/* Copyright (c) 2004-2010, The Dojo Foundation All Rights Reserved. Available via Academic Free License >= 2.1 OR the modified BSD license. see: http://dojotoolkit.org/license for details */ if(!dojo._hasResource["dojo._base._loader.loader_xd"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code. dojo._hasResource["dojo._base._loader.loader_xd"] = true; //Cross-domain resource loader. dojo.provide("dojo._base._loader.loader_xd"); dojo._xdReset = function(){ //summary: Internal xd loader function. Resets the xd state. //This flag indicates where or not we have crossed into xdomain territory. Once any resource says //it is cross domain, then the rest of the resources have to be treated as xdomain because we need //to evaluate resources in order. If there is a xdomain resource followed by a xhr resource, we can't load //the xhr resource until the one before it finishes loading. The text of the xhr resource will be converted //to match the format for a xd resource and put in the xd load queue. dojo._isXDomain = dojo.config.useXDomain || false; dojo._xdClearInterval(); dojo._xdInFlight = {}; dojo._xdOrderedReqs = []; dojo._xdDepMap = {}; dojo._xdContents = []; dojo._xdDefList = []; } dojo._xdClearInterval = function(){ //summary: Internal xd loader function. //Clears the interval timer used to check on the //status of in-flight xd module resource requests. if(dojo._xdTimer){ clearInterval(dojo._xdTimer); dojo._xdTimer = 0; } } //Call reset immediately to set the state. dojo._xdReset(); dojo._xdCreateResource = function(/*String*/contents, /*String*/resourceName, /*String*/resourcePath){ //summary: Internal xd loader function. Creates an xd module source given an //non-xd module contents. //Remove comments. Not perfect, but good enough for dependency resolution. var depContents = contents.replace(/(\/\*([\s\S]*?)\*\/|\/\/(.*)$)/mg , ""); //Find dependencies. var deps = []; var depRegExp = /dojo.(require|requireIf|provide|requireAfterIf|platformRequire|requireLocalization)\s*\(([\w\W]*?)\)/mg; var match; while((match = depRegExp.exec(depContents)) != null){ if(match[1] == "requireLocalization"){ //Need to load the local bundles asap, since they are not //part of the list of modules watched for loading. eval(match[0]); }else{ deps.push('"' + match[1] + '", ' + match[2]); } } //Create resource object and the call to _xdResourceLoaded. var output = []; output.push(dojo._scopeName + "._xdResourceLoaded(function(" + dojo._scopePrefixArgs + "){\n"); //See if there are any dojo.loadInit calls var loadInitCalls = dojo._xdExtractLoadInits(contents); if(loadInitCalls){ //Adjust fileContents since extractLoadInits removed something. contents = loadInitCalls[0]; //Add any loadInit calls to the top of the xd file. for(var i = 1; i < loadInitCalls.length; i++){ output.push(loadInitCalls[i] + ";\n"); } } output.push("return {"); //Add dependencies if(deps.length > 0){ output.push("depends: ["); for(i = 0; i < deps.length; i++){ if(i > 0){ output.push(",\n"); } output.push("[" + deps[i] + "]"); } output.push("],"); } //Add the contents of the file inside a function. //Pass in scope arguments so we can support multiple versions of the //same module on a page. output.push("\ndefineResource: function(" + dojo._scopePrefixArgs + "){"); //Don't put in the contents in the debugAtAllCosts case //since the contents may have syntax errors. Let those //get pushed up when the script tags are added to the page //in the debugAtAllCosts case. if(!dojo.config["debugAtAllCosts"] || resourceName == "dojo._base._loader.loader_debug"){ output.push(contents); } //Add isLocal property so we know if we have to do something different //in debugAtAllCosts situations. output.push("\n}, resourceName: '" + resourceName + "', resourcePath: '" + resourcePath + "'};});"); return output.join(""); //String } dojo._xdExtractLoadInits = function(/*String*/fileContents){ //Extracts var regexp = /dojo.loadInit\s*\(/g; regexp.lastIndex = 0; var parenRe = /[\(\)]/g; parenRe.lastIndex = 0; var results = []; var matches; while((matches = regexp.exec(fileContents))){ //Find end of the call by finding the matching end paren parenRe.lastIndex = regexp.lastIndex; var matchCount = 1; var parenMatch; while((parenMatch = parenRe.exec(fileContents))){ if(parenMatch[0] == ")"){ matchCount -= 