stylo: Bug 1353628 - Support shorthand properties for CSS Transition.
These patches add shorthand properties into TransitionProperty, so we can parse the shorthand properties properly and create transitions for them.
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- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix Bug 1353628
- [X] There are tests for these changes
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Now that cascade() gets a Device, we can use the default computed values from
there to avoid propagating that state all over the place.
Signed-off-by: Emilio Cobos Álvarez <emilio@crisal.io>
At least until we support scrollbars properly, this size is going to be the
correct one. I've left a TODO to grab the proper one once we support it.
This allows to trivially test viewport units for now.
MozReview-Commit-ID: JdaZ6WlZ2C6
Signed-off-by: Emilio Cobos Álvarez <emilio@crisal.io>
animation-iteration-count property is a number instead of integer.
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This is a revised PR for #14732.
@emilio?
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transition is the same as the end value for a running transition per
CSS-TRANSITIONS § 3.
Besides being contrary to spec, the old behavior could cause a cascade
of CSS transitions incorrectly triggering themselves when calls to
`getComputedStyle()` were intermingled with them.
Improves performance of nytimes.com.
This commit itself only moves things around and adds an extra parameter to the
`apply_declarations` function to eventually handle #14079 correctly.
Probably needs a more granular API to query fonts, á la nsFontMetrics, but
that's trivial to do once this is landed.
Then we should make the font provider mandatory, and implement the missing stylo
bits.
RuleTreeDeclarationsIterator would yield &PropertyDeclaration
with the lifetime of the rule tree, but the reference would only
be valid as long as the iterator was holding the corresponding lock.
The lock would be released when the iterator’s `.next()` method
moves to the next rule tree node, or when the iterator is dropped.
Also change apply_declaration to not require a `Clone` iterator
(since closures unfortunately don’t implement `Clone`).
Instead have it take a callable that returns a fresh iterator.
This patch introduces infrastructure for the rule tree, and constructs it.
We don't use it yet, nor have good heuristics for GC'ing it, but this should not
happen anymore once we store the rule node reference in the node.
I haven't messed up with memory orders because I want to do a try run with it,
then mess with them.
Take down the ApplicableDeclarationsCache, use the rule tree for doing the cascade.
In the Gecko case, this style source would be the style context. In the servo
case, it will be always the computed values.
We could optimise this further in the case of stylo (from three FFI calls to
one) if we use an API of the form CalcAndStore(node, new_cv). But that would
imply borrowing the data twice from Servo (we also have borrow_data_unchecked
fwiw, but...).
The previous behavior is plain wrong, since that array has always at least one
element, so we effectively couldn't specify anything else than "ease" in our
animations.
If we're restyling a page with animations and layout takes too long, we
might still have the expired animations from the last restyle, without these
being cleared out by layout on `tick_animations`.
Unfortunately it's hard (near to impossible?) to make a reduced test case for
this, since it heavily depends on the speed of the build and conditions that
only happen under heavy loads.
Mainly, it depends on how accurately the `TickAllAnimations` message is sent
from the constellation.
Thus, we can't just re-expire an animation, and we should re-check for it as a
previous animation.
Fixes#12171
Staticize CASCADE_PROPERTIES, (temporarily) fix stylo path for animations, and introduce the long-term path to follow
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@bholley: I was going to do this "the good way", but that involves quite a few properties, so I thought I'd rather unlock stylo before :)
r? @bholley
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This commit adds a need_index prop to the style system, and autogenerates
iterators, and a get_xxx_mod(i) function from a get_xxx_prop() and
get_xxx_at(index) functions.
This allows us to (finally!) take rid of the as_servo() hack. There are a few
unimplemented clones, but I'm just too lazy for that right now.
As a follow-up, we could move all the data living under a mutex in the
SharedLayoutContext only in order to create the local context to the same place.
This should increase animation performance when there are multiple animations in
one page that happen to be on different threads.
