diff options
Diffstat (limited to 'chromium/third_party/WebKit/Source/core/dom/NodeIteratorBase.cpp')
-rw-r--r-- | chromium/third_party/WebKit/Source/core/dom/NodeIteratorBase.cpp | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/chromium/third_party/WebKit/Source/core/dom/NodeIteratorBase.cpp b/chromium/third_party/WebKit/Source/core/dom/NodeIteratorBase.cpp new file mode 100644 index 00000000000..8899fc88dce --- /dev/null +++ b/chromium/third_party/WebKit/Source/core/dom/NodeIteratorBase.cpp @@ -0,0 +1,58 @@ +/* + * 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. + * + */ + +#include "config.h" +#include "core/dom/NodeIteratorBase.h" + +#include "bindings/v8/ExceptionState.h" +#include "core/dom/Node.h" +#include "core/dom/NodeFilter.h" + +namespace WebCore { + +NodeIteratorBase::NodeIteratorBase(PassRefPtrWillBeRawPtr<Node> rootNode, unsigned whatToShow, PassRefPtrWillBeRawPtr<NodeFilter> nodeFilter) + : m_root(rootNode) + , m_whatToShow(whatToShow) + , m_filter(nodeFilter) +{ +} + +short NodeIteratorBase::acceptNode(Node* node, ExceptionState& exceptionState) const +{ + // The bit twiddling here is done to map DOM node types, which are given as integers from + // 1 through 14, to whatToShow bit masks. + if (!(((1 << (node->nodeType() - 1)) & m_whatToShow))) + return NodeFilter::FILTER_SKIP; + if (!m_filter) + return NodeFilter::FILTER_ACCEPT; + return m_filter->acceptNode(node, exceptionState); +} + +void NodeIteratorBase::trace(Visitor* visitor) +{ + visitor->trace(m_root); + visitor->trace(m_filter); +} + +} // namespace WebCore |