815 lines
25 KiB
Vue
815 lines
25 KiB
Vue
<!--
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||
parser 主模块组件
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github：https://github.com/jin-yufeng/Parser
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docs：https://jin-yufeng.github.io/Parser
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插件市场：https://ext.dcloud.net.cn/plugin?id=805
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author：JinYufeng
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update：2020/04/14
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-->
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<template>
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||
<view>
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||
<slot v-if="!nodes.length" />
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||
<!--#ifdef APP-PLUS-NVUE-->
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<web-view id="top" ref="web" :src="src" :style="'margin-top:-2px;height:'+height+'px'" @onPostMessage="_message" />
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<!--#endif-->
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<!--#ifndef APP-PLUS-NVUE-->
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<view id="top" :style="showAm+(selectable?';user-select:text;-webkit-user-select:text':'')" :animation="scaleAm" @tap="_tap"
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||
@touchstart="_touchstart" @touchmove="_touchmove">
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<!--#ifdef H5-->
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<div :id="'rtf'+uid"></div>
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<!--#endif-->
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<!--#ifndef H5-->
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<trees :nodes="nodes" :lazy-load="lazyLoad" :loadVideo="loadVideo" />
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<image v-for="(item, index) in imgs" v-bind:key="index" :id="index" :src="item" hidden @load="_load" />
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||
<!--#endif-->
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||
</view>
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||
<!--#endif-->
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||
</view>
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||
</template>
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||
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||
<script>
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||
// #ifndef H5 || APP-PLUS-NVUE
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import trees from './libs/trees';
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var cache = {},
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// #ifdef MP-WEIXIN || MP-TOUTIAO
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fs = uni.getFileSystemManager ? uni.getFileSystemManager() : null,
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// #endif
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Parser = require('./libs/MpHtmlParser.js');
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var document; // document 补丁包 https://jin-yufeng.github.io/Parser/#/instructions?id=document
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||
// 计算 cache 的 key
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||
function hash(str) {
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||
for (var i = str.length, val = 5381; i--;)
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val += (val << 5) + str.charCodeAt(i);
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||
return val;
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||
}
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||
// #endif
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// #ifdef H5 || APP-PLUS-NVUE
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var rpx = uni.getSystemInfoSync().screenWidth / 750,
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cfg = require('./libs/config.js');
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// #endif
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// #ifdef APP-PLUS-NVUE
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var dom = weex.requireModule('dom');
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// #endif
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export default {
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name: 'parser',
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data() {
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return {
