+++ /dev/null
-/*
-Copyright (c) 2009, Yahoo! Inc. All rights reserved.
-Code licensed under the BSD License:
-http://developer.yahoo.net/yui/license.txt
-version: 2.7.0
-*/
-
-/**
- * The CustomEvent class lets you define events for your application
- * that can be subscribed to by one or more independent component.
- *
- * @param {String} type The type of event, which is passed to the callback
- * when the event fires
- * @param {Object} context The context the event will fire from. "this" will
- * refer to this object in the callback. Default value:
- * the window object. The listener can override this.
- * @param {boolean} silent pass true to prevent the event from writing to
- * the debugsystem
- * @param {int} signature the signature that the custom event subscriber
- * will receive. YAHOO.util.CustomEvent.LIST or
- * YAHOO.util.CustomEvent.FLAT. The default is
- * YAHOO.util.CustomEvent.LIST.
- * @namespace YAHOO.util
- * @class CustomEvent
- * @constructor
- */
-YAHOO.util.CustomEvent = function(type, context, silent, signature) {
-
- /**
- * The type of event, returned to subscribers when the event fires
- * @property type
- * @type string
- */
- this.type = type;
-
- /**
- * The context the the event will fire from by default. Defaults to the window
- * obj
- * @property scope
- * @type object
- */
- this.scope = context || window;
-
- /**
- * By default all custom events are logged in the debug build, set silent
- * to true to disable debug outpu for this event.
- * @property silent
- * @type boolean
- */
- this.silent = silent;
-
- /**
- * Custom events support two styles of arguments provided to the event
- * subscribers.
- * <ul>
- * <li>YAHOO.util.CustomEvent.LIST:
- * <ul>
- * <li>param1: event name</li>
- * <li>param2: array of arguments sent to fire</li>
- * <li>param3: <optional> a custom object supplied by the subscriber</li>
- * </ul>
- * </li>
- * <li>YAHOO.util.CustomEvent.FLAT
- * <ul>
- * <li>param1: the first argument passed to fire. If you need to
- * pass multiple parameters, use and array or object literal</li>
- * <li>param2: <optional> a custom object supplied by the subscriber</li>
- * </ul>
- * </li>
- * </ul>
- * @property signature
- * @type int
- */
- this.signature = signature || YAHOO.util.CustomEvent.LIST;
-
- /**
- * The subscribers to this event
- * @property subscribers
- * @type Subscriber[]
- */
- this.subscribers = [];
-
- if (!this.silent) {
- }
-
- var onsubscribeType = "_YUICEOnSubscribe";
-
- // Only add subscribe events for events that are not generated by
- // CustomEvent
- if (type !== onsubscribeType) {
-
- /**
- * Custom events provide a custom event that fires whenever there is
- * a new subscriber to the event. This provides an opportunity to
- * handle the case where there is a non-repeating event that has
- * already fired has a new subscriber.
- *
- * @event subscribeEvent
- * @type YAHOO.util.CustomEvent
- * @param {Function} fn The function to execute
- * @param {Object} obj An object to be passed along when the event
- * fires defaults to the custom event
- * @param {boolean|Object} override If true, the obj passed in becomes
- * the execution context of the listener.
- * if an object, that object becomes the
- * the execution context. defaults to
- * the custom event
- */
- this.subscribeEvent =
- new YAHOO.util.CustomEvent(onsubscribeType, this, true);
-
- }
-
-
- /**
- * In order to make it possible to execute the rest of the subscriber
- * stack when one thows an exception, the subscribers exceptions are
- * caught. The most recent exception is stored in this property
- * @property lastError
- * @type Error
- */
- this.lastError = null;
-};
-
-/**
- * Subscriber listener sigature constant. The LIST type returns three
- * parameters: the event type, the array of args passed to fire, and
- * the optional custom object
- * @property YAHOO.util.CustomEvent.LIST
- * @static
- * @type int
- */
-YAHOO.util.CustomEvent.LIST = 0;
-
-/**
- * Subscriber listener sigature constant. The FLAT type returns two
- * parameters: the first argument passed to fire and the optional
- * custom object
- * @property YAHOO.util.CustomEvent.FLAT
- * @static
- * @type int
- */
-YAHOO.util.CustomEvent.FLAT = 1;
-
-YAHOO.util.CustomEvent.prototype = {
-
- /**
- * Subscribes the caller to this event
- * @method subscribe
- * @param {Function} fn The function to execute
- * @param {Object} obj An object to be passed along when the event
- * fires
- * @param {boolean|Object} overrideContext If true, the obj passed in becomes
- * the execution context of the listener.
- * if an object, that object becomes the
- * the execution context.
- */
- subscribe: function(fn, obj, overrideContext) {
-
- if (!fn) {
-throw new Error("Invalid callback for subscriber to '" + this.type + "'");
- }
-
- if (this.subscribeEvent) {
- this.subscribeEvent.fire(fn, obj, overrideContext);
- }
-
- this.subscribers.push( new YAHOO.util.Subscriber(fn, obj, overrideContext) );
- },
-
- /**
- * Unsubscribes subscribers.
- * @method unsubscribe
- * @param {Function} fn The subscribed function to remove, if not supplied
- * all will be removed
- * @param {Object} obj The custom object passed to subscribe. This is
- * optional, but if supplied will be used to
- * disambiguate multiple listeners that are the same
- * (e.g., you subscribe many object using a function
- * that lives on the prototype)
- * @return {boolean} True if the subscriber was found and detached.
- */
- unsubscribe: function(fn, obj) {
-
- if (!fn) {
- return this.unsubscribeAll();
- }
-
- var found = false;
- for (var i=0, len=this.subscribers.length; i<len; ++i) {
- var s = this.subscribers[i];
- if (s && s.contains(fn, obj)) {
- this._delete(i);
- found = true;
- }
- }
-
- return found;
- },
-
- /**
- * Notifies the subscribers. The callback functions will be executed
- * from the context specified when the event was created, and with the
- * following parameters:
- * <ul>
- * <li>The type of event</li>
- * <li>All of the arguments fire() was executed with as an array</li>
- * <li>The custom object (if any) that was passed into the subscribe()
- * method</li>
- * </ul>
- * @method fire
- * @param {Object*} arguments an arbitrary set of parameters to pass to
- * the handler.
- * @return {boolean} false if one of the subscribers returned false,
- * true otherwise
- */
- fire: function() {
-
- this.lastError = null;
-
- var errors = [],
- len=this.subscribers.length;
-
- if (!len && this.silent) {
- return true;
- }
-
- var args=[].slice.call(arguments, 0), ret=true, i, rebuild=false;
-
- if (!this.silent) {
- }
-
- // make a copy of the subscribers so that there are
- // no index problems if one subscriber removes another.
- var subs = this.subscribers.slice(), throwErrors = YAHOO.util.Event.throwErrors;
-
- for (i=0; i<len; ++i) {
- var s = subs[i];
- if (!s) {
- rebuild=true;
- } else {
- if (!this.silent) {
- }
-
- var scope = s.getScope(this.scope);
-
- if (this.signature == YAHOO.util.CustomEvent.FLAT) {
- var param = null;
- if (args.length > 0) {
- param = args[0];
- }
-
- try {
- ret = s.fn.call(scope, param, s.obj);
- } catch(e) {
- this.lastError = e;
- // errors.push(e);
- if (throwErrors) {
- throw e;
- }
- }
- } else {
- try {
- ret = s.fn.call(scope, this.type, args, s.obj);
- } catch(ex) {
- this.lastError = ex;
- if (throwErrors) {
- throw ex;
- }
- }
- }
-
- if (false === ret) {
- if (!this.silent) {
- }
-
- break;
- // return false;
- }
- }
- }
-
- return (ret !== false);
- },
-
- /**
- * Removes all listeners
- * @method unsubscribeAll
- * @return {int} The number of listeners unsubscribed
- */
- unsubscribeAll: function() {
- var l = this.subscribers.length, i;
- for (i=l-1; i>-1; i--) {
- this._delete(i);
- }
-
- this.subscribers=[];
-
- return l;
- },
-
- /**
- * @method _delete
- * @private
- */
- _delete: function(index) {
- var s = this.subscribers[index];
- if (s) {
- delete s.fn;
- delete s.obj;
- }
-
- // this.subscribers[index]=null;
- this.subscribers.splice(index, 1);
- },
-
- /**
- * @method toString
- */
- toString: function() {
- return "CustomEvent: " + "'" + this.type + "', " +
- "context: " + this.scope;
-
- }
-};
-
-/////////////////////////////////////////////////////////////////////
-
-/**
- * Stores the subscriber information to be used when the event fires.
