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YUI.add('yui2-event', function(Y) {
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var YAHOO = Y.YUI2;
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/*
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Copyright (c) 2011, Yahoo! Inc. All rights reserved.
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Code licensed under the BSD License:
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http://developer.yahoo.com/yui/license.html
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version: 2.9.0
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*/
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/**
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* The CustomEvent class lets you define events for your application
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* that can be subscribed to by one or more independent component.
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*
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* @param {String} type The type of event, which is passed to the callback
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* when the event fires
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* @param {Object} context The context the event will fire from. "this" will
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* refer to this object in the callback. Default value:
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* the window object. The listener can override this.
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* @param {boolean} silent pass true to prevent the event from writing to
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* the debugsystem
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* @param {int} signature the signature that the custom event subscriber
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* will receive. YAHOO.util.CustomEvent.LIST or
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* YAHOO.util.CustomEvent.FLAT. The default is
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* YAHOO.util.CustomEvent.LIST.
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* @param fireOnce {boolean} If configured to fire once, the custom event
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* will only notify subscribers a single time regardless of how many times
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* the event is fired. In addition, new subscribers will be notified
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* immediately if the event has already been fired.
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* @namespace YAHOO.util
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* @class CustomEvent
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* @constructor
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*/
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YAHOO.util.CustomEvent = function(type, context, silent, signature, fireOnce) {
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/**
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* The type of event, returned to subscribers when the event fires
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* @property type
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* @type string
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*/
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this.type = type;
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/**
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* The context the event will fire from by default. Defaults to the window obj.
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* @property scope
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* @type object
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*/
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this.scope = context || window;
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/**
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* By default all custom events are logged in the debug build. Set silent to true
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* to disable debug output for this event.
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* @property silent
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* @type boolean
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*/
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this.silent = silent;
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/**
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* If configured to fire once, the custom event will only notify subscribers
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* a single time regardless of how many times the event is fired. In addition,
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* new subscribers will be notified immediately if the event has already been
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* fired.
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* @property fireOnce
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* @type boolean
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* @default false
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*/
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this.fireOnce = fireOnce;
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/**
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* Indicates whether or not this event has ever been fired.
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* @property fired
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* @type boolean
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* @default false
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*/
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this.fired = false;
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/**
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* For fireOnce events the arguments the event was fired with are stored
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* so that new subscribers get the proper payload.
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* @property firedWith
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* @type Array
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*/
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this.firedWith = null;
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/**
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* Custom events support two styles of arguments provided to the event
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* subscribers.
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* <ul>
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* <li>YAHOO.util.CustomEvent.LIST:
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* <ul>
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* <li>param1: event name</li>
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* <li>param2: array of arguments sent to fire</li>
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* <li>param3: <optional> a custom object supplied by the subscriber</li>
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* </ul>
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* </li>
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* <li>YAHOO.util.CustomEvent.FLAT
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* <ul>
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* <li>param1: the first argument passed to fire. If you need to
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* pass multiple parameters, use and array or object literal</li>
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* <li>param2: <optional> a custom object supplied by the subscriber</li>
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* </ul>
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* </li>
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* </ul>
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* @property signature
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* @type int
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*/
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this.signature = signature || YAHOO.util.CustomEvent.LIST;
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/**
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* The subscribers to this event
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* @property subscribers
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* @type Subscriber[]
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*/
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this.subscribers = [];
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if (!this.silent) {
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YAHOO.log( "Creating " + this, "info", "Event" );
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}
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var onsubscribeType = "_YUICEOnSubscribe";
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// Only add subscribe events for events that are not generated by
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// CustomEvent
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if (type !== onsubscribeType) {
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/**
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* Custom events provide a custom event that fires whenever there is
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* a new subscriber to the event. This provides an opportunity to
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* handle the case where there is a non-repeating event that has
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* already fired has a new subscriber.
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*
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* @event subscribeEvent
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* @type YAHOO.util.CustomEvent
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* @param fn {Function} The function to execute
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* @param obj <Object> An object to be passed along when the event fires.
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* Defaults to the custom event.
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* @param override <boolean|Object> If true, the obj passed in becomes the
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* execution context of the listener. If an object, that object becomes
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* the execution context. Defaults to the custom event.
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*/
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this.subscribeEvent =
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new YAHOO.util.CustomEvent(onsubscribeType, this, true);
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}
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/**
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* In order to make it possible to execute the rest of the subscriber
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* stack when one thows an exception, the subscribers exceptions are
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* caught. The most recent exception is stored in this property
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* @property lastError
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* @type Error
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*/
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this.lastError = null;
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};
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/**
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* Subscriber listener sigature constant. The LIST type returns three
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* parameters: the event type, the array of args passed to fire, and
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* the optional custom object
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* @property YAHOO.util.CustomEvent.LIST
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* @static
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* @type int
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*/
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YAHOO.util.CustomEvent.LIST = 0;
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/**
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* Subscriber listener sigature constant. The FLAT type returns two
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* parameters: the first argument passed to fire and the optional
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* custom object
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* @property YAHOO.util.CustomEvent.FLAT
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* @static
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* @type int
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*/
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YAHOO.util.CustomEvent.FLAT = 1;
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YAHOO.util.CustomEvent.prototype = {
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/**
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* Subscribes the caller to this event
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* @method subscribe
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* @param {Function} fn The function to execute
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* @param {Object} obj An object to be passed along when the event
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* fires.
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* @param {boolean|Object} overrideContext If true, the obj passed in
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* becomes the execution.
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* context of the listener. If an object, that object becomes the execution
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* context.
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*/
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subscribe: function(fn, obj, overrideContext) {
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if (!fn) {
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throw new Error("Invalid callback for subscriber to '" + this.type + "'");
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}
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if (this.subscribeEvent) {
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this.subscribeEvent.fire(fn, obj, overrideContext);
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}
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var s = new YAHOO.util.Subscriber(fn, obj, overrideContext);
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if (this.fireOnce && this.fired) {
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this.notify(s, this.firedWith);
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} else {
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this.subscribers.push(s);
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}
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},
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/**
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* Unsubscribes subscribers.
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* @method unsubscribe
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* @param {Function} fn The subscribed function to remove, if not supplied
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* all will be removed
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* @param {Object} obj The custom object passed to subscribe. This is
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* optional, but if supplied will be used to
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* disambiguate multiple listeners that are the same
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* (e.g., you subscribe many object using a function
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* that lives on the prototype)
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* @return {boolean} True if the subscriber was found and detached.
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*/
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unsubscribe: function(fn, obj) {
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if (!fn) {
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return this.unsubscribeAll();
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}
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var found = false;
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for (var i=0, len=this.subscribers.length; i<len; ++i) {
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var s = this.subscribers[i];
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if (s && s.contains(fn, obj)) {
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this._delete(i);
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found = true;
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}
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}
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return found;
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},
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/**
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* Notifies the subscribers. The callback functions will be executed
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* from the context specified when the event was created, and with the
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* following parameters:
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* <ul>
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* <li>The type of event</li>
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* <li>All of the arguments fire() was executed with as an array</li>
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* <li>The custom object (if any) that was passed into the subscribe()
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* method</li>
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* </ul>
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* @method fire
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* @param {Object*} arguments an arbitrary set of parameters to pass to
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* the handler.
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* @return {boolean} false if one of the subscribers returned false,
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* true otherwise
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*/
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fire: function() {
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this.lastError = null;
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var errors = [],
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len=this.subscribers.length;
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var args=[].slice.call(arguments, 0), ret=true, i, rebuild=false;
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if (this.fireOnce) {
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if (this.fired) {
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YAHOO.log('fireOnce event has already fired: ' + this.type);
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return true;
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} else {
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this.firedWith = args;
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}
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}
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this.fired = true;
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if (!len && this.silent) {
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//YAHOO.log('DEBUG no subscribers');
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return true;
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}
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if (!this.silent) {
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YAHOO.log( "Firing " + this + ", " +
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"args: " + args + ", " +
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"subscribers: " + len,
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"info", "Event" );
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}
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// make a copy of the subscribers so that there are
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// no index problems if one subscriber removes another.
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var subs = this.subscribers.slice();
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for (i=0; i<len; ++i) {
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var s = subs[i];
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if (!s || !s.fn) {
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rebuild=true;
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} else {
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ret = this.notify(s, args);
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if (false === ret) {
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if (!this.silent) {
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YAHOO.log("Event stopped, sub " + i + " of " + len, "info", "Event");
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}
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break;
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}
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}
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}
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return (ret !== false);
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},
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notify: function(s, args) {
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var ret, param=null, scope = s.getScope(this.scope),
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throwErrors = YAHOO.util.Event.throwErrors;
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if (!this.silent) {
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YAHOO.log( this.type + "-> " + s, "info", "Event" );
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}
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if (this.signature == YAHOO.util.CustomEvent.FLAT) {
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if (args.length > 0) {
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param = args[0];
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}
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try {
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ret = s.fn.call(scope, param, s.obj);
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} catch(e) {
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this.lastError = e;
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// errors.push(e);
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YAHOO.log(this + " subscriber exception: " + e, "error", "Event");
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if (throwErrors) {
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throw e;
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}
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336 |
}
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} else {
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try {
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ret = s.fn.call(scope, this.type, args, s.obj);
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} catch(ex) {
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this.lastError = ex;
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YAHOO.log(this + " subscriber exception: " + ex, "error", "Event");
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if (throwErrors) {
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throw ex;
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}
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}
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}
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return ret;
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},
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351 |
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352 |
/**
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353 |
* Removes all listeners
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354 |
* @method unsubscribeAll
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355 |
* @return {int} The number of listeners unsubscribed
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356 |
*/
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357 |
unsubscribeAll: function() {
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358 |
var l = this.subscribers.length, i;
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for (i=l-1; i>-1; i--) {
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this._delete(i);
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}
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this.subscribers=[];
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return l;
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},
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367 |
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368 |
/**
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369 |
* @method _delete
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370 |
* @private
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*/
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372 |
_delete: function(index) {
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373 |
var s = this.subscribers[index];
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if (s) {
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delete s.fn;
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delete s.obj;
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}
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378 |
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379 |
// this.subscribers[index]=null;
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380 |
this.subscribers.splice(index, 1);
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381 |
},
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382 |
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383 |
/**
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384 |
* @method toString
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|
385 |
*/
|
|
|
386 |
toString: function() {
|
|
|
387 |
return "CustomEvent: " + "'" + this.type + "', " +
|
|
|
388 |
"context: " + this.scope;
|
|
|
389 |
|
|
|
390 |
}
|
|
|
391 |
};
|
|
|
392 |
|
|
|
393 |
/////////////////////////////////////////////////////////////////////
|
|
|
394 |
|
|
|
395 |
/**
|
|
|
396 |
* Stores the subscriber information to be used when the event fires.
|
|
|
397 |
* @param {Function} fn The function to execute
|
|
|
398 |
* @param {Object} obj An object to be passed along when the event fires
|
|
|
399 |
* @param {boolean} overrideContext If true, the obj passed in becomes the execution
|
|
|
400 |
* context of the listener
|
|
|
401 |
* @class Subscriber
|
|
|
402 |
* @constructor
|
|
|
403 |
*/
|
|
|
404 |
YAHOO.util.Subscriber = function(fn, obj, overrideContext) {
|
|
|
405 |
|
|
|
406 |
/**
|
|
|
407 |
* The callback that will be execute when the event fires
|
|
|
408 |
* @property fn
|
|
|
409 |
* @type function
|
|
|
410 |
*/
|
|
|
411 |
this.fn = fn;
|
|
|
412 |
|
|
|
413 |
/**
|
|
|
414 |
* An optional custom object that will passed to the callback when
|
|
|
415 |
* the event fires
|
|
|
416 |
* @property obj
|
|
|
417 |
* @type object
|
|
|
418 |
*/
|
|
|
419 |
this.obj = YAHOO.lang.isUndefined(obj) ? null : obj;
|
|
|
420 |
|
|
|
421 |
/**
|
|
|
422 |
* The default execution context for the event listener is defined when the
|
|
|
423 |
* event is created (usually the object which contains the event).
|
|
|
424 |
* By setting overrideContext to true, the execution context becomes the custom
|
|
|
425 |
* object passed in by the subscriber. If overrideContext is an object, that
|
|
|
426 |
* object becomes the context.
|
|
|
427 |
* @property overrideContext
|
|
|
428 |
* @type boolean|object
|
|
|
429 |
*/
|
|
|
430 |
this.overrideContext = overrideContext;
|
|
|
431 |
|
|
|
432 |
};
|
|
|
433 |
|
|
|
434 |
/**
|
|
|
435 |
* Returns the execution context for this listener. If overrideContext was set to true
|
|
|
436 |
* the custom obj will be the context. If overrideContext is an object, that is the
|
|
|
437 |
* context, otherwise the default context will be used.
|
|
|
438 |
* @method getScope
|
|
|
439 |
* @param {Object} defaultScope the context to use if this listener does not
|
|
|
440 |
* override it.
|
|
|
441 |
*/
|
|
|
442 |
YAHOO.util.Subscriber.prototype.getScope = function(defaultScope) {
|
|
|
443 |
if (this.overrideContext) {
|
|
|
444 |
if (this.overrideContext === true) {
|
|
|
445 |
return this.obj;
|
|
|
446 |
} else {
|
|
|
447 |
return this.overrideContext;
|
|
|
448 |
}
|
|
|
449 |
}
|
|
|
450 |
return defaultScope;
|
|
|
451 |
};
|
|
|
452 |
|
|
|
453 |
/**
|
|
|
454 |
* Returns true if the fn and obj match this objects properties.
|
|
|
455 |
* Used by the unsubscribe method to match the right subscriber.
|
|
|
456 |
*
|
|
|
457 |
* @method contains
|
|
|
458 |
* @param {Function} fn the function to execute
|
|
|
459 |
* @param {Object} obj an object to be passed along when the event fires
|
|
|
460 |
* @return {boolean} true if the supplied arguments match this
|
|
|
461 |
* subscriber's signature.
|
|
|
462 |
*/
|
|
|
463 |
YAHOO.util.Subscriber.prototype.contains = function(fn, obj) {
|
|
|
464 |
if (obj) {
|
|
|
465 |
return (this.fn == fn && this.obj == obj);
|
|
|
466 |
} else {
|
|
|
467 |
return (this.fn == fn);
|
|
|
468 |
}
|
|
|
469 |
};
|
|
|
470 |
|
|
|
471 |
/**
|
|
|
472 |
* @method toString
|
|
|
473 |
*/
|
|
|
474 |
YAHOO.util.Subscriber.prototype.toString = function() {
|
|
|
475 |
return "Subscriber { obj: " + this.obj +
|
|
|
476 |
", overrideContext: " + (this.overrideContext || "no") + " }";
|
|
|
477 |
};
|
|
|
478 |
|
|
|
479 |
/**
|
|
|
480 |
* The Event Utility provides utilities for managing DOM Events and tools
|
|
|
481 |
* for building event systems
|
|
|
482 |
*
|
|
|
483 |
* @module event
|
|
|
484 |
* @title Event Utility
|
|
|
485 |
* @namespace YAHOO.util
|
|
|
486 |
* @requires yahoo
|
|
|
487 |
*/
|
|
|
488 |
|
|
|
489 |
// The first instance of Event will win if it is loaded more than once.