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// #ifdef APP-PLUS
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loadVideo: false,
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||
// #endif
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||
// #ifdef H5
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||
uid: this._uid,
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||
// #endif
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||
// #ifdef APP-PLUS-NVUE
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src: '',
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height: 1,
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||
// #endif
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// #ifndef APP-PLUS-NVUE
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scaleAm: '',
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||
showAm: '',
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imgs: [],
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// #endif
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nodes: []
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}
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||
},
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||
// #ifndef H5 || APP-PLUS-NVUE
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components: {
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trees
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||
},
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||
// #endif
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props: {
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||
'html': null,
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||
// #ifndef MP-ALIPAY
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'autopause': {
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||
type: Boolean,
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default: true
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},
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||
// #endif
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'autosetTitle': {
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||
type: Boolean,
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||
default: true
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||
},
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||
// #ifndef H5 || APP-PLUS-NVUE
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'compress': Number,
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||
'useCache': Boolean,
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||
'xml': Boolean,
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||
// #endif
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'domain': String,
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||
// #ifndef MP-BAIDU || MP-ALIPAY || APP-PLUS
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||
'gestureZoom': Boolean,
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||
// #endif
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||
// #ifdef MP-WEIXIN || MP-QQ || H5 || APP-PLUS
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||
'lazyLoad': Boolean,
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||
// #endif
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||
'selectable': Boolean,
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||
'tagStyle': Object,
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||
'showWithAnimation': Boolean,
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||
'useAnchor': Boolean
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||
},
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||
watch: {
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||
html(html) {
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||
this.setContent(html);
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}
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},
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mounted() {
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||
// 图片数组
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this.imgList = [];
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this.imgList.each = function(f) {
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for (var i = 0, len = this.length; i < len; i++)
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this.setItem(i, f(this[i], i, this));
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||
}
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this.imgList.setItem = function(i, src) {
