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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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YAHOO.log( "Creating " + this, "info", "Event" );
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}
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var onsubscribeType = "_YUICEOnSubscribe";
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// Only add subscribe events for events that are not generated by
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// CustomEvent
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if (type !== onsubscribeType) {
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/**
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* Custom events provide a custom event that fires whenever there is
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* a new subscriber to the event. This provides an opportunity to
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* handle the case where there is a non-repeating event that has
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* already fired has a new subscriber.
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*
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* @event subscribeEvent
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* @type YAHOO.util.CustomEvent
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* @param {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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YAHOO.log( "Firing " + this + ", " +
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"args: " + args + ", " +
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"subscribers: " + len,
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"info", "Event" );
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}
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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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YAHOO.log( this.type + "->" + (i+1) + ": " + s,
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"info", "Event" );
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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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YAHOO.log(this + " subscriber exception: " + e,
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"error", "Event");
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}
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261
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} else {
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262
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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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265
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this.lastError = ex;
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266
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YAHOO.log(this + " subscriber exception: " + ex,
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267
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"error", "Event");
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268
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}
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269
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}
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270
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if (false === ret) {
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271
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if (!this.silent) {
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272
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YAHOO.log("Event cancelled, subscriber " + i +
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273
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" of " + len, "info", "Event");
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274
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}
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275
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276
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//break;
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277
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return false;
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278
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}
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279
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}
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280
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}
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281
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282
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if (rebuild) {
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283
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var newlist=[],subs=this.subscribers;
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284
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for (i=0,len=subs.length; i<len; i=i+1) {
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285
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newlist.push(subs[i]);
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286
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}
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287
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288
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this.subscribers=newlist;
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289
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}
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290
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291
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return true;
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292
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},
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293
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294
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/**
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295
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* Removes all listeners
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296
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* @method unsubscribeAll
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297
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* @return {int} The number of listeners unsubscribed
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298
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*/
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299
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unsubscribeAll: function() {
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300
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for (var i=0, len=this.subscribers.length; i<len; ++i) {
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301
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this._delete(len - 1 - i);
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302
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}
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303
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304
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this.subscribers=[];
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305
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306
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return i;
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|
307
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},
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308
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309
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/**
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310
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* @method _delete
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311
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* @private
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312
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*/
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313
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_delete: function(index) {
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314
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var s = this.subscribers[index];
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315
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if (s) {
|
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316
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delete s.fn;
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317
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delete s.obj;
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318
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}
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319
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320
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this.subscribers[index]=null;
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321
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},
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322
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|
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323
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/**
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|
324
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* @method toString
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325
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*/
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326
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toString: function() {
|
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327
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return "CustomEvent: " + "'" + this.type + "', " +
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328
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"scope: " + this.scope;
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329
|
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330
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}
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|
331
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};
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|
332
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|
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333
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/////////////////////////////////////////////////////////////////////
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|
334
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|
|
335
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/**
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|
336
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* Stores the subscriber information to be used when the event fires.
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337
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* @param {Function} fn The function to execute
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338
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* @param {Object} obj An object to be passed along when the event fires
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339
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* @param {boolean} override If true, the obj passed in becomes the execution
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340
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* scope of the listener
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|
341
|
* @class Subscriber
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|
342
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* @constructor
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|
343
|
*/
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|
344
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YAHOO.util.Subscriber = function(fn, obj, override) {
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|
345
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346
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/**
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347
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* The callback that will be execute when the event fires
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348
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* @property fn
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|
349
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* @type function
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|
350
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*/
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|
351
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this.fn = fn;
|
|
352
|
|
|
353
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/**
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|
354
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* An optional custom object that will passed to the callback when
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355
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* the event fires
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|
356
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* @property obj
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|
357
|
* @type object
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|
358
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*/
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|
359
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this.obj = YAHOO.lang.isUndefined(obj) ? null : obj;
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|
360
|
|
|
361
|
/**
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|
362
|
* The default execution scope for the event listener is defined when the
|
|
363
|
* event is created (usually the object which contains the event).
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|
364
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* By setting override to true, the execution scope becomes the custom
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|
365
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* object passed in by the subscriber. If override is an object, that
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|
366
|
* object becomes the scope.
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|
367
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* @property override
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|
368
|
* @type boolean|object
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|
369
|
*/
|
|
370
|
this.override = override;
|
|
371
|
|
|
372
|
};
|
|
373
|
|
|
374
|
/**
|
|
375
|
* Returns the execution scope for this listener. If override was set to true
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|
376
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* the custom obj will be the scope. If override is an object, that is the
|
|
377
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* scope, otherwise the default scope will be used.
|
|
378
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* @method getScope
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|
379
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* @param {Object} defaultScope the scope to use if this listener does not
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|
380
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* override it.
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|
381
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*/
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|
382
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YAHOO.util.Subscriber.prototype.getScope = function(defaultScope) {
|
|
383
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if (this.override) {
|
|
384
|
if (this.override === true) {
|
|
385
|
return this.obj;
|
|
386
|
} else {
|
|
387
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return this.override;
|
|
388
|
}
|
|
389
|
}
|
|
390
|
return defaultScope;
|
|
391
|
};
|
|
392
|
|
|
393
|
/**
|
|
394
|
* Returns true if the fn and obj match this objects properties.
|
|
395
|
* Used by the unsubscribe method to match the right subscriber.
|
|
396
|
*
|
|
397
|
* @method contains
|
|
398
|
* @param {Function} fn the function to execute
|
|
399
|
* @param {Object} obj an object to be passed along when the event fires
|
|
400
|
* @return {boolean} true if the supplied arguments match this
|
|
401
|
* subscriber's signature.
|
|
402
|
*/
|
|
403
|
YAHOO.util.Subscriber.prototype.contains = function(fn, obj) {
|
|
404
|
if (obj) {
|
|
405
|
return (this.fn == fn && this.obj == obj);
|
|
406
|
} else {
|
|
407
|
return (this.fn == fn);
|
|
408
|
}
|
|
409
|
};
|
|
410
|
|
|
411
|
/**
|
|
412
|
* @method toString
|
|
413
|
*/
|
|
414
|
YAHOO.util.Subscriber.prototype.toString = function() {
|
|
415
|
return "Subscriber { obj: " + this.obj +
|
|
416
|
", override: " + (this.override || "no") + " }";
|
|
417
|
};
|
|
418
|
|
|
419
|
/**
|
|
420
|
* The Event Utility provides utilities for managing DOM Events and tools
|
|
421
|
* for building event systems
|
|
422
|
*
|
|
423
|
* @module event
|
|
424
|
* @title Event Utility
|
|
425
|
* @namespace YAHOO.util
|
|
426
|
* @requires yahoo
|
|
427
|
*/
|
|
428
|
|
|
429
|
// The first instance of Event will win if it is loaded more than once.
|
|
430
|
// @TODO this needs to be changed so that only the state data that needs to
|
|
431
|
// be preserved is kept, while methods are overwritten/added as needed.
|
|
432
|
// This means that the module pattern can't be used.
|
|
433
|
if (!YAHOO.util.Event) {
|
|
434
|
|
|
435
|
/**
|
|
436
|
* The event utility provides functions to add and remove event listeners,
|
|
437
|
* event cleansing. It also tries to automatically remove listeners it
|
|
438
|
* registers during the unload event.
|
|
439
|
*
|
|
440
|
* @class Event
|
|
441
|
* @static
|
|
442
|
*/
|
|
443
|
YAHOO.util.Event = function() {
|
|
444
|
|
|
445
|
/**
|
|
446
|
* True after the onload event has fired
|
|
447
|
* @property loadComplete
|
|
448
|
* @type boolean
|
|
449
|
* @static
|
|
450
|
* @private
|
|
451
|
*/
|
|
452
|
var loadComplete = false;
|
|
453
|
|
|
454
|
/**
|
|
455
|
* Cache of wrapped listeners
|
|
456
|
* @property listeners
|
|
457
|
* @type array
|
|
458
|
* @static
|
|
459
|
* @private
|
|
460
|
*/
|
|
461
|
var listeners = [];
|
|
462
|
|
|
463
|
/**
|
|
464
|
* User-defined unload function that will be fired before all events
|
|
465
|
* are detached
|
|
466
|
* @property unloadListeners
|
|
467
|
* @type array
|
|
468
|
* @static
|
|
469
|
* @private
|
|
470
|
*/
|
|
471
|
var unloadListeners = [];
|
|
472
|
|
|
473
|
/**
|
|
474
|
* Cache of DOM0 event handlers to work around issues with DOM2 events
|
|
475
|
* in Safari
|
|
476
|
* @property legacyEvents
|
|
477
|
* @static
|
|
478
|
* @private
|
|
479
|
*/
|
|
480
|
var legacyEvents = [];
|
|
481
|
|
|
482
|
/**
|
|
483
|
* Listener stack for DOM0 events
|
|
484
|
* @property legacyHandlers
|
|
485
|
* @static
|
|
486
|
* @private
|
|
487
|
*/
|
|
488
|
var legacyHandlers = [];
|
|
489
|
|
|
490
|
/**
|
|
491
|
* The number of times to poll after window.onload. This number is
|
|
492
|
* increased if additional late-bound handlers are requested after
|
|
493
|
* the page load.
|
|
494
|
* @property retryCount
|
|
495
|
* @static
|
|
496
|
* @private
|
|
497
|
*/
|
|
498
|
var retryCount = 0;
|
|
499
|
|
|
500
|
/**
|
|
501
|
* onAvailable listeners
|
|
502
|
* @property onAvailStack
|
|
503
|
* @static
|
|
504
|
* @private
|
|
505
|
*/
|
|
506
|
var onAvailStack = [];
|
|
507
|
|
|
508
|
/**
|
|
509
|
* Lookup table for legacy events
|
|
510
|
* @property legacyMap
|
|
511
|
* @static
|
|
512
|
* @private
|
|
513
|
*/
|
|
514
|
var legacyMap = [];
|
|
515
|
|
|
516
|
/**
|
|
517
|
* Counter for auto id generation
|
|
518
|
* @property counter
|
|
519
|
* @static
|
|
520
|
* @private
|
|
521
|
*/
|
|
522
|
var counter = 0;
|
|
523
|
|
|
524
|
/**
|
|
525
|
* Normalized keycodes for webkit/safari
|
|
526
|
* @property webkitKeymap
|
|
527
|
* @type {int: int}
|
|
528
|
* @private
|
|
529
|
* @static
|
|
530
|
* @final
|
|
531
|
*/
|
|
532
|
var webkitKeymap = {
|
|
533
|
63232: 38, // up
|
|
534
|
63233: 40, // down
|
|
535
|
63234: 37, // left
|
|
536
|
63235: 39, // right
|
|
537
|
63276: 33, // page up
|
|
538
|
63277: 34, // page down
|
|
539
|
25: 9 // SHIFT-TAB (Safari provides a different key code in
|
|
540
|
// this case, even though the shiftKey modifier is set)
|
|
541
|
};
|
|
542
|
|
|
543
|
return {
|
|
544
|
|
|
545
|
/**
|
|
546
|
* The number of times we should look for elements that are not
|
|
547
|
* in the DOM at the time the event is requested after the document
|
|
548
|
* has been loaded. The default is 4000@amp;10 ms, so it will poll
|
|
549
|
* for 40 seconds or until all outstanding handlers are bound
|
|
550
|
* (whichever comes first).
