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

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import merge from 'deepmerge'
import LogicalStructure from '../../layouts/LogicalStructure'
import MindMap from '../../layouts/MindMap'
import CatalogOrganization from '../../layouts/CatalogOrganization'
import OrganizationStructure from '../../layouts/OrganizationStructure'
import Timeline from '../../layouts/Timeline'
import VerticalTimeline from '../../layouts/VerticalTimeline'
import Fishbone from '../../layouts/Fishbone'
import TextEdit from './TextEdit'
import {
copyNodeTree,
simpleDeepClone,
walk,
bfsWalk,
loadImage,
isUndef,
getTopAncestorsFomNodeList,
addDataToAppointNodes,
createUidForAppointNodes,
formatDataToArray,
removeFromParentNodeData,
createUid,
getNodeDataIndex,
getNodeIndexInNodeList,
setDataToClipboard,
getDataFromClipboard,
htmlEscape,
parseAddGeneralizationNodeList
} from '../../utils'
import { shapeList } from './node/Shape'
import { lineStyleProps } from '../../themes/default'
import { CONSTANTS, ERROR_TYPES } from '../../constants/constant'
// 布局列表
const layouts = {
// 逻辑结构图
[CONSTANTS.LAYOUT.LOGICAL_STRUCTURE]: LogicalStructure,
// 思维导图
[CONSTANTS.LAYOUT.MIND_MAP]: MindMap,
// 目录组织图
[CONSTANTS.LAYOUT.CATALOG_ORGANIZATION]: CatalogOrganization,
// 组织结构图
[CONSTANTS.LAYOUT.ORGANIZATION_STRUCTURE]: OrganizationStructure,
// 时间轴
[CONSTANTS.LAYOUT.TIMELINE]: Timeline,
// 时间轴2
[CONSTANTS.LAYOUT.TIMELINE2]: Timeline,
// 竖向时间轴
[CONSTANTS.LAYOUT.VERTICAL_TIMELINE]: VerticalTimeline,
// 鱼骨图
[CONSTANTS.LAYOUT.FISHBONE]: Fishbone
}
// 渲染
class Render {
// 构造函数
constructor(opt = {}) {
this.opt = opt
this.mindMap = opt.mindMap
this.themeConfig = this.mindMap.themeConfig
// 渲染树,操作过程中修改的都是这里的数据
this.renderTree = merge({}, this.mindMap.opt.data || {})
// 是否重新渲染
this.reRender = false
// 是否正在渲染中
this.isRendering = false
// 是否存在等待渲染
this.hasWaitRendering = false
this.waitRenderingParams = []
// 用于缓存节点
this.nodeCache = {}
this.lastNodeCache = {}
// 触发render的来源
this.renderSource = ''
// 当前激活的节点列表
this.activeNodeList = []
// 根节点
this.root = null
// 文本编辑框需要再bindEvent之前实例化否则单击事件只能触发隐藏文本编辑框而无法保存文本修改
this.textEdit = new TextEdit(this)
// 当前复制的数据
this.lastBeingCopyData = null
this.beingCopyData = null
this.beingPasteText = ''
this.beingPasteImgSize = 0
this.currentBeingPasteType = ''
// 布局
this.setLayout()
// 绑定事件
this.bindEvent()
// 注册命令
this.registerCommands()
// 注册快捷键
this.registerShortcutKeys()
}
// 设置布局结构
setLayout() {
this.layout = new (
layouts[this.mindMap.opt.layout]
? layouts[this.mindMap.opt.layout]
: layouts[CONSTANTS.LAYOUT.LOGICAL_STRUCTURE]
)(this, this.mindMap.opt.layout)
}
// 重新设置思维导图数据
setData(data) {
if (this.mindMap.richText) {
this.renderTree = this.mindMap.richText.handleSetData(data)
} else {
this.renderTree = data
}
}
// 绑定事件
bindEvent() {
// 画布点击事件清除当前激活节点列表
this.mindMap.on('draw_click', e => {
this.clearActiveNodeListOnDrawClick(e, 'click')
})
// 画布右键事件事件清除当前激活节点列表
this.mindMap.on('contextmenu', e => {
this.clearActiveNodeListOnDrawClick(e, 'contextmenu')
})
// 鼠标双击回到根节点
this.mindMap.svg.on('dblclick', () => {
if (!this.mindMap.opt.enableDblclickBackToRootNode) return
this.setRootNodeCenter()
})
// let timer = null
// this.mindMap.on('view_data_change', () => {
// clearTimeout(timer)
// timer = setTimeout(() => {
// this.render()
// }, 300)
// })
}
// 注册命令
registerCommands() {
// 全选
this.selectAll = this.selectAll.bind(this)
this.mindMap.command.add('SELECT_ALL', this.selectAll)
// 回退
this.back = this.back.bind(this)
this.mindMap.command.add('BACK', this.back)
// 前进
this.forward = this.forward.bind(this)
this.mindMap.command.add('FORWARD', this.forward)
// 插入同级节点
this.insertNode = this.insertNode.bind(this)
this.mindMap.command.add('INSERT_NODE', this.insertNode)
// 插入多个同级节点
this.insertMultiNode = this.insertMultiNode.bind(this)
this.mindMap.command.add('INSERT_MULTI_NODE', this.insertMultiNode)
// 插入子节点
this.insertChildNode = this.insertChildNode.bind(this)
this.mindMap.command.add('INSERT_CHILD_NODE', this.insertChildNode)
// 插入多个子节点
this.insertMultiChildNode = this.insertMultiChildNode.bind(this)
this.mindMap.command.add(
'INSERT_MULTI_CHILD_NODE',
this.insertMultiChildNode
)
// 插入父节点
this.insertParentNode = this.insertParentNode.bind(this)
this.mindMap.command.add('INSERT_PARENT_NODE', this.insertParentNode)
// 上移节点
this.upNode = this.upNode.bind(this)
this.mindMap.command.add('UP_NODE', this.upNode)
// 下移节点
this.downNode = this.downNode.bind(this)
this.mindMap.command.add('DOWN_NODE', this.downNode)
