This introduces a basic framework for servo's style system to be able
to query the style of presentation attributes which it can then insert
into the cascade. It uses that framework to implement the size and
color attributes on <font>.
There are a number of improvements that can be done on top of this:
- Implement all other properties
- Abstractify the ruledata parameter of the mappers using templates or virtual dispatch so that it can be a Servo decl block instead
- Implement aforementiond abstraction over Servo decl blocks (this obsoletes the code in the first item above, so it might just be better to skip that and directly do this)
- Replace uses of nsHTMLStyleSheet with an abstract base class containing common elements between Servo and Gecko
I'd prefer for these to be done in separate steps.
Counter part of bug 1328787 - Stylo: Convert Servo's animation keyframes and store them into Gecko's keyframes
<!-- Please describe your changes on the following line: -->
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 b5c94bad37. It might be bit-rotted.
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [ ] These changes fix #__ (github issue number if applicable).
<!-- Either: -->
- [ ] There are tests for these changes OR
- [X] These changes do not require tests because gecko has test cases.
<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->
<!-- Reviewable:start -->
---
This change is [<img src="https://reviewable.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/servo/15287)
<!-- Reviewable:end -->
Now animation-timing-function in keyframe is stored as specified
TransitionTimingFunction. We need a way to convert it to nsTimingFunction too.
MozReview-Commit-ID: C8j5PmJFm2i
We use TElement::get_animation_rule to get the animation rules from
Gecko side, which contain the interpolated values of the specific
element and the pseudo type.
I don't know why they were that way, but it makes no sense and tests still pass.
MozReview-Commit-ID: HAIuQhqlTtF
Signed-off-by: Emilio Cobos Álvarez <emilio@crisal.io>
I will use this soon to implement the media query evaluation code.
Please review carefully.
MozReview-Commit-ID: HXelawXBfH8
Signed-off-by: Emilio Cobos Álvarez <emilio@crisal.io>
The getter function may create an nsCSSValue with allocated stuff, and we don't
want to leak it.
MozReview-Commit-ID: DYkUD8CW88E
Signed-off-by: Emilio Cobos Álvarez <emilio@crisal.io>
The setup is quite different to Servo-land, so add a comment about the different
setup.
Also, check viewport rules when flushing stylesheets. I believe that the
previous behavior is plain wrong, though I haven't taken the time to come up
with a test case.
In any case, it doesn't hurt any of both back-ends.
MozReview-Commit-ID: 46gtTkesOsr
Signed-off-by: Emilio Cobos Álvarez <emilio@crisal.io>