|
|
551
|
* @property POLL_RETRYS
|
|
552
|
* @type int
|
|
553
|
* @static
|
|
554
|
* @final
|
|
555
|
*/
|
|
556
|
POLL_RETRYS: 4000,
|
|
557
|
|
|
558
|
/**
|
|
559
|
* The poll interval in milliseconds
|
|
560
|
* @property POLL_INTERVAL
|
|
561
|
* @type int
|
|
562
|
* @static
|
|
563
|
* @final
|
|
564
|
*/
|
|
565
|
POLL_INTERVAL: 10,
|
|
566
|
|
|
567
|
/**
|
|
568
|
* Element to bind, int constant
|
|
569
|
* @property EL
|
|
570
|
* @type int
|
|
571
|
* @static
|
|
572
|
* @final
|
|
573
|
*/
|
|
574
|
EL: 0,
|
|
575
|
|
|
576
|
/**
|
|
577
|
* Type of event, int constant
|
|
578
|
* @property TYPE
|
|
579
|
* @type int
|
|
580
|
* @static
|
|
581
|
* @final
|
|
582
|
*/
|
|
583
|
TYPE: 1,
|
|
584
|
|
|
585
|
/**
|
|
586
|
* Function to execute, int constant
|
|
587
|
* @property FN
|
|
588
|
* @type int
|
|
589
|
* @static
|
|
590
|
* @final
|
|
591
|
*/
|
|
592
|
FN: 2,
|
|
593
|
|
|
594
|
/**
|
|
595
|
* Function wrapped for scope correction and cleanup, int constant
|
|
596
|
* @property WFN
|
|
597
|
* @type int
|
|
598
|
* @static
|
|
599
|
* @final
|
|
600
|
*/
|
|
601
|
WFN: 3,
|
|
602
|
|
|
603
|
/**
|
|
604
|
* Object passed in by the user that will be returned as a
|
|
605
|
* parameter to the callback, int constant. Specific to
|
|
606
|
* unload listeners
|
|
607
|
* @property OBJ
|
|
608
|
* @type int
|
|
609
|
* @static
|
|
610
|
* @final
|
|
611
|
*/
|
|
612
|
UNLOAD_OBJ: 3,
|
|
613
|
|
|
614
|
/**
|
|
615
|
* Adjusted scope, either the element we are registering the event
|
|
616
|
* on or the custom object passed in by the listener, int constant
|
|
617
|
* @property ADJ_SCOPE
|
|
618
|
* @type int
|
|
619
|
* @static
|
|
620
|
* @final
|
|
621
|
*/
|
|
622
|
ADJ_SCOPE: 4,
|
|
623
|
|
|
624
|
/**
|
|
625
|
* The original obj passed into addListener
|
|
626
|
* @property OBJ
|
|
627
|
* @type int
|
|
628
|
* @static
|
|
629
|
* @final
|
|
630
|
*/
|
|
631
|
OBJ: 5,
|
|
632
|
|
|
633
|
/**
|
|
634
|
* The original scope parameter passed into addListener
|
|
635
|
* @property OVERRIDE
|
|
636
|
* @type int
|
|
637
|
* @static
|
|
638
|
* @final
|
|
639
|
*/
|
|
640
|
OVERRIDE: 6,
|
|
641
|
|
|
642
|
/**
|
|
643
|
* addListener/removeListener can throw errors in unexpected scenarios.
|
|
644
|
* These errors are suppressed, the method returns false, and this property
|
|
645
|
* is set
|
|
646
|
* @property lastError
|
|
647
|
* @static
|
|
648
|
* @type Error
|
|
649
|
*/
|
|
650
|
lastError: null,
|
|
651
|
|
|
652
|
/**
|
|
653
|
* Safari detection
|
|
654
|
* @property isSafari
|
|
655
|
* @private
|
|
656
|
* @static
|
|
657
|
* @deprecated use YAHOO.env.ua.webkit
|
|
658
|
*/
|
|
659
|
isSafari: YAHOO.env.ua.webkit,
|
|
660
|
|
|
661
|
/**
|
|
662
|
* webkit version
|
|
663
|
* @property webkit
|
|
664
|
* @type string
|
|
665
|
* @private
|
|
666
|
* @static
|
|
667
|
* @deprecated use YAHOO.env.ua.webkit
|
|
668
|
*/
|
|
669
|
webkit: YAHOO.env.ua.webkit,
|
|
670
|
|
|
671
|
/**
|
|
672
|
* IE detection
|
|
673
|
* @property isIE
|
|
674
|
* @private
|
|
675
|
* @static
|
|
676
|
* @deprecated use YAHOO.env.ua.ie
|
|
677
|
*/
|
|
678
|
isIE: YAHOO.env.ua.ie,
|
|
679
|
|
|
680
|
/**
|
|
681
|
* poll handle
|
|
682
|
* @property _interval
|
|
683
|
* @static
|
|
684
|
* @private
|
|
685
|
*/
|
|
686
|
_interval: null,
|
|
687
|
|
|
688
|
/**
|
|
689
|
* document readystate poll handle
|
|
690
|
* @property _dri
|
|
691
|
* @static
|
|
692
|
* @private
|
|
693
|
*/
|
|
694
|
_dri: null,
|
|
695
|
|
|
696
|
/**
|
|
697
|
* True when the document is initially usable
|
|
698
|
* @property DOMReady
|
|
699
|
* @type boolean
|
|
700
|
* @static
|
|
701
|
*/
|
|
702
|
DOMReady: false,
|
|
703
|
|
|
704
|
/**
|
|
705
|
* @method startInterval
|
|
706
|
* @static
|
|
707
|
* @private
|
|
708
|
*/
|
|
709
|
startInterval: function() {
|
|
710
|
if (!this._interval) {
|
|
711
|
var self = this;
|
|
712
|
var callback = function() { self._tryPreloadAttach(); };
|
|
713
|
this._interval = setInterval(callback, this.POLL_INTERVAL);
|
|
714
|
}
|
|
715
|
},
|
|
716
|
|
|
717
|
/**
|
|
718
|
* Executes the supplied callback when the item with the supplied
|
|
719
|
* id is found. This is meant to be used to execute behavior as
|
|
720
|
* soon as possible as the page loads. If you use this after the
|
|
721
|
* initial page load it will poll for a fixed time for the element.
|
|
722
|
* The number of times it will poll and the frequency are
|
|
723
|
* configurable. By default it will poll for 10 seconds.
|
|
724
|
*
|
|
725
|
* <p>The callback is executed with a single parameter:
|
|
726
|
* the custom object parameter, if provided.</p>
|
|
727
|
*
|
|
728
|
* @method onAvailable
|
|
729
|
*
|
|
730
|
* @param {string||string[]} p_id the id of the element, or an array
|
|
731
|
* of ids to look for.
|
|
732
|
* @param {function} p_fn what to execute when the element is found.
|
|
733
|
* @param {object} p_obj an optional object to be passed back as
|
|
734
|
* a parameter to p_fn.
|
|
735
|
* @param {boolean|object} p_override If set to true, p_fn will execute
|
|
736
|
* in the scope of p_obj, if set to an object it
|
|
737
|
* will execute in the scope of that object
|
|
738
|
* @param checkContent {boolean} check child node readiness (onContentReady)
|
|
739
|
* @static
|
|
740
|
*/
|
|
741
|
onAvailable: function(p_id, p_fn, p_obj, p_override, checkContent) {
|
|
742
|
|
|
743
|
var a = (YAHOO.lang.isString(p_id)) ? [p_id] : p_id;
|
|
744
|
|
|
745
|
for (var i=0; i<a.length; i=i+1) {
|
|
746
|
onAvailStack.push({id: a[i],
|
|
747
|
fn: p_fn,
|
|
748
|
obj: p_obj,
|
|
749
|
override: p_override,
|
|
750
|
checkReady: checkContent });
|
|
751
|
}
|
|
752
|
retryCount = this.POLL_RETRYS;
|
|
753
|
this.startInterval();
|
|
754
|
},
|
|
755
|
|
|
756
|
/**
|
|
757
|
* Works the same way as onAvailable, but additionally checks the
|
|
758
|
* state of sibling elements to determine if the content of the
|
|
759
|
* available element is safe to modify.
|
|
760
|
*
|
|
761
|
* <p>The callback is executed with a single parameter:
|
|
762
|
* the custom object parameter, if provided.</p>
|
|
763
|
*
|
|
764
|
* @method onContentReady
|
|
765
|
*
|
|
766
|
* @param {string} p_id the id of the element to look for.
|
|
767
|
* @param {function} p_fn what to execute when the element is ready.
|
|
768
|
* @param {object} p_obj an optional object to be passed back as
|
|
769
|
* a parameter to p_fn.
|
|
770
|
* @param {boolean|object} p_override If set to true, p_fn will execute
|
|
771
|
* in the scope of p_obj. If an object, p_fn will
|
|
772
|
* exectute in the scope of that object
|
|
773
|
*
|
|
774
|
* @static
|
|
775
|
*/
|
|
776
|
onContentReady: function(p_id, p_fn, p_obj, p_override) {
|
|
777
|
this.onAvailable(p_id, p_fn, p_obj, p_override, true);
|
|
778
|
},
|
|
779
|
|
|
780
|
/**
|
|
781
|
* Executes the supplied callback when the DOM is first usable. This
|
|
782
|
* will execute immediately if called after the DOMReady event has
|
|
783
|
* fired. @todo the DOMContentReady event does not fire when the
|
|
784
|
* script is dynamically injected into the page. This means the
|
|
785
|
* DOMReady custom event will never fire in FireFox or Opera when the
|
|
786
|
* library is injected. It _will_ fire in Safari, and the IE
|
|
787
|
* implementation would allow for us to fire it if the defered script
|
|
788
|
* is not available. We want this to behave the same in all browsers.
|
|
789
|
* Is there a way to identify when the script has been injected
|
|
790
|
* instead of included inline? Is there a way to know whether the
|
|
791
|
* window onload event has fired without having had a listener attached
|
|
792
|
* to it when it did so?
|
|
793
|
*
|
|
794
|
* <p>The callback is a CustomEvent, so the signature is:</p>
|
|
795
|
* <p>type <string>, args <array>, customobject <object></p>
|
|
796
|
* <p>For DOMReady events, there are no fire argments, so the
|
|
797
|
* signature is:</p>
|
|
798
|
* <p>"DOMReady", [], obj</p>
|
|
799
|
*
|
|
800
|
*
|
|
801
|
* @method onDOMReady
|
|
802
|
*
|
|
803
|
* @param {function} p_fn what to execute when the element is found.
|
|
804
|
* @param {object} p_obj an optional object to be passed back as
|
|
805
|
* a parameter to p_fn.
|
|
806
|
* @param {boolean|object} p_scope If set to true, p_fn will execute
|
|
807
|
* in the scope of p_obj, if set to an object it
|
|
808
|
* will execute in the scope of that object
|
|
809
|
*
|
|
810
|
* @static
|
|
811
|
*/
|
|
812
|
onDOMReady: function(p_fn, p_obj, p_override) {
|
|
813
|
if (this.DOMReady) {
|
|
814
|
setTimeout(function() {
|
|
815
|
var s = window;
|
|
816
|
if (p_override) {
|
|
817
|
if (p_override === true) {
|
|
818
|
s = p_obj;
|
|
819
|
} else {
|
|
820
|
s = p_override;
|
|
821
|
}
|
|
822
|
}
|
|
823
|
p_fn.call(s, "DOMReady", [], p_obj);
|
|
824
|
}, 0);
|
|
825
|
} else {
|
|
826
|
this.DOMReadyEvent.subscribe(p_fn, p_obj, p_override);
|
|
827
|
}
|
|
828
|
},
|
|
829
|
|
|
830
|
/**
|
|
831
|
* Appends an event handler
|
|
832
|
*
|
|
833
|
* @method addListener
|
|
834
|
*
|
|
835
|
* @param {String|HTMLElement|Array|NodeList} el An id, an element
|
|
836
|
* reference, or a collection of ids and/or elements to assign the
|
|
837
|
* listener to.
|
|
838
|
* @param {String} sType The type of event to append
|
|
839
|
* @param {Function} fn The method the event invokes
|
|
840
|
* @param {Object} obj An arbitrary object that will be
|
|
841
|
* passed as a parameter to the handler
|
|
842
|
* @param {Boolean|object} override If true, the obj passed in becomes
|
|
843
|
* the execution scope of the listener. If an
|
|
844
|
* object, this object becomes the execution
|
|
845
|
* scope.
|
|
846
|
* @return {Boolean} True if the action was successful or defered,
|
|
847
|
* false if one or more of the elements
|
|
848
|
* could not have the listener attached,
|
|
849
|
* or if the operation throws an exception.
|
|
850
|
* @static
|
|
851
|
*/
|
|
852
|
addListener: function(el, sType, fn, obj, override) {
|
|
853
|
|
|
854
|
if (!fn || !fn.call) {
|
|
855
|
// throw new TypeError(sType + " addListener call failed, callback undefined");
|
|
856
|
YAHOO.log(sType + " addListener call failed, invalid callback", "error", "Event");
|
|
857
|
return false;
|
|
858
|
}
|
|
859
|
|
|
860
|
// The el argument can be an array of elements or element ids.
|
|
861
|
if ( this._isValidCollection(el)) {
|
|
862
|
var ok = true;
|
|
863
|
for (var i=0,len=el.length; i<len; ++i) {
|
|
864
|
ok = this.on(el[i],
|
|
865
|
sType,
|
|
866
|
fn,
|
|
867
|
obj,
|
|
868
|
override) && ok;
|
|
869
|
}
|
|
870
|
return ok;
|
|
871
|
|
|
872
|
} else if (YAHOO.lang.isString(el)) {
|
|
873
|
var oEl = this.getEl(el);
|
|
874
|
// If the el argument is a string, we assume it is
|
|
875
|
// actually the id of the element. If the page is loaded
|
|
876
|
// we convert el to the actual element, otherwise we
|
|
877
|
// defer attaching the event until onload event fires
|
|
878
|
|
|
879
|
// check to see if we need to delay hooking up the event
|
|
880
|
// until after the page loads.
