638 lines
17 KiB
JavaScript
638 lines
17 KiB
JavaScript
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import View from './src/core/view/View'
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import Event from './src/core/event/Event'
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import Render from './src/core/render/Render'
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import merge from 'deepmerge'
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import theme from './src/themes'
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import Style from './src/core/render/node/Style'
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import KeyCommand from './src/core/command/KeyCommand'
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import Command from './src/core/command/Command'
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import BatchExecution from './src/utils/BatchExecution'
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import {
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layoutValueList,
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CONSTANTS,
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ERROR_TYPES,
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cssContent
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} from './src/constants/constant'
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import { SVG } from '@svgdotjs/svg.js'
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import {
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simpleDeepClone,
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getObjectChangedProps,
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isUndef,
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handleGetSvgDataExtraContent,
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getNodeTreeBoundingRect
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} from './src/utils'
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import defaultTheme, {
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checkIsNodeSizeIndependenceConfig
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} from './src/themes/default'
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import { defaultOpt } from './src/constants/defaultOptions'
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// 思维导图
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class MindMap {
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// 构造函数
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/**
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*
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* @param {defaultOpt} opt
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*/
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constructor(opt = {}) {
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// 合并选项
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this.opt = this.handleOpt(merge(defaultOpt, opt))
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// 预处理节点数据
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this.opt.data = this.handleData(this.opt.data)
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// 容器元素
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this.el = this.opt.el
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if (!this.el) throw new Error('缺少容器元素el')
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// 获取容器尺寸位置信息
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this.getElRectInfo()
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// 画布初始大小
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this.initWidth = this.width
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this.initHeight = this.height
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// 添加css
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this.cssEl = null
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this.addCss()
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// 画布
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this.initContainer()
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// 初始化主题
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this.initTheme()
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// 初始化缓存数据
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this.initCache()
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// 事件类
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this.event = new Event({
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mindMap: this
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})
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// 按键类
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this.keyCommand = new KeyCommand({
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mindMap: this
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})
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// 命令类
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this.command = new Command({
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mindMap: this
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})
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// 渲染类
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this.renderer = new Render({
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mindMap: this
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})
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// 视图操作类
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this.view = new View({
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mindMap: this
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})
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// 批量执行类
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this.batchExecution = new BatchExecution()
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// 注册插件
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MindMap.pluginList.forEach(plugin => {
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this.initPlugin(plugin)
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})
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// 初始渲染
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this.render(this.opt.fit ? () => this.view.fit() : () => {})
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setTimeout(() => {
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if (this.opt.data) this.command.addHistory()
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}, 0)
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}
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// 配置参数处理
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handleOpt(opt) {
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// 检查布局配置
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if (!layoutValueList.includes(opt.layout)) {
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opt.layout = CONSTANTS.LAYOUT.LOGICAL_STRUCTURE
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}
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// 检查主题配置
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opt.theme = opt.theme && theme[opt.theme] ? opt.theme : 'default'
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return opt
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}
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// 预处理节点数据
