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/*
* Copyright (C) 2011 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef WebDOMTextContentWalker_h
#define WebDOMTextContentWalker_h
#include "../WebPrivateOwnPtr.h"
#include "../WebRange.h"
#include "../WebString.h"
namespace WebCore {
class DOMTextContentWalker;
class Node;
}
namespace WebKit {
class WebHitTestInfo;
class WebDOMTextContentWalker {
public:
WebDOMTextContentWalker();
~WebDOMTextContentWalker();
// Creates a new text content walker centered in the position described by the hit test.
// The maximum length of the contents retrieved by the walker is defined by maxLength.
WEBKIT_API WebDOMTextContentWalker(const WebHitTestInfo&, size_t maxLength);
// Creates a new text content walker centered in the selected offset of the given text node.
// The maximum length of the contents retrieved by the walker is defined by maxLength.
WEBKIT_API WebDOMTextContentWalker(WebCore::Node* textNode, size_t offset, size_t maxLength);
// Text content retrieved by the walker.
WEBKIT_API WebString content() const;
// Position of the initial text node offset in the content string.
WEBKIT_API size_t hitOffsetInContent() const;
// Convert start/end positions in the content text string into a WebKit text range.
WEBKIT_API WebRange contentOffsetsToRange(size_t startInContent, size_t endInContent);
protected:
WebPrivateOwnPtr<WebCore::DOMTextContentWalker> m_private;
};
} // namespace WebKit
#endif
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