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

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import Quill from 'quill'
import Delta from 'quill-delta'
import 'quill/dist/quill.snow.css'
import {
walk,
getTextFromHtml,
isWhite,
getVisibleColorFromTheme,
isUndef,
checkSmmFormatData,
removeHtmlNodeByClass,
formatGetNodeGeneralization,
nodeRichTextToTextWithWrap
} from '../utils'
import { CONSTANTS } from '../constants/constant'
import MindMapNode from '../core/render/node/MindMapNode'
import { Scope } from 'parchment'
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.pasteUseRange = null
this.node = null
this.isInserting = false
this.styleEl = null
this.cacheEditingText = ''
this.lostStyle = false
this.isCompositing = false
this.textNodePaddingX = 6
this.textNodePaddingY = 4
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.onCompositionUpdate = this.onCompositionUpdate.bind(this)
this.onCompositionEnd = this.onCompositionEnd.bind(this)
window.addEventListener('compositionstart', this.onCompositionStart)
window.addEventListener('compositionupdate', this.onCompositionUpdate)
window.addEventListener('compositionend', this.onCompositionEnd)
}
// 解绑事件
unbindEvent() {
window.removeEventListener('compositionstart', this.onCompositionStart)
window.removeEventListener('compositionupdate', this.onCompositionUpdate)
window.removeEventListener('compositionend', this.onCompositionEnd)
}
// 插入样式
appendCss() {
this.mindMap.appendCss(
'richText',
`
.smm-richtext-node-wrap {
word-break: break-all;
}
.smm-richtext-node-wrap p {
font-family: auto;
}
`
)
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-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
this.extendFont([])
// 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)
}
// 扩展字体列表
extendFont(list = [], cover = false) {
fontFamilyList = cover ? [...list] : [...fontFamilyList, ...list]
// 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)
}
// 显示文本编辑控件
showEditText({ node, rect, isInserting, isFromKeyDown, isFromScale }) {
if (this.showTextEdit) {
return
}
let {
richTextEditFakeInPlace,
customInnerElsAppendTo,
nodeTextEditZIndex,
textAutoWrapWidth,
selectTextOnEnterEditText,
transformRichTextOnEnterEdit
} = this.mindMap.opt
textAutoWrapWidth = node.hasCustomWidth()
? node.customTextWidth
: textAutoWrapWidth
this.node = node
this.isInserting = isInserting
if (!rect) rect = node._textData.node.node.getBoundingClientRect()
if (!isFromScale) {
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
let paddingX = this.textNodePaddingX
let paddingY = this.textNodePaddingY
if (richTextEditFakeInPlace) {
let paddingValue = node.getPaddingVale()
paddingX = paddingValue.paddingX
paddingY = paddingValue.paddingY
}
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 ${paddingX}px;
`
this.textEditNode.addEventListener('click', e => {
e.stopPropagation()
})
this.textEditNode.addEventListener('mousedown', e => {
e.stopPropagation()
})
this.textEditNode.addEventListener('keydown', e => {
if (this.mindMap.renderer.textEdit.checkIsAutoEnterTextEditKey(e)) {
e.stopPropagation()
}
})
const targetNode = customInnerElsAppendTo || document.body
targetNode.appendChild(this.textEditNode)
}
this.textEditNode.style.marginLeft = `-${paddingX * scaleX}px`
this.textEditNode.style.marginTop = `-${paddingY * scaleY}px`
this.textEditNode.style.zIndex = nodeTextEditZIndex
this.textEditNode.style.background = this.getBackground(node)
