop => {
+      let value = config[prop]
+      switch (prop) {
+        case 'font':
+          data.fontFamily = value
+          break
+        case 'size':
+          data.fontSize = parseFloat(value)
+          break
+        case 'bold':
+          data.fontWeight = value ? 'bold' : 'normal'
+          break
+        case 'italic':
+          data.fontStyle = value ? 'italic' : 'normal'
+          break
+        case 'underline':
+          data.textDecoration = value ? 'underline' : 'none'
+          break
+        case 'strike':
+          data.textDecoration = value ? 'line-through' : 'none'
+          break
+        case 'color':
+          data.color = value
+          break
+        default:
+          break
+      }
+    })
+    return data
+  }
+
+  // 处理导出为图片
+  async handleExportPng(node) {
+    let el = document.createElement('div')
+    el.style.position = 'absolute'
+    el.style.left = '-9999999px'
+    el.appendChild(node)
+    this.mindMap.el.appendChild(el)
+    // 遍历所有节点，将它们的margin和padding设为0
+    let walk = root => {
+      root.style.margin = 0
+      root.style.padding = 0
+      if (root.hasChildNodes()) {
+        Array.from(root.children).forEach(item => {
+          walk(item)
+        })
+      }
+    }
+    walk(node)
+    let canvas = await html2canvas(el, {
+      backgroundColor: null
+    })
+    this.mindMap.el.removeChild(el)
+    return canvas.toDataURL()
+  }
+
+  // 将所有节点转换成非富文本节点
+  transformAllNodesToNormalNode() {
+    walk(
+      this.mindMap.renderer.renderTree,
+      null,
+      node => {
+        if (node.data.richText) {
+          node.data.richText = false
+          node.data.text = getTextFromHtml(node.data.text)
+          // delete node.data.uid
+        }
+      },
+      null,
+      true,
+      0,
+      0
+    )
+    // 清空历史数据，并且触发数据变化
+    this.mindMap.command.clearHistory()
+    this.mindMap.command.addHistory()
+    this.mindMap.render(null, CONSTANTS.TRANSFORM_TO_NORMAL_NODE)
+  }
+
+  // 处理导入数据
+  handleSetData(data) {
+    let walk = root => {
+      if (!root.data.richText) {
+        root.data.richText = true
+        root.data.resetRichText = true
+      }
+      if (root.children && root.children.length > 0) {
+        Array.from(root.children).forEach(item => {
+          walk(item)
+        })
+      }
+    }
+    walk(data)
+    return data
+  }
+
+  // 插件被移除前做的事情
+  beforePluginRemove() {
+    this.transformAllNodesToNormalNode()
+    document.head.removeChild(this.styleEl)
+  }
+}
+
+RichText.instanceName = 'richText'
+
+export default RichText

simple-mind-map/src/plugins/Search.js

@@ -0,0 +1,151 @@
+import { bfsWalk, getTextFromHtml } from '../utils/index'
+
+// 搜索插件
+class Search {
+  //  构造函数
+  constructor({ mindMap }) {
+    this.mindMap = mindMap
+    // 是否正在搜索
+    this.isSearching = false
+    // 搜索文本
+    this.searchText = ''
+    // 匹配的节点列表
+    this.matchNodeList = []
+    // 当前所在的节点列表索引
+    this.currentIndex = -1
+    // 不要复位搜索文本
+    this.notResetSearchText = false
+    this.onDataChange = this.onDataChange.bind(this)
+    this.mindMap.on('data_change', this.onDataChange)
+  }
+
+  // 节点数据改变了，需要重新搜索
+  onDataChange() {
+    if (this.notResetSearchText) {
+      this.notResetSearchText = false
+      return
+    }
+    this.searchText = ''
+  }
+
+  // 搜索
+  search(text, callback) {
+    text = String(text).trim()
+    if (!text) return this.endSearch()
+    this.isSearching = true
+    if (this.searchText === text) {
+      // 和上一次搜索文本一样，那么搜索下一个
+      this.searchNext(callback)
+    } else {
+      // 和上次搜索文本不一样，那么重新开始
+      this.searchText = text
+      this.doSearch()
+      this.searchNext(callback)
+    }
+    this.emitEvent()
+  }
+
+  // 结束搜索
+  endSearch() {
+    if (!this.isSearching) return
+    this.searchText = ''
+    this.matchNodeList = []
+    this.currentIndex = -1
+    this.notResetSearchText = false
+    this.isSearching = false
+    this.emitEvent()
+  }
+
+  // 搜索匹配的节点
+  doSearch() {
+    this.matchNodeList = []
+    this.currentIndex = -1
+    bfsWalk(this.mindMap.renderer.root, node => {
+      let { richText, text } = node.nodeData.data
+      if (richText) {
+        text = getTextFromHtml(text)
+      }
+      if (text.includes(this.searchText)) {
+        this.matchNodeList.push(node)
+      }
+    })
+  }
+
+  // 搜索下一个，定位到下一个匹配节点
+  searchNext(callback) {
+    if (!this.isSearching || this.matchNodeList.length <= 0) return
+    if (this.currentIndex < this.matchNodeList.length - 1) {
+      this.currentIndex++
+    } else {
+      this.currentIndex = 0
+    }
+    let currentNode = this.matchNodeList[this.currentIndex]
+    this.notResetSearchText = true
+    this.mindMap.execCommand('GO_TARGET_NODE', currentNode, () => {
+      callback()
+    })
+  }
+
+  // 替换当前节点
+  replace(replaceText) {
+    replaceText = String(replaceText).trim()
+    if (!replaceText || !this.isSearching || this.matchNodeList.length <= 0)
+      return
+    let currentNode = this.matchNodeList[this.currentIndex]
+    if (!currentNode) return
+    let text = this.getReplacedText(currentNode, this.searchText, replaceText)
+    this.notResetSearchText = true
+    currentNode.setText(text, currentNode.nodeData.data.richText)
+    this.matchNodeList = this.matchNodeList.filter(node => {
+      return currentNode !== node
+    })
+    if (this.currentIndex > this.matchNodeList.length - 1) {
+      this.currentIndex = -1
+    } else {
+      this.currentIndex--
+    }
+    this.emitEvent()
+  }
+
+  // 替换所有
+  replaceAll(replaceText) {
+    replaceText = String(replaceText).trim()
+    if (!replaceText || !this.isSearching || this.matchNodeList.length <= 0)
+      return
+    this.matchNodeList.forEach(node => {
+      let text = this.getReplacedText(node, this.searchText, replaceText)
+      this.mindMap.renderer.setNodeDataRender(
+        node,
+        {
+          text,
+          resetRichText: !!node.nodeData.data.richText
+        },
+        true
+      )
+    })
+    this.mindMap.render()
+    this.mindMap.command.addHistory()
+    this.endSearch()
+  }
+
+  // 获取某个节点替换后的文本
+  getReplacedText(node, searchText, replaceText) {
+    let { richText, text } = node.nodeData.data
+    if (richText) {
+      text = getTextFromHtml(text)
+    }
+    return text.replaceAll(searchText, replaceText)
+  }
+
+  // 发送事件
+  emitEvent() {
+    this.mindMap.emit('search_info_change', {
+      currentIndex: this.currentIndex,
+      total: this.matchNodeList.length
+    })
+  }
+}
+
+Search.instanceName = 'search'
+
+export default Search

simple-mind-map/src/plugins/Select.js

@@ -0,0 +1,179 @@
+import { bfsWalk, throttle } from '../utils'
+
+// 节点选择插件
+class Select {
+  //  构造函数
+  constructor({ mindMap }) {
+    this.mindMap = mindMap
+    this.rect = null
+    this.isMousedown = false
+    this.mouseDownX = 0
+    this.mouseDownY = 0
+    this.mouseMoveX = 0
+    this.mouseMoveY = 0
+    this.bindEvent()
+  }
+
+  //  绑定事件
+  bindEvent() {
+    this.checkInNodes = throttle(this.checkInNodes, 300, this)
+    this.mindMap.on('mousedown', e => {
+      if (this.mindMap.opt.readonly) {
+        return
+      }
+      let { useLeftKeySelectionRightKeyDrag } = this.mindMap.opt
+      if (
+        !e.ctrlKey &&
+        (useLeftKeySelectionRightKeyDrag ? e.which !== 1 : e.which !== 3)
+      ) {
+        return
+      }
+      e.preventDefault()
+      this.isMousedown = true
+      let { x, y } = this.mindMap.toPos(e.clientX, e.clientY)
+      this.mouseDownX = x
+      this.mouseDownY = y
+      this.createRect(x, y)
+    })
+    this.mindMap.on('mousemove', e => {
+      if (this.mindMap.opt.readonly) {
+        return
+      }
+      if (!this.isMousedown) {
+        return
+      }
+      let { x, y } = this.mindMap.toPos(e.clientX, e.clientY)
+      this.mouseMoveX = x
+      this.mouseMoveY = y
+      if (
+        Math.abs(x - this.mouseDownX) <= 10 &&
+        Math.abs(y - this.mouseDownY) <= 10
+      ) {
+        return
+      }
+      clearTimeout(this.autoMoveTimer)
+      this.onMove(x, y)
+    })
+    this.mindMap.on('mouseup', () => {
+      if (this.mindMap.opt.readonly) {
+        return
+      }
+      if (!this.isMousedown) {
+        return
+      }
+      this.mindMap.emit(
+        'node_active',
+        null,
+        this.mindMap.renderer.activeNodeList
+      )
+      clearTimeout(this.autoMoveTimer)
+      this.isMousedown = false
+      if (this.rect) this.rect.remove()
+      this.rect = null
+    })
+  }
+
+  //  鼠标移动事件
+  onMove(x, y) {
+    // 绘制矩形
+    this.rect.plot([
+      [this.mouseDownX, this.mouseDownY],
+      [this.mouseMoveX, this.mouseDownY],
+      [this.mouseMoveX, this.mouseMoveY],
+      [this.mouseDownX, this.mouseMoveY]
+    ])
+    this.checkInNodes()
+    // 检测边缘移动
+    let step = this.mindMap.opt.selectTranslateStep
+    let limit = this.mindMap.opt.selectTranslateLimit
+    let count = 0
+    // 左边缘
+    if (x <= this.mindMap.elRect.left + limit) {
+      this.mouseDownX += step
+      this.mindMap.view.translateX(step)
+      count++
+    }
+    // 右边缘
+    if (x >= this.mindMap.elRect.right - limit) {
+      this.mouseDownX -= step
+      this.mindMap.view.translateX(-step)
+      count++
+    }
+    // 上边缘
+    if (y <= this.mindMap.elRect.top + limit) {
+      this.mouseDownY += step
+      this.mindMap.view.translateY(step)
+      count++
+    }
+    // 下边缘
+    if (y >= this.mindMap.elRect.bottom - limit) {
+      this.mouseDownY -= step
+      this.mindMap.view.translateY(-step)
+      count++
+    }
+    if (count > 0) {
+      this.startAutoMove(x, y)
+    }
+  }
+
+  //  开启自动移动
+  startAutoMove(x, y) {
+    this.autoMoveTimer = setTimeout(() => {
+      this.onMove(x, y)
+    }, 20)
+  }
+
+  //  创建矩形
+  createRect(x, y) {
+    this.rect = this.mindMap.svg
+      .polygon()
+      .stroke({
+        color: '#0984e3'
+      })
+      .fill({
+        color: 'rgba(9,132,227,0.3)'
+      })
+      .plot([[x, y]])
+  }
+
+  //  检测在选区里的节点
+  checkInNodes() {
+    let { scaleX, scaleY, translateX, translateY } =
+      this.mindMap.draw.transform()
+    let minx = Math.min(this.mouseDownX, this.mouseMoveX)
+    let miny = Math.min(this.mouseDownY, this.mouseMoveY)
+    let maxx = Math.max(this.mouseDownX, this.mouseMoveX)
+    let maxy = Math.max(this.mouseDownY, this.mouseMoveY)
+    bfsWalk(this.mindMap.renderer.root, node => {
+      let { left, top, width, height } = node
+      let right = (left + width) * scaleX + translateX
+      let bottom = (top + height) * scaleY + translateY
+      left = left * scaleX + translateX
+      top = top * scaleY + translateY
+      if (
+        ((left >= minx && left <= maxx) || (right >= minx && right <= maxx)) &&
+        ((top >= miny && top <= maxy) || (bottom >= miny && bottom <= maxy))
+      ) {
+        // this.mindMap.batchExecution.push('activeNode' + node.uid, () => {
+        if (node.nodeData.data.isActive) {
+          return
+        }
+        this.mindMap.renderer.setNodeActive(node, true)
+        this.mindMap.renderer.addActiveNode(node)
+        // })
+      } else if (node.nodeData.data.isActive) {
+        // this.mindMap.batchExecution.push('activeNode' + node.uid, () => {
+        if (!node.nodeData.data.isActive) {
+          return
+        }
+        this.mindMap.renderer.setNodeActive(node, false)
+        this.mindMap.renderer.removeActiveNode(node)
+        // })
+      }
+    })
+  }
+}
+
+Select.instanceName = 'select'
+
+export default Select

simple-mind-map/src/plugins/TouchEvent.js

@@ -0,0 +1,126 @@
+// 手势事件支持插件
+class TouchEvent {
+  //  构造函数
+  constructor({ mindMap }) {
+    this.mindMap = mindMap
+    this.touchesNum = 0
+    this.singleTouchstartEvent = null
+    this.clickNum = 0
+    this.doubleTouchmoveDistance = 0
+    this.bindEvent()
+  }
+
+  // 绑定事件
+  bindEvent() {
+    this.onTouchstart = this.onTouchstart.bind(this)
+    this.onTouchmove = this.onTouchmove.bind(this)
+    this.onTouchcancel = this.onTouchcancel.bind(this)
+    this.onTouchend = this.onTouchend.bind(this)
+    window.addEventListener('touchstart', this.onTouchstart)
+    window.addEventListener('touchmove', this.onTouchmove)
+    window.addEventListener('touchcancel', this.onTouchcancel)
+    window.addEventListener('touchend', this.onTouchend)
+  }
+
+  // 解绑事件
+  unBindEvent() {
+    window.removeEventListener('touchstart', this.onTouchstart)
+    window.removeEventListener('touchmove', this.onTouchmove)
+    window.removeEventListener('touchcancel', this.onTouchcancel)
+    window.removeEventListener('touchend', this.onTouchend)
+  }
+
+  // 手指按下事件
+  onTouchstart(e) {
+    this.touchesNum = e.touches.length
+    if (this.touchesNum === 1) {
+      let touch = e.touches[0]
+      this.singleTouchstartEvent = touch
+      this.dispatchMouseEvent('mousedown', touch.target, touch)
+    }
+  }
+
+  // 手指移动事件
+  onTouchmove(e) {
+    let len = e.touches.length
+    if (len === 1) {
+      let touch = e.touches[0]
+      this.dispatchMouseEvent('mousemove', touch.target, touch)
+    } else if (len === 2) {
+      let touch1 = e.touches[0]
+      let touch2 = e.touches[1]
+      let ox = touch1.clientX - touch2.clientX
+      let oy = touch1.clientY - touch2.clientY
+      let distance = Math.sqrt(Math.pow(ox, 2) + Math.pow(oy, 2))
+      // 以两指中心点进行缩放
+      let { x: touch1ClientX, y: touch1ClientY } = this.mindMap.toPos(touch1.clientX, touch1.clientY)
+      let { x: touch2ClientX, y: touch2ClientY } = this.mindMap.toPos(touch2.clientX, touch2.clientY)
+      let cx = (touch1ClientX + touch2ClientX) / 2
+      let cy = (touch1ClientY + touch2ClientY) / 2
+      if (distance > this.doubleTouchmoveDistance) {
+        // 放大
+        this.mindMap.view.enlarge(cx, cy)
+      } else {
+        // 缩小
+        this.mindMap.view.narrow(cx, cy)
+      }
+      this.doubleTouchmoveDistance = distance
+    }
+  }
+
+  // 手指取消事件
+  onTouchcancel(e) {}
+
+  // 手指松开事件
+  onTouchend(e) {
+    this.dispatchMouseEvent('mouseup', e.target)
+    if (this.touchesNum === 1) {
+      // 模拟双击事件
+      this.clickNum++
+      setTimeout(() => {
+        this.clickNum = 0
+      }, 300)
+      let ev = this.singleTouchstartEvent
+      if (this.clickNum > 1) {
+        this.clickNum = 0
+        this.dispatchMouseEvent('dblclick', ev.target, ev)
+      } else {
+        // 点击事件应该不用模拟
+        // this.dispatchMouseEvent('click', ev.target, ev)
+      }
+    }
+    this.touchesNum = 0
+    this.singleTouchstartEvent = null
+    this.doubleTouchmoveDistance = 0
+  }
+
+  // 发送鼠标事件
+  dispatchMouseEvent(eventName, target, e) {
+    let opt = {}
+    if (e) {
+      opt = {
+        screenX: e.screenX,
+        screenY: e.screenY,
+        clientX: e.clientX,
+        clientY: e.clientY,
+        which: 1
+      }
+    }
+    let event = new MouseEvent(eventName, {
+      view: window,
+      bubbles: true,
+      cancelable: true,
+      ...opt
+    })
+    target.dispatchEvent(event)
+  }
+
+  // 插件被移除前做的事情
+  beforePluginRemove() {
+    this.unBindEvent()
+  }
+}
+
+TouchEvent.instanceName = 'touchEvent'
+
+export default TouchEvent

