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88 lines
3.4 KiB
C++
88 lines
3.4 KiB
C++
/*
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* Copyright (C) 2012 Google Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef WebSurroundingText_h
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#define WebSurroundingText_h
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#include "../platform/WebPrivateOwnPtr.h"
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#include "../platform/WebString.h"
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#include "WebNode.h"
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#include "WebRange.h"
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namespace blink {
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class SurroundingText;
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class WebHitTestResult;
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class WebNode;
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class WebRange;
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struct WebPoint;
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// WebSurroundingText is a Blink API that gives access to the SurroundingText
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// API. It allows caller to know the text surrounding a point or a range.
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class WebSurroundingText {
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public:
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WebSurroundingText() { }
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~WebSurroundingText() { reset(); }
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BLINK_EXPORT bool isNull() const;
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BLINK_EXPORT void reset();
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// Initializes the object to get the surrounding text centered in the
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// position relative to a provided node.
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// The maximum length of the contents retrieved is defined by maxLength.
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BLINK_EXPORT void initialize(const WebNode&, const WebPoint&, size_t maxLength);
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// Initializes the object to get the text surrounding a given range.
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// The maximum length of the contents retrieved is defined by maxLength.
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// It does not include the text inside the range.
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BLINK_EXPORT void initialize(const WebRange&, size_t maxLength);
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// Surrounding text content retrieved.
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BLINK_EXPORT WebString textContent() const;
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// Offset in the text content of the initial hit position (or provided
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// offset in the node).
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// This should only be called when WebSurroundingText has been initialized
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// with a WebPoint.
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// DEPRECATED: use startOffsetInTextContent() or endOffsetInTextContent().
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BLINK_EXPORT size_t hitOffsetInTextContent() const;
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// Start offset of the initial text in the text content.
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BLINK_EXPORT size_t startOffsetInTextContent() const;
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// End offset of the initial text in the text content.
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BLINK_EXPORT size_t endOffsetInTextContent() const;
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// Convert start/end positions in the content text string into a WebKit text
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// range.
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BLINK_EXPORT WebRange rangeFromContentOffsets(size_t startOffsetInContent, size_t endOffsetInContent);
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protected:
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WebPrivateOwnPtr<SurroundingText> m_private;
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};
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} // namespace blink
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#endif
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