/**
- * @class Ext.util.Observable
- */
-Ext.apply(Ext.util.Observable.prototype, function(){
- // this is considered experimental (along with beforeMethod, afterMethod, removeMethodListener?)
- // allows for easier interceptor and sequences, including cancelling and overwriting the return value of the call
- // private
- function getMethodEvent(method){
- var e = (this.methodEvents = this.methodEvents ||
- {})[method], returnValue, v, cancel, obj = this;
-
- if (!e) {
- this.methodEvents[method] = e = {};
- e.originalFn = this[method];
- e.methodName = method;
- e.before = [];
- e.after = [];
-
- var makeCall = function(fn, scope, args){
- if (!Ext.isEmpty(v = fn.apply(scope || obj, args))) {
- if (Ext.isObject(v)) {
- returnValue = !Ext.isEmpty(v.returnValue) ? v.returnValue : v;
- cancel = !!v.cancel;
- }
- else
- if (v === false) {
- cancel = true;
- }
- else {
- returnValue = v;
- }
- }
- };
-
- this[method] = function(){
- var args = Ext.toArray(arguments);
- returnValue = v = undefined;
- cancel = false;
-
- Ext.each(e.before, function(b){
- makeCall(b.fn, b.scope, args);
- if (cancel) {
- return returnValue;
- }
- });
-
- if (!Ext.isEmpty(v = e.originalFn.apply(obj, args))) {
- returnValue = v;
- }
- Ext.each(e.after, function(a){
- makeCall(a.fn, a.scope, args);
- if (cancel) {
- return returnValue;
- }
- });
- return returnValue;
- };
- }
- return e;
- }
-
- return {
- // these are considered experimental
- // allows for easier interceptor and sequences, including cancelling and overwriting the return value of the call
- // adds an 'interceptor' called before the original method
- beforeMethod : function(method, fn, scope){
- getMethodEvent.call(this, method).before.push({
- fn: fn,
- scope: scope
- });
- },
-
- // adds a 'sequence' called after the original method
- afterMethod : function(method, fn, scope){
- getMethodEvent.call(this, method).after.push({
- fn: fn,
- scope: scope
- });
- },
-
- removeMethodListener: function(method, fn, scope){
- var e = getMethodEvent.call(this, method), found = false;
- Ext.each(e.before, function(b, i, arr){
- if (b.fn == fn && b.scope == scope) {
- arr.splice(i, 1);
- found = true;
- return false;
- }
- });
- if (!found) {
- Ext.each(e.after, function(a, i, arr){
- if (a.fn == fn && a.scope == scope) {
- arr.splice(i, 1);
- return false;
- }
- });
- }
- },
-
- /**
- * Relays selected events from the specified Observable as if the events were fired by this.
- * @param {Object} o The Observable whose events this object is to relay.
- * @param {Array} events Array of event names to relay.
- */
- relayEvents : function(o, events){
- var me = this;
- function createHandler(ename){
- return function(){
- return me.fireEvent.apply(me, [ename].concat(Ext.toArray(arguments)));
- };
- }
- Ext.each(events, function(ename){
- me.events[ename] = me.events[ename] || true;
- o.on(ename, createHandler(ename), me);
- });
- },
-
- /**
- * Enables events fired by this Observable to bubble up an owner hierarchy by calling
- * this.getBubbleTarget() if present. There is no implementation in the Observable base class.
- * This is commonly used by Ext.Components to bubble events to owner Containers. See {@link Ext.Component.getBubbleTarget}. The default
- * implementation in Ext.Component returns the Component's immediate owner. But if a known target is required, this can be overridden to
- * access the required target more quickly.
- * Example:
-Ext.override(Ext.form.Field, {
- // Add functionality to Field's initComponent to enable the change event to bubble
- initComponent : Ext.form.Field.prototype.initComponent.createSequence(function() {
- this.enableBubble('change');
- }),
-
- // We know that we want Field's events to bubble directly to the FormPanel.
- getBubbleTarget : function() {
- if (!this.formPanel) {
- this.formPanel = this.findParentByType('form');
- }
- return this.formPanel;
- }
-});
-
-var myForm = new Ext.formPanel({
- title: 'User Details',
- items: [{
- ...
- }],
- listeners: {
- change: function() {
- // Title goes red if form has been modified.
- myForm.header.setStyle('color', 'red');
- }
- }
-});
-
- * @param {String/Array} events The event name to bubble, or an Array of event names.