|
|
881
|
if (oEl) {
|
|
882
|
el = oEl;
|
|
883
|
} else {
|
|
884
|
// defer adding the event until the element is available
|
|
885
|
this.onAvailable(el, function() {
|
|
886
|
YAHOO.util.Event.on(el, sType, fn, obj, override);
|
|
887
|
});
|
|
888
|
|
|
889
|
return true;
|
|
890
|
}
|
|
891
|
}
|
|
892
|
|
|
893
|
// Element should be an html element or an array if we get
|
|
894
|
// here.
|
|
895
|
if (!el) {
|
|
896
|
// this.logger.debug("unable to attach event " + sType);
|
|
897
|
return false;
|
|
898
|
}
|
|
899
|
|
|
900
|
// we need to make sure we fire registered unload events
|
|
901
|
// prior to automatically unhooking them. So we hang on to
|
|
902
|
// these instead of attaching them to the window and fire the
|
|
903
|
// handles explicitly during our one unload event.
|
|
904
|
if ("unload" == sType && obj !== this) {
|
|
905
|
unloadListeners[unloadListeners.length] =
|
|
906
|
[el, sType, fn, obj, override];
|
|
907
|
return true;
|
|
908
|
}
|
|
909
|
|
|
910
|
// this.logger.debug("Adding handler: " + el + ", " + sType);
|
|
911
|
|
|
912
|
// if the user chooses to override the scope, we use the custom
|
|
913
|
// object passed in, otherwise the executing scope will be the
|
|
914
|
// HTML element that the event is registered on
|
|
915
|
var scope = el;
|
|
916
|
if (override) {
|
|
917
|
if (override === true) {
|
|
918
|
scope = obj;
|
|
919
|
} else {
|
|
920
|
scope = override;
|
|
921
|
}
|
|
922
|
}
|
|
923
|
|
|
924
|
// wrap the function so we can return the obj object when
|
|
925
|
// the event fires;
|
|
926
|
var wrappedFn = function(e) {
|
|
927
|
return fn.call(scope, YAHOO.util.Event.getEvent(e, el),
|
|
928
|
obj);
|
|
929
|
};
|
|
930
|
|
|
931
|
var li = [el, sType, fn, wrappedFn, scope, obj, override];
|
|
932
|
var index = listeners.length;
|
|
933
|
// cache the listener so we can try to automatically unload
|
|
934
|
listeners[index] = li;
|
|
935
|
|
|
936
|
if (this.useLegacyEvent(el, sType)) {
|
|
937
|
var legacyIndex = this.getLegacyIndex(el, sType);
|
|
938
|
|
|
939
|
// Add a new dom0 wrapper if one is not detected for this
|
|
940
|
// element
|
|
941
|
if ( legacyIndex == -1 ||
|
|
942
|
el != legacyEvents[legacyIndex][0] ) {
|
|
943
|
|
|
944
|
legacyIndex = legacyEvents.length;
|
|
945
|
legacyMap[el.id + sType] = legacyIndex;
|
|
946
|
|
|
947
|
// cache the signature for the DOM0 event, and
|
|
948
|
// include the existing handler for the event, if any
|
|
949
|
legacyEvents[legacyIndex] =
|
|
950
|
[el, sType, el["on" + sType]];
|
|
951
|
legacyHandlers[legacyIndex] = [];
|
|
952
|
|
|
953
|
el["on" + sType] =
|
|
954
|
function(e) {
|
|
955
|
YAHOO.util.Event.fireLegacyEvent(
|
|
956
|
YAHOO.util.Event.getEvent(e), legacyIndex);
|
|
957
|
};
|
|
958
|
}
|
|
959
|
|
|
960
|
// add a reference to the wrapped listener to our custom
|
|
961
|
// stack of events
|
|
962
|
//legacyHandlers[legacyIndex].push(index);
|
|
963
|
legacyHandlers[legacyIndex].push(li);
|
|
964
|
|
|
965
|
} else {
|
|
966
|
try {
|
|
967
|
this._simpleAdd(el, sType, wrappedFn, false);
|
|
968
|
} catch(ex) {
|
|
969
|
// handle an error trying to attach an event. If it fails
|
|
970
|
// we need to clean up the cache
|
|
971
|
this.lastError = ex;
|
|
972
|
this.removeListener(el, sType, fn);
|
|
973
|
return false;
|
|
974
|
}
|
|
975
|
}
|
|
976
|
|
|
977
|
return true;
|
|
978
|
|
|
979
|
},
|
|
980
|
|
|
981
|
/**
|
|
982
|
* When using legacy events, the handler is routed to this object
|
|
983
|
* so we can fire our custom listener stack.
|
|
984
|
* @method fireLegacyEvent
|
|
985
|
* @static
|
|
986
|
* @private
|
|
987
|
*/
|
|
988
|
fireLegacyEvent: function(e, legacyIndex) {
|
|
989
|
// this.logger.debug("fireLegacyEvent " + legacyIndex);
|
|
990
|
var ok=true,le,lh,li,scope,ret;
|
|
991
|
|
|
992
|
lh = legacyHandlers[legacyIndex];
|
|
993
|
for (var i=0,len=lh.length; i<len; ++i) {
|
|
994
|
li = lh[i];
|
|
995
|
if ( li && li[this.WFN] ) {
|
|
996
|
scope = li[this.ADJ_SCOPE];
|
|
997
|
ret = li[this.WFN].call(scope, e);
|
|
998
|
ok = (ok && ret);
|
|
999
|
}
|
|
1000
|
}
|
|
1001
|
|
|
1002
|
// Fire the original handler if we replaced one. We fire this
|
|
1003
|
// after the other events to keep stopPropagation/preventDefault
|
|
1004
|
// that happened in the DOM0 handler from touching our DOM2
|
|
1005
|
// substitute
|
|
1006
|
le = legacyEvents[legacyIndex];
|
|
1007
|
if (le && le[2]) {
|
|
1008
|
le[2](e);
|
|
1009
|
}
|
|
1010
|
|
|
1011
|
return ok;
|
|
1012
|
},
|
|
1013
|
|
|
1014
|
/**
|
|
1015
|
* Returns the legacy event index that matches the supplied
|
|
1016
|
* signature
|
|
1017
|
* @method getLegacyIndex
|
|
1018
|
* @static
|
|
1019
|
* @private
|
|
1020
|
*/
|
|
1021
|
getLegacyIndex: function(el, sType) {
|
|
1022
|
var key = this.generateId(el) + sType;
|
|
1023
|
if (typeof legacyMap[key] == "undefined") {
|
|
1024
|
return -1;
|
|
1025
|
} else {
|
|
1026
|
return legacyMap[key];
|
|
1027
|
}
|
|
1028
|
},
|
|
1029
|
|
|
1030
|
/**
|
|
1031
|
* Logic that determines when we should automatically use legacy
|
|
1032
|
* events instead of DOM2 events. Currently this is limited to old
|
|
1033
|
* Safari browsers with a broken preventDefault
|
|
1034
|
* @method useLegacyEvent
|
|
1035
|
* @static
|
|
1036
|
* @private
|
|
1037
|
*/
|
|
1038
|
useLegacyEvent: function(el, sType) {
|
|
1039
|
if (this.webkit && ("click"==sType || "dblclick"==sType)) {
|
|
1040
|
var v = parseInt(this.webkit, 10);
|
|
1041
|
if (!isNaN(v) && v<418) {
|
|
1042
|
return true;
|
|
1043
|
}
|
|
1044
|
}
|
|
1045
|
return false;
|
|
1046
|
},
|
|
1047
|
|
|
1048
|
/**
|
|
1049
|
* Removes an event listener
|
|
1050
|
*
|
|
1051
|
* @method removeListener
|
|
1052
|
*
|
|
1053
|
* @param {String|HTMLElement|Array|NodeList} el An id, an element
|
|
1054
|
* reference, or a collection of ids and/or elements to remove
|
|
1055
|
* the listener from.
|
|
1056
|
* @param {String} sType the type of event to remove.
|
|
1057
|
* @param {Function} fn the method the event invokes. If fn is
|
|
1058
|
* undefined, then all event handlers for the type of event are
|
|
1059
|
* removed.
|
|
1060
|
* @return {boolean} true if the unbind was successful, false
|
|
1061
|
* otherwise.
|
|
1062
|
* @static
|
|
1063
|
*/
|
|
1064
|
removeListener: function(el, sType, fn) {
|
|
1065
|
var i, len, li;
|
|
1066
|
|
|
1067
|
// The el argument can be a string
|
|
1068
|
if (typeof el == "string") {
|
|
1069
|
el = this.getEl(el);
|
|
1070
|
// The el argument can be an array of elements or element ids.
|
|
1071
|
} else if ( this._isValidCollection(el)) {
|
|
1072
|
var ok = true;
|
|
1073
|
for (i=0,len=el.length; i<len; ++i) {
|
|
1074
|
ok = ( this.removeListener(el[i], sType, fn) && ok );
|
|
1075
|
}
|
|
1076
|
return ok;
|
|
1077
|
}
|
|
1078
|
|
|
1079
|
if (!fn || !fn.call) {
|
|
1080
|
// this.logger.debug("Error, function is not valid " + fn);
|
|
1081
|
//return false;
|
|
1082
|
return this.purgeElement(el, false, sType);
|
|
1083
|
}
|
|
1084
|
|
|
1085
|
if ("unload" == sType) {
|
|
1086
|
|
|
1087
|
for (i=0, len=unloadListeners.length; i<len; i++) {
|
|
1088
|
li = unloadListeners[i];
|
|
1089
|
if (li &&
|
|
1090
|
li[0] == el &&
|
|
1091
|
li[1] == sType &&
|
|
1092
|
li[2] == fn) {
|
|
1093
|
//unloadListeners.splice(i, 1);
|
|
1094
|
unloadListeners[i]=null;
|
|
1095
|
return true;
|
|
1096
|
}
|
|
1097
|
}
|
|
1098
|
|
|
1099
|
return false;
|
|
1100
|
}
|
|
1101
|
|
|
1102
|
var cacheItem = null;
|
|
1103
|
|
|
1104
|
// The index is a hidden parameter; needed to remove it from
|
|
1105
|
// the method signature because it was tempting users to
|
|
1106
|
// try and take advantage of it, which is not possible.
|
|
1107
|
var index = arguments[3];
|
|
1108
|
|
|
1109
|
if ("undefined" === typeof index) {
|
|
1110
|
index = this._getCacheIndex(el, sType, fn);
|
|
1111
|
}
|
|
1112
|
|
|
1113
|
if (index >= 0) {
|
|
1114
|
cacheItem = listeners[index];
|
|
1115
|
}
|
|
1116
|
|
|
1117
|
if (!el || !cacheItem) {
|
|
1118
|
// this.logger.debug("cached listener not found");
|
|
1119
|
return false;
|
|
1120
|
}
|
|
1121
|
|
|
1122
|
// this.logger.debug("Removing handler: " + el + ", " + sType);
|
|
1123
|
|
|
1124
|
if (this.useLegacyEvent(el, sType)) {
|
|
1125
|
var legacyIndex = this.getLegacyIndex(el, sType);
|
|
1126
|
var llist = legacyHandlers[legacyIndex];
|
|
1127
|
if (llist) {
|
|
1128
|
for (i=0, len=llist.length; i<len; ++i) {
|
|
1129
|
li = llist[i];
|
|
1130
|
if (li &&
|
|
1131
|
li[this.EL] == el &&
|
|
1132
|
li[this.TYPE] == sType &&
|
|
1133
|
li[this.FN] == fn) {
|
|
1134
|
//llist.splice(i, 1);
|
|
1135
|
llist[i]=null;
|
|
1136
|
break;
|
|
1137
|
}
|
|
1138
|
}
|
|
1139
|
}
|
|
1140
|
|
|
1141
|
} else {
|
|
1142
|
try {
|
|
1143
|
this._simpleRemove(el, sType, cacheItem[this.WFN], false);
|
|
1144
|
} catch(ex) {
|
|
1145
|
this.lastError = ex;
|
|
1146
|
return false;
|
|
1147
|
}
|
|
1148
|
}
|
|
1149
|
|
|
1150
|
// removed the wrapped handler
|
|
1151
|
delete listeners[index][this.WFN];
|
|
1152
|
delete listeners[index][this.FN];
|
|
1153
|
//listeners.splice(index, 1);
|
|
1154
|
listeners[index]=null;
|
|
1155
|
|
|
1156
|
return true;
|
|
1157
|
|
|
1158
|
},
|
|
1159
|
|
|
1160
|
/**
|
|
1161
|
* Returns the event's target element. Safari sometimes provides
|
|
1162
|
* a text node, and this is automatically resolved to the text
|
|
1163
|
* node's parent so that it behaves like other browsers.