- * @param {Function} fn The function to execute
- * @param {Object} obj An object to be passed along when the event fires
- * @param {boolean} overrideContext If true, the obj passed in becomes the execution
- * context of the listener
- * @class Subscriber
- * @constructor
- */
-YAHOO.util.Subscriber = function(fn, obj, overrideContext) {
-
- /**
- * The callback that will be execute when the event fires
- * @property fn
- * @type function
- */
- this.fn = fn;
-
- /**
- * An optional custom object that will passed to the callback when
- * the event fires
- * @property obj
- * @type object
- */
- this.obj = YAHOO.lang.isUndefined(obj) ? null : obj;
-
- /**
- * The default execution context for the event listener is defined when the
- * event is created (usually the object which contains the event).
- * By setting overrideContext to true, the execution context becomes the custom
- * object passed in by the subscriber. If overrideContext is an object, that
- * object becomes the context.
- * @property overrideContext
- * @type boolean|object
- */
- this.overrideContext = overrideContext;
-
-};
-
-/**
- * Returns the execution context for this listener. If overrideContext was set to true
- * the custom obj will be the context. If overrideContext is an object, that is the
- * context, otherwise the default context will be used.
- * @method getScope
- * @param {Object} defaultScope the context to use if this listener does not
- * override it.
- */
-YAHOO.util.Subscriber.prototype.getScope = function(defaultScope) {
- if (this.overrideContext) {
- if (this.overrideContext === true) {
- return this.obj;
- } else {
- return this.overrideContext;
- }
- }
- return defaultScope;
-};
-
-/**
- * Returns true if the fn and obj match this objects properties.
- * Used by the unsubscribe method to match the right subscriber.
- *
- * @method contains
- * @param {Function} fn the function to execute
- * @param {Object} obj an object to be passed along when the event fires
- * @return {boolean} true if the supplied arguments match this
- * subscriber's signature.
- */
-YAHOO.util.Subscriber.prototype.contains = function(fn, obj) {
- if (obj) {
- return (this.fn == fn && this.obj == obj);
- } else {
- return (this.fn == fn);
- }
-};
-
-/**
- * @method toString
- */
-YAHOO.util.Subscriber.prototype.toString = function() {
- return "Subscriber { obj: " + this.obj +
- ", overrideContext: " + (this.overrideContext || "no") + " }";
-};
-
-/**
- * The Event Utility provides utilities for managing DOM Events and tools
- * for building event systems
- *
- * @module event
- * @title Event Utility
- * @namespace YAHOO.util
- * @requires yahoo
- */
-
-// The first instance of Event will win if it is loaded more than once.
-// @TODO this needs to be changed so that only the state data that needs to
-// be preserved is kept, while methods are overwritten/added as needed.
-// This means that the module pattern can't be used.
-if (!YAHOO.util.Event) {
-
-/**
- * The event utility provides functions to add and remove event listeners,
- * event cleansing. It also tries to automatically remove listeners it
- * registers during the unload event.
- *
- * @class Event
- * @static
- */
- YAHOO.util.Event = function() {
-
- /**
- * True after the onload event has fired
- * @property loadComplete
- * @type boolean
- * @static
- * @private
- */
- var loadComplete = false;
-
- /**
- * Cache of wrapped listeners
- * @property listeners
- * @type array
- * @static
- * @private
- */
- var listeners = [];
-
- /**
- * User-defined unload function that will be fired before all events
- * are detached
- * @property unloadListeners
- * @type array
- * @static
- * @private
- */
- var unloadListeners = [];
-
- /**
- * Cache of DOM0 event handlers to work around issues with DOM2 events
- * in Safari
- * @property legacyEvents
- * @static
- * @private
- */
- var legacyEvents = [];
-
- /**
- * Listener stack for DOM0 events
- * @property legacyHandlers
- * @static
- * @private
- */
- var legacyHandlers = [];
-
- /**
- * The number of times to poll after window.onload. This number is
- * increased if additional late-bound handlers are requested after
- * the page load.
- * @property retryCount
- * @static
- * @private
- */
- var retryCount = 0;
-
- /**
- * onAvailable listeners
- * @property onAvailStack
- * @static
- * @private
- */
- var onAvailStack = [];
-
- /**
- * Lookup table for legacy events
- * @property legacyMap
- * @static
- * @private
- */
- var legacyMap = [];
-
- /**
- * Counter for auto id generation
- * @property counter
- * @static
- * @private
- */
- var counter = 0;
-
- /**
- * Normalized keycodes for webkit/safari
- * @property webkitKeymap
- * @type {int: int}
- * @private
- * @static
- * @final
- */
- var webkitKeymap = {
- 63232: 38, // up
- 63233: 40, // down
- 63234: 37, // left
- 63235: 39, // right
- 63276: 33, // page up
- 63277: 34, // page down
- 25: 9 // SHIFT-TAB (Safari provides a different key code in
- // this case, even though the shiftKey modifier is set)
- };
-
- // String constants used by the addFocusListener and removeFocusListener methods
- var _FOCUS = YAHOO.env.ua.ie ? "focusin" : "focus";
- var _BLUR = YAHOO.env.ua.ie ? "focusout" : "blur";
-
- return {
-
- /**
- * The number of times we should look for elements that are not
- * in the DOM at the time the event is requested after the document
- * has been loaded. The default is 2000@amp;20 ms, so it will poll
- * for 40 seconds or until all outstanding handlers are bound
- * (whichever comes first).
- * @property POLL_RETRYS
- * @type int
- * @static
- * @final
- */
- POLL_RETRYS: 2000,
-
- /**
- * The poll interval in milliseconds
- * @property POLL_INTERVAL
- * @type int
- * @static
- * @final
- */
- POLL_INTERVAL: 20,
-
- /**
- * Element to bind, int constant
- * @property EL
- * @type int
- * @static
- * @final
- */
- EL: 0,
-
- /**
- * Type of event, int constant
- * @property TYPE
- * @type int
- * @static
- * @final
- */
- TYPE: 1,
-
- /**
- * Function to execute, int constant
- * @property FN
- * @type int
- * @static
- * @final
- */
- FN: 2,
-
- /**
- * Function wrapped for context correction and cleanup, int constant
- * @property WFN
- * @type int
- * @static
- * @final
- */
- WFN: 3,
-
- /**
- * Object passed in by the user that will be returned as a
- * parameter to the callback, int constant. Specific to
- * unload listeners
- * @property OBJ
- * @type int
- * @static
- * @final
- */
- UNLOAD_OBJ: 3,
-
- /**
- * Adjusted context, either the element we are registering the event
- * on or the custom object passed in by the listener, int constant
- * @property ADJ_SCOPE
- * @type int
- * @static
- * @final
- */
- ADJ_SCOPE: 4,
-
- /**
- * The original obj passed into addListener
- * @property OBJ
- * @type int
- * @static
- * @final
- */
- OBJ: 5,
-
- /**
- * The original context parameter passed into addListener
- * @property OVERRIDE
- * @type int
- * @static
- * @final
- */
- OVERRIDE: 6,
-
- /**
- * addListener/removeListener can throw errors in unexpected scenarios.
- * These errors are suppressed, the method returns false, and this property
- * is set
- * @property lastError
- * @static
- * @type Error
- */
- lastError: null,
-
- /**
- * Safari detection
- * @property isSafari
- * @private
- * @static
- * @deprecated use YAHOO.env.ua.webkit
- */
- isSafari: YAHOO.env.ua.webkit,
-
- /**
- * webkit version
- * @property webkit
- * @type string
- * @private
- * @static
- * @deprecated use YAHOO.env.ua.webkit
- */
- webkit: YAHOO.env.ua.webkit,
-
- /**
- * IE detection
- * @property isIE
- * @private
- * @static
- * @deprecated use YAHOO.env.ua.ie
- */
- isIE: YAHOO.env.ua.ie,
-
- /**
- * poll handle
- * @property _interval
- * @static
- * @private
- */
- _interval: null,
-
- /**
- * document readystate poll handle
- * @property _dri
- * @static
- * @private
- */
- _dri: null,
-
- /**
- * True when the document is initially usable
- * @property DOMReady
- * @type boolean
- * @static
- */
- DOMReady: false,
-
- /**
- * Errors thrown by subscribers of custom events are caught
- * and the error message is written to the debug console. If
- * this property is set to true, it will also re-throw the
- * error.
