Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 6d3572a224f0e70a963e9d00293e2c9562372ff8
https://github.com/WebKit/WebKit/commit/6d3572a224f0e70a963e9d00293e2c9562372ff8
Author: Richard Robinson <richard_robins...@apple.com>
Date: 2023-03-23 (Thu, 23 Mar 2023)
Changed paths:
M Source/WebKit/WebProcess/Plugins/PDF/PDFPlugin.mm
Log Message:
-----------
UI-side Compositing: PDF scrollbars are not draggable and don't grow when
hovered
https://bugs.webkit.org/show_bug.cgi?id=254363
rdar://105908418
Reviewed by Tim Horton.
For some reason, when UI-side compositing is enabled, the scrollbar's layer's
backing store
is larger than the layer itself when viewing a zoomed-in PDF. This causes the
scrollbar's
appearance's y-value to be offset by some amount.
This PR works around this by clearing the contents of the layer so that
CoreAnimation creates
a new backing store whenever the frame's change, which forces the new backing
store to have the
correct size.
* Source/WebKit/WebProcess/Plugins/PDF/PDFPlugin.mm:
(WebKit::PDFPlugin::updateScrollbars):
Canonical link: https://commits.webkit.org/262043@main
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