// 移动节点
this.insertAfter = this.insertAfter.bind(this)
this.mindMap.command.add('INSERT_AFTER', this.insertAfter)
this.insertBefore = this.insertBefore.bind(this)
this.mindMap.command.add('INSERT_BEFORE', this.insertBefore)
this.moveNodeTo = this.moveNodeTo.bind(this)
this.mindMap.command.add('MOVE_NODE_TO', this.moveNodeTo)
// 删除节点
this.removeNode = this.removeNode.bind(this)
this.mindMap.command.add('REMOVE_NODE', this.removeNode)
// 仅删除当前节点
this.removeCurrentNode = this.removeCurrentNode.bind(this)
this.mindMap.command.add('REMOVE_CURRENT_NODE', this.removeCurrentNode)
// 粘贴节点
this.pasteNode = this.pasteNode.bind(this)
this.mindMap.command.add('PASTE_NODE', this.pasteNode)
// 剪切节点
this.cutNode = this.cutNode.bind(this)
this.mindMap.command.add('CUT_NODE', this.cutNode)
// 修改节点单个样式
this.setNodeStyle = this.setNodeStyle.bind(this)
this.mindMap.command.add('SET_NODE_STYLE', this.setNodeStyle)
// 修改节点多个样式
this.setNodeStyles = this.setNodeStyles.bind(this)
this.mindMap.command.add('SET_NODE_STYLES', this.setNodeStyles)
// 切换节点是否激活
this.setNodeActive = this.setNodeActive.bind(this)
this.mindMap.command.add('SET_NODE_ACTIVE', this.setNodeActive)
// 清除所有激活节点
this.clearActiveNode = this.clearActiveNode.bind(this)
this.mindMap.command.add('CLEAR_ACTIVE_NODE', this.clearActiveNode)
// 切换节点是否展开
this.setNodeExpand = this.setNodeExpand.bind(this)
this.mindMap.command.add('SET_NODE_EXPAND', this.setNodeExpand)
// 展开所有节点
this.expandAllNode = this.expandAllNode.bind(this)
this.mindMap.command.add('EXPAND_ALL', this.expandAllNode)
// 收起所有节点
this.unexpandAllNode = this.unexpandAllNode.bind(this)
this.mindMap.command.add('UNEXPAND_ALL', this.unexpandAllNode)
// 展开到指定层级
this.expandToLevel = this.expandToLevel.bind(this)
this.mindMap.command.add('UNEXPAND_TO_LEVEL', this.expandToLevel)
// 设置节点数据
this.setNodeData = this.setNodeData.bind(this)
this.mindMap.command.add('SET_NODE_DATA', this.setNodeData)
// 设置节点文本
this.setNodeText = this.setNodeText.bind(this)
this.mindMap.command.add('SET_NODE_TEXT', this.setNodeText)
// 设置节点图片
this.setNodeImage = this.setNodeImage.bind(this)
this.mindMap.command.add('SET_NODE_IMAGE', this.setNodeImage)
// 设置节点图标
this.setNodeIcon = this.setNodeIcon.bind(this)
this.mindMap.command.add('SET_NODE_ICON', this.setNodeIcon)
// 设置节点超链接
this.setNodeHyperlink = this.setNodeHyperlink.bind(this)
this.mindMap.command.add('SET_NODE_HYPERLINK', this.setNodeHyperlink)
// 设置节点备注
this.setNodeNote = this.setNodeNote.bind(this)
this.mindMap.command.add('SET_NODE_NOTE', this.setNodeNote)
// 设置节点标签
this.setNodeTag = this.setNodeTag.bind(this)
this.mindMap.command.add('SET_NODE_TAG', this.setNodeTag)
// 设置节点公式
this.insertFormula = this.insertFormula.bind(this)
this.mindMap.command.add('INSERT_FORMULA', this.insertFormula)
// 添加节点概要
this.addGeneralization = this.addGeneralization.bind(this)
this.mindMap.command.add('ADD_GENERALIZATION', this.addGeneralization)
// 删除节点概要
this.removeGeneralization = this.removeGeneralization.bind(this)
this.mindMap.command.add('REMOVE_GENERALIZATION', this.removeGeneralization)
// 设置节点自定义位置
this.setNodeCustomPosition = this.setNodeCustomPosition.bind(this)
this.mindMap.command.add(
'SET_NODE_CUSTOM_POSITION',
this.setNodeCustomPosition
)
// 一键整理布局
this.resetLayout = this.resetLayout.bind(this)
this.mindMap.command.add('RESET_LAYOUT', this.resetLayout)
// 设置节点形状
this.setNodeShape = this.setNodeShape.bind(this)
this.mindMap.command.add('SET_NODE_SHAPE', this.setNodeShape)
// 定位节点
this.goTargetNode = this.goTargetNode.bind(this)
this.mindMap.command.add('GO_TARGET_NODE', this.goTargetNode)
}
// 注册快捷键
registerShortcutKeys() {
// 插入下级节点
this.mindMap.keyCommand.addShortcut('Tab', () => {
this.mindMap.execCommand('INSERT_CHILD_NODE')
})
// 插入同级节点
this.mindMap.keyCommand.addShortcut('Enter', () => {
if (this.textEdit.showTextEdit) {
return
}
this.mindMap.execCommand('INSERT_NODE')
})
// 插入父节点
this.mindMap.keyCommand.addShortcut('Shift+Tab', () => {
this.mindMap.execCommand('INSERT_PARENT_NODE')
})
// 插入概要
this.mindMap.keyCommand.addShortcut('Control+g', () => {
this.mindMap.execCommand('ADD_GENERALIZATION')
})
// 展开/收起节点
this.toggleActiveExpand = this.toggleActiveExpand.bind(this)
this.mindMap.keyCommand.addShortcut('/', this.toggleActiveExpand)
// 删除节点
this.mindMap.keyCommand.addShortcut('Del|Backspace', () => {
this.mindMap.execCommand('REMOVE_NODE')
})
// 仅删除当前节点
this.mindMap.keyCommand.addShortcut('Shift+Backspace', () => {
this.mindMap.execCommand('REMOVE_CURRENT_NODE')
})
// 节点编辑时某些快捷键会存在冲突,需要暂时去除
