mirror of
https://github.com/LadybirdBrowser/ladybird
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fd44da6829
Previously, the LibWeb bindings generator would output multiple per interface files like Prototype/Constructor/Namespace/GlobalMixin depending on the contents of that IDL file. This complicates the build system as it means that it does not know what files will be generated without knowledge of the contents of that IDL file. Instead, for each IDL file only generate a single Bindings/<IDLFile>.h and Bindings/<IDLFile>.cpp.
120 lines
7.4 KiB
C++
120 lines
7.4 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <andreas@ladybird.org>
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* Copyright (c) 2025, Tim Ledbetter <tim.ledbetter@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 <LibWeb/Bindings/HTMLHRElement.h>
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#include <LibWeb/Bindings/Intrinsics.h>
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#include <LibWeb/CSS/CascadedProperties.h>
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#include <LibWeb/CSS/ComputedProperties.h>
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#include <LibWeb/CSS/StyleValues/ColorStyleValue.h>
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#include <LibWeb/CSS/StyleValues/KeywordStyleValue.h>
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#include <LibWeb/CSS/StyleValues/LengthStyleValue.h>
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#include <LibWeb/HTML/HTMLHRElement.h>
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#include <LibWeb/HTML/Numbers.h>
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#include <LibWeb/HTML/Parser/HTMLParser.h>
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namespace Web::HTML {
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GC_DEFINE_ALLOCATOR(HTMLHRElement);
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HTMLHRElement::HTMLHRElement(DOM::Document& document, DOM::QualifiedName qualified_name)
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: HTMLElement(document, move(qualified_name))
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{
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}
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HTMLHRElement::~HTMLHRElement() = default;
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void HTMLHRElement::initialize(JS::Realm& realm)
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{
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WEB_SET_PROTOTYPE_FOR_INTERFACE(HTMLHRElement);
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Base::initialize(realm);
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}
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bool HTMLHRElement::is_presentational_hint(FlyString const& name) const
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{
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if (Base::is_presentational_hint(name))
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return true;
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return first_is_one_of(name, HTML::AttributeNames::align, HTML::AttributeNames::color, HTML::AttributeNames::noshade, HTML::AttributeNames::width, HTML::AttributeNames::size);
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}
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void HTMLHRElement::apply_presentational_hints(GC::Ref<CSS::CascadedProperties> cascaded_properties) const
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{
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Base::apply_presentational_hints(cascaded_properties);
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for_each_attribute([&](auto& name, auto& value) {
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// https://html.spec.whatwg.org/multipage/rendering.html#the-hr-element-2
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if (name == HTML::AttributeNames::color || name == HTML::AttributeNames::noshade) {
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cascaded_properties->set_property_from_presentational_hint(CSS::PropertyID::BorderTopStyle, CSS::KeywordStyleValue::create(CSS::Keyword::Solid));
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cascaded_properties->set_property_from_presentational_hint(CSS::PropertyID::BorderRightStyle, CSS::KeywordStyleValue::create(CSS::Keyword::Solid));
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cascaded_properties->set_property_from_presentational_hint(CSS::PropertyID::BorderBottomStyle, CSS::KeywordStyleValue::create(CSS::Keyword::Solid));
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cascaded_properties->set_property_from_presentational_hint(CSS::PropertyID::BorderLeftStyle, CSS::KeywordStyleValue::create(CSS::Keyword::Solid));
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}
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if (name == HTML::AttributeNames::align) {
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if (value.equals_ignoring_ascii_case("left"sv)) {
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cascaded_properties->set_property_from_presentational_hint(CSS::PropertyID::MarginLeft, CSS::LengthStyleValue::create(CSS::Length::make_px(0)));
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cascaded_properties->set_property_from_presentational_hint(CSS::PropertyID::MarginRight, CSS::KeywordStyleValue::create(CSS::Keyword::Auto));
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} else if (value.equals_ignoring_ascii_case("right"sv)) {
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cascaded_properties->set_property_from_presentational_hint(CSS::PropertyID::MarginLeft, CSS::KeywordStyleValue::create(CSS::Keyword::Auto));
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cascaded_properties->set_property_from_presentational_hint(CSS::PropertyID::MarginRight, CSS::LengthStyleValue::create(CSS::Length::make_px(0)));
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} else if (value.equals_ignoring_ascii_case("center"sv)) {
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cascaded_properties->set_property_from_presentational_hint(CSS::PropertyID::MarginLeft, CSS::KeywordStyleValue::create(CSS::Keyword::Auto));
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cascaded_properties->set_property_from_presentational_hint(CSS::PropertyID::MarginRight, CSS::KeywordStyleValue::create(CSS::Keyword::Auto));
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}
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}
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// https://html.spec.whatwg.org/multipage/rendering.html#the-hr-element-2:attr-hr-color-3
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// When an hr element has a color attribute, its value is expected to be parsed using the rules for parsing a legacy color value, and if that does not return failure,
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// the user agent is expected to treat the attribute as a presentational hint setting the element's 'color' property to the resulting color.
