script: add skeleton implementation of FontFace API (#35262)

This patch implements the `FontFace` interface, but with some caveats

1. The interface is only exposed on `Window`. Support for Workers will
   be handled in the future.
2. The concept of `css-connected` `FontFace` is not implemented, so
   `@font-face` rules in stylesheets will not be represented in the DOM.
3. The constructor only supports using `url()` strings as source
   and `ArrayBuffer` and `ArrayBufferView` are not supported yet.

A skeleton implementation of the `load` method of `FontFaceSet` is also
implemented in this patch. The intention is to support some web pages
that don't load without this method.

Signed-off-by: Mukilan Thiyagarajan <mukilan@igalia.com>
This commit is contained in:
Mukilan Thiyagarajan 2025-02-19 11:20:01 +05:30 committed by GitHub
parent 29e0fad21e
commit 56840e0a35
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52 changed files with 1160 additions and 551 deletions

View file

@ -1,6 +1,3 @@
[layer-cssom-order-reverse.html]
[Insert layer invalidates @font-face]
expected: FAIL
[Delete layer invalidates @font-face]
expected: FAIL

View file

@ -1,9 +1,11 @@
[layer-font-face-override.html]
bug: https://github.com/servo/servo/issues/35520
[@font-face unlayered overrides layered]
expected: FAIL
expected: [FAIL, PASS]
[@font-face override between layers]
expected: FAIL
expected: [FAIL, PASS]
[@font-face override update with appended sheet 1]
expected: FAIL