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LibWeb: Implement and use BackgroundRepeatStyleValue

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This wraps an x and y background-repeat value. Potentially, we could use
this in place of the background-repeat-x and background-repeat-y
pseudo-properties, but for now StyleResolver splits it into those
properties, like it did before.
This commit is contained in:
Sam Atkins 2021-08-10 10:21:42 +01:00 • committed by Andreas Kling
parent e6c0cb5a7f
commit 6f9263de04
4 changed files with 114 additions and 45 deletions
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51
Userland/Libraries/LibWeb/CSS/StyleResolver.cpp
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@ -427,41 +427,30 @@ static void set_property_expanding_shorthands(StyleProperties& style, CSS::Prope
}
if (property_id == CSS::PropertyID::BackgroundRepeat) {
auto assign_background_repeat_from_single_value = [&](StyleValue const& value) {
auto value_id = value.to_identifier();
if (value_id == ValueID::RepeatX || value_id == ValueID::RepeatY) {
auto repeat_x = IdentifierStyleValue::create(value_id == ValueID::RepeatX ? ValueID::Repeat : ValueID::NoRepeat);
auto repeat_y = IdentifierStyleValue::create(value_id == ValueID::RepeatX ? ValueID::NoRepeat : ValueID::Repeat);
set_property_expanding_shorthands(style, PropertyID::BackgroundRepeatX, repeat_x, document, true);
set_property_expanding_shorthands(style, PropertyID::BackgroundRepeatY, repeat_y, document, true);
} else {
set_property_expanding_shorthands(style, PropertyID::BackgroundRepeatX, value, document, true);
set_property_expanding_shorthands(style, PropertyID::BackgroundRepeatY, value, document, true);
}
};
if (value.is_component_value_list()) {
auto parts = static_cast<CSS::ValueListStyleValue const&>(value).values();
NonnullRefPtrVector<StyleValue> repeat_values;
for (auto& part : parts) {
if (part.is(Token::Type::Comma)) {
// FIXME: Handle multiple backgrounds.
break;
if (value.is_value_list()) {
auto& background_repeat_list = static_cast<CSS::StyleValueList const&>(value).values();
// FIXME: Handle multiple backgrounds.
if (!background_repeat_list.is_empty()) {
auto& maybe_background_repeat = background_repeat_list.first();
if (maybe_background_repeat.is_background_repeat()) {
auto& background_repeat = static_cast<BackgroundRepeatStyleValue const&>(maybe_background_repeat);
set_property_expanding_shorthands(style, PropertyID::BackgroundRepeatX, background_repeat.repeat_x(), document, true);
set_property_expanding_shorthands(style, PropertyID::BackgroundRepeatY, background_repeat.repeat_y(), document, true);
}
auto parsed_value = Parser::parse_css_value(context, property_id, part);
if (parsed_value)
repeat_values.append(parsed_value.release_nonnull());
}
if (repeat_values.size() == 1) {
assign_background_repeat_from_single_value(repeat_values[0]);
} else if (repeat_values.size() == 2) {
set_property_expanding_shorthands(style, PropertyID::BackgroundRepeatX, repeat_values[0], document, true);
set_property_expanding_shorthands(style, PropertyID::BackgroundRepeatY, repeat_values[1], document, true);
}
return;
}
assign_background_repeat_from_single_value(value);
if (value.is_background_repeat()) {
auto& background_repeat = static_cast<BackgroundRepeatStyleValue const&>(value);
set_property_expanding_shorthands(style, PropertyID::BackgroundRepeatX, background_repeat.repeat_x(), document, true);
set_property_expanding_shorthands(style, PropertyID::BackgroundRepeatY, background_repeat.repeat_y(), document, true);
return;
}
if (value.is_builtin()) {
set_property_expanding_shorthands(style, PropertyID::BackgroundRepeatX, value, document, true);
set_property_expanding_shorthands(style, PropertyID::BackgroundRepeatY, value, document, true);
return;
}
return;
}