daoji_h5/components/jyf-Parser/index.vue

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2024-03-21 05:53:51 +00:00
<!--
parser 主模块组件
github地址https://github.com/jin-yufeng/Parser
文档地址https://jin-yufeng.github.io/Parser
插件市场https://ext.dcloud.net.cn/plugin?id=805
authorJinYufeng
-->
<template>
<view>
<!--#ifdef H5-->
<slot v-if="!html && !nodes.length"></slot>
<div :id="'rtf' + uid" :style="(selectable ? 'user-select:text;-webkit-user-select:text;' : '') + (showWithAnimation ? ('opacity:0;' + showAnimation) : '')"></div>
<!--#endif-->
<!--#ifndef H5-->
<slot v-if="!html[0].name && !html[0].type && !nodes.length"></slot>
<!--#endif-->
<!--#ifdef MP-ALIPAY-->
<view class="_contain" :style="(selectable ? 'user-select:text;-webkit-user-select:text;' : '') + (showWithAnimation ? ('opacity:0;' + showAnimation) : '')">
<trees :nodes="nodes.length ? nodes : (html[0].name || html[0].type ? html : [])" :imgMode="imgMode" />
</view>
<!--#endif-->
<!--#ifndef MP-ALIPAY || H5-->
<trees class="_contain" :style="'display:block;' + (selectable ? 'user-select:text;-webkit-user-select:text;' : '') + (showWithAnimation ? ('opacity:0;' + showAnimation) : '')"
:nodes="nodes.length ? nodes : (html[0].name || html[0].type ? html : [])" :imgMode="imgMode" :loadVideo="loadVideo" />
<!--#endif-->
</view>
</template>
<script>
// #ifndef H5
import trees from "./trees"
var document; // document 补丁包,详见 https://jin-yufeng.github.io/Parser/#/instructions?id=document
const parseHtmlSync = require('./libs/MpHtmlParser.js').parseHtmlSync;
const cache = getApp().parserCache = {};
const CssHandler = require("./libs/CssHandler.js");
// 散列函数(计算 cache 的 key
const Hash = (str) => {
for (var i = 0, hash = 5381, len = str.length; i < len; i++)
hash += (hash << 5) + str.charCodeAt(i);
return hash;
};
// #endif
// 动画
const showAnimation =
"transition:400ms ease 0ms;transition-property:transform,opacity;transform-origin:50% 50% 0;-webkit-transition:400ms ease 0ms;-webkit-transform:;-webkit-transition-property:transform,opacity;-webkit-transform-origin:50% 50% 0;opacity: 1"
const config = require('./libs/config.js');
// #ifdef MP-WEIXIN || MP-QQ || MP-BAIDU || MP-TOUTIAO
// 图片链接去重
const Deduplication = (src) => {
if (src.indexOf("http") != 0) return src;
var newSrc = '';
for (var i = 0; i < src.length; i++) {
newSrc += (Math.random() >= 0.5 ? src[i].toUpperCase() : src[i].toLowerCase());
if (src[i] == '/' && src[i - 1] != '/' && src[i + 1] != '/') break;
}
newSrc += src.substring(i + 1);
return newSrc;
}
// #endif
export default {
name: 'parser',
data() {
return {
// #ifdef APP-PLUS
loadVideo: false,
// #endif
// #ifdef H5
uid: this._uid,
showAnimation: '',
// #endif
// #ifndef H5
showAnimation: {},
controls: {},
// #endif
nodes: []
}
},
// #ifndef H5
components: {
trees
},
// #endif
props: {
'html': {
type: null,
default: null
},
'autocopy': {
type: Boolean,
default: true
},
// #ifndef MP-ALIPAY
'autopause': {
type: Boolean,
default: true
},
// #endif
'autopreview': {
type: Boolean,
default: true
},
'autosetTitle': {
type: Boolean,
default: true
},
'domain': {
type: String,
default: null
},
'imgMode': {
type: String,
default: 'default'
},
// #ifdef MP-WEIXIN || MP-QQ || H5 || APP-PLUS
'lazyLoad': {
type: Boolean,
default: false
},
// #endif
'selectable': {
type: Boolean,
default: false
},
'tagStyle': {
type: Object,
default: () => {
return {};
}
},
'showWithAnimation': {
type: Boolean,
default: false
},
'useAnchor': {
type: Boolean,
default: false
},
'useCache': {
type: Boolean,
default: false
}
},
watch: {
html(html) {
this.setContent(html, undefined, true);
}
},
mounted() {
this.imgList = [];
this.imgList.each = function(f) {
for (var i = 0; i < this.length; i++) {
// #ifdef MP-ALIPAY || APP-PLUS
