| /* |
| * 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, 2009, 2015 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. |
| * |
| */ |
| |
| #pragma once |
| |
| #include "ActiveDOMCallback.h" |
| #include "CallbackResult.h" |
| #include <wtf/RefCounted.h> |
| |
| namespace WebCore { |
| |
| class Node; |
| |
| class NodeFilter : public RefCounted<NodeFilter>, public ActiveDOMCallback { |
| public: |
| using ActiveDOMCallback::ActiveDOMCallback; |
| |
| virtual CallbackResult<unsigned short> acceptNode(Node&) = 0; |
| |
| virtual bool hasCallback() const = 0; |
| |
| /* |
| * The following constants are returned by the acceptNode() |
| * method: |
| */ |
| enum { |
| FILTER_ACCEPT = 1, |
| FILTER_REJECT = 2, |
| FILTER_SKIP = 3 |
| }; |
| |
| /* |
| * These are the available values for the whatToShow parameter. |
| * They are the same as the set of possible types for Node, and |
| * their values are derived by using a bit position corresponding |
| * to the value of NodeType for the equivalent node type. |
| */ |
| enum : unsigned long { |
| SHOW_ALL = 0xFFFFFFFF, |
| SHOW_ELEMENT = 0x00000001, |
| SHOW_ATTRIBUTE = 0x00000002, |
| SHOW_TEXT = 0x00000004, |
| SHOW_CDATA_SECTION = 0x00000008, |
| SHOW_ENTITY_REFERENCE = 0x00000010, |
| SHOW_ENTITY = 0x00000020, |
| SHOW_PROCESSING_INSTRUCTION = 0x00000040, |
| SHOW_COMMENT = 0x00000080, |
| SHOW_DOCUMENT = 0x00000100, |
| SHOW_DOCUMENT_TYPE = 0x00000200, |
| SHOW_DOCUMENT_FRAGMENT = 0x00000400, |
| SHOW_NOTATION = 0x00000800 |
| }; |
| }; |
| |
| } // namespace WebCore |