/**
+ * @class Ext.form.action.Action
+ * @extends Ext.Base
+ * <p>The subclasses of this class provide actions to perform upon {@link Ext.form.Basic Form}s.</p>
+ * <p>Instances of this class are only created by a {@link Ext.form.Basic Form} when
+ * the Form needs to perform an action such as submit or load. The Configuration options
+ * listed for this class are set through the Form's action methods: {@link Ext.form.Basic#submit submit},
+ * {@link Ext.form.Basic#load load} and {@link Ext.form.Basic#doAction doAction}</p>
+ * <p>The instance of Action which performed the action is passed to the success
+ * and failure callbacks of the Form's action methods ({@link Ext.form.Basic#submit submit},
+ * {@link Ext.form.Basic#load load} and {@link Ext.form.Basic#doAction doAction}),
+ * and to the {@link Ext.form.Basic#actioncomplete actioncomplete} and
+ * {@link Ext.form.Basic#actionfailed actionfailed} event handlers.</p>
+ * @constructor
+ * @param {Object} config The configuration for this instance.
+ */
+Ext.define('Ext.form.action.Action', {
+ alternateClassName: 'Ext.form.Action',
+
+ /**
+ * @cfg {Ext.form.Basic} form The {@link Ext.form.Basic BasicForm} instance that
+ * is invoking this Action. Required.
+ */
+
+ /**
+ * @cfg {String} url The URL that the Action is to invoke. Will default to the {@link Ext.form.Basic#url url}
+ * configured on the {@link #form}.
+ */
+
+ /**
+ * @cfg {Boolean} reset When set to <tt><b>true</b></tt>, causes the Form to be
+ * {@link Ext.form.Basic#reset reset} on Action success. If specified, this happens
+ * before the {@link #success} callback is called and before the Form's
+ * {@link Ext.form.Basic#actioncomplete actioncomplete} event fires.
+ */
+
+ /**
+ * @cfg {String} method The HTTP method to use to access the requested URL. Defaults to the
+ * {@link Ext.form.Basic#method BasicForm's method}, or 'POST' if not specified.
+ */
+
+ /**
+ * @cfg {Object/String} params <p>Extra parameter values to pass. These are added to the Form's
+ * {@link Ext.form.Basic#baseParams} and passed to the specified URL along with the Form's
+ * input fields.</p>
+ * <p>Parameters are encoded as standard HTTP parameters using {@link Ext#urlEncode Ext.Object.toQueryString}.</p>
+ */
+
+ /**
+ * @cfg {Object} headers <p>Extra headers to be sent in the AJAX request for submit and load actions. See
+ * {@link Ext.data.Connection#headers}.</p>
+ */
+
+ /**
+ * @cfg {Number} timeout The number of seconds to wait for a server response before
+ * failing with the {@link #failureType} as {@link Ext.form.action.Action#CONNECT_FAILURE}. If not specified,
+ * defaults to the configured <tt>{@link Ext.form.Basic#timeout timeout}</tt> of the
+ * {@link #form}.
+ */
+
+ /**
+ * @cfg {Function} success The function to call when a valid success return packet is received.
+ * The function is passed the following parameters:<ul class="mdetail-params">
+ * <li><b>form</b> : Ext.form.Basic<div class="sub-desc">The form that requested the action</div></li>
+ * <li><b>action</b> : Ext.form.action.Action<div class="sub-desc">The Action class. The {@link #result}
+ * property of this object may be examined to perform custom postprocessing.</div></li>
+ * </ul>
+ */
+
+ /**
+ * @cfg {Function} failure The function to call when a failure packet was received, or when an
+ * error ocurred in the Ajax communication.
+ * The function is passed the following parameters:<ul class="mdetail-params">
+ * <li><b>form</b> : Ext.form.Basic<div class="sub-desc">The form that requested the action</div></li>
+ * <li><b>action</b> : Ext.form.action.Action<div class="sub-desc">The Action class. If an Ajax
+ * error ocurred, the failure type will be in {@link #failureType}. The {@link #result}
+ * property of this object may be examined to perform custom postprocessing.</div></li>
+ * </ul>
+ */
+
+ /**
+ * @cfg {Object} scope The scope in which to call the configured <tt>success</tt> and <tt>failure</tt>
+ * callback functions (the <tt>this</tt> reference for the callback functions).
+ */
+
+ /**
+ * @cfg {String} waitMsg The message to be displayed by a call to {@link Ext.window.MessageBox#wait}
+ * during the time the action is being processed.
+ */
+
+ /**
+ * @cfg {String} waitTitle The title to be displayed by a call to {@link Ext.window.MessageBox#wait}
+ * during the time the action is being processed.
+ */
+
+ /**
+ * @cfg {Boolean} submitEmptyText If set to <tt>true</tt>, the emptyText value will be sent with the form
+ * when it is submitted. Defaults to <tt>true</tt>.
+ */
+
+ /**
+ * @property type
+ * The type of action this Action instance performs.
+ * Currently only "submit" and "load" are supported.
+ * @type {String}
+ */
+
+ /**
+ * The type of failure detected will be one of these: {@link Ext.form.action.Action#CLIENT_INVALID},
+ * {@link Ext.form.action.Action#SERVER_INVALID}, {@link Ext.form.action.Action#CONNECT_FAILURE}, or
+ * {@link Ext.form.action.Action#LOAD_FAILURE}. Usage:
+ * <pre><code>
+var fp = new Ext.form.Panel({
+...