this[i] = f(this[i], i, this) || this[i];
// #endif
// #ifndef MP-ALIPAY || APP-PLUS
var newSrc = f(this[i], i, this);
if (newSrc) {
if (this.includes(newSrc)) this[i] = Deduplication(newSrc);
else this[i] = newSrc;
}
// #endif
}
}
this.setContent(this.html, undefined, true);
},
// #ifdef H5
beforeDestroy() {
if (this._observer) this._observer.disconnect();
},
// #endif
methods: {
// #ifdef H5
setContent(html, options, observed) {
if (typeof options == "object")
for (var key in options) {
key = key.replace(/-(\w)/g, function() {
return arguments[1].toUpperCase();
})
this[key] = options[key];
}
html = html || '';
if (!html) {
if (this.rtf) this.rtf.parentNode.removeChild(this.rtf);
return;
}
if (typeof html != 'string') html = this.Dom2Str(html.nodes || html);
// 处理 rpx
if (/[0-9.]*?rpx/.test(html)) {
const rpx = uni.getSystemInfoSync().screenWidth / 750;
html = html.replace(/([0-9.]*?)rpx/g, function() {
return parseFloat(arguments[1]) * rpx + "px";
})
}
// 处理 tag-style 和 userAgentStyles
var style = "<style>";
for (var item in config.userAgentStyles)
style += (item + '{' + config.userAgentStyles[item] + '}');
for (var item in this.tagStyle)
style += (item + '{' + this.tagStyle[item] + '}');
style += "</style>";
html = style + html;
if (this.rtf) this.rtf.parentNode.removeChild(this.rtf);
this.rtf = document.createElement('div');
this.rtf.innerHTML = html;
for (var style of this.rtf.getElementsByTagName("style")) {
style.innerHTML = style.innerHTML.replace(/\s*body/g, "#rtf" + this._uid);
style.setAttribute("scoped", "true");
}
// 懒加载
if (this.lazyLoad && IntersectionObserver) {
if (this._observer) this._observer.disconnect();
this._observer = new IntersectionObserver(changes => {
for (var change of changes) {
if (change.isIntersecting) {
change.target.src = change.target.getAttribute("data-src");
change.target.removeAttribute("data-src");
this._observer.unobserve(change.target);
}
}
}, {
rootMargin: "1000px 0px 1000px 0px"
})
}
var component = 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 (var i = 0; i < imgs.length; i++) {
var img = imgs[i];
img.style.maxWidth = "100%";
img.i = i;
if (this.domain && img.getAttribute("src")[0] == "/") {
if (img.getAttribute("src")[1] == "/")
img.src = (this.domain.includes("://") ? this.domain.split("://")[0] : "http") + ':' + img.getAttribute("src");
else img.src = this.domain + img.getAttribute("src");
}
component.imgList.push(img.src);
if (img.parentElement.nodeName != 'A') {
img.onclick = function() {
if (!this.hasAttribute('ignore')) {
var preview = true;
this.ignore = () => preview = false;
component.$emit('imgtap', this);
if (preview && component.autopreview) {
uni.previewImage({
current: this.i,
urls: component.imgList
});
}
}
}
}
img.onerror = function() {
component.$emit('error', {
source: "img",
target: this
});
}
if (component.lazyLoad && this._observer) {
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) {
var jump = true,
href = this.getAttribute("href");
component.$emit('linkpress', {
href,
ignore: () => jump = false
});
if (jump && href) {
if (href[0] == '#') {
if (component.useAnchor) {
component.navigateTo({
id: href.substring(1)
})
}
} else if (href.indexOf("http") == 0 || href.indexOf("//") == 0)
return true;
else {
uni.navigateTo({
url: href
})
}
}
return false;
}
}
// 视频处理
var videos = this.rtf.getElementsByTagName("video");
component.videoContexts = videos;
for (var video of videos) {
video.style.maxWidth = "100%";
video.onerror = function() {
component.$emit('error', {
source: "video",
target: this
});
}
video.onplay = function() {
if (component.autopause) {
for (var video of component.videoContexts) {
if (video != this)
video.pause();
}
}
}
}
// 音频处理
var audios = this.rtf.getElementsByTagName("audios");