this.mindMap.on('before_show_text_edit', () => {
this.startTextEdit()
})
this.mindMap.on('hide_text_edit', () => {
this.endTextEdit()
})
// 全选
this.mindMap.keyCommand.addShortcut('Control+a', () => {
this.mindMap.execCommand('SELECT_ALL')
})
// 一键整理布局
this.mindMap.keyCommand.addShortcut('Control+l', () => {
this.mindMap.execCommand('RESET_LAYOUT', this.resetLayout)
})
// 上移节点
this.mindMap.keyCommand.addShortcut('Control+Up', () => {
this.mindMap.execCommand('UP_NODE')
})
// 下移节点
this.mindMap.keyCommand.addShortcut('Control+Down', () => {
this.mindMap.execCommand('DOWN_NODE')
})
// 复制节点、剪切节点、粘贴节点的快捷键需开发者自行注册实现可参考demo
this.mindMap.keyCommand.addShortcut('Control+c', () => {
this.copy()
})
this.mindMap.keyCommand.addShortcut('Control+v', () => {
this.onPaste()
})
this.mindMap.keyCommand.addShortcut('Control+x', () => {
this.cut()
})
// 根节点居中显示
this.mindMap.keyCommand.addShortcut('Control+Enter', () => {
this.setRootNodeCenter()
})
}
// 鼠标点击画布时清空当前激活节点列表
clearActiveNodeListOnDrawClick(e, eventType) {
if (this.activeNodeList.length <= 0) return
// 清除激活状态
let isTrueClick = true
// 是否是左键多选节点,右键拖动画布
const { useLeftKeySelectionRightKeyDrag } = this.mindMap.opt
// 如果鼠标按下和松开的距离较大,则不认为是点击事件
if (
eventType === 'contextmenu'
? !useLeftKeySelectionRightKeyDrag
: useLeftKeySelectionRightKeyDrag
) {
const mousedownPos = this.mindMap.event.mousedownPos
isTrueClick =
Math.abs(e.clientX - mousedownPos.x) <= 5 &&
Math.abs(e.clientY - mousedownPos.y) <= 5
}
if (isTrueClick) {
this.mindMap.execCommand('CLEAR_ACTIVE_NODE')
}
}
// 开启文字编辑,会禁用回车键和删除键相关快捷键防止冲突
startTextEdit() {
this.mindMap.keyCommand.save()
}
// 结束文字编辑,会恢复回车键和删除键相关快捷键
endTextEdit() {
this.mindMap.keyCommand.restore()
}
// 渲染
render(callback = () => {}, source) {
// 如果当前还没有渲染完毕,不再触发渲染
if (this.isRendering) {
// 等待当前渲染完毕后再进行一次渲染
this.hasWaitRendering = true
this.waitRenderingParams = [callback, source]
return
}
this.isRendering = true
// 触发当前重新渲染的来源
this.renderSource = source
// 节点缓存
this.lastNodeCache = this.nodeCache
this.nodeCache = {}
// 重新渲染需要清除激活状态
if (this.reRender) {
this.clearActiveNodeList()
}
// 计算布局
this.layout.doLayout(root => {
// 删除本次渲染时不再需要的节点
Object.keys(this.lastNodeCache).forEach(uid => {
if (!this.nodeCache[uid]) {
// 从激活节点列表里删除
this.removeNodeFromActiveList(this.lastNodeCache[uid])
this.emitNodeActiveEvent()
// 调用节点的销毁方法
this.lastNodeCache[uid].destroy()
}
})
// 更新根节点
this.root = root
// 渲染节点
this.root.render(() => {
this.isRendering = false
this.mindMap.emit('node_tree_render_end')
callback && callback()
if (this.hasWaitRendering) {
const params = this.waitRenderingParams
this.hasWaitRendering = false
this.waitRenderingParams = []
this.render(...params)
} else {
// 触发一次保存,因为修改了渲染树的数据
if (
this.mindMap.richText &&
[CONSTANTS.CHANGE_THEME, CONSTANTS.SET_DATA].includes(source)
) {
this.mindMap.command.addHistory()
}
}
})
})
this.emitNodeActiveEvent()
}
// 清除当前所有激活节点,并会触发事件
clearActiveNode() {
if (this.activeNodeList.length <= 0) {
return
}
this.clearActiveNodeList()
this.mindMap.emit('node_active', null, [])
}
// 清除当前激活的节点列表
clearActiveNodeList() {
this.activeNodeList.forEach(item => {
this.mindMap.execCommand('SET_NODE_ACTIVE', item, false)
})
this.activeNodeList = []
}
// 添加节点到激活列表里
addNodeToActiveList(node) {
const index = this.findActiveNodeIndex(node)
if (index === -1) {
this.mindMap.execCommand('SET_NODE_ACTIVE', node, true)
this.activeNodeList.push(node)
}
}
// 在激活列表里移除某个节点
removeNodeFromActiveList(node) {
let index = this.findActiveNodeIndex(node)
if (index === -1) {
return
}
this.mindMap.execCommand('SET_NODE_ACTIVE', node, false)
this.activeNodeList.splice(index, 1)
}
// 检索某个节点在激活列表里的索引
findActiveNodeIndex(node) {
return getNodeIndexInNodeList(node, this.activeNodeList)
}
// 全选
selectAll() {
if (this.mindMap.opt.readonly) return
walk(
this.root,
null,
node => {
if (!node.getData('isActive')) {
this.addNodeToActiveList(node)
}
},
null,
true,
0,
0
)
this.emitNodeActiveEvent()
}
// 回退
back(step) {
this.backForward('back', step)
}
// 前进
forward(step) {
this.backForward('forward', step)
}
// 前进回退
backForward(type, step) {
this.mindMap.execCommand('CLEAR_ACTIVE_NODE')
const data = this.mindMap.command[type](step)
if (data) {
this.renderTree = data
this.mindMap.render()
}
}
// 插入同级节点
insertNode(
openEdit = true,
appointNodes = [],
appointData = null,
appointChildren = []
) {
appointNodes = formatDataToArray(appointNodes)
if (this.activeNodeList.length <= 0 && appointNodes.length <= 0) {
return
}
this.textEdit.hideEditTextBox()
const {
defaultInsertSecondLevelNodeText,
