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LibWeb: Support loading FontFaces constructed with binary data

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Andrew Kaster 2024-05-13 12:02:38 -06:00 • committed by Andrew Kaster
commit 60b3436ea3
Notes: sideshowbarker 2024-07-18 05:01:22 +09:00
8 changed files with 245 additions and 13 deletions
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22
Userland/Libraries/LibWeb/CSS/FontFace.h
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@ -6,7 +6,11 @@
#pragma once
#include <LibGfx/Font/VectorFont.h>
#include <LibURL/URL.h>
#include <LibWeb/Bindings/FontFacePrototype.h>
#include <LibWeb/Bindings/PlatformObject.h>
#include <LibWeb/CSS/ParsedFontFace.h>
namespace Web::CSS {
@ -28,7 +32,7 @@ class FontFace final : public Bindings::PlatformObject {
JS_DECLARE_ALLOCATOR(FontFace);
public:
using FontFaceSource = Variant<String, JS::Handle<JS::ArrayBuffer>, JS::Handle<WebIDL::ArrayBufferView>>;
using FontFaceSource = Variant<String, JS::Handle<WebIDL::BufferSource>>;
[[nodiscard]] static JS::NonnullGCPtr<FontFace> construct_impl(JS::Realm&, String family, FontFaceSource source, FontFaceDescriptors const& descriptors);
virtual ~FontFace() override = default;
@ -66,12 +70,16 @@ public:
String line_gap_override() const { return m_line_gap_override; }
WebIDL::ExceptionOr<void> set_line_gap_override(String const&);
Bindings::FontFaceLoadStatus status() const { return m_status; }
JS::ThrowCompletionOr<JS::NonnullGCPtr<JS::Promise>> load();
JS::NonnullGCPtr<JS::Promise> loaded() const;
private:
FontFace(JS::Realm&, String family, FontFaceSource source, FontFaceDescriptors const& descriptors);
FontFace(JS::Realm&, JS::NonnullGCPtr<WebIDL::Promise> font_status_promise, Vector<ParsedFontFace::Source> urls, ByteBuffer data, String family, FontFaceDescriptors const& descriptors);
virtual void initialize(JS::Realm&) override;
virtual void visit_edges(Visitor&) override;
// FIXME: Should we be storing StyleValues instead?
String m_family;
@ -86,6 +94,16 @@ private:
String m_descent_override;
String m_line_gap_override;
// https://drafts.csswg.org/css-font-loading/#dom-fontface-status
Bindings::FontFaceLoadStatus m_status { Bindings::FontFaceLoadStatus::Unloaded };
JS::NonnullGCPtr<WebIDL::Promise> m_font_status_promise; // [[FontStatusPromise]]
Vector<ParsedFontFace::Source> m_urls; // [[Urls]]
ByteBuffer m_binary_data; // [[Data]]
RefPtr<Gfx::VectorFont> m_parsed_font;
RefPtr<Core::Promise<NonnullRefPtr<Gfx::VectorFont>>> m_font_load_promise;
// https://drafts.csswg.org/css-font-loading/#css-connected
bool m_is_css_connected { false };
};