地址替换

zengh

2022-06-21 4efeb31d5b4921d7e851c256009486ad86bc70e2

 uview-ui/components/u-parse/u-parse.vue

New file
@@ -0,0 +1,645 @@
<template>
   <view>
      <slot v-if="!nodes.length" />
      <!--#ifdef APP-PLUS-NVUE-->
      <web-view id="_top" ref="web" :style="'margin-top:-2px;height:'+height+'px'" @onPostMessage="_message" />
      <!--#endif-->
      <!--#ifndef APP-PLUS-NVUE-->
      <view id="_top" :style="showAm+(selectable?';user-select:text;-webkit-user-select:text':'')">
         <!--#ifdef H5 || MP-360-->
         <div :id="'rtf'+uid"></div>
         <!--#endif-->
         <!--#ifndef H5 || MP-360-->
         <trees :nodes="nodes" :lazyLoad="lazyLoad" :loading="loadingImg" />
         <!--#endif-->
      </view>
      <!--#endif-->
   </view>
</template>

<script>
   var search;
   // #ifndef H5 || APP-PLUS-NVUE || MP-360
   import trees from './libs/trees';
   var cache = {},
      // #ifdef MP-WEIXIN || MP-TOUTIAO
      fs = uni.getFileSystemManager ? uni.getFileSystemManager() : null,
      // #endif
      Parser = require('./libs/MpHtmlParser.js');
   var dom;
   // 计算 cache 的 key
   function hash(str) {
      for (var i = str.length, val = 5381; i--;)
         val += (val << 5) + str.charCodeAt(i);
      return val;
   }
   // #endif
   // #ifdef H5 || APP-PLUS-NVUE || MP-360
   var {
      windowWidth,
      platform
   } = uni.getSystemInfoSync(),
      cfg = require('./libs/config.js');
   // #endif
   // #ifdef APP-PLUS-NVUE
   var weexDom = weex.requireModule('dom');
   // #endif
   /**
    * Parser 富文本组件
    * @tutorial https://github.com/jin-yufeng/Parser
    * @property {String} html 富文本数据
    * @property {Boolean} autopause 是否在播放一个视频时自动暂停其他视频
    * @property {Boolean} autoscroll 是否自动给所有表格添加一个滚动层
    * @property {Boolean} autosetTitle 是否自动将 title 标签中的内容设置到页面标题
    * @property {Number} compress 压缩等级
    * @property {String} domain 图片、视频等链接的主域名
    * @property {Boolean} lazyLoad 是否开启图片懒加载
    * @property {String} loadingImg 图片加载完成前的占位图
    * @property {Boolean} selectable 是否开启长按复制
    * @property {Object} tagStyle 标签的默认样式
    * @property {Boolean} showWithAnimation 是否使用渐显动画
    * @property {Boolean} useAnchor 是否使用锚点
    * @property {Boolean} useCache 是否缓存解析结果
    * @event {Function} parse 解析完成事件
    * @event {Function} load dom 加载完成事件
    * @event {Function} ready 所有图片加载完毕事件
    * @event {Function} error 错误事件
    * @event {Function} imgtap 图片点击事件
    * @event {Function} linkpress 链接点击事件
    * @author JinYufeng
    * @version 20201029
    * @listens MIT
    */
   export default {
      name: 'parser',
      data() {
         return {
            // #ifdef H5 || MP-360
            uid: this._uid,
            // #endif
            // #ifdef APP-PLUS-NVUE
            height: 1,
            // #endif
            // #ifndef APP-PLUS-NVUE
            showAm: '',
            // #endif
            nodes: []
         }
      },
      // #ifndef H5 || APP-PLUS-NVUE || MP-360
      components: {
         trees
      },
      // #endif
      props: {
         html: String,
         autopause: {
            type: Boolean,
            default: true
         },
         autoscroll: Boolean,
         autosetTitle: {
            type: Boolean,
            default: true
         },
         // #ifndef H5 || APP-PLUS-NVUE || MP-360
         compress: Number,
         loadingImg: String,
         useCache: Boolean,
         // #endif
         domain: String,
         lazyLoad: Boolean,
         selectable: Boolean,
         tagStyle: Object,
         showWithAnimation: Boolean,
         useAnchor: Boolean
      },
      watch: {
         html(html) {
            this.setContent(html);
         }
      },
      created() {
         // 图片数组
         this.imgList = [];
         this.imgList.each = function(f) {
            for (var i = 0, len = this.length; i < len; i++)
               this.setItem(i, f(this[i], i, this));
         }
         this.imgList.setItem = function(i, src) {
            if (i == void 0 || !src) return;
            // #ifndef MP-ALIPAY || APP-PLUS
            // 去重
            if (src.indexOf('http') == 0 && this.includes(src)) {
               var newSrc = src.split('://')[0];
               for (var j = newSrc.length, c; c = src[j]; j++) {
                  if (c == '/' && src[j - 1] != '/' && src[j + 1] != '/') break;
                  newSrc += Math.random() > 0.5 ? c.toUpperCase() : c;
               }
               newSrc += src.substr(j);
               return this[i] = newSrc;
            }
            // #endif
            this[i] = src;
            // 暂存 data src
            if (src.includes('data:image')) {
