253 lines
10 KiB
Plaintext
253 lines
10 KiB
Plaintext
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YUI Library - Event - Release Notes
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2.6.0
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* Legacy event check for Webkit increased to capture Safari 2.0.3.
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* Added add/removeFocusListener, add/removeBlurListener
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2.5.2
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* Custom Event fire() now throws caught exceptions if YAHOO.util.throwErrors =
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true. In either case, a message is written to the logger console.
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2.5.1
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* Arrays are once again resized when a listener is removed.
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* onAvailable/onContentReady stop polling when there is nothing to look for.
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2.5.0
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* Added try/catch to getTarget to suppress errors when targeting
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ActiveX controls.
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* Increased the default poll interval to 20ms, and decreased poll
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retries to 2000 to reduce IE CPU usage.
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* onDOMReady now uses the native DOMContentLoaded event for the
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latest releases of WebKit since it support for it was added.
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* Restored the code that removes all listeners during the unload event to
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address issues caused by the way FireFox persists listeners through
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page refreshes.
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2.4.1
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* Reverted clearAttributes() change to fix IE memory leak on iframes/windows
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2.4.0
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* getListeners/purgeElement accepts either an element reference or an element id
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* onAvailable/onContentReady accepts a single id or an array of ids
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* No longer removing listeners during the unload event for non-IE browsers
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* IE unload strategy for cross page memory leaks changed from removing each listener
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to calling clearAttributes()
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* the DOMReady property is now public
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* Changed IE onDOMReady approach from the defered script node hack to the doScroll('left') hack
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* getCharChode now Remaps SHIFT-TAB key code (25) to TAB (9) in Safari
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* getCharCode provides the proper key codes for page up and page down in Safari
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* Restored object check to _isValidCollection.
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* In KeyListener, added keycode constants for some of the special keys.
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* Rolled back the change added for hacking around IE errors from bubbled
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events that originally targeted an ActiveX control.
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2.3.1
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* CustomEvent fire() now catches exceptions thrown by the subscribers so
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that the rest of the subscribers execute. The exception is logged and
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stored in the "lastError" property.
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* Performance tweak: _isValidCollection fails strings first.
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* onAvailable/onContentReady will work if an element ref rather than an
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id is provided.
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* getListeners: fixed the values for the obj and adjust properties.
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Added scope property.
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* Added IE hack for when the event target is something that can't be
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inspected (like a VML canvas). In this case the target is set to
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the element the listener is bound to.
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2.3.0
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* addListener now produces a logger warning if the supplied callback is
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undefined.
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* Reduced the likelihood that window onload listeners fire before
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onAvailable listeners when the two happen near the same moment.
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* Fixed an IE error that could occur when the library was injected into
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the page after window onload.
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* The onDOMReady listener will be executed immediately if the
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DOMReady event had already fired prior to the call.
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* Unsubscribing custom events within a handler for the event now works
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properly.
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* EventProvider unsubscribeAll will unsubscribe all listeners from
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all hosted custom events if the type is not specified.
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* Event.getKeyCode now checks keyCode before charCode for Safari normalization.
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Safari arrow key codes are normalized as well.
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* Broke up the </script> in Event to allow it to be included inline
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2.2.2
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* No change
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2.2.1
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* onAvailable listeners are processed before onContentReady listeners so
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they fire in the logical order when an element is found to be available
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and ready in the same pass.
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* Added onDOMReady for receiving notification when the DOM is first usable.
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* In Internet Explorer, onAvailable/onContentReady checks now start when
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DOMReady fires to reduce the possibility of receiving an "operation
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aborted" errors when inserting DOM nodes during in the onAvailable/
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onContentReady listener execution.
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* CustomEvent subscribers supplying undefined callbacks will be notified
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when subscribing rather than having an ambiguous error thrown when the
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event is fired.
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* Fixed missing html tags in the examples.
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* POLL_INTERVAL is 10 ms.
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* YAHOO.util.CustomEvent is now declared before YAHOO.util.Event.
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2.2.0
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* YAHOO.util.KeyListener was moved from the container package into event.
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* The Safari bug that made it so preventDefault would not work with click
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and double-click listeners on anchor tags was resolved in version 2.0.4.
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The workaround (using DOM0 events for these instead of the normal DOM2
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events) is now only used for releases prior to 2.0.4.
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* getListeners/purgeElement now work correctly with unload listeners
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* When legacyEvents are used (Safari<2.0.4 click events), if there was an
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existing DOM0 event that the utility replaced, it is executed along with
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the listeners that were added with the utility.