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if (i == void 0 || !src) return;
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// #ifndef MP-ALIPAY || APP-PLUS
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// 去重
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if (src.indexOf('http') == 0 && this.includes(src)) {
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var newSrc = '';
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for (var j = 0, c; c = src[j]; j++) {
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||
if (c == '/' && src[j - 1] != '/' && src[j + 1] != '/') break;
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newSrc += Math.random() > 0.5 ? c.toUpperCase() : c;
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}
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newSrc += src.substr(j);
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return this[i] = newSrc;
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}
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// #endif
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this[i] = src;
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// 暂存 data src
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if (src.includes('data:image')) {
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var filePath, info = src.match(/data:image\/(\S+?);(\S+?),(.+)/);
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||
if (!info) return;
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// #ifdef MP-WEIXIN || MP-TOUTIAO
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filePath = `${wx.env.USER_DATA_PATH}/${Date.now()}.${info[1]}`;
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fs && fs.writeFile({
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filePath,
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data: info[3],
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||
encoding: info[2],
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||
success: () => this[i] = filePath
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||
})
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// #endif
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// #ifdef APP-PLUS
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filePath = `_doc/parser_tmp/${Date.now()}.${info[1]}`;
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var bitmap = new plus.nativeObj.Bitmap();
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bitmap.loadBase64Data(src, () => {
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bitmap.save(filePath, {}, () => {
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bitmap.clear()
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this[i] = filePath;
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})
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})
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// #endif
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}
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}
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if (this.html) this.setContent(this.html);
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},
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beforeDestroy() {
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// #ifdef H5
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if (this._observer) this._observer.disconnect();
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||
// #endif
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this.imgList.each(src => {
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||
// #ifdef APP-PLUS
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if (src && src.includes('_doc')) {
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plus.io.resolveLocalFileSystemURL(src, entry => {
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entry.remove();
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});
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}
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// #endif
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// #ifdef MP-WEIXIN || MP-TOUTIAO
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if (src && src.includes(uni.env.USER_DATA_PATH))
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fs && fs.unlink({
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filePath: src
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})
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// #endif
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})
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clearInterval(this._timer);