|
|
1164
|
* @method getTarget
|
|
1165
|
* @param {Event} ev the event
|
|
1166
|
* @param {boolean} resolveTextNode when set to true the target's
|
|
1167
|
* parent will be returned if the target is a
|
|
1168
|
* text node. @deprecated, the text node is
|
|
1169
|
* now resolved automatically
|
|
1170
|
* @return {HTMLElement} the event's target
|
|
1171
|
* @static
|
|
1172
|
*/
|
|
1173
|
getTarget: function(ev, resolveTextNode) {
|
|
1174
|
var t = ev.target || ev.srcElement;
|
|
1175
|
return this.resolveTextNode(t);
|
|
1176
|
},
|
|
1177
|
|
|
1178
|
/**
|
|
1179
|
* In some cases, some browsers will return a text node inside
|
|
1180
|
* the actual element that was targeted. This normalizes the
|
|
1181
|
* return value for getTarget and getRelatedTarget.
|
|
1182
|
* @method resolveTextNode
|
|
1183
|
* @param {HTMLElement} node node to resolve
|
|
1184
|
* @return {HTMLElement} the normized node
|
|
1185
|
* @static
|
|
1186
|
*/
|
|
1187
|
resolveTextNode: function(node) {
|
|
1188
|
if (node && 3 == node.nodeType) {
|
|
1189
|
return node.parentNode;
|
|
1190
|
} else {
|
|
1191
|
return node;
|
|
1192
|
}
|
|
1193
|
},
|
|
1194
|
|
|
1195
|
/**
|
|
1196
|
* Returns the event's pageX
|
|
1197
|
* @method getPageX
|
|
1198
|
* @param {Event} ev the event
|
|
1199
|
* @return {int} the event's pageX
|
|
1200
|
* @static
|
|
1201
|
*/
|
|
1202
|
getPageX: function(ev) {
|
|
1203
|
var x = ev.pageX;
|
|
1204
|
if (!x && 0 !== x) {
|
|
1205
|
x = ev.clientX || 0;
|
|
1206
|
|
|
1207
|
if ( this.isIE ) {
|
|
1208
|
x += this._getScrollLeft();
|
|
1209
|
}
|
|
1210
|
}
|
|
1211
|
|
|
1212
|
return x;
|
|
1213
|
},
|
|
1214
|
|
|
1215
|
/**
|
|
1216
|
* Returns the event's pageY
|
|
1217
|
* @method getPageY
|
|
1218
|
* @param {Event} ev the event
|
|
1219
|
* @return {int} the event's pageY
|
|
1220
|
* @static
|
|
1221
|
*/
|
|
1222
|
getPageY: function(ev) {
|
|
1223
|
var y = ev.pageY;
|
|
1224
|
if (!y && 0 !== y) {
|
|
1225
|
y = ev.clientY || 0;
|
|
1226
|
|
|
1227
|
if ( this.isIE ) {
|
|
1228
|
y += this._getScrollTop();
|
|
1229
|
}
|
|
1230
|
}
|
|
1231
|
|
|
1232
|
|
|
1233
|
return y;
|
|
1234
|
},
|
|
1235
|
|
|
1236
|
/**
|
|
1237
|
* Returns the pageX and pageY properties as an indexed array.
|
|
1238
|
* @method getXY
|
|
1239
|
* @param {Event} ev the event
|
|
1240
|
* @return {[x, y]} the pageX and pageY properties of the event
|
|
1241
|
* @static
|
|
1242
|
*/
|
|
1243
|
getXY: function(ev) {
|
|
1244
|
return [this.getPageX(ev), this.getPageY(ev)];
|
|
1245
|
},
|
|
1246
|
|
|
1247
|
/**
|
|
1248
|
* Returns the event's related target
|
|
1249
|
* @method getRelatedTarget
|
|
1250
|
* @param {Event} ev the event
|
|
1251
|
* @return {HTMLElement} the event's relatedTarget
|
|
1252
|
* @static
|
|
1253
|
*/
|
|
1254
|
getRelatedTarget: function(ev) {
|
|
1255
|
var t = ev.relatedTarget;
|
|
1256
|
if (!t) {
|
|
1257
|
if (ev.type == "mouseout") {
|
|
1258
|
t = ev.toElement;
|
|
1259
|
} else if (ev.type == "mouseover") {
|
|
1260
|
t = ev.fromElement;
|
|
1261
|
}
|
|
1262
|
}
|
|
1263
|
|
|
1264
|
return this.resolveTextNode(t);
|
|
1265
|
},
|
|
1266
|
|
|
1267
|
/**
|
|
1268
|
* Returns the time of the event. If the time is not included, the
|
|
1269
|
* event is modified using the current time.
|
|
1270
|
* @method getTime
|
|
1271
|
* @param {Event} ev the event
|
|
1272
|
* @return {Date} the time of the event
|
|
1273
|
* @static
|
|
1274
|
*/
|
|
1275
|
getTime: function(ev) {
|
|
1276
|
if (!ev.time) {
|
|
1277
|
var t = new Date().getTime();
|
|
1278
|
try {
|
|
1279
|
ev.time = t;
|
|
1280
|
} catch(ex) {
|
|
1281
|
this.lastError = ex;
|
|
1282
|
return t;
|
|
1283
|
}
|
|
1284
|
}
|
|
1285
|
|
|
1286
|
return ev.time;
|
|
1287
|
},
|
|
1288
|
|
|
1289
|
/**
|
|
1290
|
* Convenience method for stopPropagation + preventDefault
|
|
1291
|
* @method stopEvent
|
|
1292
|
* @param {Event} ev the event
|
|
1293
|
* @static
|
|
1294
|
*/
|
|
1295
|
stopEvent: function(ev) {
|
|
1296
|
this.stopPropagation(ev);
|
|
1297
|
this.preventDefault(ev);
|
|
1298
|
},
|
|
1299
|
|
|
1300
|
/**
|
|
1301
|
* Stops event propagation
|
|
1302
|
* @method stopPropagation
|
|
1303
|
* @param {Event} ev the event
|
|
1304
|
* @static
|
|
1305
|
*/
|
|
1306
|
stopPropagation: function(ev) {
|
|
1307
|
if (ev.stopPropagation) {
|
|
1308
|
ev.stopPropagation();
|
|
1309
|
} else {
|
|
1310
|
ev.cancelBubble = true;
|
|
1311
|
}
|
|
1312
|
},
|
|
1313
|
|
|
1314
|
/**
|
|
1315
|
* Prevents the default behavior of the event
|
|
1316
|
* @method preventDefault
|
|
1317
|
* @param {Event} ev the event
|
|
1318
|
* @static
|
|
1319
|
*/
|
|
1320
|
preventDefault: function(ev) {
|
|
1321
|
if (ev.preventDefault) {
|
|
1322
|
ev.preventDefault();
|
|
1323
|
} else {
|
|
1324
|
ev.returnValue = false;
|
|
1325
|
}
|
|
1326
|
},
|
|
1327
|
|
|
1328
|
/**
|
|
1329
|
* Finds the event in the window object, the caller's arguments, or
|
|
1330
|
* in the arguments of another method in the callstack. This is
|
|
1331
|
* executed automatically for events registered through the event
|
|
1332
|
* manager, so the implementer should not normally need to execute
|
|
1333
|
* this function at all.
|
|
1334
|
* @method getEvent
|
|
1335
|
* @param {Event} e the event parameter from the handler
|
|
1336
|
* @param {HTMLElement} boundEl the element the listener is attached to
|
|
1337
|
* @return {Event} the event
|
|
1338
|
* @static
|
|
1339
|
*/
|
|
1340
|
getEvent: function(e, boundEl) {
|
|
1341
|
var ev = e || window.event;
|
|
1342
|
|
|
1343
|
if (!ev) {
|
|
1344
|
var c = this.getEvent.caller;
|
|
1345
|
while (c) {
|
|
1346
|
ev = c.arguments[0];
|
|
1347
|
if (ev && Event == ev.constructor) {
|
|
1348
|
break;
|
|
1349
|
}
|
|
1350
|
c = c.caller;
|
|
1351
|
}
|
|
1352
|
}
|
|
1353
|
|
|
1354
|
// IE events that target non-browser objects (e.g., VML
|
|
1355
|
// canvas) will sometimes throw errors when you try to
|
|
1356
|
// inspect the properties of the event target. We try to
|
|
1357
|
// detect this condition, and provide a dummy target (the bound
|
|
1358
|
// element) to eliminate spurious errors.
|
|
1359
|
|
|
1360
|
// the implementation caused unexpected results in some
|
|
1361
|
// implementations, so this has been rolled back for now
|
|
1362
|
/*
|
|
1363
|
if (ev && this.isIE) {
|
|
1364
|
|
|
1365
|
try {
|
|
1366
|
|
|
1367
|
var el = ev.srcElement;
|
|
1368
|
|
|
1369
|
} catch(ex) {
|
|
1370
|
|
|
1371
|
YAHOO.log("Inspecting the target caused an error, " +
|
|
1372
|
"setting the target to the bound element.", "warn");
|
|
1373
|
|
|
1374
|
ev.target = boundEl;
|
|
1375
|
}
|
|
1376
|
|
|
1377
|
}
|
|
1378
|
*/
|
|
1379
|
|
|
1380
|
return ev;
|
|
1381
|
},
|
|
1382
|
|
|
1383
|
/**
|
|
1384
|
* Returns the charcode for an event
|
|
1385
|
* @method getCharCode
|
|
1386
|
* @param {Event} ev the event
|
|
1387
|
* @return {int} the event's charCode
|
|
1388
|
* @static
|
|
1389
|
*/
|
|
1390
|
getCharCode: function(ev) {
|
|
1391
|
var code = ev.keyCode || ev.charCode || 0;
|
|
1392
|
|
|
1393
|
// webkit normalization
|
|
1394
|
if (YAHOO.env.ua.webkit && (code in webkitKeymap)) {
|
|
1395
|
code = webkitKeymap[code];
|
|
1396
|
}
|
|
1397
|
return code;
|
|
1398
|
},
|
|
1399
|
|
|
1400
|
/**
|
|
1401
|
* Locating the saved event handler data by function ref
|
|
1402
|
*
|
|
1403
|
* @method _getCacheIndex
|
|
1404
|
* @static
|
|
1405
|
* @private
|
|
1406
|
*/
|
|
1407
|
_getCacheIndex: function(el, sType, fn) {
|
|
1408
|
for (var i=0,len=listeners.length; i<len; ++i) {
|
|
1409
|
var li = listeners[i];
|
|
1410
|
if ( li &&
|
|
1411
|
li[this.FN] == fn &&
|
|
1412
|
li[this.EL] == el &&
|
|
1413
|
li[this.TYPE] == sType ) {
|
|
1414
|
return i;
|
|
1415
|
}
|
|
1416
|
}
|
|
1417
|
|
|
1418
|
return -1;
|
|
1419
|
},
|
|
1420
|
|
|
1421
|
/**
|
|
1422
|
* Generates an unique ID for the element if it does not already
|
|
1423
|
* have one.
|
|
1424
|
* @method generateId
|
|
1425
|
* @param el the element to create the id for
|
|
1426
|
* @return {string} the resulting id of the element
|
|
1427
|
* @static
|
|
1428
|
*/
|
|
1429
|
generateId: function(el) {
|
|
1430
|
var id = el.id;
|
|
1431
|
|
|
1432
|
if (!id) {
|
|
1433
|
id = "yuievtautoid-" + counter;
|
|
1434
|
++counter;
|
|
1435
|
el.id = id;
|
|
1436
|
}
|
|
1437
|
|
|
1438
|
return id;
|
|
1439
|
},
|
|
1440
|
|
|
1441
|
|
|
1442
|
/**
|
|
1443
|
* We want to be able to use getElementsByTagName as a collection
|
|
1444
|
* to attach a group of events to. Unfortunately, different
|
|
1445
|
* browsers return different types of collections. This function
|
|
1446
|
* tests to determine if the object is array-like. It will also
|
|
1447
|
* fail if the object is an array, but is empty.
