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LibWeb: Propagate errors from absolutizing StyleValues

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This commit is contained in:
Sam Atkins 2023-05-01 20:09:05 +01:00 • committed by Andreas Kling
parent d16600a48b
commit d732a83de8
10 changed files with 20 additions and 20 deletions
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16
Userland/Libraries/LibWeb/CSS/StyleComputer.cpp
View file

@ -1393,7 +1393,7 @@ CSSPixels StyleComputer::parent_or_root_element_line_height(DOM::Element const*
return computed_values->line_height(viewport_rect(), parent_font_metrics, root_font_metrics);
}
void StyleComputer::absolutize_values(StyleProperties& style, DOM::Element const* element, Optional<CSS::Selector::PseudoElement> pseudo_element) const
ErrorOr<void> StyleComputer::absolutize_values(StyleProperties& style, DOM::Element const* element, Optional<CSS::Selector::PseudoElement> pseudo_element) const
{
auto parent_or_root_line_height = parent_or_root_element_line_height(element, pseudo_element);
@ -1411,9 +1411,8 @@ void StyleComputer::absolutize_values(StyleProperties& style, DOM::Element const
// because most percentages are relative to containing block metrics.
auto& line_height_value_slot = style.m_property_values[to_underlying(CSS::PropertyID::LineHeight)];
if (line_height_value_slot && line_height_value_slot->is_percentage()) {
line_height_value_slot = LengthStyleValue::create(
Length::make_px(font_size * line_height_value_slot->as_percentage().percentage().as_fraction()))
.release_value_but_fixme_should_propagate_errors();
line_height_value_slot = TRY(LengthStyleValue::create(
Length::make_px(font_size * line_height_value_slot->as_percentage().percentage().as_fraction())));
}
auto line_height = style.line_height(viewport_rect(), font_metrics, root_font_metrics);
@ -1421,14 +1420,15 @@ void StyleComputer::absolutize_values(StyleProperties& style, DOM::Element const
// NOTE: line-height might be using lh which should be resolved against the parent line height (like we did here already)
if (line_height_value_slot && line_height_value_slot->is_length())
line_height_value_slot = LengthStyleValue::create(Length::make_px(line_height)).release_value_but_fixme_should_propagate_errors();
line_height_value_slot = TRY(LengthStyleValue::create(Length::make_px(line_height)));
for (size_t i = 0; i < style.m_property_values.size(); ++i) {
auto& value_slot = style.m_property_values[i];
if (!value_slot)
continue;
value_slot = value_slot->absolutized(viewport_rect(), font_metrics, root_font_metrics);
value_slot = TRY(value_slot->absolutized(viewport_rect(), font_metrics, root_font_metrics));
}
return {};
}
enum class BoxTypeTransformation {
@ -1528,7 +1528,7 @@ NonnullRefPtr<StyleProperties> StyleComputer::create_document_style() const
auto style = StyleProperties::create();
compute_font(style, nullptr, {});
compute_defaulted_values(style, nullptr, {});
absolutize_values(style, nullptr, {});
absolutize_values(style, nullptr, {}).release_value_but_fixme_should_propagate_errors();
style->set_property(CSS::PropertyID::Width, CSS::LengthStyleValue::create(CSS::Length::make_px(viewport_rect().width())).release_value_but_fixme_should_propagate_errors());
style->set_property(CSS::PropertyID::Height, CSS::LengthStyleValue::create(CSS::Length::make_px(viewport_rect().height())).release_value_but_fixme_should_propagate_errors());
style->set_property(CSS::PropertyID::Display, CSS::DisplayStyleValue::create(CSS::Display::from_short(CSS::Display::Short::Block)).release_value_but_fixme_should_propagate_errors());
@ -1562,7 +1562,7 @@ ErrorOr<RefPtr<StyleProperties>> StyleComputer::compute_style_impl(DOM::Element&
compute_font(style, &element, pseudo_element);
// 3. Absolutize values, turning font/viewport relative lengths into absolute lengths
absolutize_values(style, &element, pseudo_element);
TRY(absolutize_values(style, &element, pseudo_element));
// 4. Default the values, applying inheritance and 'initial' as needed
compute_defaulted_values(style, &element, pseudo_element);