defaultInsertBelowSecondLevelNodeText
} = this.mindMap.opt
const list = appointNodes.length > 0 ? appointNodes : this.activeNodeList
const handleMultiNodes = list.length > 1
const isRichText = !!this.mindMap.richText
const params = {
expand: true,
richText: isRichText,
resetRichText: isRichText,
isActive: handleMultiNodes || !openEdit // 如果同时对多个节点插入子节点,那么需要把新增的节点设为激活状态。如果不进入编辑状态,那么也需要手动设为激活状态
}
// 动态指定的子节点数据也需要添加相关属性
appointChildren = addDataToAppointNodes(appointChildren, {
...params
})
list.forEach(node => {
if (node.isGeneralization || node.isRoot) {
return
}
const parent = node.parent
const isOneLayer = node.layerIndex === 1
// 新插入节点的默认文本
const text = isOneLayer
? defaultInsertSecondLevelNodeText
: defaultInsertBelowSecondLevelNodeText
// 计算插入位置
const index = getNodeDataIndex(node)
const newNodeData = {
inserting: handleMultiNodes ? false : openEdit, // 如果同时对多个节点插入子节点,那么无需进入编辑模式,
data: {
text: text,
...params,
uid: createUid(),
...(appointData || {})
},
children: [...createUidForAppointNodes(appointChildren, true)]
}
parent.nodeData.children.splice(index + 1, 0, newNodeData)
})
// 如果同时对多个节点插入子节点,需要清除原来激活的节点
if (handleMultiNodes || !openEdit) {
this.clearActiveNodeList()
}
this.mindMap.render()
}
// 插入多个同级节点
insertMultiNode(appointNodes, nodeList) {
if (!nodeList || nodeList.length <= 0) return
appointNodes = formatDataToArray(appointNodes)
if (this.activeNodeList.length <= 0 && appointNodes.length <= 0) {
return
}
this.textEdit.hideEditTextBox()
const list = appointNodes.length > 0 ? appointNodes : this.activeNodeList
const isRichText = !!this.mindMap.richText
const params = {
expand: true,
richText: isRichText,
resetRichText: isRichText,
isActive: true
}
nodeList = addDataToAppointNodes(nodeList, params)
list.forEach(node => {
if (node.isGeneralization || node.isRoot) {
return
}
const parent = node.parent
// 计算插入位置
const index = getNodeDataIndex(node)
const newNodeList = createUidForAppointNodes(
simpleDeepClone(nodeList),
true
)
parent.nodeData.children.splice(index + 1, 0, ...newNodeList)
})
this.clearActiveNodeList()
this.mindMap.render()
}
// 插入子节点
insertChildNode(
openEdit = true,
appointNodes = [],
appointData = null,
appointChildren = []
) {
appointNodes = formatDataToArray(appointNodes)
if (this.activeNodeList.length <= 0 && appointNodes.length <= 0) {
return
}
this.textEdit.hideEditTextBox()
const {
defaultInsertSecondLevelNodeText,
defaultInsertBelowSecondLevelNodeText
} = this.mindMap.opt
const list = appointNodes.length > 0 ? appointNodes : this.activeNodeList
const handleMultiNodes = list.length > 1
const isRichText = !!this.mindMap.richText
const params = {
expand: true,
richText: isRichText,
resetRichText: isRichText,
isActive: handleMultiNodes || !openEdit // 如果同时对多个节点插入子节点,那么需要把新增的节点设为激活状态。如果不进入编辑状态,那么也需要手动设为激活状态
}
// 动态指定的子节点数据也需要添加相关属性
appointChildren = addDataToAppointNodes(appointChildren, {
...params
})
list.forEach(node => {
if (node.isGeneralization) {
return
}
if (!node.nodeData.children) {
node.nodeData.children = []
}
const text = node.isRoot
? defaultInsertSecondLevelNodeText
: defaultInsertBelowSecondLevelNodeText
const newNode = {
inserting: handleMultiNodes ? false : openEdit, // 如果同时对多个节点插入子节点,那么无需进入编辑模式
data: {
text: text,
uid: createUid(),
...params,
...(appointData || {})
},
children: [...createUidForAppointNodes(appointChildren, true)]
}
node.nodeData.children.push(newNode)
// 插入子节点时自动展开子节点
node.setData({
expand: true
})
})
// 如果同时对多个节点插入子节点,需要清除原来激活的节点
if (handleMultiNodes || !openEdit) {
this.clearActiveNodeList()
}
this.mindMap.render()
}
// 插入多个子节点
insertMultiChildNode(appointNodes, childList) {
if (!childList || childList.length <= 0) return
appointNodes = formatDataToArray(appointNodes)
if (this.activeNodeList.length <= 0 && appointNodes.length <= 0) {
return
}
this.textEdit.hideEditTextBox()
const list = appointNodes.length > 0 ? appointNodes : this.activeNodeList
const isRichText = !!this.mindMap.richText
const params = {
expand: true,
richText: isRichText,
resetRichText: isRichText,
isActive: true
}
childList = addDataToAppointNodes(childList, params)
list.forEach(node => {
if (node.isGeneralization) {
return
}
if (!node.nodeData.children) {
node.nodeData.children = []
}
childList = createUidForAppointNodes(childList, true)
node.nodeData.children.push(...childList)
// 插入子节点时自动展开子节点
node.setData({
expand: true
})
})
this.clearActiveNodeList()
this.mindMap.render()
}
// 插入父节点
insertParentNode(openEdit = true, appointNodes, appointData) {
appointNodes = formatDataToArray(appointNodes)