simple-mind-map/src/plugins/Watermark.js

@@ -0,0 +1,120 @@
+import { Text, G } from '@svgdotjs/svg.js'
+import { degToRad, camelCaseToHyphen } from '../utils'
+import merge from 'deepmerge'
+
+// 水印插件
+class Watermark {
+  constructor(opt = {}) {
+    this.mindMap = opt.mindMap
+    this.lineSpacing = 0 // 水印行间距
+    this.textSpacing = 0 // 行内水印间距
+    this.angle = 0 // 旋转角度
+    this.text = '' // 水印文字
+    this.textStyle = {} // 水印文字样式
+    this.watermarkDraw = this.mindMap.svg
+      .group()
+      .css({ 'pointer-events': 'none', 'user-select': 'none' })
+    this.maxLong = Math.sqrt(
+      Math.pow(this.mindMap.width, 2) + Math.pow(this.mindMap.height, 2)
+    )
+    this.updateWatermark(this.mindMap.opt.watermarkConfig || {})
+  }
+
+  // 获取是否存在水印
+  hasWatermark() {
+    return !!this.text.trim()
+  }
+
+  // 处理水印配置
+  handleConfig({ text, lineSpacing, textSpacing, angle, textStyle }) {
+    this.text = text === undefined ? '' : String(text).trim()
+    this.lineSpacing =
+      typeof lineSpacing === 'number' && lineSpacing > 0 ? lineSpacing : 100
+    this.textSpacing =
+      typeof textSpacing === 'number' && textSpacing > 0 ? textSpacing : 100
+    this.angle =
+      typeof angle === 'number' && angle >= 0 && angle <= 90 ? angle : 30
+    this.textStyle = Object.assign(this.textStyle, textStyle || {})
+  }
+
+  // 绘制水印
+  // 非精确绘制，会绘制一些超出可视区域的水印
+  draw() {
+    this.watermarkDraw.clear()
+    if (!this.hasWatermark()) {
+      return
+    }
+    let x = 0
+    while (x < this.mindMap.width) {
+      this.drawText(x)
+      x += this.lineSpacing / Math.sin(degToRad(this.angle))
+    }
+
+    let yOffset =
+      this.lineSpacing / Math.cos(degToRad(this.angle)) || this.lineSpacing
+    let y = yOffset
+    while (y < this.mindMap.height) {
+      this.drawText(0, y)
+      y += yOffset
+    }
+  }
+
+  // 绘制文字
+  drawText(x, y) {
+    let long = Math.min(
+      this.maxLong,
+      (this.mindMap.width - x) / Math.cos(degToRad(this.angle))
+    )
+    let g = new G()
+    let bbox = null
+    let bboxWidth = 0
+    let textHeight = -1
+    while (bboxWidth < long) {
+      let text = new Text().text(this.text)
+      g.add(text)
+      text.transform({
+        translateX: bboxWidth
+      })
+      this.setTextStyle(text)
+      bbox = g.bbox()
+      if (textHeight === -1) {
+        textHeight = bbox.height
+      }
+      bboxWidth = bbox.width + this.textSpacing
+    }
+    let params = {
+      rotate: this.angle,
+      origin: 'top left',
+      translateX: x,
+      translateY: textHeight
+    }
+    if (y !== undefined) {
+      params.translateY = y + textHeight
+    }
+    g.transform(params)
+    this.watermarkDraw.add(g)
+  }
+
+  // 给文字设置样式
+  setTextStyle(text) {
+    Object.keys(this.textStyle).forEach(item => {
+      let value = this.textStyle[item]
+      if (item === 'color') {
+        text.fill(value)
+      } else {
+        text.css(camelCaseToHyphen(item), value)
+      }
+    })
+  }
+
+  // 更新水印
+  updateWatermark(config) {
+    this.mindMap.opt.watermarkConfig = merge(this.mindMap.opt.watermarkConfig, config)
+    this.handleConfig(config)
+    this.draw()
+  }
+}
+
+Watermark.instanceName = 'watermark'
+
+export default Watermark

simple-mind-map/src/plugins/associativeLine/associativeLineControls.js

@@ -0,0 +1,241 @@
+import {
+  getAssociativeLineTargetIndex,
+  joinCubicBezierPath,
+  computeNodePoints,
+  getDefaultControlPointOffsets
+} from './associativeLineUtils'
+
+// 创建控制点、连线节点
+function createControlNodes() {
+  let { associativeLineActiveColor } = this.mindMap.themeConfig
+  // 连线
+  this.controlLine1 = this.draw
+    .line()
+    .stroke({ color: associativeLineActiveColor, width: 2 })
+  this.controlLine2 = this.draw
+    .line()
+    .stroke({ color: associativeLineActiveColor, width: 2 })
+  // 控制点
+  this.controlPoint1 = this.createOneControlNode('controlPoint1')
+  this.controlPoint2 = this.createOneControlNode('controlPoint2')
+}
+
+// 创建控制点
+function createOneControlNode(pointKey) {
+  let { associativeLineActiveColor } = this.mindMap.themeConfig
+  return this.draw
+    .circle(this.controlPointDiameter)
+    .stroke({ color: associativeLineActiveColor })
+    .fill({ color: '#fff' })
+    .click(e => {
+      e.stopPropagation()
+    })
+    .mousedown(e => {
+      this.onControlPointMousedown(e, pointKey)
+    })
+}
+
+// 控制点的鼠标按下事件
+function onControlPointMousedown(e, pointKey) {
+  e.stopPropagation()
+  this.isControlPointMousedown = true
+  this.mousedownControlPointKey = pointKey
+}
+
+// 控制点的鼠标移动事件
+function onControlPointMousemove(e) {
+  if (
+    !this.isControlPointMousedown ||
+    !this.mousedownControlPointKey ||
+    !this[this.mousedownControlPointKey]
+  )
+    return
+  e.stopPropagation()
+  e.preventDefault()
+  let radius = this.controlPointDiameter / 2
+  // 转换鼠标当前的位置
+  let { x, y } = this.getTransformedEventPos(e)
+  this.controlPointMousemoveState.pos = {
+    x,
+    y
+  }
+  // 更新当前拖拽的控制点的位置
+  this[this.mousedownControlPointKey].x(x - radius).y(y - radius)
+  let [path, clickPath, text, node, toNode] = this.activeLine
+  let [startPoint, endPoint] = computeNodePoints(node, toNode)
+  this.controlPointMousemoveState.startPoint = startPoint
+  this.controlPointMousemoveState.endPoint = endPoint
+  let targetIndex = getAssociativeLineTargetIndex(node, toNode)
+  this.controlPointMousemoveState.targetIndex = targetIndex
+  let offsets = []
+  let associativeLineTargetControlOffsets =
+    node.nodeData.data.associativeLineTargetControlOffsets
+  if (!associativeLineTargetControlOffsets) {
+    // 兼容0.4.5版本，没有associativeLineTargetControlOffsets的情况
+    offsets = getDefaultControlPointOffsets(startPoint, endPoint)
+  } else {
+    offsets = associativeLineTargetControlOffsets[targetIndex]
+  }
+  let point1 = null
+  let point2 = null
+  // 拖拽的是控制点1
+  if (this.mousedownControlPointKey === 'controlPoint1') {
+    point1 = {
+      x,
+      y
+    }
+    point2 = {
+      x: endPoint.x + offsets[1].x,
+      y: endPoint.y + offsets[1].y
+    }
+    // 更新控制点1的连线
+    this.controlLine1.plot(startPoint.x, startPoint.y, point1.x, point1.y)
+  } else {
+    // 拖拽的是控制点2
+    point1 = {
+      x: startPoint.x + offsets[0].x,
+      y: startPoint.y + offsets[0].y
+    }
+    point2 = {
+      x,
+      y
+    }
+    // 更新控制点2的连线
+    this.controlLine2.plot(endPoint.x, endPoint.y, point2.x, point2.y)
+  }
+  // 更新关联线
+  let pathStr = joinCubicBezierPath(startPoint, endPoint, point1, point2)
+  path.plot(pathStr)
+  clickPath.plot(pathStr)
+  this.updateTextPos(path, text)
+  this.updateTextEditBoxPos(text)
+}
+
+// 控制点的鼠标移动事件
+function onControlPointMouseup(e) {
+  if (!this.isControlPointMousedown) return
+  e.stopPropagation()
+  e.preventDefault()
+  let { pos, startPoint, endPoint, targetIndex } =
+    this.controlPointMousemoveState
+  let [, , , node] = this.activeLine
+  let offsetList = []
+  let associativeLineTargetControlOffsets =
+    node.nodeData.data.associativeLineTargetControlOffsets
+  if (!associativeLineTargetControlOffsets) {
+    // 兼容0.4.5版本，没有associativeLineTargetControlOffsets的情况
+    offsetList[targetIndex] = getDefaultControlPointOffsets(
+      startPoint,
+      endPoint
+    )
+  } else {
+    offsetList = associativeLineTargetControlOffsets
+  }
+  let offset1 = null
+  let offset2 = null
+  if (this.mousedownControlPointKey === 'controlPoint1') {
+    // 更新控制点1数据
+    offset1 = {
+      x: pos.x - startPoint.x,
+      y: pos.y - startPoint.y
+    }
+    offset2 = offsetList[targetIndex][1]
+  } else {
+    // 更新控制点2数据
+    offset1 = offsetList[targetIndex][0]
+    offset2 = {
+      x: pos.x - endPoint.x,
+      y: pos.y - endPoint.y
+    }
+  }
+  offsetList[targetIndex] = [offset1, offset2]
+  this.mindMap.execCommand('SET_NODE_DATA', node, {
+    associativeLineTargetControlOffsets: offsetList
+  })
+  // 这里要加个setTimeout0是因为draw_click事件比mouseup事件触发的晚，所以重置isControlPointMousedown需要等draw_click事件触发完以后
+  setTimeout(() => {
+    this.resetControlPoint()
+  }, 0)
+}
+
+// 复位控制点移动
+function resetControlPoint() {
+  this.isControlPointMousedown = false
+  this.mousedownControlPointKey = ''
+  this.controlPointMousemoveState = {
+    pos: null,
+    startPoint: null,
+    endPoint: null,
+    targetIndex: ''
+  }
+}
+
+// 渲染控制点
+function renderControls(startPoint, endPoint, point1, point2) {
+  if (!this.controlLine1) {
+    this.createControlNodes()
+  }
+  let radius = this.controlPointDiameter / 2
+  // 控制点和起终点的连线
+  this.controlLine1.plot(startPoint.x, startPoint.y, point1.x, point1.y)
+  this.controlLine2.plot(endPoint.x, endPoint.y, point2.x, point2.y)
+  // 控制点
+  this.controlPoint1.x(point1.x - radius).y(point1.y - radius)
+  this.controlPoint2.x(point2.x - radius).y(point2.y - radius)
+}
+
+// 删除控制点
+function removeControls() {
+  if (!this.controlLine1) return
+  ;[
+    this.controlLine1,
+    this.controlLine2,
+    this.controlPoint1,
+    this.controlPoint2
+  ].forEach(item => {
+    item.remove()
+  })
+  this.controlLine1 = null
+  this.controlLine2 = null
+  this.controlPoint1 = null
+  this.controlPoint2 = null
+}
+
+// 隐藏控制点
+function hideControls() {
+  if (!this.controlLine1) return
+  ;[
+    this.controlLine1,
+    this.controlLine2,
+    this.controlPoint1,
+    this.controlPoint2
+  ].forEach(item => {
+    item.hide()
+  })
+}
+
+// 显示控制点
+function showControls() {
+  if (!this.controlLine1) return
+  ;[
+    this.controlLine1,
+    this.controlLine2,
+    this.controlPoint1,
+    this.controlPoint2
+  ].forEach(item => {
+    item.show()
+  })
+}
+
+export default {
+  createControlNodes,
+  createOneControlNode,
+  onControlPointMousedown,
+  onControlPointMousemove,
+  onControlPointMouseup,
+  resetControlPoint,
+  renderControls,
+  removeControls,
+  hideControls,
+  showControls
+}