- * @property throwErrors
- * @type boolean
- * @default false
- */
- throwErrors: false,
-
- /**
- * @method startInterval
- * @static
- * @private
- */
- startInterval: function() {
- if (!this._interval) {
- var self = this;
- var callback = function() { self._tryPreloadAttach(); };
- this._interval = setInterval(callback, this.POLL_INTERVAL);
- }
- },
-
- /**
- * Executes the supplied callback when the item with the supplied
- * id is found. This is meant to be used to execute behavior as
- * soon as possible as the page loads. If you use this after the
- * initial page load it will poll for a fixed time for the element.
- * The number of times it will poll and the frequency are
- * configurable. By default it will poll for 10 seconds.
- *
- * <p>The callback is executed with a single parameter:
- * the custom object parameter, if provided.</p>
- *
- * @method onAvailable
- *
- * @param {string||string[]} id the id of the element, or an array
- * of ids to look for.
- * @param {function} fn what to execute when the element is found.
- * @param {object} obj an optional object to be passed back as
- * a parameter to fn.
- * @param {boolean|object} overrideContext If set to true, fn will execute
- * in the context of obj, if set to an object it
- * will execute in the context of that object
- * @param checkContent {boolean} check child node readiness (onContentReady)
- * @static
- */
- onAvailable: function(id, fn, obj, overrideContext, checkContent) {
-
- var a = (YAHOO.lang.isString(id)) ? [id] : id;
-
- for (var i=0; i<a.length; i=i+1) {
- onAvailStack.push({id: a[i],
- fn: fn,
- obj: obj,
- overrideContext: overrideContext,
- checkReady: checkContent });
- }
-
- retryCount = this.POLL_RETRYS;
-
- this.startInterval();
- },
-
- /**
- * Works the same way as onAvailable, but additionally checks the
- * state of sibling elements to determine if the content of the
- * available element is safe to modify.
- *
- * <p>The callback is executed with a single parameter:
- * the custom object parameter, if provided.</p>
- *
- * @method onContentReady
- *
- * @param {string} id the id of the element to look for.
- * @param {function} fn what to execute when the element is ready.
- * @param {object} obj an optional object to be passed back as
- * a parameter to fn.
- * @param {boolean|object} overrideContext If set to true, fn will execute
- * in the context of obj. If an object, fn will
- * exectute in the context of that object
- *
- * @static
- */
- onContentReady: function(id, fn, obj, overrideContext) {
- this.onAvailable(id, fn, obj, overrideContext, true);
- },
-
- /**
- * Executes the supplied callback when the DOM is first usable. This
- * will execute immediately if called after the DOMReady event has
- * fired. @todo the DOMContentReady event does not fire when the
- * script is dynamically injected into the page. This means the
- * DOMReady custom event will never fire in FireFox or Opera when the
- * library is injected. It _will_ fire in Safari, and the IE
- * implementation would allow for us to fire it if the defered script
- * is not available. We want this to behave the same in all browsers.
- * Is there a way to identify when the script has been injected
- * instead of included inline? Is there a way to know whether the
- * window onload event has fired without having had a listener attached
- * to it when it did so?
- *
- * <p>The callback is a CustomEvent, so the signature is:</p>
- * <p>type <string>, args <array>, customobject <object></p>
- * <p>For DOMReady events, there are no fire argments, so the
- * signature is:</p>
- * <p>"DOMReady", [], obj</p>
- *
- *
- * @method onDOMReady
- *
- * @param {function} fn what to execute when the element is found.
- * @param {object} obj an optional object to be passed back as
- * a parameter to fn.
- * @param {boolean|object} overrideContext If set to true, fn will execute
- * in the context of obj, if set to an object it
- * will execute in the context of that object
- *
- * @static
- */
- onDOMReady: function(fn, obj, overrideContext) {
- if (this.DOMReady) {
- setTimeout(function() {
- var s = window;
- if (overrideContext) {
- if (overrideContext === true) {
- s = obj;
- } else {
- s = overrideContext;
- }
- }
- fn.call(s, "DOMReady", [], obj);
- }, 0);
- } else {
- this.DOMReadyEvent.subscribe(fn, obj, overrideContext);
- }
- },
-
-
- /**
- * Appends an event handler
- *
- * @method _addListener
- *
- * @param {String|HTMLElement|Array|NodeList} el An id, an element
- * reference, or a collection of ids and/or elements to assign the
- * listener to.
- * @param {String} sType The type of event to append
- * @param {Function} fn The method the event invokes
- * @param {Object} obj An arbitrary object that will be
- * passed as a parameter to the handler
- * @param {Boolean|object} overrideContext If true, the obj passed in becomes
- * the execution context of the listener. If an
- * object, this object becomes the execution
- * context.
- * @param {boolen} capture capture or bubble phase
- * @return {Boolean} True if the action was successful or defered,
- * false if one or more of the elements
- * could not have the listener attached,
- * or if the operation throws an exception.
- * @private
- * @static
- */
- _addListener: function(el, sType, fn, obj, overrideContext, bCapture) {
-
- if (!fn || !fn.call) {
- return false;
- }
-
- // The el argument can be an array of elements or element ids.
- if ( this._isValidCollection(el)) {
- var ok = true;
- for (var i=0,len=el.length; i<len; ++i) {
- ok = this.on(el[i],
- sType,
- fn,
- obj,
- overrideContext) && ok;
- }
- return ok;
-
- } else if (YAHOO.lang.isString(el)) {
- var oEl = this.getEl(el);
- // If the el argument is a string, we assume it is
- // actually the id of the element. If the page is loaded
- // we convert el to the actual element, otherwise we
- // defer attaching the event until onload event fires
-
- // check to see if we need to delay hooking up the event
- // until after the page loads.
- if (oEl) {
- el = oEl;
- } else {
- // defer adding the event until the element is available
- this.onAvailable(el, function() {
- YAHOO.util.Event.on(el, sType, fn, obj, overrideContext);
- });
-
- return true;
- }
- }
-
- // Element should be an html element or an array if we get
- // here.
- if (!el) {
- return false;
- }
-
- // we need to make sure we fire registered unload events
- // prior to automatically unhooking them. So we hang on to
- // these instead of attaching them to the window and fire the
- // handles explicitly during our one unload event.
- if ("unload" == sType && obj !== this) {
- unloadListeners[unloadListeners.length] =
- [el, sType, fn, obj, overrideContext];
- return true;
- }
-
-
- // if the user chooses to override the context, we use the custom
- // object passed in, otherwise the executing context will be the
- // HTML element that the event is registered on
- var context = el;
- if (overrideContext) {
- if (overrideContext === true) {
- context = obj;
- } else {
- context = overrideContext;
- }
- }
-
- // wrap the function so we can return the obj object when
- // the event fires;
- var wrappedFn = function(e) {
- return fn.call(context, YAHOO.util.Event.getEvent(e, el),
- obj);
- };
-
- var li = [el, sType, fn, wrappedFn, context, obj, overrideContext];
- var index = listeners.length;
- // cache the listener so we can try to automatically unload
- listeners[index] = li;
-
- if (this.useLegacyEvent(el, sType)) {
- var legacyIndex = this.getLegacyIndex(el, sType);
-
- // Add a new dom0 wrapper if one is not detected for this
- // element
- if ( legacyIndex == -1 ||
- el != legacyEvents[legacyIndex][0] ) {
-
- legacyIndex = legacyEvents.length;
- legacyMap[el.id + sType] = legacyIndex;
-
- // cache the signature for the DOM0 event, and
- // include the existing handler for the event, if any
- legacyEvents[legacyIndex] =
- [el, sType, el["on" + sType]];
- legacyHandlers[legacyIndex] = [];
-
- el["on" + sType] =
- function(e) {
- YAHOO.util.Event.fireLegacyEvent(
- YAHOO.util.Event.getEvent(e), legacyIndex);
- };
- }
-
- // add a reference to the wrapped listener to our custom
- // stack of events
- //legacyHandlers[legacyIndex].push(index);
- legacyHandlers[legacyIndex].push(li);
-
- } else {
- try {
- this._simpleAdd(el, sType, wrappedFn, bCapture);
- } catch(ex) {
- // handle an error trying to attach an event. If it fails
- // we need to clean up the cache
- this.lastError = ex;
- this.removeListener(el, sType, fn);
- return false;
- }
- }
-
- return true;
-
- },
-
-
- /**
- * Appends an event handler
- *
- * @method addListener
- *
- * @param {String|HTMLElement|Array|NodeList} el An id, an element
- * reference, or a collection of ids and/or elements to assign the
- * listener to.
