/**
- * @class Ext.util.Observable
- * Base class that provides a common interface for publishing events. Subclasses are expected to
- * to have a property "events" with all the events defined, and, optionally, a property "listeners"
- * with configured listeners defined.<br>
+ * Base class that provides a common interface for publishing events. Subclasses are expected to to have a property
+ * "events" with all the events defined, and, optionally, a property "listeners" with configured listeners defined.
+ *
* For example:
- * <pre><code>
-Ext.define('Employee', {
- extend: 'Ext.util.Observable',
- constructor: function(config){
- this.name = config.name;
- this.addEvents({
- "fired" : true,
- "quit" : true
- });
-
- // Copy configured listeners into *this* object so that the base class's
- // constructor will add them.
- this.listeners = config.listeners;
-
- // Call our superclass constructor to complete construction process.
- Employee.superclass.constructor.call(this, config)
- }
-});
-</code></pre>
- * This could then be used like this:<pre><code>
-var newEmployee = new Employee({
- name: employeeName,
- listeners: {
- quit: function() {
- // By default, "this" will be the object that fired the event.
- alert(this.name + " has quit!");
- }
- }
-});
-</code></pre>
+ *
+ * Ext.define('Employee', {
+ * extend: 'Ext.util.Observable',
+ * constructor: function(config){
+ * this.name = config.name;
+ * this.addEvents({
+ * "fired" : true,
+ * "quit" : true
+ * });
+ *
+ * // Copy configured listeners into *this* object so that the base class's
+ * // constructor will add them.
+ * this.listeners = config.listeners;
+ *
+ * // Call our superclass constructor to complete construction process.
+ * this.callParent(arguments)
+ * }
+ * });
+ *
+ * This could then be used like this:
+ *
+ * var newEmployee = new Employee({
+ * name: employeeName,
+ * listeners: {
+ * quit: function() {
+ * // By default, "this" will be the object that fired the event.
+ * alert(this.name + " has quit!");
+ * }
+ * }
+ * });
*/
-
Ext.define('Ext.util.Observable', {
/* Begin Definitions */
@@ -60,46 +58,47 @@ Ext.define('Ext.util.Observable', {
requires: ['Ext.util.Event'],
statics: {
- /**
- * Removes <b>all</b> added captures from the Observable.
- * @param {Observable} o The Observable to release
+ /**
+ * Removes **all** added captures from the Observable.
+ *
+ * @param {Ext.util.Observable} o The Observable to release
* @static
*/
releaseCapture: function(o) {
o.fireEvent = this.prototype.fireEvent;
},
- /**
- * Starts capture on the specified Observable. All events will be passed
- * to the supplied function with the event name + standard signature of the event
- * <b>before</b> the event is fired. If the supplied function returns false,
+ /**
+ * 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 {Ext.util.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 (<code>this</code> reference) in which the function is executed. Defaults to the Observable firing the event.
+ * @param {Object} scope (optional) The scope (`this` reference) in which the function is executed. Defaults to
+ * the Observable firing the event.
* @static
*/
capture: function(o, fn, scope) {
o.fireEvent = Ext.Function.createInterceptor(o.fireEvent, 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.observe(Ext.data.Connection);
- Ext.data.Connection.on('beforerequest', function(con, options) {
- console.log('Ajax request made to ' + options.url);
- });
-
+ /**
+ * 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.observe(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
- * @markdown
*/
observe: function(cls, listeners) {
if (cls) {
@@ -118,36 +117,38 @@ Usage:
/* End Definitions */
/**
- * @cfg {Object} listeners (optional) <p>A config object containing one or more event handlers to be added to this
- * object during initialization. This should be a valid listeners config object as specified in the
- * {@link #addListener} example for attaching multiple handlers at once.</p>
- * <br><p><b><u>DOM events from ExtJs {@link Ext.Component Components}</u></b></p>
- * <br><p>While <i>some</i> ExtJs Component classes export selected DOM events (e.g. "click", "mouseover" etc), this
- * is usually only done when extra value can be added. For example the {@link Ext.view.View DataView}'s
- * <b><code>{@link Ext.view.View#click click}</code></b> event passing the node clicked on. To access DOM
- * events directly from a child element of a Component, we need to specify the <code>element</code> option to
- * identify the Component property to add a DOM listener to:
- * <pre><code>
-new Ext.panel.Panel({
- width: 400,
- height: 200,
- dockedItems: [{
- xtype: 'toolbar'
- }],
- listeners: {
- click: {
- element: 'el', //bind to the underlying el property on the panel
- fn: function(){ console.log('click el'); }
- },
- dblclick: {
- element: 'body', //bind to the underlying body property on the panel
- fn: function(){ console.log('dblclick body'); }
- }
- }
-});
-</code></pre>
- * </p>
- */
+ * @cfg {Object} listeners
+ *
+ * A config object containing one or more event handlers to be added to this object during initialization. This
+ * should be a valid listeners config object as specified in the {@link #addListener} example for attaching multiple
+ * handlers at once.
