This change also makes two fixes that are necessary to get WOFF2 fonts
working:
1. It adds support for loading web fonts from stylesheets included via
@import rules.
2. It ensure that when web fonts are loaded synchronusly they invalidate
the font cache. This led to incorrect font rendering when running
tests before.
Fixes#31598.
There is now platform-specific way to get metrics for `line-through` on
MacOS and currently striking through simply does not work. The correct
approach here is likely to first search for these metrics in font tables
and then falling back to deriving them. Searching the font tables is a
larger change, so this change adds the fallback mechanism first. This at
least makes sure that strike through renders at all on Mac.
In a followup change we can add support for getting metrics via HarfBuzz
in a platform-independent way, which is what Gecko does.
Fixes#942.
* rustdoc: Fix fontface broken link error
* Correct link to `Font`
* Reduce the diff a bit
---------
Co-authored-by: Martin Robinson <mrobinson@igalia.com>
The old logic was assuming that all whitespace was a break opportunity,
and that no newlines would be preserved.
Note that text shaping considers the advance of a newline to be the same
as a space. This was problematic because if we have a segment with a
preserved space and newline, only the advance of the space should
contrinute to the size of the block container. Therefore, I'm changing
the breaker logic in other to have newline characters in their own
segment.
Then glyph_run_is_whitespace_ending_with_preserved_newline can just be
renamed to glyph_run_is_preserved_newline.
This patch is still not perfect because it doesn't check allow_wrap(),
so `nowrap` is treated like `normal`, and `pre-wrap` like `pre`.
This brings the version of WebRender used in Servo up-to-date with Gecko
upstream. The big change here is that HiDPI is no longer handled via
WebRender. Instead this happens via a scale applied to the root layer in
the compositor. In addition to this change, various changes are made to
Servo to adapt to the new WebRender API.
Co-authored-by: Mukilan Thiyagarajan <mukilan@igalia.com>
Instead of using a simple `Atom` to identify a local font, use a data
structure. This allows us to carry more information necessary to
identify a local font (such as a path on MacOS). We need this for the
new version of WebRender, as fonts on MacOS now require a path.
This has a lot of benefits:
1. We can avoid loading fonts without paths on MacOS, which should
avoid a lot of problems with flakiness and ensure we always load the
same font for a given identifier.
2. This clarifies the difference between web fonts and local fonts,
though there is more work to do here.
3. This avoid a *lot* of font shenanigans, such as trying to work
backwards from the name of the font to the path of the font we
actually matched. In general, we can remove a lot of code trying to
accomplish these shenanigans.
4. Getting the font bytes always returns an `Arc` now avoiding an extra
full font copy in the case of Canvas.
Instead of letting Stylo filter `@font-face` rules, handle this
filtering in Servo. It doesn't make sense that Stylo knows about what
fonts Servo supports. This also cleans up a bit the way that this is
handled, giving an entire stylesheet of rules to the font cache to
process instead of letting each layout thread walk the rules. This
brings more of the font-related code into the FontCacheThread itself.
This is the first step toward adding WOFF2 support and fixing various
web font related bugs.
* clippy: fix warnings in components/gfx
* refactor: switched the order of impl so that its intent is clearer
* fix: add font context default in other platforms
Synthetic small caps is supported by the font subsystem, but this is
disabled in Layout 2020. We can turn this on to bring support to parity
with the old layout system.
In addition to turning on synthetic small-caps this change also improves
the way that they work. Before, synthetic small caps meant that every
character was a small version of capitalized character. After this
change, capital letters are larger than small caps versions of small
letters -- matching other browsers and the common expectation of how
small caps works.
We can use stable rust if we pass the unstable configuration as
command-line arguments to rustfmt itself. This prevents needing to
install an unstable rust toolchain.
The one downside here is that it doesn't seem that "ignore" is
supported so we have to start formatting the files in "third_party."
This shouldn't be a huge issue because we don't plan to check much more
rust code into those directories.
* Remove packages that were moved to external repo
* Add workspace dependencies pointing to 2023-06-14 branch
* Fix servo-tidy.toml errors
* Update commit to include #31346
* Update commit to include servo/stylo#2
* Move css-properties.json lookup to target/doc/stylo
* Remove dependency on vendored mako in favour of pypi dependency
This also removes etc/ci/generate_workflow.py, which has been unused
since at least 9e71bd6a70.
