Update on what happened in WebKit in the week from November 24 to December 1.
The main highlights for this week are the completion of `PlainMonthDay` in Temporal, moving networking access for GstWebRTC to the WebProcess, and Xbox Cloud Gaming now working in the GTK and WPE ports.
Cross-Port 🐱
Multimedia 🎥
GStreamer-based multimedia support for WebKit, including (but not limited to) playback, capture, WebAudio, WebCodecs, and WebRTC.
Xbox Cloud Gaming is now usable in WebKitGTK and WPE
with the GstWebRTC backend, we had to fix non-spec compliant ICE candidates
handling and add a WebRTC quirk
forcing max-bundle in PeerConnections
to make it work. Happy cloud gaming!
Support for remote inbound RTP statistics was improved in
303671@main, we now properly report
framesPerSecond and totalDecodeTime metrics, those fields are used in the
Xbox Cloud Gaming service to show live stats about the connection and video
decoder performance in an overlay.
The GstWebRTC backend now relies on librice for its ICE. The Sans-IO architecture of librice allows us to keep the WebProcess sandboxed and to route WebRTC-related UDP and (eventually) TCP packets using the NetworkProcess. This work landed in 303623@main. The GNOME SDK should also soon ship librice.
Support for seeking in looping videos was fixed in
303539@main.
JavaScriptCore 🐟
The built-in JavaScript/ECMAScript engine for WebKit, also known as JSC or SquirrelFish.
Implemented the valueOf and
toPlainDate for PlainMonthDay objects.
This completes the implementation of
Temporal
PlainMonthDay objects in JSC!
WebKitGTK 🖥️
The GTK port has gained support for interpreting touch input as pointer events. This matches the behaviour of other browsers by following the corresponding specifications.
WPE WebKit 📟
Fixed an issue that prevented WPE from processing further input events after receiving a secondary mouse button press.
Fixed an issue that caused right mouse button clicks to prevent processing of further pointer events.
WPE Platform API 🧩
New, modern platform API that supersedes usage of libwpe and WPE backends.
We landed a patch to add a new signal
in WPEDisplay to notify when the connection to the native display has been lost.
Infrastructure 🏗️
Modernized the CMake modules used to find libtasn1, libsecret, libxkbcommon, libhyphen, and Enchant libraries.
Note that this work removed the support for building against Enchant 1.x, and only version 2 will be supported. The first stable release to require Enchant 2.x will be 2.52.0 due in March 2026. Major Linux and BSD distributions have included Enchant 2 packages for years, and therefore this change is not expected to cause any trouble. The Enchant library is used by the GTK port for spell checking.
Community & Events 🤝
We have published an article detailing our work making MathML interoperable across browser engines! It has live demonstrations and feature tables with our progress on WebKit support.
We have published new blogs post highlighting the most important changes in both WPE WebKit and WebKitGTK 2.50. Enjoy!
That’s all for this week!
