mirror of
https://github.com/wanglin2/mind-map.git
synced 2026-02-22 02:47:46 +08:00
462 lines
14 KiB
JavaScript
462 lines
14 KiB
JavaScript
import Quill from 'quill'
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import 'quill/dist/quill.snow.css'
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import './css/quill.css'
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import html2canvas from 'html2canvas'
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import { Image as SvgImage } from '@svgdotjs/svg.js'
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import { walk } from './utils'
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import { CONSTANTS } from './utils/constant'
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let extended = false
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// 扩展quill的字体列表
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let fontFamilyList = [
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'宋体, SimSun, Songti SC',
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'微软雅黑, Microsoft YaHei',
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'楷体, 楷体_GB2312, SimKai, STKaiti',
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'黑体, SimHei, Heiti SC',
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'隶书, SimLi',
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'andale mono',
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'arial, helvetica, sans-serif',
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'arial black, avant garde',
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'comic sans ms',
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'impact, chicago',
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'times new roman',
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'sans-serif',
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'serif'
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]
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// 扩展quill的字号列表
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let fontSizeList = new Array(100).fill(0).map((_, index) => {
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return index + 'px'
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})
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// 节点支持富文本编辑功能
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class RichText {
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constructor({ mindMap, pluginOpt }) {
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this.mindMap = mindMap
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this.pluginOpt = pluginOpt
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this.textEditNode = null
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this.showTextEdit = false
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this.quill = null
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this.range = null
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this.lastRange = null
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this.node = null
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this.initOpt()
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this.extendQuill()
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}
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// 处理选项参数
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initOpt() {
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if (
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this.pluginOpt.fontFamilyList &&
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Array.isArray(this.pluginOpt.fontFamilyList)
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) {
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fontFamilyList = this.pluginOpt.fontFamilyList
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}
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if (
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this.pluginOpt.fontSizeList &&
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Array.isArray(this.pluginOpt.fontSizeList)
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) {
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fontSizeList = this.pluginOpt.fontSizeList
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}
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}
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// 扩展quill编辑器
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extendQuill() {
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if (extended) {
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return
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}
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extended = true
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// 扩展quill的字体列表
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const FontAttributor = Quill.import('attributors/class/font')
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FontAttributor.whitelist = fontFamilyList
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Quill.register(FontAttributor, true)
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const FontStyle = Quill.import('attributors/style/font')
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FontStyle.whitelist = fontFamilyList
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Quill.register(FontStyle, true)
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// 扩展quill的字号列表
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const SizeAttributor = Quill.import('attributors/class/size')
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SizeAttributor.whitelist = fontSizeList
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Quill.register(SizeAttributor, true)
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const SizeStyle = Quill.import('attributors/style/size')
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SizeStyle.whitelist = fontSizeList
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Quill.register(SizeStyle, true)
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}
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// 显示文本编辑控件
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showEditText(node, rect) {
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if (this.showTextEdit) {
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return
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}
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this.node = node
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if (!rect) rect = node._textData.node.node.getBoundingClientRect()
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this.mindMap.emit('before_show_text_edit')
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this.mindMap.renderer.textEdit.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;box-shadow: 0 0 20px rgba(0,0,0,.5);outline: none; word-break: break-all;padding: 3px 5px;margin-left: -5px;margin-top: -3px;`
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document.body.appendChild(this.textEditNode)
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}
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// 原始宽高
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let g = node._textData.node
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let originWidth = g.attr('data-width')
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let originHeight = g.attr('data-height')
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// 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
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let bgColor = node.style.merge('fillColor')
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this.textEditNode.style.backgroundColor = bgColor === 'transparent' ? '#fff' : bgColor
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this.textEditNode.style.minWidth = originWidth + 'px'
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this.textEditNode.style.minHeight = originHeight + 'px'
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this.textEditNode.style.left =
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rect.left + (rect.width - originWidth) / 2 + 'px'
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this.textEditNode.style.top =
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rect.top + (rect.height - originHeight) / 2 + 'px'
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this.textEditNode.style.display = 'block'
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this.textEditNode.style.maxWidth = this.mindMap.opt.textAutoWrapWidth + 'px'
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this.textEditNode.style.transform = `scale(${rect.width / originWidth}, ${
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rect.height / originHeight
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})`
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if (!node.nodeData.data.richText) {
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// 还不是富文本的情况
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let text = node.nodeData.data.text.split(/\n/gim).join('<br>')
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let html = `<p>${text}</p>`
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this.textEditNode.innerHTML = html
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} else {
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this.textEditNode.innerHTML = node.nodeData.data.text
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}
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this.initQuillEditor()
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document.querySelector('.ql-editor').style.minHeight = originHeight + 'px'
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this.showTextEdit = true
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this.focus()
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if (!node.nodeData.data.richText) {
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// 如果是非富文本的情况，需要手动应用文本样式
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this.setTextStyleIfNotRichText(node)
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}
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}
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// 如果是非富文本的情况，需要手动应用文本样式
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setTextStyleIfNotRichText(node) {
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let style = {
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font: node.style.merge('fontFamily'),
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color: node.style.merge('color'),
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italic: node.style.merge('fontStyle') === 'italic',
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bold: node.style.merge('fontWeight') === 'bold',