+ *
+ * **DOM events from Ext JS {@link Ext.Component Components}**
+ *
+ * While _some_ Ext JS Component classes export selected DOM events (e.g. "click", "mouseover" etc), this is usually
+ * only done when extra value can be added. For example the {@link Ext.view.View DataView}'s **`{@link
+ * Ext.view.View#itemclick itemclick}`** event passing the node clicked on. To access DOM events directly from a
+ * child element of a Component, we need to specify the `element` option to identify the Component property to add a
+ * DOM listener to:
+ *
+ * new Ext.panel.Panel({
+ * width: 400,
+ * height: 200,
+ * dockedItems: [{
+ * xtype: 'toolbar'
+ * }],
+ * listeners: {
+ * click: {
+ * element: 'el', //bind to the underlying el property on the panel
+ * fn: function(){ console.log('click el'); }
+ * },
+ * dblclick: {
+ * element: 'body', //bind to the underlying body property on the panel
+ * fn: function(){ console.log('dblclick body'); }
+ * }
+ * }
+ * });
+ */
// @private
isObservable: true,
@@ -167,26 +168,26 @@ new Ext.panel.Panel({
},
// @private
- eventOptionsRe : /^(?:scope|delay|buffer|single|stopEvent|preventDefault|stopPropagation|normalized|args|delegate|element|vertical|horizontal)$/,
+ eventOptionsRe : /^(?:scope|delay|buffer|single|stopEvent|preventDefault|stopPropagation|normalized|args|delegate|element|vertical|horizontal|freezeEvent)$/,
/**
- * <p>Adds listeners to any Observable object (or Element) which are automatically removed when this Component
- * is destroyed.
- * @param {Observable/Element} item The item to which to add a listener/listeners.
+ * Adds listeners to any Observable object (or Ext.Element) which are automatically removed when this Component is
+ * destroyed.
+ *
+ * @param {Ext.util.Observable/Ext.Element} item The item to which to add a listener/listeners.
* @param {Object/String} ename The event name, or an object containing event name properties.
- * @param {Function} fn Optional. If the <code>ename</code> parameter was an event name, this
- * is the handler function.
- * @param {Object} scope Optional. If the <code>ename</code> parameter was an event name, this
- * is the scope (<code>this</code> reference) in which the handler function is executed.
- * @param {Object} opt Optional. If the <code>ename</code> parameter was an event name, this
- * is the {@link Ext.util.Observable#addListener addListener} options.
+ * @param {Function} fn (optional) If the `ename` parameter was an event name, this is the handler function.
+ * @param {Object} scope (optional) If the `ename` parameter was an event name, this is the scope (`this` reference)
+ * in which the handler function is executed.
+ * @param {Object} opt (optional) If the `ename` parameter was an event name, this is the
+ * {@link Ext.util.Observable#addListener addListener} options.
*/
addManagedListener : function(item, ename, fn, scope, options) {
var me = this,
managedListeners = me.managedListeners = me.managedListeners || [],
config;
- if (Ext.isObject(ename)) {
+ if (typeof ename !== 'string') {
options = ename;
for (ename in options) {
if (options.hasOwnProperty(ename)) {
@@ -212,14 +213,14 @@ new Ext.panel.Panel({
/**
* Removes listeners that were added by the {@link #mon} method.
- * @param {Observable|Element} item The item from which to remove a listener/listeners.
- * @param {Object|String} ename The event name, or an object containing event name properties.
- * @param {Function} fn Optional. If the <code>ename</code> parameter was an event name, this
- * is the handler function.
- * @param {Object} scope Optional. If the <code>ename</code> parameter was an event name, this
- * is the scope (<code>this</code> reference) in which the handler function is executed.
+ *
+ * @param {Ext.util.Observable/Ext.Element} item The item from which to remove a listener/listeners.
+ * @param {Object/String} ename The event name, or an object containing event name properties.
