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601
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doc
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/*
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Copyright (c) 2007, Yahoo! Inc. All rights reserved.
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Code licensed under the BSD License:
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http://developer.yahoo.net/yui/license.txt
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version: 2.4.1
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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} oScope 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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* @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, oScope, silent, signature) {
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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 scope the the event will fire from by default. Defaults to the window
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* obj
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* @property scope
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* @type object
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*/
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this.scope = oScope || window;
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/**
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* By default all custom events are logged in the debug build, set silent
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* to true to disable debug outpu 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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* 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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}
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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 {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} override If true, the obj passed in becomes
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* the execution scope of the listener.
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* if an object, that object becomes the
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* the execution scope.
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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} override If true, the obj passed in becomes
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* the execution scope of the listener.
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* if an object, that object becomes the
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* the execution scope.
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*/
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subscribe: function(fn, obj, override) {
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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, override);
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}
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this.subscribers.push( new YAHOO.util.Subscriber(fn, obj, override) );
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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 scope 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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var len=this.subscribers.length;
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if (!len && this.silent) {
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return true;
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}
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var args=[], ret=true, i, rebuild=false;
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for (i=0; i<arguments.length; ++i) {
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args.push(arguments[i]);
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}
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if (!this.silent) {
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}
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for (i=0; i<len; ++i) {
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var s = this.subscribers[i];
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if (!s) {
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rebuild=true;
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} else {
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if (!this.silent) {
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}
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var scope = s.getScope(this.scope);
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if (this.signature == YAHOO.util.CustomEvent.FLAT) {
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var param = null;
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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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}
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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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}
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}
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if (false === ret) {
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if (!this.silent) {
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}
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//break;
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return false;
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}
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}
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}
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if (rebuild) {
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var newlist=[],subs=this.subscribers;
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for (i=0,len=subs.length; i<len; i=i+1) {
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newlist.push(subs[i]);
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}
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this.subscribers=newlist;
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}
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return true;
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},
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/**
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* Removes all listeners
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* @method unsubscribeAll
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* @return {int} The number of listeners unsubscribed
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*/
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unsubscribeAll: function() {
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for (var i=0, len=this.subscribers.length; i<len; ++i) {
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this._delete(len - 1 - i);
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}
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this.subscribers=[];
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return i;
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},
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/**
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* @method _delete
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* @private
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*/
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_delete: function(index) {
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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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this.subscribers[index]=null;
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},
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/**
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* @method toString
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| 312 |
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*/
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toString: function() {
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| 314 |
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return "CustomEvent: " + "'" + this.type + "', " +
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"scope: " + this.scope;
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| 316 |
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}
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| 318 |
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};
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/////////////////////////////////////////////////////////////////////
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| 322 |
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/**
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| 323 |
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* Stores the subscriber information to be used when the event fires.
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| 324 |
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* @param {Function} fn The function to execute
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| 325 |
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* @param {Object} obj An object to be passed along when the event fires
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| 326 |
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* @param {boolean} override If true, the obj passed in becomes the execution
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| 327 |
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* scope of the listener
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| 328 |
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* @class Subscriber
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| 329 |
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* @constructor
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| 330 |
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*/
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| 331 |
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YAHOO.util.Subscriber = function(fn, obj, override) {
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| 332 |
|
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| 333 |
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/**
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| 334 |
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* The callback that will be execute when the event fires
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| 335 |
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* @property fn
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| 336 |
|
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* @type function
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| 337 |
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*/
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| 338 |
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this.fn = fn;
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| 339 |
|
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|
| 340 |
|
|
/**
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| 341 |
|
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* An optional custom object that will passed to the callback when
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| 342 |
|
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* the event fires
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| 343 |
|
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* @property obj
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| 344 |
|
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* @type object
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| 345 |
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*/
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| 346 |
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this.obj = YAHOO.lang.isUndefined(obj) ? null : obj;
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| 347 |
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| 348 |
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/**
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| 349 |
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* The default execution scope for the event listener is defined when the
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| 350 |
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* event is created (usually the object which contains the event).
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| 351 |
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* By setting override to true, the execution scope becomes the custom
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| 352 |
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* object passed in by the subscriber. If override is an object, that
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| 353 |
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* object becomes the scope.
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| 354 |
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* @property override
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| 355 |
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* @type boolean|object
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| 356 |
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*/
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| 357 |
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this.override = override;
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| 358 |
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| 359 |
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};
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| 360 |
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| 361 |
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/**
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| 362 |
|
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* Returns the execution scope for this listener. If override was set to true
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| 363 |
|
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* the custom obj will be the scope. If override is an object, that is the
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| 364 |
|
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* scope, otherwise the default scope will be used.
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| 365 |
|
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* @method getScope
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| 366 |
|
|
* @param {Object} defaultScope the scope to use if this listener does not
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| 367 |
|
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* override it.
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| 368 |
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*/
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| 369 |
|
|
YAHOO.util.Subscriber.prototype.getScope = function(defaultScope) {
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| 370 |
|
|
if (this.override) {
|
| 371 |
|
|
if (this.override === true) {
|
| 372 |
|
|
return this.obj;
|
| 373 |
|
|
} else {
|
| 374 |
|
|
return this.override;
|
| 375 |
|
|
}
|
| 376 |
|
|
}
|
| 377 |
|
|
return defaultScope;
|
| 378 |
|
|
};
|
| 379 |
|
|
|
| 380 |
|
|
/**
|
| 381 |
|
|
* Returns true if the fn and obj match this objects properties.
|
| 382 |
|
|
* Used by the unsubscribe method to match the right subscriber.
|
| 383 |
|
|
*
|
| 384 |
|
|
* @method contains
|
| 385 |
|
|
* @param {Function} fn the function to execute
|
| 386 |
|
|
* @param {Object} obj an object to be passed along when the event fires
|
| 387 |
|
|
* @return {boolean} true if the supplied arguments match this
|
| 388 |
|
|
* subscriber's signature.
|
| 389 |
|
|
*/
|
| 390 |
|
|
YAHOO.util.Subscriber.prototype.contains = function(fn, obj) {
|
| 391 |
|
|
if (obj) {
|
| 392 |
|
|
return (this.fn == fn && this.obj == obj);
|
| 393 |
|
|
} else {
|
| 394 |
|
|
return (this.fn == fn);
|
| 395 |
|
|
}
|
| 396 |
|
|
};
|
| 397 |
|
|
|
| 398 |
|
|
/**
|
| 399 |
|
|
* @method toString
|
| 400 |
|
|
*/
|
| 401 |
|
|
YAHOO.util.Subscriber.prototype.toString = function() {
|
| 402 |
|
|
return "Subscriber { obj: " + this.obj +
|
| 403 |
|
|
", override: " + (this.override || "no") + " }";
|
| 404 |
|
|
};
|
| 405 |
|
|
|
| 406 |
|
|
/**
|
| 407 |
|
|
* The Event Utility provides utilities for managing DOM Events and tools
|
| 408 |
|
|
* for building event systems
|
| 409 |
|
|
*
|
| 410 |
|
|
* @module event
|
| 411 |
|
|
* @title Event Utility
|
| 412 |
|
|
* @namespace YAHOO.util
|
| 413 |
|
|
* @requires yahoo
|
| 414 |
|
|
*/
|
| 415 |
|
|
|
| 416 |
|
|
// The first instance of Event will win if it is loaded more than once.
|
| 417 |
|
|
// @TODO this needs to be changed so that only the state data that needs to
|
| 418 |
|
|
// be preserved is kept, while methods are overwritten/added as needed.
|
| 419 |
|
|
// This means that the module pattern can't be used.
|
| 420 |
|
|
if (!YAHOO.util.Event) {
|
| 421 |
|
|
|
| 422 |
|
|
/**
|
| 423 |
|
|
* The event utility provides functions to add and remove event listeners,
|
| 424 |
|
|
* event cleansing. It also tries to automatically remove listeners it
|
| 425 |
|
|
* registers during the unload event.
|
| 426 |
|
|
*
|
| 427 |
|
|
* @class Event
|
| 428 |
|
|
* @static
|
| 429 |
|
|
*/
|
| 430 |
|
|
YAHOO.util.Event = function() {
|
| 431 |
|
|
|
| 432 |
|
|
/**
|
| 433 |
|
|
* True after the onload event has fired
|
| 434 |
|
|
* @property loadComplete
|
| 435 |
|
|
* @type boolean
|
| 436 |
|
|
* @static
|
| 437 |
|
|
* @private
|
| 438 |
|
|
*/
|
| 439 |
|
|
var loadComplete = false;
|
| 440 |
|
|
|
| 441 |
|
|
/**
|
| 442 |
|
|
* Cache of wrapped listeners
|
| 443 |
|
|
* @property listeners
|
| 444 |
|
|
* @type array
|
| 445 |
|
|
* @static
|
| 446 |
|
|
* @private
|
| 447 |
|
|
*/
|
| 448 |
|
|
var listeners = [];
|
| 449 |
|
|
|
| 450 |
|
|
/**
|
| 451 |
|
|
* User-defined unload function that will be fired before all events
|
| 452 |
|
|
* are detached
|
| 453 |
|
|
* @property unloadListeners
|
| 454 |
|
|
* @type array
|
| 455 |
|
|
* @static
|
| 456 |
|
|
* @private
|
| 457 |
|
|
*/
|
| 458 |
|
|
var unloadListeners = [];
|
| 459 |
|
|
|
| 460 |
|
|
/**
|
| 461 |
|
|
* Cache of DOM0 event handlers to work around issues with DOM2 events
|
| 462 |
|
|
* in Safari
|
| 463 |
|
|
* @property legacyEvents
|
| 464 |
|
|
* @static
|
| 465 |
|
|
* @private
|
| 466 |
|
|
*/
|
| 467 |
|
|
var legacyEvents = [];
|
| 468 |
|
|
|
| 469 |
|
|
/**
|
| 470 |
|
|
* Listener stack for DOM0 events
|
| 471 |
|
|
* @property legacyHandlers
|
| 472 |
|
|
* @static
|
| 473 |
|
|
* @private
|
| 474 |
|
|
*/
|
| 475 |
|
|
var legacyHandlers = [];
|
| 476 |
|
|
|
| 477 |
|
|
/**
|
| 478 |
|
|
* The number of times to poll after window.onload. This number is
|
| 479 |
|
|
* increased if additional late-bound handlers are requested after
|
| 480 |
|
|
* the page load.
|
| 481 |
|
|
* @property retryCount
|
| 482 |
|
|
* @static
|
| 483 |
|
|
* @private
|
| 484 |
|
|
*/
|
| 485 |
|
|
var retryCount = 0;
|
| 486 |
|
|
|
| 487 |
|
|
/**
|
| 488 |
|
|
* onAvailable listeners
|
| 489 |
|
|
* @property onAvailStack
|
| 490 |
|
|
* @static
|
| 491 |
|
|
* @private
|
| 492 |
|
|
*/
|
| 493 |
|
|
var onAvailStack = [];
|
| 494 |
|
|
|
| 495 |
|
|
/**
|
| 496 |
|
|
* Lookup table for legacy events
|
| 497 |
|
|
* @property legacyMap
|
| 498 |
|
|
* @static
|
| 499 |
|
|
* @private
|
| 500 |
|
|
*/
|
| 501 |
|
|
var legacyMap = [];
|
| 502 |
|
|
|
| 503 |
|
|
/**
|
| 504 |
|
|
* Counter for auto id generation
|
| 505 |
|
|
* @property counter
|
| 506 |
|
|
* @static
|
| 507 |
|
|
* @private
|
| 508 |
|
|
*/
|
| 509 |
|
|
var counter = 0;
|
| 510 |
|
|
|
| 511 |
|
|
/**
|
| 512 |
|
|
* Normalized keycodes for webkit/safari
|
| 513 |
|
|
* @property webkitKeymap
|
| 514 |
|
|
* @type {int: int}
|
| 515 |
|
|
* @private
|
| 516 |
|
|
* @static
|
| 517 |
|
|
* @final
|
| 518 |
|
|
*/
|
| 519 |
|
|
var webkitKeymap = {
|
| 520 |
|
|
63232: 38, // up
|
| 521 |
|
|
63233: 40, // down
|
| 522 |
|
|
63234: 37, // left
|
| 523 |
|
|
63235: 39, // right
|
| 524 |
|
|
63276: 33, // page up
|
| 525 |
|
|
63277: 34, // page down
|
| 526 |
|
|
25: 9 // SHIFT-TAB (Safari provides a different key code in
|
| 527 |
|
|
// this case, even though the shiftKey modifier is set)
|
| 528 |
|
|
};
|
| 529 |
|
|
|
| 530 |
|
|
return {
|
| 531 |
|
|
|
| 532 |
|
|
/**
|
| 533 |
|
|
* The number of times we should look for elements that are not
|
| 534 |
|
|
* in the DOM at the time the event is requested after the document
|
| 535 |
|
|
* has been loaded. The default is 4000@amp;10 ms, so it will poll
|
| 536 |
|
|
* for 40 seconds or until all outstanding handlers are bound
|
| 537 |
|
|
* (whichever comes first).
