Truly independent web browser ladybird.org
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ayeteadoe f4c8fd4bef LibCore+LibWebView+UI/Qt: Support TimeZoneWatcher on Windows
To detect system time zone changes on Windows, the event we need to look
for is WM_TIMECHANGE. The problem is how the callback with said message
actually gets invoked is very particular. (1) We must have an active
message pump (event loop) for the message to ever be processed. (2) We
must be a GUI application as WM_TIMECHANGE messages are seemingly sent
to top level windows only. It doesn't say that in the docs for the
event, but attempts of creating a LibTest-based application with a
message pump and a message only window and never receiving the event
point to that probably being true.

This workaround is built off the fact that Qt's message pump defined
internally in QEventDispatcherWin32::processEvents does in fact receive
WM_TIMECHANGE events, even though it is not exposed as a QEvent::Type.
Given the requirements stated above it makes sense that it works here as
the message pump is executing in a QGuiApplication context. So we use a
native event filter to hook into the unexposed WM_TIMECHANGE event and
forward it along to the on_time_zone_changed() callback.

Note that if a Windows GUI framework is done in the future, we'll have
to re-add support to ensure the TimeZoneWatcher still gets invoked.
2025-10-05 15:46:15 +02:00
.devcontainer Devcontainer: Add libtool to dependencies 2025-10-03 15:00:09 +01:00
.github Meta: Fix libjs-test262 CI workflow 2025-09-28 11:22:55 -04:00
AK AK: Initialize StringBuilder buffer in place 2025-10-05 11:24:46 +02:00
Base/res LibWeb+LibWebView+WebContent: Replace DNT with GPC 2025-09-16 10:38:20 +02:00
Documentation LibWeb/CSS: Mark list-valued properties 2025-10-04 22:57:00 +02:00
Libraries LibCore+LibWebView+UI/Qt: Support TimeZoneWatcher on Windows 2025-10-05 15:46:15 +02:00
Meta Meta: Update fast_float to v8.1.0 in Flatpak manifest 2025-10-05 14:41:01 +02:00
Services WebDriver: Support custom properties in WebDriver::get_element_css_value 2025-10-02 13:46:04 +01:00
Tests LibCore: Remove unused macOS FileWatcher implementation 2025-10-05 15:46:15 +02:00
Toolchain Meta: Add SPDX license identifier to ladybird.py and BuildVcpkg.py 2025-05-29 16:24:17 -04:00
UI LibCore+LibWebView+UI/Qt: Support TimeZoneWatcher on Windows 2025-10-05 15:46:15 +02:00
Utilities Everywhere: Fix even more typos 2025-08-27 08:48:01 +02:00
.clang-format Meta: Enforce newlines around namespaces 2025-05-14 02:01:59 -06:00
.clang-tidy Meta: Disable clang-tidy's const correctness checks 2025-07-08 11:04:15 -04:00
.clangd Meta: Change the default build directories to exclude "ladybird" prefix 2024-11-06 10:38:57 -07:00
.editorconfig
.gitattributes LibGfx: Remove support for the various "portable" image formats 2024-06-17 21:57:35 +02:00
.gitignore CMake: Add a flatpak build for org.ladybird.Ladybird 2025-07-08 11:45:32 -06:00
.gn Meta: Automatically generate a compilation database for clangd 2023-11-14 14:29:35 -05:00
.mailmap Meta: Update my e-mail address everywhere 2024-10-04 13:19:50 +02:00
.pre-commit-config.yaml Meta: Replace deprecated pre-commit stage name 2024-10-18 09:40:59 +02:00
.prettierignore Meta: Don't lint imported WPT crash tests with prettier 2025-06-22 23:51:34 +02:00
.prettierrc
.swift-format Meta: Add swift-format configuration 2024-07-30 18:38:02 -06:00
.swift-version Meta: Update swift version to 2025-06-22 2025-07-09 16:26:49 -06:00
.ycm_extra_conf.py Meta: Sort all python imports 2025-06-09 11:25:14 -04:00
CMakeLists.txt LibWebView: Enable in Windows CI 2025-08-23 16:04:36 -06:00
CMakePresets.json LibWebView: Enable in Windows CI 2025-08-23 16:04:36 -06:00
CODE_OF_CONDUCT.md Meta: Add code of conduct (from the Ruby community) 2024-10-02 09:49:52 +02:00
CONTRIBUTING.md Meta: Add Gregory Bertilson to maintainer list :^) 2025-08-21 14:20:45 +02:00
ISSUES.md Everywhere: Document use of ladybird.py over ladybird.sh 2025-05-29 16:24:17 -04:00
LICENSE Meta: Update license year 2025-02-10 11:40:57 +00:00
pyproject.toml Meta: Use "extend-select" to enable non-default python linters 2025-06-09 17:49:35 -04:00
README.md Libraries: Remove LibArchive 2024-11-25 13:37:45 +01:00
SECURITY.md Documentation: Make updates to align better with new issue template 2024-10-31 09:18:08 +01:00
vcpkg-configuration.json Meta: Add overlay port for vulkan-loader 2024-07-07 15:56:59 +02:00
vcpkg.json LibWeb: Implement XPath functionality using libxml2 2025-10-03 13:16:11 +02:00

Ladybird

Ladybird is a truly independent web browser, using a novel engine based on web standards.

Important

Ladybird is in a pre-alpha state, and only suitable for use by developers

Features

We aim to build a complete, usable browser for the modern web.

Ladybird uses a multi-process architecture with a main UI process, several WebContent renderer processes, an ImageDecoder process, and a RequestServer process.

Image decoding and network connections are done out of process to be more robust against malicious content. Each tab has its own renderer process, which is sandboxed from the rest of the system.

At the moment, many core library support components are inherited from SerenityOS:

  • LibWeb: Web rendering engine
  • LibJS: JavaScript engine
  • LibWasm: WebAssembly implementation
  • LibCrypto/LibTLS: Cryptography primitives and Transport Layer Security
  • LibHTTP: HTTP/1.1 client
  • LibGfx: 2D Graphics Library, Image Decoding and Rendering
  • LibUnicode: Unicode and locale support
  • LibMedia: Audio and video playback
  • LibCore: Event loop, OS abstraction layer
  • LibIPC: Inter-process communication

How do I build and run this?

See build instructions for information on how to build Ladybird.

Ladybird runs on Linux, macOS, Windows (with WSL2), and many other *Nixes.

How do I read the documentation?

Code-related documentation can be found in the documentation folder.

Get in touch and participate!

Join our Discord server to participate in development discussion.

Please read Getting started contributing if you plan to contribute to Ladybird for the first time.

Before opening an issue, please see the issue policy and the detailed issue-reporting guidelines.

The full contribution guidelines can be found in CONTRIBUTING.md.

License

Ladybird is licensed under a 2-clause BSD license.