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},
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methods: {
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// #ifdef H5 || APP-PLUS-NVUE
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_Dom2Str(nodes) {
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var str = '';
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for (var node of nodes) {
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if (node.type == 'text')
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str += node.text;
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else {
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str += ('<' + node.name);
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for (var attr in node.attrs || {})
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str += (' ' + attr + '="' + node.attrs[attr] + '"');
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if (!node.children || !node.children.length) str += '>';
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||
else str += ('>' + this._Dom2Str(node.children) + '</' + node.name + '>');
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}
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}
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return str;
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},
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_handleHtml(html, append) {
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||
if (typeof html != 'string') html = this._Dom2Str(html.nodes || html);
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||
// 处理 rpx
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||
if (html.includes('rpx'))
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html = html.replace(/[0-9.]+\s*rpx/g, $ => parseFloat($) * rpx + 'px');
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if (!append) {
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// 处理 tag-style 和 userAgentStyles
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||
var style = '<style>@keyframes show{0%{opacity:0}100%{opacity:1}}';
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||
for (var item in cfg.userAgentStyles)
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||
style += `${item}{${cfg.userAgentStyles[item]}}`;
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||
for (item in this.tagStyle)
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||
style += `${item}{${this.tagStyle[item]}}`;
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||
style += '</style>';
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||
html = style + html;
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||
}
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||
return html;
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||
},
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||
// #endif
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setContent(html, append) {
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||
// #ifdef APP-PLUS-NVUE
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||
if (!html) {
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||
this.src = '';
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||
this.height = 1;
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||
return;
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||
}
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if (append) return;
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plus.io.resolveLocalFileSystemURL('_doc', entry => {
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||
entry.getDirectory('parser_tmp', {
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create: true
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||
}, entry => {
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||
var fileName = Date.now() + '.html';
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||
entry.getFile(fileName, {
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||
create: true
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||
}, entry => {
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||
entry.createWriter(writer => {
|
||
writer.onwriteend = () => {
|
||
this.nodes = [1];
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||
this.src = '_doc/parser_tmp/' + fileName;
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||
this.$nextTick(function() {
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||
entry.remove();
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||
})
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||