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if (name == HTML::AttributeNames::color) {
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if (auto parsed_value = parse_legacy_color_value(value); parsed_value.has_value()) {
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cascaded_properties->set_property_from_presentational_hint(CSS::PropertyID::Color, CSS::ColorStyleValue::create_from_color(*parsed_value, CSS::ColorSyntax::Legacy));
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}
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}
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// If an hr element has either a color attribute or a noshade attribute, and furthermore also has a size attribute,
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// and parsing that attribute's value using the rules for parsing non-negative integers doesn't generate an error,
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// then the user agent is expected to use the parsed value divided by two as a pixel length for presentational hints
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// for the properties 'border-top-width', 'border-right-width', 'border-bottom-width', and 'border-left-width' on the element.
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bool has_color_or_noshade = has_attribute(HTML::AttributeNames::color) || has_attribute(HTML::AttributeNames::noshade);
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if (name == HTML::AttributeNames::size && has_color_or_noshade) {
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if (auto parsed_value = parse_non_negative_integer(value); parsed_value.has_value()) {
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auto size_value = CSS::LengthStyleValue::create(CSS::Length::make_px(parsed_value.value() / 2.0));
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cascaded_properties->set_property_from_presentational_hint(CSS::PropertyID::BorderTopWidth, size_value);
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cascaded_properties->set_property_from_presentational_hint(CSS::PropertyID::BorderRightWidth, size_value);
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cascaded_properties->set_property_from_presentational_hint(CSS::PropertyID::BorderBottomWidth, size_value);
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cascaded_properties->set_property_from_presentational_hint(CSS::PropertyID::BorderLeftWidth, size_value);
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}
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} else if (name == HTML::AttributeNames::size && !has_color_or_noshade) {
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// Otherwise, if an hr element has neither a color attribute nor a noshade attribute, but does have a size attribute,
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// and parsing that attribute's value using the rules for parsing non-negative integers doesn't generate an error,
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// then: if the parsed value is one, then the user agent is expected to use the attribute as a presentational hint
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// setting the element's 'border-bottom-width' to 0; otherwise, if the parsed value is greater than one,
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// then the user agent is expected to use the parsed value minus two as a pixel length for presentational hints
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// for the 'height' property on the element.
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if (auto parsed_value = parse_non_negative_integer(value); parsed_value.has_value()) {
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if (parsed_value.value() == 1) {
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cascaded_properties->set_property_from_presentational_hint(CSS::PropertyID::BorderBottomWidth,
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CSS::LengthStyleValue::create(CSS::Length::make_px(0)));
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} else if (parsed_value.value() > 1) {
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cascaded_properties->set_property_from_presentational_hint(CSS::PropertyID::Height,
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CSS::LengthStyleValue::create(CSS::Length::make_px(parsed_value.value() - 2)));
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}
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}
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}
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// https://html.spec.whatwg.org/multipage/rendering.html#the-hr-element-2:maps-to-the-dimension-property
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if (name == HTML::AttributeNames::width) {
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if (auto parsed_value = parse_dimension_value(value)) {
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cascaded_properties->set_property_from_presentational_hint(CSS::PropertyID::Width, *parsed_value);
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}
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}
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});
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}
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}
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