if (this.activeNodeList.length <= 0 && appointNodes.length <= 0) {
return
}
this.textEdit.hideEditTextBox()
const {
defaultInsertSecondLevelNodeText,
defaultInsertBelowSecondLevelNodeText
} = this.mindMap.opt
const list = appointNodes.length > 0 ? appointNodes : this.activeNodeList
const handleMultiNodes = list.length > 1
const isRichText = !!this.mindMap.richText
const params = {
expand: true,
richText: isRichText,
resetRichText: isRichText,
isActive: handleMultiNodes || !openEdit // 如果同时对多个节点插入子节点,那么需要把新增的节点设为激活状态。如果不进入编辑状态,那么也需要手动设为激活状态
}
list.forEach(node => {
if (node.isGeneralization || node.isRoot) {
return
}
const text =
node.layerIndex === 1
? defaultInsertSecondLevelNodeText
: defaultInsertBelowSecondLevelNodeText
const newNode = {
inserting: handleMultiNodes ? false : openEdit, // 如果同时对多个节点插入子节点,那么无需进入编辑模式
data: {
text: text,
uid: createUid(),
...params,
...(appointData || {})
},
children: [node.nodeData]
}
const parent = node.parent
// 获取当前节点所在位置
const index = getNodeDataIndex(node)
parent.nodeData.children.splice(index, 1, newNode)
})
// 如果同时对多个节点插入子节点,需要清除原来激活的节点
if (handleMultiNodes || !openEdit) {
this.clearActiveNodeList()
}
this.mindMap.render()
}
// 上移节点,多个节点只会操作第一个节点
upNode() {
if (this.activeNodeList.length <= 0) {
return
}
let node = this.activeNodeList[0]
if (node.isRoot) {
return
}
let parent = node.parent
let childList = parent.children
let index = getNodeIndexInNodeList(node, childList)
if (index === -1 || index === 0) {
return
}
let insertIndex = index - 1
// 节点实例
childList.splice(index, 1)
childList.splice(insertIndex, 0, node)
// 节点数据
parent.nodeData.children.splice(index, 1)
parent.nodeData.children.splice(insertIndex, 0, node.nodeData)
this.mindMap.render()
}
// 下移节点,多个节点只会操作第一个节点
downNode() {
if (this.activeNodeList.length <= 0) {
return
}
let node = this.activeNodeList[0]
if (node.isRoot) {
return
}
let parent = node.parent
let childList = parent.children
let index = getNodeIndexInNodeList(node, childList)
if (index === -1 || index === childList.length - 1) {
return
}
let insertIndex = index + 1
// 节点实例
childList.splice(index, 1)
childList.splice(insertIndex, 0, node)
// 节点数据
parent.nodeData.children.splice(index, 1)
parent.nodeData.children.splice(insertIndex, 0, node.nodeData)
this.mindMap.render()
}
// 复制节点
copy() {
this.beingCopyData = this.copyNode()
setDataToClipboard({
simpleMindMap: true,
data: this.beingCopyData
})
}
// 剪切节点
cut() {
this.mindMap.execCommand('CUT_NODE', copyData => {
this.beingCopyData = copyData
setDataToClipboard({
simpleMindMap: true,
data: copyData
})
})
}
// 粘贴节点
paste() {
if (this.beingCopyData) {
this.mindMap.execCommand('PASTE_NODE', this.beingCopyData)
}
}
// 粘贴事件
async onPaste() {
const { errorHandler, handleIsSplitByWrapOnPasteCreateNewNode } =
this.mindMap.opt
// 读取剪贴板的文字和图片
let text = null
let img = null
try {
const res = await getDataFromClipboard()
text = res.text
img = res.img
} catch (error) {
errorHandler(ERROR_TYPES.READ_CLIPBOARD_ERROR, error)
}
// 检查剪切板数据是否有变化
// 通过图片大小来判断图片是否发生变化,可能是不准确的,但是目前没有其他好方法
const imgSize = img ? img.size : 0
if (this.beingPasteText !== text || this.beingPasteImgSize !== imgSize) {
this.currentBeingPasteType = CONSTANTS.PASTE_TYPE.CLIP_BOARD
this.beingPasteText = text
this.beingPasteImgSize = imgSize
}
// 检查要粘贴的节点数据是否有变化,节点优先级高于剪切板
if (this.lastBeingCopyData !== this.beingCopyData) {
this.lastBeingCopyData = this.beingCopyData
this.currentBeingPasteType = CONSTANTS.PASTE_TYPE.CANVAS
}
// 粘贴剪切板的数据
if (this.currentBeingPasteType === CONSTANTS.PASTE_TYPE.CLIP_BOARD) {
// 存在文本,则创建子节点
if (text) {
// 判断粘贴的是否是simple-mind-map的数据
let smmData = null
let useDefault = true
// 用户自定义处理
if (this.mindMap.opt.customHandleClipboardText) {
try {
const res = await this.mindMap.opt.customHandleClipboardText(text)
if (!isUndef(res)) {
useDefault = false
if (typeof res === 'object' && res.simpleMindMap) {
smmData = res.data
} else {
text = String(res)
}
}
} catch (error) {
errorHandler(ERROR_TYPES.CUSTOM_HANDLE_CLIPBOARD_TEXT_ERROR, error)
}
}
// 默认处理
if (useDefault) {
try {
const parsedData = JSON.parse(text)
if (parsedData && parsedData.simpleMindMap) {
smmData = parsedData.data
}
} catch (error) {
errorHandler(ERROR_TYPES.PARSE_PASTE_DATA_ERROR, error)
}
}
if (smmData) {
this.mindMap.execCommand(
'INSERT_MULTI_CHILD_NODE',
[],
Array.isArray(smmData) ? smmData : [smmData]
)
} else {
text = htmlEscape(text)
const textArr = text
.split(new RegExp('\r?\n|(?<!\n)\r', 'g'))
.filter(item => {
return !!item
})
// 判断是否需要根据换行自动分割节点
