+++ /dev/null
-/*!
- * Ext JS Library 3.0.0
- * Copyright(c) 2006-2009 Ext JS, LLC
- * licensing@extjs.com
- * http://www.extjs.com/license
- */
-(function(){
-
-var EXTUTIL = Ext.util,
- TOARRAY = Ext.toArray,
- EACH = Ext.each,
- ISOBJECT = Ext.isObject,
- TRUE = true,
- FALSE = false;
-/**
- * @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>
- * For example:
- * <pre><code>
-Employee = Ext.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(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>
- */
-EXTUTIL.Observable = function(){
- /**
- * @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.DataView DataView}'s
- * <b><code>{@link Ext.DataView#click click}</code></b> event passing the node clicked on. To access DOM
- * events directly from a Component's HTMLElement, listeners must be added to the <i>{@link Ext.Component#getEl Element}</i> after the Component
- * has been rendered. A plugin can simplify this step:<pre><code>
-// Plugin is configured with a listeners config object.
-// The Component is appended to the argument list of all handler functions.
-Ext.DomObserver = Ext.extend(Object, {
- constructor: function(config) {
- this.listeners = config.listeners ? config.listeners : config;
- },
-
- // Component passes itself into plugin's init method
- init: function(c) {
- var p, l = this.listeners;
- for (p in l) {
- if (Ext.isFunction(l[p])) {
- l[p] = this.createHandler(l[p], c);
- } else {
- l[p].fn = this.createHandler(l[p].fn, c);
- }
- }
-
- // Add the listeners to the Element immediately following the render call
- c.render = c.render.{@link Function#createSequence createSequence}(function() {
- var e = c.getEl();
- if (e) {
- e.on(l);
- }
- });
- },
-
- createHandler: function(fn, c) {
- return function(e) {
- fn.call(this, e, c);
- };
- }
-});
-
-var combo = new Ext.form.ComboBox({
-
- // Collapse combo when its element is clicked on
- plugins: [ new Ext.DomObserver({
- click: function(evt, comp) {
- comp.collapse();
- }
- })],
- store: myStore,
- typeAhead: true,
- mode: 'local',
- triggerAction: 'all'
-});
- * </code></pre></p>
- */
- var me = this, e = me.events;
- if(me.listeners){
- me.on(me.listeners);
- delete me.listeners;
- }
- me.events = e || {};
-};
-
-EXTUTIL.Observable.prototype = function(){
- var filterOptRe = /^(?:scope|delay|buffer|single)$/, toLower = function(s){
- return s.toLowerCase();
- };
-
- return {
- /**
- * <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>
- * @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 a = TOARRAY(arguments),
- ename = toLower(a[0]),
- me = this,
- ret = TRUE,
- ce = me.events[ename],
- q,
- c;
- if (me.eventsSuspended === TRUE) {
- if (q = me.suspendedEventsQueue) {
- q.push(a);
- }
- }
- else if(ISOBJECT(ce) && ce.bubble){
- if(ce.fire.apply(ce, a.slice(1)) === FALSE) {
- return FALSE;
- }
- c = me.getBubbleTarget && me.getBubbleTarget();
- if(c && c.enableBubble) {
- c.enableBubble(ename);
- return c.fireEvent.apply(c, a);
- }
- }
- else {
- if (ISOBJECT(ce)) {
- a.shift();
- ret = ce.fire.apply(ce, a);
- }
- }
- return ret;
- },
-
- /**
- * Appends an event handler to this object.
- * @param {String} eventName The name of the 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.
- * 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>
- * </ul><br>
- * <p>
- * <b>Combining Options</b><br>
- * Using the options argument, it is possible to combine different types of listeners:<br>
- * <br>
- * A delayed, one-time listener.
- * <pre><code>
-myDataView.on('click', this.onClick, 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 handlers.
- * <p>
- * <pre><code>
-myGridPanel.on({
- 'click' : {
- fn: this.onClick,
- scope: this,
- delay: 100
- },
- 'mouseover' : {
- fn: this.onMouseOver,
- scope: this
- },
- 'mouseout' : {
- fn: this.onMouseOut,
- scope: this
- }
-});</code></pre>
- * <p>
- * Or a shorthand syntax:<br>
- * <pre><code>
-myGridPanel.on({
- 'click' : this.onClick,
- 'mouseover' : this.onMouseOver,
- 'mouseout' : this.onMouseOut,
- scope: this
-});</code></pre>
- */
- addListener : function(eventName, fn, scope, o){
- var me = this,
- e,
- oe,
- isF,
- ce;
- if (ISOBJECT(eventName)) {
- o = eventName;
- for (e in o){
- oe = o[e];
- if (!filterOptRe.test(e)) {
- me.addListener(e, oe.fn || oe, oe.scope || o.scope, oe.fn ? oe : o);
- }
- }
- } else {
- eventName = toLower(eventName);
- ce = me.events[eventName] || TRUE;
- if (typeof ce == "boolean") {
- me.events[eventName] = ce = new EXTUTIL.Event(me, eventName);
- }
- ce.addListener(fn, scope, ISOBJECT(o) ? o : {});
- }
- },
-
- /**
- * 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.
