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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 #include "config.h" | |
32 #include "WebCString.h" | |
33 | |
34 #include "CString.h" | |
35 #include "TextEncoding.h" | |
36 | |
37 #include "WebString.h" | |
38 | |
39 namespace WebKit { | |
40 | |
41 class WebCStringPrivate : public WebCore::CStringBuffer { | |
42 }; | |
43 | |
44 void WebCString::reset() | |
45 { | |
46 if (m_private) { | |
47 m_private->deref(); | |
48 m_private = 0; | |
49 } | |
50 } | |
51 | |
52 void WebCString::assign(const WebCString& other) | |
53 { | |
54 assign(const_cast<WebCStringPrivate*>(other.m_private)); | |
55 } | |
56 | |
57 void WebCString::assign(const char* data, size_t length) | |
58 { | |
59 char* newData; | |
60 RefPtr<WebCore::CStringBuffer> buffer = | |
61 WebCore::CString::newUninitialized(length, newData).buffer(); | |
62 memcpy(newData, data, length); | |
63 assign(static_cast<WebCStringPrivate*>(buffer.get())); | |
64 } | |
65 | |
66 size_t WebCString::length() const | |
67 { | |
68 if (!m_private) | |
69 return 0; | |
70 // NOTE: The buffer's length includes the null byte. | |
71 return const_cast<WebCStringPrivate*>(m_private)->length() - 1; | |
72 } | |
73 | |
74 const char* WebCString::data() const | |
75 { | |
76 if (!m_private) | |
77 return 0; | |
78 return const_cast<WebCStringPrivate*>(m_private)->data(); | |
79 } | |
80 | |
81 WebString WebCString::utf16() const | |
82 { | |
83 return WebCore::UTF8Encoding().decode(data(), length()); | |
84 } | |
85 | |
86 WebCString WebCString::fromUTF16(const WebUChar* data, size_t length) | |
87 { | |
88 return WebCore::UTF8Encoding().encode( | |
89 data, length, WebCore::QuestionMarksForUnencodables); | |
90 } | |
91 | |
92 WebCString WebCString::fromUTF16(const WebUChar* data) | |
93 { | |
94 size_t len = 0; | |
95 while (data[len] != WebUChar(0)) | |
96 len++; | |
97 return fromUTF16(data, len); | |
98 } | |
99 | |
100 WebCString::WebCString(const WebCore::CString& s) | |
101 : m_private(static_cast<WebCStringPrivate*>(s.buffer())) | |
102 { | |
103 if (m_private) | |
104 m_private->ref(); | |
105 } | |
106 | |
107 WebCString& WebCString::operator=(const WebCore::CString& s) | |
108 { | |
109 assign(static_cast<WebCStringPrivate*>(s.buffer())); | |
110 return *this; | |
111 } | |
112 | |
113 WebCString::operator WebCore::CString() const | |
114 { | |
115 return m_private; | |
116 } | |
117 | |
118 void WebCString::assign(WebCStringPrivate* p) | |
119 { | |
120 // Take care to handle the case where m_private == p | |
121 if (p) | |
122 p->ref(); | |
123 if (m_private) | |
124 m_private->deref(); | |
125 m_private = p; | |
126 } | |
127 | |
128 } // namespace WebKit | |
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