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123 lines
5.0 KiB
Plaintext
123 lines
5.0 KiB
Plaintext
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YUI Library - Event - Release Notes
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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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