- From: Ian Hickson <ian@hixie.ch>
- Date: Thu, 8 May 2008 00:55:30 +0000 (UTC)
On Thu, 15 Mar 2007, Magnus Kristiansen wrote: > > Mouseover/out events will trigger when elements contained inside the > EventTarget are hovered, and then bubble up. This is contrary to the most > obvious interpretation, as you are still inside (over) the targeted element. > IE supports two events, mouseenter[1] and mouseleave[2], which solve this > problem by not bubbling. > > It is possible to work around the problem by using target/relatedTarget and > walking up the DOM tree. However, this requires extra code for every event > handler. Besides, these events were often not meant to be generated in the > first place, by the intent of the author. > > I have no statistics for how often mouseover/out are used with and without > intent of bubbling, but the anecdotal evidence from my own experience has > never found me wanting it. > > I suggest these two events be added to the web applications spec. > > [1] > http://msdn.microsoft.com/workshop/author/dhtml/reference/events/onmouseenter.asp > [2] > http://msdn.microsoft.com/workshop/author/dhtml/reference/events/onmouseleave.asp I recommend sending this feedback to the WebAPI working group, which is working on DOM events. (I shall forward the thread to the working group, but I do not know if the WebAPI working group has an effective issue tracking mechanism, so you may wish to follow this up to ensure that it gets handled.) -- Ian Hickson U+1047E )\._.,--....,'``. fL http://ln.hixie.ch/ U+263A /, _.. \ _\ ;`._ ,. Things that are impossible just take longer. `._.-(,_..'--(,_..'`-.;.'
Received on Wednesday, 7 May 2008 17:55:30 UTC