- * @param {String} sType The type of event to append
- * @param {Function} fn The method the event invokes
- * @param {Object} obj An arbitrary object that will be
- * passed as a parameter to the handler
- * @param {Boolean|object} overrideContext If true, the obj passed in becomes
- * the execution context of the listener. If an
- * object, this object becomes the execution
- * context.
- * @return {Boolean} True if the action was successful or defered,
- * false if one or more of the elements
- * could not have the listener attached,
- * or if the operation throws an exception.
- * @static
- */
- addListener: function (el, sType, fn, obj, overrideContext) {
- return this._addListener(el, sType, fn, obj, overrideContext, false);
- },
-
- /**
- * Appends a focus event handler. (The focusin event is used for Internet Explorer,
- * the focus, capture-event for Opera, WebKit.)
- *
- * @method addFocusListener
- *
- * @param {String|HTMLElement|Array|NodeList} el An id, an element
- * reference, or a collection of ids and/or elements to assign the
- * listener to.
- * @param {Function} fn The method the event invokes
- * @param {Object} obj An arbitrary object that will be
- * passed as a parameter to the handler
- * @param {Boolean|object} overrideContext If true, the obj passed in becomes
- * the execution context of the listener. If an
- * object, this object becomes the execution
- * context.
- * @return {Boolean} True if the action was successful or defered,
- * false if one or more of the elements
- * could not have the listener attached,
- * or if the operation throws an exception.
- * @static
- */
- addFocusListener: function (el, fn, obj, overrideContext) {
- return this._addListener(el, _FOCUS, fn, obj, overrideContext, true);
- },
-
-
- /**
- * Removes a focus event listener
- *
- * @method removeListener
- *
- * @param {String|HTMLElement|Array|NodeList} el An id, an element
- * reference, or a collection of ids and/or elements to remove
- * the listener from.
- * @param {Function} fn the method the event invokes. If fn is
- * undefined, then all event handlers for the type of event are
- * removed.
- * @return {boolean} true if the unbind was successful, false
- * otherwise.
- * @static
- */
- removeFocusListener: function (el, fn) {
- return this.removeListener(el, _FOCUS, fn);
- },
-
- /**
- * Appends a blur event handler. (The focusout event is used for Internet Explorer,
- * the focusout, capture-event for Opera, WebKit.)
- *
- * @method addBlurListener
- *
- * @param {String|HTMLElement|Array|NodeList} el An id, an element
- * reference, or a collection of ids and/or elements to assign the
- * listener to.
- * @param {Function} fn The method the event invokes
- * @param {Object} obj An arbitrary object that will be
- * passed as a parameter to the handler
- * @param {Boolean|object} overrideContext If true, the obj passed in becomes
- * the execution context of the listener. If an
- * object, this object becomes the execution
- * context.
- * @return {Boolean} True if the action was successful or defered,
- * false if one or more of the elements
- * could not have the listener attached,
- * or if the operation throws an exception.
- * @static
- */
- addBlurListener: function (el, fn, obj, overrideContext) {
- return this._addListener(el, _BLUR, fn, obj, overrideContext, true);
- },
-
- /**
- * Removes a blur event listener
- *
- * @method removeListener
- *
- * @param {String|HTMLElement|Array|NodeList} el An id, an element
- * reference, or a collection of ids and/or elements to remove
- * the listener from.
- * @param {Function} fn the method the event invokes. If fn is
- * undefined, then all event handlers for the type of event are
- * removed.
- * @return {boolean} true if the unbind was successful, false
- * otherwise.
- * @static
- */
- removeBlurListener: function (el, fn) {
-
- return this.removeListener(el, _BLUR, fn);
-
- },
-
- /**
- * When using legacy events, the handler is routed to this object
- * so we can fire our custom listener stack.
- * @method fireLegacyEvent
- * @static
- * @private
- */
- fireLegacyEvent: function(e, legacyIndex) {
- var ok=true, le, lh, li, context, ret;
-
- lh = legacyHandlers[legacyIndex].slice();
- for (var i=0, len=lh.length; i<len; ++i) {
- // for (var i in lh.length) {
- li = lh[i];
- if ( li && li[this.WFN] ) {
- context = li[this.ADJ_SCOPE];
- ret = li[this.WFN].call(context, e);
- ok = (ok && ret);
- }
- }
-
- // Fire the original handler if we replaced one. We fire this
- // after the other events to keep stopPropagation/preventDefault
- // that happened in the DOM0 handler from touching our DOM2
- // substitute
- le = legacyEvents[legacyIndex];
- if (le && le[2]) {
- le[2](e);
- }
-
- return ok;
- },
-
- /**
- * Returns the legacy event index that matches the supplied
- * signature
- * @method getLegacyIndex
- * @static
- * @private
- */
- getLegacyIndex: function(el, sType) {
- var key = this.generateId(el) + sType;
- if (typeof legacyMap[key] == "undefined") {
- return -1;
- } else {
- return legacyMap[key];
- }
- },
-
- /**
- * Logic that determines when we should automatically use legacy
- * events instead of DOM2 events. Currently this is limited to old
- * Safari browsers with a broken preventDefault
- * @method useLegacyEvent
- * @static
- * @private
- */
- useLegacyEvent: function(el, sType) {
-return (this.webkit && this.webkit < 419 && ("click"==sType || "dblclick"==sType));
- },
-
- /**
- * Removes an event listener
- *
- * @method removeListener
- *
- * @param {String|HTMLElement|Array|NodeList} el An id, an element
- * reference, or a collection of ids and/or elements to remove
- * the listener from.
- * @param {String} sType the type of event to remove.
- * @param {Function} fn the method the event invokes. If fn is
- * undefined, then all event handlers for the type of event are
- * removed.
- * @return {boolean} true if the unbind was successful, false
- * otherwise.
- * @static
- */
- removeListener: function(el, sType, fn) {
- var i, len, li;
-
- // The el argument can be a string
- if (typeof el == "string") {
- el = this.getEl(el);
- // The el argument can be an array of elements or element ids.
- } else if ( this._isValidCollection(el)) {
- var ok = true;
- for (i=el.length-1; i>-1; i--) {
- ok = ( this.removeListener(el[i], sType, fn) && ok );
- }
- return ok;
- }
-
- if (!fn || !fn.call) {
- //return false;
- return this.purgeElement(el, false, sType);
- }
-
- if ("unload" == sType) {
-
- for (i=unloadListeners.length-1; i>-1; i--) {
- li = unloadListeners[i];
- if (li &&
- li[0] == el &&
- li[1] == sType &&
- li[2] == fn) {
- unloadListeners.splice(i, 1);
- // unloadListeners[i]=null;
- return true;
- }
- }
-
- return false;
- }
-
- var cacheItem = null;
-
- // The index is a hidden parameter; needed to remove it from
- // the method signature because it was tempting users to
- // try and take advantage of it, which is not possible.
- var index = arguments[3];
-
- if ("undefined" === typeof index) {
- index = this._getCacheIndex(el, sType, fn);
- }
-
- if (index >= 0) {
- cacheItem = listeners[index];
- }
-
- if (!el || !cacheItem) {
- return false;
- }
-
-
- if (this.useLegacyEvent(el, sType)) {
- var legacyIndex = this.getLegacyIndex(el, sType);
- var llist = legacyHandlers[legacyIndex];
- if (llist) {
- for (i=0, len=llist.length; i<len; ++i) {
- // for (i in llist.length) {
- li = llist[i];
- if (li &&
- li[this.EL] == el &&
- li[this.TYPE] == sType &&
- li[this.FN] == fn) {
- llist.splice(i, 1);
- // llist[i]=null;
- break;
- }
- }
- }
-
- } else {
- try {
- this._simpleRemove(el, sType, cacheItem[this.WFN], false);
- } catch(ex) {
- this.lastError = ex;
- return false;
- }
- }
-
- // removed the wrapped handler
- delete listeners[index][this.WFN];
- delete listeners[index][this.FN];
- listeners.splice(index, 1);
- // listeners[index]=null;
-
- return true;
-
- },
-
- /**
- * Returns the event's target element. Safari sometimes provides
- * a text node, and this is automatically resolved to the text
- * node's parent so that it behaves like other browsers.