for (var audio of audios) {
audio.onerror = function(e) {
component.$emit('error', {
source: "audio",
target: this
});
}
}
document.getElementById("rtf" + this._uid).appendChild(this.rtf);
if (this.showWithAnimation)
this.showAnimation = showAnimation;
if (!observed) this.nodes = [0];
this.$nextTick(() => {
this.$emit("ready", this.rtf.getBoundingClientRect());
})
},
Dom2Str(nodes) {
var str = "";
for (var node of nodes) {
if (node.type == "text")
str += node.text;
else {
str += ('<' + node.name);
for (var attr in node.attrs || {})
str += (' ' + attr + '="' + node.attrs[attr] + '"');
if (!node.children || !node.children.length) str += "/>";
else str += ('>' + this.Dom2Str(node.children) + "</" + node.name + '>');
}
}
return str;
},
getText(whiteSpace = true) {
if (!whiteSpace) return this.rtf.innerText.replace(/\s/g, '');
return this.rtf.innerText;
},
navigateTo(obj) {
if (!obj.id) {
window.scrollTo(0, this.rtf.offsetTop);
return obj.success ? obj.success({
errMsg: "pageScrollTo:ok"
}) : null;
}
var target = document.getElementById(obj.id);
if (!target) return obj.fail ? obj.fail({
errMsg: "Label Not Found"
}) : null;
uni.pageScrollTo({
scrollTop: this.rtf.offsetTop + target.offsetTop,
success: obj.success,
fail: obj.fail
});
},
// #endif
// #ifndef H5
setContent(html, options, observed) {
if (typeof options == "object")
for (var key in options) {
key = key.replace(/-(\w)/g, function() {
return arguments[1].toUpperCase();
})
this[key] = options[key];
}
if (this.showWithAnimation)
this.showAnimation = showAnimation;
if (!html) {
if (observed) return;
else this.nodes = [];
} else if (typeof html == "string") {
var res;
// 缓存读取
if (this.useCache) {
var hash = Hash(html);
if (cache[hash])
res = cache[hash];
else {
res = parseHtmlSync(html, this);
cache[hash] = res;
}
} else res = parseHtmlSync(html, this);
this.nodes = res;
this.$emit('parse', res);
} else if (html.constructor == Array) {
if (!observed) this.nodes = html;
else this.nodes = [];
// 非本插件产生的 array 需要进行一些转换
if (html.length && html[0].PoweredBy != "Parser") {
const Parser = {
_imgNum: 0,
_videoNum: 0,
_audioNum: 0,
_domain: this.domain,
_protocol: this.domain ? (this.domain.includes("://") ? this.domain.split("://")[0] : "http") : undefined,
_STACK: [],
CssHandler: new CssHandler(this.tagStyle)
};
Parser.CssHandler.getStyle('');
const DFS = (nodes) => {
for (var node of nodes) {
if (node.type == "text") continue;
node.attrs = node.attrs || {};
for (var item in node.attrs) {
if (!config.trustAttrs[item]) node.attrs[item] = undefined;
else if (typeof node.attrs[item] != "string") node.attrs[item] = node.attrs[item].toString();
}
config.LabelAttrsHandler(node, Parser);
if (config.blockTags[node.name]) node.name = 'div';
else if (!config.trustTags[node.name]) node.name = 'span';
if (node.children && node.children.length) {
Parser._STACK.push(node);
DFS(node.children);
Parser._STACK.pop();
} else node.children = undefined;
}
}
DFS(html);
this.nodes = html;
}
} else if (typeof html == 'object' && html.nodes) {
this.nodes = html.nodes;
console.warn("Parser 类型错误object 类型已废弃,请直接将 html 设置为 object.nodes array 类型)");
} else {
return this.$emit('error', {
source: "parse",
errMsg: "传入的nodes数组格式不正确应该传入的类型是array实际传入的类型是" + typeof html.nodes
});
}
// #ifdef APP-PLUS
this.loadVideo = false;
// #endif
if (document) this.document = new document("html", this.html || html, this);
this.$nextTick(() => {
this.imgList.length = 0;
this.videoContexts = [];
const getContext = (components) => {
for (let component of components) {
if (component.$options.name == "trees") {
var observered = false;
for (var item of component.nodes) {
if (item.continue) continue;
if (item.name == 'img') {
if (item.attrs.src && item.attrs.i) {
// #ifndef MP-ALIPAY || APP-PLUS
