Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 9a19a4c1d52631669a0e93575af4d967d97a1d0e
      
https://github.com/WebKit/WebKit/commit/9a19a4c1d52631669a0e93575af4d967d97a1d0e
  Author: Dana Estra <[email protected]>
  Date:   2025-08-25 (Mon, 25 Aug 2025)

  Changed paths:
    A 
LayoutTests/imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/lang_object/lang_attribute-expected.html
    A 
LayoutTests/imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/lang_object/lang_attribute.html
    A 
LayoutTests/imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/lang_object/lang_color-expected.html
    A 
LayoutTests/imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/lang_object/lang_color.html
    A 
LayoutTests/imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/support/test_lang_object.vtt
    M Source/WebCore/html/track/VTTCue.cpp

  Log Message:
  -----------
  Add id and lang attributes to WebVTT root node and add layout tests for lang 
selectors
https://bugs.webkit.org/show_bug.cgi?id=297796
rdar://158961777

Reviewed by Jer Noble.

This patch adds a lang attribute to the webvtt root node matching the track's 
srclang attribute,
if it has one. This is a step towards implementing the behavior that a cue 
should be matched by
::cue([lang=xy]), where xy is the track srclang.

This patch also adds an id attribute to the webvtt root node if the node is 
given one in the .vtt.
This is a step towards implementing the ::cue(#id) selector.

Lastly this patch adds missing tests for ::cue([lang=xy]) and ::cue(lang). As 
of now,
lang_color.html (which tests ::cue(lang)) passes but lang_attribute.html (tests 
::cue([lang=xy]))
does not, due to work that still needs to be done to make ::cue(selector) match 
the root webvtt node.

* 
LayoutTests/imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/lang_object/lang_attribute-expected.html:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/lang_object/lang_attribute.html:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/lang_object/lang_color-expected.html:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/selectors/cue_function/lang_object/lang_color.html:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/webvtt/rendering/cues-with-video/processing-model/support/test_lang_object.vtt:
 Added.
* Source/WebCore/html/track/VTTCue.cpp:
(WebCore::VTTCue::obtainCSSBoxes):

Canonical link: https://commits.webkit.org/299115@main



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