blob: 875c7eccc9b4621c6478870ef31a26d1429fddb7 [file] [log] [blame]
/*
* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
* Copyright (C) 2000 Frederik Holljen (frederik.holljen@hig.no)
* Copyright (C) 2001 Peter Kelly (pmk@post.com)
* Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
* Copyright (C) 2004, 2008 Apple Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_DOM_TREE_WALKER_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_DOM_TREE_WALKER_H_
#include "third_party/blink/renderer/core/dom/node_iterator_base.h"
#include "third_party/blink/renderer/platform/bindings/script_wrappable.h"
#include "third_party/blink/renderer/platform/heap/handle.h"
namespace blink {
class ExceptionState;
class TreeWalker final : public ScriptWrappable, public NodeIteratorBase {
DEFINE_WRAPPERTYPEINFO();
USING_GARBAGE_COLLECTED_MIXIN(TreeWalker);
public:
static TreeWalker* Create(Node* root_node,
unsigned what_to_show,
V8NodeFilter* filter) {
return MakeGarbageCollected<TreeWalker>(root_node, what_to_show, filter);
}
TreeWalker(Node*, unsigned what_to_show, V8NodeFilter*);
Node* currentNode() const { return current_.Get(); }
void setCurrentNode(Node*);
Node* parentNode(ExceptionState&);
Node* firstChild(ExceptionState&);
Node* lastChild(ExceptionState&);
Node* previousSibling(ExceptionState&);
Node* nextSibling(ExceptionState&);
Node* previousNode(ExceptionState&);
Node* nextNode(ExceptionState&);
void Trace(Visitor*) override;
private:
Node* SetCurrent(Node*);
template <typename Strategy>
Node* TraverseSiblings(ExceptionState&);
Member<Node> current_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_CORE_DOM_TREE_WALKER_H_