|
|
|
490 |
// @TODO this needs to be changed so that only the state data that needs to
|
|
|
491 |
// be preserved is kept, while methods are overwritten/added as needed.
|
|
|
492 |
// This means that the module pattern can't be used.
|
|
|
493 |
if (!YAHOO.util.Event) {
|
|
|
494 |
|
|
|
495 |
/**
|
|
|
496 |
* The event utility provides functions to add and remove event listeners,
|
|
|
497 |
* event cleansing. It also tries to automatically remove listeners it
|
|
|
498 |
* registers during the unload event.
|
|
|
499 |
*
|
|
|
500 |
* @class Event
|
|
|
501 |
* @static
|
|
|
502 |
*/
|
|
|
503 |
YAHOO.util.Event = function() {
|
|
|
504 |
|
|
|
505 |
/**
|
|
|
506 |
* True after the onload event has fired
|
|
|
507 |
* @property loadComplete
|
|
|
508 |
* @type boolean
|
|
|
509 |
* @static
|
|
|
510 |
* @private
|
|
|
511 |
*/
|
|
|
512 |
var loadComplete = false,
|
|
|
513 |
|
|
|
514 |
/**
|
|
|
515 |
* Cache of wrapped listeners
|
|
|
516 |
* @property listeners
|
|
|
517 |
* @type array
|
|
|
518 |
* @static
|
|
|
519 |
* @private
|
|
|
520 |
*/
|
|
|
521 |
listeners = [],
|
|
|
522 |
|
|
|
523 |
|
|
|
524 |
/**
|
|
|
525 |
* User-defined unload function that will be fired before all events
|
|
|
526 |
* are detached
|
|
|
527 |
* @property unloadListeners
|
|
|
528 |
* @type array
|
|
|
529 |
* @static
|
|
|
530 |
* @private
|
|
|
531 |
*/
|
|
|
532 |
unloadListeners = [],
|
|
|
533 |
|
|
|
534 |
/**
|
|
|
535 |
* The number of times to poll after window.onload. This number is
|
|
|
536 |
* increased if additional late-bound handlers are requested after
|
|
|
537 |
* the page load.
|
|
|
538 |
* @property retryCount
|
|
|
539 |
* @static
|
|
|
540 |
* @private
|
|
|
541 |
*/
|
|
|
542 |
retryCount = 0,
|
|
|
543 |
|
|
|
544 |
/**
|
|
|
545 |
* onAvailable listeners
|
|
|
546 |
* @property onAvailStack
|
|
|
547 |
* @static
|
|
|
548 |
* @private
|
|
|
549 |
*/
|
|
|
550 |
onAvailStack = [],
|
|
|
551 |
|
|
|
552 |
/**
|
|
|
553 |
* Counter for auto id generation
|
|
|
554 |
* @property counter
|
|
|
555 |
* @static
|
|
|
556 |
* @private
|
|
|
557 |
*/
|
|
|
558 |
counter = 0,
|
|
|
559 |
|
|
|
560 |
/**
|
|
|
561 |
* Normalized keycodes for webkit/safari
|
|
|
562 |
* @property webkitKeymap
|
|
|
563 |
* @type {int: int}
|
|
|
564 |
* @private
|
|
|
565 |
* @static
|
|
|
566 |
* @final
|
|
|
567 |
*/
|
|
|
568 |
webkitKeymap = {
|
|
|
569 |
63232: 38, // up
|
|
|
570 |
63233: 40, // down
|
|
|
571 |
63234: 37, // left
|
|
|
572 |
63235: 39, // right
|
|
|
573 |
63276: 33, // page up
|
|
|
574 |
63277: 34, // page down
|
|
|
575 |
25: 9 // SHIFT-TAB (Safari provides a different key code in
|
|
|
576 |
// this case, even though the shiftKey modifier is set)
|
|
|
577 |
},
|
|
|
578 |
|
|
|
579 |
isIE = YAHOO.env.ua.ie,
|
|
|
580 |
|
|
|
581 |
// String constants used by the addFocusListener and removeFocusListener methods
|
|
|
582 |
|
|
|
583 |
FOCUSIN = "focusin",
|
|
|
584 |
FOCUSOUT = "focusout";
|
|
|
585 |
|
|
|
586 |
return {
|
|
|
587 |
|
|
|
588 |
/**
|
|
|
589 |
* The number of times we should look for elements that are not
|
|
|
590 |
* in the DOM at the time the event is requested after the document
|
|
|
591 |
* has been loaded. The default is 500@amp;40 ms, so it will poll
|
|
|
592 |
* for 20 seconds or until all outstanding handlers are bound
|
|
|
593 |
* (whichever comes first).
|
|
|
594 |
* @property POLL_RETRYS
|
|
|
595 |
* @type int
|
|
|
596 |
* @static
|
|
|
597 |
* @final
|
|
|
598 |
*/
|
|
|
599 |
POLL_RETRYS: 500,
|
|
|
600 |
|
|
|
601 |
/**
|
|
|
602 |
* The poll interval in milliseconds
|
|
|
603 |
* @property POLL_INTERVAL
|
|
|
604 |
* @type int
|
|
|
605 |
* @static
|
|
|
606 |
* @final
|
|
|
607 |
*/
|
|
|
608 |
POLL_INTERVAL: 40,
|
|
|
609 |
|
|
|
610 |
/**
|
|
|
611 |
* Element to bind, int constant
|
|
|
612 |
* @property EL
|
|
|
613 |
* @type int
|
|
|
614 |
* @static
|
|
|
615 |
* @final
|
|
|
616 |
*/
|
|
|
617 |
EL: 0,
|
|
|
618 |
|
|
|
619 |
/**
|
|
|
620 |
* Type of event, int constant
|
|
|
621 |
* @property TYPE
|
|
|
622 |
* @type int
|
|
|
623 |
* @static
|
|
|
624 |
* @final
|
|
|
625 |
*/
|
|
|
626 |
TYPE: 1,
|
|
|
627 |
|
|
|
628 |
/**
|
|
|
629 |
* Function to execute, int constant
|
|
|
630 |
* @property FN
|
|
|
631 |
* @type int
|
|
|
632 |
* @static
|
|
|
633 |
* @final
|
|
|
634 |
*/
|
|
|
635 |
FN: 2,
|
|
|
636 |
|
|
|
637 |
/**
|
|
|
638 |
* Function wrapped for context correction and cleanup, int constant
|
|
|
639 |
* @property WFN
|
|
|
640 |
* @type int
|
|
|
641 |
* @static
|
|
|
642 |
* @final
|
|
|
643 |
*/
|
|
|
644 |
WFN: 3,
|
|
|
645 |
|
|
|
646 |
/**
|
|
|
647 |
* Object passed in by the user that will be returned as a
|
|
|
648 |
* parameter to the callback, int constant. Specific to
|
|
|
649 |
* unload listeners
|
|
|
650 |
* @property OBJ
|
|
|
651 |
* @type int
|
|
|
652 |
* @static
|
|
|
653 |
* @final
|
|
|
654 |
*/
|
|
|
655 |
UNLOAD_OBJ: 3,
|
|
|
656 |
|
|
|
657 |
/**
|
|
|
658 |
* Adjusted context, either the element we are registering the event
|
|
|
659 |
* on or the custom object passed in by the listener, int constant
|
|
|
660 |
* @property ADJ_SCOPE
|
|
|
661 |
* @type int
|
|
|
662 |
* @static
|
|
|
663 |
* @final
|
|
|
664 |
*/
|
|
|
665 |
ADJ_SCOPE: 4,
|
|
|
666 |
|
|
|
667 |
/**
|
|
|
668 |
* The original obj passed into addListener
|
|
|
669 |
* @property OBJ
|
|
|
670 |
* @type int
|
|
|
671 |
* @static
|
|
|
672 |
* @final
|
|
|
673 |
*/
|
|
|
674 |
OBJ: 5,
|
|
|
675 |
|
|
|
676 |
/**
|
|
|
677 |
* The original context parameter passed into addListener
|
|
|
678 |
* @property OVERRIDE
|
|
|
679 |
* @type int
|
|
|
680 |
* @static
|
|
|
681 |
* @final
|
|
|
682 |
*/
|
|
|
683 |
OVERRIDE: 6,
|
|
|
684 |
|
|
|
685 |
/**
|
|
|
686 |
* The original capture parameter passed into addListener
|
|
|
687 |
* @property CAPTURE
|
|
|
688 |
* @type int
|
|
|
689 |
* @static
|
|
|
690 |
* @final
|
|
|
691 |
*/
|
|
|
692 |
CAPTURE: 7,
|
|
|
693 |
|
|
|
694 |
/**
|
|
|
695 |
* addListener/removeListener can throw errors in unexpected scenarios.
|
|
|
696 |
* These errors are suppressed, the method returns false, and this property
|
|
|
697 |
* is set
|
|
|
698 |
* @property lastError
|
|
|
699 |
* @static
|
|
|
700 |
* @type Error
|
|
|
701 |
*/
|
|
|
702 |
lastError: null,
|
|
|
703 |
|
|
|
704 |
/**
|
|
|
705 |
* Safari detection
|
|
|
706 |
* @property isSafari
|
|
|
707 |
* @private
|
|
|
708 |
* @static
|
|
|
709 |
* @deprecated use YAHOO.env.ua.webkit
|
|
|
710 |
*/
|
|
|
711 |
isSafari: YAHOO.env.ua.webkit,
|
|
|
712 |
|
|
|
713 |
/**
|
|
|
714 |
* webkit version
|
|
|
715 |
* @property webkit
|
|
|
716 |
* @type string
|
|
|
717 |
* @private
|
|
|
718 |
* @static
|
|
|
719 |
* @deprecated use YAHOO.env.ua.webkit
|
|
|
720 |
*/
|
|
|
721 |
webkit: YAHOO.env.ua.webkit,
|
|
|
722 |
|
|
|
723 |
/**
|
|
|
724 |
* IE detection
|
|
|
725 |
* @property isIE
|
|
|
726 |
* @private
|
|
|
727 |
* @static
|
|
|
728 |
* @deprecated use YAHOO.env.ua.ie
|
|
|
729 |
*/
|
|
|
730 |
isIE: isIE,
|
|
|
731 |
|
|
|
732 |
/**
|
|
|
733 |
* poll handle
|
|
|
734 |
* @property _interval
|
|
|
735 |
* @static
|
|
|
736 |
* @private
|
|
|
737 |
*/
|
|
|
738 |
_interval: null,
|
|
|
739 |
|
|
|
740 |
/**
|
|
|
741 |
* document readystate poll handle
|
|
|
742 |
* @property _dri
|
|
|
743 |
* @static
|
|
|
744 |
* @private
|
|
|
745 |
*/
|
|
|
746 |
_dri: null,
|
|
|
747 |
|
|
|
748 |
|
|
|
749 |
/**
|
|
|
750 |
* Map of special event types
|
|
|
751 |
* @property _specialTypes
|
|
|
752 |
* @static
|
|
|
753 |
* @private
|
|
|
754 |
*/
|
|
|
755 |
_specialTypes: {
|
|
|
756 |
focusin: (isIE ? "focusin" : "focus"),
|
|
|
757 |
focusout: (isIE ? "focusout" : "blur")
|
|
|
758 |
},
|
|
|
759 |
|
|
|
760 |
|
|
|
761 |
/**
|
|
|
762 |
* True when the document is initially usable
|
|
|
763 |
* @property DOMReady
|
|
|
764 |
* @type boolean
|
|
|
765 |
* @static
|
|
|
766 |
*/
|
|
|
767 |
DOMReady: false,
|
|
|
768 |
|
|
|
769 |
/**
|
|
|
770 |
* Errors thrown by subscribers of custom events are caught
|
|
|
771 |
* and the error message is written to the debug console. If
|
|
|
772 |
* this property is set to true, it will also re-throw the
|
|
|
773 |
* error.
|
|
|
774 |
* @property throwErrors
|
|
|
775 |
* @type boolean
|
|
|
776 |
* @default false
|
|
|
777 |
*/
|
|
|
778 |
throwErrors: false,
|
|
|
779 |
|
|
|
780 |
|
|
|
781 |
/**
|
|
|
782 |
* @method startInterval
|
|
|
783 |
* @static
|
|
|
784 |
* @private
|
|
|
785 |
*/
|
|
|
786 |
startInterval: function() {
|
|
|
787 |
if (!this._interval) {
|
|
|
788 |
// var self = this;
|
|
|
789 |
// var callback = function() { self._tryPreloadAttach(); };
|
|
|
790 |
// this._interval = setInterval(callback, this.POLL_INTERVAL);
|
|
|
791 |
this._interval = YAHOO.lang.later(this.POLL_INTERVAL, this, this._tryPreloadAttach, null, true);
|
|
|
792 |
}
|
|
|
793 |
},
|
|
|
794 |
|
|
|
795 |
/**
|
|
|
796 |
* Executes the supplied callback when the item with the supplied
|
|
|
797 |
* id is found. This is meant to be used to execute behavior as
|
|
|
798 |
* soon as possible as the page loads. If you use this after the
|
|
|
799 |
* initial page load it will poll for a fixed time for the element.
|
|
|
800 |
* The number of times it will poll and the frequency are
|
|
|
801 |
* configurable. By default it will poll for 10 seconds.
|
|
|
802 |
*
|
|
|
803 |
* <p>The callback is executed with a single parameter:
|
|
|
804 |
* the custom object parameter, if provided.</p>
|
|
|
805 |
*
|
|
|
806 |
* @method onAvailable
|
|
|
807 |
*
|
|
|
808 |
* @param {string||string[]} id the id of the element, or an array
|
|
|
809 |
* of ids to look for.
|
|
|
810 |
* @param {function} fn what to execute when the element is found.
|
|
|
811 |
* @param {object} obj an optional object to be passed back as
|
|
|
812 |
* a parameter to fn.
|
|
|
813 |
* @param {boolean|object} overrideContext If set to true, fn will execute
|
|
|
814 |
* in the context of obj, if set to an object it
|
|
|
815 |
* will execute in the context of that object
|
|
|
816 |
* @param checkContent {boolean} check child node readiness (onContentReady)
|
|
|
817 |
* @static
|
|
|
818 |
*/
|
|
|
819 |
onAvailable: function(id, fn, obj, overrideContext, checkContent) {
|
|
|
820 |
|
|
|
821 |
var a = (YAHOO.lang.isString(id)) ? [id] : id;
|
|
|
822 |
|
|
|
823 |
for (var i=0; i<a.length; i=i+1) {
|
|
|
824 |
onAvailStack.push({id: a[i],
|
|
|
825 |
fn: fn,
|
|
|
826 |
obj: obj,
|
|
|
827 |
overrideContext: overrideContext,
|
|
|
828 |
checkReady: checkContent });
|
|
|
829 |
}
|
|
|
830 |
|
|
|
831 |
retryCount = this.POLL_RETRYS;
|
|
|
832 |
|
|
|
833 |
this.startInterval();
|
|
|
834 |
},
|
|
|
835 |
|
|
|
836 |
/**
|
|
|
837 |
* Works the same way as onAvailable, but additionally checks the
|
|
|
838 |
* state of sibling elements to determine if the content of the
|
|
|
839 |
* available element is safe to modify.
