diff options
author | xue <> | 2007-03-26 00:27:59 +0000 |
---|---|---|
committer | xue <> | 2007-03-26 00:27:59 +0000 |
commit | 0f00e85e311955b3f84dde559da6b5a2ab5c3cda (patch) | |
tree | ccb93c4e2d056c69209307fcb680fc23a9c57370 /framework/Web/Javascripts/prototype/ajax.js | |
parent | cbee2945d1858f7f256b44a3fbfe816dc0202f4d (diff) |
merge from 3.0 branch till 1769.
Diffstat (limited to 'framework/Web/Javascripts/prototype/ajax.js')
-rw-r--r-- | framework/Web/Javascripts/prototype/ajax.js | 286 |
1 files changed, 0 insertions, 286 deletions
diff --git a/framework/Web/Javascripts/prototype/ajax.js b/framework/Web/Javascripts/prototype/ajax.js deleted file mode 100644 index 9fcb473b..00000000 --- a/framework/Web/Javascripts/prototype/ajax.js +++ /dev/null @@ -1,286 +0,0 @@ -var Ajax = { - getTransport: function() { - return Try.these( - function() {return new XMLHttpRequest()}, - function() {return new ActiveXObject('Msxml2.XMLHTTP')}, - function() {return new ActiveXObject('Microsoft.XMLHTTP')} - ) || false; - }, - - activeRequestCount: 0 -} - -Ajax.Responders = { - responders: [], - - _each: function(iterator) { - this.responders._each(iterator); - }, - - register: function(responderToAdd) { - if (!this.include(responderToAdd)) - this.responders.push(responderToAdd); - }, - - unregister: function(responderToRemove) { - this.responders = this.responders.without(responderToRemove); - }, - - dispatch: function(callback, request, transport, json) { - this.each(function(responder) { - if (responder[callback] && typeof responder[callback] == 'function') { - try { - responder[callback].apply(responder, [request, transport, json]); - } catch (e) {} - } - }); - } -}; - -Object.extend(Ajax.Responders, Enumerable); - -Ajax.Responders.register({ - onCreate: function() { - Ajax.activeRequestCount++; - }, - - onComplete: function() { - Ajax.activeRequestCount--; - } -}); - -Ajax.Base = function() {}; -Ajax.Base.prototype = { - setOptions: function(options) { - this.options = { - method: 'post', - asynchronous: true, - contentType: 'application/x-www-form-urlencoded', - parameters: '' - } - Object.extend(this.options, options || {}); - }, - - responseIsSuccess: function() { - return this.transport.status == undefined - || this.transport.status == 0 - || (this.transport.status >= 200 && this.transport.status < 300); - }, - - responseIsFailure: function() { - return !this.responseIsSuccess(); - } -} - -Ajax.Request = Class.create(); -Ajax.Request.Events = - ['Uninitialized', 'Loading', 'Loaded', 'Interactive', 'Complete']; - -Ajax.Request.prototype = Object.extend(new Ajax.Base(), { - initialize: function(url, options) { - this.transport = Ajax.getTransport(); - this.setOptions(options); - this.request(url); - }, - - request: function(url) { - var parameters = this.options.parameters || ''; - if (parameters.length > 0) parameters += '&_='; - - try { - this.url = url; - if (this.options.method == 'get' && parameters.length > 0) - this.url += (this.url.match(/\?/) ? '&' : '?') + parameters; - - Ajax.Responders.dispatch('onCreate', this, this.transport); - - this.transport.open(this.options.method, this.url, - this.options.asynchronous); - - if (this.options.asynchronous) { - this.transport.onreadystatechange = this.onStateChange.bind(this); - setTimeout((function() {this.respondToReadyState(1)}).bind(this), 10); - } - - this.setRequestHeaders(); - - var body = this.options.postBody ? this.options.postBody : parameters; - this.transport.send(this.options.method == 'post' ? body : null); - - } catch (e) { - this.dispatchException(e); - } - }, - - setRequestHeaders: function() { - var requestHeaders = - ['X-Requested-With', 'XMLHttpRequest', - 'X-Prototype-Version', Prototype.Version, - 'Accept', 'text/javascript, text/html, application/xml, text/xml']; - - if (this.options.method == 'post') { - requestHeaders.push('Content-type', this.options.contentType); - - /* Force "Connection: close" for Mozilla browsers to work around - * a bug where XMLHttpReqeuest sends an incorrect Content-length - * header. See Mozilla Bugzilla #246651. - */ - if (this.transport.overrideMimeType) - requestHeaders.push('Connection', 