77 lines
2.6 KiB
C++
77 lines
2.6 KiB
C++
/*
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* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
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* Copyright (C) 2000 Frederik Holljen (frederik.holljen@hig.no)
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* Copyright (C) 2001 Peter Kelly (pmk@post.com)
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* Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
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* Copyright (C) 2004, 2008, 2009, 2015 Apple Inc. All rights reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*
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*/
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#pragma once
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#include "ActiveDOMCallback.h"
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#include "CallbackResult.h"
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#include <wtf/RefCounted.h>
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namespace WebCore {
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class Node;
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class NodeFilter : public RefCounted<NodeFilter>, public ActiveDOMCallback {
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public:
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using ActiveDOMCallback::ActiveDOMCallback;
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virtual CallbackResult<unsigned short> acceptNode(Node&) = 0;
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virtual bool hasCallback() const = 0;
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/*
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* The following constants are returned by the acceptNode()
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* method:
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*/
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enum {
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FILTER_ACCEPT = 1,
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FILTER_REJECT = 2,
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FILTER_SKIP = 3
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};
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/*
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* These are the available values for the whatToShow parameter.
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* They are the same as the set of possible types for Node, and
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* their values are derived by using a bit position corresponding
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* to the value of NodeType for the equivalent node type.
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*/
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enum : unsigned long {
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SHOW_ALL = 0xFFFFFFFF,
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SHOW_ELEMENT = 0x00000001,
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SHOW_ATTRIBUTE = 0x00000002,
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SHOW_TEXT = 0x00000004,
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SHOW_CDATA_SECTION = 0x00000008,
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SHOW_ENTITY_REFERENCE = 0x00000010,
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SHOW_ENTITY = 0x00000020,
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SHOW_PROCESSING_INSTRUCTION = 0x00000040,
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SHOW_COMMENT = 0x00000080,
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SHOW_DOCUMENT = 0x00000100,
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SHOW_DOCUMENT_TYPE = 0x00000200,
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SHOW_DOCUMENT_FRAGMENT = 0x00000400,
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SHOW_NOTATION = 0x00000800
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};
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};
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} // namespace WebCore
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