|
|
1448
|
* @method _isValidCollection
|
|
1449
|
* @param o the object to test
|
|
1450
|
* @return {boolean} true if the object is array-like and populated
|
|
1451
|
* @static
|
|
1452
|
* @private
|
|
1453
|
*/
|
|
1454
|
_isValidCollection: function(o) {
|
|
1455
|
try {
|
|
1456
|
return ( o && // o is something
|
|
1457
|
typeof o !== "string" && // o is not a string
|
|
1458
|
o.length && // o is indexed
|
|
1459
|
!o.tagName && // o is not an HTML element
|
|
1460
|
!o.alert && // o is not a window
|
|
1461
|
typeof o[0] !== "undefined" );
|
|
1462
|
} catch(ex) {
|
|
1463
|
YAHOO.log("_isValidCollection error, assuming that " +
|
|
1464
|
" this is a cross frame problem and not a collection", "warn");
|
|
1465
|
return false;
|
|
1466
|
}
|
|
1467
|
|
|
1468
|
},
|
|
1469
|
|
|
1470
|
/**
|
|
1471
|
* @private
|
|
1472
|
* @property elCache
|
|
1473
|
* DOM element cache
|
|
1474
|
* @static
|
|
1475
|
* @deprecated Elements are not cached due to issues that arise when
|
|
1476
|
* elements are removed and re-added
|
|
1477
|
*/
|
|
1478
|
elCache: {},
|
|
1479
|
|
|
1480
|
/**
|
|
1481
|
* We cache elements bound by id because when the unload event
|
|
1482
|
* fires, we can no longer use document.getElementById
|
|
1483
|
* @method getEl
|
|
1484
|
* @static
|
|
1485
|
* @private
|
|
1486
|
* @deprecated Elements are not cached any longer
|
|
1487
|
*/
|
|
1488
|
getEl: function(id) {
|
|
1489
|
return (typeof id === "string") ? document.getElementById(id) : id;
|
|
1490
|
},
|
|
1491
|
|
|
1492
|
/**
|
|
1493
|
* Clears the element cache
|
|
1494
|
* @deprecated Elements are not cached any longer
|
|
1495
|
* @method clearCache
|
|
1496
|
* @static
|
|
1497
|
* @private
|
|
1498
|
*/
|
|
1499
|
clearCache: function() { },
|
|
1500
|
|
|
1501
|
/**
|
|
1502
|
* Custom event the fires when the dom is initially usable
|
|
1503
|
* @event DOMReadyEvent
|
|
1504
|
*/
|
|
1505
|
DOMReadyEvent: new YAHOO.util.CustomEvent("DOMReady", this),
|
|
1506
|
|
|
1507
|
/**
|
|
1508
|
* hook up any deferred listeners
|
|
1509
|
* @method _load
|
|
1510
|
* @static
|
|
1511
|
* @private
|
|
1512
|
*/
|
|
1513
|
_load: function(e) {
|
|
1514
|
|
|
1515
|
if (!loadComplete) {
|
|
1516
|
loadComplete = true;
|
|
1517
|
var EU = YAHOO.util.Event;
|
|
1518
|
|
|
1519
|
// Just in case DOMReady did not go off for some reason
|
|
1520
|
EU._ready();
|
|
1521
|
|
|
1522
|
// Available elements may not have been detected before the
|
|
1523
|
// window load event fires. Try to find them now so that the
|
|
1524
|
// the user is more likely to get the onAvailable notifications
|
|
1525
|
// before the window load notification
|
|
1526
|
EU._tryPreloadAttach();
|
|
1527
|
|
|
1528
|
// Remove the listener to assist with the IE memory issue, but not
|
|
1529
|
// for other browsers because FF 1.0x does not like it.
|
|
1530
|
//if (this.isIE) {
|
|
1531
|
//EU._simpleRemove(window, "load", EU._load);
|
|
1532
|
//}
|
|
1533
|
}
|
|
1534
|
},
|
|
1535
|
|
|
1536
|
/**
|
|
1537
|
* Fires the DOMReady event listeners the first time the document is
|
|
1538
|
* usable.
|
|
1539
|
* @method _ready
|
|
1540
|
* @static
|
|
1541
|
* @private
|
|
1542
|
*/
|
|
1543
|
_ready: function(e) {
|
|
1544
|
var EU = YAHOO.util.Event;
|
|
1545
|
if (!EU.DOMReady) {
|
|
1546
|
EU.DOMReady=true;
|
|
1547
|
|
|
1548
|
// Fire the content ready custom event
|
|
1549
|
EU.DOMReadyEvent.fire();
|
|
1550
|
|
|
1551
|
// Remove the DOMContentLoaded (FF/Opera)
|
|
1552
|
EU._simpleRemove(document, "DOMContentLoaded", EU._ready);
|
|
1553
|
}
|
|
1554
|
},
|
|
1555
|
|
|
1556
|
/**
|
|
1557
|
* Polling function that runs before the onload event fires,
|
|
1558
|
* attempting to attach to DOM Nodes as soon as they are
|
|
1559
|
* available
|
|
1560
|
* @method _tryPreloadAttach
|
|
1561
|
* @static
|
|
1562
|
* @private
|
|
1563
|
*/
|
|
1564
|
_tryPreloadAttach: function() {
|
|
1565
|
|
|
1566
|
if (this.locked) {
|
|
1567
|
return false;
|
|
1568
|
}
|
|
1569
|
|
|
1570
|
if (this.isIE) {
|
|
1571
|
// Hold off if DOMReady has not fired and check current
|
|
1572
|
// readyState to protect against the IE operation aborted
|
|
1573
|
// issue.
|
|
1574
|
//if (!this.DOMReady || "complete" !== document.readyState) {
|
|
1575
|
if (!this.DOMReady) {
|
|
1576
|
this.startInterval();
|
|
1577
|
return false;
|
|
1578
|
}
|
|
1579
|
}
|
|
1580
|
|
|
1581
|
this.locked = true;
|
|
1582
|
|
|
1583
|
// this.logger.debug("tryPreloadAttach");
|
|
1584
|
|
|
1585
|
// keep trying until after the page is loaded. We need to
|
|
1586
|
// check the page load state prior to trying to bind the
|
|
1587
|
// elements so that we can be certain all elements have been
|
|
1588
|
// tested appropriately
|
|
1589
|
var tryAgain = !loadComplete;
|
|
1590
|
if (!tryAgain) {
|
|
1591
|
tryAgain = (retryCount > 0);
|
|
1592
|
}
|
|
1593
|
|
|
1594
|
// onAvailable
|
|
1595
|
var notAvail = [];
|
|
1596
|
|
|
1597
|
var executeItem = function (el, item) {
|
|
1598
|
var scope = el;
|
|
1599
|
if (item.override) {
|
|
1600
|
if (item.override === true) {
|
|
1601
|
scope = item.obj;
|
|
1602
|
} else {
|
|
1603
|
scope = item.override;
|
|
1604
|
}
|
|
1605
|
}
|
|
1606
|
item.fn.call(scope, item.obj);
|
|
1607
|
};
|
|
1608
|
|
|
1609
|
var i,len,item,el;
|
|
1610
|
|
|
1611
|
// onAvailable
|
|
1612
|
for (i=0,len=onAvailStack.length; i<len; ++i) {
|
|
1613
|
item = onAvailStack[i];
|
|
1614
|
if (item && !item.checkReady) {
|
|
1615
|
el = this.getEl(item.id);
|
|
1616
|
if (el) {
|
|
1617
|
executeItem(el, item);
|
|
1618
|
onAvailStack[i] = null;
|
|
1619
|
} else {
|
|
1620
|
notAvail.push(item);
|
|
1621
|
}
|
|
1622
|
}
|
|
1623
|
}
|
|
1624
|
|
|
1625
|
// onContentReady
|
|
1626
|
for (i=0,len=onAvailStack.length; i<len; ++i) {
|
|
1627
|
item = onAvailStack[i];
|
|
1628
|
if (item && item.checkReady) {
|
|
1629
|
el = this.getEl(item.id);
|
|
1630
|
|
|
1631
|
if (el) {
|
|
1632
|
// The element is available, but not necessarily ready
|
|
1633
|
// @todo should we test parentNode.nextSibling?
|
|
1634
|
if (loadComplete || el.nextSibling) {
|
|
1635
|
executeItem(el, item);
|
|
1636
|
onAvailStack[i] = null;
|
|
1637
|
}
|
|
1638
|
} else {
|
|
1639
|
notAvail.push(item);
|
|
1640
|
}
|
|
1641
|
}
|
|
1642
|
}
|
|
1643
|
|
|
1644
|
retryCount = (notAvail.length === 0) ? 0 : retryCount - 1;
|
|
1645
|
|
|
1646
|
if (tryAgain) {
|
|
1647
|
// we may need to strip the nulled out items here
|
|
1648
|
this.startInterval();
|
|
1649
|
} else {
|
|
1650
|
clearInterval(this._interval);
|
|
1651
|
this._interval = null;
|
|
1652
|
}
|
|
1653
|
|
|
1654
|
this.locked = false;
|
|
1655
|
|
|
1656
|
return true;
|
|
1657
|
|
|
1658
|
},
|
|
1659
|
|
|
1660
|
/**
|
|
1661
|
* Removes all listeners attached to the given element via addListener.
|
|
1662
|
* Optionally, the node's children can also be purged.
|
|
1663
|
* Optionally, you can specify a specific type of event to remove.
|
|
1664
|
* @method purgeElement
|
|
1665
|
* @param {HTMLElement} el the element to purge
|
|
1666
|
* @param {boolean} recurse recursively purge this element's children
|
|
1667
|
* as well. Use with caution.
|
|
1668
|
* @param {string} sType optional type of listener to purge. If
|
|
1669
|
* left out, all listeners will be removed
|
|
1670
|
* @static
|
|
1671
|
*/
|
|
1672
|
purgeElement: function(el, recurse, sType) {
|
|
1673
|
var oEl = (YAHOO.lang.isString(el)) ? this.getEl(el) : el;
|
|
1674
|
var elListeners = this.getListeners(oEl, sType), i, len;
|
|
1675
|
if (elListeners) {
|
|
1676
|
for (i=0,len=elListeners.length; i<len ; ++i) {
|
|
1677
|
var l = elListeners[i];
|
|
1678
|
// can't use the index on the changing collection
|
|
1679
|
this.removeListener(oEl, l.type, l.fn, l.index);
|
|
1680
|
//this.removeListener(oEl, l.type, l.fn);
|
|
1681
|
}
|
|
1682
|
}
|
|
1683
|
|
|
1684
|
if (recurse && oEl && oEl.childNodes) {
|
|
1685
|
for (i=0,len=oEl.childNodes.length; i<len ; ++i) {
|
|
1686
|
this.purgeElement(oEl.childNodes[i], recurse, sType);
|
|
1687
|
}
|
|
1688
|
}
|
|
1689
|
},
|
|
1690
|
|
|
1691
|
/**
|
|
1692
|
* Returns all listeners attached to the given element via addListener.
|
|
1693
|
* Optionally, you can specify a specific type of event to return.
|
|
1694
|
* @method getListeners
|
|
1695
|
* @param el {HTMLElement|string} the element or element id to inspect
|
|
1696
|
* @param sType {string} optional type of listener to return. If
|
|
1697
|
* left out, all listeners will be returned
|
|
1698
|
* @return {Object} the listener. Contains the following fields:
|
|
1699
|
* type: (string) the type of event
|
|
1700
|
* fn: (function) the callback supplied to addListener
|
|
1701
|
* obj: (object) the custom object supplied to addListener
|
|
1702
|
* adjust: (boolean|object) whether or not to adjust the default scope
|
|
1703
|
* scope: (boolean) the derived scope based on the adjust parameter
|
|
1704
|
* index: (int) its position in the Event util listener cache
|
|
1705
|
* @static
|
|
1706
|
*/
|
|
1707
|
getListeners: function(el, sType) {
|
|
1708
|
var results=[], searchLists;
|
|
1709
|
if (!sType) {
|
|
1710
|
searchLists = [listeners, unloadListeners];
|
|
1711
|
} else if (sType === "unload") {
|
|
1712
|
searchLists = [unloadListeners];
|
|
1713
|
} else {
|
|
1714
|
searchLists = [listeners];
|
|
1715
|
}
|
|
1716
|
|
|
1717
|
var oEl = (YAHOO.lang.isString(el)) ? this.getEl(el) : el;
|
|
1718
|
|
|
1719
|
for (var j=0;j<searchLists.length; j=j+1) {
|
|
1720
|
var searchList = searchLists[j];
|
|
1721
|
if (searchList && searchList.length > 0) {
|
|
1722
|
for (var i=0,len=searchList.length; i<len ; ++i) {
|
|
1723
|
var l = searchList[i];
|
|
1724
|
if ( l && l[this.EL] === oEl &&
|
|
1725
|
(!sType || sType === l[this.TYPE]) ) {
|
|
1726
|
results.push({
|
|
1727
|
type: l[this.TYPE],
|
|
1728
|
fn: l[this.FN],
|
|
1729
|
obj: l[this.OBJ],
|
|
1730
|
adjust: l[this.OVERRIDE],
|
|
1731
|
scope: l[this.ADJ_SCOPE],
|
|
1732
|
index: i
|
|
1733
|
});
|
|
1734
|
}
|
|
1735
|
}
|
|
1736
|
}
|
|
1737
|
}
|
|
1738
|
|
|
1739
|
return (results.length) ? results : null;
|
|
1740
|
},
|
|
1741
|
|
|
1742
|
/**
|
|
1743
|
* Removes all listeners registered by pe.event. Called
|
|
1744
|
* automatically during the unload event.