}
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||
html =
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||
'<meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1' +
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||
(this.selectable ? '' : ',user-scalable=no') +
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||
'"><script type="text/javascript" src="https://js.cdn.aliyun.dcloud.net.cn/dev/uni-app/uni.webview.1.5.2.js"></' +
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||
'script><base href="' + this.domain + '">' + this._handleHtml(html) +
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||
'<script>"use strict";function post(t){uni.postMessage({data:t})}' +
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||
(this.showWithAnimation ? 'document.body.style.animation="show .5s",' : '') +
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||
'document.addEventListener("UniAppJSBridgeReady",function(){post({action:"load",text:document.body.innerText});var t=document.getElementsByTagName("title");t.length&&post({action:"getTitle",title:t[0].innerText});for(var e,o=document.getElementsByTagName("img"),n=[],i=0,r=0;e=o[i];i++)e.onerror=function(){post({action:"error",source:"img",target:this})},e.hasAttribute("ignore")||"A"==e.parentElement.nodeName||(e.i=r++,n.push(e.src),e.onclick=function(){post({action:"preview",img:{i:this.i,src:this.src}})});post({action:"getImgList",imgList:n});for(var a,s=document.getElementsByTagName("a"),c=0;a=s[c];c++)a.onclick=function(){var t,e=this.getAttribute("href");if("#"==e[0]){var r=document.getElementById(e.substr(1));r&&(t=r.offsetTop)}return post({action:"linkpress",href:e,offset:t}),!1};;for(var u,m=document.getElementsByTagName("video"),d=0;u=m[d];d++)u.style.maxWidth="100%",u.onerror=function(){post({action:"error",source:"video",target:this})}' +
|
||
(this.autopause ? ',u.onplay=function(){for(var t,e=0;t=m[e];e++)t!=this&&t.pause()}' : '') +
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||
';for(var g,l=document.getElementsByTagName("audio"),p=0;g=l[p];p++)g.onerror=function(){post({action:"error",source:"audio",target:this})};window.onload=function(){post({action:"ready",height:document.body.scrollHeight})}});</' +
|
||
'script>';
|
||
writer.write(html);
|
||
});
|
||
})
|
||
})
|
||
})
|
||
// #endif
|
||
// #ifdef H5
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||
if (!html) {
|
||
if (this.rtf && !append) this.rtf.parentNode.removeChild(this.rtf);
|
||
return;
|
||
}
|
||
var div = document.createElement('div');
|
||
if (!append) {
|
||
if (this.rtf) this.rtf.parentNode.removeChild(this.rtf);
|
||
this.rtf = div;
|
||
} else {
|
||
if (!this.rtf) this.rtf = div;
|
||
else this.rtf.appendChild(div);
|
||
}
|
||
div.innerHTML = this._handleHtml(html, append);
|
||
for (var styles = this.rtf.getElementsByTagName('style'), i = 0, style; style = styles[i++];) {
|
||
style.innerHTML = style.innerHTML.replace(/body/g, '#rtf' + this._uid);
|
||
style.setAttribute('scoped', 'true');
|
||
}
|
||
// 懒加载
|
||
if (!this._observer && this.lazyLoad && IntersectionObserver) {
|
||
this._observer = new IntersectionObserver(changes => {
|
||
for (let item, i = 0; item = changes[i++];) {
|
||
if (item.isIntersecting) {
|
||
item.target.src = item.target.getAttribute('data-src');
|
||
item.target.removeAttribute('data-src');
|
||
this._observer.unobserve(item.target);
|
||
}
|
||
}
|
||
}, {
|
||
rootMargin: '900px 0px 900px 0px'
|
||
})
|
||
}
|
||
var _ts = this;
|
||
// 获取标题
|
||
var title = this.rtf.getElementsByTagName('title');
|
||
if (title.length && this.autosetTitle)
|
||
uni.setNavigationBarTitle({
|
||
title: title[0].innerText
|
||
})
|
||
// 图片处理
|
||
this.imgList.length = 0;
|
||
var imgs = this.rtf.getElementsByTagName('img');
|
||
for (let i = 0, j = 0, img; img = imgs[i]; i++) {
|
||
img.style.maxWidth = '100%';
|
||
var src = img.getAttribute('src');
|
||
if (this.domain && src) {
|
||
if (src[0] == '/') {
|
||
if (src[1] == '/')
|
||
img.src = (this.domain.includes('://') ? this.domain.split('://')[0] : '') + ':' + src;
|
||
else img.src = this.domain + src;
|
||
} else if (!src.includes('://')) img.src = this.domain + '/' + src;
|
||
}
|
||
if (!img.hasAttribute('ignore') && img.parentElement.nodeName != 'A') {
|
||
img.i = j++;
|
||
_ts.imgList.push(img.src || img.getAttribute('data-src'));
|
||
img.onclick = function() {
|
||
var preview = true;
|
||
this.ignore = () => preview = false;
|
||
_ts.$emit('imgtap', this);
|
||
if (preview) {
|
||
uni.previewImage({
|
||
current: this.i,
|
||
urls: _ts.imgList
|
||
});
|
||
}
|
||
}
|
||
}
|
||
