gree_leran/node_modules/uview-plus/components/u-parse/node/node.vue

576 lines
16 KiB
Vue

<template>
<view :id="attrs.id" :class="'_block _'+name+' '+attrs.class" :style="attrs.style">
<block v-for="(n, i) in childs" v-bind:key="i">
<!-- 图片 -->
<!-- 占位图 -->
<image v-if="n.name==='img'&&!n.t&&((opts[1]&&!ctrl[i])||ctrl[i]<0)" class="_img" :style="n.attrs.style" :src="ctrl[i]<0?opts[2]:opts[1]" mode="widthFix" />
<!-- 显示图片 -->
<!-- #ifdef H5 || (APP-PLUS && VUE2) -->
<img v-if="n.name==='img'" :id="n.attrs.id" :class="'_img '+n.attrs.class" :style="(ctrl[i]===-1?'display:none;':'')+n.attrs.style" :src="n.attrs.src||(ctrl.load?n.attrs['data-src']:'')" :data-i="i" @load="imgLoad" @error="mediaError" @tap.stop="imgTap" @longpress="imgLongTap" />
<!-- #endif -->
<!-- #ifndef H5 || (APP-PLUS && VUE2) -->
<!-- 表格中的图片,使用 rich-text 防止大小不正确 -->
<rich-text v-if="n.name==='img'&&n.t" :style="'display:'+n.t" :nodes="'<img class=\'_img\' style=\''+n.attrs.style+'\' src=\''+n.attrs.src+'\'>'" :data-i="i" @tap.stop="imgTap" />
<!-- #endif -->
<!-- #ifndef H5 || APP-PLUS -->
<image v-else-if="n.name==='img'" :id="n.attrs.id" :class="'_img '+n.attrs.class" :style="(ctrl[i]===-1?'display:none;':'')+'width:'+(ctrl[i]||1)+'px;height:1px;'+n.attrs.style" :src="n.attrs.src" :mode="!n.h?'widthFix':(!n.w?'heightFix':'')" :lazy-load="opts[0]" :webp="n.webp" :show-menu-by-longpress="opts[3]&&!n.attrs.ignore" :image-menu-prevent="!opts[3]||n.attrs.ignore" :data-i="i" @load="imgLoad" @error="mediaError" @tap.stop="imgTap" @longpress="imgLongTap" />
<!-- #endif -->
<!-- #ifdef APP-PLUS && VUE3 -->
<image v-else-if="n.name==='img'" :id="n.attrs.id" :class="'_img '+n.attrs.class" :style="(ctrl[i]===-1?'display:none;':'')+'width:'+(ctrl[i]||1)+'px;'+n.attrs.style" :src="n.attrs.src||(ctrl.load?n.attrs['data-src']:'')" :mode="!n.h?'widthFix':(!n.w?'heightFix':'')" :data-i="i" @load="imgLoad" @error="mediaError" @tap.stop="imgTap" @longpress="imgLongTap" />
<!-- #endif -->
<!-- 文本 -->
<!-- #ifdef MP-WEIXIN -->
<text v-else-if="n.text" :user-select="opts[4]=='force'&&isiOS" decode>{{n.text}}</text>
<!-- #endif -->
<!-- #ifndef MP-WEIXIN || MP-BAIDU || MP-ALIPAY || MP-TOUTIAO -->
<text v-else-if="n.text" decode>{{n.text}}</text>
<!-- #endif -->
<text v-else-if="n.name==='br'">\n</text>
<!-- 链接 -->
<view v-else-if="n.name==='a'" :id="n.attrs.id" :class="(n.attrs.href?'_a ':'')+n.attrs.class" hover-class="_hover" :style="'display:inline;'+n.attrs.style" :data-i="i" @tap.stop="linkTap">
<node name="span" :childs="n.children" :opts="opts" style="display:inherit" />
</view>
<!-- 视频 -->
<!-- #ifdef APP-PLUS -->
<view v-else-if="n.html" :id="n.attrs.id" :class="'_video '+n.attrs.class" :style="n.attrs.style" v-html="n.html" @vplay.stop="play" />
<!-- #endif -->
<!-- #ifndef APP-PLUS -->
<video v-else-if="n.name==='video'" :id="n.attrs.id" :class="n.attrs.class" :style="n.attrs.style" :autoplay="n.attrs.autoplay" :controls="n.attrs.controls" :loop="n.attrs.loop" :muted="n.attrs.muted" :object-fit="n.attrs['object-fit']" :poster="n.attrs.poster" :src="n.src[ctrl[i]||0]" :data-i="i" @play="play" @error="mediaError" />
<!-- #endif -->
