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LibWeb: Include system emoji font in a font cascade list

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Adds emoji rendering support on macOS and linux (if it has "Noto Color
Emoji" font).
This commit is contained in:
Aliaksandr Kalenik 2024-09-05 22:35:01 +02:00 committed by Tim Flynn
parent c88e76add7
commit 22b8380e37
Notes: github-actions[bot] 2024-09-06 12:31:40 +00:00 
Author: https://github.com/kalenikaliaksandr
Commit: https://github.com/LadybirdBrowser/ladybird/commit/22b8380e379
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/1297
Reviewed-by: https://github.com/trflynn89
4 changed files with 17 additions and 0 deletions
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11
Ladybird/FontPlugin.cpp
View file

@ -61,6 +61,17 @@ Gfx::Font& FontPlugin::default_fixed_width_font()
return *m_default_fixed_width_font;
}
RefPtr<Gfx::Font> FontPlugin::default_emoji_font(float point_size)
{
#ifdef AK_OS_MACOS
auto default_emoji_font_name = "Apple Color Emoji"_fly_string;
#else
auto default_emoji_font_name = "Noto Color Emoji"_fly_string;
#endif
return Gfx::FontDatabase::the().get(default_emoji_font_name, point_size, 400, Gfx::FontWidth::Normal, 0);
}
#ifdef USE_FONTCONFIG
static Optional<String> query_fontconfig_for_generic_family(Web::Platform::GenericFont generic_font)
{

1
Ladybird/FontPlugin.h
View file

@ -19,6 +19,7 @@ public:
virtual Gfx::Font& default_font() override;
virtual Gfx::Font& default_fixed_width_font() override;
virtual RefPtr<Gfx::Font> default_emoji_font(float point_size) override;
virtual FlyString generic_font_name(Web::Platform::GenericFont) override;
void update_generic_fonts();

4
Userland/Libraries/LibWeb/CSS/StyleComputer.cpp
View file

@ -2325,6 +2325,10 @@ RefPtr<Gfx::FontCascadeList const> StyleComputer::compute_font_for_style_values(
font_list->extend(*other_font_list);
}
if (auto emoji_font = Platform::FontPlugin::the().default_emoji_font(font_size_in_pt); emoji_font) {
font_list->add(*emoji_font);
}
auto found_font = StyleProperties::font_fallback(monospace, bold);
font_list->set_last_resort_font(found_font->with_size(font_size_in_pt));

1
Userland/Libraries/LibWeb/Platform/FontPlugin.h
View file

@ -33,6 +33,7 @@ public:
virtual Gfx::Font& default_font() = 0;
virtual Gfx::Font& default_fixed_width_font() = 0;
virtual RefPtr<Gfx::Font> default_emoji_font(float point_size) = 0;
virtual FlyString generic_font_name(GenericFont) = 0;
};