simple-mind-map/src/plugins/associativeLine/associativeLineText.js

@@ -0,0 +1,167 @@
+import { Text } from '@svgdotjs/svg.js'
+import { getStrWithBrFromHtml } from '../../utils/index'
+
+// 创建文字节点
+function createText(data) {
+  let g = this.draw.group()
+  const setActive = () => {
+    if (
+      !this.activeLine ||
+      this.activeLine[3] !== data.node ||
+      this.activeLine[4] !== data.toNode
+    ) {
+      this.setActiveLine({
+        ...data,
+        text: g
+      })
+    }
+  }
+  g.click(e => {
+    e.stopPropagation()
+    setActive()
+  })
+  g.on('dblclick', e => {
+    e.stopPropagation()
+    setActive()
+    if (!this.activeLine) return
+    this.showEditTextBox(g)
+  })
+  return g
+}
+
+//  显示文本编辑框
+function showEditTextBox(g) {
+  this.mindMap.emit('before_show_text_edit')
+  // 注册回车快捷键
+  this.mindMap.keyCommand.addShortcut('Enter', () => {
+    this.hideEditTextBox()
+  })
+  
+  if (!this.textEditNode) {
+    this.textEditNode = document.createElement('div')
+    this.textEditNode.style.cssText = `position:fixed;box-sizing: border-box;background-color:#fff;box-shadow: 0 0 20px rgba(0,0,0,.5);padding: 3px 5px;margin-left: -5px;margin-top: -3px;outline: none; word-break: break-all;`
+    this.textEditNode.setAttribute('contenteditable', true)
+    this.textEditNode.addEventListener('keyup', e => {
+      e.stopPropagation()
+    })
+    this.textEditNode.addEventListener('click', e => {
+      e.stopPropagation()
+    })
+    document.body.appendChild(this.textEditNode)
+  }
+  let {
+    associativeLineTextFontSize,
+    associativeLineTextFontFamily,
+    associativeLineTextLineHeight
+  } = this.mindMap.themeConfig
+  let scale = this.mindMap.view.scale
+  let [, , , node, toNode] = this.activeLine
+  let textLines = (
+    this.getText(node, toNode) || this.mindMap.opt.defaultAssociativeLineText
+  ).split(/\n/gim)
+  this.textEditNode.style.fontFamily = associativeLineTextFontFamily
+  this.textEditNode.style.fontSize = associativeLineTextFontSize * scale + 'px'
+  this.textEditNode.style.lineHeight = textLines.length > 1 ? associativeLineTextLineHeight : 'normal'
+  this.textEditNode.style.zIndex = this.mindMap.opt.nodeTextEditZIndex
+  this.textEditNode.innerHTML = textLines.join('<br>')
+  this.textEditNode.style.display = 'block'
+  this.updateTextEditBoxPos(g)
+  this.showTextEdit = true
+}
+
+// 处理画布缩放
+function onScale() {
+  this.hideEditTextBox()
+}
+
+// 更新文本编辑框位置
+function updateTextEditBoxPos(g) {
+  let rect = g.node.getBoundingClientRect()
+  this.textEditNode.style.minWidth = rect.width + 10 + 'px'
+  this.textEditNode.style.minHeight = rect.height + 6 + 'px'
+  this.textEditNode.style.left = rect.left + 'px'
+  this.textEditNode.style.top = rect.top + 'px'
+}
+
+//  隐藏文本编辑框
+function hideEditTextBox() {
+  if (!this.showTextEdit) {
+    return
+  }
+  let [path, , text, node, toNode] = this.activeLine
+  let str = getStrWithBrFromHtml(this.textEditNode.innerHTML)
+  this.mindMap.execCommand('SET_NODE_DATA', node, {
+    associativeLineText: {
+      ...(node.nodeData.data.associativeLineText || {}),
+      [toNode.nodeData.data.id]: str
+    }
+  })
+  this.textEditNode.style.display = 'none'
+  this.textEditNode.innerHTML = ''
+  this.showTextEdit = false
+  this.renderText(str, path, text)
+  this.mindMap.emit('hide_text_edit')
+}
+
+// 获取某根关联线的文字
+function getText(node, toNode) {
+  let obj = node.nodeData.data.associativeLineText
+  if (!obj) {
+    return ''
+  }
+  return obj[toNode.nodeData.data.id] || ''
+}
+
+// 渲染关联线文字
+function renderText(str, path, text) {
+  if (!str) return
+  let { associativeLineTextFontSize, associativeLineTextLineHeight } =
+    this.mindMap.themeConfig
+  text.clear()
+  let textArr = str.split(/\n/gim)
+  textArr.forEach((item, index) => {
+    let node = new Text().text(item)
+    node.y(associativeLineTextFontSize * associativeLineTextLineHeight * index)
+    this.styleText(node)
+    text.add(node)
+  })
+  updateTextPos(path, text)
+}
+
+// 给文本设置样式
+function styleText(node) {
+  let {
+    associativeLineTextColor,
+    associativeLineTextFontSize,
+    associativeLineTextFontFamily
+  } = this.mindMap.themeConfig
+  node
+    .fill({
+      color: associativeLineTextColor
+    })
+    .css({
+      'font-family': associativeLineTextFontFamily,
+      'font-size': associativeLineTextFontSize
+    })
+}
+
+// 更新关联线文字位置
+function updateTextPos(path, text) {
+  let pathLength = path.length()
+  let centerPoint = path.pointAt(pathLength / 2)
+  let { width: textWidth, height: textHeight } = text.bbox()
+  text.x(centerPoint.x - textWidth / 2)
+  text.y(centerPoint.y - textHeight / 2)
+}
+
+export default {
+  getText,
+  createText,
+  styleText,
+  onScale,
+  showEditTextBox,
+  hideEditTextBox,
+  updateTextEditBoxPos,
+  renderText,
+  updateTextPos
+}

simple-mind-map/src/plugins/associativeLine/associativeLineUtils.js

@@ -0,0 +1,182 @@
+// 获取目标节点在起始节点的目标数组中的索引
+export const getAssociativeLineTargetIndex = (node, toNode) => {
+  return node.nodeData.data.associativeLineTargets.findIndex(item => {
+    return item === toNode.nodeData.data.id
+  })
+}
+
+// 计算贝塞尔曲线的控制点
+export const computeCubicBezierPathPoints = (x1, y1, x2, y2) => {
+  let cx1 = x1 + (x2 - x1) / 2
+  let cy1 = y1
+  let cx2 = cx1
+  let cy2 = y2
+  if (Math.abs(x1 - x2) <= 5) {
+    cx1 = x1 + (y2 - y1) / 2
+    cx2 = cx1
+  }
+  return [
+    {
+      x: cx1,
+      y: cy1
+    },
+    {
+      x: cx2,
+      y: cy2
+    }
+  ]
+}
+
+// 拼接贝塞尔曲线路径
+export const joinCubicBezierPath = (startPoint, endPoint, point1, point2) => {
+  return `M ${startPoint.x},${startPoint.y} C ${point1.x},${point1.y} ${point2.x},${point2.y} ${endPoint.x},${endPoint.y}`
+}
+
+//  获取节点的位置信息
+const getNodeRect = node => {
+  let { left, top, width, height } = node
+  return {
+    right: left + width,
+    bottom: top + height,
+    left,
+    top
+  }
+}
+
+// 三次贝塞尔曲线
+export const cubicBezierPath = (x1, y1, x2, y2) => {
+  let points = computeCubicBezierPathPoints(x1, y1, x2, y2)
+  return joinCubicBezierPath(
+    { x: x1, y: y1 },
+    { x: x2, y: y2 },
+    points[0],
+    points[1]
+  )
+}
+
+// 获取节点的连接点
+export const getNodePoint = (node, dir = 'right') => {
+  let { left, top, width, height } = node
+  switch (dir) {
+    case 'left':
+      return {
+        x: left,
+        y: top + height / 2
+      }
+    case 'right':
+      return {
+        x: left + width,
+        y: top + height / 2
+      }
+    case 'top':
+      return {
+        x: left + width / 2,
+        y: top
+      }
+    case 'bottom':
+      return {
+        x: left + width / 2,
+        y: top + height
+      }
+    default:
+      break
+  }
+}
+
+// 根据两个节点的位置计算节点的连接点
+export const computeNodePoints = (fromNode, toNode) => {
+  let fromRect = getNodeRect(fromNode)
+  let fromCx = (fromRect.right + fromRect.left) / 2
+  let fromCy = (fromRect.bottom + fromRect.top) / 2
+  let toRect = getNodeRect(toNode)
+  let toCx = (toRect.right + toRect.left) / 2
+  let toCy = (toRect.bottom + toRect.top) / 2
+  // 中心点坐标的差值
+  let offsetX = toCx - fromCx
+  let offsetY = toCy - fromCy
+  if (offsetX === 0 && offsetY === 0) return
+  let fromDir = ''
+  let toDir = ''
+  if (offsetX <= 0 && offsetX <= offsetY && offsetX <= -offsetY) {
+    // left
+    fromDir = 'left'
+    toDir = 'right'
+  } else if (offsetX > 0 && offsetX >= -offsetY && offsetX >= offsetY) {
+    // right
+    fromDir = 'right'
+    toDir = 'left'
+  } else if (offsetY <= 0 && offsetY < offsetX && offsetY < -offsetX) {
+    // up
+    fromDir = 'top'
+    toDir = 'bottom'
+  } else if (offsetY > 0 && -offsetY < offsetX && offsetY > offsetX) {
+    // down
+    fromDir = 'bottom'
+    toDir = 'top'
+  }
+  return [getNodePoint(fromNode, fromDir), getNodePoint(toNode, toDir)]
+}
+
+// 获取节点的关联线路径
+export const getNodeLinePath = (startPoint, endPoint, node, toNode) => {
+  let targetIndex = getAssociativeLineTargetIndex(node, toNode)
+  // 控制点
+  let controlPoints = []
+  let associativeLineTargetControlOffsets =
+    node.nodeData.data.associativeLineTargetControlOffsets
+  if (
+    associativeLineTargetControlOffsets &&
+    associativeLineTargetControlOffsets[targetIndex]
+  ) {
+    // 节点保存了控制点差值
+    let offsets = associativeLineTargetControlOffsets[targetIndex]
+    controlPoints = [
+      {
+        x: startPoint.x + offsets[0].x,
+        y: startPoint.y + offsets[0].y
+      },
+      {
+        x: endPoint.x + offsets[1].x,
+        y: endPoint.y + offsets[1].y
+      }
+    ]
+  } else {
+    // 没有保存控制点则生成默认的
+    controlPoints = computeCubicBezierPathPoints(
+      startPoint.x,
+      startPoint.y,
+      endPoint.x,
+      endPoint.y
+    )
+  }
+  // 根据控制点拼接贝塞尔曲线路径
+  return {
+    path: joinCubicBezierPath(
+      startPoint,
+      endPoint,
+      controlPoints[0],
+      controlPoints[1]
+    ),
+    controlPoints
+  }
+}
+
+// 获取默认的控制点差值
+export const getDefaultControlPointOffsets = (startPoint, endPoint) => {
+  let controlPoints = computeCubicBezierPathPoints(
+    startPoint.x,
+    startPoint.y,
+    endPoint.x,
+    endPoint.y
+  )
+  return [
+    {
+      x: controlPoints[0].x - startPoint.x,
+      y: controlPoints[0].y - startPoint.y
+    },
+    {
+      x: controlPoints[1].x - endPoint.x,
+      y: controlPoints[1].y - endPoint.y
+    }
+  ]
+}

simple-mind-map/src/svg/btns.js

@@ -1,18 +1,14 @@
-/** 
- * @Author: 王林 
- * @Date: 2021-04-11 19:46:10 
- * @Desc: 展开按钮 
- */
+//  展开按钮
 const open = `<svg t="1618141562310" class="icon" viewBox="0 0 1024 1024" version="1.1" xmlns="http://www.w3.org/2000/svg" p-id="13476" width="200" height="200"><path d="M475.136 327.168v147.968h-147.968v74.24h147.968v147.968h74.24v-147.968h147.968v-74.24h-147.968v-147.968h-74.24z m36.864-222.208c225.28 0 407.04 181.76 407.04 407.04s-181.76 407.04-407.04 407.04-407.04-181.76-407.04-407.04 181.76-407.04 407.04-407.04z m0-74.24c-265.216 0-480.768 215.552-480.768 480.768s215.552 480.768 480.768 480.768 480.768-215.552 480.768-480.768-215.552-480.768-480.768-480.768z" p-id="13477"></path></svg>`
 
-/** 
- * @Author: 王林 
- * @Date: 2021-04-11 19:46:23 
- * @Desc: 收缩按钮 
- */
+//  收缩按钮
 const close = `<svg t="1618141589243" class="icon" viewBox="0 0 1024 1024" version="1.1" xmlns="http://www.w3.org/2000/svg" p-id="13611" width="200" height="200"><path d="M512 105.472c225.28 0 407.04 181.76 407.04 407.04s-181.76 407.04-407.04 407.04-407.04-181.76-407.04-407.04 181.76-407.04 407.04-407.04z m0-74.24c-265.216 0-480.768 215.552-480.768 480.768s215.552 480.768 480.768 480.768 480.768-215.552 480.768-480.768-215.552-480.768-480.768-480.768z" p-id="13612"></path><path d="M252.928 474.624h518.144v74.24h-518.144z" p-id="13613"></path></svg>`
 
+// 图片调整按钮
+const imgAdjust = `<svg width="12px" height="12px" viewBox="0 0 1024 1024" version="1.1" xmlns="http://www.w3.org/2000/svg"><path fill="#ffffff" d="M1008.128 614.4a25.6 25.6 0 0 0-27.648 5.632l-142.848 142.848L259.072 186.88 401.92 43.52A25.6 25.6 0 0 0 384 0h-358.4a25.6 25.6 0 0 0-25.6 25.6v358.4a25.6 25.6 0 0 0 43.52 17.92l143.36-142.848 578.048 578.048-142.848 142.848a25.6 25.6 0 0 0 17.92 43.52h358.4a25.6 25.6 0 0 0 25.6-25.6v-358.4a25.6 25.6 0 0 0-15.872-25.088z"  /></svg>`
+
 export default {
-    open,
-    close
-}
+  open,
+  close,
+  imgAdjust
+}

