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

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@ -524,7 +524,7 @@ enum ToFetchThreadMessage {
FetchResponse(FetchResponseMsg),
}
pub type BoxedFetchCallback = Box<dyn Fn(FetchResponseMsg) + Send + 'static>;
pub type BoxedFetchCallback = Box<dyn FnMut(FetchResponseMsg) + Send + 'static>;
/// A thread to handle fetches in a Servo process. This thread is responsible for
/// listening for new fetch requests as well as updates on those operations and forwarding
@ -601,7 +601,7 @@ impl FetchThread {
matches!(fetch_response_msg, FetchResponseMsg::ProcessResponseEOF(..));
self.active_fetches
.get(&request_id)
.get_mut(&request_id)
.expect("Got fetch response for unknown fetch")(
fetch_response_msg
);