This is a small step toward fixing #19242. The main idea is that the
clock for animations should advance as the event loop ticks. We
accomplish this by moving the clock from layout and naming it the
"animation timeline" which is the spec language. This should fix
flakiness with animations and transitions tests where a reflow could
move animations forward while script was running.
This change also starts to break out transition and animation events
into their own data structure, because it's quite likely that the next
step in fixing #19242 is to no longer send these events through a
channel.
This change corrects synchronization issues with animations, by
reworking the animation processing model to do a quick restyle and
incremental layout when ticking animations.
While this change adds overhead to animation ticks, the idea is that
this will be the fallback when synchronous behavior is required to
fulfill specification requirements. In the optimistic case, many
animations could be updated and applied off-the-main-thread and then
resynchronized when style information is queried by script.
Fixes#13865.
This is triggered when an animation finishes. This is a high priority
because it allows us to start rooting nodes with animations in the
script thread.
This doesn't yet cause a lot of tests to pass because they rely on the
existence of `Document.getAnimations()` and the presence of
`animationstart` and animationiteration` events.
Improve devtools experience when navigating
The primary motivation for this work was to fix#15425, and these changes make it possible to use the devtools to meaningfully inspect multiple pages when navigating between them. Navigating through session history is not yet supported.
These changes also include improvements to the dedicated worker support, which broke at some point. We now can observe console messages in workers.
Break the association between pipelines and browsing context actors.
Now there is one browsing context actor per actual browsing context,
and individual actors keep track of known pipelines as necessary.
There is also one console/performance/timeline/inspector/etc. actor
per browsing context.
This also centralizes more information in the browsing context actor.
Rather than duplicating state for the active pipeline in actors that
need to use it, each actor now remembers the name of its associated
browsing context actor and obtains that state whenever it's necessary.
These events are triggered as soon as a transition is added to the list
of running transitions. This will allow better test coverage while
reworking the transitions and animations processing model.
This change adds support for canceling CSS transitions when a property
is no longer transitionable or when an element becomes styled with
display:none. Support for canceling and replacing CSS transitions when
the end value changes is still pending. This change also takes advantage
of updating the constellation message to fix a bug where transition
events could be sent for closed pipelines.
Fixes#15079.
Restructure Blob, structured serialization
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FIX#24052 and also address the "cloning" half of FIX#23917
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Implement timer-task-source, time-out service worker
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Implements the timer task-source, and folds the IPC glue-code into a single route set by the globalscope.
Also switches service worker to using a dedicated "time-out" mechanism, which previously relied on the timer mechanism(and I think didn't actually implement script timers).
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Initial implementation of WebGPU API
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- Added the WebIDL bindings for GPU and GPUadapter interfaces.
- Created a background thread for WebGPU api calls.
- Established the async communication between the background thread and the WebGPU interfaces.
- Implemented the `requesAdapter` function of `navigator.gpu`
`./mach test-tidy` reports an error due to the different `arrayvec` version used in `servo` and `webgpu`, so added it to the ignore list in `servo-tidy.toml`
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- [ ] These changes addresses a part of #https://github.com/servo/servo/issues/24706
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cc @jdm, cc @kvark
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Prevent panic on layout send in finish-load
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Do not run the finish load steps if the pipeline has been discarded by the time the parser finishes.
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Fix unloading, active BC, and clearing js runtime
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Do not set the window to be the currently active one for the windowproxy as part of `load`, as it will be done later when the document activity is set. And doing it later means that when unload runs, it is with the unloaded pipeline as the active window.
Only nullify the window proxy if it's not used by another (currently-active) window.
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Async wasm compilation event loop integration
The PR contains changes related to binding the runnable dispatching in script_runtime and is part of the Asynchronous WebAssembly Compilation fix. This is the first step in the subsequent steps mentioned in the [wiki](https://github.com/servo/servo/wiki/Asynchronous-WebAssembly-compilation-project).
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Reduce unnecesarily large borrow in script thread
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Accept transfer argument for StructuredCloneData::write
Allow structured clone reads to return a boolean
Add Transferable trait
Add basic skeletons to MessagePort
Implement transfer and transfer-receiving steps on MessagePort
Use transfer and transfer_receive in StructuredClone callbacks
Implement MessageChannel
Freeze the array object for the MessageEvent ports attribute
Implement transfer argument on window.postMessage
Use ReentrantMutex instead for MessagePortInternal
Accept origin as a parameter in dispatch_jsval
Fix BorrowMut crash with pending_port_message
Detach port on closure and check for detached during transfer
Enable webmessaging tests
fix webidl
fix
do not handle compositor input events when BC is being discarded
prevent firing of timers for discarded BCs
return null for opener is BC has been discarded
bundle discard BC steps into window method
return null in window.opener, if BC has already been discarded
move the window closed check pre-event to script-thread
