[Webkit-unassigned] [Bug 60269] [Windows, WinCairo] Implement ability to add C++ event listeners to html dom elements and dom window

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=60269





--- Comment #4 from Geoffrey Garen <ggaren at apple.com>  2011-05-05 12:48:21 PST ---
(In reply to comment #3)
> Obviously, the most difficult part here is getting object lifetime issues right. 

This biggest potential lifetime problem is that the listener may create a reference cycle, if the listener object directly or indirectly references the event target.

This problem is unique to reference counted environments -- GC can break cycles; reference counting cannot.

> I think that DOM JS garbage collection relies on listeners being JavaScript objects.

This shouldn't be a problem. We already support a bunch of non-JS listener types. Search for "public EventListener" to see them all.

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