this.textEditNode.style.minWidth = originWidth + paddingX * 2 + 'px'
this.textEditNode.style.minHeight = originHeight + 'px'
this.textEditNode.style.left = rect.left + 'px'
this.textEditNode.style.top = rect.top + 'px'
this.textEditNode.style.display = 'block'
this.textEditNode.style.maxWidth = textAutoWrapWidth + paddingX * 2 + 'px'
this.textEditNode.style.transform = `scale(${scaleX}, ${scaleY})`
this.textEditNode.style.transformOrigin = 'left top'
if (richTextEditFakeInPlace) {
this.textEditNode.style.borderRadius =
(node.style.merge('borderRadius') || 5) + 'px'
if (node.style.merge('shape') == 'roundedRectangle') {
this.textEditNode.style.borderRadius = (node.height || 50) + 'px'
}
}
// 节点文本内容
let nodeText = node.getData('text')
if (typeof transformRichTextOnEnterEdit === 'function') {
nodeText = transformRichTextOnEnterEdit(nodeText)
}
// 是否是空文本
const isEmptyText = isUndef(nodeText)
// 是否是非空的非富文本
const noneEmptyNoneRichText = !node.getData('richText') && !isEmptyText
// 如果是空文本,那么设置为丢失样式状态,否则输入不会带上样式
if (isEmptyText) {
this.lostStyle = true
}
if (noneEmptyNoneRichText) {
// 还不是富文本
let text = String(nodeText).split(/\n/gim).join('<br>')
let html = `<p>${text}</p>`
this.textEditNode.innerHTML = this.cacheEditingText || html
} else {
// 已经是富文本
this.textEditNode.innerHTML = this.cacheEditingText || nodeText
}
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除非selectTextOnEnterEditText配置为true
// 在selectTextOnEnterEditText时如果是在keydown事件进入的节点编辑也不需要全选
this.focus(
isInserting || (selectTextOnEnterEditText && !isFromKeyDown) ? 0 : null
)
if (noneEmptyNoneRichText) {
// 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 = ''
}
// 更新文本编辑框的大小和位置
updateTextEditNode() {
if (!this.node) return
const rect = this.node._textData.node.node.getBoundingClientRect()
const g = this.node._textData.node
const originWidth = g.attr('data-width')
const originHeight = g.attr('data-height')
this.textEditNode.style.minWidth =
originWidth + this.textNodePaddingX * 2 + 'px'
this.textEditNode.style.minHeight = originHeight + 'px'
this.textEditNode.style.left = rect.left + 'px'
this.textEditNode.style.top = rect.top + 'px'
}
// 删除文本编辑框元素
removeTextEditEl() {
if (!this.textEditNode) return
const targetNode = this.mindMap.opt.customInnerElsAppendTo || document.body
targetNode.removeChild(this.textEditNode)
}
// 获取编辑区域的背景填充
getBackground(node) {
const gradientStyle = node.style.merge('gradientStyle')
// 当前使用的是渐变色背景
if (gradientStyle) {
const startColor = node.style.merge('startColor')
const endColor = node.style.merge('endColor')
return `linear-gradient(to right, ${startColor}, ${endColor})`
} else {
// 单色背景
const bgColor = node.style.merge('fillColor')
const color = node.style.merge('color')
// 默认使用节点的填充色,否则如果节点颜色是白色的话编辑时看不见
return bgColor === 'transparent'
? isWhite(color)
? getVisibleColorFromTheme(this.mindMap.themeConfig)
: '#fff'
: bgColor
}
}
// 如果是非富文本的情况,需要手动应用文本样式
setTextStyleIfNotRichText(node) {
let style = {
font: node.style.merge('fontFamily'),
color: node.style.merge('color'),
italic: node.style.merge('fontStyle') === 'italic',
bold: node.style.merge('fontWeight') === 'bold',
size: node.style.merge('fontSize') + 'px',
underline: node.style.merge('textDecoration') === 'underline',
strike: node.style.merge('textDecoration') === 'line-through'
}
this.pureFormatAllText(style)
}
// 获取当前正在编辑的内容
getEditText() {
let html = this.quill.container.firstChild.innerHTML
// 去除ql-cursor节点
// https://github.com/wanglin2/mind-map/commit/138cc4b3e824671143f0bf70e5c46796f48520d0
