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LibWeb: Make StyleProperties::property() always return a value
By the time that property() gets called, we've already given every single property a value, so we can just return it. This simplifies a lot of places that were manually handling a lack of value unnecessarily.
This commit is contained in:
Sam Atkins
Andreas Kling
parent
a20188cd91
commit
e941f07931
5 changed files with 110 additions and 190 deletions
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@ -35,20 +35,17 @@ void StyleProperties::set_property(CSS::PropertyID id, NonnullRefPtr<StyleValue>
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m_property_values[to_underlying(id)] = move(value);
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}
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Optional<NonnullRefPtr<StyleValue>> StyleProperties::property(CSS::PropertyID property_id) const
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NonnullRefPtr<StyleValue> StyleProperties::property(CSS::PropertyID property_id) const
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{
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auto value = m_property_values[to_underlying(property_id)];
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if (!value)
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return {};
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// By the time we call this method, all properties have values assigned.
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VERIFY(!value.is_null());
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return value.release_nonnull();
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}
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Length StyleProperties::length_or_fallback(CSS::PropertyID id, Length const& fallback) const
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{
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auto maybe_value = property(id);
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if (!maybe_value.has_value())
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return fallback;
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auto& value = maybe_value.value();
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auto value = property(id);
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if (value->is_calculated())
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return Length::make_calculated(value->as_calculated());
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@ -66,10 +63,7 @@ LengthPercentage StyleProperties::length_percentage_or_fallback(CSS::PropertyID
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Optional<LengthPercentage> StyleProperties::length_percentage(CSS::PropertyID id) const
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{
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auto maybe_value = property(id);
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if (!maybe_value.has_value())
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return {};
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auto& value = maybe_value.value();
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auto value = property(id);
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if (value->is_calculated())
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return LengthPercentage { value->as_calculated() };
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@ -96,9 +90,9 @@ LengthBox StyleProperties::length_box(CSS::PropertyID left_id, CSS::PropertyID t
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Color StyleProperties::color_or_fallback(CSS::PropertyID id, Layout::NodeWithStyle const& node, Color fallback) const
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{
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auto value = property(id);
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if (!value.has_value() || !value.value()->has_color())
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if (!value->has_color())
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return fallback;
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return value.value()->to_color(node);
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return value->to_color(node);
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}
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NonnullRefPtr<Gfx::Font> StyleProperties::font_fallback(bool monospace, bool bold)
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@ -117,26 +111,24 @@ NonnullRefPtr<Gfx::Font> StyleProperties::font_fallback(bool monospace, bool bol
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float StyleProperties::line_height(Layout::Node const& layout_node) const
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{
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if (auto maybe_line_height = property(CSS::PropertyID::LineHeight); maybe_line_height.has_value()) {
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auto line_height = maybe_line_height.release_value();
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auto line_height = property(CSS::PropertyID::LineHeight);
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if (line_height->is_identifier() && line_height->to_identifier() == ValueID::Normal)
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return layout_node.font().pixel_metrics().line_spacing();
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if (line_height->is_identifier() && line_height->to_identifier() == ValueID::Normal)
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return layout_node.font().pixel_metrics().line_spacing();
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if (line_height->is_length()) {
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auto line_height_length = line_height->to_length();
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if (!line_height_length.is_auto())
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return line_height_length.to_px(layout_node);
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}
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if (line_height->is_length()) {
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auto line_height_length = line_height->to_length();
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if (!line_height_length.is_auto())
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return line_height_length.to_px(layout_node);
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}
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if (line_height->is_numeric())
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return Length(line_height->to_number(), Length::Type::Em).to_px(layout_node);
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if (line_height->is_numeric())
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return Length(line_height->to_number(), Length::Type::Em).to_px(layout_node);
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if (line_height->is_percentage()) {
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// Percentages are relative to 1em. https://www.w3.org/TR/css-inline-3/#valdef-line-height-percentage
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auto& percentage = line_height->as_percentage().percentage();
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return Length(percentage.as_fraction(), Length::Type::Em).to_px(layout_node);
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}
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if (line_height->is_percentage()) {
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// Percentages are relative to 1em. https://www.w3.org/TR/css-inline-3/#valdef-line-height-percentage
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auto& percentage = line_height->as_percentage().percentage();
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return Length(percentage.as_fraction(), Length::Type::Em).to_px(layout_node);
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}
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return layout_node.font().pixel_metrics().line_spacing();
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@ -144,11 +136,7 @@ float StyleProperties::line_height(Layout::Node const& layout_node) const
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Optional<int> StyleProperties::z_index() const
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{
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auto maybe_value = property(CSS::PropertyID::ZIndex);
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if (!maybe_value.has_value())
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return {};
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auto& value = maybe_value.value();
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auto value = property(CSS::PropertyID::ZIndex);
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if (value->has_auto())
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return {};