2
Userland/Libraries/LibWeb/CSS/StyleComputer.h
View file

@ -89,7 +89,7 @@ private:
ErrorOr<void> compute_cascaded_values(StyleProperties&, DOM::Element&, Optional<CSS::Selector::PseudoElement>, bool& did_match_any_pseudo_element_rules, ComputeStyleMode) const;
void compute_font(StyleProperties&, DOM::Element const*, Optional<CSS::Selector::PseudoElement>) const;
void compute_defaulted_values(StyleProperties&, DOM::Element const*, Optional<CSS::Selector::PseudoElement>) const;
void absolutize_values(StyleProperties&, DOM::Element const*, Optional<CSS::Selector::PseudoElement>) const;
ErrorOr<void> absolutize_values(StyleProperties&, DOM::Element const*, Optional<CSS::Selector::PseudoElement>) const;
void transform_box_type_if_needed(StyleProperties&, DOM::Element const&, Optional<CSS::Selector::PseudoElement>) const;
void compute_defaulted_property_value(StyleProperties&, DOM::Element const*, CSS::PropertyID, Optional<CSS::Selector::PseudoElement>) const;

2
Userland/Libraries/LibWeb/CSS/StyleValue.cpp
View file

@ -352,7 +352,7 @@ StyleValueList const& StyleValue::as_value_list() const
return static_cast<StyleValueList const&>(*this);
}
ValueComparingNonnullRefPtr<StyleValue const> StyleValue::absolutized(CSSPixelRect const&, Length::FontMetrics const&, Length::FontMetrics const&) const
ErrorOr<ValueComparingNonnullRefPtr<StyleValue const>> StyleValue::absolutized(CSSPixelRect const&, Length::FontMetrics const&, Length::FontMetrics const&) const
{
return *this;
}

2
Userland/Libraries/LibWeb/CSS/StyleValue.h
View file

@ -295,7 +295,7 @@ public:
virtual bool has_number() const { return false; }
virtual bool has_integer() const { return false; }
virtual ValueComparingNonnullRefPtr<StyleValue const> absolutized(CSSPixelRect const& viewport_rect, Length::FontMetrics const& font_metrics, Length::FontMetrics const& root_font_metrics) const;
virtual ErrorOr<ValueComparingNonnullRefPtr<StyleValue const>> absolutized(CSSPixelRect const& viewport_rect, Length::FontMetrics const& font_metrics, Length::FontMetrics const& root_font_metrics) const;
virtual Color to_color(Optional<Layout::NodeWithStyle const&>) const { return {}; }
ValueID to_identifier() const;

4
Userland/Libraries/LibWeb/CSS/StyleValues/BorderRadiusStyleValue.cpp
View file

@ -18,7 +18,7 @@ ErrorOr<String> BorderRadiusStyleValue::to_string() const
return String::formatted("{} / {}", TRY(m_properties.horizontal_radius.to_string()), TRY(m_properties.vertical_radius.to_string()));
}
ValueComparingNonnullRefPtr<StyleValue const> BorderRadiusStyleValue::absolutized(CSSPixelRect const& viewport_rect, Length::FontMetrics const& font_metrics, Length::FontMetrics const& root_font_metrics) const
ErrorOr<ValueComparingNonnullRefPtr<StyleValue const>> BorderRadiusStyleValue::absolutized(CSSPixelRect const& viewport_rect, Length::FontMetrics const& font_metrics, Length::FontMetrics const& root_font_metrics) const
{
if (m_properties.horizontal_radius.is_percentage() && m_properties.vertical_radius.is_percentage())
return *this;
@ -28,7 +28,7 @@ ValueComparingNonnullRefPtr<StyleValue const> BorderRadiusStyleValue::absolutize
absolutized_horizontal_radius = m_properties.horizontal_radius.length().absolutized(viewport_rect, font_metrics, root_font_metrics);
if (!m_properties.vertical_radius.is_percentage())
absolutized_vertical_radius = m_properties.vertical_radius.length().absolutized(viewport_rect, font_metrics, root_font_metrics);
return BorderRadiusStyleValue::create(absolutized_horizontal_radius, absolutized_vertical_radius).release_value_but_fixme_should_propagate_errors();
return BorderRadiusStyleValue::create(absolutized_horizontal_radius, absolutized_vertical_radius);
}
}

2
Userland/Libraries/LibWeb/CSS/StyleValues/BorderRadiusStyleValue.h
View file

@ -38,7 +38,7 @@ private:
{
}
virtual ValueComparingNonnullRefPtr<StyleValue const> absolutized(CSSPixelRect const& viewport_rect, Length::FontMetrics const& font_metrics, Length::FontMetrics const& root_font_metrics) const override;
virtual ErrorOr<ValueComparingNonnullRefPtr<StyleValue const>> absolutized(CSSPixelRect const& viewport_rect, Length::FontMetrics const& font_metrics, Length::FontMetrics const& root_font_metrics) const override;
struct Properties {
bool is_elliptical;

