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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "third_party/blink/renderer/core/frame/layout_subtree_root_list.h"
#include "third_party/blink/renderer/core/layout/layout_object.h"
namespace blink {
void LayoutSubtreeRootList::ClearAndMarkContainingBlocksForLayout() {
for (auto* const iter : Unordered())
iter->MarkContainerChainForLayout(false);
Clear();
}
LayoutObject* LayoutSubtreeRootList::RandomRoot() {
DCHECK(!IsEmpty());
return *Unordered().begin();
}
void LayoutSubtreeRootList::CountObjectsNeedingLayoutInRoot(
const LayoutObject* object,
unsigned& needs_layout_objects,
unsigned& total_objects) {
for (const LayoutObject* o = object; o; o = o->NextInPreOrder(object)) {
++total_objects;
if (o->NeedsLayout())
++needs_layout_objects;
}
}
void LayoutSubtreeRootList::CountObjectsNeedingLayout(
unsigned& needs_layout_objects,
unsigned& total_objects) {
// TODO(leviw): This will double-count nested roots crbug.com/509141
for (auto* const root : Unordered())
CountObjectsNeedingLayoutInRoot(root, needs_layout_objects, total_objects);
}
} // namespace blink
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