b38dea0597
Share Gaia assets and adapters, keep private profiles and development documents local, and update both public READMEs.
11 lines
No EOL
2.2 KiB
JavaScript
11 lines
No EOL
2.2 KiB
JavaScript
;'use strict';var LazyLoader=(function(){function LazyLoader(){this._loaded={};this._isLoading={};}
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LazyLoader.prototype={_js:function(file,callback){var script=document.createElement('script');script.src=file;script.async=false;script.addEventListener('load',callback);document.head.appendChild(script);this._isLoading[file]=script;},_css:function(file,callback){var style=document.createElement('link');style.type='text/css';style.rel='stylesheet';style.href=file;document.head.appendChild(style);callback();},_html:function(domNode,callback){if(domNode.getAttribute('is')){this.load(['/shared/js/html_imports.js'],function(){HtmlImports.populate(callback);}.bind(this));return;}
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for(var i=0;i<domNode.childNodes.length;i++){if(domNode.childNodes[i].nodeType==document.COMMENT_NODE){domNode.innerHTML=domNode.childNodes[i].nodeValue;break;}}
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window.dispatchEvent(new CustomEvent('lazyload',{detail:domNode}));callback();},getJSON:function(file,mozSystem){return new Promise(function(resolve,reject){var xhr;if(mozSystem){xhr=new XMLHttpRequest({mozSystem:true});}else{xhr=new XMLHttpRequest();}
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xhr.open('GET',file,true);xhr.responseType='json';xhr.onerror=function(error){reject(error);};xhr.onload=function(){if(xhr.response!==null){resolve(xhr.response);}else{reject(new Error('No valid JSON object was found ('+
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xhr.status+' '+xhr.statusText+')'));}};xhr.send();});},load:function(files,callback){var deferred={};deferred.promise=new Promise(resolve=>{deferred.resolve=resolve;});if(!Array.isArray(files)){files=[files];}
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var loadsRemaining=files.length,self=this;function perFileCallback(file){if(self._isLoading[file]){delete self._isLoading[file];}
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self._loaded[file]=true;if(--loadsRemaining===0){deferred.resolve();if(callback){callback();}}}
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for(var i=0;i<files.length;i++){var file=files[i];if(this._loaded[file.id||file]){perFileCallback(file);}else if(this._isLoading[file]){this._isLoading[file].addEventListener('load',perFileCallback.bind(null,file));}else{var method,idx;if(typeof file==='string'){method=file.match(/\.([^.]+)$/)[1];idx=file;}else{method='html';idx=file.id;}
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this['_'+method](file,perFileCallback.bind(null,idx));}}
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return deferred.promise;}};return new LazyLoader();}()); |