mirror of
https://github.com/wanglin2/mind-map.git
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238 lines
7.9 KiB
JavaScript
238 lines
7.9 KiB
JavaScript
import { getStrWithBrFromHtml, checkNodeOuter, focusInput, selectAllInput } from '../../utils'
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import { ERROR_TYPES } from '../../constants/constant'
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// 节点文字编辑类
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export default class TextEdit {
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// 构造函数
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constructor(renderer) {
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this.renderer = renderer
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this.mindMap = renderer.mindMap
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// 当前编辑的节点
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this.currentNode = null
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// 文本编辑框
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this.textEditNode = null
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// 文本编辑框是否显示
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this.showTextEdit = false
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// 如果编辑过程中缩放画布了，那么缓存当前编辑的内容
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this.cacheEditingText = ''
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this.bindEvent()
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}
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// 事件
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bindEvent() {
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this.show = this.show.bind(this)
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this.onScale = this.onScale.bind(this)
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// 节点双击事件
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this.mindMap.on('node_dblclick', this.show)
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// 点击事件
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this.mindMap.on('draw_click', () => {
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// 隐藏文本编辑框
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this.hideEditTextBox()
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})
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this.mindMap.on('body_click', () => {
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// 隐藏文本编辑框
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if (this.mindMap.opt.isEndNodeTextEditOnClickOuter) {
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this.hideEditTextBox()
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}
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})
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this.mindMap.on('svg_mousedown', () => {
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// 隐藏文本编辑框
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this.hideEditTextBox()
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})
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// 展开收缩按钮点击事件
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this.mindMap.on('expand_btn_click', () => {
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this.hideEditTextBox()
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})
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// 节点激活前事件
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this.mindMap.on('before_node_active', () => {
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this.hideEditTextBox()
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})
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// 注册编辑快捷键
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this.mindMap.keyCommand.addShortcut('F2', () => {
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if (this.renderer.activeNodeList.length <= 0) {
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return
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}
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this.show(this.renderer.activeNodeList[0])
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})
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this.mindMap.on('scale', this.onScale)
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// // 监听按键事件，判断是否自动进入文本编辑模式
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if (this.mindMap.opt.enableAutoEnterTextEditWhenKeydown) {
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window.addEventListener('keydown', e => {
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const activeNodeList = this.mindMap.renderer.activeNodeList
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if (activeNodeList.length <= 0 || activeNodeList.length > 1) return
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const node = activeNodeList[0]
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// 当正在输入中文或英文或数字时，如果没有按下组合键，那么自动进入文本编辑模式
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if (node && this.checkIsAutoEnterTextEditKey(e)) {
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this.show(node, e, false, true)
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}
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})
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}
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}
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// 判断是否是自动进入文本编模式的按钮
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checkIsAutoEnterTextEditKey(e) {
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const keyCode = e.keyCode
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return (
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(keyCode === 229 ||
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(keyCode >= 65 && keyCode <= 90) ||
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(keyCode >= 48 && keyCode <= 57)) &&
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!this.mindMap.keyCommand.hasCombinationKey(e)
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)
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}
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// 注册临时快捷键
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registerTmpShortcut() {
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// 注册回车快捷键
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this.mindMap.keyCommand.addShortcut('Enter', () => {
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this.hideEditTextBox()
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})
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this.mindMap.keyCommand.addShortcut('Tab', () => {
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this.hideEditTextBox()
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})
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}
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// 显示文本编辑框
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// isInserting：是否是刚创建的节点
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// isFromKeyDown：是否是在按键事件进入的编辑
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async show(node, e, isInserting = false, isFromKeyDown = false) {
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// 使用了自定义节点内容那么不响应编辑事件
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if (node.isUseCustomNodeContent()) {
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return
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}
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let { beforeTextEdit } = this.mindMap.opt
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if (typeof beforeTextEdit === 'function') {
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let isShow = false
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try {
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isShow = await beforeTextEdit(node, isInserting)
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} catch (error) {
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isShow = false
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this.mindMap.opt.errorHandler(ERROR_TYPES.BEFORE_TEXT_EDIT_ERROR, error)
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}
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if (!isShow) return
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}
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this.currentNode = node
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let { offsetLeft, offsetTop } = checkNodeOuter(this.mindMap, node)
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this.mindMap.view.translateXY(offsetLeft, offsetTop)
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let rect = node._textData.node.node.getBoundingClientRect()
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if (this.mindMap.richText) {
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this.mindMap.richText.showEditText(node, rect, isInserting, isFromKeyDown)
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return
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}
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this.showEditTextBox(node, rect, isInserting, isFromKeyDown)
