[webkit-changes] [WebKit/WebKit] 56fda5: [content-visibility] Support content-visibility fo...

[Rob Buis]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 56fda589ecc211863ce21915e7a9e0f0b13445ba
      https://github.com/WebKit/WebKit/commit/56fda589ecc211863ce21915e7a9e0f0b13445ba
  Author: Rob Buis <rbuis at igalia.com>
  Date:   2022-12-01 (Thu, 01 Dec 2022)

  Changed paths:
    M LayoutTests/imported/w3c/web-platform-tests/css/css-contain/content-visibility/content-visibility-030-expected.txt
    M LayoutTests/imported/w3c/web-platform-tests/css/css-contain/content-visibility/content-visibility-031-expected.txt
    M Source/WebCore/dom/Document.cpp
    M Source/WebCore/page/ResizeObservation.cpp
    M Source/WebCore/page/ResizeObservation.h

  Log Message:
  -----------
  [content-visibility] Support content-visibility for resize/intersection observer
https://bugs.webkit.org/show_bug.cgi?id=245776

Reviewed by Darin Adler.

Implement restrictions to resize and intersection observers as specified in the specification:
https://w3c.github.io/csswg-drafts/css-contain/#cv-notes (Items 1 and 2)

* LayoutTests/imported/w3c/web-platform-tests/css/css-contain/content-visibility/content-visibility-030-expected.txt:
* LayoutTests/imported/w3c/web-platform-tests/css/css-contain/content-visibility/content-visibility-031-expected.txt:
* Source/WebCore/dom/Document.cpp:
(WebCore::computeIntersectionState):
* Source/WebCore/page/ResizeObservation.cpp:
(WebCore::ResizeObservation::computeObservedSizes const):
(WebCore::ResizeObservation::elementSizeChanged const):
* Source/WebCore/page/ResizeObservation.h:

Canonical link: https://commits.webkit.org/257256@main