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if (value->has_integer())
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@ -158,10 +146,7 @@ Optional<int> StyleProperties::z_index() const
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float StyleProperties::opacity() const
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{
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auto maybe_value = property(CSS::PropertyID::Opacity);
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if (!maybe_value.has_value())
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return 1.0f;
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auto& value = maybe_value.value();
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auto value = property(CSS::PropertyID::Opacity);
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float unclamped_opacity = 1.0f;
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@ -192,25 +177,18 @@ float StyleProperties::opacity() const
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Optional<CSS::FlexDirection> StyleProperties::flex_direction() const
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{
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auto value = property(CSS::PropertyID::FlexDirection);
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if (!value.has_value())
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return {};
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return value_id_to_flex_direction(value.value()->to_identifier());
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return value_id_to_flex_direction(value->to_identifier());
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}
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Optional<CSS::FlexWrap> StyleProperties::flex_wrap() const
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{
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auto value = property(CSS::PropertyID::FlexWrap);
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if (!value.has_value())
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return {};
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return value_id_to_flex_wrap(value.value()->to_identifier());
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return value_id_to_flex_wrap(value->to_identifier());
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}
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Optional<CSS::FlexBasisData> StyleProperties::flex_basis() const
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{
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auto maybe_value = property(CSS::PropertyID::FlexBasis);
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if (!maybe_value.has_value())
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return {};
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auto& value = maybe_value.value();
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auto value = property(CSS::PropertyID::FlexBasis);
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if (value->is_identifier() && value->to_identifier() == CSS::ValueID::Content)
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return { { CSS::FlexBasis::Content, {} } };
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@ -230,56 +208,50 @@ Optional<CSS::FlexBasisData> StyleProperties::flex_basis() const
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float StyleProperties::flex_grow() const
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{
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auto value = property(CSS::PropertyID::FlexGrow);
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if (!value.has_value() || !value.value()->has_number())
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if (!value->has_number())
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return 0;
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return value.value()->to_number();
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return value->to_number();
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}
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float StyleProperties::flex_shrink() const
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{
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auto value = property(CSS::PropertyID::FlexShrink);
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if (!value.has_value() || !value.value()->has_number())
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if (!value->has_number())
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return 1;
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return value.value()->to_number();
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return value->to_number();
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}
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int StyleProperties::order() const
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{
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auto value = property(CSS::PropertyID::Order);
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if (!value.has_value() || !value.value()->has_integer())
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if (!value->has_integer())
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return 0;
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return value.value()->to_integer();
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return value->to_integer();
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}
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Optional<CSS::ImageRendering> StyleProperties::image_rendering() const
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{
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auto value = property(CSS::PropertyID::ImageRendering);
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if (!value.has_value())
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return {};
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return value_id_to_image_rendering(value.value()->to_identifier());
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return value_id_to_image_rendering(value->to_identifier());
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}
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Optional<CSS::JustifyContent> StyleProperties::justify_content() const
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{
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auto value = property(CSS::PropertyID::JustifyContent);
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if (!value.has_value())
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return {};
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return value_id_to_justify_content(value.value()->to_identifier());
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return value_id_to_justify_content(value->to_identifier());
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}
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Vector<CSS::Transformation> StyleProperties::transformations() const
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{
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auto value = property(CSS::PropertyID::Transform);
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if (!value.has_value())
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if (value->is_identifier() && value->to_identifier() == CSS::ValueID::None)
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return {};
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if (value.value()->is_identifier() && value.value()->to_identifier() == CSS::ValueID::None)
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if (!value->is_value_list())
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return {};
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if (!value.value()->is_value_list())
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return {};
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auto& list = value.value()->as_value_list();
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auto& list = value->as_value_list();
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Vector<CSS::Transformation> transformations;
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@ -321,9 +293,9 @@ static Optional<LengthPercentage> length_percentage_for_style_value(StyleValue c
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CSS::TransformOrigin StyleProperties::transform_origin() const
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{
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auto value = property(CSS::PropertyID::TransformOrigin);
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if (!value.has_value() || !value.value()->is_value_list() || value.value()->as_value_list().size() != 2)
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if (!value->is_value_list() || value->as_value_list().size() != 2)
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return {};