|
| 538 |
|
|
* @property POLL_RETRYS
|
| 539 |
|
|
* @type int
|
| 540 |
|
|
* @static
|
| 541 |
|
|
* @final
|
| 542 |
|
|
*/
|
| 543 |
|
|
POLL_RETRYS: 4000,
|
| 544 |
|
|
|
| 545 |
|
|
/**
|
| 546 |
|
|
* The poll interval in milliseconds
|
| 547 |
|
|
* @property POLL_INTERVAL
|
| 548 |
|
|
* @type int
|
| 549 |
|
|
* @static
|
| 550 |
|
|
* @final
|
| 551 |
|
|
*/
|
| 552 |
|
|
POLL_INTERVAL: 10,
|
| 553 |
|
|
|
| 554 |
|
|
/**
|
| 555 |
|
|
* Element to bind, int constant
|
| 556 |
|
|
* @property EL
|
| 557 |
|
|
* @type int
|
| 558 |
|
|
* @static
|
| 559 |
|
|
* @final
|
| 560 |
|
|
*/
|
| 561 |
|
|
EL: 0,
|
| 562 |
|
|
|
| 563 |
|
|
/**
|
| 564 |
|
|
* Type of event, int constant
|
| 565 |
|
|
* @property TYPE
|
| 566 |
|
|
* @type int
|
| 567 |
|
|
* @static
|
| 568 |
|
|
* @final
|
| 569 |
|
|
*/
|
| 570 |
|
|
TYPE: 1,
|
| 571 |
|
|
|
| 572 |
|
|
/**
|
| 573 |
|
|
* Function to execute, int constant
|
| 574 |
|
|
* @property FN
|
| 575 |
|
|
* @type int
|
| 576 |
|
|
* @static
|
| 577 |
|
|
* @final
|
| 578 |
|
|
*/
|
| 579 |
|
|
FN: 2,
|
| 580 |
|
|
|
| 581 |
|
|
/**
|
| 582 |
|
|
* Function wrapped for scope correction and cleanup, int constant
|
| 583 |
|
|
* @property WFN
|
| 584 |
|
|
* @type int
|
| 585 |
|
|
* @static
|
| 586 |
|
|
* @final
|
| 587 |
|
|
*/
|
| 588 |
|
|
WFN: 3,
|
| 589 |
|
|
|
| 590 |
|
|
/**
|
| 591 |
|
|
* Object passed in by the user that will be returned as a
|
| 592 |
|
|
* parameter to the callback, int constant. Specific to
|
| 593 |
|
|
* unload listeners
|
| 594 |
|
|
* @property OBJ
|
| 595 |
|
|
* @type int
|
| 596 |
|
|
* @static
|
| 597 |
|
|
* @final
|
| 598 |
|
|
*/
|
| 599 |
|
|
UNLOAD_OBJ: 3,
|
| 600 |
|
|
|
| 601 |
|
|
/**
|
| 602 |
|
|
* Adjusted scope, either the element we are registering the event
|
| 603 |
|
|
* on or the custom object passed in by the listener, int constant
|
| 604 |
|
|
* @property ADJ_SCOPE
|
| 605 |
|
|
* @type int
|
| 606 |
|
|
* @static
|
| 607 |
|
|
* @final
|
| 608 |
|
|
*/
|
| 609 |
|
|
ADJ_SCOPE: 4,
|
| 610 |
|
|
|
| 611 |
|
|
/**
|
| 612 |
|
|
* The original obj passed into addListener
|
| 613 |
|
|
* @property OBJ
|
| 614 |
|
|
* @type int
|
| 615 |
|
|
* @static
|
| 616 |
|
|
* @final
|
| 617 |
|
|
*/
|
| 618 |
|
|
OBJ: 5,
|
| 619 |
|
|
|
| 620 |
|
|
/**
|
| 621 |
|
|
* The original scope parameter passed into addListener
|
| 622 |
|
|
* @property OVERRIDE
|
| 623 |
|
|
* @type int
|
| 624 |
|
|
* @static
|
| 625 |
|
|
* @final
|
| 626 |
|
|
*/
|
| 627 |
|
|
OVERRIDE: 6,
|
| 628 |
|
|
|
| 629 |
|
|
/**
|
| 630 |
|
|
* addListener/removeListener can throw errors in unexpected scenarios.
|
| 631 |
|
|
* These errors are suppressed, the method returns false, and this property
|
| 632 |
|
|
* is set
|
| 633 |
|
|
* @property lastError
|
| 634 |
|
|
* @static
|
| 635 |
|
|
* @type Error
|
| 636 |
|
|
*/
|
| 637 |
|
|
lastError: null,
|
| 638 |
|
|
|
| 639 |
|
|
/**
|
| 640 |
|
|
* Safari detection
|
| 641 |
|
|
* @property isSafari
|
| 642 |
|
|
* @private
|
| 643 |
|
|
* @static
|
| 644 |
|
|
* @deprecated use YAHOO.env.ua.webkit
|
| 645 |
|
|
*/
|
| 646 |
|
|
isSafari: YAHOO.env.ua.webkit,
|
| 647 |
|
|
|
| 648 |
|
|
/**
|
| 649 |
|
|
* webkit version
|
| 650 |
|
|
* @property webkit
|
| 651 |
|
|
* @type string
|
| 652 |
|
|
* @private
|
| 653 |
|
|
* @static
|
| 654 |
|
|
* @deprecated use YAHOO.env.ua.webkit
|
| 655 |
|
|
*/
|
| 656 |
|
|
webkit: YAHOO.env.ua.webkit,
|
| 657 |
|
|
|
| 658 |
|
|
/**
|
| 659 |
|
|
* IE detection
|
| 660 |
|
|
* @property isIE
|
| 661 |
|
|
* @private
|
| 662 |
|
|
* @static
|
| 663 |
|
|
* @deprecated use YAHOO.env.ua.ie
|
| 664 |
|
|
*/
|
| 665 |
|
|
isIE: YAHOO.env.ua.ie,
|
| 666 |
|
|
|
| 667 |
|
|
/**
|
| 668 |
|
|
* poll handle
|
| 669 |
|
|
* @property _interval
|
| 670 |
|
|
* @static
|
| 671 |
|
|
* @private
|
| 672 |
|
|
*/
|
| 673 |
|
|
_interval: null,
|
| 674 |
|
|
|
| 675 |
|
|
/**
|
| 676 |
|
|
* document readystate poll handle
|
| 677 |
|
|
* @property _dri
|
| 678 |
|
|
* @static
|
| 679 |
|
|
* @private
|
| 680 |
|
|
*/
|
| 681 |
|
|
_dri: null,
|
| 682 |
|
|
|
| 683 |
|
|
/**
|
| 684 |
|
|
* True when the document is initially usable
|
| 685 |
|
|
* @property DOMReady
|
| 686 |
|
|
* @type boolean
|
| 687 |
|
|
* @static
|
| 688 |
|
|
*/
|
| 689 |
|
|
DOMReady: false,
|
| 690 |
|
|
|
| 691 |
|
|
/**
|
| 692 |
|
|
* @method startInterval
|
| 693 |
|
|
* @static
|
| 694 |
|
|
* @private
|
| 695 |
|
|
*/
|
| 696 |
|
|
startInterval: function() {
|
| 697 |
|
|
if (!this._interval) {
|
| 698 |
|
|
var self = this;
|
| 699 |
|
|
var callback = function() { self._tryPreloadAttach(); };
|
| 700 |
|
|
this._interval = setInterval(callback, this.POLL_INTERVAL);
|
| 701 |
|
|
}
|
| 702 |
|
|
},
|
| 703 |
|
|
|
| 704 |
|
|
/**
|
| 705 |
|
|
* Executes the supplied callback when the item with the supplied
|
| 706 |
|
|
* id is found. This is meant to be used to execute behavior as
|
| 707 |
|
|
* soon as possible as the page loads. If you use this after the
|
| 708 |
|
|
* initial page load it will poll for a fixed time for the element.
|
| 709 |
|
|
* The number of times it will poll and the frequency are
|
| 710 |
|
|
* configurable. By default it will poll for 10 seconds.
|
| 711 |
|
|
*
|
| 712 |
|
|
* <p>The callback is executed with a single parameter:
|
| 713 |
|
|
* the custom object parameter, if provided.</p>
|
| 714 |
|
|
*
|
| 715 |
|
|
* @method onAvailable
|
| 716 |
|
|
*
|
| 717 |
|
|
* @param {string||string[]} p_id the id of the element, or an array
|
| 718 |
|
|
* of ids to look for.
|
| 719 |
|
|
* @param {function} p_fn what to execute when the element is found.
|
| 720 |
|
|
* @param {object} p_obj an optional object to be passed back as
|
| 721 |
|
|
* a parameter to p_fn.
|
| 722 |
|
|
* @param {boolean|object} p_override If set to true, p_fn will execute
|
| 723 |
|
|
* in the scope of p_obj, if set to an object it
|
| 724 |
|
|
* will execute in the scope of that object
|
| 725 |
|
|
* @param checkContent {boolean} check child node readiness (onContentReady)
|
| 726 |
|
|
* @static
|
| 727 |
|
|
*/
|
| 728 |
|
|
onAvailable: function(p_id, p_fn, p_obj, p_override, checkContent) {
|
| 729 |
|
|
|
| 730 |
|
|
var a = (YAHOO.lang.isString(p_id)) ? [p_id] : p_id;
|
| 731 |
|
|
|
| 732 |
|
|
for (var i=0; i<a.length; i=i+1) {
|
| 733 |
|
|
onAvailStack.push({id: a[i],
|
| 734 |
|
|
fn: p_fn,
|
| 735 |
|
|
obj: p_obj,
|
| 736 |
|
|
override: p_override,
|
| 737 |
|
|
checkReady: checkContent });
|
| 738 |
|
|
}
|
| 739 |
|
|
retryCount = this.POLL_RETRYS;
|
| 740 |
|
|
this.startInterval();
|
| 741 |
|
|
},
|
| 742 |
|
|
|
| 743 |
|
|
/**
|
| 744 |
|
|
* Works the same way as onAvailable, but additionally checks the
|
| 745 |
|
|
* state of sibling elements to determine if the content of the
|
| 746 |
|
|
* available element is safe to modify.
|
| 747 |
|
|
*
|
| 748 |
|
|
* <p>The callback is executed with a single parameter:
|
| 749 |
|
|
* the custom object parameter, if provided.</p>
|
| 750 |
|
|
*
|
| 751 |
|
|
* @method onContentReady
|
| 752 |
|
|
*
|
| 753 |
|
|
* @param {string} p_id the id of the element to look for.
|
| 754 |
|
|
* @param {function} p_fn what to execute when the element is ready.
|
| 755 |
|
|
* @param {object} p_obj an optional object to be passed back as
|
| 756 |
|
|
* a parameter to p_fn.
|
| 757 |
|
|
* @param {boolean|object} p_override If set to true, p_fn will execute
|
| 758 |
|
|
* in the scope of p_obj. If an object, p_fn will
|
| 759 |
|
|
* exectute in the scope of that object
|
| 760 |
|
|
*
|
| 761 |
|
|
* @static
|
| 762 |
|
|
*/
|
| 763 |
|
|
onContentReady: function(p_id, p_fn, p_obj, p_override) {
|
| 764 |
|
|
this.onAvailable(p_id, p_fn, p_obj, p_override, true);
|
| 765 |
|
|
},
|
| 766 |
|
|
|
| 767 |
|
|
/**
|
| 768 |
|
|
* Executes the supplied callback when the DOM is first usable. This
|
| 769 |
|
|
* will execute immediately if called after the DOMReady event has
|
| 770 |
|
|
* fired. @todo the DOMContentReady event does not fire when the
|
| 771 |
|
|
* script is dynamically injected into the page. This means the
|
| 772 |
|
|
* DOMReady custom event will never fire in FireFox or Opera when the
|
| 773 |
|
|
* library is injected. It _will_ fire in Safari, and the IE
|
| 774 |
|
|
* implementation would allow for us to fire it if the defered script
|
| 775 |
|
|
* is not available. We want this to behave the same in all browsers.
|
| 776 |
|
|
* Is there a way to identify when the script has been injected
|
| 777 |
|
|
* instead of included inline? Is there a way to know whether the
|
| 778 |
|
|
* window onload event has fired without having had a listener attached
|
| 779 |
|
|
* to it when it did so?
|
| 780 |
|
|
*
|
| 781 |
|
|
* <p>The callback is a CustomEvent, so the signature is:</p>
|
| 782 |
|
|
* <p>type <string>, args <array>, customobject <object></p>
|
| 783 |
|
|
* <p>For DOMReady events, there are no fire argments, so the
|
| 784 |
|
|
* signature is:</p>
|
| 785 |
|
|
* <p>"DOMReady", [], obj</p>
|
| 786 |
|
|
*
|
| 787 |
|
|
*
|
| 788 |
|
|
* @method onDOMReady
|
| 789 |
|
|
*
|
| 790 |
|
|
* @param {function} p_fn what to execute when the element is found.
|
| 791 |
|
|
* @param {object} p_obj an optional object to be passed back as
|
| 792 |
|
|
* a parameter to p_fn.
|
| 793 |
|
|
* @param {boolean|object} p_scope If set to true, p_fn will execute
|
| 794 |
|
|
* in the scope of p_obj, if set to an object it
|
| 795 |
|
|
* will execute in the scope of that object
|
| 796 |
|
|
*
|
| 797 |
|
|
* @static
|
| 798 |
|
|
*/
|
| 799 |
|
|
onDOMReady: function(p_fn, p_obj, p_override) {
|
| 800 |
|
|
if (this.DOMReady) {
|
| 801 |
|
|
setTimeout(function() {
|
| 802 |
|
|
var s = window;
|
| 803 |
|
|
if (p_override) {
|
| 804 |
|
|
if (p_override === true) {
|
| 805 |
|
|
s = p_obj;
|
| 806 |
|
|
} else {
|
| 807 |
|
|
s = p_override;
|
| 808 |
|
|
}
|
| 809 |
|
|
}
|
| 810 |
|
|
p_fn.call(s, "DOMReady", [], p_obj);
|
| 811 |
|
|
}, 0);
|
| 812 |
|
|
} else {
|
| 813 |
|
|
this.DOMReadyEvent.subscribe(p_fn, p_obj, p_override);
|
| 814 |
|
|
}
|
| 815 |
|
|
},
|
| 816 |
|
|
|
| 817 |
|
|
/**
|
| 818 |
|
|
* Appends an event handler
|
| 819 |
|
|
*
|
| 820 |
|
|
* @method addListener
|
| 821 |
|
|
*
|
| 822 |
|
|
* @param {String|HTMLElement|Array|NodeList} el An id, an element
|
| 823 |
|
|
* reference, or a collection of ids and/or elements to assign the
|
| 824 |
|
|
* listener to.
|
| 825 |
|
|
* @param {String} sType The type of event to append
|
| 826 |
|
|
* @param {Function} fn The method the event invokes
|
| 827 |
|
|
* @param {Object} obj An arbitrary object that will be
|
| 828 |
|
|
* passed as a parameter to the handler
|
| 829 |
|
|
* @param {Boolean|object} override If true, the obj passed in becomes
|
| 830 |
|
|
* the execution scope of the listener. If an
|
| 831 |
|
|
* object, this object becomes the execution
|
| 832 |
|
|
* scope.
|
| 833 |
|
|
* @return {Boolean} True if the action was successful or defered,
|
| 834 |
|
|
* false if one or more of the elements
|
| 835 |
|
|
* could not have the listener attached,
|
| 836 |
|
|
* or if the operation throws an exception.
|
| 837 |
|
|
* @static
|
| 838 |
|
|
*/
|
| 839 |
|
|
addListener: function(el, sType, fn, obj, override) {
|
| 840 |
|
|
|
| 841 |
|
|
if (!fn || !fn.call) {
|
| 842 |
|
|
// throw new TypeError(sType + " addListener call failed, callback undefined");
|
| 843 |
|
|
return false;
|
| 844 |
|
|
}
|
| 845 |
|
|
|
| 846 |
|
|
// The el argument can be an array of elements or element ids.
|
| 847 |
|
|
if ( this._isValidCollection(el)) {
|
| 848 |
|
|
var ok = true;
|
| 849 |
|
|
for (var i=0,len=el.length; i<len; ++i) {
|
| 850 |
|
|
ok = this.on(el[i],
|
| 851 |
|
|
sType,
|
| 852 |
|
|
fn,
|
| 853 |
|
|
obj,
|
| 854 |
|
|
override) && ok;
|
| 855 |
|
|
}
|
| 856 |
|
|
return ok;
|
| 857 |
|
|
|
| 858 |
|
|
} else if (YAHOO.lang.isString(el)) {
|
| 859 |
|
|
var oEl = this.getEl(el);
|
| 860 |
|
|
// If the el argument is a string, we assume it is
|
| 861 |
|
|
// actually the id of the element. If the page is loaded
|
| 862 |
|
|
// we convert el to the actual element, otherwise we
|
| 863 |
|
|
// defer attaching the event until onload event fires
|
| 864 |
|
|
|
| 865 |
|
|
// check to see if we need to delay hooking up the event
|
| 866 |
|
|
// until after the page loads.
