Fix radial gradients for html canvas element
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The latest version of raqote provides a fix for properly handling boundary conditions for TwoCircleRadialGradients.
---
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- [x] These changes fix part of #25331
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Add support for getComputedStyle() to layout_2020
These changes add support for `getComputedStyle()` to layout_2020.
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This implementation is more-or-less on par with the one from layout_2013
and in some cases better. There are still some cases where we don't
return the correct "resolved value," but this is enough to test
animations and transitions.
Initiate redirect fetching iff the request has a location
Without this checking, we will run into a TIMEOUT request because
http_redirect_fetch will return immediately when location doesn't exist.
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- [x] These changes partially fix#25606
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Add referrerpolicy to list of relevant mutations
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`img.referrerPolicy` change now mutates the image.
Not all `referrerPolicy` attribute changes result in an image update event.
Only valid changes are reflected.
All referrerpolicy tests inside `relevant-mutations.html` WPT test now pass.
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- [x] These changes fix#26388
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```
./mach test-wpt tests/wpt/web-platform-tests/html/semantics/embedded-content/the-img-element/relevant-mutations.html
```
This fixes#26388. referrerPolicy is now calls onload for image
mutations. Not all referrerPolicy attribute changes result in an image
update event. Only valid changes are reflected.
Referrerpolicy tests now pass.
Generalize the 2020 regression report to show local unexpected failures
Example usage:
```
./mach test-wpt --release --layout-2020 --log-raw /tmp/servo.log
./tests/wpt/reftests-report/gen.py /tmp/servo.log
firefox ./tests/wpt/reftests-report/report.html
```
Produces a report similar https://community-tc.services.mozilla.com/api/index/v1/task/project.servo.layout-2020-regressions-report/artifacts/public/regressions.html, but showing unexpected reftest failures. The CI-generated one shows Layout 2020 failures (expected or not) that succeed in Layout 2013.
Have animations more closely match the HTML spec
These two commits do two major things:
**Have animations ticks trigger a restyle**: This corrects synchronization issues with animations,
where the values used in layout are out of sync with what is returned by `getComputedStyle`.
**Tick the animation timer in script according to spec**: This greatly reduces the flakiness of
animation and transitions tests.
Fixes#13865.
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- [ ] These changes fix#13865
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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.
Update window.open() to return fallible result
- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] These changes partially fix#26287
- [x] There are tests for these changes