               var filePath, info = src.match(/data:image\/(\S+?);(\S+?),(.+)/);
               if (!info) return;
               // #ifdef MP-WEIXIN || MP-TOUTIAO
               filePath = `${wx.env.USER_DATA_PATH}/${Date.now()}.${info[1]}`;
               fs && fs.writeFile({
                  filePath,
                  data: info[3],
                  encoding: info[2],
                  success: () => this[i] = filePath
               })
               // #endif
               // #ifdef APP-PLUS
               filePath = `_doc/parser_tmp/${Date.now()}.${info[1]}`;
               var bitmap = new plus.nativeObj.Bitmap();
               bitmap.loadBase64Data(src, () => {
                  bitmap.save(filePath, {}, () => {
                     bitmap.clear()
                     this[i] = filePath;
                  })
               })
               // #endif
            }
         }
      },
      mounted() {
         // #ifdef H5 || MP-360
         this.document = document.getElementById('rtf' + this._uid);
         // #endif
         // #ifndef H5 || APP-PLUS-NVUE || MP-360
         if (dom) this.document = new dom(this);
         // #endif
         if (search) this.search = args => search(this, args);
         // #ifdef APP-PLUS-NVUE
         this.document = this.$refs.web;
         setTimeout(() => {
            // #endif
            if (this.html) this.setContent(this.html);
            // #ifdef APP-PLUS-NVUE
         }, 30)
         // #endif
      },
      beforeDestroy() {
         // #ifdef H5 || MP-360
         if (this._observer) this._observer.disconnect();
         // #endif
         this.imgList.each(src => {
            // #ifdef APP-PLUS
            if (src && src.includes('_doc')) {
               plus.io.resolveLocalFileSystemURL(src, entry => {
                  entry.remove();
               });
            }
            // #endif
            // #ifdef MP-WEIXIN || MP-TOUTIAO
            if (src && src.includes(uni.env.USER_DATA_PATH))
               fs && fs.unlink({
                  filePath: src
               })
            // #endif
         })
         clearInterval(this._timer);
      },
      methods: {
         // 设置富文本内容
         setContent(html, append) {
            // #ifdef APP-PLUS-NVUE
            if (!html)
               return this.height = 1;
            if (append)
               this.$refs.web.evalJs("var b=document.createElement('div');b.innerHTML='" + html.replace(/'/g, "\\'") +
                  "';document.getElementById('parser').appendChild(b)");
            else {
               html =
                  '<meta charset="utf-8" /><meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no"><style>html,body{width:100%;height:100%;overflow:hidden}body{margin:0}</style><base href="' +
                  this.domain + '"><div id="parser"' + (this.selectable ? '>' : ' style="user-select:none">') + this._handleHtml(html).replace(/\n/g, '\\n') +
                  '</div><script>"use strict";function e(e){if(window.__dcloud_weex_postMessage||window.__dcloud_weex_){var t={data:[e]};window.__dcloud_weex_postMessage?window.__dcloud_weex_postMessage(t):window.__dcloud_weex_.postMessage(JSON.stringify(t))}}document.body.onclick=function(){e({action:"click"})},' +
                  (this.showWithAnimation ? 'document.body.style.animation="_show .5s",' : '') +
                  'setTimeout(function(){e({action:"load",text:document.body.innerText,height:document.getElementById("parser").scrollHeight})},50);\x3c/script>';
               if (platform == 'android') html = html.replace(/%/g, '%25');
               this.$refs.web.evalJs("document.write('" + html.replace(/'/g, "\\'") + "');document.close()");
            }
            this.$refs.web.evalJs(
               'var t=document.getElementsByTagName("title");t.length&&e({action:"getTitle",title:t[0].innerText});for(var o,n=document.getElementsByTagName("style"),r=1;o=n[r++];)o.innerHTML=o.innerHTML.replace(/body/g,"#parser");for(var a,c=document.getElementsByTagName("img"),s=[],i=0==c.length,d=0,l=0,g=0;a=c[l];l++)parseInt(a.style.width||a.getAttribute("width"))>' +
               windowWidth + '&&(a.style.height="auto"),a.onload=function(){++d==c.length&&(i=!0)},a.onerror=function(){++d==c.length&&(i=!0),' + (cfg.errorImg ? 'this.src="' + cfg.errorImg + '",' : '') +