|
|
|
840 |
*
|
|
|
841 |
* <p>The callback is executed with a single parameter:
|
|
|
842 |
* the custom object parameter, if provided.</p>
|
|
|
843 |
*
|
|
|
844 |
* @method onContentReady
|
|
|
845 |
*
|
|
|
846 |
* @param {string} id the id of the element to look for.
|
|
|
847 |
* @param {function} fn what to execute when the element is ready.
|
|
|
848 |
* @param {object} obj an optional object to be passed back as
|
|
|
849 |
* a parameter to fn.
|
|
|
850 |
* @param {boolean|object} overrideContext If set to true, fn will execute
|
|
|
851 |
* in the context of obj. If an object, fn will
|
|
|
852 |
* exectute in the context of that object
|
|
|
853 |
*
|
|
|
854 |
* @static
|
|
|
855 |
*/
|
|
|
856 |
onContentReady: function(id, fn, obj, overrideContext) {
|
|
|
857 |
this.onAvailable(id, fn, obj, overrideContext, true);
|
|
|
858 |
},
|
|
|
859 |
|
|
|
860 |
/**
|
|
|
861 |
* Executes the supplied callback when the DOM is first usable. This
|
|
|
862 |
* will execute immediately if called after the DOMReady event has
|
|
|
863 |
* fired. @todo the DOMContentReady event does not fire when the
|
|
|
864 |
* script is dynamically injected into the page. This means the
|
|
|
865 |
* DOMReady custom event will never fire in FireFox or Opera when the
|
|
|
866 |
* library is injected. It _will_ fire in Safari, and the IE
|
|
|
867 |
* implementation would allow for us to fire it if the defered script
|
|
|
868 |
* is not available. We want this to behave the same in all browsers.
|
|
|
869 |
* Is there a way to identify when the script has been injected
|
|
|
870 |
* instead of included inline? Is there a way to know whether the
|
|
|
871 |
* window onload event has fired without having had a listener attached
|
|
|
872 |
* to it when it did so?
|
|
|
873 |
*
|
|
|
874 |
* <p>The callback is a CustomEvent, so the signature is:</p>
|
|
|
875 |
* <p>type <string>, args <array>, customobject <object></p>
|
|
|
876 |
* <p>For DOMReady events, there are no fire argments, so the
|
|
|
877 |
* signature is:</p>
|
|
|
878 |
* <p>"DOMReady", [], obj</p>
|
|
|
879 |
*
|
|
|
880 |
*
|
|
|
881 |
* @method onDOMReady
|
|
|
882 |
*
|
|
|
883 |
* @param {function} fn what to execute when the element is found.
|
|
|
884 |
* @param {object} obj an optional object to be passed back as
|
|
|
885 |
* a parameter to fn.
|
|
|
886 |
* @param {boolean|object} overrideContext If set to true, fn will execute
|
|
|
887 |
* in the context of obj, if set to an object it
|
|
|
888 |
* will execute in the context of that object
|
|
|
889 |
*
|
|
|
890 |
* @static
|
|
|
891 |
*/
|
|
|
892 |
// onDOMReady: function(fn, obj, overrideContext) {
|
|
|
893 |
onDOMReady: function() {
|
|
|
894 |
this.DOMReadyEvent.subscribe.apply(this.DOMReadyEvent, arguments);
|
|
|
895 |
},
|
|
|
896 |
|
|
|
897 |
|
|
|
898 |
/**
|
|
|
899 |
* Appends an event handler
|
|
|
900 |
*
|
|
|
901 |
* @method _addListener
|
|
|
902 |
*
|
|
|
903 |
* @param {String|HTMLElement|Array|NodeList} el An id, an element
|
|
|
904 |
* reference, or a collection of ids and/or elements to assign the
|
|
|
905 |
* listener to.
|
|
|
906 |
* @param {String} sType The type of event to append
|
|
|
907 |
* @param {Function} fn The method the event invokes
|
|
|
908 |
* @param {Object} obj An arbitrary object that will be
|
|
|
909 |
* passed as a parameter to the handler
|
|
|
910 |
* @param {Boolean|object} overrideContext If true, the obj passed in becomes
|
|
|
911 |
* the execution context of the listener. If an
|
|
|
912 |
* object, this object becomes the execution
|
|
|
913 |
* context.
|
|
|
914 |
* @param {boolen} capture capture or bubble phase
|
|
|
915 |
* @return {Boolean} True if the action was successful or defered,
|
|
|
916 |
* false if one or more of the elements
|
|
|
917 |
* could not have the listener attached,
|
|
|
918 |
* or if the operation throws an exception.
|
|
|
919 |
* @private
|
|
|
920 |
* @static
|
|
|
921 |
*/
|
|
|
922 |
_addListener: function(el, sType, fn, obj, overrideContext, bCapture) {
|
|
|
923 |
|
|
|
924 |
if (!fn || !fn.call) {
|
|
|
925 |
YAHOO.log(sType + " addListener failed, invalid callback", "error", "Event");
|
|
|
926 |
return false;
|
|
|
927 |
}
|
|
|
928 |
|
|
|
929 |
// The el argument can be an array of elements or element ids.
|
|
|
930 |
if ( this._isValidCollection(el)) {
|
|
|
931 |
var ok = true;
|
|
|
932 |
for (var i=0,len=el.length; i<len; ++i) {
|
|
|
933 |
ok = this.on(el[i],
|
|
|
934 |
sType,
|
|
|
935 |
fn,
|
|
|
936 |
obj,
|
|
|
937 |
overrideContext) && ok;
|
|
|
938 |
}
|
|
|
939 |
return ok;
|
|
|
940 |
|
|
|
941 |
} else if (YAHOO.lang.isString(el)) {
|
|
|
942 |
var oEl = this.getEl(el);
|
|
|
943 |
// If the el argument is a string, we assume it is
|
|
|
944 |
// actually the id of the element. If the page is loaded
|
|
|
945 |
// we convert el to the actual element, otherwise we
|
|
|
946 |
// defer attaching the event until onload event fires
|
|
|
947 |
|
|
|
948 |
// check to see if we need to delay hooking up the event
|
|
|
949 |
// until after the page loads.
|
|
|
950 |
if (oEl) {
|
|
|
951 |
el = oEl;
|
|
|
952 |
} else {
|
|
|
953 |
// defer adding the event until the element is available
|
|
|
954 |
this.onAvailable(el, function() {
|
|
|
955 |
YAHOO.util.Event._addListener(el, sType, fn, obj, overrideContext, bCapture);
|
|
|
956 |
});
|
|
|
957 |
|
|
|
958 |
return true;
|
|
|
959 |
}
|
|
|
960 |
}
|
|
|
961 |
|
|
|
962 |
// Element should be an html element or an array if we get
|
|
|
963 |
// here.
|
|
|
964 |
if (!el) {
|
|
|
965 |
// this.logger.debug("unable to attach event " + sType);
|
|
|
966 |
return false;
|
|
|
967 |
}
|
|
|
968 |
|
|
|
969 |
// we need to make sure we fire registered unload events
|
|
|
970 |
// prior to automatically unhooking them. So we hang on to
|
|
|
971 |
// these instead of attaching them to the window and fire the
|
|
|
972 |
// handles explicitly during our one unload event.
|
|
|
973 |
if ("unload" == sType && obj !== this) {
|
|
|
974 |
unloadListeners[unloadListeners.length] =
|
|
|
975 |
[el, sType, fn, obj, overrideContext];
|
|
|
976 |
return true;
|
|
|
977 |
}
|
|
|
978 |
|
|
|
979 |
// this.logger.debug("Adding handler: " + el + ", " + sType);
|
|
|
980 |
|
|
|
981 |
// if the user chooses to override the context, we use the custom
|
|
|
982 |
// object passed in, otherwise the executing context will be the
|
|
|
983 |
// HTML element that the event is registered on
|
|
|
984 |
var context = el;
|
|
|
985 |
if (overrideContext) {
|
|
|
986 |
if (overrideContext === true) {
|
|
|
987 |
context = obj;
|
|
|
988 |
} else {
|
|
|
989 |
context = overrideContext;
|
|
|
990 |
}
|
|
|
991 |
}
|
|
|
992 |
|
|
|
993 |
// wrap the function so we can return the obj object when
|
|
|
994 |
// the event fires;
|
|
|
995 |
var wrappedFn = function(e) {
|
|
|
996 |
return fn.call(context, YAHOO.util.Event.getEvent(e, el),
|
|
|
997 |
obj);
|
|
|
998 |
};
|
|
|
999 |
|
|
|
1000 |
var li = [el, sType, fn, wrappedFn, context, obj, overrideContext, bCapture];
|
|
|
1001 |
var index = listeners.length;
|
|
|
1002 |
// cache the listener so we can try to automatically unload
|
|
|
1003 |
listeners[index] = li;
|
|
|
1004 |
|
|
|
1005 |
try {
|
|
|
1006 |
this._simpleAdd(el, sType, wrappedFn, bCapture);
|
|
|
1007 |
} catch(ex) {
|
|
|
1008 |
// handle an error trying to attach an event. If it fails
|
|
|
1009 |
// we need to clean up the cache
|
|
|
1010 |
this.lastError = ex;
|
|
|
1011 |
this.removeListener(el, sType, fn);
|
|
|
1012 |
return false;
|
|
|
1013 |
}
|
|
|
1014 |
|
|
|
1015 |
return true;
|
|
|
1016 |
|
|
|
1017 |
},
|
|
|
1018 |
|
|
|
1019 |
/**
|
|
|
1020 |
* Checks to see if the type requested is a special type
|
|
|
1021 |
* (as defined by the _specialTypes hash), and (if so) returns
|
|
|
1022 |
* the special type name.
|
|
|
1023 |
*
|
|
|
1024 |
* @method _getType
|
|
|
1025 |
*
|
|
|
1026 |
* @param {String} sType The type to look up
|
|
|
1027 |
* @private
|
|
|
1028 |
*/
|
|
|
1029 |
_getType: function (type) {
|
|
|
1030 |
|
|
|
1031 |
return this._specialTypes[type] || type;
|
|
|
1032 |
|
|
|
1033 |
},
|
|
|
1034 |
|
|
|
1035 |
|
|
|
1036 |
/**
|
|
|
1037 |
* Appends an event handler
|
|
|
1038 |
*
|
|
|
1039 |
* @method addListener
|
|
|
1040 |
*
|
|
|
1041 |
* @param {String|HTMLElement|Array|NodeList} el An id, an element
|
|
|
1042 |
* reference, or a collection of ids and/or elements to assign the
|
|
|
1043 |
* listener to.
|
|
|
1044 |
* @param {String} sType The type of event to append
|
|
|
1045 |
* @param {Function} fn The method the event invokes
|
|
|
1046 |
* @param {Object} obj An arbitrary object that will be
|
|
|
1047 |
* passed as a parameter to the handler
|
|
|
1048 |
* @param {Boolean|object} overrideContext If true, the obj passed in becomes
|
|
|
1049 |
* the execution context of the listener. If an
|
|
|
1050 |
* object, this object becomes the execution
|
|
|
1051 |
* context.
|
|
|
1052 |
* @return {Boolean} True if the action was successful or defered,
|
|
|
1053 |
* false if one or more of the elements
|
|
|
1054 |
* could not have the listener attached,
|
|
|
1055 |
* or if the operation throws an exception.
|
|
|
1056 |
* @static
|
|
|
1057 |
*/
|
|
|
1058 |
addListener: function (el, sType, fn, obj, overrideContext) {
|
|
|
1059 |
|
|
|
1060 |
var capture = ((sType == FOCUSIN || sType == FOCUSOUT) && !YAHOO.env.ua.ie) ? true : false;
|
|
|
1061 |
|
|
|
1062 |
return this._addListener(el, this._getType(sType), fn, obj, overrideContext, capture);
|
|
|
1063 |
|
|
|
1064 |
},
|
|
|
1065 |
|
|
|
1066 |
|
|
|
1067 |
/**
|
|
|
1068 |
* Attaches a focusin event listener to the specified element for
|
|
|
1069 |
* the purpose of listening for the focus event on the element's
|
|
|
1070 |
* descendants.
|
|
|
1071 |
* @method addFocusListener
|
|
|
1072 |
*
|
|
|
1073 |
* @param {String|HTMLElement|Array|NodeList} el An id, an element
|
|
|
1074 |
* reference, or a collection of ids and/or elements to assign the
|
|
|
1075 |
* listener to.
|
|
|
1076 |
* @param {Function} fn The method the event invokes
|
|
|
1077 |
* @param {Object} obj An arbitrary object that will be
|
|
|
1078 |
* passed as a parameter to the handler
|
|
|
1079 |
* @param {Boolean|object} overrideContext If true, the obj passed in becomes
|
|
|
1080 |
* the execution context of the listener. If an
|
|
|
1081 |
* object, this object becomes the execution
|
|
|
1082 |
* context.
|
|
|
1083 |
* @return {Boolean} True if the action was successful or defered,
|
|
|
1084 |
* false if one or more of the elements
|
|
|
1085 |
* could not have the listener attached,
|
|
|
1086 |
* or if the operation throws an exception.
|
|
|
1087 |
* @static
|
|
|
1088 |
* @deprecated use YAHOO.util.Event.on and specify "focusin" as the event type.
|
|
|
1089 |
*/
|
|
|
1090 |
addFocusListener: function (el, fn, obj, overrideContext) {
|
|
|
1091 |
return this.on(el, FOCUSIN, fn, obj, overrideContext);
|
|
|
1092 |
},
|
|
|
1093 |
|
|
|
1094 |
|
|
|
1095 |
/**
|
|
|
1096 |
* Removes a focusin event listener to the specified element for
|
|
|
1097 |
* the purpose of listening for the focus event on the element's
|
|
|
1098 |
* descendants.
|
|
|
1099 |
*
|
|
|
1100 |
* @method removeFocusListener
|
|
|
1101 |
*
|
|
|
1102 |
* @param {String|HTMLElement|Array|NodeList} el An id, an element
|
|
|
1103 |
* reference, or a collection of ids and/or elements to remove
|
|
|
1104 |
* the listener from.
|
|
|
1105 |
* @param {Function} fn the method the event invokes. If fn is
|
|
|
1106 |
* undefined, then all event handlers for the type of event are
|
|
|
1107 |
* removed.
|
|
|
1108 |
* @return {boolean} true if the unbind was successful, false
|
|
|
1109 |
* otherwise.
