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The Servo Browser Engine
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Martin Robinson 78e2691d3f
shaping: Don't assume there's a space glyph when rendering tabs (#32979) 
Previously if a font didn't have a space advance and it was needed to
make advances for tabs, Servo would try to read the advance from the
font. If the font didn't have a space glyph, Servo would panic. This
fixes that issue by making the space advance part of the `FontMetrics`
of a font (like Gecko) and falling back properly if that glyph doesn't
exist. The rendered glyph is still the "space" glyph, but we make
sure to select a font that supports that glyph explicitly.

This prevents a crash, but tabs still aren't handled properly. In
reality, tab stops should be calculated in layout and the size of
the space character of the current font shouldn't come into play.
The addition of the space advance metric will make this easier.

Fixes #32970.

Signed-off-by: Martin Robinson <mrobinson@igalia.com>
2024-08-23 11:17:44 +00:00
.cargo Make crown optional (#32494) 2024-06-24 11:46:43 +00:00
.github CI: Add separate Lint&Tidy check and remove test-tidy from linux (#33150) 2024-08-23 08:58:12 +00:00
.vscode Format toml files (#30112) 2023-08-17 15:07:43 +00:00
components shaping: Don't assume there's a space glyph when rendering tabs (#32979) 2024-08-23 11:17:44 +00:00
docs Update in-tree docs to point to the new book (#32743) 2024-07-09 15:42:00 +00:00
etc Update Rust to 1.80.1 (#33008) 2024-08-12 11:40:46 +00:00
ports/servoshell make protocol handlers registrable (#33104) 2024-08-22 04:11:16 +00:00
python CI: Add separate Lint&Tidy check and remove test-tidy from linux (#33150) 2024-08-23 08:58:12 +00:00
resources layout: Add initial support for bidirectional text (BiDi) (#33148) 2024-08-21 14:28:54 +00:00
support replace once_cell (#33080) 2024-08-16 04:49:50 +00:00
tests shaping: Don't assume there's a space glyph when rendering tabs (#32979) 2024-08-23 11:17:44 +00:00
third_party Update WebIDL.py (#32495) 2024-06-15 04:22:42 +00:00
.clang-format Run test-tidy on Windows 2019-11-21 09:56:39 +01:00
.flake8 Improve formatting of Python files (#30919) 2023-12-24 23:58:37 +00:00
.gitattributes mark test/wpt as vendored in .gitattributes (#32663) 2024-07-02 11:23:18 +00:00
.gitignore Android: load url from Intent, plus fixed some warnings (#32160) 2024-04-29 13:14:10 +00:00
.mailmap Update Tetsuharu OHZEKI's entry in mailmap 2019-11-15 00:46:45 +09:00
Cargo.lock make protocol handlers registrable (#33104) 2024-08-22 04:11:16 +00:00
Cargo.toml build(deps): bump unicode-properties from 0.1.1 to 0.1.2 (#33142) 2024-08-20 17:18:51 +00:00
CLOBBER Add clobber mechanism 2017-05-08 16:19:56 +02:00
CODE_OF_CONDUCT.md Clarify the Code of Conduct (closes servo/servo.org#164) (#32835) 2024-07-23 09:12:03 +00:00
CONTRIBUTING.md Update in-tree docs to point to the new book (#32743) 2024-07-09 15:42:00 +00:00
deny.toml Add cargo-deny to mach-tidy to check license compliance. (#32465) 2024-06-12 09:54:45 +00:00
Info.plist remove bhtml 2018-02-11 08:02:39 +01:00
LICENSE Update MPL license to https (part 1) 2018-11-19 14:46:43 +01:00
mach Make Android build optional on Nix (#31231) 2024-02-02 02:13:24 +00:00
mach.bat Make mach.bat request Python 3 2021-05-22 18:27:10 +09:00
PULL_REQUEST_TEMPLATE.md Minor pull request template cleanup 2018-12-08 13:11:37 -08:00
README.md Update mozjs (SpiderMonkey) to 128.0 (#32769) 2024-07-29 07:20:15 +00:00
rust-toolchain.toml CI: Add separate Lint&Tidy check and remove test-tidy from linux (#33150) 2024-08-23 08:58:12 +00:00
rustfmt.toml mach: Do not use unstable rust for rustfmt (#31441) 2024-02-28 13:53:04 +00:00
SECURITY.md Update new issue URL in SECURITY.md (#31698) 2024-03-15 15:03:49 +00:00
servo-tidy.toml build(deps): bump flate2 from 1.0.31 to 1.0.32 (#33141) 2024-08-21 23:28:44 +00:00
servobuild.example Add OpenHarmony support to mach and CI (#32507) 2024-06-17 11:27:23 +00:00
shell.nix Nix: allow nix-shell without explicit path to shell.nix (#32035) 2024-04-17 07:02:31 +00:00
taplo.toml Format toml files (#30112) 2023-08-17 15:07:43 +00:00