* Add temporary code to debug Windows test failures
* Fix failures on Windows due to custom target dir
* Update commit to include servo/stylo#3
* Fix license in tests/unit/style/build.rs
* Document how to build with local Stylo in Cargo.toml
* script: Do not run layout in a thread
Instead of spawning a thread for layout that almost always runs
synchronously with script, simply run layout in the script thread.
This is a resurrection of #28708, taking just the bits that remove the
layout thread. It's a complex change and thus is just a first step
toward cleaning up the interface between script and layout. Messages are
still passed from script to layout via a `process()` method and script
proxies some messages to layout from other threads as well.
Big changes:
1. Layout is created in the script thread on Document load, thus every
live document is guaranteed to have a layout. This isn't completely
hidden in the interface, but we can safely `unwrap()` on a Document's
layout.
2. Layout configuration is abstracted away into a LayoutConfig struct
and the LayoutFactory is a struct passed around by the Constellation.
This is to avoid having to monomorphize the entire script thread
for each layout.
3. Instead of having the Constellation block on the layout thread to
figure out the current epoch and whether there are pending web fonts
loading, updates are sent synchronously to the Constellation when
rendering to a screenshot. This practically only used by the WPT.
A couple tests start to fail, which is probably inevitable since removing
the layout thread has introduced timing changes in "exit after load" and
screenshot behavior.
Co-authored-by: Josh Matthews <josh@joshmatthews.net>
* Update test expectations
* Fix some issues found during review
* Clarify some comments
* Address review comments
---------
Co-authored-by: Josh Matthews <josh@joshmatthews.net>
In order for stylo to be a separate crate, it needs to depend on less
things from Servo. This change makes it so that stylo no longer depends
on servo_url.
This adds an initial implementation of font fallback, on part with the
one used in legacy layout. There are still issues. For instance, font
matching is done per unicode character rather than based on graphemes or
the shape first approach of Chrome. The idea is that these changes can
be made later.
This is a small cleanup that moves and renames this class. The rename is
simply because we are exposing a lot about the details of Servo's
rendering in the API and it makes sense to start thinking about
abstracting that away a bit.
This also moves the struct to `gfx`, which does have an effect on
Servo's dependency graph. This adds a new dependency on gfx to
`compositing`, but `compositing` had a transitive dependency on
gfx before through `canvas`.
* Replace time with std::time in components/gfx
Signed-off-by: devjos <github_11837948@feido.de>
* Remove time dependency in components/gfx/Cargo.toml
Signed-off-by: devjos <github_11837948@feido.de>
---------
Signed-off-by: devjos <github_11837948@feido.de>
Before counting whitepsace-only `GlyphStore`s where counted as a single
justification opportunity when trimming whitespace from the front and
back of lines. This isn't correct, instead count the actual number of
word seperators of the trimmed `GlyphStore`s.
These two counts can be different in the case where whitespace collapse
isn't happening yet (flexbox). In addition, using word seperators means
the code is making less assumptions about the contents of the line and
is more robust.
This fixes some crashes in flexbox tests on debug builds.
Co-authored-by: Rakhi Sharma <atbrakhi@igalia.com>
* Android build
* Fixes
* More fixes
- Still failing in the linking step
* More work on getting linking working
Signed-off-by: Mukilan Thiyagarajan <mukilan@igalia.com>
* android: use mozjs with ndk r25c. loads servo.org
more android build fixes.
* fix ./mach run for android and make it follow logs
Signed-off-by: Mukilan Thiyagarajan <mukilan@igalia.com>
* add experimental logic for compositor pause/resume
Signed-off-by: Mukilan Thiyagarajan <mukilan@igalia.com>
* pass DPI from android to simpleservo
Signed-off-by: Mukilan Thiyagarajan <mukilan@igalia.com>
* ci: add android workflow
Signed-off-by: Mukilan Thiyagarajan <mukilan@igalia.com>
* switch to ANDROID_SDK_ROOT and ANDROID_NDK_ROOT vars
Signed-off-by: Mukilan Thiyagarajan <mukilan@igalia.com>
* upgrade gradle to 4.10.1
Signed-off-by: Mukilan Thiyagarajan <mukilan@igalia.com>
* upgrade to gradle 5.1.1
Signed-off-by: Mukilan Thiyagarajan <mukilan@igalia.com>
* upgrade to gradle 8 and agp 8
Signed-off-by: Mukilan Thiyagarajan <mukilan@igalia.com>
* make compositing work again with external present
Signed-off-by: Mukilan Thiyagarajan <mukilan@igalia.com>
* android: improve mach support for non-NixOS and CI
Signed-off-by: Mukilan Thiyagarajan <mukilan@igalia.com>
* fix sampler compilation bug introduced in #30490
Signed-off-by: Mukilan Thiyagarajan <mukilan@igalia.com>
* ci: add android build to main workflow
Signed-off-by: Mukilan Thiyagarajan <mukilan@igalia.com>
* gradle: set MinSdk = targetSdk = 30
NDK requires we compile against the minSdk API level
which is 30 in our case.
