<template>
<view id=”_root” :class=”(selectable? _select : )+ _root ” :style=”containerStyle”>
<slot v-if=”!nodes[0]” />
<node v-else :childs=”nodes” :opts=”[lazyLoad,loadingImg,errorImg,showImgMenu,selectable]” name=”span” />
<web-view ref=”web” src=”/uni_modules/mp-html/static/app-plus/mp-html/local.html” alt=”Html 设置可查看图片类型的逻辑”>
</view>
</template>
<script>
/**
-
mp-html v2.5.0
-
@description 富文本组件
-
@tutorial https://github.com/jin-yufeng/mp-html
-
@property {String} container-style 容器的样式
-
@property {String} content 用于渲染的 html 字符串
-
@property {Boolean} copy-link 是否允许外部链接被点击时自动复制
-
@property {String} domain 主域名，用于拼接链接
-
@property {String} error-img 图片出错时的占位图链接
-
@property {Boolean} lazy-load 是否开启图片懒加载
-
@property {string} loading-img 图片加载过程中的占位图链接
-
@property {Boolean} pause-video 是否在播放一个视频时自动暂停其他视频
-
@property {Boolean} preview-img 是否允许图片被点击时自动预览
-
@property {Boolean} scroll-table 是否给每个表格添加一个滚动层使其能单独横向滚动
-
@property {Boolean | String} selectable 是否开启长按复制
-
@property {Boolean} set-title 是否将 title 标签的内容设置到页面标题
-
@property {Boolean} show-img-menu 是否允许图片被长按时显示菜单
-
@property {Object} tag-style 标签的默认样式
-
@property {Boolean | Number} use-anchor 是否使用锚点链接
-
@event {Function} load dom 结构加载完毕时触发
-
@event {Function} ready 所有图片加载完毕时触发
-
@event {Function} imgtap 图片被点击时触发
-
@event {Function} linktap 链接被点击时触发
-
@event {Function} play 音视频播放时触发
-
@event {Function} error 媒体加载出错时触发
/
// #ifndef APP-PLUS-NVUE
import node from ./node/node
// #endif
import Parser from ./parser
const plugins=[]
// #ifdef APP-PLUS-NVUE
const dom = weex.requireModule( dom )
// #endif
export default {
name: mp-html ,
data () {
return {
nodes: [],
// #ifdef APP-PLUS-NVUE
height: 3
// #endif
}
},
props: {
containerStyle: {
type: String,
default:
},
content: {
type: String,
default:
},
copyLink: {
type: [Boolean, String],
default: true
},
domain: String,
errorImg: {
type: String,
default:
},
lazyLoad: {
type: [Boolean, String],
default: false
},
loadingImg: {
type: String,
default:
},
pauseVideo: {
type: [Boolean, String],
default: true
},
previewImg: {
type: [Boolean, String],
default: true
},
scrollTable: [Boolean, String],
selectable: [Boolean, String],
setTitle: {
type: [Boolean, String],
default: true
},
showImgMenu: {
type: [Boolean, String],
default: true
},
tagStyle: Object,
useAnchor: [Boolean, Number]
},
// #ifdef VUE3
emits: [ load , ready , imgtap , linktap , play , error ],
// #endif
// #ifndef APP-PLUS-NVUE
components: {
node
},
// #endif
watch: {
content (content) {
this.setContent(content)
}
},
created () {
this.plugins = []
for (let i = plugins.length; i–;) {
this.plugins.push(new pluginsi)
}
},
mounted () {
if (this.content && !this.nodes.length) {
this.setContent(this.content)
}
},
beforeDestroy () {
this._hook( onDetached )
},
methods: {
/*- @description 将锚点跳转的范围限定在一个 scroll-view 内
- @param {Object} page scroll-view 所在页面的示例
- @param {String} selector scroll-view 的选择器
- @param {String} scrollTop scroll-view scroll-top 属性绑定的变量名
*/
in (page, selector, scrollTop) {
// #ifndef APP-PLUS-NVUE
if (page && selector && scrollTop) {
this._in = {
page,
selector,
scrollTop
}
}
// #endif
},
/**
- @description 锚点跳转
- @param {String} id 要跳转的锚点 id
- @param {Number} offset 跳转位置的偏移量
- @returns {Promise}
*/
navigateTo (id, offset) {
return new Promise((resolve, reject) => {
if (!this.useAnchor) {
reject(Error( Anchor is disabled ))
return
}
offset = offset || parseInt(this.useAnchor) || 0
// #ifdef APP-PLUS-NVUE
if (!id) {
dom.scrollToElement(this.