if (textArr.length > 1 && handleIsSplitByWrapOnPasteCreateNewNode) {
handleIsSplitByWrapOnPasteCreateNewNode()
.then(() => {
this.mindMap.execCommand(
'INSERT_MULTI_CHILD_NODE',
[],
textArr.map(item => {
return {
data: {
text: item
},
children: []
}
})
)
})
.catch(() => {
this.mindMap.execCommand('INSERT_CHILD_NODE', false, [], {
text
})
})
} else {
this.mindMap.execCommand('INSERT_CHILD_NODE', false, [], {
text
})
}
}
}
// 存在图片,则添加到当前激活节点
if (img) {
try {
let imgData = await loadImage(img)
if (this.activeNodeList.length > 0) {
this.activeNodeList.forEach(node => {
this.mindMap.execCommand('SET_NODE_IMAGE', node, {
url: imgData.url,
title: '',
width: imgData.size.width,
height: imgData.size.height
})
})
}
} catch (error) {
errorHandler(ERROR_TYPES.LOAD_CLIPBOARD_IMAGE_ERROR, error)
}
}
} else {
// 粘贴节点数据
this.paste()
}
}
// 将节点移动到另一个节点的前面
insertBefore(node, exist) {
this.insertTo(node, exist, 'before')
}
// 将节点移动到另一个节点的后面
insertAfter(node, exist) {
this.insertTo(node, exist, 'after')
}
// 将节点移动到另一个节点的前面或后面
insertTo(node, exist, dir = 'before') {
let nodeList = formatDataToArray(node)
nodeList = nodeList.filter(item => {
return !item.isRoot
})
if (dir === 'after') {
nodeList.reverse()
}
nodeList.forEach(item => {
this.checkNodeLayerChange(item, exist)
// 移动节点
let nodeParent = item.parent
let nodeBorthers = nodeParent.children
let nodeIndex = getNodeIndexInNodeList(item, nodeBorthers)
if (nodeIndex === -1) {
return
}
nodeBorthers.splice(nodeIndex, 1)
nodeParent.nodeData.children.splice(nodeIndex, 1)
// 目标节点
let existParent = exist.parent
let existBorthers = existParent.children
let existIndex = getNodeIndexInNodeList(exist, existBorthers)
if (existIndex === -1) {
return
}
if (dir === 'after') {
existIndex++
}
existBorthers.splice(existIndex, 0, item)
existParent.nodeData.children.splice(existIndex, 0, item.nodeData)
})
this.mindMap.render()
}
// 如果是富文本模式,那么某些层级变化需要更新样式
checkNodeLayerChange(node, toNode) {
if (this.mindMap.richText) {
let nodeLayerChanged =
(node.layerIndex === 1 && toNode.layerIndex !== 1) ||
(node.layerIndex !== 1 && toNode.layerIndex === 1)
if (nodeLayerChanged) {
node.setData({
resetRichText: true
})
}
}
}
// 移除节点
removeNode(appointNodes = []) {
appointNodes = formatDataToArray(appointNodes)
if (this.activeNodeList.length <= 0 && appointNodes.length <= 0) {
return
}
// 删除节点后需要激活的节点
let needActiveNode = null
let isAppointNodes = appointNodes.length > 0
let list = isAppointNodes ? appointNodes : this.activeNodeList
let root = list.find(node => {
return node.isRoot
})
if (root) {
this.clearActiveNodeList()
root.children = []
root.nodeData.children = []
} else {
// 如果只选中了一个节点,删除后激活其兄弟节点或者父节点
needActiveNode = this.getNextActiveNode()
for (let i = 0; i < list.length; i++) {
let node = list[i]
if (isAppointNodes) list.splice(i, 1)
if (node.isGeneralization) {
this.deleteNodeGeneralization(node)
this.removeNodeFromActiveList(node)
i--
} else {
this.removeNodeFromActiveList(node)
removeFromParentNodeData(node)
i--
}
}
}
this.activeNodeList = []
// 激活被删除节点的兄弟节点或父节点
if (needActiveNode) {
this.addNodeToActiveList(needActiveNode)
}
this.emitNodeActiveEvent()
this.mindMap.render()
}
// 删除概要节点,即从所属节点里删除该概要
deleteNodeGeneralization(node) {
const targetNode = node.generalizationBelongNode
const index = targetNode.getGeneralizationNodeIndex(node)
let generalization = targetNode.getData('generalization')
if (Array.isArray(generalization)) {
generalization.splice(index, 1)
} else {
generalization = null
}
// 删除概要节点
this.mindMap.execCommand('SET_NODE_DATA', targetNode, {
generalization
})
}
// 仅删除当前节点
removeCurrentNode(appointNodes = []) {
appointNodes = formatDataToArray(appointNodes)
if (this.activeNodeList.length <= 0 && appointNodes.length <= 0) {
return
}
// 删除节点后需要激活的节点,如果只选中了一个节点,删除后激活其兄弟节点或者父节点
let needActiveNode = this.getNextActiveNode()
let isAppointNodes = appointNodes.length > 0
let list = isAppointNodes ? appointNodes : this.activeNodeList
list = list.filter(node => {
return !node.isRoot
})
for (let i = 0; i < list.length; i++) {
let node = list[i]
if (node.isGeneralization) {
// 删除概要节点
this.deleteNodeGeneralization(node)
} else {
const parent = node.parent
const index = getNodeDataIndex(node)
parent.nodeData.children.splice(
index,
1,
...(node.nodeData.children || [])
)
}
}
this.activeNodeList = []
// 激活被删除节点的兄弟节点或父节点
if (needActiveNode) {
this.addNodeToActiveList(needActiveNode)
}
this.emitNodeActiveEvent()
this.mindMap.render()
}
// 计算下一个可激活的节点
getNextActiveNode() {
let needActiveNode = null
if (
this.activeNodeList.length === 1 &&
