shop-live/components/jyf-parser/jyf-parser.vue

816 lines
25 KiB
Vue
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

<!--
parser 主模块组件
githubhttps://github.com/jin-yufeng/Parser
docshttps://jin-yufeng.github.io/Parser
插件市场https://ext.dcloud.net.cn/plugin?id=805
authorJinYufeng
update2020/04/14
-->
<template>
<view>
<slot v-if="!nodes.length" />
<!--#ifdef APP-PLUS-NVUE-->
<web-view id="top" ref="web" :src="src" :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':'')" :animation="scaleAm" @tap="_tap"
@touchstart="_touchstart" @touchmove="_touchmove">
<!--#ifdef H5-->
<div :id="'rtf'+uid"></div>
<!--#endif-->
<!--#ifndef H5-->
<trees :nodes="nodes" :lazy-load="lazyLoad" :loadVideo="loadVideo" />
<image v-for="(item, index) in imgs" v-bind:key="index" :id="index" :src="item" hidden @load="_load" />
<!--#endif-->
<image v-for="(item, index) in imgs" v-bind:key="index" :id="index" :src="item" hidden @load="_load" />
</view>
<!--#endif-->
</view>
</template>
<script>
// #ifndef H5 || APP-PLUS-NVUE
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 document; // document 补丁包 https://jin-yufeng.github.io/Parser/#/instructions?id=document
// 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
var rpx = uni.getSystemInfoSync().screenWidth / 750,
cfg = require('./libs/config.js');
// #endif
// #ifdef APP-PLUS-NVUE
var dom = weex.requireModule('dom');
// #endif
export default {
name: 'parser',
data() {
return {
// #ifdef APP-PLUS
loadVideo: false,
// #endif
// #ifdef H5
uid: this._uid,
// #endif
// #ifdef APP-PLUS-NVUE
src: '',
height: 1,
// #endif
// #ifndef APP-PLUS-NVUE
scaleAm: '',
showAm: '',
imgs: [],
// #endif
nodes: []
}
},
// #ifndef H5 || APP-PLUS-NVUE
components: {
trees
},
// #endif
props: {
'html': null,
// #ifndef MP-ALIPAY
'autopause': {
type: Boolean,
default: true
},
// #endif
'autosetTitle': {
type: Boolean,
default: true
},
// #ifndef H5 || APP-PLUS-NVUE
'compress': Number,
'useCache': Boolean,
'xml': Boolean,
// #endif
'domain': String,
// #ifndef MP-BAIDU || MP-ALIPAY || APP-PLUS
'gestureZoom': Boolean,
// #endif
// #ifdef MP-WEIXIN || MP-QQ || H5 || APP-PLUS
'lazyLoad': Boolean,
// #endif
'selectable': Boolean,
'tagStyle': Object,
'showWithAnimation': Boolean,
'useAnchor': Boolean
},
watch: {
html(html) {
this.setContent(html);
}
},
mounted() {
// 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 = '';
for (var j = 0, 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
}
}
if (this.html) this.setContent(this.html);
},
beforeDestroy() {
// #ifdef H5
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: {
// #ifdef H5 || APP-PLUS-NVUE
_Dom2Str(nodes) {
var str = '';
for (var node of nodes) {
if (node.type == 'text')
str += node.text;
else {
str += ('<' + node.name);
for (var attr in node.attrs || {})
str += (' ' + attr + '="' + node.attrs[attr] + '"');
if (!node.children || !node.children.length) str += '>';
else str += ('>' + this._Dom2Str(node.children) + '</' + node.name + '>');
}
}
return str;
},
_handleHtml(html, append) {
if (typeof html != 'string') html = this._Dom2Str(html.nodes || html);
// 处理 rpx
if (html.includes('rpx'))
html = html.replace(/[0-9.]+\s*rpx/g, $ => parseFloat($) * rpx + 'px');
if (!append) {
// 处理 tag-style 和 userAgentStyles
var style = '<style>@keyframes show{0%{opacity:0}100%{opacity:1}}';
for (var item in cfg.userAgentStyles)
style += `${item}{${cfg.userAgentStyles[item]}}`;
for (item in this.tagStyle)
style += `${item}{${this.tagStyle[item]}}`;
style += '</style>';
html = style + html;
}
return html;
},
// #endif
setContent(html, append) {
// #ifdef APP-PLUS-NVUE
if (!html) {
this.src = '';
this.height = 1;
return;
}
if (append) return;
plus.io.resolveLocalFileSystemURL('_doc', entry => {
entry.getDirectory('parser_tmp', {
create: true
}, entry => {
var fileName = Date.now() + '.html';
entry.getFile(fileName, {
create: true
}, entry => {
entry.createWriter(writer => {
writer.onwriteend = () => {
this.nodes = [1];
this.src = '_doc/parser_tmp/' + fileName;
this.$nextTick(function() {
entry.remove();
})
}
html =
'<meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1' +
(this.selectable ? '' : ',user-scalable=no') +
'"><script type="text/javascript" src="https://js.cdn.aliyun.dcloud.net.cn/dev/uni-app/uni.webview.1.5.2.js"></' +
'script><base href="' + this.domain + '">' + this._handleHtml(html) +
'<script>"use strict";function post(t){uni.postMessage({data:t})}' +
(this.showWithAnimation ? 'document.body.style.animation="show .5s",' : '') +
'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()}' : '') +
';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
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.$emit('ready', res[0])
clearInterval(this._timer);
}
height = res[0].height;
// #ifndef H5
});
// #endif
}, 350)
if (this.showWithAnimation && !append) this.showAm = 'animation:show .5s';
// #endif
},
getText(ns = this.nodes) {
// #ifdef APP-PLUS-NVUE
return this._text;
// #endif
// #ifdef H5
return this.rtf.innerText;
// #endif
// #ifndef H5 || APP-PLUS-NVUE
var txt = '';
for (var i = 0, n; n = ns[i++];) {
if (n.type == 'text') txt += n.text.replace(/&nbsp;/g, '\u00A0').replace(/&lt;/g, '<').replace(/&gt;/g, '>')
.replace(/&amp;/g, '&');
else if (n.type == 'br') txt += '\n';
else {
// 块级标签前后加换行
var block = n.name == 'p' || n.name == 'div' || n.name == 'tr' || n.name == 'li' || (n.name[0] == 'h' && n.name[1] >
'0' && n.name[1] < '7');
if (block && txt && txt[txt.length - 1] != '\n') txt += '\n';
if (n.children) txt += this.getText(n.children);
if (block && txt[txt.length - 1] != '\n') txt += '\n';
else if (n.name == 'td' || n.name == 'th') txt += '\t';
}
}
return txt;
// #endif
},
navigateTo(obj) {
if (!this.useAnchor)
return obj.fail && obj.fail({
errMsg: 'Anchor is disabled'
})
// #ifdef APP-PLUS-NVUE
if (!obj.id)
dom.scrollToElement(this.$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>