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handleData(data) {
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if (isUndef(data) || Object.keys(data).length <= 0) return null
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data = simpleDeepClone(data || {})
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// 根节点不能收起
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if (data.data && !data.data.expand) {
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data.data.expand = true
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}
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return data
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}
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// 创建容器元素
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initContainer() {
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const { associativeLineIsAlwaysAboveNode } = this.opt
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// 给容器元素添加一个类名
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this.el.classList.add('smm-mind-map-container')
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// 节点关联线容器
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const createAssociativeLineDraw = () => {
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this.associativeLineDraw = this.draw.group()
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this.associativeLineDraw.addClass('smm-associative-line-container')
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}
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// 画布
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this.svg = SVG().addTo(this.el).size(this.width, this.height)
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// 容器
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this.draw = this.svg.group()
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this.draw.addClass('smm-container')
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// 节点连线容器
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this.lineDraw = this.draw.group()
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this.lineDraw.addClass('smm-line-container')
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// 默认处于节点下方
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if (!associativeLineIsAlwaysAboveNode) {
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createAssociativeLineDraw()
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}
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// 节点容器
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this.nodeDraw = this.draw.group()
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this.nodeDraw.addClass('smm-node-container')
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// 关联线始终处于节点上方
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if (associativeLineIsAlwaysAboveNode) {
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createAssociativeLineDraw()
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}
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// 其他内容的容器
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this.otherDraw = this.draw.group()
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this.otherDraw.addClass('smm-other-container')
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}
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// 清空各容器
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clearDraw() {
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this.lineDraw.clear()
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this.associativeLineDraw.clear()
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this.nodeDraw.clear()
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this.otherDraw.clear()
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}
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// 添加必要的css样式到页面
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addCss() {
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this.cssEl = document.createElement('style')
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this.cssEl.type = 'text/css'
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this.cssEl.innerHTML = cssContent
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document.head.appendChild(this.cssEl)
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}
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// 移除css
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removeCss() {
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document.head.removeChild(this.cssEl)
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}
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// 渲染，部分渲染
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render(callback, source = '') {
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this.batchExecution.push('render', () => {
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this.initTheme()
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this.renderer.render(callback, source)
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})
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}
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// 重新渲染
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reRender(callback, source = '') {
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this.renderer.reRender = true // 标记为重新渲染
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this.renderer.clearCache() // 清空节点缓存池
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this.clearDraw() // 清空画布
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this.render(callback, source)
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}
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// 获取或更新容器尺寸位置信息
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getElRectInfo() {
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this.elRect = this.el.getBoundingClientRect()
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this.width = this.elRect.width
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this.height = this.elRect.height
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if (this.width <= 0 || this.height <= 0)
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throw new Error('容器元素el的宽高不能为0')
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}
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// 容器尺寸变化，调整尺寸
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resize() {
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const oldWidth = this.width
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const oldHeight = this.height
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this.getElRectInfo()
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this.svg.size(this.width, this.height)
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if (oldWidth !== this.width || oldHeight !== this.height) {
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// 如果画布宽高改变了需要触发一次渲染
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this.render()
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}
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this.emit('resize')
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}
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// 监听事件
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on(event, fn) {
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this.event.on(event, fn)