// https://github.com/wanglin2/mind-map/commit/0760500cebe8ec4e8ad84ab63f877b8b2a193aa1
// html = removeHtmlNodeByClass(html, '.ql-cursor')
// 去除最后的空行
return html.replace(/<p><br><\/p>$/, '')
}
// 给html字符串中的节点样式按样式名首字母排序
sortHtmlNodeStyles(html) {
return html.replace(/(<[^<>]+\s+style=")([^"]+)("\s*>)/g, (_, a, b, c) => {
let arr = b.match(/[^:]+:[^:]+;/g) || []
arr = arr.map(item => {
return item.trim()
})
arr.sort()
return a + arr.join('') + c
})
}
// 隐藏文本编辑控件,即完成编辑
hideEditText(nodes) {
if (!this.showTextEdit) {
return
}
const { beforeHideRichTextEdit } = this.mindMap.opt
if (typeof beforeHideRichTextEdit === 'function') {
beforeHideRichTextEdit(this)
}
let html = this.getEditText()
html = this.sortHtmlNodeStyles(html)
const list = nodes && nodes.length > 0 ? nodes : [this.node]
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()
})
const node = this.node
this.textEditNode.style.display = 'none'
this.showTextEdit = false
this.mindMap.emit('rich_text_selection_change', false)
this.node = null
this.isInserting = false
this.mindMap.emit('hide_text_edit', this.textEditNode, list, node)
}
// 初始化Quill富文本编辑器
initQuillEditor() {
this.quill = new Quill(this.textEditNode, {
modules: {
toolbar: false,
keyboard: {
bindings: {
enter: {
key: 'Enter',
handler: function () {
// 覆盖默认的回车键,禁止换行
}
},
shiftEnter: {
key: 'Enter',
shiftKey: true,
handler: function (range, context) {
// 覆盖默认的换行,默认情况下新行的样式会丢失
const lineFormats = Object.keys(context.format).reduce(
(formats, format) => {
if (
this.quill.scroll.query(format, Scope.BLOCK) &&
!Array.isArray(context.format[format])
) {
formats[format] = context.format[format]
}
return formats
},
{}
)
const delta = new Delta()
.retain(range.index)
.delete(range.length)
.insert('\n', lineFormats)
this.quill.updateContents(delta, Quill.sources.USER)
this.quill.setSelection(range.index + 1, Quill.sources.SILENT)
this.quill.focus()
Object.keys(context.format).forEach(name => {
if (lineFormats[name] != null) return
if (Array.isArray(context.format[name])) return
if (name === 'code' || name === 'link') return
this.quill.format(
name,
context.format[name],
Quill.sources.USER
)
})
}
},
tab: {
key: 9,
handler: function () {
// 覆盖默认的tab键
}
}
}
}
},
theme: 'snow'
})
// 拦截复制事件即Ctrl + c去除多余的空行
this.quill.root.addEventListener('copy', event => {
event.preventDefault()
const sel = window.getSelection()
const originStr = sel.toString()
try {
const range = sel.getRangeAt(0)
const div = document.createElement('div')
div.appendChild(range.cloneContents())
const text = nodeRichTextToTextWithWrap(div.innerHTML)
event.clipboardData.setData('text/plain', text)
} catch (e) {
event.clipboardData.setData('text/plain', originStr)
}
})
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) {
this.pasteUseRange = 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
)
} else {
this.mindMap.emit('rich_text_selection_change', false, null, null)
}
})
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
}
this.mindMap.emit('node_text_edit_change', {
node: this.node,
text: this.getEditText(),
richText: true
})
})
// 拦截粘贴,只允许粘贴纯文本
// this.quill.clipboard.addMatcher(Node.TEXT_NODE, node => {
// let style = this.getPasteTextStyle()
// return new Delta().insert(this.formatPasteText(node.data), style)
// })
// 剪贴板里只要存在文本就会走这里,所以当剪贴板里是纯文本,或文本+图片都可以监听到和拦截,但是只有纯图片时不会走这里,所以无法拦截
this.quill.clipboard.addMatcher(Node.ELEMENT_NODE, (node, delta) => {
let ops = []
let style = this.getPasteTextStyle()