|
|
|
1110 |
* @static
|
|
|
1111 |
* @deprecated use YAHOO.util.Event.removeListener and specify "focusin" as the event type.
|
|
|
1112 |
*/
|
|
|
1113 |
removeFocusListener: function (el, fn) {
|
|
|
1114 |
return this.removeListener(el, FOCUSIN, fn);
|
|
|
1115 |
},
|
|
|
1116 |
|
|
|
1117 |
/**
|
|
|
1118 |
* Attaches a focusout event listener to the specified element for
|
|
|
1119 |
* the purpose of listening for the blur event on the element's
|
|
|
1120 |
* descendants.
|
|
|
1121 |
*
|
|
|
1122 |
* @method addBlurListener
|
|
|
1123 |
*
|
|
|
1124 |
* @param {String|HTMLElement|Array|NodeList} el An id, an element
|
|
|
1125 |
* reference, or a collection of ids and/or elements to assign the
|
|
|
1126 |
* listener to.
|
|
|
1127 |
* @param {Function} fn The method the event invokes
|
|
|
1128 |
* @param {Object} obj An arbitrary object that will be
|
|
|
1129 |
* passed as a parameter to the handler
|
|
|
1130 |
* @param {Boolean|object} overrideContext If true, the obj passed in becomes
|
|
|
1131 |
* the execution context of the listener. If an
|
|
|
1132 |
* object, this object becomes the execution
|
|
|
1133 |
* context.
|
|
|
1134 |
* @return {Boolean} True if the action was successful or defered,
|
|
|
1135 |
* false if one or more of the elements
|
|
|
1136 |
* could not have the listener attached,
|
|
|
1137 |
* or if the operation throws an exception.
|
|
|
1138 |
* @static
|
|
|
1139 |
* @deprecated use YAHOO.util.Event.on and specify "focusout" as the event type.
|
|
|
1140 |
*/
|
|
|
1141 |
addBlurListener: function (el, fn, obj, overrideContext) {
|
|
|
1142 |
return this.on(el, FOCUSOUT, fn, obj, overrideContext);
|
|
|
1143 |
},
|
|
|
1144 |
|
|
|
1145 |
/**
|
|
|
1146 |
* Removes a focusout event listener to the specified element for
|
|
|
1147 |
* the purpose of listening for the blur event on the element's
|
|
|
1148 |
* descendants.
|
|
|
1149 |
*
|
|
|
1150 |
* @method removeBlurListener
|
|
|
1151 |
*
|
|
|
1152 |
* @param {String|HTMLElement|Array|NodeList} el An id, an element
|
|
|
1153 |
* reference, or a collection of ids and/or elements to remove
|
|
|
1154 |
* the listener from.
|
|
|
1155 |
* @param {Function} fn the method the event invokes. If fn is
|
|
|
1156 |
* undefined, then all event handlers for the type of event are
|
|
|
1157 |
* removed.
|
|
|
1158 |
* @return {boolean} true if the unbind was successful, false
|
|
|
1159 |
* otherwise.
|
|
|
1160 |
* @static
|
|
|
1161 |
* @deprecated use YAHOO.util.Event.removeListener and specify "focusout" as the event type.
|
|
|
1162 |
*/
|
|
|
1163 |
removeBlurListener: function (el, fn) {
|
|
|
1164 |
return this.removeListener(el, FOCUSOUT, fn);
|
|
|
1165 |
},
|
|
|
1166 |
|
|
|
1167 |
/**
|
|
|
1168 |
* Removes an event listener
|
|
|
1169 |
*
|
|
|
1170 |
* @method removeListener
|
|
|
1171 |
*
|
|
|
1172 |
* @param {String|HTMLElement|Array|NodeList} el An id, an element
|
|
|
1173 |
* reference, or a collection of ids and/or elements to remove
|
|
|
1174 |
* the listener from.
|
|
|
1175 |
* @param {String} sType the type of event to remove.
|
|
|
1176 |
* @param {Function} fn the method the event invokes. If fn is
|
|
|
1177 |
* undefined, then all event handlers for the type of event are
|
|
|
1178 |
* removed.
|
|
|
1179 |
* @return {boolean} true if the unbind was successful, false
|
|
|
1180 |
* otherwise.
|
|
|
1181 |
* @static
|
|
|
1182 |
*/
|
|
|
1183 |
removeListener: function(el, sType, fn) {
|
|
|
1184 |
var i, len, li;
|
|
|
1185 |
|
|
|
1186 |
sType = this._getType(sType);
|
|
|
1187 |
|
|
|
1188 |
// The el argument can be a string
|
|
|
1189 |
if (typeof el == "string") {
|
|
|
1190 |
el = this.getEl(el);
|
|
|
1191 |
// The el argument can be an array of elements or element ids.
|
|
|
1192 |
} else if ( this._isValidCollection(el)) {
|
|
|
1193 |
var ok = true;
|
|
|
1194 |
for (i=el.length-1; i>-1; i--) {
|
|
|
1195 |
ok = ( this.removeListener(el[i], sType, fn) && ok );
|
|
|
1196 |
}
|
|
|
1197 |
return ok;
|
|
|
1198 |
}
|
|
|
1199 |
|
|
|
1200 |
if (!fn || !fn.call) {
|
|
|
1201 |
// this.logger.debug("Error, function is not valid " + fn);
|
|
|
1202 |
//return false;
|
|
|
1203 |
return this.purgeElement(el, false, sType);
|
|
|
1204 |
}
|
|
|
1205 |
|
|
|
1206 |
if ("unload" == sType) {
|
|
|
1207 |
|
|
|
1208 |
for (i=unloadListeners.length-1; i>-1; i--) {
|
|
|
1209 |
li = unloadListeners[i];
|
|
|
1210 |
if (li &&
|
|
|
1211 |
li[0] == el &&
|
|
|
1212 |
li[1] == sType &&
|
|
|
1213 |
li[2] == fn) {
|
|
|
1214 |
unloadListeners.splice(i, 1);
|
|
|
1215 |
// unloadListeners[i]=null;
|
|
|
1216 |
return true;
|
|
|
1217 |
}
|
|
|
1218 |
}
|
|
|
1219 |
|
|
|
1220 |
return false;
|
|
|
1221 |
}
|
|
|
1222 |
|
|
|
1223 |
var cacheItem = null;
|
|
|
1224 |
|
|
|
1225 |
// The index is a hidden parameter; needed to remove it from
|
|
|
1226 |
// the method signature because it was tempting users to
|
|
|
1227 |
// try and take advantage of it, which is not possible.
|
|
|
1228 |
var index = arguments[3];
|
|
|
1229 |
|
|
|
1230 |
if ("undefined" === typeof index) {
|
|
|
1231 |
index = this._getCacheIndex(listeners, el, sType, fn);
|
|
|
1232 |
}
|
|
|
1233 |
|
|
|
1234 |
if (index >= 0) {
|
|
|
1235 |
cacheItem = listeners[index];
|
|
|
1236 |
}
|
|
|
1237 |
|
|
|
1238 |
if (!el || !cacheItem) {
|
|
|
1239 |
// this.logger.debug("cached listener not found");
|
|
|
1240 |
return false;
|
|
|
1241 |
}
|
|
|
1242 |
|
|
|
1243 |
// this.logger.debug("Removing handler: " + el + ", " + sType);
|
|
|
1244 |
|
|
|
1245 |
var bCapture = cacheItem[this.CAPTURE] === true ? true : false;
|
|
|
1246 |
|
|
|
1247 |
try {
|
|
|
1248 |
this._simpleRemove(el, sType, cacheItem[this.WFN], bCapture);
|
|
|
1249 |
} catch(ex) {
|
|
|
1250 |
this.lastError = ex;
|
|
|
1251 |
return false;
|
|
|
1252 |
}
|
|
|
1253 |
|
|
|
1254 |
// removed the wrapped handler
|
|
|
1255 |
delete listeners[index][this.WFN];
|
|
|
1256 |
delete listeners[index][this.FN];
|
|
|
1257 |
listeners.splice(index, 1);
|
|
|
1258 |
// listeners[index]=null;
|
|
|
1259 |
|
|
|
1260 |
return true;
|
|
|
1261 |
|
|
|
1262 |
},
|
|
|
1263 |
|
|
|
1264 |
/**
|
|
|
1265 |
* Returns the event's target element. Safari sometimes provides
|
|
|
1266 |
* a text node, and this is automatically resolved to the text
|
|
|
1267 |
* node's parent so that it behaves like other browsers.
|
|
|
1268 |
* @method getTarget
|
|
|
1269 |
* @param {Event} ev the event
|
|
|
1270 |
* @param {boolean} resolveTextNode when set to true the target's
|
|
|
1271 |
* parent will be returned if the target is a
|
|
|
1272 |
* text node. @deprecated, the text node is
|
|
|
1273 |
* now resolved automatically
|
|
|
1274 |
* @return {HTMLElement} the event's target
|
|
|
1275 |
* @static
|
|
|
1276 |
*/
|
|
|
1277 |
getTarget: function(ev, resolveTextNode) {
|
|
|
1278 |
var t = ev.target || ev.srcElement;
|
|
|
1279 |
return this.resolveTextNode(t);
|
|
|
1280 |
},
|
|
|
1281 |
|
|
|
1282 |
/**
|
|
|
1283 |
* In some cases, some browsers will return a text node inside
|
|
|
1284 |
* the actual element that was targeted. This normalizes the
|
|
|
1285 |
* return value for getTarget and getRelatedTarget.
|
|
|
1286 |
*
|
|
|
1287 |
* If accessing a property of the node throws an error, this is
|
|
|
1288 |
* probably the anonymous div wrapper Gecko adds inside text
|
|
|
1289 |
* nodes. This likely will only occur when attempting to access
|
|
|
1290 |
* the relatedTarget. In this case, we now return null because
|
|
|
1291 |
* the anonymous div is completely useless and we do not know
|
|
|
1292 |
* what the related target was because we can't even get to
|
|
|
1293 |
* the element's parent node.
|
|
|
1294 |
*
|
|
|
1295 |
* @method resolveTextNode
|
|
|
1296 |
* @param {HTMLElement} node node to resolve
|
|
|
1297 |
* @return {HTMLElement} the normized node
|
|
|
1298 |
* @static
|
|
|
1299 |
*/
|
|
|
1300 |
resolveTextNode: function(n) {
|
|
|
1301 |
try {
|
|
|
1302 |
if (n && 3 == n.nodeType) {
|
|
|
1303 |
return n.parentNode;
|
|
|
1304 |
}
|
|
|
1305 |
} catch(e) {
|
|
|
1306 |
return null;
|
|
|
1307 |
}
|
|
|
1308 |
|
|
|
1309 |
return n;
|
|
|
1310 |
},
|
|
|
1311 |
|
|
|
1312 |
/**
|
|
|
1313 |
* Returns the event's pageX
|
|
|
1314 |
* @method getPageX
|
|
|
1315 |
* @param {Event} ev the event
|
|
|
1316 |
* @return {int} the event's pageX
|
|
|
1317 |
* @static
|
|
|
1318 |
*/
|
|
|
1319 |
getPageX: function(ev) {
|
|
|
1320 |
var x = ev.pageX;
|
|
|
1321 |
if (!x && 0 !== x) {
|
|
|
1322 |
x = ev.clientX || 0;
|
|
|
1323 |
|
|
|
1324 |
if ( this.isIE ) {
|
|
|
1325 |
x += this._getScrollLeft();
|
|
|
1326 |
}
|
|
|
1327 |
}
|
|
|
1328 |
|
|
|
1329 |
return x;
|
|
|
1330 |
},
|
|
|
1331 |
|
|
|
1332 |
/**
|
|
|
1333 |
* Returns the event's pageY
|
|
|
1334 |
* @method getPageY
|
|
|
1335 |
* @param {Event} ev the event
|
|
|
1336 |
* @return {int} the event's pageY
|
|
|
1337 |
* @static
|
|
|
1338 |
*/
|
|
|
1339 |
getPageY: function(ev) {
|
|
|
1340 |
var y = ev.pageY;
|
|
|
1341 |
if (!y && 0 !== y) {
|
|
|
1342 |
y = ev.clientY || 0;
|
|
|
1343 |
|
|
|
1344 |
if ( this.isIE ) {
|
|
|
1345 |
y += this._getScrollTop();
|
|
|
1346 |
}
|
|
|
1347 |
}
|
|
|
1348 |
|
|
|
1349 |
|
|
|
1350 |
return y;
|
|
|
1351 |
},
|
|
|
1352 |
|
|
|
1353 |
/**
|
|
|
1354 |
* Returns the pageX and pageY properties as an indexed array.
|
|
|
1355 |
* @method getXY
|
|
|
1356 |
* @param {Event} ev the event
|
|
|
1357 |
* @return {[x, y]} the pageX and pageY properties of the event
|
|
|
1358 |
* @static
|
|
|
1359 |
*/
|
|
|
1360 |
getXY: function(ev) {
|
|
|
1361 |
return [this.getPageX(ev), this.getPageY(ev)];
|
|
|
1362 |
},
|
|
|
1363 |
|
|
|
1364 |
/**
|
|
|
1365 |
* Returns the event's related target
|
|
|
1366 |
* @method getRelatedTarget
|
|
|
1367 |
* @param {Event} ev the event
|
|
|
1368 |
* @return {HTMLElement} the event's relatedTarget
|
|
|
1369 |
* @static
|
|
|
1370 |
*/
|
|
|
1371 |
getRelatedTarget: function(ev) {
|
|
|
1372 |
var t = ev.relatedTarget;
|
|
|
1373 |
if (!t) {
|
|
|
1374 |
if (ev.type == "mouseout") {
|
|
|
1375 |
t = ev.toElement;
|
|
|
1376 |
} else if (ev.type == "mouseover") {
|
|
|
1377 |
t = ev.fromElement;
|
|
|
1378 |
}
|
|
|
1379 |
}
|
|
|
1380 |
|
|
|
1381 |
return this.resolveTextNode(t);
|
|
|
1382 |
},
|
|
|
1383 |
|
|
|
1384 |
/**
|
|
|
1385 |
* Returns the time of the event. If the time is not included, the
|
|
|
1386 |
* event is modified using the current time.