img.onerror = function() {
|
||
_ts.$emit('error', {
|
||
source: 'img',
|
||
target: this
|
||
});
|
||
}
|
||
if (_ts.lazyLoad && this._observer && img.src && img.i != 0) {
|
||
img.setAttribute('data-src', img.src);
|
||
img.removeAttribute('src');
|
||
this._observer.observe(img);
|
||
}
|
||
}
|
||
// 链接处理
|
||
var links = this.rtf.getElementsByTagName('a');
|
||
for (var link of links) {
|
||
link.onclick = function() {
|
||
var jump = true,
|
||
href = this.getAttribute('href');
|
||
_ts.$emit('linkpress', {
|
||
href,
|
||
ignore: () => jump = false
|
||
});
|
||
if (jump && href) {
|
||
if (href[0] == '#') {
|
||
if (_ts.useAnchor) {
|
||
_ts.navigateTo({
|
||
id: href.substr(1)
|
||
})
|
||
}
|
||
} else if (href.indexOf('http') == 0 || href.indexOf('//') == 0)
|
||
return true;
|
||
else {
|
||
uni.navigateTo({
|
||
url: href
|
||
})
|
||
}
|
||
}
|
||
return false;
|
||
}
|
||
}
|
||
// 视频处理
|
||
var videos = this.rtf.getElementsByTagName('video');
|
||
_ts.videoContexts = videos;
|
||
for (let video, i = 0; video = videos[i++];) {
|
||
video.style.maxWidth = '100%';
|
||
video.onerror = function() {
|
||
_ts.$emit('error', {
|
||
source: 'video',
|
||
target: this
|
||
});
|
||
}
|
||
video.onplay = function() {
|
||
if (_ts.autopause)
|
||
for (let item, i = 0; item = _ts.videoContexts[i++];)
|
||
if (item != this) item.pause();
|
||
}
|
||
}
|
||
// 音频处理
|
||
var audios = this.rtf.getElementsByTagName('audios');
|
||
for (var audio of audios)
|
||
audio.onerror = function() {
|
||
_ts.$emit('error', {
|
||
source: 'audio',
|
||
target: this
|
||
});
|
||
}
|
||
this.document = this.rtf;
|
||
if (!append) document.getElementById('rtf' + this._uid).appendChild(this.rtf);
|
||
this.$nextTick(() => {
|
||
this.nodes = [1];
|
||
this.$emit('load');
|
||
})
|
||
setTimeout(() => this.showAm = '', 500);
|
||
// #endif
|
||
// #ifndef H5 || APP-PLUS-NVUE
|
||
var nodes;
|
||
if (!html)
|
||
return this.nodes = [];
|
||
else if (typeof html == 'string') {
|
||
let parser = new Parser(html, this);
|
||
// 缓存读取
|
||
if (this.useCache) {
|
||
var hashVal = hash(html);
|
||
if (cache[hashVal])
|
||
nodes = cache[hashVal];
|
||
else {
|
||
nodes = parser.parse();
|
||
cache[hashVal] = nodes;
|
||
}
|
||
} else nodes = parser.parse();
|
||
this.$emit('parse', nodes);
|
||
} else if (Object.prototype.toString.call(html) == '[object Array]') {
|
||
// 非本插件产生的 array 需要进行一些转换
|
||
if (html.length && html[0].PoweredBy != 'Parser') {
|
||
let parser = new Parser(html, this);
|
||
(function f(ns) {
|
||
for (var i = 0, n; n = ns[i]; i++) {
|
||
if (n.type == 'text') continue;
|
||
n.attrs = n.attrs || {};
|
||
for (var item in n.attrs)
|
||
if (typeof n.attrs[item] != 'string') n.attrs[item] = n.attrs[item].toString();
|
||
parser.matchAttr(n, parser);
|
||
if (n.children && n.children.length) {
|
||
parser.STACK.push(n);
|
||
f(n.children);
|
||
parser.popNode(parser.STACK.pop());
|
||
} else n.children = void 0;
|
||
}
|
||
})(html);
|
||
}
|
||
nodes = html;
|
||
} else if (typeof html == 'object' && html.nodes) {
|
||
nodes = html.nodes;
|
||
console.warn('错误的 html 类型：object 类型已废弃');
|
||
} else
|
||
return console.warn('错误的 html 类型：' + typeof html);
|
||
// #ifdef APP-PLUS
|
||
this.loadVideo = false;
|
||
// #endif
|
||
if (document) this.document = new document(this.nodes, 'nodes', this);
|
||
if (append) this.nodes = this.nodes.concat(nodes);
|
||
else this.nodes = nodes;
|
||
if (nodes.length && nodes[0].title && this.autosetTitle)
|
||
uni.setNavigationBarTitle({
|
||
title: nodes[0].title
|
||
})
|
||
this.$nextTick(() => {
|
||
this.imgList.length = 0;
|
||
this.videoContexts = [];
|
||
// #ifdef MP-TOUTIAO
|
||
setTimeout(() => {
|
||
// #endif
|
||
var f = (cs) => {
|
||
for (let i = 0, c; c = cs[i++];) {
|
||
if (c.$options.name == 'trees') {
|
||
for (var j = c.nodes.length, item; item = c.nodes[--j];) {
|
||
if (item.c) continue;
|
||
if (item.name == 'img') {
|
||
this.imgList.setItem(item.attrs.i, item.attrs.src);
|
||
// #ifndef MP-ALIPAY
|
||
if (!c.observer && !c.imgLoad && item.attrs.i != '0') {
|
||
if (this.lazyLoad && uni.createIntersectionObserver) {
|
||
c.observer = uni.createIntersectionObserver(c);
|
||
c.observer.relativeToViewport({
|
||
top: 900,
|
||
bottom: 900
|
||
}).observe('._img', () => {
|
||
c.imgLoad = true;
|
||
c.observer.disconnect();
|
||
})
|
||
} else
|
||
c.imgLoad = true;
|
||
}
|
||
// #endif
|
||
}
|
||
// #ifndef MP-ALIPAY
|
||
else if (item.name == 'video') {
|
||
var ctx = uni.createVideoContext(item.attrs.id, c);
|
||
ctx.id = item.attrs.id;
|
||
this.videoContexts.push(ctx);
|
||
}
|
||
// #endif
|
||
