[webkit-changes] [WebKit/WebKit] e0a8ad: [iOS] REGRESSION(265596 at main) Captions fail to ren...

[Jer Noble]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: e0a8ad8a73cac61855ac287a954115d35bfe60f9
      https://github.com/WebKit/WebKit/commit/e0a8ad8a73cac61855ac287a954115d35bfe60f9
  Author: Jer Noble <jer.noble at apple.com>
  Date:   2023-07-24 (Mon, 24 Jul 2023)

  Changed paths:
    M Source/WebCore/Modules/modern-media-controls/controls/text-tracks.css

  Log Message:
  -----------
  [iOS] REGRESSION(265596 at main) Captions fail to render in video-fullscreen mode
https://bugs.webkit.org/show_bug.cgi?id=259438
rdar://112496682

Reviewed by Eric Carlson.

VTTCues now use `cqw` and `cqh` units to define the height of individual cues. However,
the text-track-container did not establish a container for those units, so the height of
the still-inline <video> element was used to generate the height of cues. In the case of
very small <video> elements, this resulted in no visible cues being painted.

Instead, mark the text-track-container as a basis for inline and block size calculations.

* Source/WebCore/Modules/modern-media-controls/controls/text-tracks.css:
(video::-webkit-media-text-track-container):

Canonical link: https://commits.webkit.org/266243@main