blob: d7283683f780877f89c7149838de284b4549100a [file] [log] [blame]
/*
* Copyright (C) 2013 Google 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:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
* OWNER OR 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 "core/layout/SubtreeLayoutScope.h"
#include "core/frame/LocalFrameView.h"
#include "core/layout/LayoutObject.h"
namespace blink {
SubtreeLayoutScope::SubtreeLayoutScope(LayoutObject& root) : root_(root) {
CHECK(root_.GetDocument().View()->IsInPerformLayout());
}
SubtreeLayoutScope::~SubtreeLayoutScope() {
CHECK(!root_.NeedsLayout());
#if DCHECK_IS_ON()
for (auto* layout_object : layout_objects_to_layout_)
layout_object->AssertLaidOut();
#endif
}
void SubtreeLayoutScope::SetNeedsLayout(
LayoutObject* descendant,
LayoutInvalidationReasonForTracing reason) {
DCHECK(descendant->IsDescendantOf(&root_));
descendant->SetNeedsLayout(reason, kMarkContainerChain, this);
}
void SubtreeLayoutScope::SetChildNeedsLayout(LayoutObject* descendant) {
DCHECK(descendant->IsDescendantOf(&root_));
descendant->SetChildNeedsLayout(kMarkContainerChain, this);
}
void SubtreeLayoutScope::RecordObjectMarkedForLayout(
LayoutObject* layout_object) {
#if DCHECK_IS_ON()
layout_objects_to_layout_.insert(layout_object);
#endif
}
} // namespace blink