|
|
|
1387 |
* @method getTime
|
|
|
1388 |
* @param {Event} ev the event
|
|
|
1389 |
* @return {Date} the time of the event
|
|
|
1390 |
* @static
|
|
|
1391 |
*/
|
|
|
1392 |
getTime: function(ev) {
|
|
|
1393 |
if (!ev.time) {
|
|
|
1394 |
var t = new Date().getTime();
|
|
|
1395 |
try {
|
|
|
1396 |
ev.time = t;
|
|
|
1397 |
} catch(ex) {
|
|
|
1398 |
this.lastError = ex;
|
|
|
1399 |
return t;
|
|
|
1400 |
}
|
|
|
1401 |
}
|
|
|
1402 |
|
|
|
1403 |
return ev.time;
|
|
|
1404 |
},
|
|
|
1405 |
|
|
|
1406 |
/**
|
|
|
1407 |
* Convenience method for stopPropagation + preventDefault
|
|
|
1408 |
* @method stopEvent
|
|
|
1409 |
* @param {Event} ev the event
|
|
|
1410 |
* @static
|
|
|
1411 |
*/
|
|
|
1412 |
stopEvent: function(ev) {
|
|
|
1413 |
this.stopPropagation(ev);
|
|
|
1414 |
this.preventDefault(ev);
|
|
|
1415 |
},
|
|
|
1416 |
|
|
|
1417 |
/**
|
|
|
1418 |
* Stops event propagation
|
|
|
1419 |
* @method stopPropagation
|
|
|
1420 |
* @param {Event} ev the event
|
|
|
1421 |
* @static
|
|
|
1422 |
*/
|
|
|
1423 |
stopPropagation: function(ev) {
|
|
|
1424 |
if (ev.stopPropagation) {
|
|
|
1425 |
ev.stopPropagation();
|
|
|
1426 |
} else {
|
|
|
1427 |
ev.cancelBubble = true;
|
|
|
1428 |
}
|
|
|
1429 |
},
|
|
|
1430 |
|
|
|
1431 |
/**
|
|
|
1432 |
* Prevents the default behavior of the event
|
|
|
1433 |
* @method preventDefault
|
|
|
1434 |
* @param {Event} ev the event
|
|
|
1435 |
* @static
|
|
|
1436 |
*/
|
|
|
1437 |
preventDefault: function(ev) {
|
|
|
1438 |
if (ev.preventDefault) {
|
|
|
1439 |
ev.preventDefault();
|
|
|
1440 |
} else {
|
|
|
1441 |
ev.returnValue = false;
|
|
|
1442 |
}
|
|
|
1443 |
},
|
|
|
1444 |
|
|
|
1445 |
/**
|
|
|
1446 |
* Finds the event in the window object, the caller's arguments, or
|
|
|
1447 |
* in the arguments of another method in the callstack. This is
|
|
|
1448 |
* executed automatically for events registered through the event
|
|
|
1449 |
* manager, so the implementer should not normally need to execute
|
|
|
1450 |
* this function at all.
|
|
|
1451 |
* @method getEvent
|
|
|
1452 |
* @param {Event} e the event parameter from the handler
|
|
|
1453 |
* @param {HTMLElement} boundEl the element the listener is attached to
|
|
|
1454 |
* @return {Event} the event
|
|
|
1455 |
* @static
|
|
|
1456 |
*/
|
|
|
1457 |
getEvent: function(e, boundEl) {
|
|
|
1458 |
var ev = e || window.event;
|
|
|
1459 |
|
|
|
1460 |
if (!ev) {
|
|
|
1461 |
var c = this.getEvent.caller;
|
|
|
1462 |
while (c) {
|
|
|
1463 |
ev = c.arguments[0];
|
|
|
1464 |
if (ev && Event == ev.constructor) {
|
|
|
1465 |
break;
|
|
|
1466 |
}
|
|
|
1467 |
c = c.caller;
|
|
|
1468 |
}
|
|
|
1469 |
}
|
|
|
1470 |
|
|
|
1471 |
return ev;
|
|
|
1472 |
},
|
|
|
1473 |
|
|
|
1474 |
/**
|
|
|
1475 |
* Returns the charcode for an event
|
|
|
1476 |
* @method getCharCode
|
|
|
1477 |
* @param {Event} ev the event
|
|
|
1478 |
* @return {int} the event's charCode
|
|
|
1479 |
* @static
|
|
|
1480 |
*/
|
|
|
1481 |
getCharCode: function(ev) {
|
|
|
1482 |
var code = ev.keyCode || ev.charCode || 0;
|
|
|
1483 |
|
|
|
1484 |
// webkit key normalization
|
|
|
1485 |
if (YAHOO.env.ua.webkit && (code in webkitKeymap)) {
|
|
|
1486 |
code = webkitKeymap[code];
|
|
|
1487 |
}
|
|
|
1488 |
return code;
|
|
|
1489 |
},
|
|
|
1490 |
|
|
|
1491 |
/**
|
|
|
1492 |
* Locating the saved event handler data by function ref
|
|
|
1493 |
*
|
|
|
1494 |
* @method _getCacheIndex
|
|
|
1495 |
* @static
|
|
|
1496 |
* @private
|
|
|
1497 |
*/
|
|
|
1498 |
_getCacheIndex: function(a, el, sType, fn) {
|
|
|
1499 |
for (var i=0, l=a.length; i<l; i=i+1) {
|
|
|
1500 |
var li = a[i];
|
|
|
1501 |
if ( li &&
|
|
|
1502 |
li[this.FN] == fn &&
|
|
|
1503 |
li[this.EL] == el &&
|
|
|
1504 |
li[this.TYPE] == sType ) {
|
|
|
1505 |
return i;
|
|
|
1506 |
}
|
|
|
1507 |
}
|
|
|
1508 |
|
|
|
1509 |
return -1;
|
|
|
1510 |
},
|
|
|
1511 |
|
|
|
1512 |
/**
|
|
|
1513 |
* Generates an unique ID for the element if it does not already
|
|
|
1514 |
* have one.
|
|
|
1515 |
* @method generateId
|
|
|
1516 |
* @param el the element to create the id for
|
|
|
1517 |
* @return {string} the resulting id of the element
|
|
|
1518 |
* @static
|
|
|
1519 |
*/
|
|
|
1520 |
generateId: function(el) {
|
|
|
1521 |
var id = el.id;
|
|
|
1522 |
|
|
|
1523 |
if (!id) {
|
|
|
1524 |
id = "yuievtautoid-" + counter;
|
|
|
1525 |
++counter;
|
|
|
1526 |
el.id = id;
|
|
|
1527 |
}
|
|
|
1528 |
|
|
|
1529 |
return id;
|
|
|
1530 |
},
|
|
|
1531 |
|
|
|
1532 |
|
|
|
1533 |
/**
|
|
|
1534 |
* We want to be able to use getElementsByTagName as a collection
|
|
|
1535 |
* to attach a group of events to. Unfortunately, different
|
|
|
1536 |
* browsers return different types of collections. This function
|
|
|
1537 |
* tests to determine if the object is array-like. It will also
|
|
|
1538 |
* fail if the object is an array, but is empty.
|
|
|
1539 |
* @method _isValidCollection
|
|
|
1540 |
* @param o the object to test
|
|
|
1541 |
* @return {boolean} true if the object is array-like and populated
|
|
|
1542 |
* @static
|
|
|
1543 |
* @private
|
|
|
1544 |
*/
|
|
|
1545 |
_isValidCollection: function(o) {
|
|
|
1546 |
try {
|
|
|
1547 |
return ( o && // o is something
|
|
|
1548 |
typeof o !== "string" && // o is not a string
|
|
|
1549 |
o.length && // o is indexed
|
|
|
1550 |
!o.tagName && // o is not an HTML element
|
|
|
1551 |
!o.alert && // o is not a window
|
|
|
1552 |
typeof o[0] !== "undefined" );
|
|
|
1553 |
} catch(ex) {
|
|
|
1554 |
YAHOO.log("node access error (xframe?)", "warn");
|
|
|
1555 |
return false;
|
|
|
1556 |
}
|
|
|
1557 |
|
|
|
1558 |
},
|
|
|
1559 |
|
|
|
1560 |
/**
|
|
|
1561 |
* @private
|
|
|
1562 |
* @property elCache
|
|
|
1563 |
* DOM element cache
|
|
|
1564 |
* @static
|
|
|
1565 |
* @deprecated Elements are not cached due to issues that arise when
|
|
|
1566 |
* elements are removed and re-added
|
|
|
1567 |
*/
|
|
|
1568 |
elCache: {},
|
|
|
1569 |
|
|
|
1570 |
/**
|
|
|
1571 |
* We cache elements bound by id because when the unload event
|
|
|
1572 |
* fires, we can no longer use document.getElementById
|
|
|
1573 |
* @method getEl
|
|
|
1574 |
* @static
|
|
|
1575 |
* @private
|
|
|
1576 |
* @deprecated Elements are not cached any longer
|
|
|
1577 |
*/
|
|
|
1578 |
getEl: function(id) {
|
|
|
1579 |
return (typeof id === "string") ? document.getElementById(id) : id;
|
|
|
1580 |
},
|
|
|
1581 |
|
|
|
1582 |
/**
|
|
|
1583 |
* Clears the element cache
|
|
|
1584 |
* @deprecated Elements are not cached any longer
|
|
|
1585 |
* @method clearCache
|
|
|
1586 |
* @static
|
|
|
1587 |
* @private
|
|
|
1588 |
*/
|
|
|
1589 |
clearCache: function() { },
|
|
|
1590 |
|
|
|
1591 |
/**
|
|
|
1592 |
* Custom event the fires when the dom is initially usable
|
|
|
1593 |
* @event DOMReadyEvent
|
|
|
1594 |
*/
|
|
|
1595 |
DOMReadyEvent: new YAHOO.util.CustomEvent("DOMReady", YAHOO, 0, 0, 1),
|
|
|
1596 |
|
|
|
1597 |
/**
|
|
|
1598 |
* hook up any deferred listeners
|
|
|
1599 |
* @method _load
|
|
|
1600 |
* @static
|
|
|
1601 |
* @private
|
|
|
1602 |
*/
|
|
|
1603 |
_load: function(e) {
|
|
|
1604 |
|
|
|
1605 |
if (!loadComplete) {
|
|
|
1606 |
loadComplete = true;
|
|
|
1607 |
var EU = YAHOO.util.Event;
|
|
|
1608 |
|
|
|
1609 |
// Just in case DOMReady did not go off for some reason
|
|
|
1610 |
EU._ready();
|
|
|
1611 |
|
|
|
1612 |
// Available elements may not have been detected before the
|
|
|
1613 |
// window load event fires. Try to find them now so that the
|
|
|
1614 |
// the user is more likely to get the onAvailable notifications
|
|
|
1615 |
// before the window load notification
|
|
|
1616 |
EU._tryPreloadAttach();
|
|
|
1617 |
|
|
|
1618 |
}
|
|
|
1619 |
},
|
|
|
1620 |
|
|
|
1621 |
/**
|
|
|
1622 |
* Fires the DOMReady event listeners the first time the document is
|
|
|
1623 |
* usable.
|
|
|
1624 |
* @method _ready
|
|
|
1625 |
* @static
|
|
|
1626 |
* @private
|
|
|
1627 |
*/
|
|
|
1628 |
_ready: function(e) {
|
|
|
1629 |
var EU = YAHOO.util.Event;
|
|
|
1630 |
if (!EU.DOMReady) {
|
|
|
1631 |
EU.DOMReady=true;
|
|
|
1632 |
|
|
|
1633 |
// Fire the content ready custom event
|
|
|
1634 |
EU.DOMReadyEvent.fire();
|
|
|
1635 |
|
|
|
1636 |
// Remove the DOMContentLoaded (FF/Opera)
|
|
|
1637 |
EU._simpleRemove(document, "DOMContentLoaded", EU._ready);
|
|
|
1638 |
}
|
|
|
1639 |
},
|
|
|
1640 |
|
|
|
1641 |
/**
|
|
|
1642 |
* Polling function that runs before the onload event fires,
|
|
|
1643 |
* attempting to attach to DOM Nodes as soon as they are
|
|
|
1644 |
* available
|
|
|
1645 |
* @method _tryPreloadAttach
|
|
|
1646 |
* @static
|
|
|
1647 |
* @private
|
|
|
1648 |
*/
|
|
|
1649 |
_tryPreloadAttach: function() {
|
|
|
1650 |
|
|
|
1651 |
if (onAvailStack.length === 0) {
|
|
|
1652 |
retryCount = 0;
|
|
|
1653 |
if (this._interval) {
|
|
|
1654 |
// clearInterval(this._interval);
|
|
|
1655 |
this._interval.cancel();
|
|
|
1656 |
this._interval = null;
|
|
|
1657 |
}
|
|
|
1658 |
return;
|
|
|
1659 |
}
|
|
|
1660 |
|
|
|
1661 |
if (this.locked) {
|
|
|
1662 |
return;
|
|
|
1663 |
}
|
|
|
1664 |
|
|
|
1665 |
if (this.isIE) {
|
|
|
1666 |
// Hold off if DOMReady has not fired and check current
|
|
|
1667 |
// readyState to protect against the IE operation aborted
|
|
|
1668 |
// issue.
|
|
|
1669 |
if (!this.DOMReady) {
|
|
|
1670 |
this.startInterval();
|
|
|
1671 |
return;
|
|
|
1672 |
}
|
|
|
1673 |
}
|
|
|
1674 |
|
|
|
1675 |
this.locked = true;
|
|
|
1676 |
|
|
|
1677 |
// this.logger.debug("tryPreloadAttach");
|
|
|
1678 |
|
|
|
1679 |
// keep trying until after the page is loaded. We need to
|
|
|
1680 |
// check the page load state prior to trying to bind the
|
|
|
1681 |
// elements so that we can be certain all elements have been
|
|
|
1682 |
// tested appropriately
|
|
|
1683 |
var tryAgain = !loadComplete;
|
|
|
1684 |
if (!tryAgain) {
|
|
|
1685 |
tryAgain = (retryCount > 0 && onAvailStack.length > 0);
|
|
|
1686 |
}
|
|
|
1687 |
|
|
|
1688 |
// onAvailable
|
|
|
1689 |
var notAvail = [];
|
|
|
1690 |
|
|
|
1691 |
var executeItem = function (el, item) {
|
|
|
1692 |
var context = el;
|
|
|
1693 |
if (item.overrideContext) {
|
|
|
1694 |
if (item.overrideContext === true) {
|
|
|
1695 |
context = item.obj;
|
|
|
1696 |
} else {
|
|
|
1697 |
context = item.overrideContext;
|
|
|
1698 |
}
|
|
|
1699 |
}
|
|
|
1700 |
item.fn.call(context, item.obj);
|
|
|
1701 |
};
|
|
|
1702 |
|
|
|
1703 |
var i, len, item, el, ready=[];
|
|
|
1704 |
|
|
|
1705 |
// onAvailable onContentReady
|
|
|
1706 |
for (i=0, len=onAvailStack.length; i<len; i=i+1) {
|
|
|
1707 |
item = onAvailStack[i];
|
|
|
1708 |
if (item) {
|
|
|
1709 |
el = this.getEl(item.id);
|
|
|
1710 |
if (el) {
|
|
|
1711 |
if (item.checkReady) {
|
|
|
1712 |
if (loadComplete || el.nextSibling || !tryAgain) {
|
|
|
1713 |
ready.push(item);
|
|
|
1714 |
onAvailStack[i] = null;
|
|
|
1715 |
}
|
|
|
1716 |
} else {
|
|
|
1717 |
executeItem(el, item);
|
|
|
1718 |
onAvailStack[i] = null;
|
|
|
1719 |
}
|
|
|
1720 |
} else {
|
|
|
1721 |
notAvail.push(item);
|
|
|
1722 |
}
|
|
|
1723 |
}
|
|
|
1724 |
}
|
|
|
1725 |
|
|
|
1726 |
// make sure onContentReady fires after onAvailable
|
|
|
1727 |
for (i=0, len=ready.length; i<len; i=i+1) {
|
|
|
1728 |
item = ready[i];
|
|
|
1729 |
executeItem(this.getEl(item.id), item);
|
|
|
1730 |
}
|
|
|
1731 |
|
|
|
1732 |
|
|
|
1733 |
retryCount--;
|
|
|
1734 |
|
|
|
1735 |
if (tryAgain) {
|
|
|
1736 |
for (i=onAvailStack.length-1; i>-1; i--) {
|
|
|
1737 |
item = onAvailStack[i];
|
|
|
1738 |
if (!item || !item.id) {
|
|
|
1739 |
onAvailStack.splice(i, 1);
|
|
|
1740 |
}
|
|
|
1741 |
}
|
|
|
1742 |
|
|
|
1743 |
this.startInterval();
|
|
|
1744 |
} else {
|
|
|
1745 |
if (this._interval) {
|
|
|
1746 |
// clearInterval(this._interval);
|
|
|
1747 |
this._interval.cancel();
|
|
|
1748 |
this._interval = null;
|
|
|
1749 |
}
|
|
|
1750 |
}
|
|
|
1751 |
|
|
|
1752 |
this.locked = false;
|
|
|
1753 |
|
|
|
1754 |
},
|
|
|
1755 |
|
|
|
1756 |
/**
|
|
|
1757 |
* Removes all listeners attached to the given element via addListener.