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}
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// 处理画布缩放
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onScale() {
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if (!this.currentNode) return
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if (this.mindMap.richText) {
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this.mindMap.richText.cacheEditingText =
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this.mindMap.richText.getEditText()
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this.mindMap.richText.showTextEdit = false
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} else {
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this.cacheEditingText = this.getEditText()
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this.showTextEdit = false
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}
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this.show(this.currentNode)
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}
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// 显示文本编辑框
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showEditTextBox(node, rect, isInserting, isFromKeyDown) {
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if (this.showTextEdit) return
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const { nodeTextEditZIndex, textAutoWrapWidth, selectTextOnEnterEditText } =
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this.mindMap.opt
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this.mindMap.emit('before_show_text_edit')
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this.registerTmpShortcut()
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if (!this.textEditNode) {
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this.textEditNode = document.createElement('div')
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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;`
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this.textEditNode.setAttribute('contenteditable', true)
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this.textEditNode.addEventListener('keyup', e => {
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e.stopPropagation()
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})
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this.textEditNode.addEventListener('click', e => {
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e.stopPropagation()
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})
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this.textEditNode.addEventListener('mousedown', e => {
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e.stopPropagation()
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})
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this.textEditNode.addEventListener('keydown', e => {
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if (this.checkIsAutoEnterTextEditKey(e)) {
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e.stopPropagation()
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}
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})
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const targetNode =
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this.mindMap.opt.customInnerElsAppendTo || document.body
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targetNode.appendChild(this.textEditNode)
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}
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let scale = this.mindMap.view.scale
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let lineHeight = node.style.merge('lineHeight')
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let fontSize = node.style.merge('fontSize')
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let textLines = (this.cacheEditingText || node.nodeData.data.text).split(
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/\n/gim
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)
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let isMultiLine = node._textData.node.attr('data-ismultiLine') === 'true'
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node.style.domText(this.textEditNode, scale, isMultiLine)
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this.textEditNode.style.zIndex = nodeTextEditZIndex
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this.textEditNode.innerHTML = textLines.join('<br>')
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this.textEditNode.style.minWidth = rect.width + 10 + 'px'
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this.textEditNode.style.minHeight = rect.height + 6 + 'px'
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this.textEditNode.style.left = rect.left + 'px'
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this.textEditNode.style.top = rect.top + 'px'
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this.textEditNode.style.display = 'block'
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this.textEditNode.style.maxWidth = textAutoWrapWidth * scale + 'px'
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if (isMultiLine && lineHeight !== 1) {
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this.textEditNode.style.transform = `translateY(${
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-((lineHeight * fontSize - fontSize) / 2) * scale
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}px)`
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}
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this.showTextEdit = true
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// 选中文本
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// if (!this.cacheEditingText) {
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// selectAllInput(this.textEditNode)
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// }
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if (isInserting || (selectTextOnEnterEditText && !isFromKeyDown)) {
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selectAllInput(this.textEditNode)
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} else {
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focusInput(this.textEditNode)
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}
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this.cacheEditingText = ''
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}
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// 获取当前正在编辑的内容
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getEditText() {
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return getStrWithBrFromHtml(this.textEditNode.innerHTML)
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}
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// 隐藏文本编辑框
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hideEditTextBox() {
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this.currentNode = null
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if (this.mindMap.richText) {
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return this.mindMap.richText.hideEditText()
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}
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if (!this.showTextEdit) {
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return
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}
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this.renderer.activeNodeList.forEach(node => {
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let str = this.getEditText()
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this.mindMap.execCommand('SET_NODE_TEXT', node, str)
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if (node.isGeneralization) {
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// 概要节点
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node.generalizationBelongNode.updateGeneralization()
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}
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this.mindMap.render()
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})
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this.mindMap.emit(
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'hide_text_edit',
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this.textEditNode,
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this.renderer.activeNodeList
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)
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this.textEditNode.style.display = 'none'
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this.textEditNode.innerHTML = ''
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this.textEditNode.style.fontFamily = 'inherit'
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this.textEditNode.style.fontSize = 'inherit'
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this.textEditNode.style.fontWeight = 'normal'
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this.textEditNode.style.transform = 'translateY(0)'
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this.showTextEdit = false
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}
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}
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