88 lines
2.9 KiB
JavaScript
88 lines
2.9 KiB
JavaScript
/** @module AssetLoader */
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/**
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* Loads a data url and returns the resulting element, font face, or when the type is unrecognized, a fetch response.
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* @param {String} dataURL
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* @param {String} id
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*/
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export async function loadAsset(dataURL,id=undefined,unsafe=false){
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const type=dataURL.split(';')[0].split(':')[1]
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switch(type){
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case 'text/css':{
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const style=document.createElement('style')
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style.id=id
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style.innerHTML=atob(dataURL.split(',')[1])
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if(unsafe){
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return document.body.appendChild(style)
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}
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return style
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}
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case 'text/html':{
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const element=document.createElement('span')
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element.innerHTML=atob(dataURL.split(',')[1])
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element.id=id
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if(unsafe){
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for(const script of element.querySelectorAll('script')){
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import('data:text/javascript,'+script.innerHTML)
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}
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return document.body.appendChild(element)
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}
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return element
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}
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case 'text/javascript':{
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const script=document.createElement('script')
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script.id=id
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script.innerHTML=atob(dataURL.split(',')[1])
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if(unsafe){
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import('data:text/javascript,'+script.innerHTML)
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}
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return script
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}
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default:{
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const mtype=type.split('/')[0]
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switch(mtype){
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case 'audio':{
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const audio=document.createElement('audio')
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audio.id=id
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audio.src=dataURL
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if(unsafe){
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return document.body.appendChild(audio)
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}
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return audio
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}
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case 'font':{
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if(unsafe){
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document.fonts.add(await new FontFace(id,dataURL).load())
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}
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return await new FontFace(id,dataURL).load()
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}
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case 'image':{
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const img=document.createElement('img')
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img.id=id
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img.src=dataURL
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if(unsafe){
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return document.body.appendChild(img)
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}
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return img
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}
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case 'video':{
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const video=document.createElement('video')
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video.id=id
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video.src=dataURL
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if(unsafe){
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return document.body.appendChild(video)
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}
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return video
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}
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default:{
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if(unsafe){
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window[id]=await fetch(dataURL)
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}
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return await fetch(dataURL)
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}
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}
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}
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}
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}
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export default loadAsset |