mirror of
https://gitee.com/huangge1199_admin/vue-pro.git
synced 2024-11-30 11:11:55 +08:00
367 lines
11 KiB
Vue
367 lines
11 KiB
Vue
<template>
|
||
<view id="_root" :class="(selectable?'_select ':'')+'_root'">
|
||
<slot v-if="!nodes[0]" />
|
||
<!-- #ifndef APP-PLUS-NVUE -->
|
||
<node v-else :childs="nodes" :opts="[lazyLoad,loadingImg,errorImg,showImgMenu]" />
|
||
<!-- #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>
|
||
import props from './props.js';
|
||
/**
|
||
* mp-html v2.0.4
|
||
* @description 富文本组件
|
||
* @tutorial https://github.com/jin-yufeng/mp-html
|
||
* @property {String} bgColor 背景颜色，只适用与APP-PLUS-NVUE
|
||
* @property {String} content 用于渲染的富文本字符串（默认 true ）
|
||
* @property {Boolean} copyLink 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} errorImg 图片出错时的占位图链接
|
||
* @property {Boolean} lazyLoad 是否开启图片懒加载（默认 true ）
|
||
* @property {string} loadingImg 图片加载过程中的占位图链接
|
||
* @property {Boolean} pauseVideo 是否在播放一个视频时自动暂停其它视频（默认 true ）
|
||
* @property {Boolean} previewImg 是否允许图片被点击时自动预览（默认 true ）
|
||
* @property {Boolean} scrollTable 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} selectable 是否开启长按复制
|
||
* @property {Boolean} setTitle 是否将 title 标签的内容设置到页面标题（默认 true ）
|
||
* @property {Boolean} showImgMenu 是否允许图片被长按时显示菜单（默认 true ）
|
||
* @property {Object} tagStyle 标签的默认样式
|
||
* @property {Boolean | Number} useAnchor 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} error 媒体加载出错时触发
|
||
*/
|
||
const plugins=[]
|
||
const parser = require('./parser')
|
||
// #ifndef APP-PLUS-NVUE
|
||
import node from './node/node'
|
||
// #endif
|
||
// #ifdef APP-PLUS-NVUE
|
||
const dom = weex.requireModule('dom')
|
||
// #endif
|
||
export default {
|
||
name: 'mp-html',
|
||
data() {
|
||
return {
|
||
nodes: [],
|
||
// #ifdef APP-PLUS-NVUE
|
||
height: 0
|
||
// #endif
|
||
}
|
||
},
|
||
mixins:[props],
|
||
// #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')
|
||
clearInterval(this._timer)
|
||
},
|
||
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)
|
||
return reject('Anchor is disabled')
|
||
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() // 获取 scroll-view 的位置和滚动距离
|
||
else
|
||
selector.selectViewport().scrollOffset() // 获取窗口的滚动距离
|
||
selector.exec(res => {
|
||
if (!res[0])
|
||
return reject('Label not found')
|
||
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() {
|
||
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'
|
||
}
|
||
}
|
||
})(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('Root label not found'))
|
||
})
|
||
},
|
||
|
||
/**
|
||
* @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.$emit('load')
|
||
})
|
||
|
||
// 等待图片加载完毕
|
||
let height
|
||
clearInterval(this._timer)
|
||
this._timer = setInterval(() => {
|
||
this.getRect().then(rect => {
|
||
// 350ms 总高度无变化就触发 ready 事件
|
||
if (rect.height == height) {
|
||
this.$emit('ready', rect)
|
||
clearInterval(this._timer)
|
||
}
|
||
height = rect.height
|
||
}).catch(() => { })
|
||
}, 350)
|
||
// #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.$refs.web.evalJs('setContent(' + JSON.stringify(nodes) + ',' + JSON.stringify([this.bgColor, this.errorImg, this.loadingImg, this.pauseVideo, this.scrollTable, this.selectable]) + ',' + append + ')')
|
||
},
|
||
|
||
/**
|
||
* @description 接收到 web-view 消息
|
||
*/
|
||
_onMessage(e) {
|
||
const message = e.detail.data[0]
|
||
switch (message.action) {
|
||
// web-view 初始化完毕
|
||
case 'onJSBridgeReady':
|
||
this._ready = true
|
||
if (this.nodes)
|
||
this._set(this.nodes)
|
||
break
|
||
// 内容 dom 加载完毕
|
||
case 'onLoad':
|
||
this.height = message.height
|
||
this._hook('onLoad')
|
||
this.$emit('load')
|
||
break
|
||
// 所有图片加载完毕
|
||
case 'onReady':
|
||
this.getRect().then(res => {
|
||
this.$emit('ready', res)
|
||
}).catch(() => { })
|
||
break
|
||
// 总高度发生变化
|
||
case 'onHeightChange':
|
||
this.height = message.height
|
||
break
|
||
// 图片点击
|
||
case 'onImgTap':
|
||
this.$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
|
||
})
|
||
}
|
||
// 打开外链
|
||
else if (href.includes('://')) {
|
||
if (this.copyLink)
|
||
plus.runtime.openWeb(href)
|
||
}
|
||
else
|
||
uni.navigateTo({
|
||
url: href,
|
||
fail() {
|
||
wx.switchTab({
|
||
url: href
|
||
})
|
||
}
|
||
})
|
||
}
|
||
break
|
||
// 获取到锚点的偏移量
|
||
case 'getOffset':
|
||
if (typeof message.offset == 'number') {
|
||
dom.scrollToElement(this.$refs.web, {
|
||
offset: message.offset + this._navigateTo.offset
|
||
})
|
||
this._navigateTo.resolve()
|
||
} else
|
||
this._navigateTo.reject('Label not found')
|
||
break
|
||
// 点击
|
||
case 'onClick':
|
||
this.$emit('tap')
|
||
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 {
|
||
overflow: auto;
|
||
-webkit-overflow-scrolling: touch;
|
||
}
|
||
|
||
/* 长按复制 */
|
||
._select {
|
||
user-select: text;
|
||
}
|
||
/* #endif */
|
||
</style>
|