<!-- #ifdef H5 || APP-PLUS -->
<iframe v-else-if="n.name==='iframe'" :style="n.attrs.style" :allowfullscreen="n.attrs.allowfullscreen" :frameborder="n.attrs.frameborder" :src="n.attrs.src" />
<embed v-else-if="n.name==='embed'" :style="n.attrs.style" :src="n.attrs.src" />
<!-- #endif -->
<!-- #ifndef MP-TOUTIAO || ((H5 || APP-PLUS) && VUE3) -->
<!-- 音频 -->
<audio v-else-if="n.name==='audio'" :id="n.attrs.id" :class="n.attrs.class" :style="n.attrs.style" :author="n.attrs.author" :controls="n.attrs.controls" :loop="n.attrs.loop" :name="n.attrs.name" :poster="n.attrs.poster" :src="n.src[ctrl[i]||0]" :data-i="i" @play="play" @error="mediaError" />
<!-- #endif -->
<view v-else-if="(n.name==='table'&&n.c)||n.name==='li'" :id="n.attrs.id" :class="'_'+n.name+' '+n.attrs.class" :style="n.attrs.style">
<node v-if="n.name==='li'" :childs="n.children" :opts="opts" />
<view v-else v-for="(tbody, x) in n.children" v-bind:key="x" :class="'_'+tbody.name+' '+tbody.attrs.class" :style="tbody.attrs.style">
<node v-if="tbody.name==='td'||tbody.name==='th'" :childs="tbody.children" :opts="opts" />
<block v-else v-for="(tr, y) in tbody.children" v-bind:key="y">
<view v-if="tr.name==='td'||tr.name==='th'" :class="'_'+tr.name+' '+tr.attrs.class" :style="tr.attrs.style">
<node :childs="tr.children" :opts="opts" />
</view>
<view v-else :class="'_'+tr.name+' '+tr.attrs.class" :style="tr.attrs.style">
<view v-for="(td, z) in tr.children" v-bind:key="z" :class="'_'+td.name+' '+td.attrs.class" :style="td.attrs.style">
<node :childs="td.children" :opts="opts" />
</view>
</view>
</block>
</view>
</view>
<!-- 富文本 -->
<!-- #ifdef H5 || ((MP-WEIXIN || MP-QQ || APP-PLUS || MP-360) && VUE2) -->
<rich-text v-else-if="!n.c&&!handler.isInline(n.name, n.attrs.style)" :id="n.attrs.id" :style="n.f" :user-select="opts[4]" :nodes="[n]" />
<!-- #endif -->
<!-- #ifndef H5 || ((MP-WEIXIN || MP-QQ || APP-PLUS || MP-360) && VUE2) -->
<rich-text v-else-if="!n.c" :id="n.attrs.id" :style="n.f+';display:inline'" :preview="false" :selectable="opts[4]" :user-select="opts[4]" :nodes="[n]" />
<!-- #endif -->
<!-- 继续递归 -->
<view v-else-if="n.c===2" :id="n.attrs.id" :class="'_block _'+n.name+' '+n.attrs.class" :style="n.f+';'+n.attrs.style">
<node v-for="(n2, j) in n.children" v-bind:key="j" :style="n2.f" :name="n2.name" :attrs="n2.attrs" :childs="n2.children" :opts="opts" />
</view>
<node v-else :style="n.f" :name="n.name" :attrs="n.attrs" :childs="n.children" :opts="opts" />
</block>
</view>
</template>
<script module="handler" lang="wxs">
// 行内标签列表
var inlineTags = {
abbr: true,
b: true,
big: true,
code: true,
del: true,
em: true,
i: true,
ins: true,
label: true,
q: true,
small: true,
span: true,
strong: true,
sub: true,
sup: true
}
/**
* @description 判断是否为行内标签
*/
module.exports = {
isInline: function (tagName, style) {
return inlineTags[tagName] || (style || '').indexOf('display:inline') !== -1
}
}
</script>
<script>
import node from './node'
export default {
name: 'node',
options: {
// #ifdef MP-WEIXIN
virtualHost: true,
// #endif
// #ifdef MP-TOUTIAO
addGlobalClass: false
// #endif
},
data () {
return {
ctrl: {},
// #ifdef MP-WEIXIN