|
|
|
1758 |
* Optionally, the node's children can also be purged.
|
|
|
1759 |
* Optionally, you can specify a specific type of event to remove.
|
|
|
1760 |
* @method purgeElement
|
|
|
1761 |
* @param {HTMLElement} el the element to purge
|
|
|
1762 |
* @param {boolean} recurse recursively purge this element's children
|
|
|
1763 |
* as well. Use with caution.
|
|
|
1764 |
* @param {string} sType optional type of listener to purge. If
|
|
|
1765 |
* left out, all listeners will be removed
|
|
|
1766 |
* @static
|
|
|
1767 |
*/
|
|
|
1768 |
purgeElement: function(el, recurse, sType) {
|
|
|
1769 |
var oEl = (YAHOO.lang.isString(el)) ? this.getEl(el) : el;
|
|
|
1770 |
var elListeners = this.getListeners(oEl, sType), i, len;
|
|
|
1771 |
if (elListeners) {
|
|
|
1772 |
for (i=elListeners.length-1; i>-1; i--) {
|
|
|
1773 |
var l = elListeners[i];
|
|
|
1774 |
this.removeListener(oEl, l.type, l.fn);
|
|
|
1775 |
}
|
|
|
1776 |
}
|
|
|
1777 |
|
|
|
1778 |
if (recurse && oEl && oEl.childNodes) {
|
|
|
1779 |
for (i=0,len=oEl.childNodes.length; i<len ; ++i) {
|
|
|
1780 |
this.purgeElement(oEl.childNodes[i], recurse, sType);
|
|
|
1781 |
}
|
|
|
1782 |
}
|
|
|
1783 |
},
|
|
|
1784 |
|
|
|
1785 |
/**
|
|
|
1786 |
* Returns all listeners attached to the given element via addListener.
|
|
|
1787 |
* Optionally, you can specify a specific type of event to return.
|
|
|
1788 |
* @method getListeners
|
|
|
1789 |
* @param el {HTMLElement|string} the element or element id to inspect
|
|
|
1790 |
* @param sType {string} optional type of listener to return. If
|
|
|
1791 |
* left out, all listeners will be returned
|
|
|
1792 |
* @return {Object} the listener. Contains the following fields:
|
|
|
1793 |
* type: (string) the type of event
|
|
|
1794 |
* fn: (function) the callback supplied to addListener
|
|
|
1795 |
* obj: (object) the custom object supplied to addListener
|
|
|
1796 |
* adjust: (boolean|object) whether or not to adjust the default context
|
|
|
1797 |
* scope: (boolean) the derived context based on the adjust parameter
|
|
|
1798 |
* index: (int) its position in the Event util listener cache
|
|
|
1799 |
* @static
|
|
|
1800 |
*/
|
|
|
1801 |
getListeners: function(el, sType) {
|
|
|
1802 |
var results=[], searchLists;
|
|
|
1803 |
if (!sType) {
|
|
|
1804 |
searchLists = [listeners, unloadListeners];
|
|
|
1805 |
} else if (sType === "unload") {
|
|
|
1806 |
searchLists = [unloadListeners];
|
|
|
1807 |
} else {
|
|
|
1808 |
sType = this._getType(sType);
|
|
|
1809 |
searchLists = [listeners];
|
|
|
1810 |
}
|
|
|
1811 |
|
|
|
1812 |
var oEl = (YAHOO.lang.isString(el)) ? this.getEl(el) : el;
|
|
|
1813 |
|
|
|
1814 |
for (var j=0;j<searchLists.length; j=j+1) {
|
|
|
1815 |
var searchList = searchLists[j];
|
|
|
1816 |
if (searchList) {
|
|
|
1817 |
for (var i=0,len=searchList.length; i<len ; ++i) {
|
|
|
1818 |
var l = searchList[i];
|
|
|
1819 |
if ( l && l[this.EL] === oEl &&
|
|
|
1820 |
(!sType || sType === l[this.TYPE]) ) {
|
|
|
1821 |
results.push({
|
|
|
1822 |
type: l[this.TYPE],
|
|
|
1823 |
fn: l[this.FN],
|
|
|
1824 |
obj: l[this.OBJ],
|
|
|
1825 |
adjust: l[this.OVERRIDE],
|
|
|
1826 |
scope: l[this.ADJ_SCOPE],
|
|
|
1827 |
index: i
|
|
|
1828 |
});
|
|
|
1829 |
}
|
|
|
1830 |
}
|
|
|
1831 |
}
|
|
|
1832 |
}
|
|
|
1833 |
|
|
|
1834 |
return (results.length) ? results : null;
|
|
|
1835 |
},
|
|
|
1836 |
|
|
|
1837 |
/**
|
|
|
1838 |
* Removes all listeners registered by pe.event. Called
|
|
|
1839 |
* automatically during the unload event.
|
|
|
1840 |
* @method _unload
|
|
|
1841 |
* @static
|
|
|
1842 |
* @private
|
|
|
1843 |
*/
|
|
|
1844 |
_unload: function(e) {
|
|
|
1845 |
|
|
|
1846 |
var EU = YAHOO.util.Event, i, j, l, len, index,
|
|
|
1847 |
ul = unloadListeners.slice(), context;
|
|
|
1848 |
|
|
|
1849 |
// execute and clear stored unload listeners
|
|
|
1850 |
for (i=0, len=unloadListeners.length; i<len; ++i) {
|
|
|
1851 |
l = ul[i];
|
|
|
1852 |
if (l) {
|
|
|
1853 |
try {
|
|
|
1854 |
context = window;
|
|
|
1855 |
if (l[EU.ADJ_SCOPE]) {
|
|
|
1856 |
if (l[EU.ADJ_SCOPE] === true) {
|
|
|
1857 |
context = l[EU.UNLOAD_OBJ];
|
|
|
1858 |
} else {
|
|
|
1859 |
context = l[EU.ADJ_SCOPE];
|
|
|
1860 |
}
|
|
|
1861 |
}
|
|
|
1862 |
l[EU.FN].call(context, EU.getEvent(e, l[EU.EL]), l[EU.UNLOAD_OBJ] );
|
|
|
1863 |
} catch(e1) {}
|
|
|
1864 |
ul[i] = null;
|
|
|
1865 |
}
|
|
|
1866 |
}
|
|
|
1867 |
|
|
|
1868 |
l = null;
|
|
|
1869 |
context = null;
|
|
|
1870 |
unloadListeners = null;
|
|
|
1871 |
|
|
|
1872 |
// Remove listeners to handle IE memory leaks
|
|
|
1873 |
// 2.5.0 listeners are removed for all browsers again. FireFox preserves
|
|
|
1874 |
// at least some listeners between page refreshes, potentially causing
|
|
|
1875 |
// errors during page load (mouseover listeners firing before they
|
|
|
1876 |
// should if the user moves the mouse at the correct moment).
|
|
|
1877 |
if (listeners) {
|
|
|
1878 |
for (j=listeners.length-1; j>-1; j--) {
|
|
|
1879 |
l = listeners[j];
|
|
|
1880 |
if (l) {
|
|
|
1881 |
try {
|
|
|
1882 |
EU.removeListener(l[EU.EL], l[EU.TYPE], l[EU.FN], j);
|
|
|
1883 |
} catch(e2) {}
|
|
|
1884 |
}
|
|
|
1885 |
}
|
|
|
1886 |
l=null;
|
|
|
1887 |
}
|
|
|
1888 |
|
|
|
1889 |
try {
|
|
|
1890 |
EU._simpleRemove(window, "unload", EU._unload);
|
|
|
1891 |
EU._simpleRemove(window, "load", EU._load);
|
|
|
1892 |
} catch(e3) {}
|
|
|
1893 |
|
|
|
1894 |
},
|
|
|
1895 |
|
|
|
1896 |
/**
|
|
|
1897 |
* Returns scrollLeft
|
|
|
1898 |
* @method _getScrollLeft
|
|
|
1899 |
* @static
|
|
|
1900 |
* @private
|
|
|
1901 |
*/
|
|
|
1902 |
_getScrollLeft: function() {
|
|
|
1903 |
return this._getScroll()[1];
|
|
|
1904 |
},
|
|
|
1905 |
|
|
|
1906 |
/**
|
|
|
1907 |
* Returns scrollTop
|
|
|
1908 |
* @method _getScrollTop
|
|
|
1909 |
* @static
|
|
|
1910 |
* @private
|
|
|
1911 |
*/
|
|
|
1912 |
_getScrollTop: function() {
|
|
|
1913 |
return this._getScroll()[0];
|
|
|
1914 |
},
|
|
|
1915 |
|
|
|
1916 |
/**
|
|
|
1917 |
* Returns the scrollTop and scrollLeft. Used to calculate the
|
|
|
1918 |
* pageX and pageY in Internet Explorer
|
|
|
1919 |
* @method _getScroll
|
|
|
1920 |
* @static
|
|
|
1921 |
* @private
|
|
|
1922 |
*/
|
|
|
1923 |
_getScroll: function() {
|
|
|
1924 |
var dd = document.documentElement, db = document.body;
|
|
|
1925 |
if (dd && (dd.scrollTop || dd.scrollLeft)) {
|
|
|
1926 |
return [dd.scrollTop, dd.scrollLeft];
|
|
|
1927 |
} else if (db) {
|
|
|
1928 |
return [db.scrollTop, db.scrollLeft];
|
|
|
1929 |
} else {
|
|
|
1930 |
return [0, 0];
|
|
|
1931 |
}
|
|
|
1932 |
},
|
|
|
1933 |
|
|
|
1934 |
/**
|
|
|
1935 |
* Used by old versions of CustomEvent, restored for backwards
|
|
|
1936 |
* compatibility
|
|
|
1937 |
* @method regCE
|
|
|
1938 |
* @private
|
|
|
1939 |
* @static
|
|
|
1940 |
* @deprecated still here for backwards compatibility
|
|
|
1941 |
*/
|
|
|
1942 |
regCE: function() {},
|
|
|
1943 |
|
|
|
1944 |
/**
|
|
|
1945 |
* Adds a DOM event directly without the caching, cleanup, context adj, etc
|
|
|
1946 |
*
|
|
|
1947 |
* @method _simpleAdd
|
|
|
1948 |
* @param {HTMLElement} el the element to bind the handler to
|
|
|
1949 |
* @param {string} sType the type of event handler
|
|
|
1950 |
* @param {function} fn the callback to invoke
|
|
|
1951 |
* @param {boolen} capture capture or bubble phase
|
|
|
1952 |
* @static
|
|
|
1953 |
* @private
|
|
|
1954 |
*/
|
|
|
1955 |
_simpleAdd: function () {
|
|
|
1956 |
if (window.addEventListener) {
|
|
|
1957 |
return function(el, sType, fn, capture) {
|
|
|
1958 |
el.addEventListener(sType, fn, (capture));
|
|
|
1959 |
};
|
|
|
1960 |
} else if (window.attachEvent) {
|
|
|
1961 |
return function(el, sType, fn, capture) {
|
|
|
1962 |
el.attachEvent("on" + sType, fn);
|
|
|
1963 |
};
|
|
|
1964 |
} else {
|
|
|
1965 |
return function(){};
|
|
|
1966 |
}
|
|
|
1967 |
}(),
|
|
|
1968 |
|
|
|
1969 |
/**
|
|
|
1970 |
* Basic remove listener
|
|
|
1971 |
*
|
|
|
1972 |
* @method _simpleRemove
|
|
|
1973 |
* @param {HTMLElement} el the element to bind the handler to
|
|
|
1974 |
* @param {string} sType the type of event handler
|
|
|
1975 |
* @param {function} fn the callback to invoke
|
|
|
1976 |
* @param {boolen} capture capture or bubble phase
|
|
|
1977 |
* @static
|
|
|
1978 |
* @private
|
|
|
1979 |
*/
|
|
|
1980 |
_simpleRemove: function() {
|
|
|
1981 |
if (window.removeEventListener) {
|
|
|
1982 |
return function (el, sType, fn, capture) {
|
|
|
1983 |
el.removeEventListener(sType, fn, (capture));
|
|
|
1984 |
};
|
|
|
1985 |
} else if (window.detachEvent) {
|
|
|
1986 |
return function (el, sType, fn) {
|
|
|
1987 |
el.detachEvent("on" + sType, fn);
|
|
|
1988 |
};
|
|
|
1989 |
} else {
|
|
|
1990 |
return function(){};
|
|
|
1991 |
}
|
|
|
1992 |
}()
|
|
|
1993 |
};
|
|
|
1994 |
|
|
|
1995 |
}();
|
|
|
1996 |
|
|
|
1997 |
(function() {
|
|
|
1998 |
var EU = YAHOO.util.Event;
|
|
|
1999 |
|
|
|
2000 |
/**
|
|
|
2001 |
* Appends an event handler. This is an alias for <code>addListener</code>
|
|
|
2002 |
*
|
|
|
2003 |
* @method on
|
|
|
2004 |
*
|
|
|
2005 |
* @param {String|HTMLElement|Array|NodeList} el An id, an element
|
|
|
2006 |
* reference, or a collection of ids and/or elements to assign the
|
|
|
2007 |
* listener to.
|
|
|
2008 |
* @param {String} sType The type of event to append
|
|
|
2009 |
* @param {Function} fn The method the event invokes
|
|
|
2010 |
* @param {Object} obj An arbitrary object that will be
|
|
|
2011 |
* passed as a parameter to the handler
|
|
|
2012 |
* @param {Boolean|object} overrideContext If true, the obj passed in becomes
|
|
|
2013 |
* the execution context of the listener. If an
|
|
|
2014 |
* object, this object becomes the execution
|
|
|
2015 |
* context.
