252 lines
8.6 KiB
JavaScript
252 lines
8.6 KiB
JavaScript
/* 配置文件 */
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function makeMap(str) {
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var map = Object.create(null),
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list = str.split(',');
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for (var item of list)
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map[item] = true;
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return map;
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}
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// 信任的属性列表，不在列表中的属性将被移除
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const trustAttrs = makeMap(
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"align,alt,app-id,appId,"
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// #ifdef MP-BAIDU
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+
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"appid,apid,"
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// #endif
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+
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"author,autoplay,border,cellpadding,cellspacing,class,color,colspan,controls,data-src,dir,face,height,href,id,ignore,loop,muted,name,path,poster,rowspan,size,span,src,start,style,type,lbType,lbtype,"
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// #ifdef MP-WEIXIN || MP-QQ
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+
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"unit-id,unitId,"
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// #endif
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+
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"width,xmlns"
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);
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// 信任的标签，将保持标签名不变
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const trustTags = makeMap(
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"a,abbr,ad,audio,b,blockquote,br,code,col,colgroup,dd,del,dl,dt,div,em,fieldset,h1,h2,h3,h4,h5,h6,hr,i,img,ins,label,legend,li,ol,p,q,source,span,strong,sub,sup,table,tbody,td,tfoot,th,thead,tr,title,u,ul,video,iframe"
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);
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// 块级标签，将被转为 div
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const blockTags = makeMap("address,article,aside,body,center,cite,footer,header,html,nav,pre,section");
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// 被移除的标签（其中 svg 系列标签会被转为图片）
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const ignoreTags = makeMap(
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"area,base,basefont,canvas,circle,command,ellipse,embed,frame,head,input,isindex,keygen,line,link,map,meta,param,path,polygon,rect,script,source,svg,textarea,track,use,wbr,"
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);
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// 只能用 rich-text 显示的标签（其中图片不能预览、不能显示视频、音频等）
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const richOnlyTags = makeMap(
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"a,ad,audio,colgroup,fieldset,legend,li,ol,sub,sup,table,tbody,td,tfoot,th,thead,tr,ul,video,iframe,");
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// 自闭合标签
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const selfClosingTags = makeMap(
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"area,base,basefont,br,col,circle,ellipse,embed,frame,hr,img,input,isindex,keygen,line,link,meta,param,path,polygon,rect,source,track,use,wbr,"
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);
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// 默认的标签样式
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var userAgentStyles = {
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a: "color:#366092;word-break:break-all;padding:1.5px 0 1.5px 0",
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address: "font-style:italic",
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blockquote: "background-color:#f6f6f6;border-left:3px solid #dbdbdb;color:#6c6c6c;padding:5px 0 5px 10px",
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center: "text-align:center",
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cite: "font-style:italic",
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code: "padding:0 1px 0 1px;margin-left:2px;margin-right:2px;background-color:#f8f8f8;border-radius:3px",
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dd: "margin-left:40px",
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img: "max-width:100%",
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mark: "background-color:yellow",
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pre: "font-family:monospace;white-space:pre;overflow:scroll",
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s: "text-decoration:line-through",
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u: "text-decoration:underline"
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};
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// #ifndef MP-ALIPAY || H5
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const SDKVersion = uni.getSystemInfoSync().SDKVersion;
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function versionHigherThan(version = '') {
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var v1 = SDKVersion.split('.'),
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v2 = version.split('.');
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while (v1.length != v2.length)
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v1.length < v2.length ? v1.push('0') : v2.push('0');
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for (var i = 0; i < v1.length; i++) {
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if (v1[i] == v2[i]) continue;
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if (parseInt(v1[i]) > parseInt(v2[i])) return true;
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return false;
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}
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return true;
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};
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// #endif
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// #ifdef MP-WEIXIN || MP-QQ
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// 版本兼容
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if (versionHigherThan("2.7.1")) {
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trustTags.bdi = true;
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trustTags.bdo = true;
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trustTags.caption = true;
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trustTags.rt = true;
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trustTags.ruby = true;
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ignoreTags.rp = true;
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trustTags.big = true;
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trustTags.small = true;
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trustTags.pre = true;
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trustTags.iframe = true;
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richOnlyTags.bdi = true;
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richOnlyTags.bdo = true;
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richOnlyTags.caption = true;
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richOnlyTags.rt = true;
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richOnlyTags.ruby = true;
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richOnlyTags.pre = true;
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blockTags.pre = undefined;
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} else {
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blockTags.caption = true;
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userAgentStyles.big = "display:inline;font-size:1.2em";
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userAgentStyles.small = "display:inline;font-size:0.8em";
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}
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// #endif
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function bubbling(Parser) {
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for (var i = Parser._STACK.length - 1; i >= 0; i--) {
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if (!richOnlyTags[Parser._STACK[i].name])
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Parser._STACK[i].c = 1;
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else return false;
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}
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return true;
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}
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module.exports = {
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// 高亮处理函数
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highlight: null,
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// 处理标签的属性，需要通过组件递归方式显示的标签需要调用 bubbling(Parser)
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LabelAttrsHandler(node, Parser) {
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let default_style = "max-width: 100% !important;display:block;"
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node.attrs.style = Parser.CssHandler.match(node.name, node.attrs, node) + (node.attrs.style || '');
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switch (node.name) {
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case "ul":
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case "ol":
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case "li":
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case "dd":
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case "dl":
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case "dt":
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case "div":
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case "span":
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case "em":
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case 'p':
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if (node.name === 'span') {
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default_style = 'white-space:normal;'
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}