refs.web.evalJs( uni.postMessage({data:{action:”getOffset”,offset:(document.getElementById( + id + )||{}).offsetTop}}) )
}
// #endif
// #ifndef APP-PLUS-NVUE
let deep =
// #ifdef MP-WEIXIN || MP-QQ || MP-TOUTIAO
deep = >>>
// #endif
const selector = uni.createSelectorQuery()
// #ifndef MP-ALIPAY
.in(this._in ? this._in.page : this)
// #endif
.select((this._in ? this._in.selector : ._root ) + (id ?${deep}#${id}: )).boundingClientRect()
if (this._in) {
selector.select(this._in.selector).scrollOffset()
.select(this._in.selector).boundingClientRect()
} else {
// 获取 scroll-view 的位置和滚动距离
selector.selectViewport().scrollOffset() // 获取窗口的滚动距离
}
selector.exec(res => {
if (!res[0]) {
reject(Error( Label not found ))
return
}
const scrollTop = res[1].scrollTop + res[0].top – (res[2] ? res[2].top : 0) + offset
if (this._in) {
// scroll-view 跳转
this._in.page[this._in.scrollTop] = scrollTop
} else {
// 页面跳转
uni.pageScrollTo({
scrollTop,
duration: 300
})
}
resolve()
})
// #endif
})
},
/**
- @description 获取文本内容
- @return {String}
*/
getText (nodes) {
let text = ;
(function traversal (nodes) {
for (let i = 0; i < nodes.length; i++) {
const node = nodes[i]
if (node.type === text ) {
text += node.text.replace(/&/g, & )
} else if (node.name === br ) {
text +=
} else {
// 块级标签前后加换行
const isBlock = node.name === p || node.name === div || node.name === tr || node.name === li || (node.name[0] === h && node.name[1] > 0 && node.name[1] < 7 )
if (isBlock && text && text[text.length – 1] !==
) {
text +=
}
// 递归获取子节点的文本
if (node.children) {
traversal(node.children)
}
if (isBlock && text[text.length – 1] !==
) {
text +=
} else if (node.name === td || node.name === th ) {
text +=
}
}
}
})(nodes || this.nodes)
return text
},
/**
- @description 获取内容大小和位置
- @return {Promise}
*/
getRect () {
return new Promise((resolve, reject) => {
uni.createSelectorQuery()
// #ifndef MP-ALIPAY
.in(this)
// #endif
.select( #_root ).boundingClientRect().exec(res => res[0] ? resolve(res[0]) : reject(Error( Root label not found )))
})
},
/**
- @description 暂停播放媒体
*/
pauseMedia () {
for (let i = (this._videos || []).length; i–;) {
this._videos[i].pause()
}
// #ifdef APP-PLUS
const command = for(var e=document.getElementsByTagName(“video”),i=e.length;i–;)e[i].pause()
// #ifndef APP-PLUS-NVUE
let page = this.
scope) page = page.
scope.
refs.web.evalJs(command)
// #endif
// #endif
},
/**
- @description 设置媒体播放速率
- @param {Number} rate 播放速率
*/
setPlaybackRate (rate) {
this.playbackRate = rate
for (let i = (this._videos || []).length; i–;) {
this._videos[i].playbackRate(rate)
}
// #ifdef APP-PLUS
const command = for(var e=document.getElementsByTagName(“video”),i=e.length;i–;)e[i].playbackRate= + rate
// #ifndef APP-PLUS-NVUE
let page = this.scope) page = page.scope.refs.web.evalJs(command)
// #endif
// #endif
},
/**
- @description 设置内容
- @param {String} content html 内容
- @param {Boolean} append 是否在尾部追加
*/
setContent (content, append) {
if (!append || !this.imgList) {
this.imgList = []
}
const nodes = new Parser(this).parse(content)
// #ifdef APP-PLUS-NVUE
if (this._ready) {
this._set(nodes, append)
}
// #endif
this.$set(this, nodes , append ? (this.nodes || []).concat(nodes) : nodes)
// #ifndef APP-PLUS-NVUE
this._videos = []
this.%20this.)
{ this._hook( onLoad ) this.” mathimg=”1″>emit( load )
})if (this.lazyLoad || this.imgList._unloadimgs < this.imgList.length / 2) {
// 设置懒加载，每 350ms 获取高度，不变则认为加载完毕
let height = 0
const callback = rect => {
if (!rect || !rect.height) rect = {}
// 350ms 总高度无变化就触发 ready 事件
if (rect.height === height) {
this.%20%7D%20else%20%7B%20height%20%3D%20rect.height%20setTimeout(()%20%3D%3E%20%7B%20this.getRect().then(callback).catch(callback)%20%7D%2C%20350)%20%7D%20%7D%20this.getRect().then(callback).catch(callback)%20%7D%20else%20%7B%20%2F%2F%20%E6%9C%AA%E8%AE%BE%E7%BD%AE%E6%87%92%E5%8A%A0%E8%BD%BD%EF%BC%8C%E7%AD%89%E5%BE%85%E6%89%80%E6%9C%89%E5%9B%BE%E7%89%87%E5%8A%A0%E8%BD%BD%E5%AE%8C%E6%AF%95%20if%20(!this.imgList._unloadimgs)%20%7B%20this.getRect().then(rect%20%3D%3E%20%7B%20this.)
