Bail out gracefully on malformed kern table headers.
This changes a debug assert to a debug log and early return.
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- [x] These changes fix#12081 (github issue number if applicable).
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Avoid many uses of unwrap in font_cache_thread.rs
Replaced `result.send(...blah...).unwrap()` with `let _ = result.send(...blah...);` in `components/gfx/font_cache_thread.rs`
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix#12188
- [X] These changes do not require tests because @jdm said if it compiles it's good enough
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Add style check and test for else braces
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Added a regex check to enforce project style guidelines. Added unit check. Catches:
```
}
else {
```
when it should be
`} else {`
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- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix#12234 (github issue number if applicable).
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Avoid deadlock when closing a pipeline.
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At the moment, the constellation blocks on a pipeline during closure. This PR makes pipeline closure asynchronous.
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- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix#11546.
- [X] These changes do not require tests because testing for absence of deadlock is difficult.
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WebRender.
This happens asynchronously, just as it does in non-WebRender mode.
This functionality is a prerequisite for doing proper display-list-based
hit testing in WebRender, since it moves the scroll offsets into Servo
(and, specifically, into the script thread, enabling iframe event
forwarding) instead of keeping them private to WebRender.
Requires servo/webrender_traits#55 and servo/webrender#277.
Partially addresses #11108.
Always include the last-resort font
This is used as a fallback for any characters that don't have glyphs in the specified font. Without this, per-glyph font fallback doesn't work because the FontGroup always contains only one font. Fixes missing glyphs on many pages on my Linux box.
As a follow-up, we should probably have a smarter strategy for finding fallback fonts, possibly varying by script. (Currently we just have a few hard-coded family names.)
r? @glennw
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