!this.activeNodeList[0].isGeneralization &&
this.mindMap.opt.deleteNodeActive
) {
const node = this.activeNodeList[0]
const broList = node.parent.children
const nodeIndex = getNodeIndexInNodeList(node, broList)
// 如果后面有兄弟节点
if (nodeIndex < broList.length - 1) {
needActiveNode = broList[nodeIndex + 1]
} else {
// 如果前面有兄弟节点
if (nodeIndex > 0) {
needActiveNode = broList[nodeIndex - 1]
} else {
// 没有兄弟节点
needActiveNode = node.parent
}
}
}
return needActiveNode
}
// 复制节点
copyNode() {
if (this.activeNodeList.length <= 0) {
return
}
const nodeList = getTopAncestorsFomNodeList(this.activeNodeList)
return nodeList.map(node => {
return copyNodeTree({}, node, true)
})
}
// 剪切节点
cutNode(callback) {
if (this.activeNodeList.length <= 0) {
return
}
// 找出激活节点中的顶层节点列表,并过滤掉根节点
const nodeList = getTopAncestorsFomNodeList(this.activeNodeList).filter(
node => {
return !node.isRoot
}
)
// 复制数据
const copyData = nodeList.map(node => {
return copyNodeTree({}, node, true)
})
// 从父节点的数据中移除
nodeList.forEach(node => {
removeFromParentNodeData(node)
})
// 清空激活节点列表
this.clearActiveNodeList()
this.mindMap.render()
if (callback && typeof callback === 'function') {
callback(copyData)
}
}
// 移动节点作为另一个节点的子节点
moveNodeTo(node, toNode) {
let nodeList = formatDataToArray(node)
nodeList = nodeList.filter(item => {
return !item.isRoot
})
nodeList.forEach(item => {
this.checkNodeLayerChange(item, toNode)
this.removeNodeFromActiveList(item)
removeFromParentNodeData(item)
toNode.nodeData.children.push(item.nodeData)
})
this.emitNodeActiveEvent()
this.mindMap.render()
}
// 粘贴节点到节点
pasteNode(data) {
data = formatDataToArray(data)
if (this.activeNodeList.length <= 0 || data.length <= 0) {
return
}
this.activeNodeList.forEach(node => {
node.nodeData.children.push(
...data.map(item => {
const newData = simpleDeepClone(item)
createUidForAppointNodes([newData], true)
return newData
})
)
})
this.mindMap.render()
}
// 设置节点样式
setNodeStyle(node, prop, value) {
let data = {
[prop]: value
}
// 如果开启了富文本,则需要应用到富文本上
if (this.mindMap.richText) {
this.mindMap.richText.setNotActiveNodeStyle(node, {
[prop]: value
})
}
this.setNodeDataRender(node, data)
// 更新了连线的样式
if (lineStyleProps.includes(prop)) {
;(node.parent || node).renderLine(true)
}
}
// 设置节点多个样式
setNodeStyles(node, style) {
let data = { ...style }
// 如果开启了富文本,则需要应用到富文本上
if (this.mindMap.richText) {
this.mindMap.richText.setNotActiveNodeStyle(node, style)
}
this.setNodeDataRender(node, data)
// 更新了连线的样式
let props = Object.keys(style)
let hasLineStyleProps = false
props.forEach(key => {
if (lineStyleProps.includes(key)) {
hasLineStyleProps = true
}
})
if (hasLineStyleProps) {
;(node.parent || node).renderLine(true)
}
}
// 设置节点是否激活
setNodeActive(node, active) {
this.mindMap.execCommand('SET_NODE_DATA', node, {
isActive: active
})
node.updateNodeByActive(active)
}
// 设置节点是否展开
setNodeExpand(node, expand) {
this.mindMap.execCommand('SET_NODE_DATA', node, {
expand
})
this.mindMap.render()
}
// 展开所有
expandAllNode() {
walk(
this.renderTree,
null,
node => {
if (!node.data.expand) {
node.data.expand = true
}
},
null,
true,
0,
0
)
this.mindMap.render()
}
// 收起所有
unexpandAllNode() {
walk(
this.renderTree,
null,
(node, parent, isRoot) => {
if (!isRoot && node.children && node.children.length > 0) {
node.data.expand = false
}
},
null,
true,
0,
0
)
this.mindMap.render(() => {
this.mindMap.view.reset()
})
}
// 展开到指定层级
expandToLevel(level) {
walk(
this.renderTree,
null,
(node, parent, isRoot, layerIndex) => {
const expand = layerIndex < level
if (expand) {
node.data.expand = true
} else if (!isRoot && node.children && node.children.length > 0) {
node.data.expand = false
}
},
null,
true,
0,
0
)
this.mindMap.render()
}
// 切换激活节点的展开状态
toggleActiveExpand() {
this.activeNodeList.forEach(node => {
if (node.nodeData.children.length <= 0) {
return
}
this.toggleNodeExpand(node)
})
}
// 切换节点展开状态
toggleNodeExpand(node) {
this.mindMap.execCommand('SET_NODE_EXPAND', node, !node.getData('expand'))
}
// 设置节点文本
setNodeText(node, text, richText, resetRichText) {
this.setNodeDataRender(node, {
text,
richText,
resetRichText
})
}
// 设置节点图片
setNodeImage(node, data) {
const {
url,
title,
width,
height,
custom = false
} = data || { url: '', title: '', width: 0, height: 0, custom: false }
this.setNodeDataRender(node, {
image: url,
imageTitle: title || '',
imageSize: {
width,
height,
custom
}
})
}
// 设置节点图标
setNodeIcon(node, icons) {
this.setNodeDataRender(node, {
icon: icons
})
}
// 设置节点超链接
setNodeHyperlink(node, link, title = '') {
this.setNodeDataRender(node, {
hyperlink: link,