1; }else{ matchCount += 1; } if(matchCount == 0){ break; } } if(matchCount != 0){ throw "unmatched paren around character " + parenRe.lastIndex + " in: " + fileContents; } //Put the master matching string in the results. var startIndex = regexp.lastIndex - matches[0].length; results.push(fileContents.substring(startIndex, parenRe.lastIndex)); //Remove the matching section. var remLength = parenRe.lastIndex - startIndex; fileContents = fileContents.substring(0, startIndex) + fileContents.substring(parenRe.lastIndex, fileContents.length); //Move the master regexp past the last matching paren point. regexp.lastIndex = parenRe.lastIndex - remLength; regexp.lastIndex = parenRe.lastIndex; } if(results.length > 0){ results.unshift(fileContents); } return (results.length ? results : null); } dojo._xdIsXDomainPath = function(/*string*/relpath) { //summary: Figure out whether the path is local or x-domain //If there is a colon before the first / then, we have a URL with a protocol. var colonIndex = relpath.indexOf(":"); var slashIndex = relpath.indexOf("/"); if(colonIndex > 0 && colonIndex < slashIndex){ return true; }else{ //Is the base script URI-based URL a cross domain URL? //If so, then the relpath will be evaluated relative to //baseUrl, and therefore qualify as xdomain. //Only treat it as xdomain if the page does not have a //host (file:// url) or if the baseUrl does not match the //current window's domain. var url = dojo.baseUrl; colonIndex = url.indexOf(":"); slashIndex = url.indexOf("/"); if(colonIndex > 0 && colonIndex < slashIndex && (!location.host || url.indexOf("http://" + location.host) != 0)){ return true; } } return false; } dojo._loadPath = function(/*String*/relpath, /*String?*/module, /*Function?*/cb){ //summary: Internal xd loader function. Overrides loadPath() from loader.js. //xd loading requires slightly different behavior from loadPath(). var currentIsXDomain = dojo._xdIsXDomainPath(relpath); dojo._isXDomain |= currentIsXDomain; var uri = ((relpath.charAt(0) == '/' || relpath.match(/^\w+:/)) ? "" : dojo.baseUrl) + relpath; try{ return ((!module || dojo._isXDomain) ? dojo._loadUri(uri, cb, currentIsXDomain, module) : dojo._loadUriAndCheck(uri, module, cb)); //Boolean }catch(e){ console.error(e); return false; //Boolean } } dojo._xdCharSet = "utf-8"; dojo._loadUri = function(/*String*/uri, /*Function?*/cb, /*boolean*/currentIsXDomain, /*String?*/module){ //summary: Internal xd loader function. Overrides loadUri() from loader.js. // xd loading requires slightly different behavior from loadPath(). //description: Wanted to override getText(), but it is used by // the widget code in too many, synchronous ways right now. if(dojo._loadedUrls[uri]){ return 1; //Boolean } //Add the module (resource) to the list of modules. //Only do this work if we have a modlue name. Otherwise, //it is a non-xd i18n bundle, which can load immediately and does not //need to be tracked. Also, don't track dojo.i18n, since it is a prerequisite //and will be loaded correctly if we load it right away: it has no dependencies. if(dojo._isXDomain && module && module != "dojo.i18n"){ dojo._xdOrderedReqs.push(module); //Add to waiting resources if it is an xdomain resource. //Don't add non-xdomain i18n bundles, those get evaled immediately. if(currentIsXDomain || uri.indexOf("/nls/") == -1){ dojo._xdInFlight[module] = true; //Increment inFlightCount //This will stop the modulesLoaded from firing all the way. dojo._inFlightCount++; } //Start timer if(!dojo._xdTimer){ if(dojo.isAIR){ dojo._xdTimer = setInterval(function(){dojo._xdWatchInFlight();}, 100); }else{ dojo._xdTimer = setInterval(dojo._scopeName + "._xdWatchInFlight();", 100); } } dojo._xdStartTime = (new Date()).getTime(); } if (currentIsXDomain){ //Fix name to be a .xd.fileextension name. var lastIndex = uri.lastIndexOf('.'); if(lastIndex <= 0){ lastIndex = uri.length - 1; } var xdUri = uri.substring(0, lastIndex) + ".xd"; if(lastIndex != uri.length - 1){ xdUri += uri.substring(lastIndex, uri.length); } if (dojo.isAIR){ xdUri = xdUri.replace("app:/", "/"); } //Add to script src var element = document.createElement("script"); element.type = "text/javascript"; if(dojo._xdCharSet){ element.charset = dojo._xdCharSet; } element.src = xdUri; if(!dojo.headElement){ dojo._headElement = document.getElementsByTagName("head")[0]; //Head element may not exist, particularly in html //html 4 or tag soup cases where the page does not //have a head tag in it. Use html element, since that will exist. //Seems to be an issue mostly with Opera 9 and to lesser extent Safari 2 if(!dojo._headElement){ dojo._headElement = document.getElementsByTagName("html")[0]; } } dojo._headElement.appendChild(element); }else{ var contents = dojo._getText(uri, null, true); if(contents == null){ return 0; /*boolean*/} //If this is not xdomain, or if loading a i18n resource bundle, then send it down //the normal eval/callback path. if(dojo._isXDomain && uri.indexOf("/nls/") == -1 && module != "dojo.i18n"){ var res = dojo._xdCreateResource(contents, module, uri); dojo.eval(res); }else{ if(cb){ contents = '('+contents+')'; }else{ //Only do the scoping if no callback. If a callback is specified, //it is most likely the i18n bundle stuff. contents = dojo._scopePrefix + contents + dojo._scopeSuffix; } var value = dojo["eval"](contents+"\r\n//@ sourceURL="+uri); if(cb){ cb(value); } } } //These steps are done in the non-xd loader version of this function. //Maintain these steps to fit in with the existing system. dojo._loadedUrls[uri] = true; dojo._loadedUrls.push(uri); return true; //Boolean } dojo._xdResourceLoaded = function(/*Object*/res){ //summary: Internal xd loader function. Called by an xd module resource when //it has been loaded via a script tag. //Evaluate the function with scopeArgs for multiversion support. res = res.apply(dojo.global, dojo._scopeArgs); //Work through dependencies. var deps = res.depends; var requireList = null; var requireAfterList = null; var provideList = []; if(deps && deps.length > 0){ var dep = null; var insertHint = 0; var attachedResource = false; for(var i = 0; i < deps.length; i++){ dep = deps[i]; //Look for specific dependency indicators. if (dep[0] == "provide"){ provideList.push(dep[1]); }else{ if(!requireList){ requireList = []; } if(!requireAfterList){ requireAfterList = []; } var unpackedDeps = dojo._xdUnpackDependency(dep); if(unpackedDeps.requires){ requireList = requireList.concat(unpackedDeps.requires); } if(unpackedDeps.requiresAfter){ requireAfterList = requireAfterList.concat(unpackedDeps.requiresAfter); } } //Call the dependency indicator to allow for the normal dojo setup. //Only allow for one dot reference, for the i18n._preloadLocalizations calls //(and maybe future, one-dot things). var depType = dep[0]; var objPath = depType.split("."); if(objPath.length == 2){ dojo[objPath[0]][objPath[1]].apply(dojo[objPath[0]], dep.slice(1)); }else{ dojo[depType].apply(dojo, dep.slice(1)); } } //If loading the debugAtAllCosts module, eval it right away since we need //its functions to properly load the other modules. if(provideList.length == 1 && provideList[0] == "dojo._base._loader.loader_debug"){ res.defineResource(dojo); }else{ //Save off the resource contents for definition later. var contentIndex = dojo._xdContents.push({ content: res.defineResource, resourceName: res["resourceName"], resourcePath: res["resourcePath"], isDefined: false }) - 1; //Add provide/requires to dependency map. for(i = 0; i < provideList.length; i++){ dojo._xdDepMap[provideList[i]] = { requires: requireList, requiresAfter: requireAfterList, contentIndex: contentIndex }; } } //Now update the inflight status for any provided resources in this loaded resource. //Do this at the very end (in a *separate* for loop) to avoid shutting down the //inflight timer check too soon. for(i = 0; i < provideList.length; i++){ dojo._xdInFlight[provideList[i]] = false; } } } dojo._xdLoadFlattenedBundle = function(/*String*/moduleName, /*String*/bundleName, /*String?*/locale, /*Object*/bundleData){ //summary: Internal xd loader function. Used when loading //a flattened localized bundle via a script tag. locale = locale || "root"; var jsLoc = dojo.i18n.normalizeLocale(locale).replace('-', '_'); var bundleResource = [moduleName, "nls", bundleName].join("."); var bundle = dojo["provide"](bundleResource); bundle[jsLoc] = bundleData; //Assign the bundle for the original locale(s) we wanted. var mapName = [moduleName, jsLoc, bundleName].join("."); var bundleMap = dojo._xdBundleMap[mapName]; if(bundleMap){ for(var param in bundleMap){ bundle[param] = bundleData; } } }; dojo._xdInitExtraLocales = function(){ // Simulate the extra locale work that dojo.requireLocalization does. var extra = dojo.config.extraLocale; if(extra){ if(!extra instanceof Array){ extra = [extra]; } dojo._xdReqLoc = dojo.xdRequireLocalization; dojo.xdRequireLocalization = function(m, b, locale, fLocales){ dojo._xdReqLoc(m,b,locale, fLocales); if(locale){return;} for(var i=0; i bestLocale.length){ bestLocale = locales[i]; } } } var fixedBestLocale = bestLocale.replace('-', '_'); //See if the bundle we are going to use is already loaded. var bundleResource = dojo.getObject([moduleName, "nls", bundleName].join(".")); if(!bundleResource || !bundleResource[fixedBestLocale]){ //Need to remember what locale we wanted and which one we actually use. //Then when we load the one we are actually using, use that bundle for the one //we originally wanted. var mapName = [moduleName, (fixedBestLocale||"root"), bundleName].join("."); var bundleMap = dojo._xdBundleMap[mapName]; if(!bundleMap){ bundleMap = dojo._xdBundleMap[mapName] = {}; } bundleMap[jsLoc.replace('-', '_')] = true; //Do just a normal dojo.require so the resource tracking stuff works as usual. dojo.require(moduleName + ".nls" + (bestLocale ? "." + bestLocale : "") + "." + bundleName); } } // Replace dojo.requireLocalization with a wrapper dojo._xdRealRequireLocalization = dojo.requireLocalization; dojo.requireLocalization = function(/*String*/moduleName, /*String*/bundleName, /*String?*/locale, /*String*/availableFlatLocales){ // summary: loads a bundle intelligently based on whether the module is // local or xd. Overrides the local-case implementation. var modulePath = dojo.moduleUrl(moduleName).toString(); if (dojo._xdIsXDomainPath(modulePath)) { // call cross-domain loader return dojo.xdRequireLocalization.apply(dojo, arguments); } else { // call local-loader return dojo._xdRealRequireLocalization.apply(dojo, arguments); } } //This is a bit brittle: it has to know about the dojo methods that deal with dependencies //It would be ideal to intercept the actual methods and do something fancy at that point, //but I have concern about knowing which provide to match to the dependency in that case, //since scripts can load whenever they want, and trigger new calls to dojo._xdResourceLoaded(). dojo._xdUnpackDependency = function(/*Array*/dep){ //summary: Internal xd loader function. Determines what to do with a dependency //that was listed in an xd version of a module contents. //Extract the dependency(ies). var newDeps = null; var newAfterDeps = null; switch(dep[0]){ case "requireIf": case "requireAfterIf": //First arg (dep[1]) is the test. Depedency is dep[2]. if(dep[1] === true){ newDeps = [{name: dep[2], content: null}]; } break; case "platformRequire": var modMap = dep[1]; var common = modMap["common"]||[]; newDeps = (modMap[dojo.hostenv.name_]) ? common.concat(modMap[dojo.hostenv.name_]||[]) : common.concat(modMap["default"]||[]); //Flatten the array of arrays into a one-level deep array. //Each result could be an array of 3 elements (the 3 arguments to dojo.require). //We only need the first one. if(newDeps){ for(var i = 0; i < newDeps.length; i++){ if(newDeps[i] instanceof Array){ newDeps[i] = {name: newDeps[i][0], content: null}; }else{ newDeps[i] = {name: newDeps[i], content: null}; } } } break; case "require": //Just worry about dep[1] newDeps = [{name: dep[1], content: null}]; break; case "i18n._preloadLocalizations": //We can eval these immediately, since they load i18n bundles. //Since i18n bundles have no dependencies, whenever they are loaded //in a script tag, they are evaluated immediately, so we do not have to //treat them has an explicit dependency for the dependency mapping. //We can call it immediately since dojo.i18n is part of dojo.xd.js. dojo.i18n._preloadLocalizations.apply(dojo.i18n._preloadLocalizations, dep.slice(1)); break; } //The requireIf and requireAfterIf needs to be evaluated after the current resource is evaluated. if(dep[0] == "requireAfterIf" || dep[0] == "requireIf"){ newAfterDeps = newDeps; newDeps = null; } return {requires: newDeps, requiresAfter: newAfterDeps}; //Object } dojo._xdWalkReqs = function(){ //summary: Internal xd loader function. //Walks the requires and evaluates module resource contents in //the right order. var reqChain = null; var req; for(var i = 0; i < dojo._xdOrderedReqs.length; i++){ req = dojo._xdOrderedReqs[i]; if(dojo._xdDepMap[req]){ reqChain = [req]; reqChain[req] = true; //Allow for fast lookup of the req in the array dojo._xdEvalReqs(reqChain); } } } dojo._xdEvalReqs = function(/*Array*/reqChain){ //summary: Internal xd loader function. //Does a depth first, breadth second search and eval of required modules. while(reqChain.length > 0){ var req = reqChain[reqChain.length - 1]; var res = dojo._xdDepMap[req]; var i, reqs, nextReq; if(res){ //Trace down any requires for this resource. //START dojo._xdTraceReqs() inlining for small Safari 2.0 call stack reqs = res.requires; if(reqs && reqs.length > 0){ for(i = 0; i < reqs.length; i++){ nextReq = reqs[i].name; if(nextReq && !reqChain[nextReq]){ //New req depedency. Follow it down. reqChain.push(nextReq); reqChain[nextReq] = true; dojo._xdEvalReqs(reqChain); } } } //END dojo._xdTraceReqs() inlining for small Safari 2.0 call stack //Evaluate the resource. var contents = dojo._xdContents[res.contentIndex]; if(!contents.isDefined){ var content = contents.content; content["resourceName"] = contents["resourceName"]; content["resourcePath"] = contents["resourcePath"]; dojo._xdDefList.push(content); contents.isDefined = true; } dojo._xdDepMap[req] = null; //Trace down any requireAfters for this resource. //START dojo._xdTraceReqs() inlining for small Safari 2.0 call stack reqs = res.requiresAfter; if(reqs && reqs.length > 0){ for(i = 0; i < reqs.length; i++){ nextReq = reqs[i].name; if(nextReq && !reqChain[nextReq]){ //New req depedency. Follow it down. reqChain.push(nextReq); reqChain[nextReq] = true; dojo._xdEvalReqs(reqChain); } } } //END dojo._xdTraceReqs() inlining for small Safari 2.0 call stack } //Done with that require. Remove it and go to the next one. reqChain.pop(); } } dojo._xdWatchInFlight = function(){ //summary: Internal xd loader function. //Monitors in-flight requests for xd module resources. var noLoads = ""; var waitInterval = (dojo.config.xdWaitSeconds || 15) * 1000; var expired = (dojo._xdStartTime + waitInterval) < (new Date()).getTime(); //If any xdInFlight are true, then still waiting for something to load. //Come back later. If we timed out, report the things that did not load. for(var param in dojo._xdInFlight){ if(dojo._xdInFlight[param] === true){ if(expired){ noLoads += param + " "; }else{ return; } } } //All done. Clean up and notify. dojo._xdClearInterval(); if(expired){ throw "Could not load cross-domain resources: " + noLoads; } dojo._xdWalkReqs(); var defLength = dojo._xdDefList.length; for(var i= 0; i < defLength; i++){ var content = dojo._xdDefList[i]; if(dojo.config["debugAtAllCosts"] && content["resourceName"]){ if(!dojo["_xdDebugQueue"]){ dojo._xdDebugQueue = []; } dojo._xdDebugQueue.push({resourceName: content.resourceName, resourcePath: content.resourcePath}); }else{ //Evaluate the resource to bring it into being. //Pass in scope args to allow multiple versions of modules in a page. content.apply(dojo.global, dojo._scopeArgs); } } //Evaluate any resources that were not evaled before. //This normally shouldn't happen with proper dojo.provide and dojo.require //usage, but providing it just in case. Note that these may not be executed //in the original order that the developer intended. for(i = 0; i < dojo._xdContents.length; i++){ var current = dojo._xdContents[i]; if(current.content && !current.isDefined){ //Pass in scope args to allow multiple versions of modules in a page. current.content.apply(dojo.global, dojo._scopeArgs); } } //Clean up for the next round of xd loading. dojo._xdReset(); if(dojo["_xdDebugQueue"] && dojo._xdDebugQueue.length > 0){ dojo._xdDebugFileLoaded(); }else{ dojo._xdNotifyLoaded(); } } dojo._xdNotifyLoaded = function(){ //Clear inflight count so we will finally do finish work. //Just having a legitimate status (true or false) for an inflight item //means that it is still being processed. Do the typeof test //to avoid bad JavaScript that might tinker with Object.prototype. for(var prop in dojo._xdInFlight){ if(typeof dojo._xdInFlight[prop] == "boolean"){ return; } } dojo._inFlightCount = 0; //Only trigger call loaded if dj_load_init has run. if(dojo._initFired && !dojo._loadNotifying){ dojo._callLoaded(); } } }