Merge pull request #8 from wangeditor-team/feature-text-API
getJSON 和处理 tab
This commit is contained in:
王福朋
GitHub
commit
6923608c8c
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@ -106,3 +106,5 @@ dist
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examples/test-page/
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.DS_Store
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ISSUE1.md
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@ -0,0 +1,30 @@
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>wangEditor example</title>
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<style>
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</style>
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</head>
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<body>
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<p>
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wangEditor getJSON
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</p>
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<div id="div1">
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<p>我是一行文字</p>
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<p>我是一行<b>这里加粗</b>文字</p>
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<p>我是一行<a href="123" target="_blank">链接</a>文字</p>
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<p><img src="https://www.tslang.cn/assets/images/fork_me_ribbon.svg" style="width: 200px;"/></p>
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</div>
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<script src="../dist/wangEditor.js"></script>
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<script>
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const E = window.wangEditor
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const editor = new E('#div1')
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editor.create()
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console.log( editor.txt.getJSON() )
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</script>
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</body>
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</html>
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@ -6,6 +6,7 @@
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import Text from '../index'
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import enterToCreateP from './enter-to-create-p'
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import deleteToKeepP from './del-to-keep-p'
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import tabToSpan from './tab-to-space'
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/**
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* 初始化 text 事件钩子函数
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@ -20,6 +21,9 @@ function initTextHooks(text: Text): void {
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// 删除时，保留 <p><br></p>
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deleteToKeepP(editor, eventHooks.deleteUpEvents, eventHooks.deleteDownEvents)
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// tab 转换为空格
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tabToSpan(editor, eventHooks.tabDownEvents)
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}
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export default initTextHooks
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@ -0,0 +1,40 @@
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/**
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* @description 编辑区域 tab 的特殊处理
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* @author wangfupeng
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*/
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import Editor from '../../editor/index'
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/**
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* 编辑区域 tab 的特殊处理，转换为空格
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* @param editor 编辑器实例
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* @param tabDownEvents tab down 事件钩子
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*/
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function tabHandler(editor: Editor, tabDownEvents: Function[]) {
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// 定义函数
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function fn() {
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if (!editor.cmd.queryCommandSupported('insertHTML')) {
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// 必须原生支持 insertHTML 命令
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return
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}
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const $selectionElem = editor.selection.getSelectionContainerElem()
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if (!$selectionElem) {
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return
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}
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const $parentElem = $selectionElem.parent()
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const selectionNodeName = $selectionElem.getNodeName()
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const parentNodeName = $parentElem.getNodeName()
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if (selectionNodeName === 'CODE' && parentNodeName === 'PRE') {
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// <pre><code> 里面
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editor.cmd.do('insertHTML', ' ')
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} else {
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// 普通文字
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editor.cmd.do('insertHTML', ' ')
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}
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}
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// 保留函数
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tabDownEvents.push(fn)
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}
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export default tabHandler
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@ -0,0 +1,68 @@
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/**
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* @description 获取子元素的 JSON 格式数据
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* @author wangfupeng
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*/
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import { replaceHtmlSymbol } from '../utils/util'
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import $, { DomElement } from '../utils/dom-core'
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type AttrType = {
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name: string
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value: string
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}
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export type NodeType = {
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tag: string
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attrs: AttrType[]
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children: NodeListType
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}
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export type NodeListType = Array<string | NodeType>
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/**
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* 获取子元素的 JSON 格式数据
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* @param $elem DOM 节点
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*/
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function getChildrenJSON($elem: DomElement): NodeListType {
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const result: NodeListType = [] // 存储结果
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const $children = $elem.childNodes() || [] // 注意 childNodes() 可以获取文本节点
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$children.forEach((curElem: HTMLElement) => {
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let elemResult
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const nodeType = curElem.nodeType
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// 文本节点
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if (nodeType === 3) {
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elemResult = curElem.textContent || ''
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elemResult = replaceHtmlSymbol(elemResult)
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}
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// 普通 DOM 节点
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if (nodeType === 1) {
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elemResult = {}
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elemResult = elemResult as NodeType
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// tag
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elemResult.tag = curElem.nodeName.toLowerCase()
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// attr
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const attrData = []
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const attrList = curElem.attributes || []
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const attrListLength = attrList.length || 0
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for (let i = 0; i < attrListLength; i++) {
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const attr = attrList[i]
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attrData.push({
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name: attr.name,
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value: attr.value,
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})
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}
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elemResult.attrs = attrData
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// children（递归）
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elemResult.children = getChildrenJSON($(curElem))
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}
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if (elemResult) {
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result.push(elemResult)
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}
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})
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return result
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}
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export default getChildrenJSON
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@ -7,11 +7,14 @@ import $ from '../utils/dom-core'
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import Editor from '../editor/index'
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import initEventHooks from './event-hooks/index'
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import { UA } from '../utils/util'
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import getChildrenJSON, { NodeListType } from './getChildrenJSON'
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// 各个事件钩子函数
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type TextEventHooks = {
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dropEvents: Function[]
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keyupEvents: Function[]
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tabUpEvents: Function[] // tab 键（keyCode === ）Up 时