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}
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// 触发事件
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emit(event, ...args) {
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this.event.emit(event, ...args)
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}
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// 解绑事件
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off(event, fn) {
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this.event.off(event, fn)
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}
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// 初始化缓存数据
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initCache() {
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this.commonCaches = {
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measureCustomNodeContentSizeEl: null,
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measureRichtextNodeTextSizeEl: null
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}
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}
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// 设置主题
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initTheme() {
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// 合并主题配置
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this.themeConfig = merge(theme[this.opt.theme], this.opt.themeConfig)
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// 设置背景样式
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Style.setBackgroundStyle(this.el, this.themeConfig)
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}
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// 设置主题
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setTheme(theme, notRender = false) {
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this.execCommand('CLEAR_ACTIVE_NODE')
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this.opt.theme = theme
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if (!notRender) {
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this.render(null, CONSTANTS.CHANGE_THEME)
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}
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this.emit('view_theme_change', theme)
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}
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// 获取当前主题
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getTheme() {
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return this.opt.theme
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}
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// 设置主题配置
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setThemeConfig(config, notRender = false) {
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// 计算改变了的配置
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const changedConfig = getObjectChangedProps(this.themeConfig, config)
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this.opt.themeConfig = config
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if (!notRender) {
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// 检查改变的是否是节点大小无关的主题属性
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let res = checkIsNodeSizeIndependenceConfig(changedConfig)
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this.render(null, res ? '' : CONSTANTS.CHANGE_THEME)
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}
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}
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// 获取自定义主题配置
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getCustomThemeConfig() {
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return this.opt.themeConfig
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}
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// 获取某个主题配置值
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getThemeConfig(prop) {
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return prop === undefined ? this.themeConfig : this.themeConfig[prop]
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}
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// 获取配置
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getConfig(prop) {
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return prop === undefined ? this.opt : this.opt[prop]
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}
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// 更新配置
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updateConfig(opt = {}) {
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this.emit('before_update_config', this.opt)
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this.opt = this.handleOpt(merge.all([defaultOpt, this.opt, opt]))
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this.emit('after_update_config', this.opt)
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}
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// 获取当前布局结构
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getLayout() {
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return this.opt.layout
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}
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// 设置布局结构
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setLayout(layout, notRender = false) {
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// 检查布局配置
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if (!layoutValueList.includes(layout)) {
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layout = CONSTANTS.LAYOUT.LOGICAL_STRUCTURE
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}
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this.opt.layout = layout
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this.view.reset()
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this.renderer.setLayout()
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if (!notRender) {
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this.render(null, CONSTANTS.CHANGE_LAYOUT)
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}
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this.emit('layout_change', layout)
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}
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// 执行命令
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execCommand(...args) {
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this.command.exec(...args)
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}
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// 更新画布数据，如果新的数据是在当前画布节点数据基础上增删改查后形成的，那么可以使用该方法来更新画布数据
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updateData(data) {
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this.renderer.setData(data)
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this.render()
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this.command.addHistory()
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}
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// 动态设置思维导图数据，纯节点数据
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setData(data) {
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data = this.handleData(data)
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this.opt.data = data
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this.execCommand('CLEAR_ACTIVE_NODE')
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this.command.clearHistory()