|
| 867 |
|
|
if (oEl) {
|
| 868 |
|
|
el = oEl;
|
| 869 |
|
|
} else {
|
| 870 |
|
|
// defer adding the event until the element is available
|
| 871 |
|
|
this.onAvailable(el, function() {
|
| 872 |
|
|
YAHOO.util.Event.on(el, sType, fn, obj, override);
|
| 873 |
|
|
});
|
| 874 |
|
|
|
| 875 |
|
|
return true;
|
| 876 |
|
|
}
|
| 877 |
|
|
}
|
| 878 |
|
|
|
| 879 |
|
|
// Element should be an html element or an array if we get
|
| 880 |
|
|
// here.
|
| 881 |
|
|
if (!el) {
|
| 882 |
|
|
return false;
|
| 883 |
|
|
}
|
| 884 |
|
|
|
| 885 |
|
|
// we need to make sure we fire registered unload events
|
| 886 |
|
|
// prior to automatically unhooking them. So we hang on to
|
| 887 |
|
|
// these instead of attaching them to the window and fire the
|
| 888 |
|
|
// handles explicitly during our one unload event.
|
| 889 |
|
|
if ("unload" == sType && obj !== this) {
|
| 890 |
|
|
unloadListeners[unloadListeners.length] =
|
| 891 |
|
|
[el, sType, fn, obj, override];
|
| 892 |
|
|
return true;
|
| 893 |
|
|
}
|
| 894 |
|
|
|
| 895 |
|
|
|
| 896 |
|
|
// if the user chooses to override the scope, we use the custom
|
| 897 |
|
|
// object passed in, otherwise the executing scope will be the
|
| 898 |
|
|
// HTML element that the event is registered on
|
| 899 |
|
|
var scope = el;
|
| 900 |
|
|
if (override) {
|
| 901 |
|
|
if (override === true) {
|
| 902 |
|
|
scope = obj;
|
| 903 |
|
|
} else {
|
| 904 |
|
|
scope = override;
|
| 905 |
|
|
}
|
| 906 |
|
|
}
|
| 907 |
|
|
|
| 908 |
|
|
// wrap the function so we can return the obj object when
|
| 909 |
|
|
// the event fires;
|
| 910 |
|
|
var wrappedFn = function(e) {
|
| 911 |
|
|
return fn.call(scope, YAHOO.util.Event.getEvent(e, el),
|
| 912 |
|
|
obj);
|
| 913 |
|
|
};
|
| 914 |
|
|
|
| 915 |
|
|
var li = [el, sType, fn, wrappedFn, scope, obj, override];
|
| 916 |
|
|
var index = listeners.length;
|
| 917 |
|
|
// cache the listener so we can try to automatically unload
|
| 918 |
|
|
listeners[index] = li;
|
| 919 |
|
|
|
| 920 |
|
|
if (this.useLegacyEvent(el, sType)) {
|
| 921 |
|
|
var legacyIndex = this.getLegacyIndex(el, sType);
|
| 922 |
|
|
|
| 923 |
|
|
// Add a new dom0 wrapper if one is not detected for this
|
| 924 |
|
|
// element
|
| 925 |
|
|
if ( legacyIndex == -1 ||
|
| 926 |
|
|
el != legacyEvents[legacyIndex][0] ) {
|
| 927 |
|
|
|
| 928 |
|
|
legacyIndex = legacyEvents.length;
|
| 929 |
|
|
legacyMap[el.id + sType] = legacyIndex;
|
| 930 |
|
|
|
| 931 |
|
|
// cache the signature for the DOM0 event, and
|
| 932 |
|
|
// include the existing handler for the event, if any
|
| 933 |
|
|
legacyEvents[legacyIndex] =
|
| 934 |
|
|
[el, sType, el["on" + sType]];
|
| 935 |
|
|
legacyHandlers[legacyIndex] = [];
|
| 936 |
|
|
|
| 937 |
|
|
el["on" + sType] =
|
| 938 |
|
|
function(e) {
|
| 939 |
|
|
YAHOO.util.Event.fireLegacyEvent(
|
| 940 |
|
|
YAHOO.util.Event.getEvent(e), legacyIndex);
|
| 941 |
|
|
};
|
| 942 |
|
|
}
|
| 943 |
|
|
|
| 944 |
|
|
// add a reference to the wrapped listener to our custom
|
| 945 |
|
|
// stack of events
|
| 946 |
|
|
//legacyHandlers[legacyIndex].push(index);
|
| 947 |
|
|
legacyHandlers[legacyIndex].push(li);
|
| 948 |
|
|
|
| 949 |
|
|
} else {
|
| 950 |
|
|
try {
|
| 951 |
|
|
this._simpleAdd(el, sType, wrappedFn, false);
|
| 952 |
|
|
} catch(ex) {
|
| 953 |
|
|
// handle an error trying to attach an event. If it fails
|
| 954 |
|
|
// we need to clean up the cache
|
| 955 |
|
|
this.lastError = ex;
|
| 956 |
|
|
this.removeListener(el, sType, fn);
|
| 957 |
|
|
return false;
|
| 958 |
|
|
}
|
| 959 |
|
|
}
|
| 960 |
|
|
|
| 961 |
|
|
return true;
|
| 962 |
|
|
|
| 963 |
|
|
},
|
| 964 |
|
|
|
| 965 |
|
|
/**
|
| 966 |
|
|
* When using legacy events, the handler is routed to this object
|
| 967 |
|
|
* so we can fire our custom listener stack.
|
| 968 |
|
|
* @method fireLegacyEvent
|
| 969 |
|
|
* @static
|
| 970 |
|
|
* @private
|
| 971 |
|
|
*/
|
| 972 |
|
|
fireLegacyEvent: function(e, legacyIndex) {
|
| 973 |
|
|
var ok=true,le,lh,li,scope,ret;
|
| 974 |
|
|
|
| 975 |
|
|
lh = legacyHandlers[legacyIndex];
|
| 976 |
|
|
for (var i=0,len=lh.length; i<len; ++i) {
|
| 977 |
|
|
li = lh[i];
|
| 978 |
|
|
if ( li && li[this.WFN] ) {
|
| 979 |
|
|
scope = li[this.ADJ_SCOPE];
|
| 980 |
|
|
ret = li[this.WFN].call(scope, e);
|
| 981 |
|
|
ok = (ok && ret);
|
| 982 |
|
|
}
|
| 983 |
|
|
}
|
| 984 |
|
|
|
| 985 |
|
|
// Fire the original handler if we replaced one. We fire this
|
| 986 |
|
|
// after the other events to keep stopPropagation/preventDefault
|
| 987 |
|
|
// that happened in the DOM0 handler from touching our DOM2
|
| 988 |
|
|
// substitute
|
| 989 |
|
|
le = legacyEvents[legacyIndex];
|
| 990 |
|
|
if (le && le[2]) {
|
| 991 |
|
|
le[2](e);
|
| 992 |
|
|
}
|
| 993 |
|
|
|
| 994 |
|
|
return ok;
|
| 995 |
|
|
},
|
| 996 |
|
|
|
| 997 |
|
|
/**
|
| 998 |
|
|
* Returns the legacy event index that matches the supplied
|
| 999 |
|
|
* signature
|
| 1000 |
|
|
* @method getLegacyIndex
|
| 1001 |
|
|
* @static
|
| 1002 |
|
|
* @private
|
| 1003 |
|
|
*/
|
| 1004 |
|
|
getLegacyIndex: function(el, sType) {
|
| 1005 |
|
|
var key = this.generateId(el) + sType;
|
| 1006 |
|
|
if (typeof legacyMap[key] == "undefined") {
|
| 1007 |
|
|
return -1;
|
| 1008 |
|
|
} else {
|
| 1009 |
|
|
return legacyMap[key];
|
| 1010 |
|
|
}
|
| 1011 |
|
|
},
|
| 1012 |
|
|
|
| 1013 |
|
|
/**
|
| 1014 |
|
|
* Logic that determines when we should automatically use legacy
|
| 1015 |
|
|
* events instead of DOM2 events. Currently this is limited to old
|
| 1016 |
|
|
* Safari browsers with a broken preventDefault
|
| 1017 |
|
|
* @method useLegacyEvent
|
| 1018 |
|
|
* @static
|
| 1019 |
|
|
* @private
|
| 1020 |
|
|
*/
|
| 1021 |
|
|
useLegacyEvent: function(el, sType) {
|
| 1022 |
|
|
if (this.webkit && ("click"==sType || "dblclick"==sType)) {
|
| 1023 |
|
|
var v = parseInt(this.webkit, 10);
|
| 1024 |
|
|
if (!isNaN(v) && v<418) {
|
| 1025 |
|
|
return true;
|
| 1026 |
|
|
}
|
| 1027 |
|
|
}
|
| 1028 |
|
|
return false;
|
| 1029 |
|
|
},
|
| 1030 |
|
|
|
| 1031 |
|
|
/**
|
| 1032 |
|
|
* Removes an event listener
|
| 1033 |
|
|
*
|
| 1034 |
|
|
* @method removeListener
|
| 1035 |
|
|
*
|
| 1036 |
|
|
* @param {String|HTMLElement|Array|NodeList} el An id, an element
|
| 1037 |
|
|
* reference, or a collection of ids and/or elements to remove
|
| 1038 |
|
|
* the listener from.
|
| 1039 |
|
|
* @param {String} sType the type of event to remove.
|
| 1040 |
|
|
* @param {Function} fn the method the event invokes. If fn is
|
| 1041 |
|
|
* undefined, then all event handlers for the type of event are
|
| 1042 |
|
|
* removed.
|
| 1043 |
|
|
* @return {boolean} true if the unbind was successful, false
|
| 1044 |
|
|
* otherwise.
|
| 1045 |
|
|
* @static
|
| 1046 |
|
|
*/
|
| 1047 |
|
|
removeListener: function(el, sType, fn) {
|
| 1048 |
|
|
var i, len, li;
|
| 1049 |
|
|
|
| 1050 |
|
|
// The el argument can be a string
|
| 1051 |
|
|
if (typeof el == "string") {
|
| 1052 |
|
|
el = this.getEl(el);
|
| 1053 |
|
|
// The el argument can be an array of elements or element ids.
|
| 1054 |
|
|
} else if ( this._isValidCollection(el)) {
|
| 1055 |
|
|
var ok = true;
|
| 1056 |
|
|
for (i=0,len=el.length; i<len; ++i) {
|
| 1057 |
|
|
ok = ( this.removeListener(el[i], sType, fn) && ok );
|
| 1058 |
|
|
}
|
| 1059 |
|
|
return ok;
|
| 1060 |
|
|
}
|
| 1061 |
|
|
|
| 1062 |
|
|
if (!fn || !fn.call) {
|
| 1063 |
|
|
//return false;
|
| 1064 |
|
|
return this.purgeElement(el, false, sType);
|
| 1065 |
|
|
}
|
| 1066 |
|
|
|
| 1067 |
|
|
if ("unload" == sType) {
|
| 1068 |
|
|
|
| 1069 |
|
|
for (i=0, len=unloadListeners.length; i<len; i++) {
|
| 1070 |
|
|
li = unloadListeners[i];
|
| 1071 |
|
|
if (li &&
|
| 1072 |
|
|
li[0] == el &&
|
| 1073 |
|
|
li[1] == sType &&
|
| 1074 |
|
|
li[2] == fn) {
|
| 1075 |
|
|
//unloadListeners.splice(i, 1);
|
| 1076 |
|
|
unloadListeners[i]=null;
|
| 1077 |
|
|
return true;
|
| 1078 |
|
|
}
|
| 1079 |
|
|
}
|
| 1080 |
|
|
|
| 1081 |
|
|
return false;
|
| 1082 |
|
|
}
|
| 1083 |
|
|
|
| 1084 |
|
|
var cacheItem = null;
|
| 1085 |
|
|
|
| 1086 |
|
|
// The index is a hidden parameter; needed to remove it from
|
| 1087 |
|
|
// the method signature because it was tempting users to
|
| 1088 |
|
|
// try and take advantage of it, which is not possible.
|
| 1089 |
|
|
var index = arguments[3];
|
| 1090 |
|
|
|
| 1091 |
|
|
if ("undefined" === typeof index) {
|
| 1092 |
|
|
index = this._getCacheIndex(el, sType, fn);
|
| 1093 |
|
|
}
|
| 1094 |
|
|
|
| 1095 |
|
|
if (index >= 0) {
|
| 1096 |
|
|
cacheItem = listeners[index];
|
| 1097 |
|
|
}
|
| 1098 |
|
|
|
| 1099 |
|
|
if (!el || !cacheItem) {
|
| 1100 |
|
|
return false;
|
| 1101 |
|
|
}
|
| 1102 |
|
|
|
| 1103 |
|
|
|
| 1104 |
|
|
if (this.useLegacyEvent(el, sType)) {
|
| 1105 |
|
|
var legacyIndex = this.getLegacyIndex(el, sType);
|
| 1106 |
|
|
var llist = legacyHandlers[legacyIndex];
|
| 1107 |
|
|
if (llist) {
|
| 1108 |
|
|
for (i=0, len=llist.length; i<len; ++i) {
|
| 1109 |
|
|
li = llist[i];
|
| 1110 |
|
|
if (li &&
|
| 1111 |
|
|
li[this.EL] == el &&
|
| 1112 |
|
|
li[this.TYPE] == sType &&
|
| 1113 |
|
|
li[this.FN] == fn) {
|
| 1114 |
|
|
//llist.splice(i, 1);
|
| 1115 |
|
|
llist[i]=null;
|
| 1116 |
|
|
break;
|
| 1117 |
|
|
}
|
| 1118 |
|
|
}
|
| 1119 |
|
|
}
|
| 1120 |
|
|
|
| 1121 |
|
|
} else {
|
| 1122 |
|
|
try {
|
| 1123 |
|
|
this._simpleRemove(el, sType, cacheItem[this.WFN], false);
|
| 1124 |
|
|
} catch(ex) {
|
| 1125 |
|
|
this.lastError = ex;
|
| 1126 |
|
|
return false;
|
| 1127 |
|
|
}
|
| 1128 |
|
|
}
|
| 1129 |
|
|
|
| 1130 |
|
|
// removed the wrapped handler
|
| 1131 |
|
|
delete listeners[index][this.WFN];
|
| 1132 |
|
|
delete listeners[index][this.FN];
|
| 1133 |
|
|
//listeners.splice(index, 1);
|
| 1134 |
|
|
listeners[index]=null;
|
| 1135 |
|
|
|
| 1136 |
|
|
return true;
|
| 1137 |
|
|
|
| 1138 |
|
|
},
|
| 1139 |
|
|
|
| 1140 |
|
|
/**
|
| 1141 |
|
|
* Returns the event's target element. Safari sometimes provides
|
| 1142 |
|
|
* a text node, and this is automatically resolved to the text
|
| 1143 |
|
|
* node's parent so that it behaves like other browsers.
