Fix#6799: set stacking_context_position correctly on fragment_border_iterator
Hey,
First of all, this is my first PR to Servo project and I'm learning Rust, so sorry if you see something that it's not correct. I did that as best as I know.
This PR fix the issue #6799; I tried all the corner cases that I can think about it and always get the right result and the same as other browsers.
Related to the build:
- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] These changes fix#6799
In the other hand, I added the test in the cssom folder, is where getBoundingClientRect is defined, so I think that is the best place.
I'm sure that the line 122 can be better, but I didn't find a way to transform a Point2D from f32 to px in a easy way.
I'm here to listen to your recommendations and fix any issue.
Thanks!
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Implement "update the image data"
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Spec compliant implementation of the [update the image data algorithm](https://html.spec.whatwg.org/multipage/embedded-content.html#update-the-image-data).
Currently still a work in progress, the ['async src complete test`](https://github.com/servo/servo/blob/master/tests/wpt/web-platform-tests/html/semantics/embedded-content/the-img-element/img.complete.html#L33) is still passing as it was before, even though I switched to the new code, so I guess that's something.
@jdm I will be picking this up next weekend, I left a bunch of TODO and NOTES in the code, if you or someone else have time this week I would appreciate an initial scan and feedback.
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This makes the code cleaner, and also documents the fact that effective_rules
recurses into imports.
No we're not adding the imported stylesheets twice, and we share code with the
invalidation analysis.
MozReview-Commit-ID: DOF2AViTlmR
Apparently my whole conception of how the list of sheets in the styleset looked
like was flawled, and we only ever get one append_sheet for the topmost
stylesheet, instead of one for each.
MozReview-Commit-ID: FMClygMJkTc
Using stack-allocated variable for font feature setting
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Using stack-allocated small vector instead of the previous vector<u8>.
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remove no-op viewport code
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MallocSizeOf is similar to the existing HeapSizeOf trait from the
heapsize crate. The only difference is that MallocSizeOf's
malloc_size_of_children() function takes an additional MallocSizeOfFn
argument, which is used to measure heap blocks. This extra argument
makes MallocSizeOf match how Gecko's memory measurements work, and is
required for Stylo to integrate with DMD.
The patch also introduces a second trait, MallocSizeOfWithGuard, which
is much the same as MallocSizeOf, but with a |guard| argument for the
global style lock.
Finally, the patch uses the new traits to measure a small amount of
Stylo's memory usage.