{ this.getRect().then(callback).catch(callback) }, 350) } } this.getRect().then(callback).catch(callback) } else { // 未设置懒加载，等待所有图片加载完毕 if (!this.imgList._unloadimgs) { this.getRect().then(rect => { this.” mathimg=”1″>emit( ready , rect)
}).catch(() => {
this.$emit( ready , {})
})
}
}
// #endif
},/**
- @description 调用插件钩子函数
*/
_hook (name) {
for (let i = plugins.length; i–;) {
if (this.plugins[i][name]) {
this.plugins[i]name
}
}
},
// #ifdef APP-PLUS-NVUE
/**- @description 设置内容
*/
_set (nodes, append) {
this.$refs.web.evalJs( setContent( + JSON.stringify(nodes).replace(/%22/g, ) + , + JSON.stringify([this.containerStyle.replace(/(?:margin|padding)[^;]+/g, ), this.errorImg, this.loadingImg, this.pauseVideo, this.scrollTable, this.selectable]) + , + append + ) )
},
/**
- @description 接收到 web-view 消息
*/
_onMessage (e) {
const message = e.detail.data[0]
switch (message.action) {
// web-view 初始化完毕
case onJSBridgeReady :
this._ready = true
if (this.nodes) {
this._set(this.nodes)
}
break
// 内容 dom 加载完毕
case onLoad :
this.height = message.height
this._hook( onLoad )
this.%20break%20%2F%2F%20%E6%89%80%E6%9C%89%E5%9B%BE%E7%89%87%E5%8A%A0%E8%BD%BD%E5%AE%8C%E6%AF%95%20case%20 onReady %3A%20this.getRect().then(res%20%3D%3E%20%7B%20this.)
{ this.” mathimg=”1″>emit( ready , res)
}).catch(() => {
this.%20%7D)%20break%20%2F%2F%20%E6%80%BB%E9%AB%98%E5%BA%A6%E5%8F%91%E7%94%9F%E5%8F%98%E5%8C%96%20case%20 onHeightChange %3A%20this.height%20%3D%20message.height%20break%20%2F%2F%20%E5%9B%BE%E7%89%87%E7%82%B9%E5%87%BB%20case%20 onImgTap %3A%20this.)
emit( imgtap , message.attrs)
if (this.previewImg) {
uni.previewImage({
current: parseInt(message.attrs.i),
urls: this.imgList
})
}
break
// 链接点击
case onLinkTap : {
const href = message.attrs.href
this.%20if%20(href)%20%7B%20%2F%2F%20%E9%94%9A%E7%82%B9%E8%B7%B3%E8%BD%AC%20if%20(href%5B0%5D%20%3D%3D%3D%20 %23 )%20%7B%20if%20(this.useAnchor)%20%7B%20dom.scrollToElement(this.)
refs.web, {
offset: message.offset
})
}
} else if (href.includes( :// )) {
// 打开外链
if (this.copyLink) {
plus.runtime.openWeb(href)
}
} else {
uni.navigateTo({
url: href,
fail () {
uni.switchTab({
url: href
})
}
})
}
}
break
}
case onPlay :
this.%20break%20%2F%2F%20%E8%8E%B7%E5%8F%96%E5%88%B0%E9%94%9A%E7%82%B9%E7%9A%84%E5%81%8F%E7%A7%BB%E9%87%8F%20case%20 getOffset %3A%20if%20(typeof%20message.offset%20%3D%3D%3D%20 number )%20%7B%20dom.scrollToElement(this.)
refs.web, {
offset: message.offset + this._navigateTo.offset
})
this._navigateTo.resolve()
} else {
this._navigateTo.reject(Error( Label not found ))
}
break
// 点击
case onClick :
this.%20this.)
emit( click )
break
// 出错
case onError :
this.$emit( error , {
source: message.source,
attrs: message.attrs
})
}
}
// #endif
}
}
</script>
<style>
/* #ifndef APP-PLUS-NVUE /
/ 根节点样式 */
._root {
padding: 1px 0;
overflow-x: auto;
overflow-y: hidden;
-webkit-overflow-scrolling: touch;
}
/* 长按复制 /
._select {
user-select: text;
}
/ #endif */
</style>
// 引用方式
<MpHtml v-if=”dataList.content” :content=”videoContent” ></MpHtml>
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