[Webkit-unassigned] [Bug 208682] New: Drag from a -webkit-user-select:none element should not start selection

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=208682

            Bug ID: 208682
           Summary: Drag from a -webkit-user-select:none element should
                    not start selection
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: CSS
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: clopez at igalia.com

The spec <https://www.w3.org/TR/css-ui-4/#propdef-user-select> is clear in this respect:
none
    The UA must not allow selections to be started in this element. 


So, as a fix to this consider merging chromium patch: https://chromium.googlesource.com/chromium/src/+/f6dcdcf4917ba56f5576ef7d5d11d869630d2760

Test case from https://bugs.chromium.org/p/chromium/issues/detail?id=481985
> Open http://jsbin.com/zufeva/1/
> Start dragging on the first box (-webkit-user-select:none) and drag into the second (no -webkit-user-select).
> IE and Firefox appear to implement their user-select variants differently where it controls whether selection can be STARTED.  So there, if you start in the first box, you won't select text anywhere.

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