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auto const& list = value.value()->as_value_list();
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auto const& list = value->as_value_list();
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auto x_value = length_percentage_for_style_value(list.values()[0]);
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auto y_value = length_percentage_for_style_value(list.values()[1]);
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if (!x_value.has_value() || !y_value.has_value()) {
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@ -335,17 +307,13 @@ CSS::TransformOrigin StyleProperties::transform_origin() const
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Optional<CSS::AlignItems> StyleProperties::align_items() const
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{
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auto value = property(CSS::PropertyID::AlignItems);
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if (!value.has_value())
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return {};
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return value_id_to_align_items(value.value()->to_identifier());
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return value_id_to_align_items(value->to_identifier());
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}
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Optional<CSS::Position> StyleProperties::position() const
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{
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auto value = property(CSS::PropertyID::Position);
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if (!value.has_value())
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return {};
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return value_id_to_position(value.value()->to_identifier());
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return value_id_to_position(value->to_identifier());
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}
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bool StyleProperties::operator==(StyleProperties const& other) const
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@ -377,66 +345,48 @@ bool StyleProperties::operator==(StyleProperties const& other) const
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Optional<CSS::TextAlign> StyleProperties::text_align() const
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{
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auto value = property(CSS::PropertyID::TextAlign);
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if (!value.has_value())
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return {};
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return value_id_to_text_align(value.value()->to_identifier());
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return value_id_to_text_align(value->to_identifier());
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}
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Optional<CSS::TextJustify> StyleProperties::text_justify() const
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{
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auto value = property(CSS::PropertyID::TextJustify);
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if (!value.has_value())
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return {};
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return value_id_to_text_justify(value.value()->to_identifier());
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return value_id_to_text_justify(value->to_identifier());
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}
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Optional<CSS::PointerEvents> StyleProperties::pointer_events() const
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{
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auto value = property(CSS::PropertyID::PointerEvents);
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if (!value.has_value())
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return {};
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return value_id_to_pointer_events(value.value()->to_identifier());
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return value_id_to_pointer_events(value->to_identifier());
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}
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Optional<CSS::WhiteSpace> StyleProperties::white_space() const
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{
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auto value = property(CSS::PropertyID::WhiteSpace);
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if (!value.has_value())
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return {};
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return value_id_to_white_space(value.value()->to_identifier());
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return value_id_to_white_space(value->to_identifier());
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}
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Optional<CSS::LineStyle> StyleProperties::line_style(CSS::PropertyID property_id) const
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{
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auto value = property(property_id);
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if (!value.has_value())
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return {};
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return value_id_to_line_style(value.value()->to_identifier());
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return value_id_to_line_style(value->to_identifier());
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}
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Optional<CSS::Float> StyleProperties::float_() const
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{
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auto value = property(CSS::PropertyID::Float);
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if (!value.has_value())
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return {};
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return value_id_to_float(value.value()->to_identifier());
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return value_id_to_float(value->to_identifier());
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}
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Optional<CSS::Clear> StyleProperties::clear() const
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{
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auto value = property(CSS::PropertyID::Clear);
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if (!value.has_value())
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return {};
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return value_id_to_clear(value.value()->to_identifier());
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return value_id_to_clear(value->to_identifier());
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}
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CSS::ContentData StyleProperties::content() const
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{
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auto maybe_value = property(CSS::PropertyID::Content);
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if (!maybe_value.has_value())
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return CSS::ContentData {};
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auto& value = maybe_value.value();
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auto value = property(CSS::PropertyID::Content);
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if (value->is_content()) {
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auto& content_style_value = value->as_content();
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@ -486,25 +436,23 @@ CSS::ContentData StyleProperties::content() const
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Optional<CSS::Cursor> StyleProperties::cursor() const
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{
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auto value = property(CSS::PropertyID::Cursor);
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if (!value.has_value())
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return {};
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return value_id_to_cursor(value.value()->to_identifier());
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return value_id_to_cursor(value->to_identifier());
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}
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Optional<CSS::Visibility> StyleProperties::visibility() const
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{
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auto value = property(CSS::PropertyID::Visibility);
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if (!value.has_value() || !value.value()->is_identifier())