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* Restored Event.regCE for compatibility with a beta release of the library
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that in use in an external API.
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* unsubscribe in CustomEvent and EventProvider will remove all listeners
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if the listener is omitted.
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* Added unsubscribeAll to EventProvider
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* Added Event.lastError which stores the most recent error object if
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a browser-specific add/remove listener call throws an exception.
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0.12.2
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* Fixed a bug introduced in 0.12.1 release caused nested onAvailable
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calls to fail.
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0.12.1
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* If an error is thrown during the browser-specific add/remove lister call,
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addListener/removeListener will catch the error and return false.
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* onAvailable array items are nulled out instead of deleted when completed to
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get around an Opera issue introduced in a recent version of the browser.
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0.12.0
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* If the function argument is not provided to Event.removeListener, all
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all listeners for the specified event type on the element will be removed.
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* CustomEvent now has an optional parameter that defines the signature of
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the listeners for this event. Two signatures are supported:
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YAHOO.util.CustomEvent.LIST:
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param1: event name
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param2: array of arguments provided to fire()
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param3: <optional> the custom object supplied to subscribe()
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YAHOO.util.CustomEvent.FLAT:
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param1: the first argument provided to fire()
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param2: <optional> the custom object supplied to subscribe()
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The new flat signature makes it possible to provide a better API
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when using custom events, and it makes it possible to transparently
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wrap DOM events.
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* The parameters for overriding scope in both Event.addListener, and
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CustomEvent.subscribe have been augmented. In addition to the
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previous behavior where a true value would make the previous parameter
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the execution scope, an object can be supplied instead. If an object
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is provided, that object becomes the scope obj. This makes it possible
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to pass a both a custom object and adjust the scope to a different object.
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* Added EventProvider, which is a wrapper for CustomEvent that makes it
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possible to subscribe to events by name, whether or not the event has
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been created. This class was designed to be used with YAHOO.augment.
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EventProvider custom events are created with the new FLAT listener
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signature.
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* CustomEvent subscribers can return false to stop the propagation of
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the event.
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* CustomEvents now have an onSubscribe custom event that can used to the
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case where a subscriber subscribes to an one-time event that has already
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happened. Also provides a way for the implementer to defer initialization
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logic until after the first subscription.
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* Event.getCharCode now always returns keyCode if charCode is not available.
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* Added Event.onContentReady, which is similar to onAvailable, but it also
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checks simblings to try to determine when the element's children are
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available.
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0.11.4
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* Fixed a memory leak in IE6 that occurred when the utility was hosted in
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an iframe.
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* Fixed an issue with Safari click listeners when listeners were removed.
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0.11.3
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* The listener cache is now pruned when events are removed. This fixes
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a performance issue when adding many listeners, removing them, and
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adding them again repeatedly.
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* Safari click listeners will work correctly if a bound element is removed
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from the DOM and a new element with the same ID is added.
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* Removed the code that automatically unsubscribed custom event listeners.
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0.11.0
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* Added Event.purgeElement which will remove all listeners added via
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addListener from the supplied element. If an optional "type" parameter
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is supplied, only events of that type will be removed. Optionally, the
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purge can be performed recursively on the element's children as well.
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* Added Event.getListeners which will return all listeners attached to
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a given element.. either all listeners or listeners of a specific type.
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* getTarget now automatically resolves text nodes. The optional parameter
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for this feature is now deprecated.
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* getRelatedTarget now resolves text nodes for the browsers that return the
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text node rather than its host HTML element.
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* CustomEvent now logs the custom event activity if the logger widget is available
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0.10.0
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* Added Safari dblclick to the list of legacy events.
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* When multiple identical event handlers are defined, multiple calls
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to removeListener can now remove all of them.
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* removeListener works properly for unload events
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* Legacy event bookkeeping is more efficient, improving the performance for
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adding Safari click events.
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* _unload() is more efficient, improving the page transition experience in
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Safari in particular.
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* addListener, removeListener now return false if the function argument is
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not valid.
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* Fixed an operator precedence issue in getCharCode.
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* Added Event.getXY, which returns [Event.getPageX(e), Event.getPageY(e)]
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* Added Event.onAvailable, which will execute the callback when the element
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with the supplied id is found. Currently searches periodically until the
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window load event or for up to 10 seconds after the onAvailable method
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was executed.
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* The lazy listener attachment process now will poll beyond the window load
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event in order to better handle the case when a listener is defined
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late in the page but before the element is in the dom.
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* Fixed browser detection for Opera installations reporting as IE.
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* It is now possible to remove and re-add legacy events (Safari click event).
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