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tabDownEvents: Function[] // tab 键（keyCode === 9）Down 时
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enterUpEvents: Function[] // enter 键（keyCode === 13）up 时
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deleteUpEvents: Function[] // 删除键（keyCode === 8）up 时
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deleteDownEvents: Function[] // 删除键（keyCode === 8）down 时
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@ -28,6 +31,8 @@ class Text {
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this.eventHooks = {
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dropEvents: [],
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keyupEvents: [],
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tabUpEvents: [],
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tabDownEvents: [],
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enterUpEvents: [],
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deleteUpEvents: [],
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deleteDownEvents: [],
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@ -42,11 +47,11 @@ class Text {
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// 实时保存选取范围
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this._saveRange()
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// 绑定事件
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this._bindEventHooks()
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// 初始化 text 事件钩子函数
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initEventHooks(this)
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// 绑定事件
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this._bindEvent()
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}
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/**
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@ -78,7 +83,14 @@ class Text {
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editor.initSelection()
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}
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// 获取 JSON
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/**
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* 获取 json 格式的数据
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*/
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public getJSON(): NodeListType {
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const editor = this.editor
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const $textElem = editor.$textElem
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return getChildrenJSON($textElem)
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}
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/**
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* 获取/设置 字符串内容
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@ -146,51 +158,57 @@ class Text {
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/**
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* 绑定事件，事件会触发钩子函数
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*/
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private _bindEvent(): void {
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private _bindEventHooks(): void {
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const $textElem = this.editor.$textElem
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const eventHooks = this.eventHooks
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// enter 键 up 时的 hooks
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const enterUpEvents = eventHooks.enterUpEvents
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$textElem.on('keyup', (e: KeyboardEvent) => {
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if (e.keyCode !== 13) {
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// 不是回车键
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return
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}
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if (e.keyCode !== 13) return
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const enterUpEvents = eventHooks.enterUpEvents
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enterUpEvents.forEach(fn => fn(e))
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})
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// delete 键 up 时 hooks
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const deleteUpEvents = eventHooks.deleteUpEvents
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$textElem.on('keyup', (e: KeyboardEvent) => {
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if (e.keyCode !== 8) {
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// 不是删除键
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return
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}
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if (e.keyCode !== 8) return
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const deleteUpEvents = eventHooks.deleteUpEvents
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deleteUpEvents.forEach(fn => fn(e))
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})
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// delete 键 down 时 hooks
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const deleteDownEvents = eventHooks.deleteDownEvents
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$textElem.on('keydown', (e: KeyboardEvent) => {
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if (e.keyCode !== 8) {
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// 不是删除键
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return
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}
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if (e.keyCode !== 8) return
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const deleteDownEvents = eventHooks.deleteDownEvents
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deleteDownEvents.forEach(fn => fn(e))
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})
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// 粘贴
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const pasteEvents = eventHooks.pasteEvents
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$textElem.on('paste', (e: Event) => {
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if (UA.isIE()) {
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return
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} else {
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// 阻止默认行为，使用 execCommand 的粘贴命令
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e.preventDefault()
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}
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if (UA.isIE()) return // IE 不支持
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// 阻止默认行为，使用 execCommand 的粘贴命令
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e.preventDefault()
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const pasteEvents = eventHooks.pasteEvents
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pasteEvents.forEach(fn => fn(e))
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})
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// tab up
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$textElem.on('keyup', (e: KeyboardEvent) => {
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if (e.keyCode !== 9) return
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e.preventDefault()
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const tabUpEvents = eventHooks.tabUpEvents
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tabUpEvents.forEach(fn => fn(e))
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})
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// tab down
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$textElem.on('keydown', (e: KeyboardEvent) => {
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if (e.keyCode !== 9) return
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e.preventDefault()
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const tabDownEvents = eventHooks.tabDownEvents
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tabDownEvents.forEach(fn => fn(e))
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})
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}
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}
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@ -5,6 +5,7 @@
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import createEditor from '../fns/create-editor'
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import Editor from '../../src/editor'
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import { NodeType } from '../../src/text/getChildrenJSON'
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let editor: Editor
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let TEXT = '这是用于 editor.text API 单元测试的文字'
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@ -32,6 +33,39 @@ test('追加内容', () => {
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expect(html.indexOf(r)).toBeGreaterThan(0)
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})
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test('获取 JSON', () => {
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const html = `<p>我是一行文字</p><p>我是一行<b>这里加粗</b>文字</p><p>我是一行<a href="123" target="_blank">链接</a>文字</p>`
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editor.txt.html(html)
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const result = editor.txt.getJSON()
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expect(Array.isArray(result)).toBe(true) // 是一个数组
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// 第一个 p 标签
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const p0 = result[0] as NodeType
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expect(p0.tag).toBe('p')
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expect(p0.children[0]).toBe('我是一行文字')
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// 第二个 p 标签
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const p1 = result[1] as NodeType
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expect(p1.children.length).toBe(3)
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const b = p1.children[1] as NodeType // b 标签
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expect(b.tag).toBe('b')
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expect(b.children[0]).toBe('这里加粗')
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// 第三个 p 标签
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const p2 = result[2] as NodeType
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const a = p2.children[1] as NodeType // a 标签
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expect(a.attrs.length).toBe(2)
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const attr1 = a.attrs[0] // 属性
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expect(attr1.name).toBe('href')
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expect(attr1.value).toBe('123')
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const attr2 = a.attrs[1]
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expect(attr2.name).toBe('target')
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expect(attr2.value).toBe('_blank')
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})
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// 最后测
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test('清空内容', () => {
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editor.txt.clear()
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