simple-mind-map/src/svg/icons.js

@@ -0,0 +1,297 @@
+// 超链接图标
+const hyperlink =
+  '<svg t="1624174958075" class="icon" viewBox="0 0 1024 1024" version="1.1" xmlns="http://www.w3.org/2000/svg" p-id="7982" ><path d="M435.484444 251.733333v68.892445L295.822222 320.682667a168.504889 168.504889 0 0 0-2.844444 336.952889h142.506666v68.892444H295.822222a237.397333 237.397333 0 0 1 0-474.794667h139.662222z m248.945778 0a237.397333 237.397333 0 0 1 0 474.851556H544.654222v-69.006222l139.776 0.056889a168.504889 168.504889 0 0 0 2.844445-336.952889H544.597333V251.676444h139.776z m-25.827555 203.946667a34.474667 34.474667 0 0 1 0 68.892444H321.649778a34.474667 34.474667 0 0 1 0-68.892444h336.952889z" p-id="7983"></path></svg>'
+
+// 备注图标
+const note =
+  '<svg t="1624195132675" class="icon" viewBox="0 0 1024 1024" version="1.1" xmlns="http://www.w3.org/2000/svg" p-id="8792" ><path d="M152.768 985.984 152.768 49.856l434.56 0 66.816 0 234.048 267.392 0 66.816 0 601.92L152.768 985.984 152.768 985.984zM654.144 193.088l0 124.16 108.736 0L654.144 193.088 654.144 193.088zM821.312 384.064l-167.168 0L587.328 384.064 587.328 317.312 587.328 116.736 219.584 116.736 219.584 919.04l601.728 0L821.312 384.064 821.312 384.064zM386.688 517.888 319.808 517.888 319.808 450.944l66.816 0L386.624 517.888 386.688 517.888zM386.688 651.584 319.808 651.584 319.808 584.704l66.816 0L386.624 651.584 386.688 651.584zM386.688 785.344 319.808 785.344l0-66.88 66.816 0L386.624 785.344 386.688 785.344zM721.024 517.888 453.632 517.888 453.632 450.944l267.392 0L721.024 517.888 721.024 517.888zM654.144 651.584 453.632 651.584 453.632 584.704l200.512 0L654.144 651.584 654.144 651.584zM620.672 785.344l-167.04 0 0-66.88 167.04 0L620.672 785.344 620.672 785.344z" p-id="8793"></path></svg>'
+
+// 节点icon
+export const nodeIconList = [
+  {
+    name: '优先级图标',
+    type: 'priority',
+    list: [
+      {
+        name: '1',
+        icon: `<svg viewBox="0 0 1024 1024"><path d="M512.042667 1024C229.248 1024 0 794.794667 0 511.957333 0 229.205333 229.248 0 512.042667 0 794.752 0 1024 229.205333 1024 511.957333 1024 794.794667 794.752 1024 512.042667 1024z" fill="#E93B30"></path><path d="M580.309333 256h-75.52c-10.666667 29.824-30.165333 55.765333-58.709333 78.165333-28.416 22.314667-54.869333 37.418667-79.146667 45.397334v84.608a320 320 0 0 0 120.234667-70.698667v352.085333H580.266667V256z" fill="#FFFFFF"></path></svg>`
+      },
+      {
+        name: '2',
+        icon: `<svg viewBox="0 0 1024 1024"><path d="M511.957333 1024C229.248 1024 0 794.752 0 512S229.248 0 511.957333 0C794.752 0 1024 229.248 1024 512s-229.248 512-512.042667 512z" fill="#FA8D2E"></path><path d="M667.946667 658.602667h-185.301334c4.864-8.533333 11.178667-17.066667 19.072-25.984 7.808-8.874667 26.453333-26.837333 55.936-53.888 29.525333-27.008 49.877333-47.786667 61.226667-62.165334 16.981333-21.717333 29.44-42.453333 37.290667-62.293333 7.808-19.84 11.776-40.746667 11.776-62.677333 0-38.570667-13.738667-70.741333-41.088-96.725334C599.466667 268.928 561.706667 256 513.834667 256c-43.690667 0-80.128 11.136-109.354667 33.578667-29.098667 22.4-46.506667 59.306667-52.010667 110.805333l93.184 9.301333c1.792-27.349333 8.405333-46.890667 19.754667-58.624 11.434667-11.776 26.837333-17.664 46.165333-17.664 19.541333 0 34.858667 5.589333 45.909334 16.768 11.136 11.264 16.682667 27.221333 16.682666 48.042667 0 18.858667-6.4 37.930667-19.242666 57.258667-9.472 14.037333-35.157333 40.533333-77.098667 79.872-52.096 48.554667-87.04 87.509333-104.704 116.821333A226.688 226.688 0 0 0 341.333333 745.429333h326.613334v-86.826666z" fill="#FFFFFF"></path></svg>`
+      },
+      {
+        name: '3',
+        icon: `<svg viewBox="0 0 1024 1024"><path d="M512 0C229.248 0 0 229.248 0 512s229.248 512 512 512 512-229.248 512-512S794.752 0 512 0z" fill="#2E66FA"></path><path d="M627.754667 731.733333c-29.354667 25.088-66.901333 37.632-112.725334 37.632-44.928 0-81.792-11.52-110.592-34.773333-33.066667-26.538667-49.877333-64.469333-50.304-114.133333h92.16c0.426667 21.76 7.552 38.314667 21.333334 49.664 12.288 10.88 28.117333 16.341333 47.402666 16.341333 20.309333 0 36.778667-6.101333 49.322667-18.432 12.544-12.330667 18.773333-29.568 18.773333-51.797333 0-21.290667-6.229333-38.186667-18.773333-50.773334-12.544-12.501333-29.866667-18.773333-52.138667-18.773333h-13.525333v-80.042667H512c42.112 0 63.274667-21.034667 63.274667-63.146666 0-20.309333-5.888-36.096-17.706667-47.445334a60.757333 60.757333 0 0 0-43.818667-17.066666c-17.493333 0-32 5.504-43.434666 16.298666-11.562667 10.88-17.792 25.728-18.773334 44.714667H359.68c0.981333-43.946667 16.042667-78.976 45.397333-104.96 29.354667-25.941333 65.706667-39.04 109.226667-39.04 44.928 0 81.792 13.525333 110.592 40.490667 28.8 26.922667 43.306667 61.610667 43.306667 104.149333 0 48.213333-19.413333 82.688-58.154667 103.552 43.52 23.125333 65.28 61.44 65.28 114.858667 0 48.128-15.957333 85.76-47.573333 112.682666z" fill="#FFFFFF"></path></svg>`
+      },
+      {
+        name: '4',
+        icon: `<svg viewBox="0 0 1024 1024"><path d="M512.042667 1024C229.248 1024 0 794.794667 0 512.042667 0 229.205333 229.248 0 512.042667 0 794.752 0 1024 229.205333 1024 512.042667 1024 794.794667 794.752 1024 512.042667 1024z" fill="#6D768D"></path><path d="M600.96 256v309.802667h60.117333v81.536h-60.16v98.218666h-90.154666v-98.218666H311.466667v-81.237334L522.666667 256h78.293333zM510.72 399.104l-112.042667 166.698667h112.042667V399.104z" fill="#FFFFFF"></path></svg>`
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+      {
+        name: '10',
+        icon: `<svg viewBox="0 0 1024 1024"><path d="M512 512m-512 0a512 512 0 1 0 1024 0 512 512 0 1 0-1024 0Z" fill="#6D768D"></path><path d="M533.333333 810.666667L298.666667 469.333333h128V256h213.333333v213.333333h128l-234.666667 341.333334z" fill="#FFFFFF"></path></svg>`
+      },
+      {
+        name: '11',
+        icon: `<svg viewBox="0 0 1024 1024"><path d="M512 512m-512 0a512 512 0 1 0 1024 0 512 512 0 1 0-1024 0Z" fill="#6D768D"></path><path d="M213.333333 533.333333L554.666667 298.666667v128h213.333333v213.333333h-213.333333v128l-341.333334-234.666667z" fill="#FFFFFF"></path></svg>`
+      },
+      {
+        name: '12',
+        icon: `<svg viewBox="0 0 1024 1024"><path d="M512 512m-512 0a512 512 0 1 0 1024 0 512 512 0 1 0-1024 0Z" fill="#6D768D"></path><path d="M810.666667 533.333333L469.333333 768v-128H256v-213.333333h213.333333V298.666667l341.333334 234.666666z" fill="#FFFFFF"></path></svg>`
+      },
+      {
+        name: '13',
+        icon: `<svg viewBox="0 0 1024 1024"><path d="M0 512c0 282.752 229.248 512 512 512s512-229.248 512-512S794.752 0 512 0 0 229.248 0 512z" fill="#6D768D"></path><path d="M571.349333 508.586667l162.389334-162.346667a44.330667 44.330667 0 1 0-62.72-62.72l-162.389334 162.389333-162.517333-162.389333a44.330667 44.330667 0 1 0-62.72 62.72l162.389333 162.389333-162.389333 162.474667a44.330667 44.330667 0 1 0 62.72 62.72l162.389333-162.346667 162.389334 162.389334a44.330667 44.330667 0 1 0 62.72-62.72l-162.261334-162.56z" fill="#FFFFFF"></path></svg>`
+      },
+      {
+        name: '14',
+        icon: `<svg viewBox="0 0 1024 1024"><path d="M512 0C233.386667 0 0 225.877333 0 512s225.877333 512 512 512 512-225.877333 512-512S790.613333 0 512 0z" fill="#6D768D"></path><path d="M726.144 311.210667l-277.333333 305.066666-124.8-124.8c-13.866667-13.866667-41.6-13.866667-55.466667 0-13.866667 13.866667-13.866667 41.6 0 55.466667l159.445333 152.533333c13.866667 13.866667 41.6 13.866667 55.466667 0l305.066667-332.8c13.866667-13.866667 13.866667-41.6 0-55.466666-20.778667-13.866667-48.512-13.866667-62.378667 0z" fill="#FFFFFF"></path></svg>`
+      },
+      {
+        name: '15',
+        icon: `<svg viewBox="0 0 1024 1024"><path d="M512 512m-512 0a512 512 0 1 0 1024 0 512 512 0 1 0-1024 0Z" fill="#6D768D"></path><path d="M541.952 755.626667a40.618667 40.618667 0 0 1-29.824 12.373333 41.344 41.344 0 0 1-30.122667-12.373333 40.106667 40.106667 0 0 1-12.672-30.122667c0-11.605333 4.096-21.845333 12.672-30.122667a40.405333 40.405333 0 0 1 30.122667-12.714666c11.605333 0 21.546667 4.138667 29.824 12.714666a40.32 40.32 0 0 1 12.714667 30.122667c0 11.861333-4.096 21.76-12.714667 30.122667zM450.986667 241.28A77.866667 77.866667 0 0 1 512.256 213.333333c24.874667 0 45.354667 8.917333 61.354667 27.946667 15.488 18.432 23.722667 41.685333 23.722666 69.674667 0 23.765333-33.152 200.533333-44.672 329.045333h-80.128C463.146667 511.402667 426.666667 334.677333 426.666667 310.954667c0-27.392 8.277333-50.645333 24.32-69.674667z" fill="#FFFFFF"></path></svg>`
+      },
+      {
+        name: '16',
+        icon: `<svg viewBox="0 0 1024 1024"><path d="M512 0C229.248 0 0 229.248 0 512s229.248 512 512 512 512-229.248 512-512S794.794667 0 512 0z" fill="#6D768D"></path><path d="M490.666667 682.666667a64 64 0 1 1 0 128 64 64 0 0 1 0-128z m13.994666-490.752c61.397333 0 112.341333 14.634667 153.002667 43.946666 40.533333 29.269333 60.885333 72.618667 60.885333 130.133334 0 35.242667-12.373333 64.938667-29.952 89.045333-10.282667 14.677333-33.664 33.408-62.890666 56.192l-32.426667 22.357333c-15.701333 12.202667-29.696 26.453333-34.858667 42.666667-1.706667 5.546667-3.072 14.677333-3.968 24.533333-0.426667 4.949333-4.864 15.018667-15.232 15.018667h-83.328c-13.568 0-15.957333-10.581333-15.744-15.786667 1.493333-34.005333 4.608-64.213333 18.474667-80.469333 28.074667-32.896 91.904-73.813333 91.904-73.813333a104.106667 104.106667 0 0 0 23.552-24.021334c10.837333-14.933333 19.797333-31.317333 19.797333-49.237333 0-20.565333-6.016-39.338667-18.090666-56.32-12.032-16.938667-34.090667-25.386667-66.005334-25.386667-31.445333 0-53.76 10.410667-66.901333 31.274667-9.685333 15.445333-15.786667 29.610667-18.346667 45.013333-0.853333 5.461333-4.394667 16.981333-16.042666 16.981334H327.210667c-17.322667 0-21.12-11.221333-20.650667-16.64 6.272-68.138667 32.896-114.688 80-144.597334 32-20.565333 71.381333-30.890667 118.101333-30.890666z" fill="#FFFFFF"></path></svg>`
+      },
+      {
+        name: '17',
+        icon: `<svg viewBox="0 0 1024 1024"><path d="M512 512m-512 0a512 512 0 1 0 1024 0 512 512 0 1 0-1024 0Z" fill="#6D768D"></path><path d="M336.256 410.026667H253.312a40.021333 40.021333 0 0 0-39.850667 43.264l23.296 278.101333c1.706667 20.693333 19.072 36.608 39.850667 36.608h59.648c11.050667 0 20.010667-8.96 20.010667-19.968v-318.037333a19.968 19.968 0 0 0-20.010667-19.968z m434.432 0h-178.944C653.312 182.314667 548.949333 170.666667 548.949333 170.666667c-44.288 0-35.114667 34.986667-38.442666 40.832 0 84.48-68.010667 155.093333-101.034667 184.362666a39.552 39.552 0 0 0-13.226667 29.653334v322.56c0 11.008 8.96 19.925333 20.010667 19.925333h233.728c30.378667 0 58.154667-17.152 71.68-44.373333 18.176-36.736 40.448-90.112 54.656-133.973334 13.781333-42.410667 26.24-94.976 33.578667-131.968a39.850667 39.850667 0 0 0-39.253334-47.658666z" fill="#FFFFFF"></path></svg>`
+      },
+      {
+        name: '18',
+        icon: `<svg viewBox="0 0 1024 1024"><path d="M512 512m-512 0a512 512 0 1 0 1024 0 512 512 0 1 0-1024 0Z" fill="#6D768D"></path><path d="M796.16 413.909333c-31.146667-0.298667-115.626667-0.085333-146.858667-0.085333h-158.464c8.533333-7.68 15.914667-14.506667 23.594667-20.906667 29.781333-24.874667 25.813333-71.082667-14.208-88.874666-22.954667-10.24-44.970667-5.632-64 11.52-34.944 31.274667-69.632 62.677333-104.277333 93.994666a15.488 15.488 0 0 1-11.178667 4.437334c-11.221333-0.085333-26.88-0.128-46.933333-0.170667a17.066667 17.066667 0 0 0-17.109334 17.066667L256 719.701333a17.066667 17.066667 0 0 0 17.066667 17.152l49.578666-0.085333c3.968 0 7.466667 0.768 10.88 2.602667 15.829333 8.832 31.701333 17.493333 47.616 26.24a18.133333 18.133333 0 0 0 9.301334 2.346666h168.405333c6.186667 0 11.946667-0.981333 17.834667-2.56 29.44-7.253333 40.021333-30.293333 38.528-52.565333-0.768-9.728-4.266667-18.346667-9.984-26.24 19.626667-5.76 35.114667-16.213333 42.112-36.096 7.125333-20.394667 1.621333-38.4-12.672-53.333333 28.16-19.754667 34.858667-44.672 18.645333-75.648h140.458667c6.570667 0 13.013333-0.597333 19.370666-2.645334 31.957333-9.813333 48.810667-42.88 35.626667-71.552-10.154667-22.186667-28.629333-33.152-52.608-33.450666z" fill="#FFFFFF"></path></svg>`
+      },
+      {
+        name: '19',
+        icon: `<svg viewBox="0 0 1024 1024"><path d="M512 512m-512 0a512 512 0 1 0 1024 0 512 512 0 1 0-1024 0Z" fill="#6D768D"></path><path d="M270.506667 413.909333c31.146667-0.298667 115.626667-0.085333 146.858666-0.085333h158.464c-8.533333-7.68-15.914667-14.506667-23.594666-20.906667-29.781333-24.874667-25.813333-71.082667 14.208-88.874666 22.954667-10.24 44.970667-5.632 64 11.52 34.944 31.274667 69.632 62.677333 104.277333 93.994666 3.413333 2.986667 6.528 4.437333 11.178667 4.437334 11.221333-0.085333 26.88-0.128 46.933333-0.170667a17.066667 17.066667 0 0 1 17.109333 17.066667l0.682667 288.853333a17.066667 17.066667 0 0 1-17.066667 17.152l-49.578666-0.085333a22.101333 22.101333 0 0 0-10.88 2.602666c-15.829333 8.832-31.701333 17.493333-47.616 26.24a18.133333 18.133333 0 0 1-9.301334 2.346667h-168.405333a68.693333 68.693333 0 0 1-17.834667-2.56c-29.44-7.253333-40.021333-30.293333-38.528-52.565333 0.768-9.728 4.266667-18.346667 9.984-26.24-19.626667-5.76-35.114667-16.213333-42.112-36.096-7.125333-20.394667-1.621333-38.4 12.672-53.333334-28.16-19.754667-34.858667-44.672-18.645333-75.648H272.853333c-6.570667 0-13.013333-0.597333-19.370666-2.645333-31.957333-9.813333-48.810667-42.88-35.626667-71.552 10.154667-22.186667 28.629333-33.152 52.608-33.450667z" fill="#FFFFFF"></path></svg>`
+      },
+      {
+        name: '20',
+        icon: `<svg viewBox="0 0 1024 1024"><path d="M512 512m-512 0a512 512 0 1 0 1024 0 512 512 0 1 0-1024 0Z" fill="#6D768D"></path><path d="M667.733333 480.128H400v-111.36a97.706667 97.706667 0 0 1 97.621333-97.621333 97.706667 97.706667 0 0 1 97.578667 97.621333 28.885333 28.885333 0 0 0 57.813333 0A155.605333 155.605333 0 0 0 497.621333 213.333333a155.605333 155.605333 0 0 0-155.392 155.434667v111.36h-14.677333A28.885333 28.885333 0 0 0 298.666667 509.013333v292.010667a28.885333 28.885333 0 0 0 28.885333 28.885333h340.138667a28.885333 28.885333 0 0 0 28.928-28.885333V509.013333a28.885333 28.885333 0 0 0-28.928-28.885333z" fill="#FFFFFF"></path></svg>`
+      },
+      {
+        name: '21',
+        icon: `<svg viewBox="0 0 1024 1024"><path d="M512 512m-512 0a512 512 0 1 0 1024 0 512 512 0 1 0-1024 0Z" fill="#6D768D"></path><path d="M400.042667 437.461333v-111.36a97.706667 97.706667 0 0 1 97.621333-97.621333 97.706667 97.706667 0 0 1 97.578667 97.621333 28.885333 28.885333 0 0 0 57.813333 0A155.605333 155.605333 0 0 0 497.621333 170.666667a155.605333 155.605333 0 0 0-155.392 155.434666v111.36h-14.677333A28.885333 28.885333 0 0 0 298.666667 466.346667v292.010666a28.885333 28.885333 0 0 0 28.885333 28.885334h340.138667a28.885333 28.885333 0 0 0 28.928-28.885334V466.346667a28.885333 28.885333 0 0 0-28.928-28.885334H400.042667z" fill="#FFFFFF"></path><path d="M595.242667 437.461333v-111.36a97.706667 97.706667 0 0 0-97.621334-97.621333 97.706667 97.706667 0 0 0-97.578666 97.621333 28.885333 28.885333 0 0 1-57.813334 0A155.605333 155.605333 0 0 1 497.621333 170.666667a155.605333 155.605333 0 0 1 155.434667 155.434666v111.36h14.634667c16 0 28.928 12.928 28.928 28.885334v292.010666a28.885333 28.885333 0 0 1-28.928 28.885334H327.552A28.885333 28.885333 0 0 1 298.666667 758.357333V466.346667c0-15.957333 12.928-28.885333 28.885333-28.885334h267.690667z" fill="#FFFFFF"></path></svg>`
+      },
+      {
+        name: '22',
+        icon: `<svg viewBox="0 0 1024 1024"><path d="M511.999787 512.000213m-511.999787 0a511.999787 511.999787 0 1 0 1023.999573 0 511.999787 511.999787 0 1 0-1023.999573 0Z" fill="#6D768D"></path><path d="M381.354508 364.586941c0 54.015977 29.013321 103.935957 75.946635 130.986613a152.53327 152.53327 0 0 0 151.935936 0 151.12527 151.12527 0 0 0 75.946636-130.986613A151.594604 151.594604 0 0 0 533.333111 213.333671a151.594604 151.594604 0 0 0-151.89327 151.25327zM660.479725 498.901552a185.258589 185.258589 0 0 1-127.146614 50.346646c-49.066646 0-93.866628-19.199992-127.06128-50.346646C317.141201 544.853533 255.999893 637.440161 255.999893 744.106783c0 13.183995 10.709329 23.850657 23.978657 23.850657h506.709122a23.893323 23.893323 0 0 0 23.978657-23.893323c0-106.538622-61.098641-199.25325-150.186604-245.205232z" fill="#FFFFFF"></path></svg>`
+      },
+      {
+        name: '23',
+        icon: `<svg viewBox="0 0 1024 1024"><path d="M512 512m-512 0a512 512 0 1 0 1024 0 512 512 0 1 0-1024 0Z" fill="#6D768D"></path><path d="M445.610667 401.578667a129.322667 129.322667 0 1 0 258.645333 0 129.322667 129.322667 0 0 0-258.645333 0z m237.568 114.901333a157.354667 157.354667 0 0 1-216.362667 0 236.373333 236.373333 0 0 0-127.957333 209.706667c0 11.264 9.130667 20.394667 20.394666 20.394666h431.402667a20.394667 20.394667 0 0 0 20.394667-20.394666 236.373333 236.373333 0 0 0-127.872-209.706667zM409.813333 401.578667c0-40.362667 14.592-77.397333 38.698667-106.112a112.725333 112.725333 0 0 0-29.013333-3.925334 112.64 112.64 0 0 0-112.426667 112.469334 112.64 112.64 0 0 0 144.853333 107.648 164.693333 164.693333 0 0 1-42.112-110.08z m-18.602666 136.704a136.533333 136.533333 0 0 1-65.706667-34.474667 205.44 205.44 0 0 0-111.232 182.4c0 9.813333 7.936 17.706667 17.706667 17.706667H303.36a273.621333 273.621333 0 0 1 87.893333-165.632z" fill="#FFFFFF"></path></svg>`
+      }
+    ]
+  }
+]
+
+//  获取nodeIconList icon内容
+const getNodeIconListIcon = (name, extendIconList = []) => {
+  let arr = name.split('_')
+  let typeData = [...nodeIconList, ...extendIconList].find(item => {
+    return item.type === arr[0]
+  })
+  return typeData.list.find(item => {
+    return item.name === arr[1]
+  }).icon
+}
+
+export default {
+  hyperlink,
+  note,
+  nodeIconList,
+  getNodeIconListIcon
+}