|
| 1144 |
|
|
* @method getTarget
|
| 1145 |
|
|
* @param {Event} ev the event
|
| 1146 |
|
|
* @param {boolean} resolveTextNode when set to true the target's
|
| 1147 |
|
|
* parent will be returned if the target is a
|
| 1148 |
|
|
* text node. @deprecated, the text node is
|
| 1149 |
|
|
* now resolved automatically
|
| 1150 |
|
|
* @return {HTMLElement} the event's target
|
| 1151 |
|
|
* @static
|
| 1152 |
|
|
*/
|
| 1153 |
|
|
getTarget: function(ev, resolveTextNode) {
|
| 1154 |
|
|
var t = ev.target || ev.srcElement;
|
| 1155 |
|
|
return this.resolveTextNode(t);
|
| 1156 |
|
|
},
|
| 1157 |
|
|
|
| 1158 |
|
|
/**
|
| 1159 |
|
|
* In some cases, some browsers will return a text node inside
|
| 1160 |
|
|
* the actual element that was targeted. This normalizes the
|
| 1161 |
|
|
* return value for getTarget and getRelatedTarget.
|
| 1162 |
|
|
* @method resolveTextNode
|
| 1163 |
|
|
* @param {HTMLElement} node node to resolve
|
| 1164 |
|
|
* @return {HTMLElement} the normized node
|
| 1165 |
|
|
* @static
|
| 1166 |
|
|
*/
|
| 1167 |
|
|
resolveTextNode: function(node) {
|
| 1168 |
|
|
if (node && 3 == node.nodeType) {
|
| 1169 |
|
|
return node.parentNode;
|
| 1170 |
|
|
} else {
|
| 1171 |
|
|
return node;
|
| 1172 |
|
|
}
|
| 1173 |
|
|
},
|
| 1174 |
|
|
|
| 1175 |
|
|
/**
|
| 1176 |
|
|
* Returns the event's pageX
|
| 1177 |
|
|
* @method getPageX
|
| 1178 |
|
|
* @param {Event} ev the event
|
| 1179 |
|
|
* @return {int} the event's pageX
|
| 1180 |
|
|
* @static
|
| 1181 |
|
|
*/
|
| 1182 |
|
|
getPageX: function(ev) {
|
| 1183 |
|
|
var x = ev.pageX;
|
| 1184 |
|
|
if (!x && 0 !== x) {
|
| 1185 |
|
|
x = ev.clientX || 0;
|
| 1186 |
|
|
|
| 1187 |
|
|
if ( this.isIE ) {
|
| 1188 |
|
|
x += this._getScrollLeft();
|
| 1189 |
|
|
}
|
| 1190 |
|
|
}
|
| 1191 |
|
|
|
| 1192 |
|
|
return x;
|
| 1193 |
|
|
},
|
| 1194 |
|
|
|
| 1195 |
|
|
/**
|
| 1196 |
|
|
* Returns the event's pageY
|
| 1197 |
|
|
* @method getPageY
|
| 1198 |
|
|
* @param {Event} ev the event
|
| 1199 |
|
|
* @return {int} the event's pageY
|
| 1200 |
|
|
* @static
|
| 1201 |
|
|
*/
|
| 1202 |
|
|
getPageY: function(ev) {
|
| 1203 |
|
|
var y = ev.pageY;
|
| 1204 |
|
|
if (!y && 0 !== y) {
|
| 1205 |
|
|
y = ev.clientY || 0;
|
| 1206 |
|
|
|
| 1207 |
|
|
if ( this.isIE ) {
|
| 1208 |
|
|
y += this._getScrollTop();
|
| 1209 |
|
|
}
|
| 1210 |
|
|
}
|
| 1211 |
|
|
|
| 1212 |
|
|
|
| 1213 |
|
|
return y;
|
| 1214 |
|
|
},
|
| 1215 |
|
|
|
| 1216 |
|
|
/**
|
| 1217 |
|
|
* Returns the pageX and pageY properties as an indexed array.
|
| 1218 |
|
|
* @method getXY
|
| 1219 |
|
|
* @param {Event} ev the event
|
| 1220 |
|
|
* @return {[x, y]} the pageX and pageY properties of the event
|
| 1221 |
|
|
* @static
|
| 1222 |
|
|
*/
|
| 1223 |
|
|
getXY: function(ev) {
|
| 1224 |
|
|
return [this.getPageX(ev), this.getPageY(ev)];
|
| 1225 |
|
|
},
|
| 1226 |
|
|
|
| 1227 |
|
|
/**
|
| 1228 |
|
|
* Returns the event's related target
|
| 1229 |
|
|
* @method getRelatedTarget
|
| 1230 |
|
|
* @param {Event} ev the event
|
| 1231 |
|
|
* @return {HTMLElement} the event's relatedTarget
|
| 1232 |
|
|
* @static
|
| 1233 |
|
|
*/
|
| 1234 |
|
|
getRelatedTarget: function(ev) {
|
| 1235 |
|
|
var t = ev.relatedTarget;
|
| 1236 |
|
|
if (!t) {
|
| 1237 |
|
|
if (ev.type == "mouseout") {
|
| 1238 |
|
|
t = ev.toElement;
|
| 1239 |
|
|
} else if (ev.type == "mouseover") {
|
| 1240 |
|
|
t = ev.fromElement;
|
| 1241 |
|
|
}
|
| 1242 |
|
|
}
|
| 1243 |
|
|
|
| 1244 |
|
|
return this.resolveTextNode(t);
|
| 1245 |
|
|
},
|
| 1246 |
|
|
|
| 1247 |
|
|
/**
|
| 1248 |
|
|
* Returns the time of the event. If the time is not included, the
|
| 1249 |
|
|
* event is modified using the current time.
|
| 1250 |
|
|
* @method getTime
|
| 1251 |
|
|
* @param {Event} ev the event
|
| 1252 |
|
|
* @return {Date} the time of the event
|
| 1253 |
|
|
* @static
|
| 1254 |
|
|
*/
|
| 1255 |
|
|
getTime: function(ev) {
|
| 1256 |
|
|
if (!ev.time) {
|
| 1257 |
|
|
var t = new Date().getTime();
|
| 1258 |
|
|
try {
|
| 1259 |
|
|
ev.time = t;
|
| 1260 |
|
|
} catch(ex) {
|
| 1261 |
|
|
this.lastError = ex;
|
| 1262 |
|
|
return t;
|
| 1263 |
|
|
}
|
| 1264 |
|
|
}
|
| 1265 |
|
|
|
| 1266 |
|
|
return ev.time;
|
| 1267 |
|
|
},
|
| 1268 |
|
|
|
| 1269 |
|
|
/**
|
| 1270 |
|
|
* Convenience method for stopPropagation + preventDefault
|
| 1271 |
|
|
* @method stopEvent
|
| 1272 |
|
|
* @param {Event} ev the event
|
| 1273 |
|
|
* @static
|
| 1274 |
|
|
*/
|
| 1275 |
|
|
stopEvent: function(ev) {
|
| 1276 |
|
|
this.stopPropagation(ev);
|
| 1277 |
|
|
this.preventDefault(ev);
|
| 1278 |
|
|
},
|
| 1279 |
|
|
|
| 1280 |
|
|
/**
|
| 1281 |
|
|
* Stops event propagation
|
| 1282 |
|
|
* @method stopPropagation
|
| 1283 |
|
|
* @param {Event} ev the event
|
| 1284 |
|
|
* @static
|
| 1285 |
|
|
*/
|
| 1286 |
|
|
stopPropagation: function(ev) {
|
| 1287 |
|
|
if (ev.stopPropagation) {
|
| 1288 |
|
|
ev.stopPropagation();
|
| 1289 |
|
|
} else {
|
| 1290 |
|
|
ev.cancelBubble = true;
|
| 1291 |
|
|
}
|
| 1292 |
|
|
},
|
| 1293 |
|
|
|
| 1294 |
|
|
/**
|
| 1295 |
|
|
* Prevents the default behavior of the event
|
| 1296 |
|
|
* @method preventDefault
|
| 1297 |
|
|
* @param {Event} ev the event
|
| 1298 |
|
|
* @static
|
| 1299 |
|
|
*/
|
| 1300 |
|
|
preventDefault: function(ev) {
|
| 1301 |
|
|
if (ev.preventDefault) {
|
| 1302 |
|
|
ev.preventDefault();
|
| 1303 |
|
|
} else {
|
| 1304 |
|
|
ev.returnValue = false;
|
| 1305 |
|
|
}
|
| 1306 |
|
|
},
|
| 1307 |
|
|
|
| 1308 |
|
|
/**
|
| 1309 |
|
|
* Finds the event in the window object, the caller's arguments, or
|
| 1310 |
|
|
* in the arguments of another method in the callstack. This is
|
| 1311 |
|
|
* executed automatically for events registered through the event
|
| 1312 |
|
|
* manager, so the implementer should not normally need to execute
|
| 1313 |
|
|
* this function at all.
|
| 1314 |
|
|
* @method getEvent
|
| 1315 |
|
|
* @param {Event} e the event parameter from the handler
|
| 1316 |
|
|
* @param {HTMLElement} boundEl the element the listener is attached to
|
| 1317 |
|
|
* @return {Event} the event
|
| 1318 |
|
|
* @static
|
| 1319 |
|
|
*/
|
| 1320 |
|
|
getEvent: function(e, boundEl) {
|
| 1321 |
|
|
var ev = e || window.event;
|
| 1322 |
|
|
|
| 1323 |
|
|
if (!ev) {
|
| 1324 |
|
|
var c = this.getEvent.caller;
|
| 1325 |
|
|
while (c) {
|
| 1326 |
|
|
ev = c.arguments[0];
|
| 1327 |
|
|
if (ev && Event == ev.constructor) {
|
| 1328 |
|
|
break;
|
| 1329 |
|
|
}
|
| 1330 |
|
|
c = c.caller;
|
| 1331 |
|
|
}
|
| 1332 |
|
|
}
|
| 1333 |
|
|
|
| 1334 |
|
|
// IE events that target non-browser objects (e.g., VML
|
| 1335 |
|
|
// canvas) will sometimes throw errors when you try to
|
| 1336 |
|
|
// inspect the properties of the event target. We try to
|
| 1337 |
|
|
// detect this condition, and provide a dummy target (the bound
|
| 1338 |
|
|
// element) to eliminate spurious errors.
|
| 1339 |
|
|
|
| 1340 |
|
|
// the implementation caused unexpected results in some
|
| 1341 |
|
|
// implementations, so this has been rolled back for now
|
| 1342 |
|
|
/*
|
| 1343 |
|
|
if (ev && this.isIE) {
|
| 1344 |
|
|
|
| 1345 |
|
|
try {
|
| 1346 |
|
|
|
| 1347 |
|
|
var el = ev.srcElement;
|
| 1348 |
|
|
|
| 1349 |
|
|
} catch(ex) {
|
| 1350 |
|
|
|
| 1351 |
|
|
|
| 1352 |
|
|
ev.target = boundEl;
|
| 1353 |
|
|
}
|
| 1354 |
|
|
|
| 1355 |
|
|
}
|
| 1356 |
|
|
*/
|
| 1357 |
|
|
|
| 1358 |
|
|
return ev;
|
| 1359 |
|
|
},
|
| 1360 |
|
|
|
| 1361 |
|
|
/**
|
| 1362 |
|
|
* Returns the charcode for an event
|
| 1363 |
|
|
* @method getCharCode
|
| 1364 |
|
|
* @param {Event} ev the event
|
| 1365 |
|
|
* @return {int} the event's charCode
|
| 1366 |
|
|
* @static
|
| 1367 |
|
|
*/
|
| 1368 |
|
|
getCharCode: function(ev) {
|
| 1369 |
|
|
var code = ev.keyCode || ev.charCode || 0;
|
| 1370 |
|
|
|
| 1371 |
|
|
// webkit normalization
|
| 1372 |
|
|
if (YAHOO.env.ua.webkit && (code in webkitKeymap)) {
|
| 1373 |
|
|
code = webkitKeymap[code];
|
| 1374 |
|
|
}
|
| 1375 |
|
|
return code;
|
| 1376 |
|
|
},
|
| 1377 |
|
|
|
| 1378 |
|
|
/**
|
| 1379 |
|
|
* Locating the saved event handler data by function ref
|
| 1380 |
|
|
*
|
| 1381 |
|
|
* @method _getCacheIndex
|
| 1382 |
|
|
* @static
|
| 1383 |
|
|
* @private
|
| 1384 |
|
|
*/
|
| 1385 |
|
|
_getCacheIndex: function(el, sType, fn) {
|
| 1386 |
|
|
for (var i=0,len=listeners.length; i<len; ++i) {
|
| 1387 |
|
|
var li = listeners[i];
|
| 1388 |
|
|
if ( li &&
|
| 1389 |
|
|
li[this.FN] == fn &&
|
| 1390 |
|
|
li[this.EL] == el &&
|
| 1391 |
|
|
li[this.TYPE] == sType ) {
|
| 1392 |
|
|
return i;
|
| 1393 |
|
|
}
|
| 1394 |
|
|
}
|
| 1395 |
|
|
|
| 1396 |
|
|
return -1;
|
| 1397 |
|
|
},
|
| 1398 |
|
|
|
| 1399 |
|
|
/**
|
| 1400 |
|
|
* Generates an unique ID for the element if it does not already
|
| 1401 |
|
|
* have one.
|
| 1402 |
|
|
* @method generateId
|
| 1403 |
|
|
* @param el the element to create the id for
|
| 1404 |
|
|
* @return {string} the resulting id of the element
|
| 1405 |
|
|
* @static
|
| 1406 |
|
|
*/
|
| 1407 |
|
|
generateId: function(el) {
|
| 1408 |
|
|
var id = el.id;
|
| 1409 |
|
|
|
| 1410 |
|
|
if (!id) {
|
| 1411 |
|
|
id = "yuievtautoid-" + counter;
|
| 1412 |
|
|
++counter;
|
| 1413 |
|
|
el.id = id;
|
| 1414 |
|
|
}
|
| 1415 |
|
|
|
| 1416 |
|
|
return id;
|
| 1417 |
|
|
},
|
| 1418 |
|
|
|
| 1419 |
|
|
|
| 1420 |
|
|
/**
|
| 1421 |
|
|
* We want to be able to use getElementsByTagName as a collection
|
| 1422 |
|
|
* to attach a group of events to. Unfortunately, different
|
| 1423 |
|
|
* browsers return different types of collections. This function
|
| 1424 |
|
|
* tests to determine if the object is array-like. It will also
|
| 1425 |
|
|
* fail if the object is an array, but is empty.