// #ifdef MP-BAIDU || MP-ALIPAY || APP-PLUS
|
||
if (item.attrs && item.attrs.id) {
|
||
this.anchors = this.anchors || [];
|
||
this.anchors.push({
|
||
id: item.attrs.id,
|
||
node: c
|
||
})
|
||
}
|
||
// #endif
|
||
}
|
||
}
|
||
if (c.$children.length)
|
||
f(c.$children)
|
||
}
|
||
}
|
||
f(this.$children);
|
||
// #ifdef MP-TOUTIAO
|
||
}, 200)
|
||
this.$emit('load');
|
||
// #endif
|
||
// #ifdef APP-PLUS
|
||
setTimeout(() => {
|
||
this.loadVideo = true;
|
||
}, 3000);
|
||
// #endif
|
||
})
|
||
// #endif
|
||
// #ifndef APP-PLUS-NVUE
|
||
var height;
|
||
clearInterval(this._timer);
|
||
this._timer = setInterval(() => {
|
||
// #ifdef H5
|
||
var res = [this.rtf.getBoundingClientRect()];
|
||
// #endif
|
||
// #ifndef H5
|
||
// #ifdef APP-PLUS
|
||
uni.createSelectorQuery().in(this)
|
||
// #endif
|
||
// #ifndef APP-PLUS
|
||
this.createSelectorQuery()
|
||
// #endif
|
||
.select('#top').boundingClientRect().exec(res => {
|
||
// #endif
|
||
this.width = res[0].width;
|
||
if (res[0].height == height) {
|
||
this.$emit('ready', res[0])
|
||
clearInterval(this._timer);
|
||
}
|
||
height = res[0].height;
|
||
// #ifndef H5
|
||
});
|
||
// #endif
|
||
}, 350)
|
||
if (this.showWithAnimation && !append) this.showAm = 'animation:show .5s';
|
||
// #endif
|
||
},
|
||
getText(ns = this.nodes) {
|
||
// #ifdef APP-PLUS-NVUE
|
||
return this._text;
|
||
// #endif
|
||
// #ifdef H5
|
||
return this.rtf.innerText;
|
||
// #endif
|
||
// #ifndef H5 || APP-PLUS-NVUE
|
||
var txt = '';
|
||
for (var i = 0, n; n = ns[i++];) {
|
||
if (n.type == 'text') txt += n.text.replace(/ /g, '\u00A0').replace(/</g, '<').replace(/>/g, '>')
|
||
.replace(/&/g, '&');
|
||
else if (n.type == 'br') txt += '\n';
|
||
else {
|
||
// 块级标签前后加换行
|
||
var block = n.name == 'p' || n.name == 'div' || n.name == 'tr' || n.name == 'li' || (n.name[0] == 'h' && n.name[1] >
|
||
'0' && n.name[1] < '7');
|
||
if (block && txt && txt[txt.length - 1] != '\n') txt += '\n';
|
||
if (n.children) txt += this.getText(n.children);
|
||
if (block && txt[txt.length - 1] != '\n') txt += '\n';
|
||
else if (n.name == 'td' || n.name == 'th') txt += '\t';
|
||
}
|
||
}
|
||
return txt;
|
||
// #endif
|
||
},
|
||
navigateTo(obj) {
|
||
if (!this.useAnchor)
|
||
return obj.fail && obj.fail({
|
||
errMsg: 'Anchor is disabled'
|
||
})
|
||
// #ifdef APP-PLUS-NVUE
|
||
if (!obj.id)
|
||
dom.scrollToElement(this.$refs.web);
|
||
else
|
||
this.$refs.web.evalJs('var pos=document.getElementById("' + obj.id +
|
||
'");if(pos)post({action:"linkpress",href:"#",offset:pos.offsetTop})');
|
||
return obj.success && obj.success({
|
||
errMsg: 'pageScrollTo:ok'
|
||
});
|
||
// #endif
|
||
// #ifdef H5
|
||
if (!obj.id) {
|
||
window.scrollTo(0, this.rtf.offsetTop);
|
||
return obj.success && obj.success({
|
||
errMsg: 'pageScrollTo:ok'
|
||
});
|
||
}
|
||
var target = document.getElementById(obj.id);
|
||
if (!target) return obj.fail && obj.fail({
|
||
errMsg: 'Label not found'
|
||
});
|
||
obj.scrollTop = this.rtf.offsetTop + target.offsetTop;
|
||
uni.pageScrollTo(obj);
|
||
// #endif
|
||
// #ifndef H5
|
||
var Scroll = (selector, component) => {
|
||
uni.createSelectorQuery().in(component ? component : this).select(selector).boundingClientRect().selectViewport()
|
||
.scrollOffset()
|
||
.exec(res => {
|
||
if (!res || !res[0])
|
||
return obj.fail && obj.fail({
|
||
errMsg: 'Label not found'
|
||
});
|
||
obj.scrollTop = res[1].scrollTop + res[0].top;
|
||
uni.pageScrollTo(obj);
|
||
})
|
||
}
|
||
if (!obj.id) Scroll('#top');
|
||
else {
|
||
// #ifndef MP-BAIDU || MP-ALIPAY || APP-PLUS
|
||
Scroll('#top >>> #' + obj.id + ', #top >>> .' + obj.id);
|
||
// #endif
|
||
// #ifdef MP-BAIDU || MP-ALIPAY || APP-PLUS
|
||
for (var anchor of this.anchors)
|
||
if (anchor.id == obj.id)
|
||
Scroll('#' + obj.id + ', .' + obj.id, anchor.node);
|
||
// #endif
|
||
}
|
||
// #endif
|
||
},
|
||
getVideoContext(id) {
|
||
// #ifndef APP-PLUS-NVUE
|
||
if (!id) return this.videoContexts;
|
||
else
|
||
for (var i = this.videoContexts.length; i--;)
|
||
if (this.videoContexts[i].id == id) return this.videoContexts[i];
|
||
// #endif
|
||
},
|
||
// 预加载
|
||
preLoad(html, num) {
|
||
// #ifdef H5 || APP-PLUS-NVUE
|
||
if (html.constructor == Array)
|
||
html = this._Dom2Str(html);
|
||
var script = "var contain=document.createElement('div');contain.innerHTML='" + html.replace(/'/g, "\\'") +
|
||
"';for(var imgs=contain.querySelectorAll('img'),i=imgs.length-1;i>=" + num +
|
||
";i--)imgs[i].removeAttribute('src');";
|
||
// #endif
|
||
// #ifdef APP-PLUS-NVUE
|
||
this.$refs.web.evalJs(script);
|
||
// #endif
|
||
// #ifdef H5
|
||
eval(script);
