Bump winit to 0.28.1
This fixes the following wayland-client error:
Attempted to dispatch unknown opcode 0 for wl_shm, aborting.
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Release selectors 0.24.0 and servo_arc 0.2.0
This patch extends #29361, bumping selectors to 0.24.0 and servo_arc to 0.2.0.
We’ll need to publish them too, in order to close#29105.
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Add a "shmem" feature to selectors to avoid publishing that dependency
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Hopefully as a way to help #29105, this PR adds a `shmem` feature to the selectors crate. This is so that the crate can be released with that feature off by default, as the `ToShmem` derives are only of interest to Servo, I think.
All the places where servo's source code includes the selectors crate are made to turn on this feature.
#26488 Move worklet drop implementation into single droppable member
Signed-off-by: Benjamin Freist <bfreist@soundhound.com>
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Hey @jdm ,
is this issue still free? I would like to start contributing to servo.
This patch is straight from PR 28302, I thought it would be good to start with a small part, I hope that's ok.
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Don't hold back the delivery of pending animation events
The script event loop can block for an indefinite period despite having pending animation-related events that it needs to deliver immediately.
The bug can cause a test timeout in `/css/css-transitions/events-001.html` but (to my knowledge) never manifested in `master` because any irrelevant messages received by the script thread afterward would unblock the event loop and cause it to process any pending animation-related events. We can reproduce the bug in `master` by removing [the `maybe_observe_paint_time` call][2] in `LayoutThread::compute_abs_pos_and_build_display_list`. This also explains the test failure [seen in #28708][1] because the same call is [commented out][3].
[1]: https://github.com/servo/servo/pull/28708#issuecomment-1080003778
[2]: 5448528279/components/layout_thread/lib.rs (L1156-L1157)
[3]: 03a41ffe32/components/layout_thread/lib.rs (L1186-L1187)
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Fixes the test case `/_mozilla/css/css-transition-cancel-event
.html`, which was failing under a specific circumstance.
The observed sequence of events during the failing test run looks like
this:
1. Transitions start in `div1` and `div2`.
2. `div1` generates a `transitionend` event.
3. The `transitionend` event handler removes `div2` from DOM, cancelling
its ongoing transition.
4. `div2` is supposed to generate a `transitioncancel` event in a timely
manner, which it does not. The test fails as a result.
What is going on here? Here's a possible explaination:
1. During one invocation of `ScriptThread::handle_msgs`...
2. In step 2, `ScriptThread::update_animations_send_events` -> `Document
::update_for_new_timeline_value` detects the completion of the
transition, and in response, pends the `transitionend` event.
3. In step 3, `ScriptThread::update_animations_send_events` ->
`Animations::send_pending_events` calls the `transitionend` handler.
4. The `transitionend` event handler removes `div2`, thereby cancelling
its ongoing transition and triggering a reflow.
5. Reflow takes place. During this, `Animations::do_post_reflow_update`
-> `Animations::handle_canceled_animations` pends the
`transitioncancel` event (precursor to step 4).
6. Having discovering that there was no running animation, `Animations::
do_post_reflow_update` calls `self.update_running_animation_presence
(_, false)`, which sends `AnimationState::NoAnimationsPresent`.
7. The invocation of `ScriptThread::handle_msgs` ends, and another
starts. It blocks waiting for events.
8. Meanwhile, the compositor receives `AnimationState::
NoAnimationsPresent` and stops further generation of animation ticks.
9. With no events to wake it up, the script thread is stuck waiting
despite having the pending `transitioncancel` event (step 4).
The HTML specification [says][1] that "an event loop must continually
run [...] as long as it exists" and does not say it can block if there
is nothing to do. Blocking is merely optimization in a user agent
implementation. Pending animation-related events must be processed every
time a "rendering opportunity" arises unless the user agent has a reason
to believe that it "would have no visible effect".
Skipping the processing of animation-related events would have visible
effect if such events are indeed present. The correct implementation in
Servo, therefore, would be to request more animation ticks so that such
events are processed in a subsequent tick.
[1]: https://html.spec.whatwg.org/multipage/#event-loop-processing-model
This commit reverses the order of the `send_pending_events` and
`update_animation_timeline` calls in `ScriptThread::update_animations_
send_events` so that animation-related events pended by the latter are
processed by the former.