hyperlinkTitle: title
})
}
// 设置节点备注
setNodeNote(node, note) {
this.setNodeDataRender(node, {
note
})
}
// 设置节点标签
setNodeTag(node, tag) {
this.setNodeDataRender(node, {
tag
})
}
// 设置节点公式
insertFormula(formula, appointNodes = []) {
// 只在富文本模式下可用并且需要注册Formula插件
if (!this.mindMap.richText || !this.mindMap.formula) return
appointNodes = formatDataToArray(appointNodes)
const list = appointNodes.length > 0 ? appointNodes : this.activeNodeList
list.forEach(node => {
this.mindMap.formula.insertFormulaToNode(node, formula)
})
}
// 添加节点概要
addGeneralization(data) {
if (this.activeNodeList.length <= 0) {
return
}
const nodeList = this.activeNodeList.filter(node => {
return (
!node.isRoot && !node.isGeneralization && !node.checkHasSelfGeneralization()
)
})
const list = parseAddGeneralizationNodeList(nodeList)
list.forEach(item => {
const newData = {
...(data || {
text: this.mindMap.opt.defaultGeneralizationText
}),
range: item.range || null
}
let generalization = item.node.getData('generalization')
if (generalization) {
if (Array.isArray(generalization)) {
generalization.push(newData)
} else {
generalization = [generalization, newData]
}
} else {
generalization = [newData]
}
this.mindMap.execCommand('SET_NODE_DATA', item.node, {
generalization
})
// 插入子节点时自动展开子节点
item.node.setData({
expand: true
})
})
this.mindMap.render(() => {
// 修复祖先节点存在概要时位置未更新的问题
// 修复同时给存在上下级关系的节点添加概要时重叠的问题
this.mindMap.render()
})
}
// 删除节点概要
removeGeneralization() {
if (this.activeNodeList.length <= 0) {
return
}
this.activeNodeList.forEach(node => {
if (!node.checkHasGeneralization()) {
return
}
this.mindMap.execCommand('SET_NODE_DATA', node, {
generalization: null
})
})
this.mindMap.render()
}
// 设置节点自定义位置
setNodeCustomPosition(node, left = undefined, top = undefined) {
let nodeList = [node] || this.activeNodeList
nodeList.forEach(item => {
this.mindMap.execCommand('SET_NODE_DATA', item, {
customLeft: left,
customTop: top
})
})
}
// 一键整理布局,即去除自定义位置
resetLayout() {
walk(
this.root,
null,
node => {
node.customLeft = undefined
node.customTop = undefined
this.mindMap.execCommand('SET_NODE_DATA', node, {
customLeft: undefined,
customTop: undefined
})
this.mindMap.render()
},
null,
true,
0,
0
)
}
// 设置节点形状
setNodeShape(node, shape) {
if (!shape || !shapeList.includes(shape)) {
return
}
let nodeList = [node] || this.activeNodeList
nodeList.forEach(item => {
this.setNodeStyle(item, 'shape', shape)
})
}
// 定位到指定节点
goTargetNode(node, callback = () => {}) {
let uid = typeof node === 'string' ? node : node.getData('uid')
if (!uid) return
this.expandToNodeUid(uid, () => {
let targetNode = this.findNodeByUid(uid)
if (targetNode) {
targetNode.active()
this.moveNodeToCenter(targetNode)
callback()
}
})
}
// 更新节点数据
setNodeData(node, data) {
Object.keys(data).forEach(key => {
node.nodeData.data[key] = data[key]
})
}
// 设置节点数据,并判断是否渲染
setNodeDataRender(node, data, notRender = false) {
this.mindMap.execCommand('SET_NODE_DATA', node, data)
let changed = node.reRender()
if (changed) {
if (!notRender) this.mindMap.render()
} else {
this.mindMap.emit('node_tree_render_end')
}
}
// 移动节点到画布中心
moveNodeToCenter(node) {
let halfWidth = this.mindMap.width / 2
let halfHeight = this.mindMap.height / 2
let { left, top, width, height } = node
let nodeCenterX = left + width / 2
let nodeCenterY = top + height / 2
let { state } = this.mindMap.view.getTransformData()
let targetX = halfWidth - state.x
let targetY = halfHeight - state.y
let offsetX = targetX - nodeCenterX
let offsetY = targetY - nodeCenterY
this.mindMap.view.translateX(offsetX)
this.mindMap.view.translateY(offsetY)
this.mindMap.view.setScale(1)
}
// 回到中心主题,即设置根节点到画布中心
setRootNodeCenter() {
this.moveNodeToCenter(this.root)
}
// 展开到指定uid的节点
expandToNodeUid(uid, callback = () => {}) {
let parentsList = []
const cache = {}
bfsWalk(this.renderTree, (node, parent) => {
if (node.data.uid === uid) {
parentsList = parent ? [...cache[parent.data.uid], parent] : []
return 'stop'
} else {
cache[node.data.uid] = parent ? [...cache[parent.data.uid], parent] : []
}
})
let needRender = false
parentsList.forEach(node => {
if (!node.data.expand) {
needRender = true
node.data.expand = true
}
})
if (needRender) {
this.mindMap.render(callback)
} else {
callback()
}
}
// 根据uid找到对应的节点实例
findNodeByUid(uid) {
let res = null
walk(this.root, null, node => {
if (node.getData('uid') === uid) {
res = node
return true
}
})
return res
}
// 派发节点激活改变事件
emitNodeActiveEvent() {
this.mindMap.emit('node_active', null, [...this.activeNodeList])
}
}
export default Render