[webkit-changes] [WebKit/WebKit] d62376: [UnifiedPDF] Going between page layout modes doesn...

[Sammy Gill]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: d6237610e33903698a8368b9bc1a7bf4af9495cc
      https://github.com/WebKit/WebKit/commit/d6237610e33903698a8368b9bc1a7bf4af9495cc
  Author: Sammy Gill <sammy.gill at apple.com>
  Date:   2024-05-03 (Fri, 03 May 2024)

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

  Log Message:
  -----------
  [UnifiedPDF] Going between page layout modes doesn't rescale or center appropriately
https://bugs.webkit.org/show_bug.cgi?id=273696
rdar://125381629

Reviewed by Abrar Rahman Protyasha and Simon Fraser.

To fix this, we can just force m_shouldUpdateAutoSizeScale to be set
right before we perform a document layout in this scenario. This will make
sure that the document gets refitted to the available width.

However, we should also respect if the document is already in
"Automatically Resize," mode. This means that we should not adjust the
page scale factor when performing this layout if the state was *already*
set.

* Source/WebKit/WebProcess/Plugins/PDF/UnifiedPDF/UnifiedPDFPlugin.mm:
(WebKit::UnifiedPDFPlugin::setDisplayModeAndUpdateLayout):

Canonical link: https://commits.webkit.org/278342@main



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