526 lines
17 KiB
Vue
526 lines
17 KiB
Vue
<template>
|
||
<view id="_root" :class="(selectable?'_select ':'')+'_root'" :style="containerStyle">
|
||
<slot v-if="!nodes[0]" />
|
||
<!-- #ifndef APP-PLUS-NVUE -->
|
||
<node v-else :childs="nodes" :opts="[lazyLoad,loadingImg,errorImg,showImgMenu,selectable]" name="span" />
|
||
<!-- #endif -->
|
||
<!-- #ifdef APP-PLUS-NVUE -->
|
||
<web-view ref="web" src="/static/app-plus/mp-html/local.html" :style="'margin-top:-2px;height:' + height + 'px'" @onPostMessage="_onMessage" />
|
||
<!-- #endif -->
|
||
</view>
|
||
</template>
|
||
|
||
<script>
|
||
/**
|
||
* mp-html v2.5.2
|
||
* @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
|
||
* @event {Function} pause 音视频暂停时触发
|
||
* @event {Function} fullscreenchange 视频全屏状态变化时触发
|
||
*/
|
||
// #ifndef APP-PLUS-NVUE
|
||
import node from './node/node'
|
||
// #endif
|
||
import Parser from './parser'
|
||
const plugins = []
|
||
const html4Entities = {
|
||
nbsp: ' ', iexcl: '¡', cent: '¢', pound: '£', curren: '₣', yen: '¥', brvbar: '§', sect: 'Ş', uml: '¨', copy: '©', ordf: 'ª', laquo: '«', not: '¬', shy: '®', macr: '¯', deg: '°', plusmn: '±', sup2: '²', sup3: '³', acute: '´', micro: 'µ', para: '¶', middot: '·', cedil: '¸', sup1: '¹', ordm: 'º', raquo: '»', frac14: '¼', frac12: '½', frac34: '¾', iquest: '¿', agrave: 'à', aacute: 'á', acirc: 'â', atilde: 'ã', auml: 'ä', aring: 'å', aelig: 'æ', ccedil: 'ç', egrave: 'è', eacute: 'é', ecirc: 'ê', euml: 'ë', igrave: 'ì', iacute: 'í', icirc: 'î', iuml: 'ï', eth: 'ð', ntilde: 'ñ', ograve: 'ò', oacute: 'ó', ocirc: 'ô', otilde: 'õ', ouml: 'ö', times: 'ø', ugrave: 'ù', uacute: 'ú', ucirc: 'û', uuml: 'ü', yacute: 'ý', thorn: 'þ', yuml: 'ÿ', fnof: 'ƒ', alpha: 'α', beta: 'β', gamma: 'γ', delta: 'δ', epsilon: 'ε', zeta: 'ζ', eta: 'η', theta: 'θ', iota: 'ι', kappa: 'κ', lambda: 'λ', mu: 'μ', nu: 'ν', xi: 'ξ', omicron: 'ο', pi: 'π', rho: 'ρ', sigmaf: 'σ', sigma: 'σ', tau: 'τ', upsilon: 'υ', phi: 'φ', chi: 'ψ', omega: 'ω', agrave: 'α', eacute: 'é', oslash: 'ø', icirc: 'î', ucirc: 'û'
|
||
}
|
||
|
||
function decodeEntity(str, amp = true) {
|
||
let i = str.indexOf('&')
|
||
while (i !== -1) {
|
||
const j = str.indexOf(';', i + 3)
|
||
let code
|
||
if (j === -1) break
|
||
if (str[i + 1] === '#') {
|
||
code = parseInt((str[i + 2] === 'x' ? '0' : '') + str.substring(i + 2, j))
|
||
if (!isNaN(code)) {
|
||
str = str.substr(0, i) + String.fromCharCode(code) + str.substr(j + 1)
|
||
}
|
||
} else {
|
||
code = str.substring(i + 1, j)
|
||
if (html4Entities[code] || (code === 'amp' && amp)) {
|
||
str = str.substr(0, i) + (html4Entities[code] || '&') + str.substr(j + 1)
|
||
}
|
||
}
|
||
i = str.indexOf('&', i + 1)
|
||
}
|
||
return str
|
||
}
|
||
// #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 plugins[i](this))
|
||
}
|
||
},
|
||
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.$refs.web, {
|
||
offset
|
||
})
|
||
resolve()
|
||
} else {
|
||
this._navigateTo = {
|
||
resolve,
|
||
reject,
|
||
offset
|
||
}
|
||
this.$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 += decodeEntity(node.text)
|
||
} else if (node.name === 'br') {
|
||
text += '\n'
|
||
} 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] !== '\n') {
|
||
text += '\n'
|
||
}
|
||
// 递归获取子节点的文本
|
||
if (node.children) {
|
||
traversal(node.children)
|
||
}
|
||
if (isBlock && text[text.length - 1] !== '\n') {
|
||
text += '\n'
|
||
} else if (node.name === 'td' || node.name === 'th') {
|
||
text += '\t'
|
||
}
|
||
}
|
||
}
|
||