+buttons: [{
+ text: 'Save',
+ formBind: true,
+ handler: function(){
+ if(fp.getForm().isValid()){
+ fp.getForm().submit({
+ url: 'form-submit.php',
+ waitMsg: 'Submitting your data...',
+ success: function(form, action){
+ // server responded with success = true
+ var result = action.{@link #result};
+ },
+ failure: function(form, action){
+ if (action.{@link #failureType} === {@link Ext.form.action.Action#CONNECT_FAILURE}) {
+ Ext.Msg.alert('Error',
+ 'Status:'+action.{@link #response}.status+': '+
+ action.{@link #response}.statusText);
+ }
+ if (action.failureType === {@link Ext.form.action.Action#SERVER_INVALID}){
+ // server responded with success = false
+ Ext.Msg.alert('Invalid', action.{@link #result}.errormsg);
+ }
+ }
+ });
+ }
+ }
+},{
+ text: 'Reset',
+ handler: function(){
+ fp.getForm().reset();
+ }
+}]
+ * </code></pre>
+ * @property failureType
+ * @type {String}
+ */
+
+ /**
+ * The raw XMLHttpRequest object used to perform the action.
+ * @property response
+ * @type {Object}
+ */
+
+ /**
+ * The decoded response object containing a boolean <tt>success</tt> property and
+ * other, action-specific properties.
+ * @property result
+ * @type {Object}
+ */
+
+
+
+ constructor: function(config) {
+ if (config) {
+ Ext.apply(this, config);
+ }
+
+ // Normalize the params option to an Object
+ var params = config.params;
+ if (Ext.isString(params)) {
+ this.params = Ext.Object.fromQueryString(params);
+ }
+ },
+
+ /**
+ * Invokes this action using the current configuration.
+ */
+ run: Ext.emptyFn,
+
+ /**
+ * @private
+ * @method onSuccess
+ * Callback method that gets invoked when the action completes successfully. Must be implemented by subclasses.
+ * @param {Object} response
+ */
+
+ /**
+ * @private
+ * @method handleResponse
+ * Handles the raw response and builds a result object from it. Must be implemented by subclasses.
+ * @param {Object} response
+ */
+
+ /**
+ * @private
+ * Handles a failure response.
+ * @param {Object} response
+ */
+ onFailure : function(response){
+ this.response = response;
+ this.failureType = Ext.form.action.Action.CONNECT_FAILURE;
+ this.form.afterAction(this, false);
+ },
+
+ /**
+ * @private
+ * Validates that a response contains either responseText or responseXML and invokes
+ * {@link #handleResponse} to build the result object.
+ * @param {Object} response The raw response object.
+ * @return {Object/Boolean} result The result object as built by handleResponse, or <tt>true</tt> if
+ * the response had empty responseText and responseXML.
+ */
+ processResponse : function(response){
+ this.response = response;
+ if (!response.responseText && !response.responseXML) {
+ return true;
+ }
+ return (this.result = this.handleResponse(response));
+ },
+
+ /**
+ * @private
+ * Build the URL for the AJAX request. Used by the standard AJAX submit and load actions.
+ * @return {String} The URL.
+ */
+ getUrl: function() {
+ return this.url || this.form.url;
+ },
+
+ /**
+ * @private
+ * Determine the HTTP method to be used for the request.
+ * @return {String} The HTTP method
+ */
+ getMethod: function() {
+ return (this.method || this.form.method || 'POST').toUpperCase();
+ },
+
+ /**
+ * @private
+ * Get the set of parameters specified in the BasicForm's baseParams and/or the params option.
+ * Items in params override items of the same name in baseParams.
+ * @return {Object} the full set of parameters
+ */
+ getParams: function() {
+ return Ext.apply({}, this.params, this.form.baseParams);
+ },
+
+ /**
+ * @private
+ * Creates a callback object.
+ */
+ createCallback: function() {
+ var me = this,
+ undef,
+ form = me.form;
+ return {
+ success: me.onSuccess,
+ failure: me.onFailure,
+ scope: me,
+ timeout: (this.timeout * 1000) || (form.timeout * 1000),
+ upload: form.fileUpload ? me.onSuccess : undef
+ };
+ },
+
+ statics: {
+ /**
+ * @property CLIENT_INVALID
+ * Failure type returned when client side validation of the Form fails
+ * thus aborting a submit action. Client side validation is performed unless
+ * {@link Ext.form.action.Submit#clientValidation} is explicitly set to <tt>false</tt>.
+ * @type {String}
+ * @static
+ */
+ CLIENT_INVALID: 'client',
+
+ /**
+ * @property SERVER_INVALID
+ * <p>Failure type returned when server side processing fails and the {@link #result}'s
+ * <tt>success</tt> property is set to <tt>false</tt>.</p>
+ * <p>In the case of a form submission, field-specific error messages may be returned in the
+ * {@link #result}'s <tt>errors</tt> property.</p>
+ * @type {String}
+ * @static
+ */
+ SERVER_INVALID: 'server',
+
+ /**
+ * @property CONNECT_FAILURE
+ * Failure type returned when a communication error happens when attempting
+ * to send a request to the remote server. The {@link #response} may be examined to
+ * provide further information.
+ * @type {String}
+ * @static
+ */
+ CONNECT_FAILURE: 'connect',
+
+ /**
+ * @property LOAD_FAILURE
+ * Failure type returned when the response's <tt>success</tt>
+ * property is set to <tt>false</tt>, or no field values are returned in the response's
+ * <tt>data</tt> property.
+ * @type {String}
+ * @static
+ */
+ LOAD_FAILURE: 'load'
+
+
+ }
+});
+