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LibWeb: Set blur filter radius to 0px if omitted

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Tim Ledbetter 2025-04-04 12:05:07 +01:00 • committed by Sam Atkins
parent 2ee86d1e18
commit e5f21b2f9c
Notes: github-actions[bot] 2025-04-04 16:13:53 +00:00
3 changed files with 6 additions and 12 deletions
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10
Libraries/LibWeb/CSS/StyleValues/FilterValueListStyleValue.cpp
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@ -15,11 +15,7 @@ namespace Web::CSS {
float FilterOperation::Blur::resolved_radius(Layout::Node const& node) const
{
if (radius.has_value())
return radius->resolved({ .length_resolution_context = Length::ResolutionContext::for_layout_node(node) })->to_px(node).to_float();
// Default value when omitted is 0px.
return 0;
return radius.resolved({ .length_resolution_context = Length::ResolutionContext::for_layout_node(node) })->to_px(node).to_float();
}
float FilterOperation::HueRotate::angle_degrees(Layout::Node const& node) const
@ -56,9 +52,7 @@ String FilterValueListStyleValue::to_string(SerializationMode) const
builder.append(' ');
filter_function.visit(
[&](FilterOperation::Blur const& blur) {
builder.append("blur("sv);
if (blur.radius.has_value())
builder.append(blur.radius->to_string());
builder.appendff("blur({}"sv, blur.radius.to_string());
},
[&](FilterOperation::DropShadow const& drop_shadow) {
builder.appendff("drop-shadow("sv);

2
Libraries/LibWeb/CSS/StyleValues/FilterValueListStyleValue.h
View file

@ -21,7 +21,7 @@ namespace Web::CSS {
namespace FilterOperation {
struct Blur {
Optional<LengthOrCalculated> radius;
LengthOrCalculated radius { Length::make_px(0) };
float resolved_radius(Layout::Node const&) const;
bool operator==(Blur const&) const = default;
};

6
Tests/LibWeb/Text/expected/wpt-import/css/filter-effects/parsing/filter-computed.txt
View file

@ -2,11 +2,11 @@ Harness status: OK
Found 34 tests
17 Pass
17 Fail
18 Pass
16 Fail
Pass Property filter value 'none'
Pass Property filter value 'blur(100px)'
Fail Property filter value 'blur()'
Pass Property filter value 'blur()'
Pass Property filter value 'brightness(0)'
Fail Property filter value 'brightness(300%)'
Pass Property filter value 'brightness()'