- */
- enableBubble : function(events){
- var me = this;
- if(!Ext.isEmpty(events)){
- events = Ext.isArray(events) ? events : Ext.toArray(arguments);
- Ext.each(events, function(ename){
- ename = ename.toLowerCase();
- var ce = me.events[ename] || true;
- if (Ext.isBoolean(ce)) {
- ce = new Ext.util.Event(me, ename);
- me.events[ename] = ce;
- }
- ce.bubble = true;
- });
- }
- }
- };
-}());
-
-
-/**
- * Starts capture on the specified Observable. All events will be passed
- * to the supplied function with the event name + standard signature of the event
- * before the event is fired. If the supplied function returns false,
- * the event will not fire.
- * @param {Observable} o The Observable to capture events from.
- * @param {Function} fn The function to call when an event is fired.
- * @param {Object} scope (optional) The scope (this reference) in which the function is executed. Defaults to the Observable firing the event.
- * @static
- */
-Ext.util.Observable.capture = function(o, fn, scope){
- o.fireEvent = o.fireEvent.createInterceptor(fn, scope);
-};
-
-
-/**
- * Sets observability on the passed class constructor.
- *
This makes any event fired on any instance of the passed class also fire a single event through
- * the class allowing for central handling of events on many instances at once.
- * Usage:
-Ext.util.Observable.observeClass(Ext.data.Connection);
-Ext.data.Connection.on('beforerequest', function(con, options) {
- console.log('Ajax request made to ' + options.url);
-});
- * @param {Function} c The class constructor to make observable.
- * @param {Object} listeners An object containing a series of listeners to add. See {@link #addListener}.
- * @static
- */
-Ext.util.Observable.observeClass = function(c, listeners){
- if(c){
- if(!c.fireEvent){
- Ext.apply(c, new Ext.util.Observable());
- Ext.util.Observable.capture(c.prototype, c.fireEvent, c);
- }
- if(Ext.isObject(listeners)){
- c.on(listeners);
- }
- return c;
- }
-};
-
+
+
+
+ /*!
+ * Ext JS Library 3.2.1
+ * Copyright(c) 2006-2010 Ext JS, Inc.
+ * licensing@extjs.com
+ * http://www.extjs.com/license
+ */
+/**
+ * @class Ext.util.Observable
+ */
+Ext.apply(Ext.util.Observable.prototype, function(){
+ // this is considered experimental (along with beforeMethod, afterMethod, removeMethodListener?)
+ // allows for easier interceptor and sequences, including cancelling and overwriting the return value of the call
+ // private
+ function getMethodEvent(method){
+ var e = (this.methodEvents = this.methodEvents ||
+ {})[method], returnValue, v, cancel, obj = this;
+
+ if (!e) {
+ this.methodEvents[method] = e = {};
+ e.originalFn = this[method];
+ e.methodName = method;
+ e.before = [];
+ e.after = [];
+
+ var makeCall = function(fn, scope, args){
+ if((v = fn.apply(scope || obj, args)) !== undefined){
+ if (typeof v == 'object') {
+ if(v.returnValue !== undefined){
+ returnValue = v.returnValue;
+ }else{
+ returnValue = v;
+ }
+ cancel = !!v.cancel;
+ }
+ else
+ if (v === false) {
+ cancel = true;
+ }
+ else {
+ returnValue = v;
+ }
+ }
+ };
+
+ this[method] = function(){
+ var args = Array.prototype.slice.call(arguments, 0),
+ b;
+ returnValue = v = undefined;
+ cancel = false;
+
+ for(var i = 0, len = e.before.length; i < len; i++){
+ b = e.before[i];
+ makeCall(b.fn, b.scope, args);
+ if (cancel) {
+ return returnValue;
+ }
+ }
+
+ if((v = e.originalFn.apply(obj, args)) !== undefined){
+ returnValue = v;
+ }
+
+ for(var i = 0, len = e.after.length; i < len; i++){
+ b = e.after[i];
+ makeCall(b.fn, b.scope, args);
+ if (cancel) {
+ return returnValue;
+ }
+ }
+ return returnValue;
+ };
+ }
+ return e;
+ }
+
+ return {
+ // these are considered experimental
+ // allows for easier interceptor and sequences, including cancelling and overwriting the return value of the call
+ // adds an 'interceptor' called before the original method
+ beforeMethod : function(method, fn, scope){
+ getMethodEvent.call(this, method).before.push({
+ fn: fn,
+ scope: scope
+ });
+ },
+
+ // adds a 'sequence' called after the original method
+ afterMethod : function(method, fn, scope){
+ getMethodEvent.call(this, method).after.push({
+ fn: fn,
+ scope: scope
+ });
+ },
+
+ removeMethodListener: function(method, fn, scope){
+ var e = this.getMethodEvent(method);
+ for(var i = 0, len = e.before.length; i < len; i++){
+ if(e.before[i].fn == fn && e.before[i].scope == scope){
+ e.before.splice(i, 1);
+ return;
+ }
+ }
+ for(var i = 0, len = e.after.length; i < len; i++){
+ if(e.after[i].fn == fn && e.after[i].scope == scope){
+ e.after.splice(i, 1);
+ return;
+ }
+ }
+ },
+
+ /**
+ * Relays selected events from the specified Observable as if the events were fired by this.