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size: node.style.merge('fontSize') + 'px',
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underline: node.style.merge('textDecoration') === 'underline',
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strike: node.style.merge('textDecoration') === 'line-through'
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}
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this.formatAllText(style)
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}
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// 隐藏文本编辑控件，即完成编辑
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hideEditText() {
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if (!this.showTextEdit) {
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return
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}
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let html = this.quill.container.firstChild.innerHTML
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// 去除最后的空行
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html = html.replace(/<p><br><\/p>$/, '')
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this.mindMap.renderer.activeNodeList.forEach(node => {
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this.mindMap.execCommand('SET_NODE_TEXT', node, html, true)
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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.mindMap.renderer.activeNodeList
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)
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this.textEditNode.style.display = 'none'
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this.showTextEdit = false
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this.mindMap.emit('rich_text_selection_change', false)
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this.node = null
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}
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// 初始化Quill富文本编辑器
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initQuillEditor() {
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this.quill = new Quill(this.textEditNode, {
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modules: {
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toolbar: false,
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keyboard: {
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bindings: {
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enter: {
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key: 13,
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handler: function () {
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// 覆盖默认的回车键换行
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}
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}
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}
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}
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},
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theme: 'snow'
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})
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this.quill.on('selection-change', range => {
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this.lastRange = this.range
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this.range = null
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if (range) {
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let bounds = this.quill.getBounds(range.index, range.length)
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let rect = this.textEditNode.getBoundingClientRect()
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let rectInfo = {
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left: bounds.left + rect.left,
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top: bounds.top + rect.top,
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right: bounds.right + rect.left,
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bottom: bounds.bottom + rect.top,
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width: bounds.width
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}
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let formatInfo = this.quill.getFormat(range.index, range.length)
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let hasRange = false
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if (range.length == 0) {
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hasRange = false
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} else {
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this.range = range
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hasRange = true
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}
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this.mindMap.emit(
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'rich_text_selection_change',
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hasRange,
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rectInfo,
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formatInfo
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)
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}
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})
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}
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// 选中全部
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selectAll() {
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this.quill.setSelection(0, this.quill.getLength())
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}
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// 聚焦
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focus() {
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let len = this.quill.getLength()
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this.quill.setSelection(len, len)
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}
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// 格式化当前选中的文本
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formatText(config = {}, clear = false) {
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if (!this.range && !this.lastRange) return
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this.syncFormatToNodeConfig(config, clear)
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let rangeLost = !this.range
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let range = rangeLost ? this.lastRange : this.range
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clear ? this.quill.removeFormat(range.index, range.length) : this.quill.formatText(range.index, range.length, config)
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if (rangeLost) {
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this.quill.setSelection(this.lastRange.index, this.lastRange.length)
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}
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}
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// 清除当前选中文本的样式
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removeFormat() {
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this.formatText({}, true)
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}
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// 格式化指定范围的文本
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formatRangeText(range, config = {}) {
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if (!range) return
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this.syncFormatToNodeConfig(config)
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this.quill.formatText(range.index, range.length, config)
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}
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// 格式化所有文本
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formatAllText(config = {}) {
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this.syncFormatToNodeConfig(config)
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this.quill.formatText(0, this.quill.getLength(), config)
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}
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// 同步格式化到节点样式配置
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syncFormatToNodeConfig(config, clear) {
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if (!this.node) return
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if (clear) {
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// 清除文本样式
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['fontFamily', 'fontSize', 'fontWeight', 'fontStyle', 'textDecoration', 'color'].forEach((prop) => {
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delete this.node.nodeData.data[prop]
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})
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} else {
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let data = this.richTextStyleToNormalStyle(config)
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this.mindMap.renderer.setNodeData(this.node, data)
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}
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}
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// 将普通节点样式对象转换成富文本样式对象
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normalStyleToRichTextStyle(style) {
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let config = {}
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Object.keys(style).forEach(prop => {
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let value = style[prop]
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switch (prop) {
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case 'fontFamily':
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config.font = value
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break
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case 'fontSize':
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config.size = value + 'px'
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break
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case 'fontWeight':
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config.bold = value === 'bold'
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break
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case 'fontStyle':
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config.italic = value === 'italic'
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break
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case 'textDecoration':
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config.underline = value === 'underline'
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config.strike = value === 'line-through'
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break
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case 'color':
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config.color = value
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break
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default:
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break
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}
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})
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return config
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}
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// 将富文本样式对象转换成普通节点样式对象
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richTextStyleToNormalStyle(config) {
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let data = {}
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Object.keys(config).forEach(prop => {
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let value = config[prop]
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switch (prop) {
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case 'font':
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data.fontFamily = value
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break
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case 'size':
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data.fontSize = parseFloat(value)
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break
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case 'bold':
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data.fontWeight = value ? 'bold' : 'normal'
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break
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case 'italic':
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data.fontStyle = value ? 'italic' : 'normal'
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break
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case 'underline':
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data.textDecoration = value ? 'underline' : 'none'
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break
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case 'strike':
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data.textDecoration = value ? 'line-through' : 'none'
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break
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case 'color':
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data.color = value
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break
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default:
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break
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}
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})
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return data
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}
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// 将svg中嵌入的dom元素转换成图片
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async _handleSvgDomElements(svg) {
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svg = svg.clone()
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let foreignObjectList = svg.find('foreignObject')
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let task = foreignObjectList.map(async item => {
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let clone = item.first().node.cloneNode(true)
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let div = document.createElement('div')
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div.style.cssText = `position: fixed; left: -999999px;`
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div.appendChild(clone)
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this.mindMap.el.appendChild(div)
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let canvas = await html2canvas(clone, {
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backgroundColor: null
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})
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this.mindMap.el.removeChild(div)
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let imgNode = new SvgImage()
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.load(canvas.toDataURL())
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.size(canvas.width, canvas.height)
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item.replace(imgNode)
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})
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await Promise.all(task)
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return {
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svg: svg,
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svgHTML: svg.svg()
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}
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}
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// 将svg中嵌入的dom元素转换成图片
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handleSvgDomElements(svg) {
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return new Promise((resolve, reject) => {
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svg = svg.clone()
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let foreignObjectList = svg.find('foreignObject')
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let index = 0
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let len = foreignObjectList.length
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let transform = async () => {
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this.mindMap.emit('transforming-dom-to-images', index, len)
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try {
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let item = foreignObjectList[index++]
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let parent = item.parent()
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let clone = item.first().node.cloneNode(true)
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let div = document.createElement('div')
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div.style.cssText = `position: fixed; left: -999999px;`
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div.appendChild(clone)
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this.mindMap.el.appendChild(div)
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let canvas = await html2canvas(clone, {
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backgroundColor: null
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})
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// 优先使用原始宽高，因为当设备的window.devicePixelRatio不为1时，html2canvas输出的图片会更大
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let imgNodeWidth = parent.attr('data-width') || canvas.width
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let imgNodeHeight = parent.attr('data-height') || canvas.height
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this.mindMap.el.removeChild(div)
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let imgNode = new SvgImage()
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.load(canvas.toDataURL())
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.size(imgNodeWidth, imgNodeHeight)
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.x((parent ? parent.attr('data-offsetx') : 0) || 0)
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item.replace(imgNode)
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if (index <= len - 1) {
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setTimeout(() => {
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transform()
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}, 0)
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} else {
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resolve({
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svg: svg,
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svgHTML: svg.svg()
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})
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}
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} catch (error) {
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reject(error)
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}
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}
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if (len > 0) {
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transform()
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} else {
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resolve(null)
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}
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})
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}
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// 将所有节点转换成非富文本节点
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transformAllNodesToNormalNode() {
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let div = document.createElement('div')
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walk(
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this.mindMap.renderer.renderTree,
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null,
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node => {
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if (node.data.richText) {
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node.data.richText = false
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div.innerHTML = node.data.text
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node.data.text = div.textContent
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// delete node.data.uid
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}
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},
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null,
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true,
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0,
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0
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)
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// 清空历史数据，并且触发数据变化
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this.mindMap.command.clearHistory()
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this.mindMap.command.addHistory()
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this.mindMap.render(null, CONSTANTS.TRANSFORM_TO_NORMAL_NODE)
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}
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// 插件被移除前做的事情
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beforePluginRemove() {
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this.transformAllNodesToNormalNode()
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}
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}
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RichText.instanceName = 'richText'
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export default RichText
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