simple-mind-map/src/themes/autumn.js

@@ -0,0 +1,57 @@
+import defaultTheme from './default'
+import merge from 'deepmerge'
+
+// 秋天
+export default merge(defaultTheme, {
+  // 背景颜色
+  backgroundColor: '#fff2df',
+  // 连线的颜色
+  lineColor: '#b0bc47',
+  lineWidth: 3,
+  // 概要连线的粗细
+  generalizationLineWidth: 3,
+  // 概要连线的颜色
+  generalizationLineColor: '#b0bc47',
+  // 根节点样式
+  root: {
+    fillColor: '#e68112',
+    color: '#fff',
+    borderColor: '#e68112',
+    borderWidth: 0,
+    fontSize: 24,
+    active: {
+      borderColor: '#b0bc47',
+      borderWidth: 3
+    }
+  },
+  // 二级节点样式
+  second: {
+    fillColor: '#ffd683',
+    color: '#8c5416',
+    borderColor: '#b0bc47',
+    borderWidth: 2,
+    fontSize: 18,
+    active: {
+      borderColor: '#e68112'
+    }
+  },
+  // 三级及以下节点样式
+  node: {
+    fontSize: 14,
+    color: '#8c5416',
+    active: {
+      borderColor: '#b0bc47'
+    }
+  },
+  // 概要节点样式
+  generalization: {
+    fontSize: 14,
+    fillColor: '#ffd683',
+    borderColor: '#b0bc47',
+    borderWidth: 2,
+    color: '#8c5416',
+    active: {
+      borderColor: '#e68112'
+    }
+  }
+})

simple-mind-map/src/themes/avocado.js

@@ -0,0 +1,57 @@
+import defaultTheme from './default'
+import merge from 'deepmerge'
+
+// 牛油果
+export default merge(defaultTheme, {
+  // 背景颜色
+  backgroundColor: '#e6f1de',
+  // 连线的颜色
+  lineColor: '#f5ffad',
+  lineWidth: 4,
+  // 概要连线的粗细
+  generalizationLineWidth: 3,
+  // 概要连线的颜色
+  generalizationLineColor: '#749336',
+  // 根节点样式
+  root: {
+    fillColor: '#94c143',
+    color: '#fff',
+    borderColor: '#94c143',
+    borderWidth: 0,
+    fontSize: 24,
+    active: {
+      borderColor: '#749336',
+      borderWidth: 3
+    }
+  },
+  // 二级节点样式
+  second: {
+    fillColor: '#cee498',
+    color: '#749336',
+    borderColor: '#aec668',
+    borderWidth: 2,
+    fontSize: 18,
+    active: {
+      borderColor: '#749336'
+    }
+  },
+  // 三级及以下节点样式
+  node: {
+    fontSize: 14,
+    color: '#749336',
+    active: {
+      borderColor: '#749336'
+    }
+  },
+  // 概要节点样式
+  generalization: {
+    fontSize: 14,
+    fillColor: '#cee498',
+    borderColor: '#aec668',
+    borderWidth: 2,
+    color: '#749336',
+    active: {
+      borderColor: '#749336'
+    }
+  }
+})

simple-mind-map/src/themes/blackGold.js

@@ -0,0 +1,57 @@
+import defaultTheme from './default'
+import merge from 'deepmerge'
+
+// 黑金
+export default merge(defaultTheme, {
+  // 背景颜色
+  backgroundColor: 'rgb(18, 20, 20)',
+  // 连线的颜色
+  lineColor: 'rgb(205, 186, 156)',
+  lineWidth: 3,
+  // 概要连线的粗细
+  generalizationLineWidth: 3,
+  // 概要连线的颜色
+  generalizationLineColor: 'rgb(245, 224, 191)',
+  // 根节点样式
+  root: {
+    fillColor: 'rgb(255, 208, 124)',
+    color: 'rgb(111, 61, 6)',
+    borderColor: '',
+    borderWidth: 0,
+    fontSize: 24,
+    active: {
+      borderColor: '#fff',
+      borderWidth: 3
+    }
+  },
+  // 二级节点样式
+  second: {
+    fillColor: 'rgb(66, 57, 46)',
+    color: 'rgb(225, 201, 158)',
+    borderColor: 'rgb(245, 224, 191)',
+    borderWidth: 2,
+    fontSize: 18,
+    active: {
+      borderColor: 'rgb(255, 208, 124)'
+    }
+  },
+  // 三级及以下节点样式
+  node: {
+    fontSize: 14,
+    color: 'rgb(231, 203, 155)',
+    active: {
+      borderColor: 'rgb(255, 208, 124)'
+    }
+  },
+  // 概要节点样式
+  generalization: {
+    fontSize: 14,
+    fillColor: 'rgb(56, 45, 34)',
+    borderColor: 'rgb(104, 84, 61)',
+    borderWidth: 2,
+    color: 'rgb(242, 216, 176)',
+    active: {
+      borderColor: 'rgb(255, 208, 124)'
+    }
+  }
+})

simple-mind-map/src/themes/blackHumour.js

@@ -0,0 +1,58 @@
+import defaultTheme from './default'
+import merge from 'deepmerge'
+
+// 黑色幽默
+export default merge(defaultTheme, {
+  // 背景颜色
+  backgroundColor: 'rgb(27, 31, 34)',
+  // 连线的颜色
+  lineColor: 'rgb(75, 81, 78)',
+  lineWidth: 3,
+  // 概要连线的粗细
+  generalizationLineWidth: 3,
+  // 概要连线的颜色
+  generalizationLineColor: 'rgb(255, 119, 34)',
+  // 根节点样式
+  root: {
+    fillColor: 'rgb(36, 179, 96)',
+    color: '#fff',
+    borderColor: '',
+    borderWidth: 0,
+    fontSize: 24,
+    active: {
+      borderColor: 'rgb(254, 199, 13)',
+      borderWidth: 3
+    }
+  },
+  // 二级节点样式
+  second: {
+    fillColor: 'rgb(254, 199, 13)',
+    color: 'rgb(0, 0, 0)',
+    borderColor: '',
+    borderWidth: 0,
+    fontSize: 18,
+    active: {
+      borderColor: 'rgb(36, 179, 96)',
+      borderWidth: 3
+    }
+  },
+  // 三级及以下节点样式
+  node: {
+    fontSize: 14,
+    color: 'rgb(204, 204, 204)',
+    active: {
+      borderColor: 'rgb(254, 199, 13)'
+    }
+  },
+  // 概要节点样式
+  generalization: {
+    fontSize: 14,
+    fillColor: 'rgb(27, 31, 34)',
+    borderColor: 'rgb(255, 119, 34)',
+    borderWidth: 2,
+    color: 'rgb(204, 204, 204)',
+    active: {
+      borderColor: 'rgb(36, 179, 96)'
+    }
+  }
+})

simple-mind-map/src/themes/blueSky.js

@@ -0,0 +1,49 @@
+import defaultTheme from './default'
+import merge from 'deepmerge'
+
+//  天空蓝
+export default merge(defaultTheme, {
+  // 连线的颜色
+  lineColor: 'rgb(115, 161, 191)',
+  // 背景颜色
+  backgroundColor: 'rgb(251, 251, 251)',
+  // 概要连线的粗细
+  generalizationLineWidth: 1,
+  // 概要连线的颜色
+  generalizationLineColor: '#333',
+  // 根节点样式
+  root: {
+    fillColor: 'rgb(115, 161, 191)',
+    active: {
+      borderColor: 'rgb(57, 80, 96)'
+    }
+  },
+  // 二级节点样式
+  second: {
+    fillColor: 'rgb(238, 243, 246)',
+    color: '#333',
+    borderColor: 'rgb(115, 161, 191)',
+    borderWidth: 1,
+    fontSize: 14,
+    active: {
+      borderColor: 'rgb(57, 80, 96)'
+    }
+  },
+  // 三级及以下节点样式
+  node: {
+    fontSize: 12,
+    color: '#333',
+    active: {
+      borderColor: 'rgb(57, 80, 96)'
+    }
+  },
+  // 概要节点样式
+  generalization: {
+    fillColor: '#fff',
+    borderColor: '#333',
+    color: '#333',
+    active: {
+      borderColor: 'rgb(57, 80, 96)'
+    }
+  }
+})

simple-mind-map/src/themes/brainImpairedPink.js

@@ -0,0 +1,49 @@
+import defaultTheme from './default'
+import merge from 'deepmerge'
+
+//  脑残粉
+export default merge(defaultTheme, {
+  // 连线的颜色
+  lineColor: 'rgb(191, 115, 148)',
+  // 背景颜色
+  backgroundColor: 'rgb(251, 251, 251)',
+  // 概要连线的粗细
+  generalizationLineWidth: 1,
+  // 概要连线的颜色
+  generalizationLineColor: '#333',
+  // 根节点样式
+  root: {
+    fillColor: 'rgb(191, 115, 148)',
+    active: {
+      borderColor: 'rgb(96, 57, 74)'
+    }
+  },
+  // 二级节点样式
+  second: {
+    fillColor: 'rgb(246, 238, 242)',
+    color: '#333',
+    borderColor: 'rgb(191, 115, 148)',
+    borderWidth: 1,
+    fontSize: 14,
+    active: {
+      borderColor: 'rgb(96, 57, 74)'
+    }
+  },
+  // 三级及以下节点样式
+  node: {
+    fontSize: 12,
+    color: '#333',
+    active: {
+      borderColor: 'rgb(96, 57, 74)'
+    }
+  },
+  // 概要节点样式
+  generalization: {
+    fillColor: '#fff',
+    borderColor: '#333',
+    color: '#333',
+    active: {
+      borderColor: 'rgb(96, 57, 74)'
+    }
+  }
+})

simple-mind-map/src/themes/classic.js

@@ -0,0 +1,64 @@
+import defaultTheme from './default'
+import merge from 'deepmerge'
+
+//  脑图经典
+export default merge(defaultTheme, {
+  // 连线的颜色
+  lineColor: '#fff',
+  // 连线的粗细
+  lineWidth: 3,
+  // 概要连线的粗细
+  generalizationLineWidth: 3,
+  // 概要连线的颜色
+  generalizationLineColor: '#fff',
+  // 背景颜色
+  backgroundColor: 'rgb(58, 65, 68)',
+  // 背景图片
+  backgroundImage:
+    'data:image/png;base64,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',
+  // 背景重复
+  backgroundRepeat: 'repeat',
+  // 根节点样式
+  root: {
+    fillColor: 'rgb(233, 223, 152)',
+    color: '#333',
+    fontSize: 24,
+    borderRadius: 21,
+    active: {
+      fillColor: 'rgb(254, 219, 0)',
+      borderColor: 'transparent'
+    }
+  },
+  // 二级节点样式
+  second: {
+    fillColor: 'rgb(164, 197, 192)',
+    borderColor: 'transparent',
+    color: '#333',
+    fontSize: 16,
+    borderRadius: 10,
+    active: {
+      fillColor: 'rgb(254, 219, 0)',
+      borderColor: 'transparent'
+    }
+  },
+  // 三级及以下节点样式
+  node: {
+    fontSize: 12,
+    color: '#fff',
+    fontWeight: 'bold',
+    active: {
+      fillColor: 'rgb(254, 219, 0)',
+      borderColor: 'transparent'
+    }
+  },
+  // 概要节点样式
+  generalization: {
+    fillColor: '#fff',
+    borderColor: 'transparent',
+    color: '#333',
+    active: {
+      fillColor: 'rgb(254, 219, 0)',
+      borderColor: 'transparent'
+    }
+  }
+})