'close'); - } - - if (this.options.requestHeaders) - requestHeaders.push.apply(requestHeaders, this.options.requestHeaders); - - for (var i = 0; i < requestHeaders.length; i += 2) - this.transport.setRequestHeader(requestHeaders[i], requestHeaders[i+1]); - }, - - onStateChange: function() { - var readyState = this.transport.readyState; - if (readyState != 1) - this.respondToReadyState(this.transport.readyState); - }, - - header: function(name) { - try { - return this.transport.getResponseHeader(name); - } catch (e) {} - }, - - evalJSON: function() { - try { - return eval('(' + this.header('X-JSON') + ')'); - } catch (e) {} - }, - - evalResponse: function() { - try { - return eval(this.transport.responseText); - } catch (e) { - this.dispatchException(e); - } - }, - - respondToReadyState: function(readyState) { - var event = Ajax.Request.Events[readyState]; - var transport = this.transport, json = this.evalJSON(); - - if (event == 'Complete') { - try { - (this.options['on' + this.transport.status] - || this.options['on' + (this.responseIsSuccess() ? 'Success' : 'Failure')] - || Prototype.emptyFunction)(transport, json); - } catch (e) { - this.dispatchException(e); - } - - if ((this.header('Content-type') || '').match(/^text\/javascript/i)) - this.evalResponse(); - } - - try { - (this.options['on' + event] || Prototype.emptyFunction)(transport, json); - Ajax.Responders.dispatch('on' + event, this, transport, json); - } catch (e) { - this.dispatchException(e); - } - - /* Avoid memory leak in MSIE: clean up the oncomplete event handler */ - if (event == 'Complete') - this.transport.onreadystatechange = Prototype.emptyFunction; - }, - - dispatchException: function(exception) { - (this.options.onException || Prototype.emptyFunction)(this, exception); - Ajax.Responders.dispatch('onException', this, exception); - } -}); - -Ajax.Updater = Class.create(); - -Object.extend(Object.extend(Ajax.Updater.prototype, Ajax.Request.prototype), { - initialize: function(container, url, options) { - this.containers = { - success: container.success ? $(container.success) : $(container), - failure: container.failure ? $(container.failure) : - (container.success ? null : $(container)) - } - - this.transport = Ajax.getTransport(); - this.setOptions(options); - - var onComplete = this.options.onComplete || Prototype.emptyFunction; - this.options.onComplete = (function(transport, object) { - this.updateContent(); - onComplete(transport, object); - }).bind(this); - - this.request(url); - }, - - updateContent: function() { - var receiver = this.responseIsSuccess() ? - this.containers.success : this.containers.failure; - var response = this.transport.responseText; - - if (!this.options.evalScripts) - response = response.stripScripts(); - - if (receiver) { - if (this.options.insertion) { - new this.options.insertion(receiver, response); - } else { - Element.update(receiver, response); - } - } - - if (this.responseIsSuccess()) { - if (this.onComplete) - setTimeout(this.onComplete.bind(this), 10); - } - } -}); - -Ajax.PeriodicalUpdater = Class.create(); -Ajax.PeriodicalUpdater.prototype = Object.extend(new Ajax.Base(), { - initialize: function(container, url, options) { - this.setOptions(options); - this.onComplete = this.options.onComplete; - - this.frequency = (this.options.frequency || 2); - this.decay = (this.options.decay || 1); - - this.updater = {}; - this.container = container; - this.url = url; - - this.start(); - }, - - start: function() { - this.options.onComplete = this.updateComplete.bind(this); - this.onTimerEvent(); - }, - - stop: function() { - this.updater.onComplete = undefined; - clearTimeout(this.timer); - (this.onComplete || Prototype.emptyFunction).apply(this, arguments); - }, - - updateComplete: function(request) { - if (this.options.decay) { - this.decay = (request.responseText == this.lastText ? - this.decay * this.options.decay : 1); - - this.lastText = request.responseText; - } - this.timer = setTimeout(this.onTimerEvent.bind(this), - this.decay * this.frequency * 1000); - }, - - onTimerEvent: function() { - this.updater = new Ajax.Updater(this.container, this.url, this.options); - } -}); |