})(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.$parent
|
||
while (!page.$scope) page = page.$parent
|
||
page.$scope.$getAppWebview().evalJS(command)
|
||
// #endif
|
||
// #ifdef APP-PLUS-NVUE
|
||
this.$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.$parent
|
||
while (!page.$scope) page = page.$parent
|
||
page.$scope.$getAppWebview().evalJS(command)
|
||
// #endif
|
||
// #ifdef APP-PLUS-NVUE
|
||
this.$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.$set(this, 'nodes', append ? (this.nodes || []).concat(nodes) : nodes)
|
||
|
||
// #ifndef APP-PLUS-NVUE
|
||
this._videos = []
|
||
this.$nextTick(() => {
|
||
this._hook('onLoad')
|
||
this.$emit('load')
|
||
})
|
||
|
||
if (this.lazyLoad || this.imgList._unloadimgs < this.imgList.length / 2) {
|
||
// 设置懒加载，每 350ms 获取高度，不变则认为加载完毕
|
||
let height = 0
|
||
const callback = rect => {
|
||
if (!rect || !rect.height) rect = {}
|
||
// 350ms 总高度无变化就触发 ready 事件
|
||
if (rect.height === height) {
|
||
this.$emit('ready', rect)
|
||
} else {
|
||
height = rect.height
|
||
setTimeout(() => {
|
||
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.$emit('ready', rect)
|
||
}).catch(() => {
|
||
this.$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.$refs.web.evalJs('setContent(' + JSON.stringify(nodes).replace(/%22/g, '') + ',' + JSON.stringify([this.containerStyle.replace(/(?:margin|padding)[^;]+/g, ''), this.errorImg, this.loadingImg, this.pauseVideo, this.scrollTable, this.selectable]) + ',' + append + ')')
|
||
},
|
||
|
||
/**
|
||
* @description 接收到 web-view 消息
|
||
*/
|
||
_onMessage (e) {
|
||
const message = e.detail.data[0]
|
||
switch (message.action) {
|
||
// web-view 初始化完毕
|
||
case 'onJSBridgeReady':
|
||
this._ready = true
|
||
if (this.nodes) {
|
||
this._set(this.nodes)
|
||
}
|
||
break
|
||
// 内容 dom 加载完毕
|
||
case 'onLoad':
|
||
this.height = message.height
|
||
this._hook('onLoad')
|
||
this.$emit('load')
|
||
break
|
||
// 所有图片加载完毕
|
||
case 'onReady':
|
||
this.getRect().then(res => {
|
||
this.$emit('ready', res)
|
||
}).catch(() => {
|
||
this.$emit('ready', {})
|
||
})
|
||
break
|
||
// 总高度发生变化
|
||
case 'onHeightChange':
|
||
this.height = message.height
|
||
break
|
||
// 图片点击
|
||
case 'onImgTap':
|
||
this.$emit('imgtap', message.attrs)
|
||
if (this.previewImg) {
|
||
uni.previewImage({
|
||
current: parseInt(message.attrs.i),
|
||
urls: this.imgList
|
||
})
|
||
}
|
||
break
|
||
// 链接点击
|
||
case 'onLinkTap': {
|
||
const href = message.attrs.href
|
||
this.$emit('linktap', message.attrs)
|
||
if (href) {
|
||
// 锚点跳转
|
||
if (href[0] === '#') {
|
||
if (this.useAnchor) {
|
||
dom.scrollToElement(this.$refs.web, {
|
||
offset: message.offset
|
||
})
|
||
}
|
||
} else if (href.includes('://')) {
|
||
// 打开外链
|
||
if (this.copyLink) {
|
||
plus.runtime.openWeb(href)
|
||
}
|
||
} else {
|
||
uni.navigateTo({
|
||
url: href,
|
||
fail () {
|
||
uni.switchTab({
|
||
url: href
|
||
})
|
||
}
|
||
})
|
||
}
|
||
}
|
||
break
|
||
}
|
||
case 'onPlay':
|
||
this.$emit('play')
|
||
break
|
||
// 获取到锚点的偏移量
|
||
case 'getOffset':
|
||
if (typeof message.offset === 'number') {
|
||
dom.scrollToElement(this.$refs.web, {
|
||
offset: message.offset + this._navigateTo.offset
|
||
})
|
||
this._navigateTo.resolve()
|
||
} else {
|
||
this._navigateTo.reject(Error('Label not found'))
|
||
}
|
||
break
|
||
// 点击
|
||
case 'onClick':
|
||
this.$emit('tap')
|
||
this.$emit('click')
|
||
break
|
||
// 出错
|
||
case 'onError':
|
||
this.$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>
|