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if (!value->is_identifier())
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return {};
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return value_id_to_visibility(value.value()->to_identifier());
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return value_id_to_visibility(value->to_identifier());
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}
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CSS::Display StyleProperties::display() const
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{
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auto value = property(CSS::PropertyID::Display);
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if (!value.has_value() || !value.value()->is_identifier())
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if (!value->is_identifier())
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return CSS::Display::from_short(CSS::Display::Short::Inline);
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switch (value.value()->to_identifier()) {
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switch (value->to_identifier()) {
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case CSS::ValueID::None:
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return CSS::Display::from_short(CSS::Display::Short::None);
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case CSS::ValueID::Block:
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@ -545,33 +493,25 @@ CSS::Display StyleProperties::display() const
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Optional<CSS::TextDecorationLine> StyleProperties::text_decoration_line() const
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{
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auto value = property(CSS::PropertyID::TextDecorationLine);
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if (!value.has_value())
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return {};
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return value_id_to_text_decoration_line(value.value()->to_identifier());
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return value_id_to_text_decoration_line(value->to_identifier());
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}
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Optional<CSS::TextDecorationStyle> StyleProperties::text_decoration_style() const
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{
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auto value = property(CSS::PropertyID::TextDecorationStyle);
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if (!value.has_value())
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return {};
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return value_id_to_text_decoration_style(value.value()->to_identifier());
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return value_id_to_text_decoration_style(value->to_identifier());
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}
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Optional<CSS::TextTransform> StyleProperties::text_transform() const
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{
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auto value = property(CSS::PropertyID::TextTransform);
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if (!value.has_value())
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return {};
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return value_id_to_text_transform(value.value()->to_identifier());
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return value_id_to_text_transform(value->to_identifier());
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}
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Optional<CSS::ListStyleType> StyleProperties::list_style_type() const
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{
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auto value = property(CSS::PropertyID::ListStyleType);
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if (!value.has_value())
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return {};
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return value_id_to_list_style_type(value.value()->to_identifier());
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return value_id_to_list_style_type(value->to_identifier());
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}
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Optional<CSS::Overflow> StyleProperties::overflow_x() const
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@ -587,18 +527,12 @@ Optional<CSS::Overflow> StyleProperties::overflow_y() const
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Optional<CSS::Overflow> StyleProperties::overflow(CSS::PropertyID property_id) const
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{
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auto value = property(property_id);
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if (!value.has_value())
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return {};
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return value_id_to_overflow(value.value()->to_identifier());
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return value_id_to_overflow(value->to_identifier());
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}
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Vector<ShadowData> StyleProperties::shadow(PropertyID property_id) const
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{
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auto value_or_error = property(property_id);
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if (!value_or_error.has_value())
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return {};
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auto value = value_or_error.value();
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auto value = property(property_id);
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auto make_shadow_data = [](ShadowStyleValue const& value) {
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return ShadowData { value.color(), value.offset_x(), value.offset_y(), value.blur_radius(), value.spread_distance(), value.placement() };
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@ -636,25 +570,21 @@ Vector<ShadowData> StyleProperties::text_shadow() const
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Optional<CSS::BoxSizing> StyleProperties::box_sizing() const
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{
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auto value = property(CSS::PropertyID::BoxSizing);
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if (!value.has_value())
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return {};
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return value_id_to_box_sizing(value.value()->to_identifier());
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return value_id_to_box_sizing(value->to_identifier());
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}
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Variant<CSS::VerticalAlign, CSS::LengthPercentage> StyleProperties::vertical_align() const
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{
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auto value = property(CSS::PropertyID::VerticalAlign);
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if (!value.has_value())
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VERIFY_NOT_REACHED();
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if (value.value()->is_identifier())
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return value_id_to_vertical_align(value.value()->to_identifier()).release_value();
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if (value->is_identifier())
|
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return value_id_to_vertical_align(value->to_identifier()).release_value();
|
||||
|
||||
if (value.value()->is_length())
|
||||
return CSS::LengthPercentage(value.value()->to_length());
|
||||
if (value->is_length())
|
||||
return CSS::LengthPercentage(value->to_length());
|
||||
|
||||
if (value.value()->is_percentage())
|
||||
return CSS::LengthPercentage(value.value()->as_percentage().percentage());
|
||||
if (value->is_percentage())
|
||||
return CSS::LengthPercentage(value->as_percentage().percentage());
|
||||
|
||||
VERIFY_NOT_REACHED();
|
||||
}
|
||||
|
|
@ -662,9 +592,7 @@ Variant<CSS::VerticalAlign, CSS::LengthPercentage> StyleProperties::vertical_ali
|
|||
Optional<CSS::FontVariant> StyleProperties::font_variant() const
|
||||
{
|
||||
auto value = property(CSS::PropertyID::FontVariant);
|
||||
if (!value.has_value())
|
||||
return {};
|
||||
return value_id_to_font_variant(value.value()->to_identifier());
|
||||
return value_id_to_font_variant(value->to_identifier());
|
||||
}
|
||||
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue