+++ /dev/null
-define("dojo/request/script", [
- 'module',
- './watch',
- './util',
- '../_base/array',
- '../_base/lang',
- '../on',
- '../dom',
- '../dom-construct',
- '../has',
- '../_base/window'/*=====,
- '../request',
- '../_base/declare' =====*/
-], function(module, watch, util, array, lang, on, dom, domConstruct, has, win/*=====, request, declare =====*/){
- has.add('script-readystatechange', function(global, document){
- var script = document.createElement('script');
- return typeof script['onreadystatechange'] !== 'undefined' &&
- (typeof global['opera'] === 'undefined' || global['opera'].toString() !== '[object Opera]');
- });
-
- var mid = module.id.replace(/[\/\.\-]/g, '_'),
- counter = 0,
- loadEvent = has('script-readystatechange') ? 'readystatechange' : 'load',
- readyRegExp = /complete|loaded/,
- callbacks = this[mid + '_callbacks'] = {},
- deadScripts = [];
-
- function attach(id, url, frameDoc){
- var doc = (frameDoc || win.doc),
- element = doc.createElement('script');
-
- element.type = 'text/javascript';
- element.src = url;
- element.id = id;
- element.async = true;
- element.charset = 'utf-8';
-
- return doc.getElementsByTagName('head')[0].appendChild(element);
- }
-
- function remove(id, frameDoc, cleanup){
- domConstruct.destroy(dom.byId(id, frameDoc));
-
- if(callbacks[id]){
- if(cleanup){
- // set callback to a function that deletes itself so requests that
- // are in-flight don't error out when returning and also
- // clean up after themselves
- callbacks[id] = function(){
- delete callbacks[id];
- };
- }else{
- delete callbacks[id];
- }
- }
- }
-
- function _addDeadScript(dfd){
- // Be sure to check ioArgs because it can dynamically change in the dojox/io plugins.
- // See http://bugs.dojotoolkit.org/ticket/15890.
- var options = dfd.response.options,
- frameDoc = options.ioArgs ? options.ioArgs.frameDoc : options.frameDoc;
-
- deadScripts.push({ id: dfd.id, frameDoc: frameDoc });
-
- if(options.ioArgs){
- options.ioArgs.frameDoc = null;
- }
- options.frameDoc = null;
- }
-
- function canceler(dfd, response){
- if(dfd.canDelete){
- //For timeouts and cancels, remove the script element immediately to
- //avoid a response from it coming back later and causing trouble.
- script._remove(dfd.id, response.options.frameDoc, true);
- }
- }
- function isValid(response){
- //Do script cleanup here. We wait for one inflight pass
- //to make sure we don't get any weird things by trying to remove a script
- //tag that is part of the call chain (IE 6 has been known to
- //crash in that case).
- if(deadScripts && deadScripts.length){
- array.forEach(deadScripts, function(_script){
- script._remove(_script.id, _script.frameDoc);
- _script.frameDoc = null;
- });
- deadScripts = [];
- }
-
- return response.options.jsonp ? !response.data : true;
- }
- function isReadyScript(response){
- return !!this.scriptLoaded;
- }
- function isReadyCheckString(response){
- var checkString = response.options.checkString;
-
- return checkString && eval('typeof(' + checkString + ') !== "undefined"');
- }
- function handleResponse(response, error){
- if(this.canDelete){
- _addDeadScript(this);
- }
- if(error){
- this.reject(error);
- }else{
- this.resolve(response);
- }
- }
-
- function script(url, options, returnDeferred){
- var response = util.parseArgs(url, util.deepCopy({}, options));
- url = response.url;
- options = response.options;
-
- var dfd = util.deferred(
- response,
- canceler,
- isValid,
- options.jsonp ? null : (options.checkString ? isReadyCheckString : isReadyScript),
- handleResponse
- );
-
- lang.mixin(dfd, {
- id: mid + (counter++),
- canDelete: false
- });
-
- if(options.jsonp){
- var queryParameter = new RegExp('[?&]' + options.jsonp + '=');
- if(!queryParameter.test(url)){
- url += queryParameter +
- (options.frameDoc ? 'parent.' : '') +
- mid + '_callbacks.' + dfd.id;
- }
-
- dfd.canDelete = true;
- callbacks[dfd.id] = function(json){
- response.data = json;
- dfd.handleResponse(response);
- };
- }
-
- if(util.notify){
- util.notify.emit('send', response, dfd.promise.cancel);
- }
-
- if(!options.canAttach || options.canAttach(dfd)){
- var node = script._attach(dfd.id, url, options.frameDoc);
-
- if(!options.jsonp && !options.checkString){
- var handle = on(node, loadEvent, function(evt){
- if(evt.type === 'load' || readyRegExp.test(node.readyState)){
- handle.remove();
- dfd.scriptLoaded = evt;
- }
- });
- }
- }
-
- watch(dfd);
-
- return returnDeferred ? dfd : dfd.promise;
- }
- script.get = script;
- /*=====
- script = function(url, options){
- // summary:
- // Sends a request using a script element with the given URL and options.
- // url: String
- // URL to request
- // options: dojo/request/script.__Options?
- // Options for the request.
- // returns: dojo/request.__Promise
- };
- script.__BaseOptions = declare(request.__BaseOptions, {
- // jsonp: String?
- // The URL parameter name that indicates the JSONP callback string.
- // For instance, when using Yahoo JSONP calls it is normally,
- // jsonp: "callback". For AOL JSONP calls it is normally
- // jsonp: "c".
- // checkString: String?
- // A string of JavaScript that when evaluated like so:
- // "typeof(" + checkString + ") != 'undefined'"
- // being true means that the script fetched has been loaded.
- // Do not use this if doing a JSONP type of call (use `jsonp` instead).
- // frameDoc: Document?
- // The Document object of a child iframe. If this is passed in, the script
- // will be attached to that document. This can be helpful in some comet long-polling
- // scenarios with Firefox and Opera.
- });
- script.__MethodOptions = declare(null, {
- // method: String?
- // This option is ignored. All requests using this transport are
- // GET requests.
- });
- script.__Options = declare([script.__BaseOptions, script.__MethodOptions]);
-
- script.get = function(url, options){
- // summary:
- // Send an HTTP GET request using a script element with the given URL and options.
- // url: String
- // URL to request
- // options: dojo/request/script.__BaseOptions?
- // Options for the request.
- // returns: dojo/request.__Promise
- };
- =====*/
-
- // TODO: Remove in 2.0
- script._attach = attach;
- script._remove = remove;
- script._callbacksProperty = mid + '_callbacks';
-
- return script;
-});
git.wh0rd.org / tt-rss.git / blobdiff