[Webkit-unassigned] [Bug 19954] New: Element with -webkit-mask: -webkit-canvas() is not redrawn when the canvas updates

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Tue Jul 8 16:33:01 PDT 2008


           Summary: Element with -webkit-mask: -webkit-canvas() is not
                    redrawn when the canvas updates
           Product: WebKit
           Version: 526+ (Nightly build)
          Platform: Macintosh
        OS/Version: Mac OS X 10.5
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: simon.fraser at apple.com

The attached testcase shows a problem where, when the mask, which is a canvas,
changes, the element is not redrawn.

The testcase has an image with style:
  -webkit-mask: -webkit-canvas(canvas1);
and an onmousemove() handler that redraws the canvas using the mouse coordinate
to determine the size of the gradient.

What I see:
When the page loads, the image is drawn with the gradient mask, but never
changes thereafter.

What I expect:
The image + mask is redrawn whenever the canvas is udpated.

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