if (this.imgList.indexOf(item.attrs.src) == -1)
this.imgList[item.attrs.i] = item.attrs.src;
else this.imgList[item.attrs.i] = Deduplication(item.attrs.src);
// #endif
// #ifdef MP-ALIPAY || APP-PLUS
this.imgList[item.attrs.i] = item.attrs.src;
// #endif
}
// #ifndef MP-ALIPAY
if (!observered) {
observered = true;
if (this.lazyLoad && uni.createIntersectionObserver) {
if (component._observer) component._observer.disconnect();
component._observer = uni.createIntersectionObserver(component);
component._observer.relativeToViewport({
top: 1000,
bottom: 1000
}).observe('.img', res => {
component.imgLoad = true;
component._observer.disconnect();
component._observer = null;
})
} else
component.imgLoad = true;
}
// #endif
}
// #ifndef MP-ALIPAY
else if (item.name == 'video') {
var context = uni.createVideoContext(item.attrs.id, component);
context.id = item.attrs.id;
this.videoContexts.push(context);
}
// #endif
// #ifdef MP-WEIXIN
else if (item.name == 'audio' && item.attrs.autoplay)
wx.createAudioContext(item.attrs.id, component).play();
// #endif
// 设置标题
else if (item.name == "title") {
if (item.children[0].type == "text" && item.children[0].text && this.autosetTitle)
uni.setNavigationBarTitle({
title: item.children[0].text
})
}
// #ifdef MP-BAIDU || MP-ALIPAY
if (item.attrs && item.attrs.id) {
this.anchors = this.anchors || [];
this.anchors.push({
id: item.attrs.id,
node: component
})
}
// #endif
}
}
if (component.$children.length)
getContext(component.$children)
}
}
// #ifdef MP-TOUTIAO
setTimeout(() => {
// #endif
getContext(this.$children)
uni.createSelectorQuery().in(this).select("._contain").boundingClientRect(res => {
this.$emit("ready", res);
}).exec();
// #ifdef MP-TOUTIAO
}, 200)
// #endif
// #ifdef APP-PLUS
setTimeout(() => {
this.loadVideo = true;
}, 3000);
// #endif
})
},
getText(whiteSpace = true) {
var text = "";
const DFS = (node) => {
if (node.type == "text") return text += node.text;
else {
if (whiteSpace && (((node.name == 'p' || node.name == "div" || node.name == "tr" || node.name == "li" ||
/h[1-6]/.test(node.name)) && text && text[text.length - 1] != '\n') || node.name == "br"))
text += '\n';
for (var child of node.children || [])
DFS(child);
if (whiteSpace && (node.name == 'p' || node.name == "div" || node.name == "tr" || node.name == "li" || /h[1-6]/.test(
node.name)) && text && text[text.length - 1] != '\n')
text += '\n';
else if (whiteSpace && node.name == "td") text += '\t';
}
}
var nodes = ((this.nodes && this.nodes.length) ? this.nodes : (this.html[0] && (this.html[0].name || this.html[0].type) ?
this.html : []));
if (!nodes.length) return "";
for (var node of nodes)
DFS(node);
return text;
},
navigateTo(obj) {
var Scroll = (selector, component) => {
const query = uni.createSelectorQuery().in(component ? component : this);
query.select(selector).boundingClientRect();
query.selectViewport().scrollOffset();
query.exec(res => {
if (!res || !res[0])
return obj.fail ? obj.fail({
errMsg: "Label Not Found"
}) : null;
uni.pageScrollTo({
scrollTop: res[1].scrollTop + res[0].top,
success: obj.success,
fail: obj.fail
})
})
}
if (!obj.id) Scroll("._contain");
else {
// #ifndef MP-BAIDU || MP-ALIPAY
Scroll('._contain >>> #' + obj.id + ', ._contain >>> .' + obj.id);
// #endif
// #ifdef MP-BAIDU || MP-ALIPAY
for (var anchor of this.anchors) {
if (anchor.id == obj.id) {
Scroll("#" + obj.id + ", ." + obj.id, anchor.node);
}
}
// #endif
}
},
// #endif
getVideoContext(id) {
if (!id) return this.videoContexts;
else {
for (var video of this.videoContexts) {
if (video.id == id) return video;
}
}
return null;
}
}
}
</script>
<style>
/* #ifndef MP-BAIDU */
:host {
display: block;
overflow: scroll;
-webkit-overflow-scrolling: touch;
}
/* #endif */
</style>