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LibWeb/CSS: Implement 'background-blend-mode'

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This implements the 'background-blend-mode' CSS property.
This commit is contained in:
Glenn Skrzypczak 2025-03-20 15:36:36 +01:00 • committed by Sam Atkins
commit a73cd88f0c
Notes: github-actions[bot] 2025-03-28 09:42:07 +00:00
27 changed files with 303 additions and 199 deletions
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3
Libraries/LibWeb/Layout/Node.cpp
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@ -397,6 +397,7 @@ void NodeWithStyle::apply_style(CSS::ComputedProperties const& computed_style)
auto const& y_positions = computed_style.property(CSS::PropertyID::BackgroundPositionY);
auto const& repeats = computed_style.property(CSS::PropertyID::BackgroundRepeat);
auto const& sizes = computed_style.property(CSS::PropertyID::BackgroundSize);
auto const& background_blend_modes = computed_style.property(CSS::PropertyID::BackgroundBlendMode);
auto count_layers = [](auto const& maybe_style_value) -> size_t {
if (maybe_style_value.is_value_list())
@ -510,6 +511,8 @@ void NodeWithStyle::apply_style(CSS::ComputedProperties const& computed_style)
layer.repeat_y = repeat_value->as_background_repeat().repeat_y();
}
layer.blend_mode = CSS::keyword_to_mix_blend_mode(value_for_layer(background_blend_modes, layer_index)->to_keyword()).value_or(CSS::MixBlendMode::Normal);
layers.append(move(layer));
}