The new calling order is more compliant with the "update animations and
send events" algorithm steps from [the Web Animations specification][1].
The old implementation was prone to blocking for an indefinite period
while holding pending events. Due to complex interaction with other
events and timing behavior, I was only able to reproduce the problem
under the following conditions:
- *The `maybe_observe_paint_time` call in `LayoutThread::compute_abs_
pos_and_build_display_list` is removed from the code*. While
performance events may seem irrelevant to the issue, they would
bombard the script thread with events. *Any* extra messages received
would unblock the event loop and prevent the manifestation of the
issue. (But, of course, we aren't supposed to count on that to avoid
the issue.)
- Servo is running in a headless mode, which somehow makes it less
likely for the script thread to receive a `TickAllAnimations` event
after sending `AnimationState::NoAnimationsPresent`.
With the above conditions met and the stars aligned, you can reproduce
the problem by running the WPT test `/css/css-transitions/events-001.
html`.
[1]: https://drafts.csswg.org/web-animations-1/#update-animations-and-send-events
Bump euclid to 0.22
Major changes:
- All matrices are now stored in row major order. This means that parameters to rotation functions should no longer be negated.
- `post_...()` functions are now named `then()`. `pre_transform()` is removed, so `then()` is used and the order of operations changed.
In addition, this PR updates lyon_geom to the latest version.
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- 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.
Replace use of the deprecated RUST_SYMBOL_TO_JSID by SymbolId
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A simple replacement of a deprecated function, according to changes in https://github.com/servo/mozjs/pull/315
That removes the only build warning I saw when doing a clobber.
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Fix absolute descendents being replaced when retreiving root
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The cause of #16410 is because calling `try_get_layout_root` will replace its `abs_descendants` even itself isn't absolute positioned. So I pushed them instead if the root isn't absolute. Also add a few docs and comments to help understand how block size of absolute flow is being calculated.
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Reduced testcase from the issue.
```html
<style>
html {
min-height: 100%;
position: relative;
}
div {
position: absolute;
bottom: 0;
width: 100%;
height: 25px;
border: 1px solid black;
}
</style>
<div>
</div>
```
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Allow displaying content with "application/json" mime type
For me this allows the WPT test
performance-timeline/tentative/include-frames-one-remote-child.sub.html
to match expected results. The wptserver is sending a 404 JSON response
because the URL that the test requests is not found.
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For me this allows the WPT test
performance-timeline/tentative/include-frames-one-remote-child.sub.html
to match expected results. The wptserver is sending a 404 JSON response
because the URL that the test requests is not found.
When turning DOM exceptions into `ErrorInfo` always try to stringify
the JavaScript value, even if it's an object that isn't a `DOMException`
or native exception. This means that exceptions that extend the `Error`
prototype are now stringified. The result is that test output for WPT
global assertion failures is more useful. For instance for the test
include-frames-from-child-same-origin-grandchild.sub.html:
Before:
```
uncaught exception: unknown (can't convert to string)
```
After:
```
uncaught exception: Error: assert_equals: expected 4 but got 3
```
Fix intermittency when loading poster images
Wait until a poster image is cached to in order to unblock document load. If not, the document may continue loading before the image is ready to use, leading to intermittency in test output. Now load is unblocked when getting the ImageResponse from the cache, which allows the code to properly unblock the load when the entire load fails or succeeds.
This reveals several false passes in the `object-view-box` test suite which were very flaky.
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- [x] These changes fix#29204.
- [x] These changes fix#29188.
- [x] These changes fix#29179.
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- 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>
Wait until a poster image is cached to in order to unblock document load. If
not, the document may continue loading before the image is ready to use,
leading to intermittency in test output. Now load is unblocked when
getting the ImageResponse from the cache, which allows the code to
properly unblock the load when the entire load fails or succeeds.
This reveals several false passes in the `object-view-box` test suite
which were very flaky.
Fixes#29204.
Fixes#29188.
Fixes#29179.
Signed-off-by: Martin Robinson <mrobinson@igalia.com>
components/net: Fix a double-lock in image_cache
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Add fn `add_listener_with_store` which requires `self.store.lock()` before calling.
Use this function instead of `add_listener` on L555 because `self.store.lock()` is called before.
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chore: upgrade the Rust toolchain to `nightly-2022-10-13`
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Use SPDX license format
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