86 lines
1.7 KiB
JavaScript
86 lines
1.7 KiB
JavaScript
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define("dojo/request/registry", [
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'require',
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'../_base/array',
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'./default!platform',
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'./util'
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], function(require, array, fallbackProvider, util){
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var providers = [];
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function request(url, options){
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var matchers = providers.slice(0),
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i = 0,
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matcher;
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while(matcher=matchers[i++]){
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if(matcher(url, options)){
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return matcher.request.call(null, url, options);
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}
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}
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return fallbackProvider.apply(null, arguments);
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}
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function createMatcher(match, provider){
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var matcher;
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if(provider){
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if(match.test){
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// RegExp
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matcher = function(url){
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return match.test(url);
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};
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}else if(match.apply && match.call){
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matcher = function(){
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return match.apply(null, arguments);
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};
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}else{
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matcher = function(url){
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return url === match;
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};
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}
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matcher.request = provider;
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}else{
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// If only one argument was passed, assume it is a provider function
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// to apply unconditionally to all URLs
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matcher = function(){
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return true;
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};
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matcher.request = match;
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}
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return matcher;
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}
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request.register = function(url, provider, first){
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var matcher = createMatcher(url, provider);
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providers[(first ? 'unshift' : 'push')](matcher);
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return {
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remove: function(){
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var idx;
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if(~(idx = array.indexOf(providers, matcher))){
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providers.splice(idx, 1);
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}
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}
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};
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};
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request.load = function(id, parentRequire, loaded, config){
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if(id){
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// if there's an id, load and set the fallback provider
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require([id], function(fallback){
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fallbackProvider = fallback;
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loaded(request);
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});
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}else{
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loaded(request);
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}
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};
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util.addCommonMethods(request);
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return request;
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});
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