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if (node.name === 'p' && (!node.attrs.style || !node.attrs.style.includes('margin-top:'))) {
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default_style += 'margin-top:10px;'
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}
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if (node.attrs.style) {
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node.attrs.style = node.attrs.style.includes('width:') ? default_style : node.attrs.style +
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`;${default_style}`
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}
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if (node.attrs.align) {
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node.attrs.style = "text-align:" + node.attrs.align + ';' + node.attrs.style;
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node.attrs.align = undefined;
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}
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break;
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case "img":
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if (node.attrs.height) {
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node.attrs.height = 'auto'
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}
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if (node.attrs.style) {
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node.attrs.style = node.attrs.style.includes('height:') ? default_style : node.attrs.style +
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`;${default_style}`
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}
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if (node.attrs["data-src"]) {
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node.attrs.src = node.attrs.src || node.attrs["data-src"];
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node.attrs["data-src"] = undefined;
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}
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// #ifdef MP-BAIDU || MP-TOUTIAO
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if (Parser._imgMode == "widthFix") node.attrs.style = node.attrs.style + ";height:auto !important;";
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// #endif
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if (node.attrs.src) {
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if (!node.attrs.ignore) {
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if (bubbling(Parser)) node.attrs.i = (Parser._imgNum++).toString();
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else node.attrs.ignore = "true";
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}
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if (Parser._domain && node.attrs.src[0] == '/') {
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if (node.attrs.src[1] == '/') node.attrs.src = Parser._protocol + ":" + node.attrs.src;
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else node.attrs.src = Parser._domain + node.attrs.src;
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}
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}
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break;
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case 'a':
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case "ad":
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bubbling(Parser);
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break;
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case "font":
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if (node.attrs.color) {
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node.attrs.style = "color:" + node.attrs.color + ';' + node.attrs.style;
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node.attrs.color = undefined;
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}
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if (node.attrs.face) {
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node.attrs.style = "font-family:" + node.attrs.face + ';' + node.attrs.style;
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node.attrs.face = undefined;
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}
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if (node.attrs.size) {
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var size = parseInt(node.attrs.size);
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if (size < 1) size = 1;
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else if (size > 7) size = 7;
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var map = ["xx-small", "x-small", "small", "medium", "large", "x-large", "xx-large"];
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node.attrs.style = "font-size:" + map[size - 1] + ';' + node.attrs.style;
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node.attrs.size = undefined;
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}
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break;
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case 'iframe':
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case "video":
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case "audio":
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node.attrs.loop = node.attrs.hasOwnProperty('loop') || false;
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node.attrs.controls = node.attrs.hasOwnProperty(
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'controls') || true;
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node.attrs.autoplay = node.attrs.hasOwnProperty('autoplay') || false;
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if (node.attrs.id) Parser['_' + node.name + "Num"]++;
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else node.attrs.id = (node.name + (++Parser['_' + node.name + "Num"]));
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if (node.name == "video") {
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node.attrs.style = node.attrs.style || '';
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if (node.attrs.width) {
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node.attrs.style = "width:" + parseFloat(node.attrs.width) + (node.attrs.height.includes(
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'%') ? '%' : "px") +
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';' + node.attrs.style;
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node.attrs.width = undefined;
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}
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if (node.attrs.height) {
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node.attrs.style = "height:" + parseFloat(node.attrs.height) + (node.attrs.height.includes(
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'%') ? '%' : "px") +
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';' + node.attrs.style;
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node.attrs.height = undefined;
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}
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if (Parser._videoNum > 3) node.lazyLoad = true;
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}
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// 新增iframe【create_by_xx】
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if (node.name == 'iframe') {
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// console.log(node.attrs, "====iframe attrs");
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}
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node.attrs.source = [];
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if (node.attrs.src) node.attrs.source.push(node.attrs.src);
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if (!node.attrs.controls && !node.attrs.autoplay)
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console.warn("存在没有controls属性的 " + node.name + " 标签，可能导致无法播放", node);
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bubbling(Parser);
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break;
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case "source":
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var parent = Parser._STACK[Parser._STACK.length - 1];
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if (parent && (parent.name == "video" || parent.name == "audio")) {
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parent.attrs.source.push(node.attrs.src);
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if (!parent.attrs.src) parent.attrs.src = node.attrs.src;
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}
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break;
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}
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if (Parser._domain && node.attrs.style.includes("url"))
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node.attrs.style = node.attrs.style.replace(/url\s*\(['"\s]*(\S*?)['"\s]*\)/, function() {
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var src = arguments[1];
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if (src && src[0] == '/') {
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if (src[1] == '/') return "url(" + Parser._protocol + ':' + src + ')';
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else return "url(" + Parser._domain + src + ')';
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} else return arguments[0];
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})
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if (!node.attrs.style) node.attrs.style = undefined;
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if (Parser._useAnchor && node.attrs.id) bubbling(Parser);
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},
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trustAttrs,
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trustTags,
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blockTags,
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ignoreTags,
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selfClosingTags,
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userAgentStyles,
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// #ifndef MP-ALIPAY || H5
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versionHigherThan,
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// #endif
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makeMap
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} |