4
Userland/Libraries/LibWeb/CSS/StyleValues/LengthStyleValue.cpp
View file

@ -27,10 +27,10 @@ ErrorOr<ValueComparingNonnullRefPtr<LengthStyleValue>> LengthStyleValue::create(
return adopt_nonnull_ref_or_enomem(new (nothrow) LengthStyleValue(length));
}
ValueComparingNonnullRefPtr<StyleValue const> LengthStyleValue::absolutized(CSSPixelRect const& viewport_rect, Length::FontMetrics const& font_metrics, Length::FontMetrics const& root_font_metrics) const
ErrorOr<ValueComparingNonnullRefPtr<StyleValue const>> LengthStyleValue::absolutized(CSSPixelRect const& viewport_rect, Length::FontMetrics const& font_metrics, Length::FontMetrics const& root_font_metrics) const
{
if (auto length = m_length.absolutize(viewport_rect, font_metrics, root_font_metrics); length.has_value())
return LengthStyleValue::create(length.release_value()).release_value_but_fixme_should_propagate_errors();
return LengthStyleValue::create(length.release_value());
return *this;
}

2
Userland/Libraries/LibWeb/CSS/StyleValues/LengthStyleValue.h
View file

@ -23,7 +23,7 @@ public:
virtual bool has_length() const override { return true; }
virtual ErrorOr<String> to_string() const override { return m_length.to_string(); }
virtual Length to_length() const override { return m_length; }
virtual ValueComparingNonnullRefPtr<StyleValue const> absolutized(CSSPixelRect const& viewport_rect, Length::FontMetrics const& font_metrics, Length::FontMetrics const& root_font_metrics) const override;
virtual ErrorOr<ValueComparingNonnullRefPtr<StyleValue const>> absolutized(CSSPixelRect const& viewport_rect, Length::FontMetrics const& font_metrics, Length::FontMetrics const& root_font_metrics) const override;
bool properties_equal(LengthStyleValue const& other) const { return m_length == other.m_length; }

4
Userland/Libraries/LibWeb/CSS/StyleValues/ShadowStyleValue.cpp
View file

@ -20,13 +20,13 @@ ErrorOr<String> ShadowStyleValue::to_string() const
return builder.to_string();
}
ValueComparingNonnullRefPtr<StyleValue const> ShadowStyleValue::absolutized(CSSPixelRect const& viewport_rect, Length::FontMetrics const& font_metrics, Length::FontMetrics const& root_font_metrics) const
ErrorOr<ValueComparingNonnullRefPtr<StyleValue const>> ShadowStyleValue::absolutized(CSSPixelRect const& viewport_rect, Length::FontMetrics const& font_metrics, Length::FontMetrics const& root_font_metrics) const
{
auto absolutized_offset_x = m_properties.offset_x.absolutized(viewport_rect, font_metrics, root_font_metrics);
auto absolutized_offset_y = m_properties.offset_y.absolutized(viewport_rect, font_metrics, root_font_metrics);
auto absolutized_blur_radius = m_properties.blur_radius.absolutized(viewport_rect, font_metrics, root_font_metrics);
auto absolutized_spread_distance = m_properties.spread_distance.absolutized(viewport_rect, font_metrics, root_font_metrics);
return ShadowStyleValue::create(m_properties.color, absolutized_offset_x, absolutized_offset_y, absolutized_blur_radius, absolutized_spread_distance, m_properties.placement).release_value_but_fixme_should_propagate_errors();
return ShadowStyleValue::create(m_properties.color, absolutized_offset_x, absolutized_offset_y, absolutized_blur_radius, absolutized_spread_distance, m_properties.placement);
}
}

2
Userland/Libraries/LibWeb/CSS/StyleValues/ShadowStyleValue.h
View file

@ -46,7 +46,7 @@ private:
{
}
virtual ValueComparingNonnullRefPtr<StyleValue const> absolutized(CSSPixelRect const& viewport_rect, Length::FontMetrics const& font_metrics, Length::FontMetrics const& root_font_metrics) const override;
virtual ErrorOr<ValueComparingNonnullRefPtr<StyleValue const>> absolutized(CSSPixelRect const& viewport_rect, Length::FontMetrics const& font_metrics, Length::FontMetrics const& root_font_metrics) const override;
struct Properties {
Color color;