[webkit-changes] [WebKit/WebKit] 22f373: UnifiedPDF: PDF in embed/object/iframe repaint con...

[Tim Horton]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 22f3736b4925f8e6095b5f64931c0941f9cfbd8e
      https://github.com/WebKit/WebKit/commit/22f3736b4925f8e6095b5f64931c0941f9cfbd8e
  Author: Tim Horton <timothy_horton at apple.com>
  Date:   2024-02-26 (Mon, 26 Feb 2024)

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

  Log Message:
  -----------
  UnifiedPDF: PDF in embed/object/iframe repaint constantly when the main frame scrolls
https://bugs.webkit.org/show_bug.cgi?id=270123

Reviewed by Simon Fraser.

* Source/WebKit/WebProcess/Plugins/PDF/UnifiedPDF/UnifiedPDFPlugin.mm:
(WebKit::UnifiedPDFPlugin::geometryDidChange):
Avoid calling updateLayout() (which is a full repaint and incredibly expensive)
every time the plugin-to-root-view transform changes; we only need to rebuild
if the size of the plugin changes.

This avoids constant repaints when scrolling the main frame with an embedded PDF.

Canonical link: https://commits.webkit.org/275355@main



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