- */
- removeListener : function(eventName, fn, scope){
- var ce = this.events[toLower(eventName)];
- if (ISOBJECT(ce)) {
- ce.removeListener(fn, scope);
- }
- },
-
- /**
- * Removes all listeners for this object
- */
- purgeListeners : function(){
- var events = this.events,
- evt,
- key;
- for(key in events){
- evt = events[key];
- if(ISOBJECT(evt)){
- evt.clearListeners();
- }
- }
- },
-
- /**
- * Used to define events on this Observable
- * @param {Object} object The object with the events defined
- */
- addEvents : function(o){
- var me = this;
- me.events = me.events || {};
- if (typeof o == 'string') {
- EACH(arguments, function(a) {
- me.events[a] = me.events[a] || TRUE;
- });
- } else {
- Ext.applyIf(me.events, o);
- }
- },
-
- /**
- * 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
- */
- hasListener : function(eventName){
- var e = this.events[eventName];
- return ISOBJECT(e) && e.listeners.length > 0;
- },
-
- /**
- * Suspend 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;
- */
- suspendEvents : function(queueSuspended){
- this.eventsSuspended = TRUE;
- if (queueSuspended){
- this.suspendedEventsQueue = [];
- }
- },
-
- /**
- * Resume firing events. (see {@link #suspendEvents})
- * If events were suspended using the <tt><b>queueSuspended</b></tt> parameter, then all
- * events fired during event suspension will be sent to any listeners now.
- */
- resumeEvents : function(){
- var me = this;
- me.eventsSuspended = !delete me.suspendedEventQueue;
- EACH(me.suspendedEventsQueue, function(e) {
- me.fireEvent.apply(me, e);
- });
- }
- }
-}();
-
-var OBSERVABLE = EXTUTIL.Observable.prototype;
-/**
- * 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
- */
-OBSERVABLE.on = OBSERVABLE.addListener;
-/**
- * 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
- */
-OBSERVABLE.un = OBSERVABLE.removeListener;
-
-/**
- * Removes <b>all</b> added captures from the Observable.
- * @param {Observable} o The Observable to release
- * @static
- */
-EXTUTIL.Observable.releaseCapture = function(o){
- o.fireEvent = OBSERVABLE.fireEvent;
-};
-
-function createTargeted(h, o, scope){
- return function(){
- if(o.target == arguments[0]){
- h.apply(scope, TOARRAY(arguments));
- }
- };
-};
-
-function createBuffered(h, o, scope){
- var task = new EXTUTIL.DelayedTask();
- return function(){
- task.delay(o.buffer, h, scope, TOARRAY(arguments));
- };
-}
-
-function createSingle(h, e, fn, scope){
- return function(){
- e.removeListener(fn, scope);
- return h.apply(scope, arguments);
- };
-}
-
-function createDelayed(h, o, scope){
- return function(){
- var args = TOARRAY(arguments);
- (function(){
- h.apply(scope, args);
- }).defer(o.delay || 10);
- };
-};
-
-EXTUTIL.Event = function(obj, name){
- this.name = name;
- this.obj = obj;
- this.listeners = [];
-};
-
-EXTUTIL.Event.prototype = {
- addListener : function(fn, scope, options){
- var me = this,
- l;
- scope = scope || me.obj;
- if(!me.isListening(fn, scope)){
- l = me.createListener(fn, scope, options);
- if(me.firing){ // if we are currently firing this event, don't disturb the listener loop
- me.listeners = me.listeners.slice(0);
- }
- me.listeners.push(l);
- }
- },
-
- createListener: function(fn, scope, o){
- o = o || {}, scope = scope || this.obj;
- var l = {
- fn: fn,
- scope: scope,
- options: o
- }, h = fn;
- if(o.target){
- h = createTargeted(h, o, scope);
- }
- if(o.delay){
- h = createDelayed(h, o, scope);
- }
- if(o.single){
- h = createSingle(h, this, fn, scope);
- }
- if(o.buffer){
- h = createBuffered(h, o, scope);
- }
- l.fireFn = h;
- return l;
- },
-
- findListener : function(fn, scope){
- var s, ret = -1;
- EACH(this.listeners, function(l, i) {
- s = l.scope;
- if(l.fn == fn && (s == scope || s == this.obj)){
- ret = i;
- return FALSE;
- }
- },
- this);
- return ret;
- },
-
- isListening : function(fn, scope){
- return this.findListener(fn, scope) != -1;
- },
-
- removeListener : function(fn, scope){
- var index,
- me = this,
- ret = FALSE;
- if((index = me.findListener(fn, scope)) != -1){
- if (me.firing) {
- me.listeners = me.listeners.slice(0);
- }
- me.listeners.splice(index, 1);
- ret = TRUE;
- }
- return ret;
- },
-
- clearListeners : function(){
- this.listeners = [];
- },
-
- fire : function(){
- var me = this,
- args = TOARRAY(arguments),
- ret = TRUE;
-
- EACH(me.listeners, function(l) {
- me.firing = TRUE;
- if (l.fireFn.apply(l.scope || me.obj || window, args) === FALSE) {
- return ret = me.firing = FALSE;
- }
- });
- me.firing = FALSE;
- return ret;
- }
-};
-})();
\ No newline at end of file
git.ithinksw.org / extjs.git / blobdiff