[webkit-changes] [WebKit/WebKit] eb3399: [UnifiedPDF] Fix hit-testing when zoomed

[Simon Fraser]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: eb3399bb2c9b06b232eb049c1f2a7ff9cb86f6b7
      https://github.com/WebKit/WebKit/commit/eb3399bb2c9b06b232eb049c1f2a7ff9cb86f6b7
  Author: Simon Fraser <simon.fraser at apple.com>
  Date:   2024-01-30 (Tue, 30 Jan 2024)

  Changed paths:
    M Source/WebKit/WebProcess/Plugins/PDF/UnifiedPDF/UnifiedPDFPlugin.h
    M Source/WebKit/WebProcess/Plugins/PDF/UnifiedPDF/UnifiedPDFPlugin.mm

  Log Message:
  -----------
  [UnifiedPDF] Fix hit-testing when zoomed
https://bugs.webkit.org/show_bug.cgi?id=268357
rdar://121903219

Reviewed by Tim Horton.

Factor the side padding computation into its own function.

Fix `UnifiedPDFPlugin::convertFromPluginToDocument()` to take side padding and scale factor
into account. Add some logging.

* Source/WebKit/WebProcess/Plugins/PDF/UnifiedPDF/UnifiedPDFPlugin.h:
* Source/WebKit/WebProcess/Plugins/PDF/UnifiedPDF/UnifiedPDFPlugin.mm:
(WebKit::UnifiedPDFPlugin::setPageScaleFactor):
(WebKit::UnifiedPDFPlugin::sidePaddingWidth const):
(WebKit::UnifiedPDFPlugin::convertFromPluginToDocument const):
(WebKit::operator<<):
(WebKit::UnifiedPDFPlugin::pdfElementTypesForPluginPoint const):

Canonical link: https://commits.webkit.org/273758@main