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fonts: Add support for generic font families and font size configuration (#32673)

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This adds support for generic font families in Servo and allows for
configuration of them as well as their default font sizes. One
interesting fix here is that now monospace default to 13px, like it does
in other browsers.

In addition to that, this exposes a new interface in Stylo which allows
setting a default style. This is quite useful for fonts, but also for
other kinds of default style settings -- like text zoom.

Fixes #8371.
Fixes #14773.

Signed-off-by: Martin Robinson <mrobinson@igalia.com>
Co-authored-by: Mukilan Thiyagarajan <mukilan@igalia.com>
This commit is contained in:
Martin Robinson 2024-07-08 19:17:48 +02:00 • committed by GitHub
parent 956b7f62e0
commit 77e9e3deba
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32 changed files with 397 additions and 300 deletions
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19
components/fonts/tests/font_context.rs
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@ -12,8 +12,8 @@ use std::rc::Rc;
use app_units::Au;
use fonts::{
fallback_font_families, CSSFontFaceDescriptors, FallbackFontSelectionOptions, FontContext,
FontDescriptor, FontFamilyDescriptor, FontFamilyName, FontIdentifier, FontSearchScope,
FontSource, FontTemplate, FontTemplateRef, FontTemplates,
FontDescriptor, FontFamilyDescriptor, FontIdentifier, FontSearchScope, FontSource,
FontTemplate, FontTemplateRef, FontTemplates,
};
use ipc_channel::ipc;
use net_traits::ResourceThreads;
@ -97,12 +97,16 @@ impl FontSource for MockFontCacheThread {
fn find_matching_font_templates(
&self,
descriptor_to_match: Option<&FontDescriptor>,
font_family_name: &FontFamilyName,
font_family: &SingleFontFamily,
) -> Vec<FontTemplateRef> {
self.find_font_count.set(self.find_font_count.get() + 1);
let SingleFontFamily::FamilyName(family_name) = font_family else {
return Vec::new();
};
self.families
.borrow_mut()
.get_mut(font_family_name.name())
.get_mut(&*family_name.name)
.map(|family| family.find_for_descriptor(descriptor_to_match))
.unwrap_or_default()
}
@ -295,8 +299,11 @@ fn test_font_template_is_cached() {
pt_size: Au(10),
};
let family_descriptor =
FontFamilyDescriptor::new(FontFamilyName::from("CSSTest Basic"), FontSearchScope::Any);
let family = SingleFontFamily::FamilyName(FamilyName {
name: "CSSTest Basic".into(),
syntax: FontFamilyNameSyntax::Quoted,
});
let family_descriptor = FontFamilyDescriptor::new(family, FontSearchScope::Any);
let font_template = context.matching_templates(&font_descriptor, &family_descriptor)[0].clone();