third_party/WebKit/Source/web/WebRange.cpp

   1 /*
   2  * Copyright (C) 2009 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 are
   6  * met:
   7  *
   8  *     * Redistributions of source code must retain the above copyright
   9  * notice, this list of conditions and the following disclaimer.
  10  *     * Redistributions in binary form must reproduce the above
  11  * copyright notice, this list of conditions and the following disclaimer
  12  * in the documentation and/or other materials provided with the
  13  * distribution.
  14  *     * Neither the name of Google Inc. nor the names of its
  15  * contributors may be used to endorse or promote products derived from
  16  * this software without specific prior written permission.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  29  */
  30
  31 #include "config.h"
  32 #include "public/web/WebRange.h"
  33
  34 #include "bindings/core/v8/ExceptionState.h"
  35 #include "bindings/core/v8/ExceptionStatePlaceholder.h"
  36 #include "core/dom/Document.h"
  37 #include "core/dom/Element.h"
  38 #include "core/dom/Range.h"
  39 #include "core/dom/shadow/ShadowRoot.h"
  40 #include "core/editing/FrameSelection.h"
  41 #include "core/editing/PlainTextRange.h"
  42 #include "core/frame/FrameView.h"
  43 #include "core/frame/LocalFrame.h"
  44 #include "public/platform/WebString.h"
  45 #include "public/web/WebExceptionCode.h"
  46 #include "public/web/WebNode.h"
  47 #include "web/WebLocalFrameImpl.h"
  48 #include "wtf/PassRefPtr.h"
  49
  50 namespace blink {
  51
  52 void WebRange::reset()
  53 {
  54     m_private.reset();
  55 }
  56
  57 void WebRange::assign(const WebRange& other)
  58 {
  59     m_private = other.m_private;
  60 }
  61
  62 int WebRange::startOffset() const
  63 {
  64     return m_private->startOffset();
  65 }
  66
  67 int WebRange::endOffset() const
  68 {
  69     return m_private->endOffset();
  70 }
  71
  72 WebString WebRange::toPlainText() const
  73 {
  74     return m_private->text();
  75 }
  76
  77 // static
  78 WebRange WebRange::fromDocumentRange(WebLocalFrame* frame, int start, int length)
  79 {
  80     LocalFrame* webFrame = toWebLocalFrameImpl(frame)->frame();
  81     Element* selectionRoot = webFrame->selection().rootEditableElement();
  82     ContainerNode* scope = selectionRoot ? selectionRoot : webFrame->document()->documentElement();
  83     return createRange(PlainTextRange(start, start + length).createRange(*scope));
  84 }
  85
  86 WebRange::WebRange(const PassRefPtrWillBeRawPtr<Range>& range)
  87     : m_private(range)
  88 {
  89 }
  90
  91 WebRange::operator PassRefPtrWillBeRawPtr<Range>() const
  92 {
  93     return m_private.get();
  94 }
  95
  96 } // namespace blink