fonts: Add support for more @font-face features#32164
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mrobinson merged 1 commit intoservo:mainfrom Apr 29, 2024
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@font-face features
mukilan
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Apr 29, 2024
components/gfx/font_cache_thread.rs
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Should we add a comment noting why this is not simply derive(Debug)?
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Oh, good point. I've updated this to remove our custom version of the Debug. I think the real fix here is to not truncate URLs in ServoUrl Debug impl.
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There are a couple major changes here: 1. Support is added for the `weight`, `style`, `stretch` and `unicode-range` declarations in `@font-face`. 2. Font matching in the font cache can return templates and `FontGroupFamily` can own mulitple templates. This is due to needing support for "composite fonts". These are `@font-face` declarations that only differ in their `unicode-range` definition. This fixes a lot of non-determinism in font selection especially when dealing with pages that define "composite faces." A notable example of such a page is servo.org, which now consistently displays the correct web font. One test starts to fail due to an uncovered bug, but this will be fixed in a followup change. Fixes servo#20686. Fixes servo#20684. Co-authored-by: Mukilan Thiyagarajan <mukilan@igalia.com>
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There are a couple major changes here:
weight,style,stretchandunicode-rangedeclarations in@font-face.FontGroupFamilycan own mulitple templates. This is due to needingsupport for "composite fonts". These are
@font-facedeclarationsthat only differ in their
unicode-rangedefinition.This fixes a lot of non-determinism in font selection especially when
dealing with pages that define "composite faces." A notable example of
such a page is servo.org, which now consistently displays the correct
web font.
One test starts to fail due to an uncovered bug, but this will be fixed
in a followup change.
Fixes #20686.
Fixes #20684.
Co-authored-by: Mukilan Thiyagarajan mukilan@igalia.com
./mach build -ddoes not report any errors./mach test-tidydoes not report any errors