|
|
|
2016 |
* @return {Boolean} True if the action was successful or defered,
|
|
|
2017 |
* false if one or more of the elements
|
|
|
2018 |
* could not have the listener attached,
|
|
|
2019 |
* or if the operation throws an exception.
|
|
|
2020 |
* @static
|
|
|
2021 |
*/
|
|
|
2022 |
EU.on = EU.addListener;
|
|
|
2023 |
|
|
|
2024 |
/**
|
|
|
2025 |
* YAHOO.util.Event.onFocus is an alias for addFocusListener
|
|
|
2026 |
* @method onFocus
|
|
|
2027 |
* @see addFocusListener
|
|
|
2028 |
* @static
|
|
|
2029 |
* @deprecated use YAHOO.util.Event.on and specify "focusin" as the event type.
|
|
|
2030 |
*/
|
|
|
2031 |
EU.onFocus = EU.addFocusListener;
|
|
|
2032 |
|
|
|
2033 |
/**
|
|
|
2034 |
* YAHOO.util.Event.onBlur is an alias for addBlurListener
|
|
|
2035 |
* @method onBlur
|
|
|
2036 |
* @see addBlurListener
|
|
|
2037 |
* @static
|
|
|
2038 |
* @deprecated use YAHOO.util.Event.on and specify "focusout" as the event type.
|
|
|
2039 |
*/
|
|
|
2040 |
EU.onBlur = EU.addBlurListener;
|
|
|
2041 |
|
|
|
2042 |
/*! DOMReady: based on work by: Dean Edwards/John Resig/Matthias Miller/Diego Perini */
|
|
|
2043 |
|
|
|
2044 |
// Internet Explorer: use the readyState of a defered script.
|
|
|
2045 |
// This isolates what appears to be a safe moment to manipulate
|
|
|
2046 |
// the DOM prior to when the document's readyState suggests
|
|
|
2047 |
// it is safe to do so.
|
|
|
2048 |
if (EU.isIE) {
|
|
|
2049 |
if (self !== self.top) {
|
|
|
2050 |
document.onreadystatechange = function() {
|
|
|
2051 |
if (document.readyState == 'complete') {
|
|
|
2052 |
document.onreadystatechange = null;
|
|
|
2053 |
EU._ready();
|
|
|
2054 |
}
|
|
|
2055 |
};
|
|
|
2056 |
} else {
|
|
|
2057 |
|
|
|
2058 |
// Process onAvailable/onContentReady items when the
|
|
|
2059 |
// DOM is ready.
|
|
|
2060 |
YAHOO.util.Event.onDOMReady(
|
|
|
2061 |
YAHOO.util.Event._tryPreloadAttach,
|
|
|
2062 |
YAHOO.util.Event, true);
|
|
|
2063 |
|
|
|
2064 |
var n = document.createElement('p');
|
|
|
2065 |
|
|
|
2066 |
EU._dri = setInterval(function() {
|
|
|
2067 |
try {
|
|
|
2068 |
// throws an error if doc is not ready
|
|
|
2069 |
n.doScroll('left');
|
|
|
2070 |
clearInterval(EU._dri);
|
|
|
2071 |
EU._dri = null;
|
|
|
2072 |
EU._ready();
|
|
|
2073 |
n = null;
|
|
|
2074 |
} catch (ex) {
|
|
|
2075 |
}
|
|
|
2076 |
}, EU.POLL_INTERVAL);
|
|
|
2077 |
}
|
|
|
2078 |
|
|
|
2079 |
// The document's readyState in Safari currently will
|
|
|
2080 |
// change to loaded/complete before images are loaded.
|
|
|
2081 |
} else if (EU.webkit && EU.webkit < 525) {
|
|
|
2082 |
|
|
|
2083 |
EU._dri = setInterval(function() {
|
|
|
2084 |
var rs=document.readyState;
|
|
|
2085 |
if ("loaded" == rs || "complete" == rs) {
|
|
|
2086 |
clearInterval(EU._dri);
|
|
|
2087 |
EU._dri = null;
|
|
|
2088 |
EU._ready();
|
|
|
2089 |
}
|
|
|
2090 |
}, EU.POLL_INTERVAL);
|
|
|
2091 |
|
|
|
2092 |
// FireFox and Opera: These browsers provide a event for this
|
|
|
2093 |
// moment. The latest WebKit releases now support this event.
|
|
|
2094 |
} else {
|
|
|
2095 |
|
|
|
2096 |
EU._simpleAdd(document, "DOMContentLoaded", EU._ready);
|
|
|
2097 |
|
|
|
2098 |
}
|
|
|
2099 |
/////////////////////////////////////////////////////////////
|
|
|
2100 |
|
|
|
2101 |
|
|
|
2102 |
EU._simpleAdd(window, "load", EU._load);
|
|
|
2103 |
EU._simpleAdd(window, "unload", EU._unload);
|
|
|
2104 |
EU._tryPreloadAttach();
|
|
|
2105 |
})();
|
|
|
2106 |
|
|
|
2107 |
}
|
|
|
2108 |
/**
|
|
|
2109 |
* EventProvider is designed to be used with YAHOO.augment to wrap
|
|
|
2110 |
* CustomEvents in an interface that allows events to be subscribed to
|
|
|
2111 |
* and fired by name. This makes it possible for implementing code to
|
|
|
2112 |
* subscribe to an event that either has not been created yet, or will
|
|
|
2113 |
* not be created at all.
|
|
|
2114 |
*
|
|
|
2115 |
* @Class EventProvider
|
|
|
2116 |
*/
|
|
|
2117 |
YAHOO.util.EventProvider = function() { };
|
|
|
2118 |
|
|
|
2119 |
YAHOO.util.EventProvider.prototype = {
|
|
|
2120 |
|
|
|
2121 |
/**
|
|
|
2122 |
* Private storage of custom events
|
|
|
2123 |
* @property __yui_events
|
|
|
2124 |
* @type Object[]
|
|
|
2125 |
* @private
|
|
|
2126 |
*/
|
|
|
2127 |
__yui_events: null,
|
|
|
2128 |
|
|
|
2129 |
/**
|
|
|
2130 |
* Private storage of custom event subscribers
|
|
|
2131 |
* @property __yui_subscribers
|
|
|
2132 |
* @type Object[]
|
|
|
2133 |
* @private
|
|
|
2134 |
*/
|
|
|
2135 |
__yui_subscribers: null,
|
|
|
2136 |
|
|
|
2137 |
/**
|
|
|
2138 |
* Subscribe to a CustomEvent by event type
|
|
|
2139 |
*
|
|
|
2140 |
* @method subscribe
|
|
|
2141 |
* @param p_type {string} the type, or name of the event
|
|
|
2142 |
* @param p_fn {function} the function to exectute when the event fires
|
|
|
2143 |
* @param p_obj {Object} An object to be passed along when the event
|
|
|
2144 |
* fires
|
|
|
2145 |
* @param overrideContext {boolean} If true, the obj passed in becomes the
|
|
|
2146 |
* execution scope of the listener
|
|
|
2147 |
*/
|
|
|
2148 |
subscribe: function(p_type, p_fn, p_obj, overrideContext) {
|
|
|
2149 |
|
|
|
2150 |
this.__yui_events = this.__yui_events || {};
|
|
|
2151 |
var ce = this.__yui_events[p_type];
|
|
|
2152 |
|
|
|
2153 |
if (ce) {
|
|
|
2154 |
ce.subscribe(p_fn, p_obj, overrideContext);
|
|
|
2155 |
} else {
|
|
|
2156 |
this.__yui_subscribers = this.__yui_subscribers || {};
|
|
|
2157 |
var subs = this.__yui_subscribers;
|
|
|
2158 |
if (!subs[p_type]) {
|
|
|
2159 |
subs[p_type] = [];
|
|
|
2160 |
}
|
|
|
2161 |
subs[p_type].push(
|
|
|
2162 |
{ fn: p_fn, obj: p_obj, overrideContext: overrideContext } );
|
|
|
2163 |
}
|
|
|
2164 |
},
|
|
|
2165 |
|
|
|
2166 |
/**
|
|
|
2167 |
* Unsubscribes one or more listeners the from the specified event
|
|
|
2168 |
* @method unsubscribe
|
|
|
2169 |
* @param p_type {string} The type, or name of the event. If the type
|
|
|
2170 |
* is not specified, it will attempt to remove
|
|
|
2171 |
* the listener from all hosted events.
|
|
|
2172 |
* @param p_fn {Function} The subscribed function to unsubscribe, if not
|
|
|
2173 |
* supplied, all subscribers will be removed.
|
|
|
2174 |
* @param p_obj {Object} The custom object passed to subscribe. This is
|
|
|
2175 |
* optional, but if supplied will be used to
|
|
|
2176 |
* disambiguate multiple listeners that are the same
|
|
|
2177 |
* (e.g., you subscribe many object using a function
|
|
|
2178 |
* that lives on the prototype)
|
|
|
2179 |
* @return {boolean} true if the subscriber was found and detached.
|
|
|
2180 |
*/
|
|
|
2181 |
unsubscribe: function(p_type, p_fn, p_obj) {
|
|
|
2182 |
this.__yui_events = this.__yui_events || {};
|
|
|
2183 |
var evts = this.__yui_events;
|
|
|
2184 |
if (p_type) {
|
|
|
2185 |
var ce = evts[p_type];
|
|
|
2186 |
if (ce) {
|
|
|
2187 |
return ce.unsubscribe(p_fn, p_obj);
|
|
|
2188 |
}
|
|
|
2189 |
} else {
|
|
|
2190 |
var ret = true;
|
|
|
2191 |
for (var i in evts) {
|
|
|
2192 |
if (YAHOO.lang.hasOwnProperty(evts, i)) {
|
|
|
2193 |
ret = ret && evts[i].unsubscribe(p_fn, p_obj);
|
|
|
2194 |
}
|
|
|
2195 |
}
|
|
|
2196 |
return ret;
|
|
|
2197 |
}
|
|
|
2198 |
|
|
|
2199 |
return false;
|
|
|
2200 |
},
|
|
|
2201 |
|
|
|
2202 |
/**
|
|
|
2203 |
* Removes all listeners from the specified event. If the event type
|
|
|
2204 |
* is not specified, all listeners from all hosted custom events will
|
|
|
2205 |
* be removed.
|
|
|
2206 |
* @method unsubscribeAll
|
|
|
2207 |
* @param p_type {string} The type, or name of the event
|
|
|
2208 |
*/
|
|
|
2209 |
unsubscribeAll: function(p_type) {
|
|
|
2210 |
return this.unsubscribe(p_type);
|
|
|
2211 |
},
|
|
|
2212 |
|
|
|
2213 |
/**
|
|
|
2214 |
* Creates a new custom event of the specified type. If a custom event
|
|
|
2215 |
* by that name already exists, it will not be re-created. In either
|
|
|
2216 |
* case the custom event is returned.
|
|
|
2217 |
*
|
|
|
2218 |
* @method createEvent
|
|
|
2219 |
*
|
|
|
2220 |
* @param p_type {string} the type, or name of the event
|
|
|
2221 |
* @param p_config {object} optional config params. Valid properties are:
|
|
|
2222 |
*
|
|
|
2223 |
* <ul>
|
|
|
2224 |
* <li>
|
|
|
2225 |
* scope: defines the default execution scope. If not defined
|
|
|
2226 |
* the default scope will be this instance.
|
|
|
2227 |
* </li>
|
|
|
2228 |
* <li>
|
|
|
2229 |
* silent: if true, the custom event will not generate log messages.
|
|
|
2230 |
* This is false by default.
|
|
|
2231 |
* </li>
|
|
|
2232 |
* <li>
|
|
|
2233 |
* fireOnce: if true, the custom event will only notify subscribers
|
|
|
2234 |
* once regardless of the number of times the event is fired. In
|
|
|
2235 |
* addition, new subscribers will be executed immediately if the
|
|
|
2236 |
* event has already fired.
|
|
|
2237 |
* This is false by default.
|
|
|
2238 |
* </li>
|
|
|
2239 |
* <li>
|
|
|
2240 |
* onSubscribeCallback: specifies a callback to execute when the
|
|
|
2241 |
* event has a new subscriber. This will fire immediately for
|
|
|
2242 |
* each queued subscriber if any exist prior to the creation of
|
|
|
2243 |
* the event.
|
|
|
2244 |
* </li>
|
|
|
2245 |
* </ul>
|
|
|
2246 |
*
|
|
|
2247 |
* @return {CustomEvent} the custom event
|
|
|
2248 |
*
|
|
|
2249 |
*/
|
|
|
2250 |
createEvent: function(p_type, p_config) {
|
|
|
2251 |
|
|
|
2252 |
this.__yui_events = this.__yui_events || {};
|
|
|
2253 |
var opts = p_config || {},
|
|
|
2254 |
events = this.__yui_events, ce;
|
|
|
2255 |
|
|
|
2256 |
if (events[p_type]) {
|
|
|
2257 |
YAHOO.log("EventProvider createEvent skipped: '"+p_type+"' already exists");
|
|
|
2258 |
} else {
|
|
|
2259 |
|
|
|
2260 |
ce = new YAHOO.util.CustomEvent(p_type, opts.scope || this, opts.silent,
|
|
|
2261 |
YAHOO.util.CustomEvent.FLAT, opts.fireOnce);
|
|
|
2262 |
|
|
|
2263 |
events[p_type] = ce;
|
|
|
2264 |
|
|
|
2265 |
if (opts.onSubscribeCallback) {
|
|
|
2266 |
ce.subscribeEvent.subscribe(opts.onSubscribeCallback);
|
|
|
2267 |
}
|
|
|
2268 |
|
|
|
2269 |
this.__yui_subscribers = this.__yui_subscribers || {};
|
|
|
2270 |
var qs = this.__yui_subscribers[p_type];
|
|
|
2271 |
|
|
|
2272 |
if (qs) {
|
|
|
2273 |
for (var i=0; i<qs.length; ++i) {
|
|
|
2274 |
ce.subscribe(qs[i].fn, qs[i].obj, qs[i].overrideContext);
|
|
|
2275 |
}
|
|
|
2276 |
}
|
|
|
2277 |
}
|
|
|
2278 |
|
|
|
2279 |
return events[p_type];
|
|
|
2280 |
},
|
|
|
2281 |
|
|
|
2282 |
|
|
|
2283 |
/**
|
|
|
2284 |
* Fire a custom event by name. The callback functions will be executed
|
|
|
2285 |
* from the scope specified when the event was created, and with the
|
|
|
2286 |
* following parameters:
|
|
|
2287 |
* <ul>
|
|
|
2288 |
* <li>The first argument fire() was executed with</li>
|
|
|
2289 |
* <li>The custom object (if any) that was passed into the subscribe()
|
|
|
2290 |
* method</li>
|
|
|
2291 |
* </ul>
|
|
|
2292 |
* @method fireEvent
|
|
|
2293 |
* @param p_type {string} the type, or name of the event
|
|
|
2294 |
* @param arguments {Object*} an arbitrary set of parameters to pass to
|
|
|
2295 |
* the handler.
