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/*
* Copyright (C) 2019 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.
*/
#include "config.h"
#include "LayoutPhase.h"
#if ENABLE(LAYOUT_FORMATTING_CONTEXT)
namespace WebCore {
namespace Layout {
static Phase& phase()
{
static NeverDestroyed<Phase> phase;
return phase;
}
bool Phase::isInTreeBuilding()
{
return *phase() && (*phase()).value() == Type::TreeBuilding;
}
bool Phase::isInLayout()
{
return *phase() && (*phase()).value() == Type::Layout;
}
bool Phase::isInInvalidation()
{
return *phase() && (*phase()).value() == Type::Invalidation;
}
PhaseScope::PhaseScope(Phase::Type type)
{
// Should never nest states like calling TreeBuilding from Layout.
ASSERT(!(*phase()).hasValue());
phase().set(type);
}
PhaseScope::~PhaseScope()
{
phase().reset();
}
}
}
#endif