               'e({action:"error",source:"img",target:this})},a.hasAttribute("ignore")||"A"==a.parentElement.nodeName||(a.i=g++,s.push(a.getAttribute("original-src")||a.src||a.getAttribute("data-src")),a.onclick=function(t){t.stopPropagation(),e({action:"preview",img:{i:this.i,src:this.src}})});e({action:"getImgList",imgList:s});for(var u,m=document.getElementsByTagName("a"),f=0;u=m[f];f++)u.onclick=function(m){m.stopPropagation();var t,o=this.getAttribute("href");if("#"==o[0]){var n=document.getElementById(o.substr(1));n&&(t=n.offsetTop)}return e({action:"linkpress",href:o,offset:t}),!1};for(var h,y=document.getElementsByTagName("video"),v=0;h=y[v];v++)h.style.maxWidth="100%",h.onerror=function(){e({action:"error",source:"video",target:this})}' +
               (this.autopause ? ',h.onplay=function(){for(var e,t=0;e=y[t];t++)e!=this&&e.pause()}' : '') +
               ';for(var _,p=document.getElementsByTagName("audio"),w=0;_=p[w];w++)_.onerror=function(){e({action:"error",source:"audio",target:this})};' +
               (this.autoscroll ? 'for(var T,E=document.getElementsByTagName("table"),B=0;T=E[B];B++){var N=document.createElement("div");N.style.overflow="scroll",T.parentNode.replaceChild(N,T),N.appendChild(T)}' : '') +
               'var x=document.getElementById("parser");clearInterval(window.timer),window.timer=setInterval(function(){i&&clearInterval(window.timer),e({action:"ready",ready:i,height:x.scrollHeight})},350)'
            )
            this.nodes = [1];
            // #endif
            // #ifdef H5 || MP-360
            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: '500px 0px 500px 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
               })
            // 填充 domain
            var fill = target => {
               var src = target.getAttribute('src');
               if (this.domain && src) {
                  if (src[0] == '/') {
                     if (src[1] == '/')
                        target.src = (this.domain.includes('://') ? this.domain.split('://')[0] : '') + ':' + src;
                     else target.src = this.domain + src;
                  } else if (!src.includes('://') && src.indexOf('data:') != 0) target.src = this.domain + '/' + src;
               }
            }
            // 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++) {
               if (parseInt(img.style.width || img.getAttribute('width')) > windowWidth)
                  img.style.height = 'auto';
               fill(img);
               if (!img.hasAttribute('ignore') && img.parentElement.nodeName != 'A') {
                  img.i = j++;
                  _ts.imgList.push(img.getAttribute('original-src') || img.src || img.getAttribute('data-src'));
                  img.onclick = function(e) {
                     e.stopPropagation();
                     var preview = true;
                     this.ignore = () => preview = false;
                     _ts.$emit('imgtap', this);
                     if (preview) {
                        uni.previewImage({
                           current: this.i,
                           urls: _ts.imgList
                        });
                     }
                  }
               }
               img.onerror = function() {
                  if (cfg.errorImg)
                     _ts.imgList[this.i] = this.src = cfg.errorImg;
                  _ts.$emit('error', {
                     source: 'img',
                     target: this
                  });
               }
               if (_ts.lazyLoad && this._observer && img.src && img.i != 0) {
                  img.setAttribute('data-src', img.src);
                  img.removeAttribute('src');
                  this._observer.observe(img);
               }
            }
            // 链接处理
            var links = this.rtf.getElementsByTagName('a');
            for (var link of links) {
               link.onclick = function(e) {
                  e.stopPropagation();
                  var jump = true,
                     href = this.getAttribute('href');
                  _ts.$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++];) {
               fill(video);
               video.style.maxWidth = '100%';
               video.onerror = function() {
                  _ts.$emit('error', {
                     source: 'video',
                     target: this
                  });
               }
               video.onplay = function() {
                  if (_ts.autopause)
                     for (let item, i = 0; item = _ts.videoContexts[i++];)
                        if (item != this) item.pause();
               }
            }
            // 音频处理
            var audios = this.rtf.getElementsByTagName('audio');
            for (var audio of audios) {
               fill(audio);
               audio.onerror = function() {
                  _ts.$emit('error', {
                     source: 'audio',
                     target: this