|
||
// #endif
|
||
// #ifndef H5 || APP-PLUS-NVUE
|
||
if (typeof html == 'string') {
|
||
var id = hash(html);
|
||
html = new Parser(html, this).parse();
|
||
cache[id] = html;
|
||
}
|
||
var wait = [];
|
||
(function f(ns) {
|
||
for (var i = 0, n; n = ns[i++];) {
|
||
if (n.name == 'img' && n.attrs.src && !wait.includes(n.attrs.src))
|
||
wait.push(n.attrs.src);
|
||
f(n.children || []);
|
||
}
|
||
})(html);
|
||
if (num) wait = wait.slice(0, num);
|
||
this._wait = (this._wait || []).concat(wait);
|
||
if (!this.imgs) this.imgs = this._wait.splice(0, 15);
|
||
else if (this.imgs.length < 15)
|
||
this.imgs = this.imgs.concat(this._wait.splice(0, 15 - this.imgs.length));
|
||
// #endif
|
||
},
|
||
// #ifdef APP-PLUS-NVUE
|
||
_message(e) {
|
||
// 接收 web-view 消息
|
||
var data = e.detail.data[0];
|
||
if (data.action == 'load') {
|
||
this.$emit('load');
|
||
this._text = data.text;
|
||
} else if (data.action == 'getTitle') {
|
||
if (this.autosetTitle)
|
||
uni.setNavigationBarTitle({
|
||
title: data.title
|
||
})
|
||
} else if (data.action == 'getImgList') {
|
||
this.imgList.length = 0;
|
||
for (var i = data.imgList.length; i--;)
|
||
this.imgList.setItem(i, data.imgList[i]);
|
||
} else if (data.action == 'preview') {
|
||
var preview = true;
|
||
data.img.ignore = () => preview = false;
|
||
this.$emit('imgtap', data.img);
|
||
if (preview)
|
||
uni.previewImage({
|
||
current: data.img.i,
|
||
urls: this.imgList
|
||
})
|
||
} else if (data.action == 'linkpress') {
|
||
var jump = true,
|
||
href = data.href;
|
||
this.$emit('linkpress', {
|
||
href,
|
||
ignore: () => jump = false
|
||
})
|
||
if (jump && href) {
|
||
if (href[0] == '#') {
|
||
if (this.useAnchor)
|
||
dom.scrollToElement(this.$refs.web, {
|
||
offset: data.offset
|
||
})
|
||
} else if (href.includes('://'))
|
||
plus.runtime.openWeb(href);
|
||
else
|
||
uni.navigateTo({
|
||
url: href
|
||
})
|
||
}
|
||
} else if (data.action == 'error')
|
||
this.$emit('error', {
|
||
source: data.source,
|
||
target: data.target
|
||
})
|
||
else if (data.action == 'ready') {
|
||
this.height = data.height;
|
||
this.$nextTick(() => {
|
||
uni.createSelectorQuery().in(this).select('#top').boundingClientRect().exec(res => {
|
||
this.rect = res[0];
|
||
this.$emit('ready', res[0]);
|
||
})
|
||
})
|
||
}
|
||
},
|
||
// #endif
|
||
// #ifndef APP-PLUS-NVUE
|
||
// #ifndef H5
|
||
_load(e) {
|
||
if (this._wait.length)
|
||
this.$set(this.imgs, e.target.id, this._wait.shift());
|
||
},
|
||
// #endif
|
||
_tap(e) {
|
||
// #ifndef MP-BAIDU || MP-ALIPAY || APP-PLUS
|
||
if (this.gestureZoom && e.timeStamp - this._lastT < 300) {
|
||
var initY = e.touches[0].pageY - e.currentTarget.offsetTop;
|
||
if (this._zoom) {
|
||
this._scaleAm.translateX(0).scale(1).step();
|
||
uni.pageScrollTo({
|
||
scrollTop: (initY + this._initY) / 2 - e.touches[0].clientY,
|
||
duration: 400
|
||
})
|
||
} else {
|
||
var initX = e.touches[0].pageX - e.currentTarget.offsetLeft;
|
||
this._initY = initY;
|
||
this._scaleAm = uni.createAnimation({
|
||
transformOrigin: `${initX}px ${this._initY}px 0`,
|
||
timingFunction: 'ease-in-out'
|
||
});
|
||
// #ifdef MP-TOUTIAO
|
||
this._scaleAm.opacity(1);
|
||
// #endif
|
||
this._scaleAm.scale(2).step();
|
||
this._tMax = initX / 2;
|
||
this._tMin = (initX - this.width) / 2;
|
||
this._tX = 0;
|
||
}
|
||
this._zoom = !this._zoom;
|
||
this.scaleAm = this._scaleAm.export();
|
||
}
|
||
this._lastT = e.timeStamp;
|
||
// #endif
|
||
},
|
||
_touchstart(e) {
|
||
// #ifndef MP-BAIDU || MP-ALIPAY || APP-PLUS
|
||
if (e.touches.length == 1)
|
||
this._initX = this._lastX = e.touches[0].pageX;
|
||
// #endif
|
||
},
|
||
_touchmove(e) {
|
||
// #ifndef MP-BAIDU || MP-ALIPAY || APP-PLUS
|
||
var diff = e.touches[0].pageX - this._lastX;
|
||
if (this._zoom && e.touches.length == 1 && Math.abs(diff) > 20) {
|
||
this._lastX = e.touches[0].pageX;
|
||
if ((this._tX <= this._tMin && diff < 0) || (this._tX >= this._tMax && diff > 0))
|
||
return;
|
||
this._tX += (diff * Math.abs(this._lastX - this._initX) * 0.05);
|
||
if (this._tX < this._tMin) this._tX = this._tMin;
|
||
if (this._tX > this._tMax) this._tX = this._tMax;
|
||
this._scaleAm.translateX(this._tX).step();
|
||
this.scaleAm = this._scaleAm.export();
|
||
}
|
||
// #endif
|
||
}
|
||
// #endif
|
||
}
|
||
}
|
||
</script>
|
||
|
||
<style>
|
||
@keyframes show {
|
||
0% {
|
||
opacity: 0
|
||
}
|
||
|
||
100% {
|
||
opacity: 1;
|
||
}
|
||
}
|
||
|
||
/* #ifdef MP-WEIXIN */
|
||
:host {
|
||
display: block;
|
||
overflow: scroll;
|
||
-webkit-overflow-scrolling: touch;
|
||
}
|
||
|
||
/* #endif */
|
||
</style>
|