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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 #ifndef WebRange_h
32 #define WebRange_h
33 
34 #include "WebCommon.h"
35 
36 #if WEBKIT_IMPLEMENTATION
37 namespace WebCore { class Range; }
38 namespace WTF { template <typename T> class PassRefPtr; }
39 #endif
40 namespace WebCore { class Node; }
41 
42 namespace WebKit {
43 
44 class WebRangePrivate;
45 class WebString;
46 
47 // Provides readonly access to some properties of a DOM range.
48 class WebRange {
49 public:
~WebRange()50     ~WebRange() { reset(); }
51 
WebRange()52     WebRange() : m_private(0) { }
WebRange(const WebRange & r)53     WebRange(const WebRange& r) : m_private(0) { assign(r); }
54     WebRange& operator=(const WebRange& r)
55     {
56         assign(r);
57         return *this;
58     }
59 
60     WEBKIT_API void reset();
61     WEBKIT_API void assign(const WebRange&);
62 
isNull()63     bool isNull() const { return !m_private; }
64 
65     WEBKIT_API int startOffset() const;
66     WEBKIT_API int endOffset() const;
67     WEBKIT_API WebCore::Node* startContainer(int& exceptionCode) const;
68     WEBKIT_API WebCore::Node* endContainer(int& exceptionCode) const;
69 
70     WEBKIT_API WebString toHTMLText() const;
71     WEBKIT_API WebString toPlainText() const;
72 
73 #if WEBKIT_IMPLEMENTATION
74     WebRange(const WTF::PassRefPtr<WebCore::Range>&);
75     WebRange& operator=(const WTF::PassRefPtr<WebCore::Range>&);
76     operator WTF::PassRefPtr<WebCore::Range>() const;
77 #endif
78 
79 private:
80     void assign(WebRangePrivate*);
81     WebRangePrivate* m_private;
82 };
83 
84 } // namespace WebKit
85 
86 #endif
87