Removed unused imports
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix#11185
- [X] These changes do not require tests because it only removes dead code.
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This fixes#11185.
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style: Add infrastructure to support lazy pseudo-elements
This builds on top of #10815, so it's really just the last commit the one that should be reviewed.
I tried to apply the new infrastructure to servo, but failed (for now?).
The problem with it is that it'd require `ThreadSafeLayoutElement` to implement `selectors::Element`, which is a lot of work and might be racy (not totally sure about it though). Thus, I prefered to keep selectors eager until knowing that it's safe to do it.
r? @mbrubeck for style changes, @bholley for the geckolib changes (minimal for now, glue + a list of lazy PEs must be added)
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These can't be supported in Servo as of right now, because I'm not
totally sure the accesses that should be done in layout would be
thread-safe.
It can be revisited later though.
style: Support anonymous box pseudo-elements
This is a work-in-progress that:
* Adds support for some pseudo-elements to skip the cascade entirely, in an analogous way to Gecko's anonymous box pseudo-elements.
* Takes rid of `StylistWrapper`, and uses `Arc::get_mut` instead.
* Uses the first bullet to precompute the `-servo-details-content` pseudo's style.
I'd like @bholley to take a look before following, do you think that the aproach is the correct?
Also, @SimonSapin could want to put some eyes on it.
Depends on https://github.com/servo/rust-selectors/pull/81
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Extracted shorthands to separate files.
Following up on #10813, here is a similar extraction of the shorthand stuff as well.
I've deliberately tried to keep things similarly structured as in the longhand files. I.e. if a given property is in e.g. longhand/box.mako.rs, the shorthand stuff that relates to the same property is in shorthand/box.mako.rs and so forth.
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The file is now down from ~7000 LoC to ~1750. A big improvement in my eyes, but there's still room for improving more. However, that shouldn't be done until we've had a bit of discussion about it. What we've done so far has been more-or-less obvious (after resolving the underlying Python/Mako issues with how to get things to properly communicate when things got split into multiple files etc). The remaining stuff is basically a plethora of anything from enums to structs to impls to... you name it.
One way to try and sort this out is to continue abusing Mako %include:s for this. I'm not sure it's the right way, but it would be a reasonably _easy_ way to do it. Another way would be to use Rust modules/crates etc. for sorting it out. I feel like too much of a novice on the Rust side of stuff yet to have any sensible opinions on how to get that done, so here I'd very much like suggestions from other people in the project.
(This is more of an entry point for discussion, and we could very well move that to a separate issue if you like. I think the more important short-term point is to try and get this merged. 😊 Please let me know if you feel it is OK, and if not, feel free to suggest adjustments.)
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While we're here we also:
* remove any code conditional on style_struct.gecko_ffi_name, since all
style structs now do have a corresponding Geckos struct
* add new UIReset and XUL style structs, so that all Gecko structs are
now present (apart from Variables, which is special)