delta.ops.forEach(op => {
// 过滤出文本内容,过滤掉换行
if (op.insert && typeof op.insert === 'string') {
ops.push({
attributes: { ...style },
insert: this.formatPasteText(op.insert)
})
}
})
delta.ops = ops
return delta
})
// 拦截图片的粘贴,当剪贴板里是纯图片,或文本+图片都可以拦截到,但是带来的问题是文本+图片时里面的文本也无法粘贴
this.quill.root.addEventListener(
'paste',
e => {
if (
e.clipboardData &&
e.clipboardData.files &&
e.clipboardData.files.length
) {
e.preventDefault()
}
},
true
)
}
// 获取粘贴的文本的样式
getPasteTextStyle() {
// 粘贴的数据使用当前光标位置处的文本样式
if (this.pasteUseRange) {
return this.quill.getFormat(
this.pasteUseRange.index,
this.pasteUseRange.length
)
}
return {}
}
// 处理粘贴的文本内容
formatPasteText(text) {
const { isSmm, data } = checkSmmFormatData(text)
if (isSmm && data[0] && data[0].data) {
// 只取第一个节点的纯文本
return getTextFromHtml(data[0].data.text)
} else {
return text
}
}
// 正则输入中文
onCompositionStart() {
if (!this.showTextEdit) {
return
}
this.isCompositing = true
}
// 中文输入中
onCompositionUpdate() {
if (!this.showTextEdit || !this.node) return
this.mindMap.emit('node_text_edit_change', {
node: this.node,
text: this.getEditText(),
richText: true
})
}
// 中文输入结束
onCompositionEnd() {
if (!this.showTextEdit) {
return
}
this.isCompositing = false
if (!this.lostStyle) {
return
}
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, pure = false) {
if (!this.range && !this.lastRange) return
if (!pure) 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() {
// 先移除全部样式
this.formatText({}, true)
// 再将样式恢复为当前主题改节点的默认样式
const style = {}
if (this.node) {
;[
'fontFamily',
'fontSize',
'fontWeight',
'fontStyle',
'textDecoration',
'color'
].forEach(key => {
style[key] = this.node.style.merge(key)
})
}
const config = this.normalStyleToRichTextStyle(style)
this.formatText(config, false, 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.execCommand('SET_NODE_DATA', 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
}
// 给未激活的节点设置富文本样式
setNotActiveNodeStyle(node, style) {
const config = this.normalStyleToRichTextStyle(style)
if (Object.keys(config).length > 0) {
this.showEditText({ node })
this.formatAllText(config)
this.hideEditText([node])
}
}
// 检查指定节点是否存在自定义的富文本样式
checkNodeHasCustomRichTextStyle(node) {
const list = [
'fontFamily',
'fontSize',
'fontWeight',
'fontStyle',
'textDecoration',
'color'
]
const nodeData = node instanceof MindMapNode ? node.getData() : node
for (let i = 0; i < list.length; i++) {
if (nodeData[list[i]] !== undefined) {
return true
}
}
return false
}
// 将所有节点转换成非富文本节点
transformAllNodesToNormalNode() {
if (!this.mindMap.renderer.renderTree) return
walk(
this.mindMap.renderer.renderTree,
null,
node => {
if (node.data.richText) {
node.data.richText = false
node.data.text = getTextFromHtml(node.data.text)
}
// 概要
if (node.data) {
const generalizationList = formatGetNodeGeneralization(node.data)
generalizationList.forEach(item => {
item.richText = false
item.text = getTextFromHtml(item.text)
})
}
},
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 && !root.data.richText) {
root.data.richText = true
root.data.resetRichText = true
}
// 概要
if (root.data) {
const generalizationList = formatGetNodeGeneralization(root.data)
generalizationList.forEach(item => {
item.richText = true
item.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)
this.unbindEvent()
this.mindMap.removeAppendCss('richText')
}
// 插件被卸载前做的事情
beforePluginDestroy() {
document.head.removeChild(this.styleEl)
this.unbindEvent()
}
}
RichText.instanceName = 'richText'
export default RichText