[webcomponents] [Shadow]: elementFromPoint should return the host when you hit a Text node (bugzilla: 24638) (#67)

Title: [Shadow]: elementFromPoint should return the host when you hit a Text node (bugzilla: 24638)

Migrated from: https://www.w3.org/Bugs/Public/show_bug.cgi?id=24638

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comment: 0
comment_url: https://www.w3.org/Bugs/Public/show_bug.cgi?id=24638#c0
*Elliott Sprehn* wrote on 2014-02-12 23:33:23 +0000.

Seeing as we don't want to throw an exception when you put a Text node as a child of a ShadowRoot, we should at the very least return the host element so that hit testing in a ShadowRoot that has direct text children does something sensible.

We probably need to make it return the host if you hit a border/background color too?

(this also makes sense since you can querySelector(":host"), so the host really is in the same scope as the ShadowRoot.

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comment: 1
comment_url: https://www.w3.org/Bugs/Public/show_bug.cgi?id=24638#c1
*Daniel Freedman* wrote on 2014-02-12 23:57:33 +0000.

This is conceptually similar to the fact that document.elementFromPoint will return the documentElement if the x,y target is within the document's bounds.

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comment: 2
comment_url: https://www.w3.org/Bugs/Public/show_bug.cgi?id=24638#c2
*Anne* wrote on 2014-02-13 10:05:18 +0000.

Instead of defining it this way, someone should define hit testing on layout boxes.

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comment: 3
comment_url: https://www.w3.org/Bugs/Public/show_bug.cgi?id=24638#c3
*Anne* wrote on 2014-02-13 10:05:59 +0000.

I'm not sure we want radically different behavior for elementFromPoint() and mouse events and :hover and such for instance.

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Reply to this email directly or view it on GitHub:
https://github.com/w3c/webcomponents/issues/67