                  });
               }
            }
            // 表格处理
            if (this.autoscroll) {
               var tables = this.rtf.getElementsByTagName('table');
               for (var table of tables) {
                  let div = document.createElement('div');
                  div.style.overflow = 'scroll';
                  table.parentNode.replaceChild(div, table);
                  div.appendChild(table);
               }
            }
            if (!append) this.document.appendChild(this.rtf);
            this.$nextTick(() => {
               this.nodes = [1];
               this.$emit('load');
            });
            setTimeout(() => this.showAm = '', 500);
            // #endif
            // #ifndef APP-PLUS-NVUE
            // #ifndef H5 || MP-360
            var nodes;
            if (!html) return this.nodes = [];
            var 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.$emit('parse', nodes);
            if (append) this.nodes = this.nodes.concat(nodes);
            else this.nodes = nodes;
            if (nodes.length && nodes.title && this.autosetTitle)
               uni.setNavigationBarTitle({
                  title: nodes.title
               })
            if (this.imgList) this.imgList.length = 0;
            this.videoContexts = [];
            this.$nextTick(() => {
               (function f(cs) {
                  for (var i = cs.length; i--;) {
                     if (cs[i].top) {
                        cs[i].controls = [];
                        cs[i].init();
                        f(cs[i].$children);
                     }
                  }
               })(this.$children)
               this.$emit('load');
            })
            // #endif
            var height;
            clearInterval(this._timer);
            this._timer = setInterval(() => {
               // #ifdef H5 || MP-360
               this.rect = this.rtf.getBoundingClientRect();
               // #endif
               // #ifndef H5 || MP-360
               uni.createSelectorQuery().in(this)
                  .select('#_top').boundingClientRect().exec(res => {
                     if (!res) return;
                     this.rect = res[0];
                     // #endif
                     if (this.rect.height == height) {
                        this.$emit('ready', this.rect)
                        clearInterval(this._timer);
                     }
                     height = this.rect.height;
                     // #ifndef H5 || MP-360
                  });
               // #endif
            }, 350);
            if (this.showWithAnimation && !append) this.showAm = 'animation:_show .5s';
            // #endif
         },
         // 获取文本内容
         getText(ns = this.nodes) {
            var txt = '';
            // #ifdef APP-PLUS-NVUE
            txt = this._text;
            // #endif
            // #ifdef H5 || MP-360
            txt = this.rtf.innerText;
            // #endif
            // #ifndef H5 || APP-PLUS-NVUE || MP-360
            for (var i = 0, n; n = ns[i++];) {
               if (n.type == 'text') txt += n.text.replace(/&nbsp;/g, '\u00A0').replace(/&lt;/g, '<').replace(/&gt;/g, '>')
                  .replace(/&amp;/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';
               }
            }
            // #endif
            return txt;
         },
         // 锚点跳转
         in (obj) {
            if (obj.page && obj.selector && obj.scrollTop) this._in = obj;
         },
         navigateTo(obj) {
            if (!this.useAnchor) return obj.fail && obj.fail('Anchor is disabled');
            // #ifdef APP-PLUS-NVUE
            if (!obj.id)
               weexDom.scrollToElement(this.$refs.web);
            else
               this.$refs.web.evalJs('var pos=document.getElementById("' + obj.id +
                  '");if(pos)post({action:"linkpress",href:"#",offset:pos.offsetTop+' + (obj.offset || 0) + '})');
            obj.success && obj.success();
            // #endif
            // #ifndef APP-PLUS-NVUE
            var d = ' ';
            // #ifdef MP-WEIXIN || MP-QQ || MP-TOUTIAO
            d = '>>>';
            // #endif
            var selector = uni.createSelectorQuery().in(this._in ? this._in.page : this).select((this._in ? this._in.selector :
               '#_top') + (obj.id ? `${d}#${obj.id},${this._in?this._in.selector:'#_top'}${d}.${obj.id}` : '')).boundingClientRect();
            if (this._in) selector.select(this._in.selector).scrollOffset().select(this._in.selector).boundingClientRect();
            else selector.selectViewport().scrollOffset();
