500 lines
13 KiB
Vue
500 lines
13 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 v2.4.1
|
|
* @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: 'u-parse',
|
|
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 += node.text.replace(/&/g, '&')
|
|
} 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>
|