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LibWeb: Parse and store the opacity property

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This commit is contained in:
Egor Ananyin 2021-07-23 13:18:09 +03:00 • committed by Ali Mohammad Pur
parent 495f69b76b
commit 0e6ba6e1d3
5 changed files with 23 additions and 0 deletions
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3
Userland/Libraries/LibWeb/CSS/ComputedValues.h
View file

@ -62,6 +62,7 @@ public:
FlexBasisData flex_basis() const { return m_noninherited.flex_basis; }
Optional<float> flex_grow_factor() const { return m_noninherited.flex_grow_factor; }
Optional<float> flex_shrink_factor() const { return m_noninherited.flex_shrink_factor; }
Optional<float> opacity() const { return m_noninherited.opacity; }
CSS::JustifyContent justify_content() const { return m_noninherited.justify_content; }
const CSS::Length& width() const { return m_noninherited.width; }
const CSS::Length& min_width() const { return m_noninherited.min_width; }
@ -146,6 +147,7 @@ protected:
CSS::JustifyContent justify_content { InitialValues::justify_content() };
CSS::Overflow overflow_x { InitialValues::overflow() };
CSS::Overflow overflow_y { InitialValues::overflow() };
Optional<float> opacity;
} m_noninherited;
};
@ -193,6 +195,7 @@ public:
void set_flex_basis(FlexBasisData value) { m_noninherited.flex_basis = value; }
void set_flex_grow_factor(Optional<float> value) { m_noninherited.flex_grow_factor = value; }
void set_flex_shrink_factor(Optional<float> value) { m_noninherited.flex_shrink_factor = value; }
void set_opacity(Optional<float> value) { m_noninherited.opacity = value; }
void set_justify_content(CSS::JustifyContent value) { m_noninherited.justify_content = value; }
};

4
Userland/Libraries/LibWeb/CSS/Properties.json
View file

@ -347,6 +347,10 @@
"inherited": false,
"initial": "0"
},
"opacity": {
"inherited": false,
"initial": 1
},
"overflow": {
"longhands": [
"overflow-x",

12
Userland/Libraries/LibWeb/CSS/StyleProperties.cpp
View file

@ -229,6 +229,18 @@ Optional<int> StyleProperties::z_index() const
return static_cast<int>(value.value()->to_length().raw_value());
}
Optional<float> StyleProperties::opacity() const
{
auto value = property(CSS::PropertyID::Opacity);
if (!value.has_value())
return {};
if (auto length = value.value()->to_length(); length.is_percentage())
return clamp(static_cast<float>(length.raw_value() / 100), 0.0f, 1.0f);
else
return clamp(static_cast<float>(length.raw_value()), 0.0f, 1.0f);
}
Optional<CSS::FlexDirection> StyleProperties::flex_direction() const
{
auto value = property(CSS::PropertyID::FlexDirection);

1
Userland/Libraries/LibWeb/CSS/StyleProperties.h
View file

@ -56,6 +56,7 @@ public:
Optional<CSS::FlexBasisData> flex_basis() const;
Optional<float> flex_grow_factor() const;
Optional<float> flex_shrink_factor() const;
Optional<float> opacity() const;
Optional<CSS::JustifyContent> justify_content() const;
Optional<CSS::Overflow> overflow_x() const;
Optional<CSS::Overflow> overflow_y() const;

3
Userland/Libraries/LibWeb/Layout/Node.cpp
View file

@ -327,6 +327,9 @@ void NodeWithStyle::apply_style(const CSS::StyleProperties& specified_style)
computed_values.set_background_color(specified_style.color_or_fallback(CSS::PropertyID::BackgroundColor, document(), Color::Transparent));
computed_values.set_z_index(specified_style.z_index());
computed_values.set_opacity(specified_style.opacity());
if (computed_values.opacity() == 0)
m_visible = false;
if (auto width = specified_style.property(CSS::PropertyID::Width); width.has_value())
m_has_definite_width = true;