[Webkit-unassigned] [Bug 117223] [CSS Blending] Updating the -webkit-background-blend-mode property dynamically does not trigger a redraw of the element

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Thu Jun 13 10:16:29 PDT 2013


--- Comment #6 from Mihai Tica <mitica at adobe.com>  2013-06-13 10:15:06 PST ---
(In reply to comment #4)
> (From update of attachment 204554 [details])
> View in context: https://bugs.webkit.org/attachment.cgi?id=204554&action=review
> > LayoutTests/css3/compositing/background-blend-mode-image-color-dynamic.html:29
> > +        for (var i = 0; i < blendModes.length; ++i) {
> > +            var elem = document.createElement('div');
> > +            document.body.appendChild(elem);
> > +        }
> Are you sure that this test really does the job of testing repaint? I would use the repaint logic from DRT and have a pixel result of the changed area. Then you don't need to test all blend modes, but just if the drawn content changed at all. We already have test to verify that the property value changed. You should find real repaint tests all over the place.

Ok, it looks like my test simulated what was in fast/repaint, but we should probably use the already existing mechanism. Updating test.

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