|
|
1745
|
* @method _unload
|
|
1746
|
* @static
|
|
1747
|
* @private
|
|
1748
|
*/
|
|
1749
|
_unload: function(e) {
|
|
1750
|
|
|
1751
|
var EU = YAHOO.util.Event, i, j, l, len, index;
|
|
1752
|
|
|
1753
|
// execute and clear stored unload listeners
|
|
1754
|
for (i=0,len=unloadListeners.length; i<len; ++i) {
|
|
1755
|
l = unloadListeners[i];
|
|
1756
|
if (l) {
|
|
1757
|
var scope = window;
|
|
1758
|
if (l[EU.ADJ_SCOPE]) {
|
|
1759
|
if (l[EU.ADJ_SCOPE] === true) {
|
|
1760
|
scope = l[EU.UNLOAD_OBJ];
|
|
1761
|
} else {
|
|
1762
|
scope = l[EU.ADJ_SCOPE];
|
|
1763
|
}
|
|
1764
|
}
|
|
1765
|
l[EU.FN].call(scope, EU.getEvent(e, l[EU.EL]), l[EU.UNLOAD_OBJ] );
|
|
1766
|
unloadListeners[i] = null;
|
|
1767
|
l=null;
|
|
1768
|
scope=null;
|
|
1769
|
}
|
|
1770
|
}
|
|
1771
|
|
|
1772
|
unloadListeners = null;
|
|
1773
|
|
|
1774
|
// call clearAttributes or remove listeners to handle IE memory leaks
|
|
1775
|
if (YAHOO.env.ua.ie && listeners && listeners.length > 0) {
|
|
1776
|
j = listeners.length;
|
|
1777
|
while (j) {
|
|
1778
|
index = j-1;
|
|
1779
|
l = listeners[index];
|
|
1780
|
if (l) {
|
|
1781
|
//try {
|
|
1782
|
//l[EU.EL].clearAttributes(); // errors on window objects
|
|
1783
|
//} catch(ex) {
|
|
1784
|
EU.removeListener(l[EU.EL], l[EU.TYPE], l[EU.FN], index);
|
|
1785
|
//}
|
|
1786
|
}
|
|
1787
|
j--;
|
|
1788
|
}
|
|
1789
|
l=null;
|
|
1790
|
}
|
|
1791
|
|
|
1792
|
/*
|
|
1793
|
// remove all listeners
|
|
1794
|
if (listeners && listeners.length > 0) {
|
|
1795
|
j = listeners.length;
|
|
1796
|
while (j) {
|
|
1797
|
index = j-1;
|
|
1798
|
l = listeners[index];
|
|
1799
|
if (l) {
|
|
1800
|
EU.removeListener(l[EU.EL], l[EU.TYPE], l[EU.FN], index);
|
|
1801
|
}
|
|
1802
|
j = j - 1;
|
|
1803
|
}
|
|
1804
|
l=null;
|
|
1805
|
}
|
|
1806
|
*/
|
|
1807
|
|
|
1808
|
/*
|
|
1809
|
// kill legacy events
|
|
1810
|
for (i=0,len=legacyEvents.length; i<len; ++i) {
|
|
1811
|
// dereference the element
|
|
1812
|
//delete legacyEvents[i][0];
|
|
1813
|
legacyEvents[i][0] = null;
|
|
1814
|
|
|
1815
|
// delete the array item
|
|
1816
|
//delete legacyEvents[i];
|
|
1817
|
legacyEvents[i] = null;
|
|
1818
|
}
|
|
1819
|
|
|
1820
|
*/
|
|
1821
|
|
|
1822
|
legacyEvents = null;
|
|
1823
|
|
|
1824
|
EU._simpleRemove(window, "unload", EU._unload);
|
|
1825
|
|
|
1826
|
},
|
|
1827
|
|
|
1828
|
/**
|
|
1829
|
* Returns scrollLeft
|
|
1830
|
* @method _getScrollLeft
|
|
1831
|
* @static
|
|
1832
|
* @private
|
|
1833
|
*/
|
|
1834
|
_getScrollLeft: function() {
|
|
1835
|
return this._getScroll()[1];
|
|
1836
|
},
|
|
1837
|
|
|
1838
|
/**
|
|
1839
|
* Returns scrollTop
|
|
1840
|
* @method _getScrollTop
|
|
1841
|
* @static
|
|
1842
|
* @private
|
|
1843
|
*/
|
|
1844
|
_getScrollTop: function() {
|
|
1845
|
return this._getScroll()[0];
|
|
1846
|
},
|
|
1847
|
|
|
1848
|
/**
|
|
1849
|
* Returns the scrollTop and scrollLeft. Used to calculate the
|
|
1850
|
* pageX and pageY in Internet Explorer
|
|
1851
|
* @method _getScroll
|
|
1852
|
* @static
|
|
1853
|
* @private
|
|
1854
|
*/
|
|
1855
|
_getScroll: function() {
|
|
1856
|
var dd = document.documentElement, db = document.body;
|
|
1857
|
if (dd && (dd.scrollTop || dd.scrollLeft)) {
|
|
1858
|
return [dd.scrollTop, dd.scrollLeft];
|
|
1859
|
} else if (db) {
|
|
1860
|
return [db.scrollTop, db.scrollLeft];
|
|
1861
|
} else {
|
|
1862
|
return [0, 0];
|
|
1863
|
}
|
|
1864
|
},
|
|
1865
|
|
|
1866
|
/**
|
|
1867
|
* Used by old versions of CustomEvent, restored for backwards
|
|
1868
|
* compatibility
|
|
1869
|
* @method regCE
|
|
1870
|
* @private
|
|
1871
|
* @static
|
|
1872
|
* @deprecated still here for backwards compatibility
|
|
1873
|
*/
|
|
1874
|
regCE: function() {
|
|
1875
|
// does nothing
|
|
1876
|
},
|
|
1877
|
|
|
1878
|
/*
|
|
1879
|
testIEReady: function (){
|
|
1880
|
var n = document.createElement('p'), ready = false;
|
|
1881
|
try {
|
|
1882
|
// throws an error until the doc is ready
|
|
1883
|
n.doScroll('left');
|
|
1884
|
ready = true;
|
|
1885
|
} catch(ex){
|
|
1886
|
// document is not ready
|
|
1887
|
}
|
|
1888
|
|
|
1889
|
n = null;
|
|
1890
|
return ready;
|
|
1891
|
},
|
|
1892
|
*/
|
|
1893
|
|
|
1894
|
/**
|
|
1895
|
* Adds a DOM event directly without the caching, cleanup, scope adj, etc
|
|
1896
|
*
|
|
1897
|
* @method _simpleAdd
|
|
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
|
_simpleAdd: function () {
|
|
1906
|
if (window.addEventListener) {
|
|
1907
|
return function(el, sType, fn, capture) {
|
|
1908
|
el.addEventListener(sType, fn, (capture));
|
|
1909
|
};
|
|
1910
|
} else if (window.attachEvent) {
|
|
1911
|
return function(el, sType, fn, capture) {
|
|
1912
|
el.attachEvent("on" + sType, fn);
|
|
1913
|
};
|
|
1914
|
} else {
|
|
1915
|
return function(){};
|
|
1916
|
}
|
|
1917
|
}(),
|
|
1918
|
|
|
1919
|
/**
|
|
1920
|
* Basic remove listener
|
|
1921
|
*
|
|
1922
|
* @method _simpleRemove
|
|
1923
|
* @param {HTMLElement} el the element to bind the handler to
|
|
1924
|
* @param {string} sType the type of event handler
|
|
1925
|
* @param {function} fn the callback to invoke
|
|
1926
|
* @param {boolen} capture capture or bubble phase
|
|
1927
|
* @static
|
|
1928
|
* @private
|
|
1929
|
*/
|
|
1930
|
_simpleRemove: function() {
|
|
1931
|
if (window.removeEventListener) {
|
|
1932
|
return function (el, sType, fn, capture) {
|
|
1933
|
el.removeEventListener(sType, fn, (capture));
|
|
1934
|
};
|
|
1935
|
} else if (window.detachEvent) {
|
|
1936
|
return function (el, sType, fn) {
|
|
1937
|
el.detachEvent("on" + sType, fn);
|
|
1938
|
};
|
|
1939
|
} else {
|
|
1940
|
return function(){};
|
|
1941
|
}
|
|
1942
|
}()
|
|
1943
|
};
|
|
1944
|
|
|
1945
|
}();
|
|
1946
|
|
|
1947
|
(function() {
|
|
1948
|
var EU = YAHOO.util.Event;
|
|
1949
|
|
|
1950
|
/**
|
|
1951
|
* YAHOO.util.Event.on is an alias for addListener
|
|
1952
|
* @method on
|
|
1953
|
* @see addListener
|
|
1954
|
* @static
|
|
1955
|
*/
|
|
1956
|
EU.on = EU.addListener;
|
|
1957
|
|
|
1958
|
/////////////////////////////////////////////////////////////
|
|
1959
|
// DOMReady
|
|
1960
|
// based on work by: Dean Edwards/John Resig/Matthias Miller
|
|
1961
|
|
|
1962
|
// Internet Explorer: use the readyState of a defered script.
|
|
1963
|
// This isolates what appears to be a safe moment to manipulate
|
|
1964
|
// the DOM prior to when the document's readyState suggests
|
|
1965
|
// it is safe to do so.
|
|
1966
|
if (EU.isIE) {
|
|
1967
|
|
|
1968
|
// Process onAvailable/onContentReady items when when the
|
|
1969
|
// DOM is ready.
|
|
1970
|
YAHOO.util.Event.onDOMReady(
|
|
1971
|
YAHOO.util.Event._tryPreloadAttach,
|
|
1972
|
YAHOO.util.Event, true);
|
|
1973
|
|
|
1974
|
/*
|
|
1975
|
|
|
1976
|
//YAHOO.log("-" + document.readyState + "-");
|
|
1977
|
|
|
1978
|
var el, d=document, b=d.body;
|
|
1979
|
|
|
1980
|
// If the library is being injected after window.onload, it
|
|
1981
|
// is not safe to document.write the script tag. Detecting
|
|
1982
|
// this state doesn't appear possible, so we expect a flag
|
|
1983
|
// in YAHOO_config to be set if the library is being injected.