simple-mind-map/src/themes/classic2.js

@@ -0,0 +1,55 @@
+import defaultTheme from './default'
+import merge from 'deepmerge'
+
+//  经典2
+export default merge(defaultTheme, {
+  // 连线的颜色
+  lineColor: 'rgb(51, 51, 51)',
+  // 连线的粗细
+  lineWidth: 2,
+  // 概要连线的粗细
+  generalizationLineWidth: 3,
+  // 概要连线的颜色
+  generalizationLineColor: 'rgb(51, 51, 51)',
+  // 背景颜色
+  backgroundColor: '#fff',
+  // 根节点样式
+  root: {
+    fillColor: 'rgb(18, 187, 55)',
+    color: '#fff',
+    fontSize: 24,
+    borderRadius: 10,
+    active: {
+      borderColor: 'rgb(51, 51, 51)'
+    }
+  },
+  // 二级节点样式
+  second: {
+    fillColor: 'rgb(241, 242, 241)',
+    borderColor: 'transparent',
+    color: '#1a1a1a',
+    fontSize: 18,
+    borderRadius: 10,
+    active: {
+      borderColor: 'rgb(51, 51, 51)'
+    }
+  },
+  // 三级及以下节点样式
+  node: {
+    fontSize: 14,
+    color: '#1a1a1a',
+    active: {
+      borderColor: 'rgb(51, 51, 51)'
+    }
+  },
+  // 概要节点样式
+  generalization: {
+    fillColor: '#fff',
+    borderColor: 'rgb(51, 51, 51)',
+    borderWidth: 2,
+    color: '#1a1a1a',
+    active: {
+      borderColor: 'rgb(18, 187, 55)'
+    }
+  }
+})

simple-mind-map/src/themes/classic3.js

@@ -0,0 +1,58 @@
+import defaultTheme from './default'
+import merge from 'deepmerge'
+
+//  经典3
+export default merge(defaultTheme, {
+  // 连线的颜色
+  lineColor: 'rgb(94, 202, 110)',
+  // 连线的粗细
+  lineWidth: 2,
+  // 概要连线的粗细
+  generalizationLineWidth: 3,
+  // 概要连线的颜色
+  generalizationLineColor: '#1a1a1a',
+  // 背景颜色
+  backgroundColor: 'rgb(241, 241, 241)',
+  // 根节点样式
+  root: {
+    fillColor: 'rgb(255, 245, 214)',
+    color: '#1a1a1a',
+    fontSize: 24,
+    borderRadius: 10,
+    borderColor: 'rgb(249, 199, 84)',
+    borderWidth: 1,
+    active: {
+      borderColor: 'rgb(94, 202, 110)'
+    }
+  },
+  // 二级节点样式
+  second: {
+    fillColor: 'rgb(255, 245, 214)',
+    borderColor: 'rgb(249, 199, 84)',
+    borderWidth: 1,
+    color: '#1a1a1a',
+    fontSize: 18,
+    borderRadius: 10,
+    active: {
+      borderColor: 'rgb(94, 202, 110)'
+    }
+  },
+  // 三级及以下节点样式
+  node: {
+    fontSize: 14,
+    color: '#1a1a1a',
+    active: {
+      borderColor: 'rgb(94, 202, 110)'
+    }
+  },
+  // 概要节点样式
+  generalization: {
+    fillColor: '#fff',
+    borderColor: '#1a1a1a',
+    color: '#1a1a1a',
+    borderWidth: 2,
+    active: {
+      borderColor: 'rgb(94, 202, 110)'
+    }
+  }
+})

simple-mind-map/src/themes/classic4.js

@@ -0,0 +1,61 @@
+import defaultTheme from './default'
+import merge from 'deepmerge'
+
+//  经典4
+export default merge(defaultTheme, {
+  // 连线的颜色
+  lineColor: 'rgb(30, 53, 86)',
+  // 连线的粗细
+  lineWidth: 2,
+  // 概要连线的粗细
+  generalizationLineWidth: 2,
+  // 概要连线的颜色
+  generalizationLineColor: 'rgb(56, 123, 233)',
+  // 背景颜色
+  backgroundColor: 'rgb(241, 241, 241)',
+  // 根节点样式
+  root: {
+    fillColor: 'rgb(30, 53, 86)',
+    color: '#fff',
+    fontSize: 24,
+    borderRadius: 10,
+    borderColor: 'rgb(189, 197, 201)',
+    borderWidth: 2,
+    active: {
+      borderColor: 'rgb(169, 218, 218)'
+    }
+  },
+  // 二级节点样式
+  second: {
+    fillColor: 'rgb(169, 218, 218)',
+    borderColor: 'rgb(30, 53, 86)',
+    borderWidth: 2,
+    color: '#fff',
+    fontSize: 18,
+    borderRadius: 10,
+    active: {
+      borderColor: 'rgb(56, 123, 233)'
+    }
+  },
+  // 三级及以下节点样式
+  node: {
+    fontSize: 14,
+    color: 'rgb(30, 53, 86)',
+    borderColor: 'rgb(30, 53, 86)',
+    borderWidth: 1,
+    marginY: 20,
+    active: {
+      borderColor: 'rgb(169, 218, 218)'
+    }
+  },
+  // 概要节点样式
+  generalization: {
+    fillColor: 'rgb(56, 123, 233)',
+    borderColor: 'rgb(56, 123, 233)',
+    color: '#fff',
+    borderWidth: 0,
+    active: {
+      borderColor: 'rgb(169, 218, 218)'
+    }
+  }
+})

simple-mind-map/src/themes/classicBlue.js

@@ -0,0 +1,52 @@
+import defaultTheme from './default'
+import merge from 'deepmerge'
+
+//  经典蓝
+export default merge(defaultTheme, {
+  // 连线的颜色
+  lineColor: 'rgb(51, 51, 51)',
+  // 连线的粗细
+  lineWidth: 2,
+  // 概要连线的粗细
+  generalizationLineWidth: 2,
+  // 概要连线的颜色
+  generalizationLineColor: 'rgb(51, 51, 51)',
+  // 背景颜色
+  backgroundColor: 'rgb(239, 248, 250)',
+  // 根节点样式
+  root: {
+    fillColor: 'rgb(255, 255, 255)',
+    color: '#222',
+    active: {
+      borderColor: 'rgb(94, 199, 248)'
+    }
+  },
+  // 二级节点样式
+  second: {
+    fillColor: 'rgb(255, 255, 255)',
+    color: '#222',
+    borderColor: 'rgb(255, 255, 255)',
+    borderWidth: 1,
+    fontSize: 14,
+    active: {
+      borderColor: 'rgb(94, 199, 248)'
+    }
+  },
+  // 三级及以下节点样式
+  node: {
+    fontSize: 12,
+    color: '#333',
+    active: {
+      borderColor: 'rgb(94, 199, 248)'
+    }
+  },
+  // 概要节点样式
+  generalization: {
+    fillColor: '#fff',
+    borderColor: 'rgb(51, 51, 51)',
+    color: '#333',
+    active: {
+      borderColor: 'rgb(94, 199, 248)'
+    }
+  }
+})

simple-mind-map/src/themes/classicGreen.js

@@ -0,0 +1,51 @@
+import defaultTheme from './default'
+import merge from 'deepmerge'
+
+//  经典绿
+export default merge(defaultTheme, {
+  // 连线的颜色
+  lineColor: 'rgb(123, 199, 120)',
+  // 背景颜色
+  backgroundColor: 'rgb(236, 245, 231)',
+  // 概要连线的粗细
+  generalizationLineWidth: 2,
+  // 概要连线的颜色
+  generalizationLineColor: 'rgb(123, 199, 120)',
+  // 根节点样式
+  root: {
+    fillColor: 'rgb(253, 244, 217)',
+    color: '#222',
+    active: {
+      borderColor: 'rgb(94, 199, 248)'
+    }
+  },
+  // 二级节点样式
+  second: {
+    fillColor: 'rgb(253, 244, 217)',
+    color: '#222',
+    borderColor: 'rgb(242, 200, 104)',
+    borderWidth: 1,
+    fontSize: 14,
+    active: {
+      borderColor: 'rgb(94, 199, 248)'
+    }
+  },
+  // 三级及以下节点样式
+  node: {
+    fontSize: 12,
+    color: '#333',
+    active: {
+      borderColor: 'rgb(94, 199, 248)'
+    }
+  },
+  // 概要节点样式
+  generalization: {
+    fillColor: 'rgb(123, 199, 120)',
+    borderColor: 'transparent',
+    borderWidth: 2,
+    color: '#fff',
+    active: {
+      borderColor: 'rgb(94, 199, 248)'
+    }
+  }
+})

simple-mind-map/src/themes/coffee.js

@@ -0,0 +1,55 @@
+import defaultTheme from './default'
+import merge from 'deepmerge'
+
+// 咖啡
+export default merge(defaultTheme, {
+  // 连线的颜色
+  lineColor: 'rgb(173, 123, 91)',
+  lineWidth: 4,
+  // 概要连线的粗细
+  generalizationLineWidth: 4,
+  // 概要连线的颜色
+  generalizationLineColor: 'rgb(173, 123, 91)',
+  // 根节点样式
+  root: {
+    fillColor: 'rgb(202, 117, 79)',
+    color: '#fff',
+    borderColor: '',
+    borderWidth: 0,
+    fontSize: 24,
+    active: {
+      borderColor: 'rgb(173, 123, 91)',
+      borderWidth: 3
+    }
+  },
+  // 二级节点样式
+  second: {
+    fillColor: 'rgb(245, 231, 216)',
+    color: 'rgb(125, 86, 42)',
+    borderColor: '',
+    borderWidth: 0,
+    fontSize: 18,
+    active: {
+      borderColor: 'rgb(173, 123, 91)'
+    }
+  },
+  // 三级及以下节点样式
+  node: {
+    fontSize: 14,
+    color: 'rgb(96, 71, 47)',
+    active: {
+      borderColor: 'rgb(173, 123, 91)'
+    }
+  },
+  // 概要节点样式
+  generalization: {
+    fontSize: 14,
+    fillColor: 'rgb(255, 249, 239)',
+    borderColor: 'rgb(173, 123, 91)',
+    borderWidth: 2,
+    color: 'rgb(122, 83, 44)',
+    active: {
+      borderColor: 'rgb(202, 117, 79)'
+    }
+  }
+})

simple-mind-map/src/themes/courseGreen.js

@@ -0,0 +1,55 @@
+import defaultTheme from './default'
+import merge from 'deepmerge'
+
+// 课程绿
+export default merge(defaultTheme, {
+  // 连线的颜色
+  lineColor: 'rgb(113, 195, 169)',
+  lineWidth: 3,
+  // 概要连线的粗细
+  generalizationLineWidth: 3,
+  // 概要连线的颜色
+  generalizationLineColor: 'rgb(113, 195, 169)',
+  // 根节点样式
+  root: {
+    fillColor: 'rgb(16, 160, 121)',
+    color: '#fff',
+    borderColor: '',
+    borderWidth: 0,
+    fontSize: 24,
+    active: {
+      borderColor: 'rgb(173, 91, 12)',
+      borderWidth: 3
+    }
+  },
+  // 二级节点样式
+  second: {
+    fillColor: 'rgb(240, 252, 249)',
+    color: 'rgb(50, 113, 96)',
+    borderColor: 'rgb(113, 195, 169)',
+    borderWidth: 2,
+    fontSize: 18,
+    active: {
+      borderColor: 'rgb(173, 91, 12)'
+    }
+  },
+  // 三级及以下节点样式
+  node: {
+    fontSize: 14,
+    color: 'rgb(10, 59, 43)',
+    active: {
+      borderColor: 'rgb(173, 91, 12)'
+    }
+  },
+  // 概要节点样式
+  generalization: {
+    fontSize: 14,
+    fillColor: 'rgb(246, 238, 211)',
+    borderColor: '',
+    borderWidth: 0,
+    color: 'rgb(173, 91, 12)',
+    active: {
+      borderColor: 'rgb(113, 195, 169)'
+    }
+  }
+})

simple-mind-map/src/themes/dark.js

@@ -0,0 +1,54 @@
+import defaultTheme from './default'
+import merge from 'deepmerge'
+
+//  暗色
+export default merge(defaultTheme, {
+  // 连线的颜色
+  lineColor: 'rgb(17, 68, 23)',
+  // 连线的粗细
+  lineWidth: 2,
+  // 概要连线的粗细
+  generalizationLineWidth: 2,
+  // 概要连线的颜色
+  generalizationLineColor: '#fff',
+  // 背景颜色
+  backgroundColor: 'rgb(15, 16, 17)',
+  // 根节点样式
+  root: {
+    fillColor: 'rgb(28, 178, 43)',
+    color: '#fff',
+    fontSize: 24,
+    borderRadius: 10,
+    active: {
+      borderColor: 'rgb(17, 68, 23)'
+    }
+  },
+  // 二级节点样式
+  second: {
+    fillColor: 'rgb(55, 56, 58)',
+    color: 'rgb(147,148,149)',
+    fontSize: 18,
+    borderRadius: 10,
+    borderWidth: 0,
+    active: {
+      borderColor: 'rgb(17, 68, 23)'
+    }
+  },
+  // 三级及以下节点样式
+  node: {
+    fontSize: 14,
+    color: 'rgb(147, 148, 149)',
+    active: {
+      borderColor: 'rgb(17, 68, 23)'
+    }
+  },
+  // 概要节点样式
+  generalization: {
+    fillColor: '#fff',
+    borderColor: 'transparent',
+    color: '#333',
+    active: {
+      borderColor: 'rgb(17, 68, 23)'
+    }
+  }
+})

simple-mind-map/src/themes/dark2.js

@@ -0,0 +1,56 @@
+import defaultTheme from './default'
+import merge from 'deepmerge'
+
+//  暗色2
+export default merge(defaultTheme, {
+  // 连线的颜色
+  lineColor: 'rgb(75, 81, 78)',
+  lineWidth: 3,
+  // 概要连线的粗细
+  generalizationLineWidth: 3,
+  // 概要连线的颜色
+  generalizationLineColor: 'rgb(255, 119, 34)',
+  // 背景颜色
+  backgroundColor: 'rgb(27, 31, 34)',
+  // 根节点样式
+  root: {
+    fillColor: 'rgb(36, 179, 96)',
+    color: '#fff',
+    borderColor: '',
+    borderWidth: 0,
+    active: {
+      borderColor: 'rgb(254, 199, 13)',
+      borderWidth: 3
+    }
+  },
+  // 二级节点样式
+  second: {
+    fillColor: 'rgb(254, 199, 13)',
+    color: 'rgb(0, 0, 0)',
+    borderColor: '',
+    borderWidth: 0,
+    fontSize: 14,
+    active: {
+      borderColor: 'rgb(36, 179, 96)',
+      borderWidth: 2
+    }
+  },
+  // 三级及以下节点样式
+  node: {
+    fontSize: 12,
+    color: 'rgb(204, 204, 204)',
+    active: {
+      borderColor: 'rgb(254, 199, 13)'
+    }
+  },
+  // 概要节点样式
+  generalization: {
+    fillColor: 'transparent',
+    borderColor: 'rgb(255, 119, 34)',
+    borderWidth: 2,
+    color: 'rgb(204, 204, 204)',
+    active: {
+      borderColor: 'rgb(254, 199, 13)'
+    }
+  }
+})