isiOS: uni.getSystemInfoSync().system.includes('iOS')
// #endif
}
},
props: {
name: String,
attrs: {
type: Object,
default () {
return {}
}
},
childs: Array,
opts: Array
},
components: {
// #ifndef (H5 || APP-PLUS) && VUE3
node
// #endif
},
mounted () {
this.$nextTick(() => {
for (this.root = this.$parent; this.root.$options.name !== 'u-parse'; this.root = this.root.$parent);
})
// #ifdef H5 || APP-PLUS
if (this.opts[0]) {
let i
for (i = this.childs.length; i--;) {
if (this.childs[i].name === 'img') break
}
if (i !== -1) {
this.observer = uni.createIntersectionObserver(this).relativeToViewport({
top: 500,
bottom: 500
})
this.observer.observe('._img', res => {
if (res.intersectionRatio) {
this.$set(this.ctrl, 'load', 1)
this.observer.disconnect()
}
})
}
}
// #endif
},
beforeDestroy () {
// #ifdef H5 || APP-PLUS
if (this.observer) {
this.observer.disconnect()
}
// #endif
},
methods:{
// #ifdef MP-WEIXIN
toJSON () { return this },
// #endif
/**
* @description 播放视频事件
* @param {Event} e
*/
play (e) {
this.root.$emit('play')
// #ifndef APP-PLUS
if (this.root.pauseVideo) {
let flag = false
const id = e.target.id
for (let i = this.root._videos.length; i--;) {
if (this.root._videos[i].id === id) {
flag = true
} else {
this.root._videos[i].pause() // 自动暂停其他视频
}
}
// 将自己加入列表
if (!flag) {
const ctx = uni.createVideoContext(id
// #ifndef MP-BAIDU
, this
// #endif
)
ctx.id = id
if (this.root.playbackRate) {
ctx.playbackRate(this.root.playbackRate)
}
this.root._videos.push(ctx)
}
}
// #endif
},
/**
* @description 图片点击事件
* @param {Event} e
*/
imgTap (e) {
const node = this.childs[e.currentTarget.dataset.i]
if (node.a) {
this.linkTap(node.a)
return
}
if (node.attrs.ignore) return
// #ifdef H5 || APP-PLUS
node.attrs.src = node.attrs.src || node.attrs['data-src']
// #endif
this.root.$emit('imgTap', node.attrs)
// 自动预览图片
if (this.root.previewImg) {
uni.previewImage({
// #ifdef MP-WEIXIN
showmenu: this.root.showImgMenu,
// #endif
// #ifdef MP-ALIPAY
enablesavephoto: this.root.showImgMenu,
enableShowPhotoDownload: this.root.showImgMenu,
// #endif
current: parseInt(node.attrs.i),
urls: this.root.imgList
})
}
},
/**
* @description 图片长按
*/
imgLongTap (e) {
// #ifdef APP-PLUS
const attrs = this.childs[e.currentTarget.dataset.i].attrs
if (this.opts[3] && !attrs.ignore) {
uni.showActionSheet({
itemList: ['保存图片'],
success: () => {
const save = path => {
uni.saveImageToPhotosAlbum({
filePath: path,
success () {
uni.showToast({
title: '保存成功'
})
}
})
}
if (this.root.imgList[attrs.i].startsWith('http')) {
uni.downloadFile({
url: this.root.imgList[attrs.i],
success: res => save(res.tempFilePath)
})
} else {
save(this.root.imgList[attrs.i])
}
}
})
}
// #endif
},
/**
* @description 图片加载完成事件
* @param {Event} e
*/
imgLoad (e) {
const i = e.currentTarget.dataset.i
/* #ifndef H5 || (APP-PLUS && VUE2) */
if (!this.childs[i].w) {
// 设置原宽度
this.$set(this.ctrl, i, e.detail.width)
} else /* #endif */ if ((this.opts[1] && !this.ctrl[i]) || this.ctrl[i] === -1) {
// 加载完毕,取消加载中占位图
this.$set(this.ctrl, i, 1)
}
this.checkReady()
},
/**
* @description 检查是否所有图片加载完毕
*/
checkReady () {
if (!this.root.lazyLoad) {
this.root._unloadimgs -= 1
if (!this.root._unloadimgs) {