- * @method getTarget
- * @param {Event} ev the event
- * @param {boolean} resolveTextNode when set to true the target's
- * parent will be returned if the target is a
- * text node. @deprecated, the text node is
- * now resolved automatically
- * @return {HTMLElement} the event's target
- * @static
- */
- getTarget: function(ev, resolveTextNode) {
- var t = ev.target || ev.srcElement;
- return this.resolveTextNode(t);
- },
-
- /**
- * In some cases, some browsers will return a text node inside
- * the actual element that was targeted. This normalizes the
- * return value for getTarget and getRelatedTarget.
- * @method resolveTextNode
- * @param {HTMLElement} node node to resolve
- * @return {HTMLElement} the normized node
- * @static
- */
- resolveTextNode: function(n) {
- try {
- if (n && 3 == n.nodeType) {
- return n.parentNode;
- }
- } catch(e) { }
-
- return n;
- },
-
- /**
- * Returns the event's pageX
- * @method getPageX
- * @param {Event} ev the event
- * @return {int} the event's pageX
- * @static
- */
- getPageX: function(ev) {
- var x = ev.pageX;
- if (!x && 0 !== x) {
- x = ev.clientX || 0;
-
- if ( this.isIE ) {
- x += this._getScrollLeft();
- }
- }
-
- return x;
- },
-
- /**
- * Returns the event's pageY
- * @method getPageY
- * @param {Event} ev the event
- * @return {int} the event's pageY
- * @static
- */
- getPageY: function(ev) {
- var y = ev.pageY;
- if (!y && 0 !== y) {
- y = ev.clientY || 0;
-
- if ( this.isIE ) {
- y += this._getScrollTop();
- }
- }
-
-
- return y;
- },
-
- /**
- * Returns the pageX and pageY properties as an indexed array.
- * @method getXY
- * @param {Event} ev the event
- * @return {[x, y]} the pageX and pageY properties of the event
- * @static
- */
- getXY: function(ev) {
- return [this.getPageX(ev), this.getPageY(ev)];
- },
-
- /**
- * Returns the event's related target
- * @method getRelatedTarget
- * @param {Event} ev the event
- * @return {HTMLElement} the event's relatedTarget
- * @static
- */
- getRelatedTarget: function(ev) {
- var t = ev.relatedTarget;
- if (!t) {
- if (ev.type == "mouseout") {
- t = ev.toElement;
- } else if (ev.type == "mouseover") {
- t = ev.fromElement;
- }
- }
-
- return this.resolveTextNode(t);
- },
-
- /**
- * Returns the time of the event. If the time is not included, the
- * event is modified using the current time.
- * @method getTime
- * @param {Event} ev the event
- * @return {Date} the time of the event
- * @static
- */
- getTime: function(ev) {
- if (!ev.time) {
- var t = new Date().getTime();
- try {
- ev.time = t;
- } catch(ex) {
- this.lastError = ex;
- return t;
- }
- }
-
- return ev.time;
- },
-
- /**
- * Convenience method for stopPropagation + preventDefault
- * @method stopEvent
- * @param {Event} ev the event
- * @static
- */
- stopEvent: function(ev) {
- this.stopPropagation(ev);
- this.preventDefault(ev);
- },
-
- /**
- * Stops event propagation
- * @method stopPropagation
- * @param {Event} ev the event
- * @static
- */
- stopPropagation: function(ev) {
- if (ev.stopPropagation) {
- ev.stopPropagation();
- } else {
- ev.cancelBubble = true;
- }
- },
-
- /**
- * Prevents the default behavior of the event
- * @method preventDefault
- * @param {Event} ev the event
- * @static
- */
- preventDefault: function(ev) {
- if (ev.preventDefault) {
- ev.preventDefault();
- } else {
- ev.returnValue = false;
- }
- },
-
- /**
- * Finds the event in the window object, the caller's arguments, or
- * in the arguments of another method in the callstack. This is
- * executed automatically for events registered through the event
- * manager, so the implementer should not normally need to execute
- * this function at all.
- * @method getEvent
- * @param {Event} e the event parameter from the handler
- * @param {HTMLElement} boundEl the element the listener is attached to
- * @return {Event} the event
- * @static
- */
- getEvent: function(e, boundEl) {
- var ev = e || window.event;
-
- if (!ev) {
- var c = this.getEvent.caller;
- while (c) {
- ev = c.arguments[0];
- if (ev && Event == ev.constructor) {
- break;
- }
- c = c.caller;
- }
- }
-
- return ev;
- },
-
- /**
- * Returns the charcode for an event
- * @method getCharCode
- * @param {Event} ev the event
- * @return {int} the event's charCode
- * @static
- */
- getCharCode: function(ev) {
- var code = ev.keyCode || ev.charCode || 0;
-
- // webkit key normalization
- if (YAHOO.env.ua.webkit && (code in webkitKeymap)) {
- code = webkitKeymap[code];
- }
- return code;
- },
-
- /**
- * Locating the saved event handler data by function ref
- *
- * @method _getCacheIndex
- * @static
- * @private
- */
- _getCacheIndex: function(el, sType, fn) {
- for (var i=0, l=listeners.length; i<l; i=i+1) {
- var li = listeners[i];
- if ( li &&
- li[this.FN] == fn &&
- li[this.EL] == el &&
- li[this.TYPE] == sType ) {
- return i;
- }
- }
-
- return -1;
- },
-
- /**
- * Generates an unique ID for the element if it does not already
- * have one.
- * @method generateId
- * @param el the element to create the id for
- * @return {string} the resulting id of the element
- * @static
- */
- generateId: function(el) {
- var id = el.id;
-
- if (!id) {
- id = "yuievtautoid-" + counter;
- ++counter;
- el.id = id;
- }
-
- return id;
- },
-
-
- /**
- * We want to be able to use getElementsByTagName as a collection
- * to attach a group of events to. Unfortunately, different
- * browsers return different types of collections. This function
- * tests to determine if the object is array-like. It will also
- * fail if the object is an array, but is empty.
- * @method _isValidCollection
- * @param o the object to test
- * @return {boolean} true if the object is array-like and populated
- * @static
- * @private
- */
- _isValidCollection: function(o) {
- try {
- return ( o && // o is something
- typeof o !== "string" && // o is not a string
- o.length && // o is indexed
- !o.tagName && // o is not an HTML element
- !o.alert && // o is not a window
- typeof o[0] !== "undefined" );
- } catch(ex) {
- return false;
- }
-
- },
-
- /**
- * @private
- * @property elCache
- * DOM element cache
- * @static
- * @deprecated Elements are not cached due to issues that arise when
- * elements are removed and re-added
- */
- elCache: {},
-
- /**
- * We cache elements bound by id because when the unload event
- * fires, we can no longer use document.getElementById
- * @method getEl
- * @static
- * @private
- * @deprecated Elements are not cached any longer
- */
- getEl: function(id) {
- return (typeof id === "string") ? document.getElementById(id) : id;
- },
-
- /**
- * Clears the element cache
- * @deprecated Elements are not cached any longer
- * @method clearCache
- * @static
- * @private
- */
- clearCache: function() { },
-
- /**
- * Custom event the fires when the dom is initially usable
- * @event DOMReadyEvent
- */
- DOMReadyEvent: new YAHOO.util.CustomEvent("DOMReady", this),
-
- /**
- * hook up any deferred listeners
- * @method _load
- * @static
- * @private
- */
- _load: function(e) {
-
- if (!loadComplete) {
- loadComplete = true;
- var EU = YAHOO.util.Event;
-
- // Just in case DOMReady did not go off for some reason
- EU._ready();
-
- // Available elements may not have been detected before the
- // window load event fires. Try to find them now so that the
- // the user is more likely to get the onAvailable notifications
- // before the window load notification
- EU._tryPreloadAttach();
-
- }
- },
-
- /**
- * Fires the DOMReady event listeners the first time the document is
- * usable.