simple-mind-map/src/themes/default.js

@@ -0,0 +1,193 @@
+//  默认主题
+
+export default {
+  // 节点内边距
+  paddingX: 15,
+  paddingY: 5,
+  // 图片显示的最大宽度
+  imgMaxWidth: 100,
+  // 图片显示的最大高度
+  imgMaxHeight: 100,
+  // icon的大小
+  iconSize: 20,
+  // 连线的粗细
+  lineWidth: 1,
+  // 连线的颜色
+  lineColor: '#549688',
+  // 连线样式
+  lineDasharray: 'none',
+  // 连线风格
+  lineStyle: 'straight', // 针对logicalStructure、mindMap两种结构。曲线（curve）、直线（straight）、直连（direct）
+  // 概要连线的粗细
+  generalizationLineWidth: 1,
+  // 概要连线的颜色
+  generalizationLineColor: '#549688',
+  // 概要曲线距节点的距离
+  generalizationLineMargin: 0,
+  // 概要节点距节点的距离
+  generalizationNodeMargin: 20,
+  // 关联线默认状态的粗细
+  associativeLineWidth: 2,
+  // 关联线默认状态的颜色
+  associativeLineColor: 'rgb(51, 51, 51)',
+  // 关联线激活状态的粗细
+  associativeLineActiveWidth: 8,
+  // 关联线激活状态的颜色
+  associativeLineActiveColor: 'rgba(2, 167, 240, 1)',
+  // 关联线文字颜色
+  associativeLineTextColor: 'rgb(51, 51, 51)',
+  // 关联线文字大小
+  associativeLineTextFontSize: 14,
+  // 关联线文字行高
+  associativeLineTextLineHeight: 1.2,
+  // 关联线文字字体
+  associativeLineTextFontFamily: '微软雅黑, Microsoft YaHei',
+  // 背景颜色
+  backgroundColor: '#fafafa',
+  // 背景图片
+  backgroundImage: 'none',
+  // 背景重复
+  backgroundRepeat: 'no-repeat',
+  // 设置背景图像的起始位置
+  backgroundPosition: 'center center',
+  // 设置背景图片大小
+  backgroundSize: 'cover',
+  // 节点使用横线样式
+  nodeUseLineStyle: false,
+  // 根节点样式
+  root: {
+    shape: 'rectangle',
+    fillColor: '#549688',
+    fontFamily: '微软雅黑, Microsoft YaHei',
+    color: '#fff',
+    fontSize: 16,
+    fontWeight: 'bold',
+    fontStyle: 'normal',
+    lineHeight: 1.5,
+    borderColor: 'transparent',
+    borderWidth: 0,
+    borderDasharray: 'none',
+    borderRadius: 5,
+    textDecoration: 'none',
+    active: {
+      borderColor: 'rgb(57, 80, 96)',
+      borderWidth: 3,
+      borderDasharray: 'none'
+    }
+  },
+  // 二级节点样式
+  second: {
+    shape: 'rectangle',
+    marginX: 100,
+    marginY: 40,
+    fillColor: '#fff',
+    fontFamily: '微软雅黑, Microsoft YaHei',
+    color: '#565656',
+    fontSize: 16,
+    fontWeight: 'noraml',
+    fontStyle: 'normal',
+    lineHeight: 1.5,
+    borderColor: '#549688',
+    borderWidth: 1,
+    borderDasharray: 'none',
+    borderRadius: 5,
+    textDecoration: 'none',
+    active: {
+      borderColor: 'rgb(57, 80, 96)',
+      borderWidth: 3,
+      borderDasharray: 'none'
+    }
+  },
+  // 三级及以下节点样式
+  node: {
+    shape: 'rectangle',
+    marginX: 50,
+    marginY: 0,
+    fillColor: 'transparent',
+    fontFamily: '微软雅黑, Microsoft YaHei',
+    color: '#6a6d6c',
+    fontSize: 14,
+    fontWeight: 'noraml',
+    fontStyle: 'normal',
+    lineHeight: 1.5,
+    borderColor: 'transparent',
+    borderWidth: 0,
+    borderRadius: 5,
+    borderDasharray: 'none',
+    textDecoration: 'none',
+    active: {
+      borderColor: 'rgb(57, 80, 96)',
+      borderWidth: 3,
+      borderDasharray: 'none'
+    }
+  },
+  // 概要节点样式
+  generalization: {
+    shape: 'rectangle',
+    marginX: 100,
+    marginY: 40,
+    fillColor: '#fff',
+    fontFamily: '微软雅黑, Microsoft YaHei',
+    color: '#565656',
+    fontSize: 16,
+    fontWeight: 'noraml',
+    fontStyle: 'normal',
+    lineHeight: 1.5,
+    borderColor: '#549688',
+    borderWidth: 1,
+    borderDasharray: 'none',
+    borderRadius: 5,
+    textDecoration: 'none',
+    active: {
+      borderColor: 'rgb(57, 80, 96)',
+      borderWidth: 3,
+      borderDasharray: 'none'
+    }
+  }
+}
+
+// 支持激活样式的属性
+// 简单来说，会改变节点大小的都不支持在激活时设置，为了性能考虑，节点切换激活态时不会重新计算节点大小
+export const supportActiveStyle = [
+  'fillColor',
+  'borderColor',
+  'borderWidth',
+  'borderDasharray',
+  'borderRadius'
+]
+
+// 检测主题配置是否是节点大小无关的
+const nodeSizeIndependenceList = [
+  'lineWidth',
+  'lineColor',
+  'lineDasharray',
+  'lineStyle',
+  'generalizationLineWidth',
+  'generalizationLineColor',
+  'associativeLineWidth',
+  'associativeLineColor',
+  'associativeLineActiveWidth',
+  'associativeLineActiveColor',
+  'associativeLineTextColor',
+  'associativeLineTextFontSize',
+  'associativeLineTextLineHeight',
+  'associativeLineTextFontFamily',
+  'backgroundColor',
+  'backgroundImage',
+  'backgroundRepeat',
+  'backgroundPosition',
+  'backgroundSize'
+]
+export const checkIsNodeSizeIndependenceConfig = (config) => {
+  let keys = Object.keys(config)
+  for(let i = 0; i < keys.length; i++) {
+    if (!nodeSizeIndependenceList.find((item) => {
+      return item === keys[i]
+    })) {
+      return false
+    }
+  }
+  return true
+}
+
+export const lineStyleProps = ['lineColor', 'lineDasharray', 'lineWidth']

simple-mind-map/src/themes/earthYellow.js

@@ -0,0 +1,49 @@
+import defaultTheme from './default'
+import merge from 'deepmerge'
+
+//  泥土黄
+export default merge(defaultTheme, {
+  // 连线的颜色
+  lineColor: 'rgb(191, 147, 115)',
+  // 背景颜色
+  backgroundColor: 'rgb(251, 251, 251)',
+  // 概要连线的粗细
+  generalizationLineWidth: 1,
+  // 概要连线的颜色
+  generalizationLineColor: '#333',
+  // 根节点样式
+  root: {
+    fillColor: 'rgb(191, 147, 115)',
+    active: {
+      borderColor: 'rgb(96, 73, 57)'
+    }
+  },
+  // 二级节点样式
+  second: {
+    fillColor: 'rgb(246, 242, 238)',
+    color: '#333',
+    borderColor: 'rgb(191, 147, 115)',
+    borderWidth: 1,
+    fontSize: 14,
+    active: {
+      borderColor: 'rgb(96, 73, 57)'
+    }
+  },
+  // 三级及以下节点样式
+  node: {
+    fontSize: 12,
+    color: '#333',
+    active: {
+      borderColor: 'rgb(96, 73, 57)'
+    }
+  },
+  // 概要节点样式
+  generalization: {
+    fillColor: '#fff',
+    borderColor: '#333',
+    color: '#333',
+    active: {
+      borderColor: 'rgb(96, 73, 57)'
+    }
+  }
+})

simple-mind-map/src/themes/freshGreen.js

@@ -0,0 +1,36 @@
+import defaultTheme from './default'
+import merge from 'deepmerge'
+
+//  清新绿
+export default merge(defaultTheme, {
+  // 连线的颜色
+  lineColor: '#333',
+  // 背景颜色
+  backgroundColor: '#d1f6ec',
+  // 概要连线的粗细
+  generalizationLineWidth: 1,
+  // 概要连线的颜色
+  generalizationLineColor: '#333',
+  // 根节点样式
+  root: {
+    fillColor: '#1fb27d'
+  },
+  // 二级节点样式
+  second: {
+    fillColor: '#fff',
+    color: '#565656',
+    borderColor: 'transparent',
+    borderWidth: 0
+  },
+  // 概要节点样式
+  generalization: {
+    fillColor: '#fff',
+    borderColor: '#333',
+    color: '#333',
+    active: {
+      borderColor: 'rgb(57, 80, 96)',
+      borderWidth: 3,
+      borderDasharray: 'none'
+    }
+  }
+})

simple-mind-map/src/themes/freshRed.js

@@ -0,0 +1,49 @@
+import defaultTheme from './default'
+import merge from 'deepmerge'
+
+//  清新红
+export default merge(defaultTheme, {
+  // 连线的颜色
+  lineColor: 'rgb(191, 115, 115)',
+  // 背景颜色
+  backgroundColor: 'rgb(251, 251, 251)',
+  // 概要连线的粗细
+  generalizationLineWidth: 1,
+  // 概要连线的颜色
+  generalizationLineColor: '#333',
+  // 根节点样式
+  root: {
+    fillColor: 'rgb(191, 115, 115)',
+    active: {
+      borderColor: 'rgb(96, 57, 57)'
+    }
+  },
+  // 二级节点样式
+  second: {
+    fillColor: 'rgb(246, 238, 238)',
+    color: '#333',
+    borderColor: 'rgb(191, 115, 115)',
+    borderWidth: 1,
+    fontSize: 14,
+    active: {
+      borderColor: 'rgb(96, 57, 57)'
+    }
+  },
+  // 三级及以下节点样式
+  node: {
+    fontSize: 12,
+    color: '#333',
+    active: {
+      borderColor: 'rgb(96, 57, 57)'
+    }
+  },
+  // 概要节点样式
+  generalization: {
+    fillColor: '#fff',
+    borderColor: '#333',
+    color: '#333',
+    active: {
+      borderColor: 'rgb(96, 57, 57)'
+    }
+  }
+})

simple-mind-map/src/themes/gold.js

@@ -0,0 +1,55 @@
+import defaultTheme from './default'
+import merge from 'deepmerge'
+
+//  金色vip
+export default merge(defaultTheme, {
+  // 连线的颜色
+  lineColor: 'rgb(51, 56, 62)',
+  lineWidth: 3,
+  // 概要连线的粗细
+  generalizationLineWidth: 3,
+  // 概要连线的颜色
+  generalizationLineColor: 'rgb(127, 93, 64)',
+  // 背景颜色
+  backgroundColor: '#fff',
+  // 根节点样式
+  root: {
+    fillColor: 'rgb(51, 56, 62)',
+    color: 'rgb(247, 208, 160)',
+    borderColor: '',
+    borderWidth: 0,
+    active: {
+      borderColor: 'rgb(247, 208, 160)',
+      borderWidth: 3
+    }
+  },
+  // 二级节点样式
+  second: {
+    fillColor: 'rgb(239, 209, 176)',
+    color: 'rgb(81, 58, 42)',
+    borderColor: '',
+    borderWidth: 0,
+    fontSize: 14,
+    active: {
+      borderColor: 'rgb(51, 56, 62)',
+      borderWidth: 2
+    }
+  },
+  // 三级及以下节点样式
+  node: {
+    fontSize: 12,
+    color: '#222',
+    active: {
+      borderColor: 'rgb(0, 192, 184)'
+    }
+  },
+  // 概要节点样式
+  generalization: {
+    fillColor: 'rgb(127, 93, 64)',
+    borderColor: 'transparent',
+    color: 'rgb(255, 214, 175)',
+    active: {
+      borderColor: 'rgb(51, 56, 62)'
+    }
+  }
+})

simple-mind-map/src/themes/greenLeaf.js

@@ -0,0 +1,56 @@
+import defaultTheme from './default'
+import merge from 'deepmerge'
+
+//  绿叶
+export default merge(defaultTheme, {
+  // 连线的颜色
+  lineColor: 'rgb(40, 193, 84)',
+  lineWidth: 3,
+  // 概要连线的粗细
+  generalizationLineWidth: 3,
+  // 概要连线的颜色
+  generalizationLineColor: 'rgb(251, 158, 0)',
+  // 背景颜色
+  backgroundColor: 'rgb(238, 255, 243)',
+  // 根节点样式
+  root: {
+    fillColor: 'rgb(25, 193, 73)',
+    color: '#fff',
+    borderColor: '',
+    borderWidth: 0,
+    active: {
+      borderColor: '#222',
+      borderWidth: 3
+    }
+  },
+  // 二级节点样式
+  second: {
+    fillColor: '#fff',
+    color: 'rgb(69, 149, 96)',
+    borderColor: '',
+    borderWidth: 0,
+    fontSize: 14,
+    active: {
+      borderColor: 'rgb(25, 193, 73)',
+      borderWidth: 2
+    }
+  },
+  // 三级及以下节点样式
+  node: {
+    fontSize: 12,
+    color: '#222',
+    active: {
+      borderColor: 'rgb(25, 193, 73)'
+    }
+  },
+  // 概要节点样式
+  generalization: {
+    fillColor: '#fff',
+    borderColor: 'rgb(251, 158, 0)',
+    borderWidth: 2,
+    color: 'rgb(51, 51, 51)',
+    active: {
+      borderColor: 'rgb(25, 193, 73)'
+    }
+  }
+})

simple-mind-map/src/themes/index.js

@@ -0,0 +1,67 @@
+import defaultTheme from './default'
+import freshGreen from './freshGreen'
+import blueSky from './blueSky'
+import brainImpairedPink from './brainImpairedPink'
+import romanticPurple from './romanticPurple'
+import freshRed from './freshRed'
+import earthYellow from './earthYellow'
+import classic from './classic'
+import classic2 from './classic2'
+import classic3 from './classic3'
+import classic4 from './classic4'
+import dark from './dark'
+import classicGreen from './classicGreen'
+import classicBlue from './classicBlue'
+import minions from './minions'
+import pinkGrape from './pinkGrape'
+import mint from './mint'
+import gold from './gold'
+import vitalityOrange from './vitalityOrange'
+import greenLeaf from './greenLeaf'
+import dark2 from './dark2'
+import skyGreen from './skyGreen'
+import simpleBlack from './simpleBlack'
+import courseGreen from './courseGreen'
+import coffee from './coffee'
+import redSpirit from './redSpirit'
+import blackHumour from './blackHumour'
+import lateNightOffice from './lateNightOffice'
+import blackGold from './blackGold'
+import avocado from './avocado'
+import autumn from './autumn'
+import orangeJuice from './orangeJuice'
+
+export default {
+  default: defaultTheme,
+  freshGreen,
+  blueSky,
+  brainImpairedPink,
+  romanticPurple,
+  freshRed,
+  earthYellow,
+  classic,
+  classic2,
+  classic3,
+  classic4,
+  dark,
+  classicGreen,
+  classicBlue,
+  minions,
+  pinkGrape,
+  mint,
+  gold,
+  vitalityOrange,
+  greenLeaf,
+  dark2,
+  skyGreen,
+  simpleBlack,
+  courseGreen,
+  coffee,
+  redSpirit,
+  blackHumour,
+  lateNightOffice,
+  blackGold,
+  avocado,
+  autumn,
+  orangeJuice
+}

simple-mind-map/src/themes/lateNightOffice.js

@@ -0,0 +1,58 @@
+import defaultTheme from './default'
+import merge from 'deepmerge'
+
+// 深夜办公室
+export default merge(defaultTheme, {
+  // 背景颜色
+  backgroundColor: 'rgb(32, 37, 49)',
+  // 连线的颜色
+  lineColor: 'rgb(137, 167, 196)',
+  lineWidth: 3,
+  // 概要连线的粗细
+  generalizationLineWidth: 3,
+  // 概要连线的颜色
+  generalizationLineColor: 'rgb(255, 119, 34)',
+  // 根节点样式
+  root: {
+    fillColor: 'rgb(23, 153, 243)',
+    color: 'rgb(255, 255, 255)',
+    borderColor: '',
+    borderWidth: 0,
+    fontSize: 24,
+    active: {
+      borderColor: 'rgb(255, 119, 34)',
+      borderWidth: 3
+    }
+  },
+  // 二级节点样式
+  second: {
+    fillColor: 'rgb(70, 78, 94)',
+    color: 'rgb(209, 210, 210)',
+    borderColor: '',
+    borderWidth: 0,
+    fontSize: 18,
+    active: {
+      borderColor: 'rgb(255, 119, 34)',
+      borderWidth: 3
+    }
+  },
+  // 三级及以下节点样式
+  node: {
+    fontSize: 14,
+    color: 'rgb(204, 204, 204)',
+    active: {
+      borderColor: 'rgb(255, 119, 34)'
+    }
+  },
+  // 概要节点样式
+  generalization: {
+    fontSize: 14,
+    fillColor: 'rgb(255, 119, 34)',
+    borderColor: '',
+    borderWidth: 2,
+    color: '#fff',
+    active: {
+      borderColor: 'rgb(23, 153, 243)'
+    }
+  }
+})