setTimeout(() => {
this.root.getRect().then(rect => {
this.root.$emit('ready', rect)
}).catch(() => {
this.root.$emit('ready', {})
})
}, 350)
}
}
},
/**
* @description 链接点击事件
* @param {Event} e
*/
linkTap (e) {
const node = e.currentTarget ? this.childs[e.currentTarget.dataset.i] : {}
const attrs = node.attrs || e
const href = attrs.href
this.root.$emit('linkTap', Object.assign({
innerText: this.root.getText(node.children || []) // 链接内的文本内容
}, attrs))
if (href) {
if (href[0] === '#') {
// 跳转锚点
this.root.navigateTo(href.substring(1)).catch(() => { })
} else if (href.split('?')[0].includes('://')) {
// 复制外部链接
if (this.root.copyLink) {
// #ifdef H5
window.open(href)
// #endif
// #ifdef MP
uni.setClipboardData({
data: href,
success: () =>
uni.showToast({
title: '链接已复制'
})
})
// #endif
// #ifdef APP-PLUS
plus.runtime.openWeb(href)
// #endif
}
} else {
// 跳转页面
uni.navigateTo({
url: href,
fail () {
uni.switchTab({
url: href,
fail () { }
})
}
})
}
}
},
/**
* @description 错误事件
* @param {Event} e
*/
mediaError (e) {
const i = e.currentTarget.dataset.i
const node = this.childs[i]
// 加载其他源
if (node.name === 'video' || node.name === 'audio') {
let index = (this.ctrl[i] || 0) + 1
if (index > node.src.length) {
index = 0
}
if (index < node.src.length) {
this.$set(this.ctrl, i, index)
return
}
} else if (node.name === 'img') {
// #ifdef H5 && VUE3
if (this.opts[0] && !this.ctrl.load) return
// #endif
// 显示错误占位图
if (this.opts[2]) {
this.$set(this.ctrl, i, -1)
}
this.checkReady()
}
if (this.root) {
this.root.$emit('error', {
source: node.name,
attrs: node.attrs,
// #ifndef H5 && VUE3
errMsg: e.detail.errMsg
// #endif
})
}
}
}
}
</script>
<style>
/* a 标签默认效果 */
._a {
padding: 1.5px 0 1.5px 0;
color: #366092;
word-break: break-all;
}
/* a 标签点击态效果 */
._hover {
text-decoration: underline;
opacity: 0.7;
}
/* 图片默认效果 */
._img {
max-width: 100%;
-webkit-touch-callout: none;
}
/* 内部样式 */
._block {
display: block;
}
._b,
._strong {
font-weight: bold;
}
._code {
font-family: monospace;
}
._del {
text-decoration: line-through;
}
._em,
._i {
font-style: italic;
}
._h1 {
font-size: 2em;
}
._h2 {
font-size: 1.5em;
}
._h3 {
font-size: 1.17em;
}
._h5 {
font-size: 0.83em;
}
._h6 {
font-size: 0.67em;
}
._h1,
._h2,
._h3,
._h4,
._h5,
._h6 {
display: block;
font-weight: bold;
}
._image {
height: 1px;
}
._ins {
text-decoration: underline;
}
._li {
display: list-item;
}
._ol {
list-style-type: decimal;
}
._ol,
._ul {
display: block;
padding-left: 40px;
margin: 1em 0;
}
._q::before {
content: '"';
}
._q::after {
content: '"';
}
._sub {
font-size: smaller;
vertical-align: sub;
}
._sup {
font-size: smaller;
vertical-align: super;
}
._thead,
._tbody,
._tfoot {
display: table-row-group;
}
._tr {
display: table-row;
}
._td,
._th {
display: table-cell;
vertical-align: middle;
}
._th {
font-weight: bold;
text-align: center;
}
._ul {
list-style-type: disc;
}
._ul ._ul {
margin: 0;
list-style-type: circle;
}
._ul ._ul ._ul {
list-style-type: square;
}
._abbr,
._b,
._code,
._del,
._em,
._i,
._ins,
._label,
._q,
._span,
._strong,
._sub,
._sup {
display: inline;
}
/* #ifdef APP-PLUS */
._video {
width: 300px;
height: 225px;
}
/* #endif */
</style>