45 lines
1.3 KiB
JavaScript
45 lines
1.3 KiB
JavaScript
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/** @license
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* RequireJS plugin for async dependency load like JSONP and Google Maps
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* Author: Miller Medeiros
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* Version: 0.1.1 (2011/11/17)
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* Released under the MIT license
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*/
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define(function(){
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var DEFAULT_PARAM_NAME = 'callback',
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_uid = 0;
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function injectScript(src){
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var s, t;
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s = document.createElement('script'); s.type = 'text/javascript'; s.async = true; s.src = src;
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t = document.getElementsByTagName('script')[0]; t.parentNode.insertBefore(s,t);
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}
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function formatUrl(name, id){
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var paramRegex = /!(.+)/,
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url = name.replace(paramRegex, ''),
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param = (paramRegex.test(name))? name.replace(/.+!/, '') : DEFAULT_PARAM_NAME;
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url += (url.indexOf('?') < 0)? '?' : '&';
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return url + param +'='+ id;
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}
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function uid() {
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_uid += 1;
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return '__async_req_'+ _uid +'__';
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}
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return{
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load : function(name, req, onLoad, config){
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if(config.isBuild){
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onLoad(null); //avoid errors on the optimizer
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}else{
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var id = uid();
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//create a global variable that stores onLoad so callback
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//function can define new module after async load
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window[id] = onLoad;
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injectScript(formatUrl(name, id));
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}
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}
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};
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});
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