These are interdependent patches of Bug 1357357. We add one more arm, TransitionProperty::Unsupported, which stores the string of non-animatable, custom, or unrecognized property, so we can parse these kinds of properties and serialize them correctly. This is necessary because we need to start transitions even though some transition-properties are non-animatable, custom, or unrecognized.
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This used to make `RUST_LOG=style` basically useless.
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If there are multiple prefixed/non-prefixed @keyframes with the same name;
* non-prefixed rule overrides earlier rules.
* prefixed rule overrides earlier prefixed rules.
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This is PR of https://bugzilla.mozilla.org/show_bug.cgi?id=1356779
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Before this PR, every object reflected in CSSOM is in `Arc<RwLock<_>>` to enable safe (synchronized) mutable aliasing. Acquiring all these locks has significant cost during selector matching:
* https://bugzilla.mozilla.org/show_bug.cgi?id=1311469
* https://bugzilla.mozilla.org/show_bug.cgi?id=1335941
* https://bugzilla.mozilla.org/show_bug.cgi?id=1339703
This PR introduce a mechanism to protect many objects with the same `RwLock` that only needs to be acquired once.
In Stylo, there is one such lock per process (in a `lazy_static`), used for everything.
I non-Stylo Servo, I originally intended to have one such lock per document (for author-origin stylesheets, and one per process for user-agent and user sytlesheets since they’re shared across documents, and never mutated anyway). However I failed to have the same document-specific (or pipeline-specific) `Arc` reachable from both `Document` nodes and `LayoutThread`. Recursively following callers lead me to include this `Arc` in `UnprivilegedPipelineContent`, but that needs to be serializable. So there is a second process-wide lock.
This was previously #15998, closed accidentally.
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This is on top of https://github.com/servo/servo/pull/15928.
Now that cascade() gets a Device ref, we can use the default computed values
from there to avoid propagating that state all over the place.
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This is a PR of https://bugzilla.mozilla.org/show_bug.cgi?id=1340961
All patches has been reviewed by @emilio.
Thanks!
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We should create KeyframeAnimation even if css keyframe rule is empty because we should fire css animation events for such CSS animations.
Also we should ignore properties that are annotated with '!important'. From the spec[1].
using !important on them is invalid and will cause the property to be ignored
[1] https://drafts.csswg.org/css-animations-1/#keyframes
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Reviewed by @heycam, An exception is auto-generated bindgen stuff, I did not include it in patches on bugzilla. The bindgen diff included in this PR was generated with b5c94bad371114ab9f03e910f66c00a042997fc2. It might be bit-rotted.
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* `LonghandId` and `ShorthandId` are C-like enums
* `Atom` is used for the name of custom properties.
* `PropertyDeclarationId` is the identifier for `PropertyDeclaration`,
after parsing and shorthand expansion. (Longhand or custom property.)
* `PropertyId` represents any CSS property, e.g. in CSSOM.
(Longhand, shorthand, or custom.)
CC @upsuper
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ToCss implementation was wrong about Keyframe percentage values, it was writing values between 0-1. I had to fix it. Wrote some tests about CSSKeyframesRule, CSSNamespaceRule, CSSRuleList, CSSStyleSheet, StyleSheetList interfaces.
CSSFontFaceRule and CSSViewportRule looks like not implemented yet. I didn't write one for them.
Also name attribute in CSSKeyframesRule isn't implemented yet. Is there any complication about it? If not, I can implement it.
r? @Manishearth
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CSSOM is now starting to be useful!
Based on #14190. Only the <s>last commit</s> last two commits need review.
cc @xidorn . This doesn't change the style API, but adds useful methods.
part of #11420
This adds:
- `insertRule()` and `deleteRule()` on `CSSStyleSheet`, `CSSGroupingRule`
- `.style` getters on link and style elements
- Keyframes-backed `CSSRules` and `CSSKeyframesRule.cssRules`
- `CSSGroupingRule.cssRules`
- `prefix` and `namespaceURI` attributes of `CSSNamespaceRule`
- Fixups regarding parent stylesheets
r? @SimonSapin
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Implementation of ToCss serialization for CSSRules. It requires #14190 to merge first to uncomment `CssRule::Style` branch in CssRule's ToCss implementation.
r? @Manishearth
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CSSOM needs hold potentially multiple references (through `Arc`) to these objects, and then mutate them.
CC @upsuper
r? @mbrubeck
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As discussed in https://bugzilla.mozilla.org/show_bug.cgi?id=1305141Closes#13176
---
Original PR title: Stop relying on `impl<T: HeapSizeOf> HeapSizeOf for Arc<T>`
https://github.com/servo/heapsize/issues/37#issuecomment-249861171
This builds on top of that.
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Since #13134, the "normal" and "important" parts of `Stylist` are identical, so we don’t need to store them twice.
r? @emilio
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`DOMRefCell` usage is not there year because of thread-safety questions, but I have this much already that I’d like to land before it bitrots.
r? @emilio
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Have a single Vec instead of two. Fix#3426
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Part of #11916.
r? @SimonSapin
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More for https://github.com/servo/servo/issues/11815
r? @nox
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This adds support for parsing `@keyframes` rules, and animation properties. Stylo will need it sometime soonish, plus I want to make animations work in Servo.
The remaining part is doin the math and trigger the animations correctly from servo. I don't expect it to be *that* hard, but probaby I'll need to learn a bit more about the current animation infra (e.g. why the heck is the `new_animations_sender` guarded by a `Mutex`?).
I'd expect to land this, since this is already a bunch of work, this is the part exclusively required by stylo (at least if we don't use Servo's machinery), the media query parsing is tested, and the properties land after a flag, but if you prefer to wait until I finish this up it's fine for me too.
r? @SimonSapin
cc @pcwalton @bholley
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