mirror of
https://github.com/LadybirdBrowser/ladybird.git
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a6dfc74e93
Before this change, we were going through the chain of base classes for each IDL interface object and having them set the prototype to their prototype. Instead of doing that, reorder things so that we set the right prototype immediately in Foo::initialize(), and then don't bother in all the base class overrides. This knocks off a ~1% profile item on Speedometer 3.
148 lines
6.3 KiB
C++
148 lines
6.3 KiB
C++
/*
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* Copyright (c) 2022-2025, Sam Atkins <sam@ladybird.org>
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* Copyright (c) 2022-2023, Andreas Kling <andreas@ladybird.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibGfx/Font/Font.h>
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#include <LibGfx/Font/FontStyleMapping.h>
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#include <LibWeb/Bindings/CSSFontFaceRulePrototype.h>
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#include <LibWeb/Bindings/Intrinsics.h>
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#include <LibWeb/CSS/CSSFontFaceRule.h>
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#include <LibWeb/CSS/Serialize.h>
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#include <LibWeb/WebIDL/ExceptionOr.h>
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namespace Web::CSS {
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GC_DEFINE_ALLOCATOR(CSSFontFaceRule);
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GC::Ref<CSSFontFaceRule> CSSFontFaceRule::create(JS::Realm& realm, GC::Ref<CSSFontFaceDescriptors> style)
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{
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return realm.create<CSSFontFaceRule>(realm, style);
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}
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CSSFontFaceRule::CSSFontFaceRule(JS::Realm& realm, GC::Ref<CSSFontFaceDescriptors> style)
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: CSSRule(realm, Type::FontFace)
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, m_style(style)
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{
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}
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void CSSFontFaceRule::initialize(JS::Realm& realm)
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{
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WEB_SET_PROTOTYPE_FOR_INTERFACE(CSSFontFaceRule);
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Base::initialize(realm);
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}
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bool CSSFontFaceRule::is_valid() const
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{
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// @font-face rules require a font-family and src descriptor; if either of these are missing, the @font-face rule
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// must not be considered when performing the font matching algorithm.
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// https://drafts.csswg.org/css-fonts-4/#font-face-rule
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return !m_style->descriptor(DescriptorID::FontFamily).is_null()
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&& !m_style->descriptor(DescriptorID::Src).is_null();
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}
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ParsedFontFace CSSFontFaceRule::font_face() const
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{
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return ParsedFontFace::from_descriptors(m_style);
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}
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// https://www.w3.org/TR/cssom/#ref-for-cssfontfacerule
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String CSSFontFaceRule::serialized() const
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{
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auto& descriptors = *m_style;
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StringBuilder builder;
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// The result of concatenating the following:
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// 1. The string "@font-face {", followed by a single SPACE (U+0020).
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builder.append("@font-face { "sv);
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// 2. The string "font-family:", followed by a single SPACE (U+0020).
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builder.append("font-family: "sv);
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// 3. The result of performing serialize a string on the rule’s font family name.
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builder.append(descriptors.descriptor(DescriptorID::FontFamily)->to_string(CSSStyleValue::SerializationMode::Normal));
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// 4. The string ";", i.e., SEMICOLON (U+003B).
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builder.append(';');
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// 5. If the rule’s associated source list is not empty, follow these substeps:
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if (auto sources = descriptors.descriptor(DescriptorID::Src)) {
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// 1. A single SPACE (U+0020), followed by the string "src:", followed by a single SPACE (U+0020).
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builder.append(" src: "sv);
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// 2. The result of invoking serialize a comma-separated list on performing serialize a URL or serialize a LOCAL for each source on the source list.
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builder.append(sources->to_string(CSSStyleValue::SerializationMode::Normal));
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// 3. The string ";", i.e., SEMICOLON (U+003B).
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builder.append(';');
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}
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// 6. If rule’s associated unicode-range descriptor is present, a single SPACE (U+0020), followed by the string "unicode-range:", followed by a single SPACE (U+0020), followed by the result of performing serialize a <'unicode-range'>, followed by the string ";", i.e., SEMICOLON (U+003B).
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if (auto unicode_range = descriptors.descriptor(DescriptorID::UnicodeRange)) {
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builder.append(" unicode-range: "sv);
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builder.append(unicode_range->to_string(CSSStyleValue::SerializationMode::Normal));
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builder.append(';');
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}
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// FIXME: 7. If rule’s associated font-variant descriptor is present, a single SPACE (U+0020),
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// followed by the string "font-variant:", followed by a single SPACE (U+0020),
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// followed by the result of performing serialize a <'font-variant'>,
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// followed by the string ";", i.e., SEMICOLON (U+003B).
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// 8. If rule’s associated font-feature-settings descriptor is present, a single SPACE (U+0020),
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// followed by the string "font-feature-settings:", followed by a single SPACE (U+0020),
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// followed by the result of performing serialize a <'font-feature-settings'>,
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// followed by the string ";", i.e., SEMICOLON (U+003B).
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if (auto font_feature_settings = descriptors.descriptor(DescriptorID::FontFeatureSettings)) {
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builder.append(" font-feature-settings: "sv);
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builder.append(font_feature_settings->to_string(CSSStyleValue::SerializationMode::Normal));
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builder.append(";"sv);
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}
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// 9. If rule’s associated font-stretch descriptor is present, a single SPACE (U+0020),
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// followed by the string "font-stretch:", followed by a single SPACE (U+0020),
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// followed by the result of performing serialize a <'font-stretch'>,
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// followed by the string ";", i.e., SEMICOLON (U+003B).
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// NOTE: font-stretch is now an alias for font-width, so we use that instead.
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if (auto font_width = descriptors.descriptor(DescriptorID::FontWidth)) {
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builder.append(" font-stretch: "sv);
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builder.append(font_width->to_string(CSSStyleValue::SerializationMode::Normal));
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builder.append(";"sv);
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}
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// 10. If rule’s associated font-weight descriptor is present, a single SPACE (U+0020),
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// followed by the string "font-weight:", followed by a single SPACE (U+0020),
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// followed by the result of performing serialize a <'font-weight'>,
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// followed by the string ";", i.e., SEMICOLON (U+003B).
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if (auto font_weight = descriptors.descriptor(DescriptorID::FontWeight)) {
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builder.append(" font-weight: "sv);
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builder.append(font_weight->to_string(CSSStyleValue::SerializationMode::Normal));
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builder.append(";"sv);
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}
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// 11. If rule’s associated font-style descriptor is present, a single SPACE (U+0020),
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// followed by the string "font-style:", followed by a single SPACE (U+0020),
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// followed by the result of performing serialize a <'font-style'>,
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// followed by the string ";", i.e., SEMICOLON (U+003B).
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if (auto font_style = descriptors.descriptor(DescriptorID::FontStyle)) {
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builder.append(" font-style: "sv);
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builder.append(font_style->to_string(CSSStyleValue::SerializationMode::Normal));
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builder.append(";"sv);
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}
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// 12. A single SPACE (U+0020), followed by the string "}", i.e., RIGHT CURLY BRACKET (U+007D).
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builder.append(" }"sv);
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return MUST(builder.to_string());
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}
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void CSSFontFaceRule::visit_edges(Visitor& visitor)
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{
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Base::visit_edges(visitor);
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visitor.visit(m_style);
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}
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}
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