README.md

The Servo Parallel Browser Engine Project

Servo is a prototype web browser engine written in the Rust language. It is currently developed on 64-bit macOS, 64-bit Linux, 64-bit Windows, and Android.

Servo welcomes contribution from everyone. Check out The Servo Book to get started, or go to servo.org for news and guides.

Getting started

For more detailed build instructions, see the Servo book under Setting up your environment, Building Servo, and Building for Android.

macOS

  • Download and install python, Xcode, and brew
  • Install rustup: curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
  • Restart your shell to make sure cargo is available
  • Install the other dependencies: ./mach bootstrap
  • Build servoshell: ./mach build

Linux

  • Install curl and python:
    • Arch: sudo pacman -S --needed curl python python-pip
    • Debian, Ubuntu: sudo apt install curl python3-pip python3-venv
    • Fedora: sudo dnf install curl python3 python3-pip python3-devel
    • Gentoo: sudo emerge net-misc/curl dev-python/pip
  • Install rustup: curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
  • Restart your shell to make sure cargo is available
  • Install the other dependencies: ./mach bootstrap
  • Build servoshell: ./mach build

Windows

  • Download and install python, choco, and rustup
    • Be sure to select Quick install via the Visual Studio Community installer
  • In the Visual Studio Installer, ensure the following components are installed:
    • Windows 10 SDK (10.0.19041.0) (Microsoft.VisualStudio.Component.Windows10SDK.19041)
    • MSVC v143 - VS 2022 C++ x64/x86 build tools (Latest) (Microsoft.VisualStudio.Component.VC.Tools.x86.x64)
    • C++ ATL for latest v143 build tools (x86 & x64) (Microsoft.VisualStudio.Component.VC.ATL)
    • C++ MFC for latest v143 build tools (x86 & x64) (Microsoft.VisualStudio.Component.VC.ATLMFC)
  • Restart your shell to make sure cargo is available
  • Install the other dependencies: .\mach bootstrap
  • Build servoshell: .\mach build

Android

  • Ensure that the following environment variables are set:
    • ANDROID_SDK_ROOT
    • ANDROID_NDK_ROOT: $ANDROID_SDK_ROOT/ndk/26.2.11394342/ ANDROID_SDK_ROOT can be any directory (such as ~/android-sdk). All of the Android build dependencies will be installed there.
  • Install the latest version of the Android command-line tools to $ANDROID_SDK_ROOT/cmdline-tools/latest.
  • Run the following command to install the necessary components: 
    sudo $ANDROID_SDK_ROOT/cmdline-tools/latest/bin/sdkmanager --install
 "build-tools;33.0.2" \
 "emulator" \
 "ndk;26.2.11394342" \
 "platform-tools" \
 "platforms;android-33" \
 "system-images;android-33;google_apis;x86_64"
  • Follow the instructions above for the platform you are building on