|
| 1426 |
|
|
* @method _isValidCollection
|
| 1427 |
|
|
* @param o the object to test
|
| 1428 |
|
|
* @return {boolean} true if the object is array-like and populated
|
| 1429 |
|
|
* @static
|
| 1430 |
|
|
* @private
|
| 1431 |
|
|
*/
|
| 1432 |
|
|
_isValidCollection: function(o) {
|
| 1433 |
|
|
try {
|
| 1434 |
|
|
return ( o && // o is something
|
| 1435 |
|
|
typeof o !== "string" && // o is not a string
|
| 1436 |
|
|
o.length && // o is indexed
|
| 1437 |
|
|
!o.tagName && // o is not an HTML element
|
| 1438 |
|
|
!o.alert && // o is not a window
|
| 1439 |
|
|
typeof o[0] !== "undefined" );
|
| 1440 |
|
|
} catch(ex) {
|
| 1441 |
|
|
return false;
|
| 1442 |
|
|
}
|
| 1443 |
|
|
|
| 1444 |
|
|
},
|
| 1445 |
|
|
|
| 1446 |
|
|
/**
|
| 1447 |
|
|
* @private
|
| 1448 |
|
|
* @property elCache
|
| 1449 |
|
|
* DOM element cache
|
| 1450 |
|
|
* @static
|
| 1451 |
|
|
* @deprecated Elements are not cached due to issues that arise when
|
| 1452 |
|
|
* elements are removed and re-added
|
| 1453 |
|
|
*/
|
| 1454 |
|
|
elCache: {},
|
| 1455 |
|
|
|
| 1456 |
|
|
/**
|
| 1457 |
|
|
* We cache elements bound by id because when the unload event
|
| 1458 |
|
|
* fires, we can no longer use document.getElementById
|
| 1459 |
|
|
* @method getEl
|
| 1460 |
|
|
* @static
|
| 1461 |
|
|
* @private
|
| 1462 |
|
|
* @deprecated Elements are not cached any longer
|
| 1463 |
|
|
*/
|
| 1464 |
|
|
getEl: function(id) {
|
| 1465 |
|
|
return (typeof id === "string") ? document.getElementById(id) : id;
|
| 1466 |
|
|
},
|
| 1467 |
|
|
|
| 1468 |
|
|
/**
|
| 1469 |
|
|
* Clears the element cache
|
| 1470 |
|
|
* @deprecated Elements are not cached any longer
|
| 1471 |
|
|
* @method clearCache
|
| 1472 |
|
|
* @static
|
| 1473 |
|
|
* @private
|
| 1474 |
|
|
*/
|
| 1475 |
|
|
clearCache: function() { },
|
| 1476 |
|
|
|
| 1477 |
|
|
/**
|
| 1478 |
|
|
* Custom event the fires when the dom is initially usable
|
| 1479 |
|
|
* @event DOMReadyEvent
|
| 1480 |
|
|
*/
|
| 1481 |
|
|
DOMReadyEvent: new YAHOO.util.CustomEvent("DOMReady", this),
|
| 1482 |
|
|
|
| 1483 |
|
|
/**
|
| 1484 |
|
|
* hook up any deferred listeners
|
| 1485 |
|
|
* @method _load
|
| 1486 |
|
|
* @static
|
| 1487 |
|
|
* @private
|
| 1488 |
|
|
*/
|
| 1489 |
|
|
_load: function(e) {
|
| 1490 |
|
|
|
| 1491 |
|
|
if (!loadComplete) {
|
| 1492 |
|
|
loadComplete = true;
|
| 1493 |
|
|
var EU = YAHOO.util.Event;
|
| 1494 |
|
|
|
| 1495 |
|
|
// Just in case DOMReady did not go off for some reason
|
| 1496 |
|
|
EU._ready();
|
| 1497 |
|
|
|
| 1498 |
|
|
// Available elements may not have been detected before the
|
| 1499 |
|
|
// window load event fires. Try to find them now so that the
|
| 1500 |
|
|
// the user is more likely to get the onAvailable notifications
|
| 1501 |
|
|
// before the window load notification
|
| 1502 |
|
|
EU._tryPreloadAttach();
|
| 1503 |
|
|
|
| 1504 |
|
|
// Remove the listener to assist with the IE memory issue, but not
|
| 1505 |
|
|
// for other browsers because FF 1.0x does not like it.
|
| 1506 |
|
|
//if (this.isIE) {
|
| 1507 |
|
|
//EU._simpleRemove(window, "load", EU._load);
|
| 1508 |
|
|
//}
|
| 1509 |
|
|
}
|
| 1510 |
|
|
},
|
| 1511 |
|
|
|
| 1512 |
|
|
/**
|
| 1513 |
|
|
* Fires the DOMReady event listeners the first time the document is
|
| 1514 |
|
|
* usable.
|
| 1515 |
|
|
* @method _ready
|
| 1516 |
|
|
* @static
|
| 1517 |
|
|
* @private
|
| 1518 |
|
|
*/
|
| 1519 |
|
|
_ready: function(e) {
|
| 1520 |
|
|
var EU = YAHOO.util.Event;
|
| 1521 |
|
|
if (!EU.DOMReady) {
|
| 1522 |
|
|
EU.DOMReady=true;
|
| 1523 |
|
|
|
| 1524 |
|
|
// Fire the content ready custom event
|
| 1525 |
|
|
EU.DOMReadyEvent.fire();
|
| 1526 |
|
|
|
| 1527 |
|
|
// Remove the DOMContentLoaded (FF/Opera)
|
| 1528 |
|
|
EU._simpleRemove(document, "DOMContentLoaded", EU._ready);
|
| 1529 |
|
|
}
|
| 1530 |
|
|
},
|
| 1531 |
|
|
|
| 1532 |
|
|
/**
|
| 1533 |
|
|
* Polling function that runs before the onload event fires,
|
| 1534 |
|
|
* attempting to attach to DOM Nodes as soon as they are
|
| 1535 |
|
|
* available
|
| 1536 |
|
|
* @method _tryPreloadAttach
|
| 1537 |
|
|
* @static
|
| 1538 |
|
|
* @private
|
| 1539 |
|
|
*/
|
| 1540 |
|
|
_tryPreloadAttach: function() {
|
| 1541 |
|
|
|
| 1542 |
|
|
if (this.locked) {
|
| 1543 |
|
|
return false;
|
| 1544 |
|
|
}
|
| 1545 |
|
|
|
| 1546 |
|
|
if (this.isIE) {
|
| 1547 |
|
|
// Hold off if DOMReady has not fired and check current
|
| 1548 |
|
|
// readyState to protect against the IE operation aborted
|
| 1549 |
|
|
// issue.
|
| 1550 |
|
|
//if (!this.DOMReady || "complete" !== document.readyState) {
|
| 1551 |
|
|
if (!this.DOMReady) {
|
| 1552 |
|
|
this.startInterval();
|
| 1553 |
|
|
return false;
|
| 1554 |
|
|
}
|
| 1555 |
|
|
}
|
| 1556 |
|
|
|
| 1557 |
|
|
this.locked = true;
|
| 1558 |
|
|
|
| 1559 |
|
|
|
| 1560 |
|
|
// keep trying until after the page is loaded. We need to
|
| 1561 |
|
|
// check the page load state prior to trying to bind the
|
| 1562 |
|
|
// elements so that we can be certain all elements have been
|
| 1563 |
|
|
// tested appropriately
|
| 1564 |
|
|
var tryAgain = !loadComplete;
|
| 1565 |
|
|
if (!tryAgain) {
|
| 1566 |
|
|
tryAgain = (retryCount > 0);
|
| 1567 |
|
|
}
|
| 1568 |
|
|
|
| 1569 |
|
|
// onAvailable
|
| 1570 |
|
|
var notAvail = [];
|
| 1571 |
|
|
|
| 1572 |
|
|
var executeItem = function (el, item) {
|
| 1573 |
|
|
var scope = el;
|
| 1574 |
|
|
if (item.override) {
|
| 1575 |
|
|
if (item.override === true) {
|
| 1576 |
|
|
scope = item.obj;
|
| 1577 |
|
|
} else {
|
| 1578 |
|
|
scope = item.override;
|
| 1579 |
|
|
}
|
| 1580 |
|
|
}
|
| 1581 |
|
|
item.fn.call(scope, item.obj);
|
| 1582 |
|
|
};
|
| 1583 |
|
|
|
| 1584 |
|
|
var i,len,item,el;
|
| 1585 |
|
|
|
| 1586 |
|
|
// onAvailable
|
| 1587 |
|
|
for (i=0,len=onAvailStack.length; i<len; ++i) {
|
| 1588 |
|
|
item = onAvailStack[i];
|
| 1589 |
|
|
if (item && !item.checkReady) {
|
| 1590 |
|
|
el = this.getEl(item.id);
|
| 1591 |
|
|
if (el) {
|
| 1592 |
|
|
executeItem(el, item);
|
| 1593 |
|
|
onAvailStack[i] = null;
|
| 1594 |
|
|
} else {
|
| 1595 |
|
|
notAvail.push(item);
|
| 1596 |
|
|
}
|
| 1597 |
|
|
}
|
| 1598 |
|
|
}
|
| 1599 |
|
|
|
| 1600 |
|
|
// onContentReady
|
| 1601 |
|
|
for (i=0,len=onAvailStack.length; i<len; ++i) {
|
| 1602 |
|
|
item = onAvailStack[i];
|
| 1603 |
|
|
if (item && item.checkReady) {
|
| 1604 |
|
|
el = this.getEl(item.id);
|
| 1605 |
|
|
|
| 1606 |
|
|
if (el) {
|
| 1607 |
|
|
// The element is available, but not necessarily ready
|
| 1608 |
|
|
// @todo should we test parentNode.nextSibling?
|
| 1609 |
|
|
if (loadComplete || el.nextSibling) {
|
| 1610 |
|
|
executeItem(el, item);
|
| 1611 |
|
|
onAvailStack[i] = null;
|
| 1612 |
|
|
}
|
| 1613 |
|
|
} else {
|
| 1614 |
|
|
notAvail.push(item);
|
| 1615 |
|
|
}
|
| 1616 |
|
|
}
|
| 1617 |
|
|
}
|
| 1618 |
|
|
|
| 1619 |
|
|
retryCount = (notAvail.length === 0) ? 0 : retryCount - 1;
|
| 1620 |
|
|
|
| 1621 |
|
|
if (tryAgain) {
|
| 1622 |
|
|
// we may need to strip the nulled out items here
|
| 1623 |
|
|
this.startInterval();
|
| 1624 |
|
|
} else {
|
| 1625 |
|
|
clearInterval(this._interval);
|
| 1626 |
|
|
this._interval = null;
|
| 1627 |
|
|
}
|
| 1628 |
|
|
|
| 1629 |
|
|
this.locked = false;
|
| 1630 |
|
|
|
| 1631 |
|
|
return true;
|
| 1632 |
|
|
|
| 1633 |
|
|
},
|
| 1634 |
|
|
|
| 1635 |
|
|
/**
|
| 1636 |
|
|
* Removes all listeners attached to the given element via addListener.
|
| 1637 |
|
|
* Optionally, the node's children can also be purged.
|
| 1638 |
|
|
* Optionally, you can specify a specific type of event to remove.
|
| 1639 |
|
|
* @method purgeElement
|
| 1640 |
|
|
* @param {HTMLElement} el the element to purge
|
| 1641 |
|
|
* @param {boolean} recurse recursively purge this element's children
|
| 1642 |
|
|
* as well. Use with caution.
|
| 1643 |
|
|
* @param {string} sType optional type of listener to purge. If
|
| 1644 |
|
|
* left out, all listeners will be removed
|
| 1645 |
|
|
* @static
|
| 1646 |
|
|
*/
|
| 1647 |
|
|
purgeElement: function(el, recurse, sType) {
|
| 1648 |
|
|
var oEl = (YAHOO.lang.isString(el)) ? this.getEl(el) : el;
|
| 1649 |
|
|
var elListeners = this.getListeners(oEl, sType), i, len;
|
| 1650 |
|
|
if (elListeners) {
|
| 1651 |
|
|
for (i=0,len=elListeners.length; i<len ; ++i) {
|
| 1652 |
|
|
var l = elListeners[i];
|
| 1653 |
|
|
// can't use the index on the changing collection
|
| 1654 |
|
|
this.removeListener(oEl, l.type, l.fn, l.index);
|
| 1655 |
|
|
//this.removeListener(oEl, l.type, l.fn);
|
| 1656 |
|
|
}
|
| 1657 |
|
|
}
|
| 1658 |
|
|
|
| 1659 |
|
|
if (recurse && oEl && oEl.childNodes) {
|
| 1660 |
|
|
for (i=0,len=oEl.childNodes.length; i<len ; ++i) {
|
| 1661 |
|
|
this.purgeElement(oEl.childNodes[i], recurse, sType);
|
| 1662 |
|
|
}
|
| 1663 |
|
|
}
|
| 1664 |
|
|
},
|
| 1665 |
|
|
|
| 1666 |
|
|
/**
|
| 1667 |
|
|
* Returns all listeners attached to the given element via addListener.
|
| 1668 |
|
|
* Optionally, you can specify a specific type of event to return.
|
| 1669 |
|
|
* @method getListeners
|
| 1670 |
|
|
* @param el {HTMLElement|string} the element or element id to inspect
|
| 1671 |
|
|
* @param sType {string} optional type of listener to return. If
|
| 1672 |
|
|
* left out, all listeners will be returned
|
| 1673 |
|
|
* @return {Object} the listener. Contains the following fields:
|
| 1674 |
|
|
* type: (string) the type of event
|
| 1675 |
|
|
* fn: (function) the callback supplied to addListener
|
| 1676 |
|
|
* obj: (object) the custom object supplied to addListener
|
| 1677 |
|
|
* adjust: (boolean|object) whether or not to adjust the default scope
|
| 1678 |
|
|
* scope: (boolean) the derived scope based on the adjust parameter
|
| 1679 |
|
|
* index: (int) its position in the Event util listener cache
|
| 1680 |
|
|
* @static
|
| 1681 |
|
|
*/
|
| 1682 |
|
|
getListeners: function(el, sType) {
|
| 1683 |
|
|
var results=[], searchLists;
|
| 1684 |
|
|
if (!sType) {
|
| 1685 |
|
|
searchLists = [listeners, unloadListeners];
|
| 1686 |
|
|
} else if (sType === "unload") {
|
| 1687 |
|
|
searchLists = [unloadListeners];
|
| 1688 |
|
|
} else {
|
| 1689 |
|
|
searchLists = [listeners];
|
| 1690 |
|
|
}
|
| 1691 |
|
|
|
| 1692 |
|
|
var oEl = (YAHOO.lang.isString(el)) ? this.getEl(el) : el;
|
| 1693 |
|
|
|
| 1694 |
|
|
for (var j=0;j<searchLists.length; j=j+1) {
|
| 1695 |
|
|
var searchList = searchLists[j];
|
| 1696 |
|
|
if (searchList && searchList.length > 0) {
|
| 1697 |
|
|
for (var i=0,len=searchList.length; i<len ; ++i) {
|
| 1698 |
|
|
var l = searchList[i];
|
| 1699 |
|
|
if ( l && l[this.EL] === oEl &&
|
| 1700 |
|
|
(!sType || sType === l[this.TYPE]) ) {
|
| 1701 |
|
|
results.push({
|
| 1702 |
|
|
type: l[this.TYPE],
|
| 1703 |
|
|
fn: l[this.FN],
|
| 1704 |
|
|
obj: l[this.OBJ],
|
| 1705 |
|
|
adjust: l[this.OVERRIDE],
|
| 1706 |
|
|
scope: l[this.ADJ_SCOPE],
|
| 1707 |
|
|
index: i
|
| 1708 |
|
|
});
|
| 1709 |
|
|
}
|
| 1710 |
|
|
}
|
| 1711 |
|
|
}
|
| 1712 |
|
|
}
|
| 1713 |
|
|
|
| 1714 |
|
|
return (results.length) ? results : null;
|
| 1715 |
|
|
},
|
| 1716 |
|
|
|
| 1717 |
|
|
/**
|
| 1718 |
|
|
* Removes all listeners registered by pe.event. Called
|
| 1719 |
|
|
* automatically during the unload event.