- * @method _ready
- * @static
- * @private
- */
- _ready: function(e) {
- var EU = YAHOO.util.Event;
- if (!EU.DOMReady) {
- EU.DOMReady=true;
-
- // Fire the content ready custom event
- EU.DOMReadyEvent.fire();
-
- // Remove the DOMContentLoaded (FF/Opera)
- EU._simpleRemove(document, "DOMContentLoaded", EU._ready);
- }
- },
-
- /**
- * Polling function that runs before the onload event fires,
- * attempting to attach to DOM Nodes as soon as they are
- * available
- * @method _tryPreloadAttach
- * @static
- * @private
- */
- _tryPreloadAttach: function() {
-
- if (onAvailStack.length === 0) {
- retryCount = 0;
- if (this._interval) {
- clearInterval(this._interval);
- this._interval = null;
- }
- return;
- }
-
- if (this.locked) {
- return;
- }
-
- if (this.isIE) {
- // Hold off if DOMReady has not fired and check current
- // readyState to protect against the IE operation aborted
- // issue.
- if (!this.DOMReady) {
- this.startInterval();
- return;
- }
- }
-
- this.locked = true;
-
-
- // keep trying until after the page is loaded. We need to
- // check the page load state prior to trying to bind the
- // elements so that we can be certain all elements have been
- // tested appropriately
- var tryAgain = !loadComplete;
- if (!tryAgain) {
- tryAgain = (retryCount > 0 && onAvailStack.length > 0);
- }
-
- // onAvailable
- var notAvail = [];
-
- var executeItem = function (el, item) {
- var context = el;
- if (item.overrideContext) {
- if (item.overrideContext === true) {
- context = item.obj;
- } else {
- context = item.overrideContext;
- }
- }
- item.fn.call(context, item.obj);
- };
-
- var i, len, item, el, ready=[];
-
- // onAvailable onContentReady
- for (i=0, len=onAvailStack.length; i<len; i=i+1) {
- item = onAvailStack[i];
- if (item) {
- el = this.getEl(item.id);
- if (el) {
- if (item.checkReady) {
- if (loadComplete || el.nextSibling || !tryAgain) {
- ready.push(item);
- onAvailStack[i] = null;
- }
- } else {
- executeItem(el, item);
- onAvailStack[i] = null;
- }
- } else {
- notAvail.push(item);
- }
- }
- }
-
- // make sure onContentReady fires after onAvailable
- for (i=0, len=ready.length; i<len; i=i+1) {
- item = ready[i];
- executeItem(this.getEl(item.id), item);
- }
-
-
- retryCount--;
-
- if (tryAgain) {
- for (i=onAvailStack.length-1; i>-1; i--) {
- item = onAvailStack[i];
- if (!item || !item.id) {
- onAvailStack.splice(i, 1);
- }
- }
-
- this.startInterval();
- } else {
- if (this._interval) {
- clearInterval(this._interval);
- this._interval = null;
- }
- }
-
- this.locked = false;
-
- },
-
- /**
- * Removes all listeners attached to the given element via addListener.
- * Optionally, the node's children can also be purged.
- * Optionally, you can specify a specific type of event to remove.
- * @method purgeElement
- * @param {HTMLElement} el the element to purge
- * @param {boolean} recurse recursively purge this element's children
- * as well. Use with caution.
- * @param {string} sType optional type of listener to purge. If
- * left out, all listeners will be removed
- * @static
- */
- purgeElement: function(el, recurse, sType) {
- var oEl = (YAHOO.lang.isString(el)) ? this.getEl(el) : el;
- var elListeners = this.getListeners(oEl, sType), i, len;
- if (elListeners) {
- for (i=elListeners.length-1; i>-1; i--) {
- var l = elListeners[i];
- this.removeListener(oEl, l.type, l.fn);
- }
- }
-
- if (recurse && oEl && oEl.childNodes) {
- for (i=0,len=oEl.childNodes.length; i<len ; ++i) {
- this.purgeElement(oEl.childNodes[i], recurse, sType);
- }
- }
- },
-
- /**
- * Returns all listeners attached to the given element via addListener.
- * Optionally, you can specify a specific type of event to return.
- * @method getListeners
- * @param el {HTMLElement|string} the element or element id to inspect
- * @param sType {string} optional type of listener to return. If
- * left out, all listeners will be returned
- * @return {Object} the listener. Contains the following fields:
- * type: (string) the type of event
- * fn: (function) the callback supplied to addListener
- * obj: (object) the custom object supplied to addListener
- * adjust: (boolean|object) whether or not to adjust the default context
- * scope: (boolean) the derived context based on the adjust parameter
- * index: (int) its position in the Event util listener cache
- * @static
- */
- getListeners: function(el, sType) {
- var results=[], searchLists;
- if (!sType) {
- searchLists = [listeners, unloadListeners];
- } else if (sType === "unload") {
- searchLists = [unloadListeners];
- } else {
- searchLists = [listeners];
- }
-
- var oEl = (YAHOO.lang.isString(el)) ? this.getEl(el) : el;
-
- for (var j=0;j<searchLists.length; j=j+1) {
- var searchList = searchLists[j];
- if (searchList) {
- for (var i=0,len=searchList.length; i<len ; ++i) {
- var l = searchList[i];
- if ( l && l[this.EL] === oEl &&
- (!sType || sType === l[this.TYPE]) ) {
- results.push({
- type: l[this.TYPE],
- fn: l[this.FN],
- obj: l[this.OBJ],
- adjust: l[this.OVERRIDE],
- scope: l[this.ADJ_SCOPE],
- index: i
- });
- }
- }
- }
- }
-
- return (results.length) ? results : null;
- },
-
- /**
- * Removes all listeners registered by pe.event. Called
- * automatically during the unload event.
- * @method _unload
- * @static
- * @private
- */
- _unload: function(e) {
-
- var EU = YAHOO.util.Event, i, j, l, len, index,
- ul = unloadListeners.slice(), context;
-
- // execute and clear stored unload listeners
- for (i=0, len=unloadListeners.length; i<len; ++i) {
- l = ul[i];
- if (l) {
- context = window;
- if (l[EU.ADJ_SCOPE]) {
- if (l[EU.ADJ_SCOPE] === true) {
- context = l[EU.UNLOAD_OBJ];
- } else {
- context = l[EU.ADJ_SCOPE];
- }
- }
- l[EU.FN].call(context, EU.getEvent(e, l[EU.EL]), l[EU.UNLOAD_OBJ] );
- ul[i] = null;
- }
- }
-
- l = null;
- context = null;
- unloadListeners = null;
-
- // Remove listeners to handle IE memory leaks
- //if (YAHOO.env.ua.ie && listeners && listeners.length > 0) {
-
- // 2.5.0 listeners are removed for all browsers again. FireFox preserves
- // at least some listeners between page refreshes, potentially causing
- // errors during page load (mouseover listeners firing before they
- // should if the user moves the mouse at the correct moment).
