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https://github.com/RGBCube/serenity
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LibWeb: Remove CalculatedStyleValue from Angle
...and replace it with AngleOrCalculated. This has the nice bonus effect of actually handling `calc()` for angles in a transform function. :^) (Previously we just would have asserted.)
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6 changed files with 9 additions and 37 deletions
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@ -1,12 +1,12 @@
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/*
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* Copyright (c) 2022, Sam Atkins <atkinssj@serenityos.org>
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* Copyright (c) 2022-2023, Sam Atkins <atkinssj@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include "Angle.h"
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#include <AK/Math.h>
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#include <LibWeb/CSS/StyleValue.h>
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#include <LibWeb/CSS/Percentage.h>
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namespace Web::CSS {
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@ -22,13 +22,6 @@ Angle::Angle(float value, Type type)
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{
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}
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Angle Angle::make_calculated(NonnullRefPtr<CalculatedStyleValue> calculated_style_value)
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{
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Angle angle { 0, Type::Calculated };
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angle.m_calculated_style = move(calculated_style_value);
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return angle;
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}
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Angle Angle::make_degrees(float value)
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{
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return { value, Type::Deg };
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@ -36,23 +29,17 @@ Angle Angle::make_degrees(float value)
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Angle Angle::percentage_of(Percentage const& percentage) const
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{
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VERIFY(!is_calculated());
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return Angle { percentage.as_fraction() * m_value, m_type };
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}
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ErrorOr<String> Angle::to_string() const
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{
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if (is_calculated())
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return m_calculated_style->to_string();
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return String::formatted("{}{}", m_value, unit_name());
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}
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float Angle::to_degrees() const
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{
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switch (m_type) {
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case Type::Calculated:
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return m_calculated_style->resolve_angle()->to_degrees();
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case Type::Deg:
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return m_value;
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case Type::Grad:
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@ -68,8 +55,6 @@ float Angle::to_degrees() const
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StringView Angle::unit_name() const
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{
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switch (m_type) {
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case Type::Calculated:
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return "calculated"sv;
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case Type::Deg:
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return "deg"sv;
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case Type::Grad:
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@ -99,10 +84,4 @@ Optional<Angle::Type> Angle::unit_from_name(StringView name)
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return {};
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}
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NonnullRefPtr<CalculatedStyleValue> Angle::calculated_style_value() const
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{
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VERIFY(!m_calculated_style.is_null());
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return *m_calculated_style;
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}
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}
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@ -1,12 +1,11 @@
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/*
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* Copyright (c) 2022, Sam Atkins <atkinssj@serenityos.org>
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* Copyright (c) 2022-2023, Sam Atkins <atkinssj@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/RefPtr.h>
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#include <AK/String.h>
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#include <LibWeb/Forward.h>
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@ -15,7 +14,6 @@ namespace Web::CSS {
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class Angle {
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public:
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enum class Type {
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Calculated,
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Deg,
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Grad,
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Rad,
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@ -26,20 +24,14 @@ public:
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Angle(int value, Type type);
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Angle(float value, Type type);
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static Angle make_calculated(NonnullRefPtr<CalculatedStyleValue>);
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static Angle make_degrees(float);
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Angle percentage_of(Percentage const&) const;
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bool is_calculated() const { return m_type == Type::Calculated; }
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NonnullRefPtr<CalculatedStyleValue> calculated_style_value() const;
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ErrorOr<String> to_string() const;
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float to_degrees() const;
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bool operator==(Angle const& other) const
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{
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if (is_calculated())
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return m_calculated_style == other.m_calculated_style;
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return m_type == other.m_type && m_value == other.m_value;
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}
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@ -48,7 +40,6 @@ private:
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Type m_type;
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float m_value { 0 };
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RefPtr<CalculatedStyleValue> m_calculated_style;
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};
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}
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@ -105,7 +105,7 @@ public:
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float width { 0 };
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};
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using TransformValue = Variant<CSS::Angle, CSS::LengthPercentage, float>;
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using TransformValue = Variant<CSS::AngleOrCalculated, CSS::LengthPercentage, float>;
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struct Transformation {
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CSS::TransformFunction function;
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@ -20,6 +20,7 @@
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#include <LibWeb/CSS/CSSStyleRule.h>
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#include <LibWeb/CSS/CSSStyleSheet.h>
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#include <LibWeb/CSS/CSSSupportsRule.h>
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#include <LibWeb/CSS/CalculatedOr.h>
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#include <LibWeb/CSS/MediaList.h>
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#include <LibWeb/CSS/Parser/Block.h>
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#include <LibWeb/CSS/Parser/ComponentValue.h>
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@ -5780,7 +5781,7 @@ RefPtr<StyleValue> Parser::parse_transform_value(Vector<ComponentValue> const& c
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case TransformFunctionParameterType::Angle: {
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// These are `<angle> | <zero>` in the spec, so we have to check for both kinds.
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if (maybe_calc_value && maybe_calc_value->resolves_to_angle()) {
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values.append(AngleStyleValue::create(Angle::make_calculated(maybe_calc_value.release_nonnull())));
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values.append(maybe_calc_value.release_nonnull());
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} else if (value.is(Token::Type::Number) && value.token().number_value() == 0) {
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values.append(AngleStyleValue::create(Angle::make_degrees(0)));
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} else {
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@ -23,6 +23,7 @@
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#include <AK/WeakPtr.h>
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#include <LibGfx/Painter.h>
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#include <LibWeb/CSS/Angle.h>
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#include <LibWeb/CSS/CalculatedOr.h>
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#include <LibWeb/CSS/Enums.h>
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#include <LibWeb/CSS/Frequency.h>
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#include <LibWeb/CSS/Length.h>
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@ -239,8 +239,8 @@ Gfx::FloatMatrix4x4 StackingContext::get_transformation_matrix(CSS::Transformati
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return value.length().to_px(m_box).value();
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},
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[](CSS::Angle const& value) {
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return value.to_degrees() * static_cast<float>(M_DEG2RAD);
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[this](CSS::AngleOrCalculated const& value) {
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return value.resolved(m_box).to_degrees() * static_cast<float>(M_DEG2RAD);
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},
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[](float value) {
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return value;
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