|
| 1720 |
|
|
* @method _unload
|
| 1721 |
|
|
* @static
|
| 1722 |
|
|
* @private
|
| 1723 |
|
|
*/
|
| 1724 |
|
|
_unload: function(e) {
|
| 1725 |
|
|
|
| 1726 |
|
|
var EU = YAHOO.util.Event, i, j, l, len, index;
|
| 1727 |
|
|
|
| 1728 |
|
|
// execute and clear stored unload listeners
|
| 1729 |
|
|
for (i=0,len=unloadListeners.length; i<len; ++i) {
|
| 1730 |
|
|
l = unloadListeners[i];
|
| 1731 |
|
|
if (l) {
|
| 1732 |
|
|
var scope = window;
|
| 1733 |
|
|
if (l[EU.ADJ_SCOPE]) {
|
| 1734 |
|
|
if (l[EU.ADJ_SCOPE] === true) {
|
| 1735 |
|
|
scope = l[EU.UNLOAD_OBJ];
|
| 1736 |
|
|
} else {
|
| 1737 |
|
|
scope = l[EU.ADJ_SCOPE];
|
| 1738 |
|
|
}
|
| 1739 |
|
|
}
|
| 1740 |
|
|
l[EU.FN].call(scope, EU.getEvent(e, l[EU.EL]), l[EU.UNLOAD_OBJ] );
|
| 1741 |
|
|
unloadListeners[i] = null;
|
| 1742 |
|
|
l=null;
|
| 1743 |
|
|
scope=null;
|
| 1744 |
|
|
}
|
| 1745 |
|
|
}
|
| 1746 |
|
|
|
| 1747 |
|
|
unloadListeners = null;
|
| 1748 |
|
|
|
| 1749 |
|
|
// call clearAttributes or remove listeners to handle IE memory leaks
|
| 1750 |
|
|
if (YAHOO.env.ua.ie && listeners && listeners.length > 0) {
|
| 1751 |
|
|
j = listeners.length;
|
| 1752 |
|
|
while (j) {
|
| 1753 |
|
|
index = j-1;
|
| 1754 |
|
|
l = listeners[index];
|
| 1755 |
|
|
if (l) {
|
| 1756 |
|
|
//try {
|
| 1757 |
|
|
//l[EU.EL].clearAttributes(); // errors on window objects
|
| 1758 |
|
|
//} catch(ex) {
|
| 1759 |
|
|
EU.removeListener(l[EU.EL], l[EU.TYPE], l[EU.FN], index);
|
| 1760 |
|
|
//}
|
| 1761 |
|
|
}
|
| 1762 |
|
|
j--;
|
| 1763 |
|
|
}
|
| 1764 |
|
|
l=null;
|
| 1765 |
|
|
}
|
| 1766 |
|
|
|
| 1767 |
|
|
/*
|
| 1768 |
|
|
// remove all listeners
|
| 1769 |
|
|
if (listeners && listeners.length > 0) {
|
| 1770 |
|
|
j = listeners.length;
|
| 1771 |
|
|
while (j) {
|
| 1772 |
|
|
index = j-1;
|
| 1773 |
|
|
l = listeners[index];
|
| 1774 |
|
|
if (l) {
|
| 1775 |
|
|
EU.removeListener(l[EU.EL], l[EU.TYPE], l[EU.FN], index);
|
| 1776 |
|
|
}
|
| 1777 |
|
|
j = j - 1;
|
| 1778 |
|
|
}
|
| 1779 |
|
|
l=null;
|
| 1780 |
|
|
}
|
| 1781 |
|
|
*/
|
| 1782 |
|
|
|
| 1783 |
|
|
/*
|
| 1784 |
|
|
// kill legacy events
|
| 1785 |
|
|
for (i=0,len=legacyEvents.length; i<len; ++i) {
|
| 1786 |
|
|
// dereference the element
|
| 1787 |
|
|
//delete legacyEvents[i][0];
|
| 1788 |
|
|
legacyEvents[i][0] = null;
|
| 1789 |
|
|
|
| 1790 |
|
|
// delete the array item
|
| 1791 |
|
|
//delete legacyEvents[i];
|
| 1792 |
|
|
legacyEvents[i] = null;
|
| 1793 |
|
|
}
|
| 1794 |
|
|
|
| 1795 |
|
|
*/
|
| 1796 |
|
|
|
| 1797 |
|
|
legacyEvents = null;
|
| 1798 |
|
|
|
| 1799 |
|
|
EU._simpleRemove(window, "unload", EU._unload);
|
| 1800 |
|
|
|
| 1801 |
|
|
},
|
| 1802 |
|
|
|
| 1803 |
|
|
/**
|
| 1804 |
|
|
* Returns scrollLeft
|
| 1805 |
|
|
* @method _getScrollLeft
|
| 1806 |
|
|
* @static
|
| 1807 |
|
|
* @private
|
| 1808 |
|
|
*/
|
| 1809 |
|
|
_getScrollLeft: function() {
|
| 1810 |
|
|
return this._getScroll()[1];
|
| 1811 |
|
|
},
|
| 1812 |
|
|
|
| 1813 |
|
|
/**
|
| 1814 |
|
|
* Returns scrollTop
|
| 1815 |
|
|
* @method _getScrollTop
|
| 1816 |
|
|
* @static
|
| 1817 |
|
|
* @private
|
| 1818 |
|
|
*/
|
| 1819 |
|
|
_getScrollTop: function() {
|
| 1820 |
|
|
return this._getScroll()[0];
|
| 1821 |
|
|
},
|
| 1822 |
|
|
|
| 1823 |
|
|
/**
|
| 1824 |
|
|
* Returns the scrollTop and scrollLeft. Used to calculate the
|
| 1825 |
|
|
* pageX and pageY in Internet Explorer
|
| 1826 |
|
|
* @method _getScroll
|
| 1827 |
|
|
* @static
|
| 1828 |
|
|
* @private
|
| 1829 |
|
|
*/
|
| 1830 |
|
|
_getScroll: function() {
|
| 1831 |
|
|
var dd = document.documentElement, db = document.body;
|
| 1832 |
|
|
if (dd && (dd.scrollTop || dd.scrollLeft)) {
|
| 1833 |
|
|
return [dd.scrollTop, dd.scrollLeft];
|
| 1834 |
|
|
} else if (db) {
|
| 1835 |
|
|
return [db.scrollTop, db.scrollLeft];
|
| 1836 |
|
|
} else {
|
| 1837 |
|
|
return [0, 0];
|
| 1838 |
|
|
}
|
| 1839 |
|
|
},
|
| 1840 |
|
|
|
| 1841 |
|
|
/**
|
| 1842 |
|
|
* Used by old versions of CustomEvent, restored for backwards
|
| 1843 |
|
|
* compatibility
|
| 1844 |
|
|
* @method regCE
|
| 1845 |
|
|
* @private
|
| 1846 |
|
|
* @static
|
| 1847 |
|
|
* @deprecated still here for backwards compatibility
|
| 1848 |
|
|
*/
|
| 1849 |
|
|
regCE: function() {
|
| 1850 |
|
|
// does nothing
|
| 1851 |
|
|
},
|
| 1852 |
|
|
|
| 1853 |
|
|
/*
|
| 1854 |
|
|
testIEReady: function (){
|
| 1855 |
|
|
var n = document.createElement('p'), ready = false;
|
| 1856 |
|
|
try {
|
| 1857 |
|
|
// throws an error until the doc is ready
|
| 1858 |
|
|
n.doScroll('left');
|
| 1859 |
|
|
ready = true;
|
| 1860 |
|
|
} catch(ex){
|
| 1861 |
|
|
// document is not ready
|
| 1862 |
|
|
}
|
| 1863 |
|
|
|
| 1864 |
|
|
n = null;
|
| 1865 |
|
|
return ready;
|
| 1866 |
|
|
},
|
| 1867 |
|
|
*/
|
| 1868 |
|
|
|
| 1869 |
|
|
/**
|
| 1870 |
|
|
* Adds a DOM event directly without the caching, cleanup, scope adj, etc
|
| 1871 |
|
|
*
|
| 1872 |
|
|
* @method _simpleAdd
|
| 1873 |
|
|
* @param {HTMLElement} el the element to bind the handler to
|
| 1874 |
|
|
* @param {string} sType the type of event handler
|
| 1875 |
|
|
* @param {function} fn the callback to invoke
|
| 1876 |
|
|
* @param {boolen} capture capture or bubble phase
|
| 1877 |
|
|
* @static
|
| 1878 |
|
|
* @private
|
| 1879 |
|
|
*/
|
| 1880 |
|
|
_simpleAdd: function () {
|
| 1881 |
|
|
if (window.addEventListener) {
|
| 1882 |
|
|
return function(el, sType, fn, capture) {
|
| 1883 |
|
|
el.addEventListener(sType, fn, (capture));
|
| 1884 |
|
|
};
|
| 1885 |
|
|
} else if (window.attachEvent) {
|
| 1886 |
|
|
return function(el, sType, fn, capture) {
|
| 1887 |
|
|
el.attachEvent("on" + sType, fn);
|
| 1888 |
|
|
};
|
| 1889 |
|
|
} else {
|
| 1890 |
|
|
return function(){};
|
| 1891 |
|
|
}
|
| 1892 |
|
|
}(),
|
| 1893 |
|
|
|
| 1894 |
|
|
/**
|
| 1895 |
|
|
* Basic remove listener
|
| 1896 |
|
|
*
|
| 1897 |
|
|
* @method _simpleRemove
|
| 1898 |
|
|
* @param {HTMLElement} el the element to bind the handler to
|
| 1899 |
|
|
* @param {string} sType the type of event handler
|
| 1900 |
|
|
* @param {function} fn the callback to invoke
|
| 1901 |
|
|
* @param {boolen} capture capture or bubble phase
|
| 1902 |
|
|
* @static
|
| 1903 |
|
|
* @private
|
| 1904 |
|
|
*/
|
| 1905 |
|
|
_simpleRemove: function() {
|
| 1906 |
|
|
if (window.removeEventListener) {
|
| 1907 |
|
|
return function (el, sType, fn, capture) {
|
| 1908 |
|
|
el.removeEventListener(sType, fn, (capture));
|
| 1909 |
|
|
};
|
| 1910 |
|
|
} else if (window.detachEvent) {
|
| 1911 |
|
|
return function (el, sType, fn) {
|
| 1912 |
|
|
el.detachEvent("on" + sType, fn);
|
| 1913 |
|
|
};
|
| 1914 |
|
|
} else {
|
| 1915 |
|
|
return function(){};
|
| 1916 |
|
|
}
|
| 1917 |
|
|
}()
|
| 1918 |
|
|
};
|
| 1919 |
|
|
|
| 1920 |
|
|
}();
|
| 1921 |
|
|
|
| 1922 |
|
|
(function() {
|
| 1923 |
|
|
var EU = YAHOO.util.Event;
|
| 1924 |
|
|
|
| 1925 |
|
|
/**
|
| 1926 |
|
|
* YAHOO.util.Event.on is an alias for addListener
|
| 1927 |
|
|
* @method on
|
| 1928 |
|
|
* @see addListener
|
| 1929 |
|
|
* @static
|
| 1930 |
|
|
*/
|
| 1931 |
|
|
EU.on = EU.addListener;
|
| 1932 |
|
|
|
| 1933 |
|
|
/////////////////////////////////////////////////////////////
|
| 1934 |
|
|
// DOMReady
|
| 1935 |
|
|
// based on work by: Dean Edwards/John Resig/Matthias Miller
|
| 1936 |
|
|
|
| 1937 |
|
|
// Internet Explorer: use the readyState of a defered script.
|
| 1938 |
|
|
// This isolates what appears to be a safe moment to manipulate
|
| 1939 |
|
|
// the DOM prior to when the document's readyState suggests
|
| 1940 |
|
|
// it is safe to do so.
|
| 1941 |
|
|
if (EU.isIE) {
|
| 1942 |
|
|
|
| 1943 |
|
|
// Process onAvailable/onContentReady items when when the
|
| 1944 |
|
|
// DOM is ready.
|
| 1945 |
|
|
YAHOO.util.Event.onDOMReady(
|
| 1946 |
|
|
YAHOO.util.Event._tryPreloadAttach,
|
| 1947 |
|
|
YAHOO.util.Event, true);
|
| 1948 |
|
|
|
| 1949 |
|
|
/*
|
| 1950 |
|
|
|
| 1951 |
|
|
|
| 1952 |
|
|
var el, d=document, b=d.body;
|
| 1953 |
|
|
|
| 1954 |
|
|
// If the library is being injected after window.onload, it
|
| 1955 |
|
|
// is not safe to document.write the script tag. Detecting
|
| 1956 |
|
|
// this state doesn't appear possible, so we expect a flag
|
| 1957 |
|
|
// in YAHOO_config to be set if the library is being injected.