simple-mind-map/src/themes/minions.js

@@ -0,0 +1,52 @@
+import defaultTheme from './default'
+import merge from 'deepmerge'
+
+//  小黄人
+export default merge(defaultTheme, {
+  // 连线的颜色
+  lineColor: 'rgb(51, 51, 51)',
+  lineWidth: 3,
+  // 概要连线的粗细
+  generalizationLineWidth: 3,
+  // 概要连线的颜色
+  generalizationLineColor: '#222',
+  // 背景颜色
+  backgroundColor: 'rgb(248, 215, 49)',
+  // 根节点样式
+  root: {
+    fillColor: 'rgb(55, 165, 255)',
+    borderColor: 'rgb(51, 51, 51)',
+    borderWidth: 3,
+    active: {
+      borderColor: 'rgb(255, 160, 36)'
+    }
+  },
+  // 二级节点样式
+  second: {
+    fillColor: 'rgb(255, 160, 36)',
+    color: '#222',
+    borderColor: 'rgb(51, 51, 51)',
+    borderWidth: 3,
+    fontSize: 14,
+    active: {
+      borderColor: 'rgb(55, 165, 255)'
+    }
+  },
+  // 三级及以下节点样式
+  node: {
+    fontSize: 12,
+    color: '#222',
+    active: {
+      borderColor: 'rgb(55, 165, 255)'
+    }
+  },
+  // 概要节点样式
+  generalization: {
+    borderColor: '#222',
+    borderWidth: 3,
+    color: '#222',
+    active: {
+      borderColor: 'rgb(55, 165, 255)'
+    }
+  }
+})

simple-mind-map/src/themes/mint.js

@@ -0,0 +1,53 @@
+import defaultTheme from './default'
+import merge from 'deepmerge'
+
+//  薄荷
+export default merge(defaultTheme, {
+  // 连线的颜色
+  lineColor: 'rgb(104, 204, 202)',
+  lineWidth: 3,
+  // 概要连线的粗细
+  generalizationLineWidth: 3,
+  // 概要连线的颜色
+  generalizationLineColor: 'rgb(90, 206, 241)',
+  // 背景颜色
+  backgroundColor: 'rgb(239, 255, 255)',
+  // 根节点样式
+  root: {
+    fillColor: 'rgb(0, 192, 184)',
+    borderColor: '',
+    borderWidth: 0,
+    active: {
+      borderColor: 'rgb(255, 160, 36)',
+      borderWidth: 3
+    }
+  },
+  // 二级节点样式
+  second: {
+    fillColor: '#fff',
+    color: '#222',
+    borderColor: 'rgb(184, 235, 233)',
+    borderWidth: 2,
+    fontSize: 14,
+    active: {
+      borderColor: 'rgb(0, 192, 184)'
+    }
+  },
+  // 三级及以下节点样式
+  node: {
+    fontSize: 12,
+    color: '#222',
+    active: {
+      borderColor: 'rgb(0, 192, 184)'
+    }
+  },
+  // 概要节点样式
+  generalization: {
+    fillColor: 'rgb(90, 206, 241)',
+    borderColor: 'transparent',
+    color: '#fff',
+    active: {
+      borderColor: 'rgb(0, 192, 184)'
+    }
+  }
+})

simple-mind-map/src/themes/orangeJuice.js

@@ -0,0 +1,57 @@
+import defaultTheme from './default'
+import merge from 'deepmerge'
+
+// 橙汁
+export default merge(defaultTheme, {
+  // 背景颜色
+  backgroundColor: '#070616',
+  // 连线的颜色
+  lineColor: '#fff',
+  lineWidth: 3,
+  // 概要连线的粗细
+  generalizationLineWidth: 3,
+  // 概要连线的颜色
+  generalizationLineColor: '#fff',
+  // 根节点样式
+  root: {
+    fillColor: '#ff6811',
+    color: '#110501',
+    borderColor: '#ff6811',
+    borderWidth: 0,
+    fontSize: 24,
+    active: {
+      borderColor: '#a9a4a9',
+      borderWidth: 3
+    }
+  },
+  // 二级节点样式
+  second: {
+    fillColor: '#070616',
+    color: '#a9a4a9',
+    borderColor: '#ff6811',
+    borderWidth: 2,
+    fontSize: 18,
+    active: {
+      borderColor: '#110501'
+    }
+  },
+  // 三级及以下节点样式
+  node: {
+    fontSize: 14,
+    color: '#a9a4a9',
+    active: {
+      borderColor: '#ff6811'
+    }
+  },
+  // 概要节点样式
+  generalization: {
+    fontSize: 14,
+    fillColor: '',
+    borderColor: '#ff6811',
+    borderWidth: 2,
+    color: '#a9a4a9',
+    active: {
+      borderColor: '#110501'
+    }
+  }
+})

simple-mind-map/src/themes/pinkGrape.js

@@ -0,0 +1,55 @@
+import defaultTheme from './default'
+import merge from 'deepmerge'
+
+//  粉红葡萄
+export default merge(defaultTheme, {
+  // 连线的颜色
+  lineColor: 'rgb(166, 101, 106)',
+  lineWidth: 3,
+  // 概要连线的粗细
+  generalizationLineWidth: 3,
+  // 概要连线的颜色
+  generalizationLineColor: '#fff',
+  // 背景颜色
+  backgroundColor: 'rgb(255, 208, 211)',
+  // 根节点样式
+  root: {
+    fillColor: 'rgb(139, 109, 225)',
+    borderColor: '',
+    borderWidth: 0,
+    active: {
+      borderColor: 'rgb(243, 104, 138)',
+      borderWidth: 2
+    }
+  },
+  // 二级节点样式
+  second: {
+    fillColor: 'rgb(243, 104, 138)',
+    color: '#fff',
+    borderColor: '',
+    borderWidth: 0,
+    fontSize: 14,
+    active: {
+      borderColor: 'rgb(139, 109, 225)',
+      borderWidth: 2
+    }
+  },
+  // 三级及以下节点样式
+  node: {
+    fontSize: 12,
+    color: '#222',
+    active: {
+      borderColor: 'rgb(139, 109, 225)'
+    }
+  },
+  // 概要节点样式
+  generalization: {
+    fillColor: '#fff',
+    borderColor: 'transparent',
+    color: '#222',
+    active: {
+      borderColor: 'rgb(139, 109, 225)',
+      borderWidth: 2
+    }
+  }
+})

simple-mind-map/src/themes/redSpirit.js

@@ -0,0 +1,57 @@
+import defaultTheme from './default'
+import merge from 'deepmerge'
+
+// 红色精神
+export default merge(defaultTheme, {
+  // 背景颜色
+  backgroundColor: 'rgb(255, 238, 228)',
+  // 连线的颜色
+  lineColor: 'rgb(230, 138, 131)',
+  lineWidth: 3,
+  // 概要连线的粗细
+  generalizationLineWidth: 3,
+  // 概要连线的颜色
+  generalizationLineColor: 'rgb(222, 101, 85)',
+  // 根节点样式
+  root: {
+    fillColor: 'rgb(207, 44, 44)',
+    color: 'rgb(255, 233, 157)',
+    borderColor: '',
+    borderWidth: 0,
+    fontSize: 24,
+    active: {
+      borderColor: 'rgb(255, 233, 157)',
+      borderWidth: 3
+    }
+  },
+  // 二级节点样式
+  second: {
+    fillColor: 'rgb(255, 255, 255)',
+    color: 'rgb(211, 58, 21)',
+    borderColor: 'rgb(222, 101, 85)',
+    borderWidth: 2,
+    fontSize: 18,
+    active: {
+      borderColor: 'rgb(255, 233, 157)'
+    }
+  },
+  // 三级及以下节点样式
+  node: {
+    fontSize: 14,
+    color: 'rgb(144, 71, 43)',
+    active: {
+      borderColor: 'rgb(255, 233, 157)'
+    }
+  },
+  // 概要节点样式
+  generalization: {
+    fontSize: 14,
+    fillColor: 'rgb(255, 247, 211)',
+    borderColor: 'rgb(255, 202, 162)',
+    borderWidth: 2,
+    color: 'rgb(187, 101, 69)',
+    active: {
+      borderColor: 'rgb(222, 101, 85)'
+    }
+  }
+})

simple-mind-map/src/themes/romanticPurple.js

@@ -0,0 +1,49 @@
+import defaultTheme from './default'
+import merge from 'deepmerge'
+
+//  浪漫紫
+export default merge(defaultTheme, {
+  // 连线的颜色
+  lineColor: 'rgb(123, 115, 191)',
+  // 背景颜色
+  backgroundColor: 'rgb(251, 251, 251)',
+  // 概要连线的粗细
+  generalizationLineWidth: 1,
+  // 概要连线的颜色
+  generalizationLineColor: '#333',
+  // 根节点样式
+  root: {
+    fillColor: 'rgb(123, 115, 191)',
+    active: {
+      borderColor: 'rgb(61, 57, 96)'
+    }
+  },
+  // 二级节点样式
+  second: {
+    fillColor: 'rgb(239, 238, 246)',
+    color: '#333',
+    borderColor: 'rgb(123, 115, 191)',
+    borderWidth: 1,
+    fontSize: 14,
+    active: {
+      borderColor: 'rgb(61, 57, 96)'
+    }
+  },
+  // 三级及以下节点样式
+  node: {
+    fontSize: 12,
+    color: '#333',
+    active: {
+      borderColor: 'rgb(61, 57, 96)'
+    }
+  },
+  // 概要节点样式
+  generalization: {
+    fillColor: '#fff',
+    borderColor: '#333',
+    color: '#333',
+    active: {
+      borderColor: 'rgb(61, 57, 96)'
+    }
+  }
+})

simple-mind-map/src/themes/simpleBlack.js

@@ -0,0 +1,54 @@
+import defaultTheme from './default'
+import merge from 'deepmerge'
+
+// 简约黑
+export default merge(defaultTheme, {
+  // 连线的颜色
+  lineColor: 'rgb(34, 34, 34)',
+  lineWidth: 4,
+  // 概要连线的粗细
+  generalizationLineWidth: 4,
+  // 概要连线的颜色
+  generalizationLineColor: 'rgb(34, 34, 34)',
+  // 根节点样式
+  root: {
+    fillColor: '#fff',
+    color: 'rgb(34, 34, 34)',
+    borderColor: 'rgb(34, 34, 34)',
+    borderWidth: 3,
+    fontSize: 24,
+    active: {
+      borderColor: '#a13600'
+    }
+  },
+  // 二级节点样式
+  second: {
+    fillColor: 'rgb(241, 246, 248)',
+    color: 'rgb(34, 34, 34)',
+    borderColor: 'rgb(34, 34, 34)',
+    borderWidth: 3,
+    fontSize: 18,
+    active: {
+      borderColor: '#a13600'
+    }
+  },
+  // 三级及以下节点样式
+  node: {
+    fontSize: 14,
+    color: 'rgb(34, 34, 34)',
+    active: {
+      borderColor: '#a13600'
+    }
+  },
+  // 概要节点样式
+  generalization: {
+    fontSize: 14,
+    fillColor: 'transparent',
+    borderColor: 'rgb(34, 34, 34)',
+    borderWidth: 2,
+    color: 'rgb(34, 34, 34)',
+    active: {
+      borderColor: '#a13600'
+    }
+  }
+})

simple-mind-map/src/themes/skyGreen.js

@@ -0,0 +1,55 @@
+import defaultTheme from './default'
+import merge from 'deepmerge'
+
+//  天清绿
+export default merge(defaultTheme, {
+  // 连线的颜色
+  lineColor: '#fff',
+  lineWidth: 3,
+  // 概要连线的粗细
+  generalizationLineWidth: 3,
+  // 概要连线的颜色
+  generalizationLineColor: '#fff',
+  // 背景颜色
+  backgroundColor: 'rgb(80, 156, 170)',
+  // 根节点样式
+  root: {
+    fillColor: '#fff',
+    borderColor: '',
+    borderWidth: 0,
+    color: 'rgb(65, 89, 158)',
+    active: {
+      borderColor: 'rgb(251, 227, 188)',
+      borderWidth: 3
+    }
+  },
+  // 二级节点样式
+  second: {
+    fillColor: 'rgb(251, 227, 188)',
+    color: 'rgb(65, 89, 158)',
+    borderColor: '',
+    borderWidth: 0,
+    fontSize: 14,
+    active: {
+      borderColor: '#fff',
+      borderWidth: 2
+    }
+  },
+  // 三级及以下节点样式
+  node: {
+    fontSize: 12,
+    color: 'rgb(65, 89, 158)',
+    active: {
+      borderColor: 'rgb(251, 227, 188)'
+    }
+  },
+  // 概要节点样式
+  generalization: {
+    fillColor: '#fff',
+    borderColor: 'transparent',
+    color: 'rgb(65, 89, 158)',
+    active: {
+      borderColor: 'rgb(251, 227, 188)'
+    }
+  }
+})

simple-mind-map/src/themes/vitalityOrange.js

@@ -0,0 +1,55 @@
+import defaultTheme from './default'
+import merge from 'deepmerge'
+
+//  活力橙
+export default merge(defaultTheme, {
+  // 连线的颜色
+  lineColor: 'rgb(254, 146, 0)',
+  lineWidth: 3,
+  // 概要连线的粗细
+  generalizationLineWidth: 3,
+  // 概要连线的颜色
+  generalizationLineColor: 'rgb(255, 222, 69)',
+  // 背景颜色
+  backgroundColor: 'rgb(255, 246, 243)',
+  // 根节点样式
+  root: {
+    fillColor: 'rgb(255, 112, 52)',
+    color: '#fff',
+    borderColor: '',
+    borderWidth: 0,
+    active: {
+      borderColor: 'rgb(51, 51, 51)',
+      borderWidth: 3
+    }
+  },
+  // 二级节点样式
+  second: {
+    fillColor: '#fff',
+    color: 'rgb(51, 51, 51)',
+    borderColor: '',
+    borderWidth: 0,
+    fontSize: 14,
+    active: {
+      borderColor: 'rgb(255, 112, 52)',
+      borderWidth: 2
+    }
+  },
+  // 三级及以下节点样式
+  node: {
+    fontSize: 12,
+    color: '#222',
+    active: {
+      borderColor: 'rgb(255, 112, 52)'
+    }
+  },
+  // 概要节点样式
+  generalization: {
+    fillColor: 'rgb(255, 222, 69)',
+    borderColor: 'transparent',
+    color: 'rgb(51, 51, 51)',
+    active: {
+      borderColor: 'rgb(255, 112, 52)'
+    }
+  }
+})

simple-mind-map/src/utils/BatchExecution.js

@@ -0,0 +1,36 @@
+import { nextTick } from '.'
+
+//  批量执行
+class BatchExecution {
+  //  构造函数
+  constructor() {
+    this.has = {}
+    this.queue = []
+    this.nextTick = nextTick(this.flush, this)
+  }
+
+  //  添加任务
+  push(name, fn) {
+    if (this.has[name]) {
+      return
+    }
+    this.has[name] = true
+    this.queue.push({
+      name,
+      fn
+    })
+    this.nextTick()
+  }
+
+  //   执行队列
+  flush() {
+    let fns = this.queue.slice(0)
+    this.queue = []
+    fns.forEach(({ name, fn }) => {
+      this.has[name] = false
+      fn()
+    })
+  }
+}
+
+export default BatchExecution