[webkit-dev] Add SelectionChange event for content editable regions

Ryosuke Niwa rniwa at webkit.org
Thu Oct 21 18:45:41 PDT 2010

A patch has been submitted to https://bugs.webkit.org/show_bug.cgi?id=45712.

- Ryosuke

On Mon, Oct 11, 2010 at 6:21 PM, Ryosuke Niwa <rniwa at webkit.org> wrote:

> On Mon, Oct 11, 2010 at 11:34 AM, Darin Adler <darin at apple.com> wrote:
>> It seems that if our aim is to be compatible with the IE event, we should
>> make our implementation as close to the IE one as possible. I’m not sure
>> that firing the same event, but with a different target, will be good for
>> compatibility. Is there some chance this could lead to a webpage that works
>> in IE but fails in our engine, that would have worked fine if we used a
>> different event name?
> The goal is to provide developers a way to detect selection change.  The
> idea was that if we had multiple editable regions, developers often want to
> know which of those editable regions have the selection.  Of course, they
> could walk the DOM upwards from the current selection to find the editable
> root but I can't think of cases where developers want to receive the
> document node as the target (maybe useful if we had multiple iframes with
> design mode on?) because they almost always have the access to the document
> node.
> I think that firing the same select event for editable areas in the
>> document as for input and textarea elements might be a mistake, because the
>> functions for querying and working with the selection are not uniform for
>> those elements. Inside the engine we treat these much the same, but in the
>> DOM API they are quite different.
> Agreed.
> Alex pointed out that it might be better to have an extra event property
> (e.g. webkitEditableRoot) that points to the editable root or other element
> and make target always point to the document node for compatibility.  Do you
> like this design better?
> - Ryosuke
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