|
| 1958 |
|
|
if (("undefined" !== typeof YAHOO_config) && YAHOO_config.injecting) {
|
| 1959 |
|
|
|
| 1960 |
|
|
el = document.createElement("script");
|
| 1961 |
|
|
var p=d.getElementsByTagName("head")[0] || b;
|
| 1962 |
|
|
p.insertBefore(el, p.firstChild);
|
| 1963 |
|
|
|
| 1964 |
|
|
} else {
|
| 1965 |
|
|
d.write('<scr'+'ipt id="_yui_eu_dr" defer="true" src="//:"><'+'/script>');
|
| 1966 |
|
|
el=document.getElementById("_yui_eu_dr");
|
| 1967 |
|
|
}
|
| 1968 |
|
|
|
| 1969 |
|
|
|
| 1970 |
|
|
if (el) {
|
| 1971 |
|
|
el.onreadystatechange = function() {
|
| 1972 |
|
|
if ("complete" === this.readyState) {
|
| 1973 |
|
|
this.parentNode.removeChild(this);
|
| 1974 |
|
|
YAHOO.util.Event._ready();
|
| 1975 |
|
|
}
|
| 1976 |
|
|
};
|
| 1977 |
|
|
} else {
|
| 1978 |
|
|
// The library was likely injected into the page
|
| 1979 |
|
|
// rendering onDOMReady unreliable
|
| 1980 |
|
|
// YAHOO.util.Event._ready();
|
| 1981 |
|
|
}
|
| 1982 |
|
|
|
| 1983 |
|
|
el=null;
|
| 1984 |
|
|
|
| 1985 |
|
|
*/
|
| 1986 |
|
|
|
| 1987 |
|
|
/*
|
| 1988 |
|
|
(function (){
|
| 1989 |
|
|
var n = document.createElement('p');
|
| 1990 |
|
|
try {
|
| 1991 |
|
|
// throws an error if doc is not ready
|
| 1992 |
|
|
n.doScroll('left');
|
| 1993 |
|
|
n = null;
|
| 1994 |
|
|
YAHOO.util.Event._ready();
|
| 1995 |
|
|
} catch (ex){
|
| 1996 |
|
|
n = null;
|
| 1997 |
|
|
setTimeout(arguments.callee, YAHOO.util.Event.POLL_INTERVAL);
|
| 1998 |
|
|
}
|
| 1999 |
|
|
})();
|
| 2000 |
|
|
*/
|
| 2001 |
|
|
|
| 2002 |
|
|
EU._dri = setInterval(function() {
|
| 2003 |
|
|
var n = document.createElement('p');
|
| 2004 |
|
|
try {
|
| 2005 |
|
|
// throws an error if doc is not ready
|
| 2006 |
|
|
n.doScroll('left');
|
| 2007 |
|
|
clearInterval(EU._dri);
|
| 2008 |
|
|
EU._dri = null;
|
| 2009 |
|
|
EU._ready();
|
| 2010 |
|
|
n = null;
|
| 2011 |
|
|
} catch (ex) {
|
| 2012 |
|
|
n = null;
|
| 2013 |
|
|
}
|
| 2014 |
|
|
}, EU.POLL_INTERVAL);
|
| 2015 |
|
|
|
| 2016 |
|
|
|
| 2017 |
|
|
// Safari: The document's readyState in Safari currently will
|
| 2018 |
|
|
// change to loaded/complete before images are loaded.
|
| 2019 |
|
|
//} else if (EU.webkit) {
|
| 2020 |
|
|
} else if (EU.webkit) {
|
| 2021 |
|
|
|
| 2022 |
|
|
EU._dri = setInterval(function() {
|
| 2023 |
|
|
var rs=document.readyState;
|
| 2024 |
|
|
if ("loaded" == rs || "complete" == rs) {
|
| 2025 |
|
|
clearInterval(EU._dri);
|
| 2026 |
|
|
EU._dri = null;
|
| 2027 |
|
|
EU._ready();
|
| 2028 |
|
|
}
|
| 2029 |
|
|
}, EU.POLL_INTERVAL);
|
| 2030 |
|
|
|
| 2031 |
|
|
// FireFox and Opera: These browsers provide a event for this
|
| 2032 |
|
|
// moment.
|
| 2033 |
|
|
} else {
|
| 2034 |
|
|
|
| 2035 |
|
|
// @todo will this fire when the library is injected?
|
| 2036 |
|
|
|
| 2037 |
|
|
EU._simpleAdd(document, "DOMContentLoaded", EU._ready);
|
| 2038 |
|
|
|
| 2039 |
|
|
}
|
| 2040 |
|
|
/////////////////////////////////////////////////////////////
|
| 2041 |
|
|
|
| 2042 |
|
|
|
| 2043 |
|
|
EU._simpleAdd(window, "load", EU._load);
|
| 2044 |
|
|
EU._simpleAdd(window, "unload", EU._unload);
|
| 2045 |
|
|
EU._tryPreloadAttach();
|
| 2046 |
|
|
})();
|
| 2047 |
|
|
|
| 2048 |
|
|
}
|
| 2049 |
|
|
/**
|
| 2050 |
|
|
* EventProvider is designed to be used with YAHOO.augment to wrap
|
| 2051 |
|
|
* CustomEvents in an interface that allows events to be subscribed to
|
| 2052 |
|
|
* and fired by name. This makes it possible for implementing code to
|
| 2053 |
|
|
* subscribe to an event that either has not been created yet, or will
|
| 2054 |
|
|
* not be created at all.
|
| 2055 |
|
|
*
|
| 2056 |
|
|
* @Class EventProvider
|
| 2057 |
|
|
*/
|
| 2058 |
|
|
YAHOO.util.EventProvider = function() { };
|
| 2059 |
|
|
|
| 2060 |
|
|
YAHOO.util.EventProvider.prototype = {
|
| 2061 |
|
|
|
| 2062 |
|
|
/**
|
| 2063 |
|
|
* Private storage of custom events
|
| 2064 |
|
|
* @property __yui_events
|
| 2065 |
|
|
* @type Object[]
|
| 2066 |
|
|
* @private
|
| 2067 |
|
|
*/
|
| 2068 |
|
|
__yui_events: null,
|
| 2069 |
|
|
|
| 2070 |
|
|
/**
|
| 2071 |
|
|
* Private storage of custom event subscribers
|
| 2072 |
|
|
* @property __yui_subscribers
|
| 2073 |
|
|
* @type Object[]
|
| 2074 |
|
|
* @private
|
| 2075 |
|
|
*/
|
| 2076 |
|
|
__yui_subscribers: null,
|
| 2077 |
|
|
|
| 2078 |
|
|
/**
|
| 2079 |
|
|
* Subscribe to a CustomEvent by event type
|
| 2080 |
|
|
*
|
| 2081 |
|
|
* @method subscribe
|
| 2082 |
|
|
* @param p_type {string} the type, or name of the event
|
| 2083 |
|
|
* @param p_fn {function} the function to exectute when the event fires
|
| 2084 |
|
|
* @param p_obj {Object} An object to be passed along when the event
|
| 2085 |
|
|
* fires
|
| 2086 |
|
|
* @param p_override {boolean} If true, the obj passed in becomes the
|
| 2087 |
|
|
* execution scope of the listener
|
| 2088 |
|
|
*/
|
| 2089 |
|
|
subscribe: function(p_type, p_fn, p_obj, p_override) {
|
| 2090 |
|
|
|
| 2091 |
|
|
this.__yui_events = this.__yui_events || {};
|
| 2092 |
|
|
var ce = this.__yui_events[p_type];
|
| 2093 |
|
|
|
| 2094 |
|
|
if (ce) {
|
| 2095 |
|
|
ce.subscribe(p_fn, p_obj, p_override);
|
| 2096 |
|
|
} else {
|
| 2097 |
|
|
this.__yui_subscribers = this.__yui_subscribers || {};
|
| 2098 |
|
|
var subs = this.__yui_subscribers;
|
| 2099 |
|
|
if (!subs[p_type]) {
|
| 2100 |
|
|
subs[p_type] = [];
|
| 2101 |
|
|
}
|
| 2102 |
|
|
subs[p_type].push(
|
| 2103 |
|
|
{ fn: p_fn, obj: p_obj, override: p_override } );
|
| 2104 |
|
|
}
|
| 2105 |
|
|
},
|
| 2106 |
|
|
|
| 2107 |
|
|
/**
|
| 2108 |
|
|
* Unsubscribes one or more listeners the from the specified event
|
| 2109 |
|
|
* @method unsubscribe
|
| 2110 |
|
|
* @param p_type {string} The type, or name of the event. If the type
|
| 2111 |
|
|
* is not specified, it will attempt to remove
|
| 2112 |
|
|
* the listener from all hosted events.
|
| 2113 |
|
|
* @param p_fn {Function} The subscribed function to unsubscribe, if not
|
| 2114 |
|
|
* supplied, all subscribers will be removed.
|
| 2115 |
|
|
* @param p_obj {Object} The custom object passed to subscribe. This is
|
| 2116 |
|
|
* optional, but if supplied will be used to
|
| 2117 |
|
|
* disambiguate multiple listeners that are the same
|
| 2118 |
|
|
* (e.g., you subscribe many object using a function
|
| 2119 |
|
|
* that lives on the prototype)
|
| 2120 |
|
|
* @return {boolean} true if the subscriber was found and detached.
|
| 2121 |
|
|
*/
|
| 2122 |
|
|
unsubscribe: function(p_type, p_fn, p_obj) {
|
| 2123 |
|
|
this.__yui_events = this.__yui_events || {};
|
| 2124 |
|
|
var evts = this.__yui_events;
|
| 2125 |
|
|
if (p_type) {
|
| 2126 |
|
|
var ce = evts[p_type];
|
| 2127 |
|
|
if (ce) {
|
| 2128 |
|
|
return ce.unsubscribe(p_fn, p_obj);
|
| 2129 |
|
|
}
|
| 2130 |
|
|
} else {
|
| 2131 |
|
|
var ret = true;
|
| 2132 |
|
|
for (var i in evts) {
|
| 2133 |
|
|
if (YAHOO.lang.hasOwnProperty(evts, i)) {
|
| 2134 |
|
|
ret = ret && evts[i].unsubscribe(p_fn, p_obj);
|
| 2135 |
|
|
}
|
| 2136 |
|
|
}
|
| 2137 |
|
|
return ret;
|
| 2138 |
|
|
}
|
| 2139 |
|
|
|
| 2140 |
|
|
return false;
|
| 2141 |
|
|
},
|
| 2142 |
|
|
|
| 2143 |
|
|
/**
|
| 2144 |
|
|
* Removes all listeners from the specified event. If the event type
|
| 2145 |
|
|
* is not specified, all listeners from all hosted custom events will
|
| 2146 |
|
|
* be removed.
|
| 2147 |
|
|
* @method unsubscribeAll
|
| 2148 |
|
|
* @param p_type {string} The type, or name of the event
|
| 2149 |
|
|
*/
|
| 2150 |
|
|
unsubscribeAll: function(p_type) {
|
| 2151 |
|
|
return this.unsubscribe(p_type);
|
| 2152 |
|
|
},
|
| 2153 |
|
|
|
| 2154 |
|
|
/**
|
| 2155 |
|
|
* Creates a new custom event of the specified type. If a custom event
|
| 2156 |
|
|
* by that name already exists, it will not be re-created. In either
|
| 2157 |
|
|
* case the custom event is returned.
|
| 2158 |
|
|
*
|
| 2159 |
|
|
* @method createEvent
|
| 2160 |
|
|
*
|
| 2161 |
|
|
* @param p_type {string} the type, or name of the event
|
| 2162 |
|
|
* @param p_config {object} optional config params. Valid properties are:
|
| 2163 |
|
|
*
|
| 2164 |
|
|
* <ul>
|
| 2165 |
|
|
* <li>
|
| 2166 |
|
|
* scope: defines the default execution scope. If not defined
|
| 2167 |
|
|
* the default scope will be this instance.
|
| 2168 |
|
|
* </li>
|
| 2169 |
|
|
* <li>
|
| 2170 |
|
|
* silent: if true, the custom event will not generate log messages.
|
| 2171 |
|
|
* This is false by default.
|
| 2172 |
|
|
* </li>
|
| 2173 |
|
|
* <li>
|
| 2174 |
|
|
* onSubscribeCallback: specifies a callback to execute when the
|
| 2175 |
|
|
* event has a new subscriber. This will fire immediately for
|
| 2176 |
|
|
* each queued subscriber if any exist prior to the creation of
|
| 2177 |
|
|
* the event.
|
| 2178 |
|
|
* </li>
|
| 2179 |
|
|
* </ul>
|
| 2180 |
|
|
*
|
| 2181 |
|
|
* @return {CustomEvent} the custom event
|
| 2182 |
|
|
*
|
| 2183 |
|
|
*/
|
| 2184 |
|
|
createEvent: function(p_type, p_config) {
|
| 2185 |
|
|
|
| 2186 |
|
|
this.__yui_events = this.__yui_events || {};
|
| 2187 |
|
|
var opts = p_config || {};
|
| 2188 |
|
|
var events = this.__yui_events;
|
| 2189 |
|
|
|
| 2190 |
|
|
if (events[p_type]) {
|
| 2191 |
|
|
} else {
|
| 2192 |
|
|
|
| 2193 |
|
|
var scope = opts.scope || this;
|
| 2194 |
|
|
var silent = (opts.silent);
|
| 2195 |
|
|
|
| 2196 |
|
|
var ce = new YAHOO.util.CustomEvent(p_type, scope, silent,
|
| 2197 |
|
|
YAHOO.util.CustomEvent.FLAT);
|
| 2198 |
|
|
events[p_type] = ce;
|
| 2199 |
|
|
|
| 2200 |
|
|
if (opts.onSubscribeCallback) {
|
| 2201 |
|
|
ce.subscribeEvent.subscribe(opts.onSubscribeCallback);
|
| 2202 |
|
|
}
|
| 2203 |
|
|
|
| 2204 |
|
|
this.__yui_subscribers = this.__yui_subscribers || {};
|
| 2205 |
|
|
var qs = this.__yui_subscribers[p_type];
|
| 2206 |
|
|
|
| 2207 |
|
|
if (qs) {
|
| 2208 |
|
|
for (var i=0; i<qs.length; ++i) {
|
| 2209 |
|
|
ce.subscribe(qs[i].fn, qs[i].obj, qs[i].override);
|
| 2210 |
|
|
}
|
| 2211 |
|
|
}
|
| 2212 |
|
|
}
|
| 2213 |
|
|
|
| 2214 |
|
|
return events[p_type];
|
| 2215 |
|
|
},
|
| 2216 |
|
|
|
| 2217 |
|
|
|
| 2218 |
|
|
/**
|
| 2219 |
|
|
* Fire a custom event by name. The callback functions will be executed
|
| 2220 |
|
|
* from the scope specified when the event was created, and with the
|
| 2221 |
|
|
* following parameters:
|
| 2222 |
|
|
* <ul>
|
| 2223 |
|
|
* <li>The first argument fire() was executed with</li>
|
| 2224 |
|
|
* <li>The custom object (if any) that was passed into the subscribe()
|
| 2225 |
|
|
* method</li>
|
| 2226 |
|
|
* </ul>
|
| 2227 |
|
|
* If the custom event has not been explicitly created, it will be
|
| 2228 |
|
|
* created now with the default config, scoped to the host object
|
| 2229 |
|
|
* @method fireEvent
|
| 2230 |
|
|
* @param p_type {string} the type, or name of the event
|
| 2231 |
|
|
* @param arguments {Object*} an arbitrary set of parameters to pass to
|
| 2232 |
|
|
* the handler.