+ * @param {Function} fn (optional) If the `ename` parameter was an event name, this is the handler function.
+ * @param {Object} scope (optional) If the `ename` parameter was an event name, this is the scope (`this` reference)
+ * in which the handler function is executed.
*/
- removeManagedListener : function(item, ename, fn, scope) {
+ removeManagedListener : function(item, ename, fn, scope) {
var me = this,
options,
config,
@@ -227,7 +228,7 @@ new Ext.panel.Panel({
length,
i;
- if (Ext.isObject(ename)) {
+ if (typeof ename !== 'string') {
options = ename;
for (ename in options) {
if (options.hasOwnProperty(ename)) {
@@ -247,104 +248,164 @@ new Ext.panel.Panel({
},
/**
- * <p>Fires the specified event with the passed parameters (minus the event name).</p>
- * <p>An event may be set to bubble up an Observable parent hierarchy (See {@link Ext.Component#getBubbleTarget})
- * by calling {@link #enableBubble}.</p>
+ * Fires the specified event with the passed parameters (minus the event name, plus the `options` object passed
+ * to {@link #addListener}).
+ *
+ * An event may be set to bubble up an Observable parent hierarchy (See {@link Ext.Component#getBubbleTarget}) by
+ * calling {@link #enableBubble}.
+ *
* @param {String} eventName The name of the event to fire.
* @param {Object...} args Variable number of parameters are passed to handlers.
* @return {Boolean} returns false if any of the handlers return false otherwise it returns true.
*/
- fireEvent: function() {
- var me = this,
- args = Ext.Array.toArray(arguments),
- ename = args[0].toLowerCase(),
- ret = true,
- event = me.events[ename],
- queue = me.eventQueue,
- parent;
-
- if (me.eventsSuspended === true) {
- if (queue) {
- queue.push(args);
- }
- } else if (event && Ext.isObject(event) && event.bubble) {
- if (event.fire.apply(event, args.slice(1)) === false) {
- return false;
- }
- parent = me.getBubbleTarget && me.getBubbleTarget();
- if (parent && parent.isObservable) {
- if (!parent.events[ename] || !Ext.isObject(parent.events[ename]) || !parent.events[ename].bubble) {
- parent.enableBubble(ename);
+ fireEvent: function(eventName) {
+ var name = eventName.toLowerCase(),
+ events = this.events,
+ event = events && events[name],
+ bubbles = event && event.bubble;
+
+ return this.continueFireEvent(name, Ext.Array.slice(arguments, 1), bubbles);
+ },
+
+ /**
+ * Continue to fire event.
+ * @private
+ *
+ * @param {String} eventName
+ * @param {Array} args
+ * @param {Boolean} bubbles
+ */
+ continueFireEvent: function(eventName, args, bubbles) {
+ var target = this,
+ queue, event,
+ ret = true;
+
+ do {
+ if (target.eventsSuspended === true) {
+ if ((queue = target.eventQueue)) {
+ queue.push([eventName, args, bubbles]);
+ }
+ return ret;
+ } else {
+ event = target.events[eventName];
+ // Continue bubbling if event exists and it is `true` or the handler didn't returns false and it
+ // configure to bubble.
+ if (event && event != true) {
+ if ((ret = event.fire.apply(event, args)) === false) {
+ break;
+ }
}
- return parent.fireEvent.apply(parent, args);
}
- } else if (event && Ext.isObject(event)) {
- args.shift();
- ret = event.fire.apply(event, args);
- }
+ } while (bubbles && (target = target.getBubbleParent()));
return ret;
},
+ /**
+ * Gets the bubbling parent for an Observable
+ * @private
+ * @return {Ext.util.Observable} The bubble parent. null is returned if no bubble target exists
+ */
+ getBubbleParent: function(){
+ var me = this, parent = me.getBubbleTarget && me.getBubbleTarget();
+ if (parent && parent.isObservable) {
+ return parent;
+ }
+ return null;
+ },
+
/**
* Appends an event handler to this object.
- * @param {String} eventName The name of the event to listen for. May also be an object who's property names are event names. See
- * @param {Function} handler The method the event invokes.
- * @param {Object} scope (optional) The scope (<code><b>this</b></code> reference) in which the handler function is executed.
- * <b>If omitted, defaults to the object which fired the event.</b>
- * @param {Object} options (optional) An object containing handler configuration.
- * properties. This may contain any of the following properties:<ul>
- * <li><b>scope</b> : Object<div class="sub-desc">The scope (<code><b>this</b></code> reference) in which the handler function is executed.
