Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 7bbc1c0142c8f349a88396ca519e61599eeec2ec
https://github.com/WebKit/WebKit/commit/7bbc1c0142c8f349a88396ca519e61599eeec2ec
Author: Cathie Chen <[email protected]>
Date: 2025-05-01 (Thu, 01 May 2025)
Changed paths:
A LayoutTests/compositing/tiling/huge-layer-canvas-resize-expected.txt
A LayoutTests/compositing/tiling/huge-layer-canvas-resize.html
A LayoutTests/compositing/tiling/huge-layer-img-resize-expected.txt
A LayoutTests/compositing/tiling/huge-layer-img-resize.html
M LayoutTests/platform/glib/TestExpectations
A
LayoutTests/platform/ios/compositing/tiling/huge-layer-canvas-resize-expected.txt
A
LayoutTests/platform/ios/compositing/tiling/huge-layer-img-resize-expected.txt
M LayoutTests/platform/win/TestExpectations
M Source/WebCore/rendering/RenderReplaced.cpp
Log Message:
-----------
Canvas with relative width does not repaint correctly on parent resize
https://bugs.webkit.org/show_bug.cgi?id=267986
Reviewed by Alan Baradlay.
Elements with relative width do not trigger a full repaint when their size
changes because they are not selfNeedsLayout.
For elements like <canvas> and <img>, a size change implies a scale change, so
they should trigger a full repaint.
This issue is only revealed if the replaced element is on a tiled layer and its
ancestor with selfNeedsLayout on other layer.
If they are on the same layer, the ancestor would trigger full repaint for
itself, the repaint rect will cover the replace element.
If the replaced element is on an untiled layer, this layer triggers a full
repaint on layer size change.
This patch triggers full repaint for elements like canvas and image in after
layout.
* LayoutTests/compositing/tiling/huge-layer-canvas-resize-expected.txt: Added.
* LayoutTests/compositing/tiling/huge-layer-canvas-resize.html: Added.
* LayoutTests/compositing/tiling/huge-layer-img-resize-expected.txt: Added.
* LayoutTests/compositing/tiling/huge-layer-img-resize.html: Added.
* LayoutTests/platform/glib/TestExpectations:
*
LayoutTests/platform/ios/compositing/tiling/huge-layer-canvas-resize-expected.txt:
Added.
*
LayoutTests/platform/ios/compositing/tiling/huge-layer-img-resize-expected.txt:
Added.
* LayoutTests/platform/win/TestExpectations:
* Source/WebCore/rendering/RenderReplaced.cpp:
(WebCore::issueFullRepaintOnSizeChangeIfNeeded):
(WebCore::RenderReplaced::layout):
Canonical link: https://commits.webkit.org/294401@main
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