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77 lines
2.5 KiB
77 lines
2.5 KiB
/* @flow */
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import { inBrowser } from 'core/util/env'
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import { makeMap } from 'shared/util'
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export const namespaceMap = {
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svg: 'http://www.w3.org/2000/svg',
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math: 'http://www.w3.org/1998/Math/MathML'
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}
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export const isHTMLTag = makeMap(
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'html,body,base,head,link,meta,style,title,' +
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'address,article,aside,footer,header,h1,h2,h3,h4,h5,h6,hgroup,nav,section,' +
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'div,dd,dl,dt,figcaption,figure,picture,hr,img,li,main,ol,p,pre,ul,' +
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'a,b,abbr,bdi,bdo,br,cite,code,data,dfn,em,i,kbd,mark,q,rp,rt,rtc,ruby,' +
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's,samp,small,span,strong,sub,sup,time,u,var,wbr,area,audio,map,track,video,' +
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'embed,object,param,source,canvas,script,noscript,del,ins,' +
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'caption,col,colgroup,table,thead,tbody,td,th,tr,' +
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'button,datalist,fieldset,form,input,label,legend,meter,optgroup,option,' +
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'output,progress,select,textarea,' +
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'details,dialog,menu,menuitem,summary,' +
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'content,element,shadow,template,blockquote,iframe,tfoot'
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)
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// this map is intentionally selective, only covering SVG elements that may
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// contain child elements.
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export const isSVG = makeMap(
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'svg,animate,circle,clippath,cursor,defs,desc,ellipse,filter,font-face,' +
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'foreignObject,g,glyph,image,line,marker,mask,missing-glyph,path,pattern,' +
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'polygon,polyline,rect,switch,symbol,text,textpath,tspan,use,view',
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true
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)
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export const isPreTag = (tag: ?string): boolean => tag === 'pre'
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export const isReservedTag = (tag: string): ?boolean => {
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return isHTMLTag(tag) || isSVG(tag)
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}
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export function getTagNamespace (tag: string): ?string {
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if (isSVG(tag)) {
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return 'svg'
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}
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// basic support for MathML
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// note it doesn't support other MathML elements being component roots
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if (tag === 'math') {
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return 'math'
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}
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}
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const unknownElementCache = Object.create(null)
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export function isUnknownElement (tag: string): boolean {
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/* istanbul ignore if */
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if (!inBrowser) {
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return true
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}
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if (isReservedTag(tag)) {
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return false
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}
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tag = tag.toLowerCase()
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/* istanbul ignore if */
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if (unknownElementCache[tag] != null) {
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return unknownElementCache[tag]
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}
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const el = document.createElement(tag)
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if (tag.indexOf('-') > -1) {
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// http://stackoverflow.com/a/28210364/1070244
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return (unknownElementCache[tag] = (
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el.constructor === window.HTMLUnknownElement ||
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el.constructor === window.HTMLElement
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))
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} else {
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return (unknownElementCache[tag] = /HTMLUnknownElement/.test(el.toString()))
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}
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}
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export const isTextInputType = makeMap('text,number,password,search,email,tel,url')
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