- * <b>If omitted, defaults to the object which fired the event.</b></div></li>
- * <li><b>delay</b> : Number<div class="sub-desc">The number of milliseconds to delay the invocation of the handler after the event fires.</div></li>
- * <li><b>single</b> : Boolean<div class="sub-desc">True to add a handler to handle just the next firing of the event, and then remove itself.</div></li>
- * <li><b>buffer</b> : Number<div class="sub-desc">Causes the handler to be scheduled to run in an {@link Ext.util.DelayedTask} delayed
- * by the specified number of milliseconds. If the event fires again within that time, the original
- * handler is <em>not</em> invoked, but the new handler is scheduled in its place.</div></li>
- * <li><b>target</b> : Observable<div class="sub-desc">Only call the handler if the event was fired on the target Observable, <i>not</i>
- * if the event was bubbled up from a child Observable.</div></li>
- * <li><b>element</b> : String<div class="sub-desc"><b>This option is only valid for listeners bound to {@link Ext.Component Components}.</b>
- * The name of a Component property which references an element to add a listener to.
- * <p>This option is useful during Component construction to add DOM event listeners to elements of {@link Ext.Component Components} which
- * will exist only after the Component is rendered. For example, to add a click listener to a Panel's body:<pre><code>
-new Ext.panel.Panel({
- title: 'The title',
- listeners: {
- click: this.handlePanelClick,
- element: 'body'
- }
-});
-</code></pre></p>
- * <p>When added in this way, the options available are the options applicable to {@link Ext.core.Element#addListener}</p></div></li>
- * </ul><br>
- * <p>
- * <b>Combining Options</b><br>
- * Using the options argument, it is possible to combine different types of listeners:<br>
- * <br>
+ *
+ * @param {String} eventName The name of the event to listen for. May also be an object who's property names are
+ * event names.
+ * @param {Function} fn The method the event invokes. Will be called with arguments given to
+ * {@link #fireEvent} plus the `options` parameter described below.
+ * @param {Object} [scope] The scope (`this` reference) in which the handler function is executed. **If
+ * omitted, defaults to the object which fired the event.**
+ * @param {Object} [options] An object containing handler configuration.
+ *
+ * **Note:** Unlike in ExtJS 3.x, the options object will also be passed as the last argument to every event handler.
+ *
+ * This object may contain any of the following properties:
+ *
+ * - **scope** : Object
+ *
+ * The scope (`this` reference) in which the handler function is executed. **If omitted, defaults to the object
+ * which fired the event.**
+ *
+ * - **delay** : Number
+ *
+ * The number of milliseconds to delay the invocation of the handler after the event fires.
+ *
+ * - **single** : Boolean
+ *
+ * True to add a handler to handle just the next firing of the event, and then remove itself.
+ *
+ * - **buffer** : Number
+ *
+ * Causes the handler to be scheduled to run in an {@link Ext.util.DelayedTask} delayed by the specified number of
+ * milliseconds. If the event fires again within that time, the original handler is _not_ invoked, but the new
+ * handler is scheduled in its place.
+ *
+ * - **target** : Observable
+ *
+ * Only call the handler if the event was fired on the target Observable, _not_ if the event was bubbled up from a
+ * child Observable.
+ *
+ * - **element** : String
+ *
+ * **This option is only valid for listeners bound to {@link Ext.Component Components}.** The name of a Component
+ * property which references an element to add a listener to.
+ *
+ * This option is useful during Component construction to add DOM event listeners to elements of
+ * {@link Ext.Component Components} which will exist only after the Component is rendered.
+ * For example, to add a click listener to a Panel's body:
+ *
+ * new Ext.panel.Panel({
+ * title: 'The title',
+ * listeners: {
+ * click: this.handlePanelClick,
+ * element: 'body'
+ * }
+ * });
+ *
+ * **Combining Options**
+ *
+ * Using the options argument, it is possible to combine different types of listeners:
+ *
* A delayed, one-time listener.
- * <pre><code>
-myPanel.on('hide', this.handleClick, this, {
-single: true,
-delay: 100
-});</code></pre>
- * <p>
- * <b>Attaching multiple handlers in 1 call</b><br>
- * The method also allows for a single argument to be passed which is a config object containing properties
- * which specify multiple events. For example:<pre><code>
-myGridPanel.on({
- cellClick: this.onCellClick,
- mouseover: this.onMouseOver,
- mouseout: this.onMouseOut,
- scope: this // Important. Ensure "this" is correct during handler execution
-});
-</code></pre>.