            selector.exec(res => {
               if (!res[0]) return obj.fail && obj.fail('Label not found')
               var scrollTop = res[1].scrollTop + res[0].top - (res[2] ? res[2].top : 0) + (obj.offset || 0);
               if (this._in) this._in.page[this._in.scrollTop] = scrollTop;
               else uni.pageScrollTo({
                  scrollTop,
                  duration: 300
               })
               obj.success && obj.success();
            })
            // #endif
         },
         // 获取视频对象
         getVideoContext(id) {
            // #ifndef APP-PLUS-NVUE
            if (!id) return this.videoContexts;
            else
               for (var i = this.videoContexts.length; i--;)
                  if (this.videoContexts[i].id == id) return this.videoContexts[i];
            // #endif
         },
         // #ifdef H5 || APP-PLUS-NVUE || MP-360
         _handleHtml(html, append) {
            if (!append) {
               // 处理 tag-style 和 userAgentStyles
               var style = '<style>@keyframes _show{0%{opacity:0}100%{opacity:1}}img{max-width:100%}';
               for (var item in cfg.userAgentStyles)
                  style += `${item}{${cfg.userAgentStyles[item]}}`;
               for (item in this.tagStyle)
                  style += `${item}{${this.tagStyle[item]}}`;
               style += '</style>';
               html = style + html;
            }
            // 处理 rpx
            if (html.includes('rpx'))
               html = html.replace(/[0-9.]+\s*rpx/g, $ => (parseFloat($) * windowWidth / 750) + 'px');
            return html;
         },
         // #endif
         // #ifdef APP-PLUS-NVUE
         _message(e) {
            // 接收 web-view 消息
            var d = e.detail.data[0];
            switch (d.action) {
               case 'load':
                  this.$emit('load');
                  this.height = d.height;
                  this._text = d.text;
                  break;
               case 'getTitle':
                  if (this.autosetTitle)
                     uni.setNavigationBarTitle({
                        title: d.title
                     })
                  break;
               case 'getImgList':
                  this.imgList.length = 0;
                  for (var i = d.imgList.length; i--;)
                     this.imgList.setItem(i, d.imgList[i]);
                  break;
               case 'preview':
                  var preview = true;
                  d.img.ignore = () => preview = false;
                  this.$emit('imgtap', d.img);
                  if (preview)
                     uni.previewImage({
                        current: d.img.i,
                        urls: this.imgList
                     })
                  break;
               case 'linkpress':
                  var jump = true,
                     href = d.href;
                  this.$emit('linkpress', {
                     href,
                     ignore: () => jump = false
                  })
                  if (jump && href) {
                     if (href[0] == '#') {
                        if (this.useAnchor)
                           weexDom.scrollToElement(this.$refs.web, {
                              offset: d.offset
                           })
                     } else if (href.includes('://'))
                        plus.runtime.openWeb(href);
                     else
                        uni.navigateTo({
                           url: href
                        })
                  }
                  break;
               case 'error':
                  if (d.source == 'img' && cfg.errorImg)
                     this.imgList.setItem(d.target.i, cfg.errorImg);
                  this.$emit('error', {
                     source: d.source,
                     target: d.target
                  })
                  break;
               case 'ready':
                  this.height = d.height;
                  if (d.ready) uni.createSelectorQuery().in(this).select('#_top').boundingClientRect().exec(res => {
                     this.rect = res[0];
                     this.$emit('ready', res[0]);
                  })
                  break;
               case 'click':
                  this.$emit('click');
                  this.$emit('tap');
            }
         },
         // #endif
      }
   }
</script>

<style>
   @keyframes _show {
      0% {
         opacity: 0;
      }

      100% {
         opacity: 1;
      }
   }

   /* #ifdef MP-WEIXIN */
   :host {
      display: block;
      overflow: auto;
      -webkit-overflow-scrolling: touch;
   }

   /* #endif */
</style>