Signed-off-by: Mukilan Thiyagarajan <mukilan@igalia.com>
* add instructions for android in README.md
Signed-off-by: Mukilan Thiyagarajan <mukilan@igalia.com>
* apk: move servosurface to servoview
Signed-off-by: Mukilan Thiyagarajan <mukilan@igalia.com>
* apk: uncomment the mediasession callbacks on MainActivity
Signed-off-by: Mukilan Thiyagarajan <mukilan@igalia.com>
* apk: fix crash on MainAtivity.onDestroy
Signed-off-by: Mukilan Thiyagarajan <mukilan@igalia.com>
* apk: drop VR, arm 5 and unused code
This commit drops:
* support for google, oculusvr
* support for arm5 architecture
and also removes
* fakeld scripts
* unused java code
Signed-off-by: Mukilan Thiyagarajan <mukilan@igalia.com>
* cleanup shell.nix
Signed-off-by: Mukilan Thiyagarajan <mukilan@igalia.com>
* android: add FIXMEs for gstreamer code
Signed-off-by: Mukilan Thiyagarajan <mukilan@igalia.com>
* apk: remove commented code and debug logs
Signed-off-by: Mukilan Thiyagarajan <mukilan@igalia.com>
* cleanup ServoView.java
Signed-off-by: Mukilan Thiyagarajan <mukilan@igalia.com>
* mach: comment call to download gstreamer deps for android
Signed-off-by: Mukilan Thiyagarajan <mukilan@igalia.com>
* disable bluetooth for jniapi as blurdroid is broken
Signed-off-by: Mukilan Thiyagarajan <mukilan@igalia.com>
* fixup! README.md
* fixup! remove change in Cargo.toml
* fixup! move shell variables together
* fixup! cleanup jniapi/Cargo.toml comments
* delete commented gstreamer related android code
Signed-off-by: Mukilan Thiyagarajan <mukilan@igalia.com>
* remove unused config variable in servbuild
Signed-off-by: Mukilan Thiyagarajan <mukilan@igalia.com>
* android: more cleanup
Signed-off-by: Mukilan Thiyagarajan <mukilan@igalia.com>
* force no_static_freetype only for android
* use actions to manage sdk, ndk and java
Signed-off-by: Mukilan Thiyagarajan <mukilan@igalia.com>
* rename embedder event names to be more clear.
Signed-off-by: Mukilan Thiyagarajan <mukilan@igalia.com>
* link to startup crash issue
Signed-off-by: Mukilan Thiyagarajan <mukilan@igalia.com>
* fix lint issues
Signed-off-by: Mukilan Thiyagarajan <mukilan@igalia.com>
* upgrade env_logger to 0.10 with duplicate exception
libservo and android_logger can use env_logger 0.10
but quickcheck is still stuck on 0.8 and has not seen
any activity in the last 2 years. This commit adds
a duplicate exception until the quickcheck dependency
can be upgraded (or replaced)
Signed-off-by: Mukilan Thiyagarajan <mukilan@igalia.com>
* android: fix comments
Signed-off-by: Mukilan Thiyagarajan <mukilan@igalia.com>
* disable jemalloc on android
Signed-off-by: Mukilan Thiyagarajan <mukilan@igalia.com>
* fixup! replace linux with android in cfg
---------
Signed-off-by: Mukilan Thiyagarajan <mukilan@igalia.com>
Co-authored-by: Martin Robinson <mrobinson@igalia.com>
* layout: Implement support for `line-height` and `vertical-align`
This is an initial implementation of proper `line-height` and
`vertical-align` support. While this change includes the bulk of the
work there are still many missing pieces for full support. In particular
some big missing things are:
- Flex containers do not properly compute their baselines. The idea is
to tackle this in a followup change. This causes various flex tests
to start failing because everything used to be top aligned.