|
|
1984
|
if (("undefined" !== typeof YAHOO_config) && YAHOO_config.injecting) {
|
|
1985
|
|
|
1986
|
el = document.createElement("script");
|
|
1987
|
var p=d.getElementsByTagName("head")[0] || b;
|
|
1988
|
p.insertBefore(el, p.firstChild);
|
|
1989
|
|
|
1990
|
} else {
|
|
1991
|
//YAHOO.log("-dw-");
|
|
1992
|
d.write('<scr'+'ipt id="_yui_eu_dr" defer="true" src="//:"><'+'/script>');
|
|
1993
|
el=document.getElementById("_yui_eu_dr");
|
|
1994
|
}
|
|
1995
|
|
|
1996
|
|
|
1997
|
if (el) {
|
|
1998
|
el.onreadystatechange = function() {
|
|
1999
|
//YAHOO.log(";comp-" + this.readyState + ";");
|
|
2000
|
if ("complete" === this.readyState) {
|
|
2001
|
this.parentNode.removeChild(this);
|
|
2002
|
YAHOO.util.Event._ready();
|
|
2003
|
}
|
|
2004
|
};
|
|
2005
|
} else {
|
|
2006
|
// The library was likely injected into the page
|
|
2007
|
// rendering onDOMReady unreliable
|
|
2008
|
// YAHOO.util.Event._ready();
|
|
2009
|
}
|
|
2010
|
|
|
2011
|
el=null;
|
|
2012
|
|
|
2013
|
*/
|
|
2014
|
|
|
2015
|
/*
|
|
2016
|
(function (){
|
|
2017
|
var n = document.createElement('p');
|
|
2018
|
try {
|
|
2019
|
// throws an error if doc is not ready
|
|
2020
|
n.doScroll('left');
|
|
2021
|
n = null;
|
|
2022
|
YAHOO.util.Event._ready();
|
|
2023
|
} catch (ex){
|
|
2024
|
n = null;
|
|
2025
|
setTimeout(arguments.callee, YAHOO.util.Event.POLL_INTERVAL);
|
|
2026
|
}
|
|
2027
|
})();
|
|
2028
|
*/
|
|
2029
|
|
|
2030
|
EU._dri = setInterval(function() {
|
|
2031
|
var n = document.createElement('p');
|
|
2032
|
try {
|
|
2033
|
// throws an error if doc is not ready
|
|
2034
|
n.doScroll('left');
|
|
2035
|
clearInterval(EU._dri);
|
|
2036
|
EU._dri = null;
|
|
2037
|
EU._ready();
|
|
2038
|
n = null;
|
|
2039
|
} catch (ex) {
|
|
2040
|
n = null;
|
|
2041
|
}
|
|
2042
|
}, EU.POLL_INTERVAL);
|
|
2043
|
|
|
2044
|
|
|
2045
|
// Safari: The document's readyState in Safari currently will
|
|
2046
|
// change to loaded/complete before images are loaded.
|
|
2047
|
//} else if (EU.webkit) {
|
|
2048
|
} else if (EU.webkit) {
|
|
2049
|
|
|
2050
|
EU._dri = setInterval(function() {
|
|
2051
|
var rs=document.readyState;
|
|
2052
|
if ("loaded" == rs || "complete" == rs) {
|
|
2053
|
clearInterval(EU._dri);
|
|
2054
|
EU._dri = null;
|
|
2055
|
EU._ready();
|
|
2056
|
}
|
|
2057
|
}, EU.POLL_INTERVAL);
|
|
2058
|
|
|
2059
|
// FireFox and Opera: These browsers provide a event for this
|
|
2060
|
// moment.
|
|
2061
|
} else {
|
|
2062
|
|
|
2063
|
// @todo will this fire when the library is injected?
|
|
2064
|
|
|
2065
|
EU._simpleAdd(document, "DOMContentLoaded", EU._ready);
|
|
2066
|
|
|
2067
|
}
|
|
2068
|
/////////////////////////////////////////////////////////////
|
|
2069
|
|
|
2070
|
|
|
2071
|
EU._simpleAdd(window, "load", EU._load);
|
|
2072
|
EU._simpleAdd(window, "unload", EU._unload);
|
|
2073
|
EU._tryPreloadAttach();
|
|
2074
|
})();
|
|
2075
|
|
|
2076
|
}
|
|
2077
|
/**
|
|
2078
|
* EventProvider is designed to be used with YAHOO.augment to wrap
|
|
2079
|
* CustomEvents in an interface that allows events to be subscribed to
|
|
2080
|
* and fired by name. This makes it possible for implementing code to
|
|
2081
|
* subscribe to an event that either has not been created yet, or will
|
|
2082
|
* not be created at all.
|
|
2083
|
*
|
|
2084
|
* @Class EventProvider
|
|
2085
|
*/
|
|
2086
|
YAHOO.util.EventProvider = function() { };
|
|
2087
|
|
|
2088
|
YAHOO.util.EventProvider.prototype = {
|
|
2089
|
|
|
2090
|
/**
|
|
2091
|
* Private storage of custom events
|
|
2092
|
* @property __yui_events
|
|
2093
|
* @type Object[]
|
|
2094
|
* @private
|
|
2095
|
*/
|
|
2096
|
__yui_events: null,
|
|
2097
|
|
|
2098
|
/**
|
|
2099
|
* Private storage of custom event subscribers
|
|
2100
|
* @property __yui_subscribers
|
|
2101
|
* @type Object[]
|
|
2102
|
* @private
|
|
2103
|
*/
|
|
2104
|
__yui_subscribers: null,
|
|
2105
|
|
|
2106
|
/**
|
|
2107
|
* Subscribe to a CustomEvent by event type
|
|
2108
|
*
|
|
2109
|
* @method subscribe
|
|
2110
|
* @param p_type {string} the type, or name of the event
|
|
2111
|
* @param p_fn {function} the function to exectute when the event fires
|
|
2112
|
* @param p_obj {Object} An object to be passed along when the event
|
|
2113
|
* fires
|
|
2114
|
* @param p_override {boolean} If true, the obj passed in becomes the
|
|
2115
|
* execution scope of the listener
|
|
2116
|
*/
|
|
2117
|
subscribe: function(p_type, p_fn, p_obj, p_override) {
|
|
2118
|
|
|
2119
|
this.__yui_events = this.__yui_events || {};
|
|
2120
|
var ce = this.__yui_events[p_type];
|
|
2121
|
|
|
2122
|
if (ce) {
|
|
2123
|
ce.subscribe(p_fn, p_obj, p_override);
|
|
2124
|
} else {
|
|
2125
|
this.__yui_subscribers = this.__yui_subscribers || {};
|
|
2126
|
var subs = this.__yui_subscribers;
|
|
2127
|
if (!subs[p_type]) {
|
|
2128
|
subs[p_type] = [];
|
|
2129
|
}
|
|
2130
|
subs[p_type].push(
|
|
2131
|
{ fn: p_fn, obj: p_obj, override: p_override } );
|
|
2132
|
}
|
|
2133
|
},
|
|
2134
|
|
|
2135
|
/**
|
|
2136
|
* Unsubscribes one or more listeners the from the specified event
|
|
2137
|
* @method unsubscribe
|
|
2138
|
* @param p_type {string} The type, or name of the event. If the type
|
|
2139
|
* is not specified, it will attempt to remove
|
|
2140
|
* the listener from all hosted events.
|
|
2141
|
* @param p_fn {Function} The subscribed function to unsubscribe, if not
|
|
2142
|
* supplied, all subscribers will be removed.
|
|
2143
|
* @param p_obj {Object} The custom object passed to subscribe. This is
|
|
2144
|
* optional, but if supplied will be used to
|
|
2145
|
* disambiguate multiple listeners that are the same
|
|
2146
|
* (e.g., you subscribe many object using a function
|
|
2147
|
* that lives on the prototype)
|
|
2148
|
* @return {boolean} true if the subscriber was found and detached.
|
|
2149
|
*/
|
|
2150
|
unsubscribe: function(p_type, p_fn, p_obj) {
|
|
2151
|
this.__yui_events = this.__yui_events || {};
|
|
2152
|
var evts = this.__yui_events;
|
|
2153
|
if (p_type) {
|
|
2154
|
var ce = evts[p_type];
|
|
2155
|
if (ce) {
|
|
2156
|
return ce.unsubscribe(p_fn, p_obj);
|
|
2157
|
}
|
|
2158
|
} else {
|
|
2159
|
var ret = true;
|
|
2160
|
for (var i in evts) {
|
|
2161
|
if (YAHOO.lang.hasOwnProperty(evts, i)) {
|
|
2162
|
ret = ret && evts[i].unsubscribe(p_fn, p_obj);
|
|
2163
|
}
|
|
2164
|
}
|
|
2165
|
return ret;
|
|
2166
|
}
|
|
2167
|
|
|
2168
|
return false;
|
|
2169
|
},
|
|
2170
|
|
|
2171
|
/**
|
|
2172
|
* Removes all listeners from the specified event. If the event type
|
|
2173
|
* is not specified, all listeners from all hosted custom events will
|
|
2174
|
* be removed.
|
|
2175
|
* @method unsubscribeAll
|
|
2176
|
* @param p_type {string} The type, or name of the event
|
|
2177
|
*/
|
|
2178
|
unsubscribeAll: function(p_type) {
|
|
2179
|
return this.unsubscribe(p_type);
|
|
2180
|
},
|
|
2181
|
|
|
2182
|
/**
|
|
2183
|
* Creates a new custom event of the specified type. If a custom event
|
|
2184
|
* by that name already exists, it will not be re-created. In either
|
|
2185
|
* case the custom event is returned.
|
|
2186
|
*
|
|
2187
|
* @method createEvent
|
|
2188
|
*
|
|
2189
|
* @param p_type {string} the type, or name of the event
|
|
2190
|
* @param p_config {object} optional config params. Valid properties are:
|
|
2191
|
*
|
|
2192
|
* <ul>
|
|
2193
|
* <li>
|
|
2194
|
* scope: defines the default execution scope. If not defined
|
|
2195
|
* the default scope will be this instance.
|
|
2196
|
* </li>
|
|
2197
|
* <li>
|
|
2198
|
* silent: if true, the custom event will not generate log messages.
|
|
2199
|
* This is false by default.
|
|
2200
|
* </li>
|
|
2201
|
* <li>
|
|
2202
|
* onSubscribeCallback: specifies a callback to execute when the
|
|
2203
|
* event has a new subscriber. This will fire immediately for
|
|
2204
|
* each queued subscriber if any exist prior to the creation of
|
|
2205
|
* the event.
|
|
2206
|
* </li>
|
|
2207
|
* </ul>
|
|
2208
|
*
|
|
2209
|
* @return {CustomEvent} the custom event
|
|
2210
|
*
|
|
2211
|
*/
|
|
2212
|
createEvent: function(p_type, p_config) {
|
|
2213
|
|
|
2214
|
this.__yui_events = this.__yui_events || {};
|
|
2215
|
var opts = p_config || {};
|
|
2216
|
var events = this.__yui_events;
|
|
2217
|
|
|
2218
|
if (events[p_type]) {
|
|
2219
|
YAHOO.log("EventProvider createEvent skipped: '"+p_type+"' already exists");
|
|
2220
|
} else {
|
|
2221
|
|
|
2222
|
var scope = opts.scope || this;
|
|
2223
|
var silent = (opts.silent);
|
|
2224
|
|
|
2225
|
var ce = new YAHOO.util.CustomEvent(p_type, scope, silent,
|
|
2226
|
YAHOO.util.CustomEvent.FLAT);
|
|
2227
|
events[p_type] = ce;
|
|
2228
|
|
|
2229
|
if (opts.onSubscribeCallback) {
|
|
2230
|
ce.subscribeEvent.subscribe(opts.onSubscribeCallback);
|
|
2231
|
}
|
|
2232
|
|
|
2233
|
this.__yui_subscribers = this.__yui_subscribers || {};
|
|
2234
|
var qs = this.__yui_subscribers[p_type];
|
|
2235
|
|
|
2236
|
if (qs) {
|
|
2237
|
for (var i=0; i<qs.length; ++i) {
|
|
2238
|
ce.subscribe(qs[i].fn, qs[i].obj, qs[i].override);
|
|
2239
|
}
|
|
2240
|
}
|
|
2241
|
}
|
|
2242
|
|
|
2243
|
return events[p_type];
|
|
2244
|
},
|
|
2245
|
|
|
2246
|
|
|
2247
|
/**
|
|
2248
|
* Fire a custom event by name. The callback functions will be executed
|
|
2249
|
* from the scope specified when the event was created, and with the
|
|
2250
|
* following parameters:
|
|
2251
|
* <ul>
|
|
2252
|
* <li>The first argument fire() was executed with</li>
|
|
2253
|
* <li>The custom object (if any) that was passed into the subscribe()
|
|
2254
|
* method</li>
|
|
2255
|
* </ul>
|
|
2256
|
* If the custom event has not been explicitly created, it will be
|
|
2257
|
* created now with the default config, scoped to the host object
|
|
2258
|
* @method fireEvent
|
|
2259
|
* @param p_type {string} the type, or name of the event
|
|
2260
|
* @param arguments {Object*} an arbitrary set of parameters to pass to
|
|
2261
|
* the handler.