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this.command.addHistory()
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this.renderer.setData(data)
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this.reRender(() => {}, CONSTANTS.SET_DATA)
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this.emit('set_data', data)
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}
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// 动态设置思维导图数据，包括节点数据、布局、主题、视图
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setFullData(data) {
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if (data.root) {
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this.setData(data.root)
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}
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if (data.layout) {
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this.setLayout(data.layout)
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}
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if (data.theme) {
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if (data.theme.template) {
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this.setTheme(data.theme.template)
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}
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if (data.theme.config) {
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this.setThemeConfig(data.theme.config)
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}
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}
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if (data.view) {
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this.view.setTransformData(data.view)
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}
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}
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// 获取思维导图数据，节点树、主题、布局等
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getData(withConfig) {
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|||
|
|
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) {
|
|||
|
|
try {
|
|||
|
|
if (!this.doExport) {
|
|||
|
|
throw new Error('请注册Export插件！')
|
|||
|
|
}
|
|||
|
|
let result = await this.doExport.export(...args)
|
|||
|
|
return result
|
|||
|
|
} catch (error) {
|
|||
|
|
this.opt.errorHandler(ERROR_TYPES.EXPORT_ERROR, error)
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// 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
|
|||
|
|
}
|
|||
|
|
const isReadonly = mode === CONSTANTS.MODE.READONLY
|
|||
|
|
if (isReadonly === this.opt.readonly) return
|
|||
|
|
this.opt.readonly = isReadonly
|
|||
|
|
if (this.opt.readonly) {
|
|||
|
|
// 取消当前激活的元素
|
|||
|
|
this.execCommand('CLEAR_ACTIVE_NODE')
|
|||
|
|
}
|
|||
|
|
this.emit('mode_change', mode)
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// 获取svg数据
|
|||
|
|
getSvgData({
|
|||
|
|
paddingX = 0,
|
|||
|
|
paddingY = 0,
|
|||
|
|
ignoreWatermark = false,
|
|||
|
|
addContentToHeader,
|
|||
|
|
addContentToFooter,
|
|||
|
|
node
|
|||
|
|
} = {}) {
|
|||
|
|
const { watermarkConfig, openPerformance } = this.opt
|
|||
|
|
// 如果开启了性能模式，那么需要先渲染所有节点
|
|||
|
|
if (openPerformance) {
|
|||
|
|
this.renderer.forceLoadNode(node)
|
|||
|
|
}
|
|||
|
|
const { cssTextList, header, headerHeight, footer, footerHeight } =
|
|||
|
|
handleGetSvgDataExtraContent({
|
|||
|
|
addContentToHeader,
|
|||
|
|
addContentToFooter
|
|||
|
|
})
|
|||
|
|
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.elRect
|
|||
|
|
// 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()
|
|||
|
|
// 需要裁减的区域
|
|||
|
|
let clipData = null
|
|||
|
|
if (node) {
|
|||
|
|
clipData = getNodeTreeBoundingRect(
|
|||
|
|
node,
|
|||
|
|
rect.x,
|
|||
|
|
rect.y,
|
|||
|
|
paddingX,
|
|||
|
|
paddingY
|
|||
|
|
)
|
|||
|
|
}
|
|||
|
|
// 内边距
|
|||
|
|
const fixHeight = 0
|
|||
|
|
rect.width += paddingX * 2
|
|||
|
|
rect.height += paddingY * 2 + fixHeight + headerHeight + footerHeight
|
|||
|
|
draw.translate(paddingX, paddingY)
|
|||
|
|
// 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()
|
|||
|
|
// 是否存在水印
|
|||
|
|
const hasWatermark = this.watermark && this.watermark.hasWatermark()
|
|||
|
|
if (!ignoreWatermark && hasWatermark) {
|
|||
|
|
this.watermark.isInExport = true
|
|||
|
|
// 是否是仅导出时需要水印
|
|||
|
|
const { onlyExport } = watermarkConfig
|
|||
|
|
// 是否需要重新绘制水印
|
|||
|
|
const needReDrawWatermark =
|
|||
|
|
rect.width > origWidth || rect.height > origHeight
|
|||
|
|
// 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 (needReDrawWatermark) {
|
|||
|
|
this.width = rect.width
|
|||
|
|
this.height = rect.height
|
|||
|
|
this.watermark.onResize()
|
|||
|
|
clone = svg.clone()
|
|||
|
|
this.width = origWidth
|
|||
|
|
this.height = origHeight
|
|||
|
|
this.watermark.onResize()
|
|||
|
|
} else if (onlyExport) {
|
|||
|
|
// 如果是仅导出时需要水印，那么需要进行绘制
|
|||
|
|
this.watermark.onResize()
|
|||
|
|
clone = svg.clone()
|
|||
|
|
}
|
|||
|
|
// 如果是仅导出时需要水印，需要清除
|
|||
|
|
if (onlyExport) {
|
|||
|
|
this.watermark.clear()
|
|||
|
|
}
|
|||
|
|
this.watermark.isInExport = false
|
|||
|
|
}
|
|||
|
|
// 添加必要的样式
|
|||
|
|
;[cssContent, ...cssTextList].forEach(s => {
|
|||
|
|
clone.add(SVG(`<style>${s}</style>`))
|
|||
|
|
})
|
|||
|
|
// 附加内容
|
|||
|
|
if (header && headerHeight > 0) {
|
|||
|
|
clone.findOne('.smm-container').translate(0, headerHeight)
|
|||
|
|
header.width(rect.width)
|
|||
|
|
header.y(paddingY)
|
|||
|
|
clone.add(header, 0)
|
|||
|
|
}
|
|||
|
|
if (footer && footerHeight > 0) {
|
|||
|
|
footer.width(rect.width)
|
|||
|
|
footer.y(rect.height - paddingY - footerHeight)
|
|||
|
|
clone.add(footer)
|
|||
|
|
}
|
|||
|
|
// 修正defs里定义的元素的id，因为clone时defs里的元素的id会继续递增，导致和内容中引用的id对不上
|
|||
|
|
const defs = svg.find('defs')
|
|||
|
|
const defs2 = clone.find('defs')
|
|||
|
|
defs.forEach((def, defIndex) => {
|
|||
|
|
const def2 = defs2[defIndex]
|
|||
|
|
if (!def2) return
|
|||
|
|
const children = def.children()
|
|||
|
|
const children2 = def2.children()
|
|||
|
|
for (let i = 0; i < children.length; i++) {
|
|||
|
|
const child = children[i]
|
|||
|
|
const child2 = children2[i]
|
|||
|
|
if (child && child2) {
|
|||
|
|
child2.attr('id', child.attr('id'))
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
})
|
|||
|
|
// 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
|
|||
|
|
clipData,
|
|||
|
|
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() {
|
|||
|
|
this.emit('beforeDestroy')
|
|||
|
|
// 清除节点编辑框
|
|||
|
|
this.renderer.textEdit.hideEditTextBox()
|
|||
|
|
this.renderer.textEdit.removeTextEditEl()
|
|||
|
|
// 移除插件
|
|||
|
|
;[...MindMap.pluginList].forEach(plugin => {
|
|||
|
|
if (
|
|||
|
|
this[plugin.instanceName] &&
|
|||
|
|
this[plugin.instanceName].beforePluginDestroy
|
|||
|
|
) {
|
|||
|
|
this[plugin.instanceName].beforePluginDestroy()
|
|||
|
|
}
|
|||
|
|
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)
|
|||
|
|
// 移除给容器元素添加的类名
|
|||
|
|
this.el.classList.remove('smm-mind-map-container')
|
|||
|
|
this.el.innerHTML = ''
|
|||
|
|
this.el = null
|
|||
|
|
this.removeCss()
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// 插件列表
|
|||
|
|
MindMap.pluginList = []
|
|||
|
|
MindMap.usePlugin = (plugin, opt = {}) => {
|
|||
|
|
if (MindMap.hasPlugin(plugin) !== -1) return MindMap
|
|||
|
|
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
|