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/*
* Copyright (C) 2025 Samuel Weinig <sam@webkit.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "StyleGridTemplateAreas.h"
#include "CSSGridTemplateAreasValue.h"
#include "StyleBuilderChecking.h"
#include "StyleGridTrackSizingDirection.h"
#include <algorithm>
namespace WebCore {
namespace Style {
static GridNamedLinesMap initializeImplicitNamedGridLines(const GridNamedAreaMap& namedGridAreas, GridTrackSizingDirection direction)
{
GridNamedLinesMap namedGridLines;
for (auto& area : namedGridAreas.map) {
auto areaSpan = direction == GridTrackSizingDirection::Rows ? area.value.rows : area.value.columns;
{
auto& startVector = namedGridLines.map.add(makeString(area.key, "-start"_s), Vector<unsigned>()).iterator->value;
startVector.append(areaSpan.startLine());
std::ranges::sort(startVector);
}
{
auto& endVector = namedGridLines.map.add(makeString(area.key, "-end"_s), Vector<unsigned>()).iterator->value;
endVector.append(areaSpan.endLine());
std::ranges::sort(endVector);
}
}
// FIXME: For acceptable performance, should sort once at the end, not as we add each item, or at least insert in sorted order instead of using std::sort each time.
return namedGridLines;
}
GridTemplateAreas::GridTemplateAreas(GridNamedAreaMap&& map)
: map { WTFMove(map) }
, implicitNamedGridColumnLines { initializeImplicitNamedGridLines(map, GridTrackSizingDirection::Columns) }
, implicitNamedGridRowLines { initializeImplicitNamedGridLines(map, GridTrackSizingDirection::Rows) }
{
}
GridTemplateAreas::GridTemplateAreas(const GridNamedAreaMap& map)
: map { map }
, implicitNamedGridColumnLines { initializeImplicitNamedGridLines(map, GridTrackSizingDirection::Columns) }
, implicitNamedGridRowLines { initializeImplicitNamedGridLines(map, GridTrackSizingDirection::Rows) }
{
}
// MARK: - Conversion
auto CSSValueConversion<GridTemplateAreas>::operator()(BuilderState& state, const CSSValue& value) -> GridTemplateAreas
{
if (isValueID(value, CSSValueNone))
return CSS::Keyword::None { };
RefPtr gridTemplateAreasValue = requiredDowncast<CSSGridTemplateAreasValue>(state, value);
if (!gridTemplateAreasValue)
return CSS::Keyword::None { };
return GridTemplateAreas { gridTemplateAreasValue->areas().map };
}
auto CSSValueCreation<GridTemplateAreas>::operator()(CSSValuePool& pool, const RenderStyle& style, const GridTemplateAreas& value) -> Ref<CSSValue>
{
return WTF::switchOn(value,
[&](const CSS::Keyword::None& keyword) -> Ref<CSSValue> {
return createCSSValue(pool, style, keyword);
},
[&](const GridNamedAreaMap& map) -> Ref<CSSValue> {
return CSSGridTemplateAreasValue::create(CSS::GridTemplateAreas { map });
}
);
}
// MARK: - Serialization
void Serialize<GridTemplateAreas>::operator()(StringBuilder& builder, const CSS::SerializationContext& context, const RenderStyle& style, const GridTemplateAreas& value)
{
WTF::switchOn(value,
[&](const CSS::Keyword::None& keyword) {
serializationForCSS(builder, context, style, keyword);
},
[&](const GridNamedAreaMap& map) {
serializationForCSS(builder, context, style, map);
}
);
}
} // namespace Style
} // namespace WebCore
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