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      1 /*
      2  * Copyright (C) 2012 Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  * 1.  Redistributions of source code must retain the above copyright
      8  *     notice, this list of conditions and the following disclaimer.
      9  * 2.  Redistributions in binary form must reproduce the above copyright
     10  *     notice, this list of conditions and the following disclaimer in the
     11  *     documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
     14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     15  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     16  * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
     17  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     18  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     19  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
     20  * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     21  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     22  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     23  */
     24 
     25 #include "config.h"
     26 #include "public/web/WebSurroundingText.h"
     27 
     28 #include "core/dom/Element.h"
     29 #include "core/dom/Node.h"
     30 #include "core/dom/Range.h"
     31 #include "core/dom/Text.h"
     32 #include "core/editing/SurroundingText.h"
     33 #include "core/editing/VisiblePosition.h"
     34 #include "core/rendering/RenderObject.h"
     35 #include "public/platform/WebPoint.h"
     36 #include "public/web/WebHitTestResult.h"
     37 
     38 namespace blink {
     39 
     40 void WebSurroundingText::initialize(const WebNode& webNode, const WebPoint& nodePoint, size_t maxLength)
     41 {
     42     const Node* node = webNode.constUnwrap<Node>();
     43     if (!node || !node->renderer())
     44         return;
     45 
     46     m_private.reset(new SurroundingText(VisiblePosition(node->renderer()->positionForPoint(static_cast<IntPoint>(nodePoint))).deepEquivalent().parentAnchoredEquivalent(), maxLength));
     47 }
     48 
     49 void WebSurroundingText::initialize(const WebRange& webRange, size_t maxLength)
     50 {
     51     if (RefPtrWillBeRawPtr<Range> range = static_cast<PassRefPtrWillBeRawPtr<Range> >(webRange))
     52         m_private.reset(new SurroundingText(*range, maxLength));
     53 }
     54 
     55 WebString WebSurroundingText::textContent() const
     56 {
     57     return m_private->content();
     58 }
     59 
     60 size_t WebSurroundingText::hitOffsetInTextContent() const
     61 {
     62     ASSERT(m_private->startOffsetInContent() == m_private->endOffsetInContent());
     63     return m_private->startOffsetInContent();
     64 }
     65 
     66 size_t WebSurroundingText::startOffsetInTextContent() const
     67 {
     68     return m_private->startOffsetInContent();
     69 }
     70 
     71 size_t WebSurroundingText::endOffsetInTextContent() const
     72 {
     73     return m_private->endOffsetInContent();
     74 }
     75 
     76 WebRange WebSurroundingText::rangeFromContentOffsets(size_t startOffsetInContent, size_t endOffsetInContent)
     77 {
     78     return m_private->rangeFromContentOffsets(startOffsetInContent, endOffsetInContent);
     79 }
     80 
     81 bool WebSurroundingText::isNull() const
     82 {
     83     return !m_private.get();
     84 }
     85 
     86 void WebSurroundingText::reset()
     87 {
     88     m_private.reset(0);
     89 }
     90 
     91 } // namespace blink
     92