- * <p>
+ *
+ * myPanel.on('hide', this.handleClick, this, {
+ * single: true,
+ * delay: 100
+ * });
+ *
+ * **Attaching multiple handlers in 1 call**
+ *
+ * The method also allows for a single argument to be passed which is a config object containing properties which
+ * specify multiple events. For example:
+ *
+ * myGridPanel.on({
+ * cellClick: this.onCellClick,
+ * mouseover: this.onMouseOver,
+ * mouseout: this.onMouseOut,
+ * scope: this // Important. Ensure "this" is correct during handler execution
+ * });
+ *
+ * One can also specify options for each event handler separately:
+ *
+ * myGridPanel.on({
+ * cellClick: {fn: this.onCellClick, scope: this, single: true},
+ * mouseover: {fn: panel.onMouseOver, scope: panel}
+ * });
+ *
*/
addListener: function(ename, fn, scope, options) {
var me = this,
config,
event;
- if (Ext.isObject(ename)) {
+ if (typeof ename !== 'string') {
options = ename;
for (ename in options) {
if (options.hasOwnProperty(ename)) {
@@ -368,9 +429,12 @@ myGridPanel.on({
/**
* Removes an event handler.
- * @param {String} eventName The type of event the handler was associated with.
- * @param {Function} handler The handler to remove. <b>This must be a reference to the function passed into the {@link #addListener} call.</b>
- * @param {Object} scope (optional) The scope originally specified for the handler.
+ *
+ * @param {String} eventName The type of event the handler was associated with.
+ * @param {Function} fn The handler to remove. **This must be a reference to the function passed into the
+ * {@link #addListener} call.**
+ * @param {Object} scope (optional) The scope originally specified for the handler. It must be the same as the
+ * scope argument specified in the original call to {@link #addListener} or the listener will not be removed.
*/
removeListener: function(ename, fn, scope) {
var me = this,
@@ -378,7 +442,7 @@ myGridPanel.on({
event,
options;
- if (Ext.isObject(ename)) {
+ if (typeof ename !== 'string') {
options = ename;
for (ename in options) {
if (options.hasOwnProperty(ename)) {
@@ -440,7 +504,7 @@ myGridPanel.on({
this.managedListeners = [];
},
-
+
/**
* Remove a single managed listener item
* @private
@@ -453,7 +517,7 @@ myGridPanel.on({
managedListener.item.un(managedListener.ename, managedListener.fn, managedListener.scope);
if (!isClear) {
Ext.Array.remove(this.managedListeners, managedListener);
- }
+ }
}
},
@@ -468,24 +532,32 @@ myGridPanel.on({
/**
* Adds the specified events to the list of events which this Observable may fire.
- * @param {Object/String} o Either an object with event names as properties with a value of <code>true</code>
- * or the first event name string if multiple event names are being passed as separate parameters.
- * @param {String} [additional] Optional additional event names if multiple event names are being passed as separate parameters.
- * Usage:<pre><code>
-this.addEvents('storeloaded', 'storecleared');
-</code></pre>
+ *
+ * @param {Object/String} o Either an object with event names as properties with a value of `true` or the first
+ * event name string if multiple event names are being passed as separate parameters. Usage:
+ *
+ * this.addEvents({
+ * storeloaded: true,
+ * storecleared: true
+ * });
+ *
+ * @param {String...} more (optional) Additional event names if multiple event names are being passed as separate
+ * parameters. Usage:
+ *
+ * this.addEvents('storeloaded', 'storecleared');
+ *
*/
addEvents: function(o) {
var me = this,
args,
len,
i;
-
+
me.events = me.events || {};
if (Ext.isString(o)) {
args = arguments;
i = args.length;
-
+
while (i--) {
me.events[args[i]] = me.events[args[i]] || true;
}
@@ -496,6 +568,7 @@ this.addEvents('storeloaded', 'storecleared');
/**
* Checks to see if this object has any listeners for a specified event
+ *
* @param {String} eventName The name of the event to check for
* @return {Boolean} True if the event is being listened for, else false
*/
@@ -505,9 +578,10 @@ this.addEvents('storeloaded', 'storecleared');
},
/**
- * Suspend the firing of all events. (see {@link #resumeEvents})
+ * Suspends the firing of all events. (see {@link #resumeEvents})
+ *
* @param {Boolean} queueSuspended Pass as true to queue up suspended events to be fired
- * after the {@link #resumeEvents} call instead of discarding all suspended events;
+ * after the {@link #resumeEvents} call instead of discarding all suspended events.