- The implementation of the line-height quirks (only active in quirks
mode) are incomplete. While the quirk works in many cases, there are
still some cases where it is handled incorrectly. This requires more
redesign and refinement, better suited for a followup.
- Most of the features are CSS 3 such as precision control of the
baseline and first and last baselines are not implemented. This
change gets us close to CSS 2.x support.
While there are many new test passes with this change some tests are
starting to fail. An accounting of new failures:
Tests failing also in Layout 2013:
- /css/css2/positioning/toogle-abspos-on-relpos-inline-child.html (only passes in Chrome)
- /css/CSS2/fonts/font-applies-to-001.xht (potentially an issue with font size)
Invalid tests:
- /css/CSS2/visudet/inline-block-baseline-003.xht
- /css/CSS2/visudet/inline-block-baseline-004.xht
- These are are failing in all browsers. See https://bugs.chromium.org/p/chromium/issues/detail?id=1222151.
Missing table support:
- /_mozilla/mozilla/table_valign_middle.html
Missing `font-size-adjust` support :
- /css/css-fonts/font-size-adjust-zero-2.html (also failing in 2013)
Incomplete form field support :
- /html/rendering/widgets/the-select-element/option-add-label-quirks.html (label isn't rendered so button isn't the right size in quirks mode due to line height quirk)
Need support for calculating flexbox baseline:
- /css/css-flexbox/fieldset-baseline-alignment.html
- /css/css-flexbox/flex-inline.html
- /css/css-flexbox/flexbox-baseline-multi-line-horiz-001.html
- /css/css-flexbox/flexbox-baseline-single-item-001a.html
- /css/css-flexbox/flexbox-baseline-single-item-001b.html
Failing because we don't create anonymous inline boxes for text children of blocks:
- /css/CSS2/linebox/anonymous-inline-inherit-001.html
Passes locally (potentially related to fonts):
- /css/CSS2/css1/c414-flt-fit-004.xht
- /css/css-transforms/transform-input-017.html
- /html/obsolete/requirements-for-implementations/the-marquee-element-0/marquee-min-intrinsic-size.html
- /css/css-fonts/first-available-font-005.html
- /css/css-fonts/first-available-font-006.html
* Some cleanups after live review with @mukilan
Also update results.
We previously sent a " " to the linebreaker in order to ensure that the
next text had a soft wrap opportunity at the start. Calling `next(" ")`
without waiting until the returned index was 1, violated some
invariants of linebreaker ultimately causing a panic.
Instead of using the linebreaker for this, simply keep a flag in the
IFC layout state, which avoids the problem entirely.
Fixes#30703.
This is the start of the organization of types that are in their own
crates in order to break dependency cycles between other crates. The
idea here is that putting these packages into their own directory is the
first step toward cleaning them up. They have grown organically and it
is difficult to explain to new folks where to put new shared types. Many
of these crates contain more than traits or don't contain traits at all.
Notably, `script_traits` isn't touched because it is vendored from
Gecko. Eventually this will move to `third_party`.
This is a step toward upgrading WebRender, which will be upgraded and
patched in the `third_party` directory. This change vendors the current
private branch of WebRender that we use and adds a `patches` directory
which tracks the changes on top of the upstream WebRender commit
described by third_party/webrender/patches/head.
This will ultimately make it simpler to update crate dependencies and
reduce duplicate when specifying requirements. Generally, this change
does not touch dependencies that are only used by a single crate. We
could consider moving them to workspace dependencies in the future.
- Also updates raqote to latest with an upgrade of font-kit to 0.11
applied on as a patch
- Update lyon_geom to the latest version
Major change:
- All matrices are now stored in row major order. This means that
parameters to rotation functions no longer should be negated.
- `post_...()` functions are now named `then()`. `pre_transform()` is removed,
so `then()` is used and the order of operations changed.
- Mark some instances of unused fields and variables as as allowed,
when they are used for memory management.
- Remove the use of some deprecated function.s
Signed-off-by: Martin Robinson <mrobinson@igalia.com>
