Improve decisions in compositor over when to draw a frame.
This patch fixes a couple of issues in the compositor:
1) Remove the delayed composition code. Previously, this would schedule
a composite for 12ms in the future. This doesn't really make any sense
with WR. There's no point in doing a composite unless WR has provided
a new frame to be drawn. This fixes issues in several benchmarks where
we were doing multiple composite / renders per rAF, which is a waste
of CPU time. This *does* make the framerate slower in some cases (such
as a slow rAF callback) but it's more correct - otherwise we were just
compositing the same frame multiple times for no real benefit.
2) Inform the window of the current animation state of the compositor.
Specifically, if an animation (or rAF) is currently active, the
window system switches to use event polling, and does not block on
the OS-level event loop. In the case of active animation, we just
assume that we want to be running as the vsync interval and not
blocking. This means the compositor thread only sleeps on vsync
during animation, which reduces OS scheduling and results in much
smoother animation.
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Make background gradient cover padding
CSS-gradients should not only cover the content of an
element but also the padding (but not the border).
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Thanks to @atouchet for catching this.
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- [x] These changes fix#17387 (github issue number if applicable).
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- [x] These changes do not require tests because gradients are hard to test automatically but you can use [this gist](https://gist.github.com/pyfisch/fa263c8dfc57e5812fe8a4869ad61513) as a manual test.
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Add an update_stylesheet method to StylesheetSet.
MozReview-Commit-ID: KlRkApYL8wk
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Provides a method for just-cloned sheets to be swapped in to stylesheet_sets without changing the order or triggering restyle.
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Before this commit, we assumed that if the element had no parent element, it was
the root of the document, which is plain false, since we can arrive there from,
let's say, getComputedStyle on a detached node.
Bug: 1374062
Reviewed-By: heycam
MozReview-Commit-ID: 65DxdzXgd0J
Expose -moz-context-properties on stylo
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Gecko already exposed `-moz-context-properties` behind pref `svg.context-properties.content.enabled`. I think we should do the same thing on stylo and make the reftests of `context-fill` and `context-stroke` pass.
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- [x] These changes fix [Bug 1370797](https://bugzilla.mozilla.org/show_bug.cgi?id=1370797)
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We simply implement ToCss for Option<T>, printing nothing if the value is None,
and we then use SequenceWriter to skip writing of separators around empty parts.
This fixes another rAF bug, that is being exposed by the previous
two commits. Previously, the fake timer callback would only be
set if we were being called from a non-rAF event handler.
Now, if we're in fake / spurious mode, unconditionally set the one
shot timer.
Otherwise, notify the compositor that animations are present if
we're not currently in a rAF callback.
This patch doesn't modify any of the code because making a few things pub. I
did this first to make the next patch easier to audit.
MozReview-Commit-ID: 7PYxoS5bVGN
This makes the code easier to work with, and fixes a bug where we don't currently
reject pseudo-elements within :not().
MozReview-Commit-ID: Cgl9w0PBsN3
Stylo: Correct style match for element instances under a use-element …
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This patch is the last one of bug 265894.
It fixes two things:
1. Do not cross shadow tree boundary while matching rules.
2. Change display value to 'inline' while cloning a root symbol element instance.
Bugzilla link:
https://bugzilla.mozilla.org/show_bug.cgi?id=265894
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style: Have OneOrMoreSeparated replace OneOrMoreCommaSeparated.
**NOTE** The alternative for me is just to duplicate the ToCss code, which is not bad and is less code changed! Don't know what others would think, though. Looking for feedback!
A future patch series has some values that should be separated by spaces. This
allows us to re-use the code for serialization, but the types do get a little
clunky. The separator is now indicated with an associated type.
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stylo: Bug 1369625 - Make stop-color, flood-color, lighting-color animatable.
This is an interdependent patch of Bug 1369625. We make stop-color, flood-color, and lighting-color animatable by using IntermediateRGBA as the animation value type, just like 'color'
attribute. On the Gecko-side, we enable/add the reftest of them and update WPT expectations for these properties.
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Don't run normal traversal for animation only restyle element
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https://bugzilla.mozilla.org/show_bug.cgi?id=1356141
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