Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 4fd2440d7ed92da3cc44cfcb64bc01137a492ba3
https://github.com/WebKit/WebKit/commit/4fd2440d7ed92da3cc44cfcb64bc01137a492ba3
Author: Simon Fraser <[email protected]>
Date: 2024-01-29 (Mon, 29 Jan 2024)
Changed paths:
M Source/WebKit/WebProcess/Plugins/PDF/UnifiedPDF/UnifiedPDFPlugin.mm
Log Message:
-----------
[UnifiedPDF] When zooming out below 1, the content should be centered
https://bugs.webkit.org/show_bug.cgi?id=268355
rdar://121900997
Reviewed by Tim Horton.
In `UnifiedPDFPlugin::setPageScaleFactor()`, when the scale is less than 1,
compute the extra
space, and add half on the left size via a post-scale translate on the contents
layer. We also
need to clamp scroll positions from prevent them from going negative.
In `UnifiedPDFPlugin::updateLayerHierarchy()`, the contents layer size is
pre-scaling, so
we should use `documentSize()`. This fixes truncated tiles when zoomed out.
* Source/WebKit/WebProcess/Plugins/PDF/UnifiedPDF/UnifiedPDFPlugin.mm:
(WebKit::UnifiedPDFPlugin::updateLayerHierarchy):
(WebKit::UnifiedPDFPlugin::setPageScaleFactor):
(WebKit::UnifiedPDFPlugin::documentSize const):
(WebKit::UnifiedPDFPlugin::contentsSize const):
Canonical link: https://commits.webkit.org/273729@main
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