|
|
|
2296 |
* @return {boolean} the return value from CustomEvent.fire
|
|
|
2297 |
*
|
|
|
2298 |
*/
|
|
|
2299 |
fireEvent: function(p_type) {
|
|
|
2300 |
|
|
|
2301 |
this.__yui_events = this.__yui_events || {};
|
|
|
2302 |
var ce = this.__yui_events[p_type];
|
|
|
2303 |
|
|
|
2304 |
if (!ce) {
|
|
|
2305 |
YAHOO.log(p_type + "event fired before it was created.");
|
|
|
2306 |
return null;
|
|
|
2307 |
}
|
|
|
2308 |
|
|
|
2309 |
var args = [];
|
|
|
2310 |
for (var i=1; i<arguments.length; ++i) {
|
|
|
2311 |
args.push(arguments[i]);
|
|
|
2312 |
}
|
|
|
2313 |
return ce.fire.apply(ce, args);
|
|
|
2314 |
},
|
|
|
2315 |
|
|
|
2316 |
/**
|
|
|
2317 |
* Returns true if the custom event of the provided type has been created
|
|
|
2318 |
* with createEvent.
|
|
|
2319 |
* @method hasEvent
|
|
|
2320 |
* @param type {string} the type, or name of the event
|
|
|
2321 |
*/
|
|
|
2322 |
hasEvent: function(type) {
|
|
|
2323 |
if (this.__yui_events) {
|
|
|
2324 |
if (this.__yui_events[type]) {
|
|
|
2325 |
return true;
|
|
|
2326 |
}
|
|
|
2327 |
}
|
|
|
2328 |
return false;
|
|
|
2329 |
}
|
|
|
2330 |
|
|
|
2331 |
};
|
|
|
2332 |
|
|
|
2333 |
(function() {
|
|
|
2334 |
|
|
|
2335 |
var Event = YAHOO.util.Event, Lang = YAHOO.lang;
|
|
|
2336 |
|
|
|
2337 |
/**
|
|
|
2338 |
* KeyListener is a utility that provides an easy interface for listening for
|
|
|
2339 |
* keydown/keyup events fired against DOM elements.
|
|
|
2340 |
* @namespace YAHOO.util
|
|
|
2341 |
* @class KeyListener
|
|
|
2342 |
* @constructor
|
|
|
2343 |
* @param {HTMLElement} attachTo The element or element ID to which the key
|
|
|
2344 |
* event should be attached
|
|
|
2345 |
* @param {String} attachTo The element or element ID to which the key
|
|
|
2346 |
* event should be attached
|
|
|
2347 |
* @param {Object} keyData The object literal representing the key(s)
|
|
|
2348 |
* to detect. Possible attributes are
|
|
|
2349 |
* shift(boolean), alt(boolean), ctrl(boolean)
|
|
|
2350 |
* and keys(either an int or an array of ints
|
|
|
2351 |
* representing keycodes).
|
|
|
2352 |
* @param {Function} handler The CustomEvent handler to fire when the
|
|
|
2353 |
* key event is detected
|
|
|
2354 |
* @param {Object} handler An object literal representing the handler.
|
|
|
2355 |
* @param {String} event Optional. The event (keydown or keyup) to
|
|
|
2356 |
* listen for. Defaults automatically to keydown.
|
|
|
2357 |
*
|
|
|
2358 |
* @knownissue the "keypress" event is completely broken in Safari 2.x and below.
|
|
|
2359 |
* the workaround is use "keydown" for key listening. However, if
|
|
|
2360 |
* it is desired to prevent the default behavior of the keystroke,
|
|
|
2361 |
* that can only be done on the keypress event. This makes key
|
|
|
2362 |
* handling quite ugly.
|
|
|
2363 |
* @knownissue keydown is also broken in Safari 2.x and below for the ESC key.
|
|
|
2364 |
* There currently is no workaround other than choosing another
|
|
|
2365 |
* key to listen for.
|
|
|
2366 |
*/
|
|
|
2367 |
YAHOO.util.KeyListener = function(attachTo, keyData, handler, event) {
|
|
|
2368 |
if (!attachTo) {
|
|
|
2369 |
YAHOO.log("No attachTo element specified", "error");
|
|
|
2370 |
} else if (!keyData) {
|
|
|
2371 |
YAHOO.log("No keyData specified", "error");
|
|
|
2372 |
} else if (!handler) {
|
|
|
2373 |
YAHOO.log("No handler specified", "error");
|
|
|
2374 |
}
|
|
|
2375 |
|
|
|
2376 |
if (!event) {
|
|
|
2377 |
event = YAHOO.util.KeyListener.KEYDOWN;
|
|
|
2378 |
}
|
|
|
2379 |
|
|
|
2380 |
/**
|
|
|
2381 |
* The CustomEvent fired internally when a key is pressed
|
|
|
2382 |
* @event keyEvent
|
|
|
2383 |
* @private
|
|
|
2384 |
* @param {Object} keyData The object literal representing the key(s) to
|
|
|
2385 |
* detect. Possible attributes are shift(boolean),
|
|
|
2386 |
* alt(boolean), ctrl(boolean) and keys(either an
|
|
|
2387 |
* int or an array of ints representing keycodes).
|
|
|
2388 |
*/
|
|
|
2389 |
var keyEvent = new YAHOO.util.CustomEvent("keyPressed");
|
|
|
2390 |
|
|
|
2391 |
/**
|
|
|
2392 |
* The CustomEvent fired when the KeyListener is enabled via the enable()
|
|
|
2393 |
* function
|
|
|
2394 |
* @event enabledEvent
|
|
|
2395 |
* @param {Object} keyData The object literal representing the key(s) to
|
|
|
2396 |
* detect. Possible attributes are shift(boolean),
|
|
|
2397 |
* alt(boolean), ctrl(boolean) and keys(either an
|
|
|
2398 |
* int or an array of ints representing keycodes).
|
|
|
2399 |
*/
|
|
|
2400 |
this.enabledEvent = new YAHOO.util.CustomEvent("enabled");
|
|
|
2401 |
|
|
|
2402 |
/**
|
|
|
2403 |
* The CustomEvent fired when the KeyListener is disabled via the
|
|
|
2404 |
* disable() function
|
|
|
2405 |
* @event disabledEvent
|
|
|
2406 |
* @param {Object} keyData The object literal representing the key(s) to
|
|
|
2407 |
* detect. Possible attributes are shift(boolean),
|
|
|
2408 |
* alt(boolean), ctrl(boolean) and keys(either an
|
|
|
2409 |
* int or an array of ints representing keycodes).
|
|
|
2410 |
*/
|
|
|
2411 |
this.disabledEvent = new YAHOO.util.CustomEvent("disabled");
|
|
|
2412 |
|
|
|
2413 |
if (Lang.isString(attachTo)) {
|
|
|
2414 |
attachTo = document.getElementById(attachTo); // No Dom util
|
|
|
2415 |
}
|
|
|
2416 |
|
|
|
2417 |
if (Lang.isFunction(handler)) {
|
|
|
2418 |
keyEvent.subscribe(handler);
|
|
|
2419 |
} else {
|
|
|
2420 |
keyEvent.subscribe(handler.fn, handler.scope, handler.correctScope);
|
|
|
2421 |
}
|
|
|
2422 |
|
|
|
2423 |
/**
|
|
|
2424 |
* Handles the key event when a key is pressed.
|
|
|
2425 |
* @method handleKeyPress
|
|
|
2426 |
* @param {DOMEvent} e The keypress DOM event
|
|
|
2427 |
* @param {Object} obj The DOM event scope object
|
|
|
2428 |
* @private
|
|
|
2429 |
*/
|
|
|
2430 |
function handleKeyPress(e, obj) {
|
|
|
2431 |
if (! keyData.shift) {
|
|
|
2432 |
keyData.shift = false;
|
|
|
2433 |
}
|
|
|
2434 |
if (! keyData.alt) {
|
|
|
2435 |
keyData.alt = false;
|
|
|
2436 |
}
|
|
|
2437 |
if (! keyData.ctrl) {
|
|
|
2438 |
keyData.ctrl = false;
|
|
|
2439 |
}
|
|
|
2440 |
|
|
|
2441 |
// check held down modifying keys first
|
|
|
2442 |
if (e.shiftKey == keyData.shift &&
|
|
|
2443 |
e.altKey == keyData.alt &&
|
|
|
2444 |
e.ctrlKey == keyData.ctrl) { // if we pass this, all modifiers match
|
|
|
2445 |
|
|
|
2446 |
var dataItem, keys = keyData.keys, key;
|
|
|
2447 |
|
|
|
2448 |
if (YAHOO.lang.isArray(keys)) {
|
|
|
2449 |
for (var i=0;i<keys.length;i++) {
|
|
|
2450 |
dataItem = keys[i];
|
|
|
2451 |
key = Event.getCharCode(e);
|
|
|
2452 |
|
|
|
2453 |
if (dataItem == key) {
|
|
|
2454 |
keyEvent.fire(key, e);
|
|
|
2455 |
break;
|
|
|
2456 |
}
|
|
|
2457 |
}
|
|
|
2458 |
} else {
|
|
|
2459 |
key = Event.getCharCode(e);
|
|
|
2460 |
if (keys == key ) {
|
|
|
2461 |
keyEvent.fire(key, e);
|
|
|
2462 |
}
|
|
|
2463 |
}
|
|
|
2464 |
}
|
|
|
2465 |
}
|
|
|
2466 |
|
|
|
2467 |
/**
|
|
|
2468 |
* Enables the KeyListener by attaching the DOM event listeners to the
|
|
|
2469 |
* target DOM element
|
|
|
2470 |
* @method enable
|
|
|
2471 |
*/
|
|
|
2472 |
this.enable = function() {
|
|
|
2473 |
if (! this.enabled) {
|
|
|
2474 |
Event.on(attachTo, event, handleKeyPress);
|
|
|
2475 |
this.enabledEvent.fire(keyData);
|
|
|
2476 |
}
|
|
|
2477 |
/**
|
|
|
2478 |
* Boolean indicating the enabled/disabled state of the Tooltip
|
|
|
2479 |
* @property enabled
|
|
|
2480 |
* @type Boolean
|
|
|
2481 |
*/
|
|
|
2482 |
this.enabled = true;
|
|
|
2483 |
};
|
|
|
2484 |
|
|
|
2485 |
/**
|
|
|
2486 |
* Disables the KeyListener by removing the DOM event listeners from the
|
|
|
2487 |
* target DOM element
|
|
|
2488 |
* @method disable
|
|
|
2489 |
*/
|
|
|
2490 |
this.disable = function() {
|
|
|
2491 |
if (this.enabled) {
|
|
|
2492 |
Event.removeListener(attachTo, event, handleKeyPress);
|
|
|
2493 |
this.disabledEvent.fire(keyData);
|
|
|
2494 |
}
|
|
|
2495 |
this.enabled = false;
|
|
|
2496 |
};
|
|
|
2497 |
|
|
|
2498 |
/**
|
|
|
2499 |
* Returns a String representation of the object.
|
|
|
2500 |
* @method toString
|
|
|
2501 |
* @return {String} The string representation of the KeyListener
|
|
|
2502 |
*/
|
|
|
2503 |
this.toString = function() {
|
|
|
2504 |
return "KeyListener [" + keyData.keys + "] " + attachTo.tagName +
|
|
|
2505 |
(attachTo.id ? "[" + attachTo.id + "]" : "");
|
|
|
2506 |
};
|
|
|
2507 |
|
|
|
2508 |
};
|
|
|
2509 |
|
|
|
2510 |
var KeyListener = YAHOO.util.KeyListener;
|
|
|
2511 |
|
|
|
2512 |
/**
|
|
|
2513 |
* Constant representing the DOM "keydown" event.
|
|
|
2514 |
* @property YAHOO.util.KeyListener.KEYDOWN
|
|
|
2515 |
* @static
|
|
|
2516 |
* @final
|
|
|
2517 |
* @type String
|
|
|
2518 |
*/
|
|
|
2519 |
KeyListener.KEYDOWN = "keydown";
|
|
|
2520 |
|
|
|
2521 |
/**
|
|
|
2522 |
* Constant representing the DOM "keyup" event.
|
|
|
2523 |
* @property YAHOO.util.KeyListener.KEYUP
|
|
|
2524 |
* @static
|
|
|
2525 |
* @final
|
|
|
2526 |
* @type String
|
|
|
2527 |
*/
|
|
|
2528 |
KeyListener.KEYUP = "keyup";
|
|
|
2529 |
|
|
|
2530 |
/**
|
|
|
2531 |
* keycode constants for a subset of the special keys
|
|
|
2532 |
* @property KEY
|
|
|
2533 |
* @static
|
|
|
2534 |
* @final
|
|
|
2535 |
*/
|
|
|
2536 |
KeyListener.KEY = {
|
|
|
2537 |
ALT : 18,
|
|
|
2538 |
BACK_SPACE : 8,
|
|
|
2539 |
CAPS_LOCK : 20,
|
|
|
2540 |
CONTROL : 17,
|
|
|
2541 |
DELETE : 46,
|
|
|
2542 |
DOWN : 40,
|
|
|
2543 |
END : 35,
|
|
|
2544 |
ENTER : 13,
|
|
|
2545 |
ESCAPE : 27,
|
|
|
2546 |
HOME : 36,
|
|
|
2547 |
LEFT : 37,
|
|
|
2548 |
META : 224,
|
|
|
2549 |
NUM_LOCK : 144,
|
|
|
2550 |
PAGE_DOWN : 34,
|
|
|
2551 |
PAGE_UP : 33,
|
|
|
2552 |
PAUSE : 19,
|
|
|
2553 |
PRINTSCREEN : 44,
|
|
|
2554 |
RIGHT : 39,
|
|
|
2555 |
SCROLL_LOCK : 145,
|
|
|
2556 |
SHIFT : 16,
|
|
|
2557 |
SPACE : 32,
|
|
|
2558 |
TAB : 9,
|
|
|
2559 |
UP : 38
|
|
|
2560 |
};
|
|
|
2561 |
|
|
|
2562 |
})();
|
|
|
2563 |
YAHOO.register("event", YAHOO.util.Event, {version: "2.9.0", build: "2800"});
|
|
|
2564 |
|
|
|
2565 |
YAHOO.util.Event.generateId = function(el) {
|
|
|
2566 |
if (!el.id) {
|
|
|
2567 |
el.id = Y.guid();
|
|
|
2568 |
}
|
|
|
2569 |
return el.id;
|
|
|
2570 |
};
|
|
|
2571 |
YAHOO.util.Event._load();
|
|
|
2572 |
}, '2.9.0' ,{"requires": ["yui2-yahoo"]});
|