|
| 2233 |
|
|
* @return {boolean} the return value from CustomEvent.fire
|
| 2234 |
|
|
*
|
| 2235 |
|
|
*/
|
| 2236 |
|
|
fireEvent: function(p_type, arg1, arg2, etc) {
|
| 2237 |
|
|
|
| 2238 |
|
|
this.__yui_events = this.__yui_events || {};
|
| 2239 |
|
|
var ce = this.__yui_events[p_type];
|
| 2240 |
|
|
|
| 2241 |
|
|
if (!ce) {
|
| 2242 |
|
|
return null;
|
| 2243 |
|
|
}
|
| 2244 |
|
|
|
| 2245 |
|
|
var args = [];
|
| 2246 |
|
|
for (var i=1; i<arguments.length; ++i) {
|
| 2247 |
|
|
args.push(arguments[i]);
|
| 2248 |
|
|
}
|
| 2249 |
|
|
return ce.fire.apply(ce, args);
|
| 2250 |
|
|
},
|
| 2251 |
|
|
|
| 2252 |
|
|
/**
|
| 2253 |
|
|
* Returns true if the custom event of the provided type has been created
|
| 2254 |
|
|
* with createEvent.
|
| 2255 |
|
|
* @method hasEvent
|
| 2256 |
|
|
* @param type {string} the type, or name of the event
|
| 2257 |
|
|
*/
|
| 2258 |
|
|
hasEvent: function(type) {
|
| 2259 |
|
|
if (this.__yui_events) {
|
| 2260 |
|
|
if (this.__yui_events[type]) {
|
| 2261 |
|
|
return true;
|
| 2262 |
|
|
}
|
| 2263 |
|
|
}
|
| 2264 |
|
|
return false;
|
| 2265 |
|
|
}
|
| 2266 |
|
|
|
| 2267 |
|
|
};
|
| 2268 |
|
|
|
| 2269 |
|
|
/**
|
| 2270 |
|
|
* KeyListener is a utility that provides an easy interface for listening for
|
| 2271 |
|
|
* keydown/keyup events fired against DOM elements.
|
| 2272 |
|
|
* @namespace YAHOO.util
|
| 2273 |
|
|
* @class KeyListener
|
| 2274 |
|
|
* @constructor
|
| 2275 |
|
|
* @param {HTMLElement} attachTo The element or element ID to which the key
|
| 2276 |
|
|
* event should be attached
|
| 2277 |
|
|
* @param {String} attachTo The element or element ID to which the key
|
| 2278 |
|
|
* event should be attached
|
| 2279 |
|
|
* @param {Object} keyData The object literal representing the key(s)
|
| 2280 |
|
|
* to detect. Possible attributes are
|
| 2281 |
|
|
* shift(boolean), alt(boolean), ctrl(boolean)
|
| 2282 |
|
|
* and keys(either an int or an array of ints
|
| 2283 |
|
|
* representing keycodes).
|
| 2284 |
|
|
* @param {Function} handler The CustomEvent handler to fire when the
|
| 2285 |
|
|
* key event is detected
|
| 2286 |
|
|
* @param {Object} handler An object literal representing the handler.
|
| 2287 |
|
|
* @param {String} event Optional. The event (keydown or keyup) to
|
| 2288 |
|
|
* listen for. Defaults automatically to keydown.
|
| 2289 |
|
|
*
|
| 2290 |
|
|
* @knownissue the "keypress" event is completely broken in Safari 2.x and below.
|
| 2291 |
|
|
* the workaround is use "keydown" for key listening. However, if
|
| 2292 |
|
|
* it is desired to prevent the default behavior of the keystroke,
|
| 2293 |
|
|
* that can only be done on the keypress event. This makes key
|
| 2294 |
|
|
* handling quite ugly.
|
| 2295 |
|
|
* @knownissue keydown is also broken in Safari 2.x and below for the ESC key.
|
| 2296 |
|
|
* There currently is no workaround other than choosing another
|
| 2297 |
|
|
* key to listen for.
|
| 2298 |
|
|
*/
|
| 2299 |
|
|
YAHOO.util.KeyListener = function(attachTo, keyData, handler, event) {
|
| 2300 |
|
|
if (!attachTo) {
|
| 2301 |
|
|
} else if (!keyData) {
|
| 2302 |
|
|
} else if (!handler) {
|
| 2303 |
|
|
}
|
| 2304 |
|
|
|
| 2305 |
|
|
if (!event) {
|
| 2306 |
|
|
event = YAHOO.util.KeyListener.KEYDOWN;
|
| 2307 |
|
|
}
|
| 2308 |
|
|
|
| 2309 |
|
|
/**
|
| 2310 |
|
|
* The CustomEvent fired internally when a key is pressed
|
| 2311 |
|
|
* @event keyEvent
|
| 2312 |
|
|
* @private
|
| 2313 |
|
|
* @param {Object} keyData The object literal representing the key(s) to
|
| 2314 |
|
|
* detect. Possible attributes are shift(boolean),
|
| 2315 |
|
|
* alt(boolean), ctrl(boolean) and keys(either an
|
| 2316 |
|
|
* int or an array of ints representing keycodes).
|
| 2317 |
|
|
*/
|
| 2318 |
|
|
var keyEvent = new YAHOO.util.CustomEvent("keyPressed");
|
| 2319 |
|
|
|
| 2320 |
|
|
/**
|
| 2321 |
|
|
* The CustomEvent fired when the KeyListener is enabled via the enable()
|
| 2322 |
|
|
* function
|
| 2323 |
|
|
* @event enabledEvent
|
| 2324 |
|
|
* @param {Object} keyData The object literal representing the key(s) to
|
| 2325 |
|
|
* detect. Possible attributes are shift(boolean),
|
| 2326 |
|
|
* alt(boolean), ctrl(boolean) and keys(either an
|
| 2327 |
|
|
* int or an array of ints representing keycodes).
|
| 2328 |
|
|
*/
|
| 2329 |
|
|
this.enabledEvent = new YAHOO.util.CustomEvent("enabled");
|
| 2330 |
|
|
|
| 2331 |
|
|
/**
|
| 2332 |
|
|
* The CustomEvent fired when the KeyListener is disabled via the
|
| 2333 |
|
|
* disable() function
|
| 2334 |
|
|
* @event disabledEvent
|
| 2335 |
|
|
* @param {Object} keyData The object literal representing the key(s) to
|
| 2336 |
|
|
* detect. Possible attributes are shift(boolean),
|
| 2337 |
|
|
* alt(boolean), ctrl(boolean) and keys(either an
|
| 2338 |
|
|
* int or an array of ints representing keycodes).
|
| 2339 |
|
|
*/
|
| 2340 |
|
|
this.disabledEvent = new YAHOO.util.CustomEvent("disabled");
|
| 2341 |
|
|
|
| 2342 |
|
|
if (typeof attachTo == 'string') {
|
| 2343 |
|
|
attachTo = document.getElementById(attachTo);
|
| 2344 |
|
|
}
|
| 2345 |
|
|
|
| 2346 |
|
|
if (typeof handler == 'function') {
|
| 2347 |
|
|
keyEvent.subscribe(handler);
|
| 2348 |
|
|
} else {
|
| 2349 |
|
|
keyEvent.subscribe(handler.fn, handler.scope, handler.correctScope);
|
| 2350 |
|
|
}
|
| 2351 |
|
|
|
| 2352 |
|
|
/**
|
| 2353 |
|
|
* Handles the key event when a key is pressed.
|
| 2354 |
|
|
* @method handleKeyPress
|
| 2355 |
|
|
* @param {DOMEvent} e The keypress DOM event
|
| 2356 |
|
|
* @param {Object} obj The DOM event scope object
|
| 2357 |
|
|
* @private
|
| 2358 |
|
|
*/
|
| 2359 |
|
|
function handleKeyPress(e, obj) {
|
| 2360 |
|
|
if (! keyData.shift) {
|
| 2361 |
|
|
keyData.shift = false;
|
| 2362 |
|
|
}
|
| 2363 |
|
|
if (! keyData.alt) {
|
| 2364 |
|
|
keyData.alt = false;
|
| 2365 |
|
|
}
|
| 2366 |
|
|
if (! keyData.ctrl) {
|
| 2367 |
|
|
keyData.ctrl = false;
|
| 2368 |
|
|
}
|
| 2369 |
|
|
|
| 2370 |
|
|
// check held down modifying keys first
|
| 2371 |
|
|
if (e.shiftKey == keyData.shift &&
|
| 2372 |
|
|
e.altKey == keyData.alt &&
|
| 2373 |
|
|
e.ctrlKey == keyData.ctrl) { // if we pass this, all modifiers match
|
| 2374 |
|
|
|
| 2375 |
|
|
var dataItem;
|
| 2376 |
|
|
|
| 2377 |
|
|
if (keyData.keys instanceof Array) {
|
| 2378 |
|
|
for (var i=0;i<keyData.keys.length;i++) {
|
| 2379 |
|
|
dataItem = keyData.keys[i];
|
| 2380 |
|
|
|
| 2381 |
|
|
if (dataItem == e.charCode ) {
|
| 2382 |
|
|
keyEvent.fire(e.charCode, e);
|
| 2383 |
|
|
break;
|
| 2384 |
|
|
} else if (dataItem == e.keyCode) {
|
| 2385 |
|
|
keyEvent.fire(e.keyCode, e);
|
| 2386 |
|
|
break;
|
| 2387 |
|
|
}
|
| 2388 |
|
|
}
|
| 2389 |
|
|
} else {
|
| 2390 |
|
|
dataItem = keyData.keys;
|
| 2391 |
|
|
if (dataItem == e.charCode ) {
|
| 2392 |
|
|
keyEvent.fire(e.charCode, e);
|
| 2393 |
|
|
} else if (dataItem == e.keyCode) {
|
| 2394 |
|
|
keyEvent.fire(e.keyCode, e);
|
| 2395 |
|
|
}
|
| 2396 |
|
|
}
|
| 2397 |
|
|
}
|
| 2398 |
|
|
}
|
| 2399 |
|
|
|
| 2400 |
|
|
/**
|
| 2401 |
|
|
* Enables the KeyListener by attaching the DOM event listeners to the
|
| 2402 |
|
|
* target DOM element
|
| 2403 |
|
|
* @method enable
|
| 2404 |
|
|
*/
|
| 2405 |
|
|
this.enable = function() {
|
| 2406 |
|
|
if (! this.enabled) {
|
| 2407 |
|
|
YAHOO.util.Event.addListener(attachTo, event, handleKeyPress);
|
| 2408 |
|
|
this.enabledEvent.fire(keyData);
|
| 2409 |
|
|
}
|
| 2410 |
|
|
/**
|
| 2411 |
|
|
* Boolean indicating the enabled/disabled state of the Tooltip
|
| 2412 |
|
|
* @property enabled
|
| 2413 |
|
|
* @type Boolean
|
| 2414 |
|
|
*/
|
| 2415 |
|
|
this.enabled = true;
|
| 2416 |
|
|
};
|
| 2417 |
|
|
|
| 2418 |
|
|
/**
|
| 2419 |
|
|
* Disables the KeyListener by removing the DOM event listeners from the
|
| 2420 |
|
|
* target DOM element
|
| 2421 |
|
|
* @method disable
|
| 2422 |
|
|
*/
|
| 2423 |
|
|
this.disable = function() {
|
| 2424 |
|
|
if (this.enabled) {
|
| 2425 |
|
|
YAHOO.util.Event.removeListener(attachTo, event, handleKeyPress);
|
| 2426 |
|
|
this.disabledEvent.fire(keyData);
|
| 2427 |
|
|
}
|
| 2428 |
|
|
this.enabled = false;
|
| 2429 |
|
|
};
|
| 2430 |
|
|
|
| 2431 |
|
|
/**
|
| 2432 |
|
|
* Returns a String representation of the object.
|
| 2433 |
|
|
* @method toString
|
| 2434 |
|
|
* @return {String} The string representation of the KeyListener
|
| 2435 |
|
|
*/
|
| 2436 |
|
|
this.toString = function() {
|
| 2437 |
|
|
return "KeyListener [" + keyData.keys + "] " + attachTo.tagName +
|
| 2438 |
|
|
(attachTo.id ? "[" + attachTo.id + "]" : "");
|
| 2439 |
|
|
};
|
| 2440 |
|
|
|
| 2441 |
|
|
};
|
| 2442 |
|
|
|
| 2443 |
|
|
/**
|
| 2444 |
|
|
* Constant representing the DOM "keydown" event.
|
| 2445 |
|
|
* @property YAHOO.util.KeyListener.KEYDOWN
|
| 2446 |
|
|
* @static
|
| 2447 |
|
|
* @final
|
| 2448 |
|
|
* @type String
|
| 2449 |
|
|
*/
|
| 2450 |
|
|
YAHOO.util.KeyListener.KEYDOWN = "keydown";
|
| 2451 |
|
|
|
| 2452 |
|
|
/**
|
| 2453 |
|
|
* Constant representing the DOM "keyup" event.
|
| 2454 |
|
|
* @property YAHOO.util.KeyListener.KEYUP
|
| 2455 |
|
|
* @static
|
| 2456 |
|
|
* @final
|
| 2457 |
|
|
* @type String
|
| 2458 |
|
|
*/
|
| 2459 |
|
|
YAHOO.util.KeyListener.KEYUP = "keyup";
|
| 2460 |
|
|
|
| 2461 |
|
|
/**
|
| 2462 |
|
|
* keycode constants for a subset of the special keys
|
| 2463 |
|
|
* @property KEY
|
| 2464 |
|
|
* @static
|
| 2465 |
|
|
* @final
|
| 2466 |
|
|
*/
|
| 2467 |
|
|
YAHOO.util.KeyListener.KEY = {
|
| 2468 |
|
|
ALT : 18,
|
| 2469 |
|
|
BACK_SPACE : 8,
|
| 2470 |
|
|
CAPS_LOCK : 20,
|
| 2471 |
|
|
CONTROL : 17,
|
| 2472 |
|
|
DELETE : 46,
|
| 2473 |
|
|
DOWN : 40,
|
| 2474 |
|
|
END : 35,
|
| 2475 |
|
|
ENTER : 13,
|
| 2476 |
|
|
ESCAPE : 27,
|
| 2477 |
|
|
HOME : 36,
|
| 2478 |
|
|
LEFT : 37,
|
| 2479 |
|
|
META : 224,
|
| 2480 |
|
|
NUM_LOCK : 144,
|
| 2481 |
|
|
PAGE_DOWN : 34,
|
| 2482 |
|
|
PAGE_UP : 33,
|
| 2483 |
|
|
PAUSE : 19,
|
| 2484 |
|
|
PRINTSCREEN : 44,
|
| 2485 |
|
|
RIGHT : 39,
|
| 2486 |
|
|
SCROLL_LOCK : 145,
|
| 2487 |
|
|
SHIFT : 16,
|
| 2488 |
|
|
SPACE : 32,
|
| 2489 |
|
|
TAB : 9,
|
| 2490 |
|
|
UP : 38
|
| 2491 |
|
|
};
|
| 2492 |
|
|
YAHOO.register("event", YAHOO.util.Event, {version: "2.4.1", build: "742"});
|