- if (listeners) {
- for (j=listeners.length-1; j>-1; j--) {
- l = listeners[j];
- if (l) {
- EU.removeListener(l[EU.EL], l[EU.TYPE], l[EU.FN], j);
- }
- }
- l=null;
- }
-
- legacyEvents = null;
-
- EU._simpleRemove(window, "unload", EU._unload);
-
- },
-
- /**
- * Returns scrollLeft
- * @method _getScrollLeft
- * @static
- * @private
- */
- _getScrollLeft: function() {
- return this._getScroll()[1];
- },
-
- /**
- * Returns scrollTop
- * @method _getScrollTop
- * @static
- * @private
- */
- _getScrollTop: function() {
- return this._getScroll()[0];
- },
-
- /**
- * Returns the scrollTop and scrollLeft. Used to calculate the
- * pageX and pageY in Internet Explorer
- * @method _getScroll
- * @static
- * @private
- */
- _getScroll: function() {
- var dd = document.documentElement, db = document.body;
- if (dd && (dd.scrollTop || dd.scrollLeft)) {
- return [dd.scrollTop, dd.scrollLeft];
- } else if (db) {
- return [db.scrollTop, db.scrollLeft];
- } else {
- return [0, 0];
- }
- },
-
- /**
- * Used by old versions of CustomEvent, restored for backwards
- * compatibility
- * @method regCE
- * @private
- * @static
- * @deprecated still here for backwards compatibility
- */
- regCE: function() {
- // does nothing
- },
-
- /**
- * Adds a DOM event directly without the caching, cleanup, context adj, etc
- *
- * @method _simpleAdd
- * @param {HTMLElement} el the element to bind the handler to
- * @param {string} sType the type of event handler
- * @param {function} fn the callback to invoke
- * @param {boolen} capture capture or bubble phase
- * @static
- * @private
- */
- _simpleAdd: function () {
- if (window.addEventListener) {
- return function(el, sType, fn, capture) {
- el.addEventListener(sType, fn, (capture));
- };
- } else if (window.attachEvent) {
- return function(el, sType, fn, capture) {
- el.attachEvent("on" + sType, fn);
- };
- } else {
- return function(){};
- }
- }(),
-
- /**
- * Basic remove listener
- *
- * @method _simpleRemove
- * @param {HTMLElement} el the element to bind the handler to
- * @param {string} sType the type of event handler
- * @param {function} fn the callback to invoke
- * @param {boolen} capture capture or bubble phase
- * @static
- * @private
- */
- _simpleRemove: function() {
- if (window.removeEventListener) {
- return function (el, sType, fn, capture) {
- el.removeEventListener(sType, fn, (capture));
- };
- } else if (window.detachEvent) {
- return function (el, sType, fn) {
- el.detachEvent("on" + sType, fn);
- };
- } else {
- return function(){};
- }
- }()
- };
-
- }();
-
- (function() {
- var EU = YAHOO.util.Event;
-
- /**
- * YAHOO.util.Event.on is an alias for addListener
- * @method on
- * @see addListener
- * @static
- */
- EU.on = EU.addListener;
-
- /**
- * YAHOO.util.Event.onFocus is an alias for addFocusListener
- * @method on
- * @see addFocusListener
- * @static
- */
- EU.onFocus = EU.addFocusListener;
-
- /**
- * YAHOO.util.Event.onBlur is an alias for addBlurListener
- * @method onBlur
- * @see addBlurListener
- * @static
- */
- EU.onBlur = EU.addBlurListener;
-
-
-/*! DOMReady: based on work by: Dean Edwards/John Resig/Matthias Miller */
-
- // Internet Explorer: use the readyState of a defered script.
- // This isolates what appears to be a safe moment to manipulate
- // the DOM prior to when the document's readyState suggests
- // it is safe to do so.
- if (EU.isIE) {
-
- // Process onAvailable/onContentReady items when the
- // DOM is ready.
- YAHOO.util.Event.onDOMReady(
- YAHOO.util.Event._tryPreloadAttach,
- YAHOO.util.Event, true);
-
- var n = document.createElement('p');
-
- EU._dri = setInterval(function() {
- try {
- // throws an error if doc is not ready
- n.doScroll('left');
- clearInterval(EU._dri);
- EU._dri = null;
- EU._ready();
- n = null;
- } catch (ex) {
- }
- }, EU.POLL_INTERVAL);
-
-
- // The document's readyState in Safari currently will
- // change to loaded/complete before images are loaded.
- } else if (EU.webkit && EU.webkit < 525) {
-
- EU._dri = setInterval(function() {
- var rs=document.readyState;
- if ("loaded" == rs || "complete" == rs) {
- clearInterval(EU._dri);
- EU._dri = null;
- EU._ready();
- }
- }, EU.POLL_INTERVAL);
-
- // FireFox and Opera: These browsers provide a event for this
- // moment. The latest WebKit releases now support this event.
- } else {
-
- EU._simpleAdd(document, "DOMContentLoaded", EU._ready);
-
- }
- /////////////////////////////////////////////////////////////
-
-
- EU._simpleAdd(window, "load", EU._load);
- EU._simpleAdd(window, "unload", EU._unload);
- EU._tryPreloadAttach();
- })();
-
-}
-/**
- * EventProvider is designed to be used with YAHOO.augment to wrap
- * CustomEvents in an interface that allows events to be subscribed to
- * and fired by name. This makes it possible for implementing code to
- * subscribe to an event that either has not been created yet, or will
- * not be created at all.
- *
- * @Class EventProvider
- */
-YAHOO.util.EventProvider = function() { };
-
-YAHOO.util.EventProvider.prototype = {
-
- /**
- * Private storage of custom events
- * @property __yui_events
- * @type Object[]
- * @private
- */
- __yui_events: null,
-
- /**
- * Private storage of custom event subscribers
- * @property __yui_subscribers
- * @type Object[]
- * @private
- */
- __yui_subscribers: null,
-
- /**
- * Subscribe to a CustomEvent by event type
- *
- * @method subscribe
- * @param p_type {string} the type, or name of the event
- * @param p_fn {function} the function to exectute when the event fires
- * @param p_obj {Object} An object to be passed along when the event
- * fires
- * @param overrideContext {boolean} If true, the obj passed in becomes the
- * execution scope of the listener
- */
- subscribe: function(p_type, p_fn, p_obj, overrideContext) {
-
- this.__yui_events = this.__yui_events || {};
- var ce = this.__yui_events[p_type];
-
- if (ce) {
- ce.subscribe(p_fn, p_obj, overrideContext);
- } else {
- this.__yui_subscribers = this.__yui_subscribers || {};
- var subs = this.__yui_subscribers;
- if (!subs[p_type]) {
- subs[p_type] = [];
- }
- subs[p_type].push(
- { fn: p_fn, obj: p_obj, overrideContext: overrideContext } );
- }
- },
-
- /**
- * Unsubscribes one or more listeners the from the specified event
- * @method unsubscribe
- * @param p_type {string} The type, or name of the event. If the type
- * is not specified, it will attempt to remove
- * the listener from all hosted events.
- * @param p_fn {Function} The subscribed function to unsubscribe, if not
- * supplied, all subscribers will be removed.
- * @param p_obj {Object} The custom object passed to subscribe. This is
- * optional, but if supplied will be used to
- * disambiguate multiple listeners that are the same
- * (e.g., you subscribe many object using a function
- * that lives on the prototype)
- * @return {boolean} true if the subscriber was found and detached.
- */
- unsubscribe: function(p_type, p_fn, p_obj) {
- this.__yui_events = this.__yui_events || {};
- var evts = this.__yui_events;
- if (p_type) {
- var ce = evts[p_type];
- if (ce) {
- return ce.unsubscribe(p_fn, p_obj);
- }
- } else {
- var ret = true;
- for (var i in evts) {
- if (YAHOO.lang.hasOwnProperty(evts, i)) {
- ret = ret && evts[i].unsubscribe(p_fn, p_obj);
- }
- }
- return ret;
- }
-
- return false;
- },
-
- /**
- * Removes all listeners from the specified event. If the event type
- * is not specified, all listeners from all hosted custom events will
- * be removed.
- * @method unsubscribeAll
- * @param p_type {string} The type, or name of the event
- */
- unsubscribeAll: function(p_type) {
- return this.unsubscribe(p_type);
- },
-
- /**
- * Creates a new custom event of the specified type. If a custom event
- * by that name already exists, it will not be re-created. In either
- * case the custom event is returned.
- *
- * @method createEvent
- *
- * @param p_type {string} the type, or name of the event
- * @param p_config {object} optional config params. Valid properties are:
- *
- * <ul>
- * <li>
- * scope: defines the default execution scope. If not defined
- * the default scope will be this instance.
- * </li>
- * <li>
- * silent: if true, the custom event will not generate log messages.
- * This is false by default.
- * </li>
- * <li>
- * onSubscribeCallback: specifies a callback to execute when the
- * event has a new subscriber. This will fire immediately for
- * each queued subscriber if any exist prior to the creation of
- * the event.
- * </li>
- * </ul>
- *
- * @return {CustomEvent} the custom event
- *
- */
- createEvent: function(p_type, p_config) {
-
- this.__yui_events = this.__yui_events || {};
- var opts = p_config || {};
- var events = this.__yui_events;
-
- if (events[p_type]) {
- } else {
-
- var scope = opts.scope || this;
- var silent = (opts.silent);
-
- var ce = new YAHOO.util.CustomEvent(p_type, scope, silent,
- YAHOO.util.CustomEvent.FLAT);
- events[p_type] = ce;
-
- if (opts.onSubscribeCallback) {
- ce.subscribeEvent.subscribe(opts.onSubscribeCallback);
- }
-
- this.__yui_subscribers = this.__yui_subscribers || {};
- var qs = this.__yui_subscribers[p_type];
-
- if (qs) {
- for (var i=0; i<qs.length; ++i) {
- ce.subscribe(qs[i].fn, qs[i].obj, qs[i].overrideContext);
- }
- }
- }
-
- return events[p_type];
- },
-
-
- /**
- * Fire a custom event by name. The callback functions will be executed
- * from the scope specified when the event was created, and with the
- * following parameters:
- * <ul>
- * <li>The first argument fire() was executed with</li>
- * <li>The custom object (if any) that was passed into the subscribe()
- * method</li>
- * </ul>
- * @method fireEvent
- * @param p_type {string} the type, or name of the event
- * @param arguments {Object*} an arbitrary set of parameters to pass to
- * the handler.