+ * @param {Object} o The Observable whose events this object is to relay.
+ * @param {Array} events Array of event names to relay.
+ */
+ relayEvents : function(o, events){
+ var me = this;
+ function createHandler(ename){
+ return function(){
+ return me.fireEvent.apply(me, [ename].concat(Array.prototype.slice.call(arguments, 0)));
+ };
+ }
+ for(var i = 0, len = events.length; i < len; i++){
+ var ename = events[i];
+ me.events[ename] = me.events[ename] || true;
+ o.on(ename, createHandler(ename), me);
+ }
+ },
+
+ /**
+ * Enables events fired by this Observable to bubble up an owner hierarchy by calling
+ * this.getBubbleTarget() if present. There is no implementation in the Observable base class.
+ * This is commonly used by Ext.Components to bubble events to owner Containers. See {@link Ext.Component.getBubbleTarget}. The default
+ * implementation in Ext.Component returns the Component's immediate owner. But if a known target is required, this can be overridden to
+ * access the required target more quickly.
+ * Example:
+Ext.override(Ext.form.Field, {
+ // Add functionality to Field's initComponent to enable the change event to bubble
+ initComponent : Ext.form.Field.prototype.initComponent.createSequence(function() {
+ this.enableBubble('change');
+ }),
+
+ // We know that we want Field's events to bubble directly to the FormPanel.
+ getBubbleTarget : function() {
+ if (!this.formPanel) {
+ this.formPanel = this.findParentByType('form');
+ }
+ return this.formPanel;
+ }
+});
+
+var myForm = new Ext.formPanel({
+ title: 'User Details',
+ items: [{
+ ...
+ }],
+ listeners: {
+ change: function() {
+ // Title goes red if form has been modified.
+ myForm.header.setStyle('color', 'red');
+ }
+ }
+});
+
+ * @param {String/Array} events The event name to bubble, or an Array of event names.
+ */
+ enableBubble : function(events){
+ var me = this;
+ if(!Ext.isEmpty(events)){
+ events = Ext.isArray(events) ? events : Array.prototype.slice.call(arguments, 0);
+ for(var i = 0, len = events.length; i < len; i++){
+ var ename = events[i];
+ ename = ename.toLowerCase();
+ var ce = me.events[ename] || true;
+ if (typeof ce == 'boolean') {
+ ce = new Ext.util.Event(me, ename);
+ me.events[ename] = ce;
+ }
+ ce.bubble = true;
+ }
+ }
+ }
+ };
+}());
+
+
+/**
+ * Starts capture on the specified Observable. All events will be passed
+ * to the supplied function with the event name + standard signature of the event
+ * before the event is fired. If the supplied function returns false,
+ * the event will not fire.
+ * @param {Observable} o The Observable to capture events from.
+ * @param {Function} fn The function to call when an event is fired.
+ * @param {Object} scope (optional) The scope (this reference) in which the function is executed. Defaults to the Observable firing the event.
+ * @static
+ */
+Ext.util.Observable.capture = function(o, fn, scope){
+ o.fireEvent = o.fireEvent.createInterceptor(fn, scope);
+};
+
+
+/**
+ * Sets observability on the passed class constructor.
+ *
This makes any event fired on any instance of the passed class also fire a single event through
+ * the class allowing for central handling of events on many instances at once.
+ * Usage:
+Ext.util.Observable.observeClass(Ext.data.Connection);
+Ext.data.Connection.on('beforerequest', function(con, options) {
+ console.log('Ajax request made to ' + options.url);
+});
+ * @param {Function} c The class constructor to make observable.
+ * @param {Object} listeners An object containing a series of listeners to add. See {@link #addListener}.
+ * @static
+ */
+Ext.util.Observable.observeClass = function(c, listeners){
+ if(c){
+ if(!c.fireEvent){
+ Ext.apply(c, new Ext.util.Observable());
+ Ext.util.Observable.capture(c.prototype, c.fireEvent, c);
+ }
+ if(typeof listeners == 'object'){
+ c.on(listeners);
+ }
+ return c;
+ }
+};
+
+
\ No newline at end of file