|
|
2262
|
* @return {boolean} the return value from CustomEvent.fire
|
|
2263
|
*
|
|
2264
|
*/
|
|
2265
|
fireEvent: function(p_type, arg1, arg2, etc) {
|
|
2266
|
|
|
2267
|
this.__yui_events = this.__yui_events || {};
|
|
2268
|
var ce = this.__yui_events[p_type];
|
|
2269
|
|
|
2270
|
if (!ce) {
|
|
2271
|
YAHOO.log(p_type + "event fired before it was created.");
|
|
2272
|
return null;
|
|
2273
|
}
|
|
2274
|
|
|
2275
|
var args = [];
|
|
2276
|
for (var i=1; i<arguments.length; ++i) {
|
|
2277
|
args.push(arguments[i]);
|
|
2278
|
}
|
|
2279
|
return ce.fire.apply(ce, args);
|
|
2280
|
},
|
|
2281
|
|
|
2282
|
/**
|
|
2283
|
* Returns true if the custom event of the provided type has been created
|
|
2284
|
* with createEvent.
|
|
2285
|
* @method hasEvent
|
|
2286
|
* @param type {string} the type, or name of the event
|
|
2287
|
*/
|
|
2288
|
hasEvent: function(type) {
|
|
2289
|
if (this.__yui_events) {
|
|
2290
|
if (this.__yui_events[type]) {
|
|
2291
|
return true;
|
|
2292
|
}
|
|
2293
|
}
|
|
2294
|
return false;
|
|
2295
|
}
|
|
2296
|
|
|
2297
|
};
|
|
2298
|
|
|
2299
|
/**
|
|
2300
|
* KeyListener is a utility that provides an easy interface for listening for
|
|
2301
|
* keydown/keyup events fired against DOM elements.
|
|
2302
|
* @namespace YAHOO.util
|
|
2303
|
* @class KeyListener
|
|
2304
|
* @constructor
|
|
2305
|
* @param {HTMLElement} attachTo The element or element ID to which the key
|
|
2306
|
* event should be attached
|
|
2307
|
* @param {String} attachTo The element or element ID to which the key
|
|
2308
|
* event should be attached
|
|
2309
|
* @param {Object} keyData The object literal representing the key(s)
|
|
2310
|
* to detect. Possible attributes are
|
|
2311
|
* shift(boolean), alt(boolean), ctrl(boolean)
|
|
2312
|
* and keys(either an int or an array of ints
|
|
2313
|
* representing keycodes).
|
|
2314
|
* @param {Function} handler The CustomEvent handler to fire when the
|
|
2315
|
* key event is detected
|
|
2316
|
* @param {Object} handler An object literal representing the handler.
|
|
2317
|
* @param {String} event Optional. The event (keydown or keyup) to
|
|
2318
|
* listen for. Defaults automatically to keydown.
|
|
2319
|
*
|
|
2320
|
* @knownissue the "keypress" event is completely broken in Safari 2.x and below.
|
|
2321
|
* the workaround is use "keydown" for key listening. However, if
|
|
2322
|
* it is desired to prevent the default behavior of the keystroke,
|
|
2323
|
* that can only be done on the keypress event. This makes key
|
|
2324
|
* handling quite ugly.
|
|
2325
|
* @knownissue keydown is also broken in Safari 2.x and below for the ESC key.
|
|
2326
|
* There currently is no workaround other than choosing another
|
|
2327
|
* key to listen for.
|
|
2328
|
*/
|
|
2329
|
YAHOO.util.KeyListener = function(attachTo, keyData, handler, event) {
|
|
2330
|
if (!attachTo) {
|
|
2331
|
YAHOO.log("No attachTo element specified", "error");
|
|
2332
|
} else if (!keyData) {
|
|
2333
|
YAHOO.log("No keyData specified", "error");
|
|
2334
|
} else if (!handler) {
|
|
2335
|
YAHOO.log("No handler specified", "error");
|
|
2336
|
}
|
|
2337
|
|
|
2338
|
if (!event) {
|
|
2339
|
event = YAHOO.util.KeyListener.KEYDOWN;
|
|
2340
|
}
|
|
2341
|
|
|
2342
|
/**
|
|
2343
|
* The CustomEvent fired internally when a key is pressed
|
|
2344
|
* @event keyEvent
|
|
2345
|
* @private
|
|
2346
|
* @param {Object} keyData The object literal representing the key(s) to
|
|
2347
|
* detect. Possible attributes are shift(boolean),
|
|
2348
|
* alt(boolean), ctrl(boolean) and keys(either an
|
|
2349
|
* int or an array of ints representing keycodes).
|
|
2350
|
*/
|
|
2351
|
var keyEvent = new YAHOO.util.CustomEvent("keyPressed");
|
|
2352
|
|
|
2353
|
/**
|
|
2354
|
* The CustomEvent fired when the KeyListener is enabled via the enable()
|
|
2355
|
* function
|
|
2356
|
* @event enabledEvent
|
|
2357
|
* @param {Object} keyData The object literal representing the key(s) to
|
|
2358
|
* detect. Possible attributes are shift(boolean),
|
|
2359
|
* alt(boolean), ctrl(boolean) and keys(either an
|
|
2360
|
* int or an array of ints representing keycodes).
|
|
2361
|
*/
|
|
2362
|
this.enabledEvent = new YAHOO.util.CustomEvent("enabled");
|
|
2363
|
|
|
2364
|
/**
|
|
2365
|
* The CustomEvent fired when the KeyListener is disabled via the
|
|
2366
|
* disable() function
|
|
2367
|
* @event disabledEvent
|
|
2368
|
* @param {Object} keyData The object literal representing the key(s) to
|
|
2369
|
* detect. Possible attributes are shift(boolean),
|
|
2370
|
* alt(boolean), ctrl(boolean) and keys(either an
|
|
2371
|
* int or an array of ints representing keycodes).
|
|
2372
|
*/
|
|
2373
|
this.disabledEvent = new YAHOO.util.CustomEvent("disabled");
|
|
2374
|
|
|
2375
|
if (typeof attachTo == 'string') {
|
|
2376
|
attachTo = document.getElementById(attachTo);
|
|
2377
|
}
|
|
2378
|
|
|
2379
|
if (typeof handler == 'function') {
|
|
2380
|
keyEvent.subscribe(handler);
|
|
2381
|
} else {
|
|
2382
|
keyEvent.subscribe(handler.fn, handler.scope, handler.correctScope);
|
|
2383
|
}
|
|
2384
|
|
|
2385
|
/**
|
|
2386
|
* Handles the key event when a key is pressed.
|
|
2387
|
* @method handleKeyPress
|
|
2388
|
* @param {DOMEvent} e The keypress DOM event
|
|
2389
|
* @param {Object} obj The DOM event scope object
|
|
2390
|
* @private
|
|
2391
|
*/
|
|
2392
|
function handleKeyPress(e, obj) {
|
|
2393
|
if (! keyData.shift) {
|
|
2394
|
keyData.shift = false;
|
|
2395
|
}
|
|
2396
|
if (! keyData.alt) {
|
|
2397
|
keyData.alt = false;
|
|
2398
|
}
|
|
2399
|
if (! keyData.ctrl) {
|
|
2400
|
keyData.ctrl = false;
|
|
2401
|
}
|
|
2402
|
|
|
2403
|
// check held down modifying keys first
|
|
2404
|
if (e.shiftKey == keyData.shift &&
|
|
2405
|
e.altKey == keyData.alt &&
|
|
2406
|
e.ctrlKey == keyData.ctrl) { // if we pass this, all modifiers match
|
|
2407
|
|
|
2408
|
var dataItem;
|
|
2409
|
|
|
2410
|
if (keyData.keys instanceof Array) {
|
|
2411
|
for (var i=0;i<keyData.keys.length;i++) {
|
|
2412
|
dataItem = keyData.keys[i];
|
|
2413
|
|
|
2414
|
if (dataItem == e.charCode ) {
|
|
2415
|
keyEvent.fire(e.charCode, e);
|
|
2416
|
break;
|
|
2417
|
} else if (dataItem == e.keyCode) {
|
|
2418
|
keyEvent.fire(e.keyCode, e);
|
|
2419
|
break;
|
|
2420
|
}
|
|
2421
|
}
|
|
2422
|
} else {
|
|
2423
|
dataItem = keyData.keys;
|
|
2424
|
if (dataItem == e.charCode ) {
|
|
2425
|
keyEvent.fire(e.charCode, e);
|
|
2426
|
} else if (dataItem == e.keyCode) {
|
|
2427
|
keyEvent.fire(e.keyCode, e);
|
|
2428
|
}
|
|
2429
|
}
|
|
2430
|
}
|
|
2431
|
}
|
|
2432
|
|
|
2433
|
/**
|
|
2434
|
* Enables the KeyListener by attaching the DOM event listeners to the
|
|
2435
|
* target DOM element
|
|
2436
|
* @method enable
|
|
2437
|
*/
|
|
2438
|
this.enable = function() {
|
|
2439
|
if (! this.enabled) {
|
|
2440
|
YAHOO.util.Event.addListener(attachTo, event, handleKeyPress);
|
|
2441
|
this.enabledEvent.fire(keyData);
|
|
2442
|
}
|
|
2443
|
/**
|
|
2444
|
* Boolean indicating the enabled/disabled state of the Tooltip
|
|
2445
|
* @property enabled
|
|
2446
|
* @type Boolean
|
|
2447
|
*/
|
|
2448
|
this.enabled = true;
|
|
2449
|
};
|
|
2450
|
|
|
2451
|
/**
|
|
2452
|
* Disables the KeyListener by removing the DOM event listeners from the
|
|
2453
|
* target DOM element
|
|
2454
|
* @method disable
|
|
2455
|
*/
|
|
2456
|
this.disable = function() {
|
|
2457
|
if (this.enabled) {
|
|
2458
|
YAHOO.util.Event.removeListener(attachTo, event, handleKeyPress);
|
|
2459
|
this.disabledEvent.fire(keyData);
|
|
2460
|
}
|
|
2461
|
this.enabled = false;
|
|
2462
|
};
|
|
2463
|
|
|
2464
|
/**
|
|
2465
|
* Returns a String representation of the object.
|
|
2466
|
* @method toString
|
|
2467
|
* @return {String} The string representation of the KeyListener
|
|
2468
|
*/
|
|
2469
|
this.toString = function() {
|
|
2470
|
return "KeyListener [" + keyData.keys + "] " + attachTo.tagName +
|
|
2471
|
(attachTo.id ? "[" + attachTo.id + "]" : "");
|
|
2472
|
};
|
|
2473
|
|
|
2474
|
};
|
|
2475
|
|
|
2476
|
/**
|
|
2477
|
* Constant representing the DOM "keydown" event.
|
|
2478
|
* @property YAHOO.util.KeyListener.KEYDOWN
|
|
2479
|
* @static
|
|
2480
|
* @final
|
|
2481
|
* @type String
|
|
2482
|
*/
|
|
2483
|
YAHOO.util.KeyListener.KEYDOWN = "keydown";
|
|
2484
|
|
|
2485
|
/**
|
|
2486
|
* Constant representing the DOM "keyup" event.
|
|
2487
|
* @property YAHOO.util.KeyListener.KEYUP
|
|
2488
|
* @static
|
|
2489
|
* @final
|
|
2490
|
* @type String
|
|
2491
|
*/
|
|
2492
|
YAHOO.util.KeyListener.KEYUP = "keyup";
|
|
2493
|
|
|
2494
|
/**
|
|
2495
|
* keycode constants for a subset of the special keys
|
|
2496
|
* @property KEY
|
|
2497
|
* @static
|
|
2498
|
* @final
|
|
2499
|
*/
|
|
2500
|
YAHOO.util.KeyListener.KEY = {
|
|
2501
|
ALT : 18,
|
|
2502
|
BACK_SPACE : 8,
|
|
2503
|
CAPS_LOCK : 20,
|
|
2504
|
CONTROL : 17,
|
|
2505
|
DELETE : 46,
|
|
2506
|
DOWN : 40,
|
|
2507
|
END : 35,
|
|
2508
|
ENTER : 13,
|
|
2509
|
ESCAPE : 27,
|
|
2510
|
HOME : 36,
|
|
2511
|
LEFT : 37,
|
|
2512
|
META : 224,
|
|
2513
|
NUM_LOCK : 144,
|
|
2514
|
PAGE_DOWN : 34,
|
|
2515
|
PAGE_UP : 33,
|
|
2516
|
PAUSE : 19,
|
|
2517
|
PRINTSCREEN : 44,
|
|
2518
|
RIGHT : 39,
|
|
2519
|
SCROLL_LOCK : 145,
|
|
2520
|
SHIFT : 16,
|
|
2521
|
SPACE : 32,
|
|
2522
|
TAB : 9,
|
|
2523
|
UP : 38
|
|
2524
|
};
|
|
2525
|
YAHOO.register("event", YAHOO.util.Event, {version: "2.4.1", build: "742"});
|