Allow stylo to do lazier stylist rebuilds
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A specified position is now a struct made of two values of different types,
the first one being PositionComponent<X>, and the second one PositionComponent<Y>.
A position component is represented by the new enum PositionComponent<Side>,
with the three values Center, Length(LengthOrPercentage), and
Side(Side, Option<LengthOrPercentage>).
Side keywords are represented by the X and Y enums, which don't include a value
for the center keyword anymore. They are accompanied by the Side trait, which
allows us to determine whether a side keyword is "left" or "top".
This refactor simplified the parsing and serialisation code and exposed bugs in it,
where it would reject valid <position> values followed by arbitrary tokens,
and where it would fail to prefer "left" to "right" when serialising positions
in basic shapes.
This is likely to be important at least for the initial element.
For the rest of them this is likely useless because we create them in a
throwaway fashion.
MozReview-Commit-ID: EFz9WUdB8S0
Signed-off-by: Emilio Cobos Álvarez <emilio@crisal.io>
I've chosen this approach mainly because there's no other good way to guarantee
the model is correct than holding the snapshots alive until a style refresh.
What I tried before this (storing them in a sort of "immutable element data") is
a pain, since we call into style from the frame constructor and other content
notifications, which makes keeping track of which snapshots should be cleared an
which shouldn't an insane task.
Ideally we'd have a single entry-point for style, but that's not the case right
now, and changing that requires pretty non-trivial changes to the frame
constructor.
MozReview-Commit-ID: FF1KWZv2iBM
Signed-off-by: Emilio Cobos Álvarez <emilio@crisal.io>
Combine ComputeDuration and Interpolate into a single trait
Pull request for [Gecko bug 1363573](https://bugzilla.mozilla.org/show_bug.cgi?id=1363573)
The pull request has been reviewed by @hiikezoe
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stylo: Export RefPtr<ImageValue> to stylo.
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This is the second patch in bug 1310885
"Bug 1310885 - Part 2. (stylo) Export RefPtr<ImageValue> from gecko to stylo."
Bugzilla link:
https://bugzilla.mozilla.org/show_bug.cgi?id=1310885
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Sync binding files with autoland
It seems there are lots of difference between servo in-tree files and autoland. To reduce the chance of having conflict, I'd like to sync binding files with the latest version generated from autoland when no one is landing anything.
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register stylo threads with the gecko profiler
Now that we require rayon 0.7, we can register start and stop handlers
that take care of dealing with the Gecko profiler for rayon threads in
the style thread pool.
Manually verified that adding "StyleThread" to the list of threads tracked by the Gecko profiler addon caused lots of threads to show up in a profile, and all the stack unwinding goodness seems to work!
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Now that we require rayon 0.7, we can register start and stop handlers
that take care of dealing with the Gecko profiler for rayon threads in
the style thread pool.
Add comments to shorthand alias logic that explains the interesting bahavior
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bump required rayon version to 0.7
...and bring jpeg-decoder along for the ride. Minor tweaks were necessary because of rayon API changes.
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Fix variable serialization bug on shorthand alias properties
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-moz-transform were having a problem with variable serialization. It wasn't printing transform's value and transform wasn't printing -moz-transform's if their value was a variable. This PR fixes that.
Reduces stylo -moz-transform failures to 2: https://treeherder.mozilla.org/#/jobs?repo=try&revision=3fd3a57873e5e98dfcb173eef4b13822a66fdf6a
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Use hash2 instead of deprecated hash
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