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/*
* Copyright (C) 2024 Apple Inc. All rights reserved.
*
* 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. AND ITS CONTRIBUTORS ``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 ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 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.
*/
#pragma once
#include "ScopedName.h"
#include <wtf/text/AtomString.h>
#include <wtf/text/TextStream.h>
namespace WebCore {
struct PositionTryFallback {
std::optional<Style::ScopedName> positionTryRuleName;
enum class Tactic : uint8_t {
FlipBlock,
FlipInline,
FlipStart
};
Vector<Tactic> tactics;
bool operator==(const PositionTryFallback&) const = default;
};
inline TextStream& operator<<(TextStream& ts, const PositionTryFallback& positionTryFallback)
{
auto separator = ""_s;
for (auto& tactic : positionTryFallback.tactics) {
ts << std::exchange(separator, " "_s);
switch (tactic) {
case PositionTryFallback::Tactic::FlipBlock:
ts << "flip-block";
break;
case PositionTryFallback::Tactic::FlipInline:
ts << "flip-inline";
break;
case PositionTryFallback::Tactic::FlipStart:
ts << "flip-start";
break;
}
}
return ts;
}
inline TextStream& operator<<(TextStream& ts, const Vector<PositionTryFallback>& positionTryFallbacks)
{
if (positionTryFallbacks.isEmpty()) {
ts << "none";
return ts;
}
auto separator = ""_s;
for (auto& item : positionTryFallbacks) {
ts << std::exchange(separator, ", "_s);
ts << item;
}
return ts;
}
} // namespace WebCore
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