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[Bug 27837] New: Specify elementsFromRect

From: <bugzilla@jessica.w3.org>
Date: Thu, 15 Jan 2015 08:44:40 +0000
To: public-css-bugzilla@w3.org
Message-ID: <bug-27837-5148@http.www.w3.org/Bugs/Public/>
https://www.w3.org/Bugs/Public/show_bug.cgi?id=27837

            Bug ID: 27837
           Summary: Specify elementsFromRect
           Product: CSS
           Version: unspecified
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: CSSOM View
          Assignee: simonp@opera.com
          Reporter: simonp@opera.com
        QA Contact: public-css-bugzilla@w3.org

http://dev.w3.org/csswg/cssom-view/#dom-document-elementfrompoint

Also add elementsFromRect.

See
https://groups.google.com/a/chromium.org/d/msg/blink-dev/dTYbg4_S2b8/l83KfXvn9x8J

MS impl
http://msdn.microsoft.com/en-us/library/ie/hh673523(v=vs.85).aspx#The_msElementsFromRect_method

Use cases:

* fuzzy hit testing algorithms (like our touch adjustment) to be implemented in
JS
* to implement touch-drag selections; for drag-and-drop selection operations as
seen in drawing tools and UI builders

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