- * @return {boolean} the return value from CustomEvent.fire
- *
- */
- fireEvent: function(p_type, arg1, arg2, etc) {
-
- this.__yui_events = this.__yui_events || {};
- var ce = this.__yui_events[p_type];
-
- if (!ce) {
- return null;
- }
-
- var args = [];
- for (var i=1; i<arguments.length; ++i) {
- args.push(arguments[i]);
- }
- return ce.fire.apply(ce, args);
- },
-
- /**
- * Returns true if the custom event of the provided type has been created
- * with createEvent.
- * @method hasEvent
- * @param type {string} the type, or name of the event
- */
- hasEvent: function(type) {
- if (this.__yui_events) {
- if (this.__yui_events[type]) {
- return true;
- }
- }
- return false;
- }
-
-};
-
-(function() {
-
- var Event = YAHOO.util.Event, Lang = YAHOO.lang;
-
-/**
-* KeyListener is a utility that provides an easy interface for listening for
-* keydown/keyup events fired against DOM elements.
-* @namespace YAHOO.util
-* @class KeyListener
-* @constructor
-* @param {HTMLElement} attachTo The element or element ID to which the key
-* event should be attached
-* @param {String} attachTo The element or element ID to which the key
-* event should be attached
-* @param {Object} keyData The object literal representing the key(s)
-* to detect. Possible attributes are
-* shift(boolean), alt(boolean), ctrl(boolean)
-* and keys(either an int or an array of ints
-* representing keycodes).
-* @param {Function} handler The CustomEvent handler to fire when the
-* key event is detected
-* @param {Object} handler An object literal representing the handler.
-* @param {String} event Optional. The event (keydown or keyup) to
-* listen for. Defaults automatically to keydown.
-*
-* @knownissue the "keypress" event is completely broken in Safari 2.x and below.
-* the workaround is use "keydown" for key listening. However, if
-* it is desired to prevent the default behavior of the keystroke,
-* that can only be done on the keypress event. This makes key
-* handling quite ugly.
-* @knownissue keydown is also broken in Safari 2.x and below for the ESC key.
-* There currently is no workaround other than choosing another
-* key to listen for.
-*/
-YAHOO.util.KeyListener = function(attachTo, keyData, handler, event) {
- if (!attachTo) {
- } else if (!keyData) {
- } else if (!handler) {
- }
-
- if (!event) {
- event = YAHOO.util.KeyListener.KEYDOWN;
- }
-
- /**
- * The CustomEvent fired internally when a key is pressed
- * @event keyEvent
- * @private
- * @param {Object} keyData The object literal representing the key(s) to
- * detect. Possible attributes are shift(boolean),
- * alt(boolean), ctrl(boolean) and keys(either an
- * int or an array of ints representing keycodes).
- */
- var keyEvent = new YAHOO.util.CustomEvent("keyPressed");
-
- /**
- * The CustomEvent fired when the KeyListener is enabled via the enable()
- * function
- * @event enabledEvent
- * @param {Object} keyData The object literal representing the key(s) to
- * detect. Possible attributes are shift(boolean),
- * alt(boolean), ctrl(boolean) and keys(either an
- * int or an array of ints representing keycodes).
- */
- this.enabledEvent = new YAHOO.util.CustomEvent("enabled");
-
- /**
- * The CustomEvent fired when the KeyListener is disabled via the
- * disable() function
- * @event disabledEvent
- * @param {Object} keyData The object literal representing the key(s) to
- * detect. Possible attributes are shift(boolean),
- * alt(boolean), ctrl(boolean) and keys(either an
- * int or an array of ints representing keycodes).
- */
- this.disabledEvent = new YAHOO.util.CustomEvent("disabled");
-
- if (Lang.isString(attachTo)) {
- attachTo = document.getElementById(attachTo); // No Dom util
- }
-
- if (Lang.isFunction(handler)) {
- keyEvent.subscribe(handler);
- } else {
- keyEvent.subscribe(handler.fn, handler.scope, handler.correctScope);
- }
-
- /**
- * Handles the key event when a key is pressed.
- * @method handleKeyPress
- * @param {DOMEvent} e The keypress DOM event
- * @param {Object} obj The DOM event scope object
- * @private
- */
- function handleKeyPress(e, obj) {
- if (! keyData.shift) {
- keyData.shift = false;
- }
- if (! keyData.alt) {
- keyData.alt = false;
- }
- if (! keyData.ctrl) {
- keyData.ctrl = false;
- }
-
- // check held down modifying keys first
- if (e.shiftKey == keyData.shift &&
- e.altKey == keyData.alt &&
- e.ctrlKey == keyData.ctrl) { // if we pass this, all modifiers match
-
- var dataItem, keys = keyData.keys, key;
-
- if (YAHOO.lang.isArray(keys)) {
- for (var i=0;i<keys.length;i++) {
- dataItem = keys[i];
- key = Event.getCharCode(e);
-
- if (dataItem == key) {
- keyEvent.fire(key, e);
- break;
- }
- }
- } else {
- key = Event.getCharCode(e);
- if (keys == key ) {
- keyEvent.fire(key, e);
- }
- }
- }
- }
-
- /**
- * Enables the KeyListener by attaching the DOM event listeners to the
- * target DOM element
- * @method enable
- */
- this.enable = function() {
- if (! this.enabled) {
- Event.on(attachTo, event, handleKeyPress);
- this.enabledEvent.fire(keyData);
- }
- /**
- * Boolean indicating the enabled/disabled state of the Tooltip
- * @property enabled
- * @type Boolean
- */
- this.enabled = true;
- };
-
- /**
- * Disables the KeyListener by removing the DOM event listeners from the
- * target DOM element
- * @method disable
- */
- this.disable = function() {
- if (this.enabled) {
- Event.removeListener(attachTo, event, handleKeyPress);
- this.disabledEvent.fire(keyData);
- }
- this.enabled = false;
- };
-
- /**
- * Returns a String representation of the object.
- * @method toString
- * @return {String} The string representation of the KeyListener
- */
- this.toString = function() {
- return "KeyListener [" + keyData.keys + "] " + attachTo.tagName +
- (attachTo.id ? "[" + attachTo.id + "]" : "");
- };
-
-};
-
-var KeyListener = YAHOO.util.KeyListener;
-
-/**
- * Constant representing the DOM "keydown" event.
- * @property YAHOO.util.KeyListener.KEYDOWN
- * @static
- * @final
- * @type String
- */
-KeyListener.KEYDOWN = "keydown";
-
-/**
- * Constant representing the DOM "keyup" event.
- * @property YAHOO.util.KeyListener.KEYUP
- * @static
- * @final
- * @type String
- */
-KeyListener.KEYUP = "keyup";
-
-/**
- * keycode constants for a subset of the special keys
- * @property KEY
- * @static
- * @final
- */
-KeyListener.KEY = {
- ALT : 18,
- BACK_SPACE : 8,
- CAPS_LOCK : 20,
- CONTROL : 17,
- DELETE : 46,
- DOWN : 40,
- END : 35,
- ENTER : 13,
- ESCAPE : 27,
- HOME : 36,
- LEFT : 37,
- META : 224,
- NUM_LOCK : 144,
- PAGE_DOWN : 34,
- PAGE_UP : 33,
- PAUSE : 19,
- PRINTSCREEN : 44,
- RIGHT : 39,
- SCROLL_LOCK : 145,
- SHIFT : 16,
- SPACE : 32,
- TAB : 9,
- UP : 38
-};
-
-})();
-YAHOO.register("event", YAHOO.util.Event, {version: "2.7.0", build: "1799"});
ToastFreeware / philipp / winterrodeln / wradmin.git / blobdiff