*/
suspendEvents: function(queueSuspended) {
this.eventsSuspended = true;
@@ -517,27 +591,31 @@ this.addEvents('storeloaded', 'storecleared');
},
/**
- * Resume firing events. (see {@link #suspendEvents})
- * If events were suspended using the <code><b>queueSuspended</b></code> parameter, then all
- * events fired during event suspension will be sent to any listeners now.
+ * Resumes firing events (see {@link #suspendEvents}).
+ *
+ * If events were suspended using the `queueSuspended` parameter, then all events fired
+ * during event suspension will be sent to any listeners now.
*/
resumeEvents: function() {
var me = this,
- queued = me.eventQueue || [];
+ queued = me.eventQueue;
me.eventsSuspended = false;
delete me.eventQueue;
- Ext.each(queued,
- function(e) {
- me.fireEvent.apply(me, e);
- });
+ if (queued) {
+ Ext.each(queued, function(e) {
+ me.continueFireEvent.apply(me, e);
+ });
+ }
},
/**
- * Relays selected events from the specified Observable as if the events were fired by <code><b>this</b></code>.
+ * Relays selected events from the specified Observable as if the events were fired by `this`.
+ *
* @param {Object} origin The Observable whose events this object is to relay.
- * @param {Array} events Array of event names to relay.
+ * @param {String[]} events Array of event names to relay.
+ * @param {String} prefix
*/
relayEvents : function(origin, events, prefix) {
prefix = prefix || '';
@@ -569,41 +647,45 @@ this.addEvents('storeloaded', 'storecleared');
},
/**
- * <p>Enables events fired by this Observable to bubble up an owner hierarchy by calling
- * <code>this.getBubbleTarget()</code> if present. There is no implementation in the Observable base class.</p>
- * <p>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.</p>
- * <p>Example:</p><pre><code>
-Ext.override(Ext.form.field.Base, {
-// Add functionality to Field's initComponent to enable the change event to bubble
-initComponent : Ext.Function.createSequence(Ext.form.field.Base.prototype.initComponent, 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');
- }
-}
-});
-</code></pre>
- * @param {String/Array} events The event name to bubble, or an Array of event names.
+ * 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.Base, {
+ * // Add functionality to Field's initComponent to enable the change event to bubble
+ * initComponent : Ext.Function.createSequence(Ext.form.field.Base.prototype.initComponent, 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/String[]} events The event name to bubble, or an Array of event names.
*/
enableBubble: function(events) {
var me = this;
@@ -622,28 +704,31 @@ listeners: {
}
}
}, function() {
- /**
- * Removes an event handler (shorthand for {@link #removeListener}.)
- * @param {String} eventName The type of event the handler was associated with.
- * @param {Function} handler The handler to remove. <b>This must be a reference to the function passed into the {@link #addListener} call.</b>
- * @param {Object} scope (optional) The scope originally specified for the handler.
- * @method un
- */
-
- /**
- * Appends an event handler to this object (shorthand for {@link #addListener}.)
- * @param {String} eventName The type of event to listen for
- * @param {Function} handler The method the event invokes
- * @param {Object} scope (optional) The scope (<code><b>this</b></code> reference) in which the handler function is executed.
- * <b>If omitted, defaults to the object which fired the event.</b>
- * @param {Object} options (optional) An object containing handler configuration.
- * @method on
- */
this.createAlias({
+ /**
+ * @method
+ * Shorthand for {@link #addListener}.
+ * @alias Ext.util.Observable#addListener
+ */
on: 'addListener',
+ /**
+ * @method
+ * Shorthand for {@link #removeListener}.
+ * @alias Ext.util.Observable#removeListener
+ */
un: 'removeListener',
+ /**
+ * @method
+ * Shorthand for {@link #addManagedListener}.
+ * @alias Ext.util.Observable#addManagedListener
+ */
mon: 'addManagedListener',
+ /**
+ * @method
+ * Shorthand for {@link #removeManagedListener}.
+ * @alias Ext.util.Observable#removeManagedListener
+ */
mun: 'removeManagedListener'
});
@@ -743,13 +828,13 @@ listeners: {
i, len;
for(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);
+ Ext.Array.erase(e.before, i, 1);
return;
}
}
for(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);
+ Ext.Array.erase(e.after, i, 1);
return;
}
}