[webkit-changes] [WebKit/WebKit] f99fba: Add way to check whether iframe's owner element ma...

[Basuke Suzuki]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: f99fba6f4b88b7538876ecc2d490efc81eeebdb7
      https://github.com/WebKit/WebKit/commit/f99fba6f4b88b7538876ecc2d490efc81eeebdb7
  Author: Basuke Suzuki <basuke at apple.com>
  Date:   2025-01-31 (Fri, 31 Jan 2025)

  Changed paths:
    A LayoutTests/http/tests/iframe-monitor/dark-mode-expected.txt
    A LayoutTests/http/tests/iframe-monitor/dark-mode.html
    M LayoutTests/http/tests/iframe-monitor/resources/monitor-setup.js
    M Source/WebCore/dom/Document.cpp
    M Source/WebCore/dom/Document.h
    M Source/WebCore/page/LocalFrame.cpp
    M Source/WebCore/rendering/style/RenderStyleConstants.h

  Log Message:
  -----------
  Add way to check whether iframe's owner element may follow dark appearance
https://bugs.webkit.org/show_bug.cgi?id=286713
rdar://143827621

Reviewed by Aditya Keerthi.

Need to detect iframe element in main document may respond to dark appearance in CSS or document’s meta tag.

Add `Document::resolvedColorScheme(RenderStyle*) const` to get the element's color scheme to check which scheme
is ready to be used for the element.

* LayoutTests/http/tests/iframe-monitor/dark-mode-expected.txt: Added.
* LayoutTests/http/tests/iframe-monitor/dark-mode.html: Added.
* LayoutTests/http/tests/iframe-monitor/resources/monitor-setup.js:
(async waitUntilUnload):
* Source/WebCore/dom/Document.cpp:
(WebCore::Document::resolvedColorScheme const):
(WebCore::Document::useDarkAppearance const):
* Source/WebCore/dom/Document.h:
* Source/WebCore/page/LocalFrame.cpp:
(WebCore::generateResourceMonitorErrorHTML):
(WebCore::LocalFrame::showResourceMonitoringError):
* Source/WebCore/rendering/style/RenderStyleConstants.h:

Canonical link: https://commits.webkit.org/289613@main



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