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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 WebCString_h | |
32 #define WebCString_h | |
33 | |
34 #include "WebCommon.h" | |
35 | |
36 #if WEBKIT_IMPLEMENTATION | |
37 namespace WebCore { class CString; } | |
38 #else | |
39 #include <string> | |
40 #endif | |
41 | |
42 namespace WebKit { | |
43 | |
44 class WebCStringPrivate; | |
45 class WebString; | |
46 | |
47 // A single-byte string container with unspecified encoding. It is | |
48 // inexpensive to copy a WebCString object. | |
49 // | |
50 // WARNING: It is not safe to pass a WebCString across threads!!! | |
51 // | |
52 class WebCString { | |
53 public: | |
54 ~WebCString() { reset(); } | |
55 | |
56 WebCString() : m_private(0) { } | |
57 | |
58 WebCString(const char* data, size_t len) : m_private(0) | |
59 { | |
60 assign(data, len); | |
61 } | |
62 | |
63 WebCString(const WebCString& s) : m_private(0) { assign(s); } | |
64 | |
65 WebCString& operator=(const WebCString& s) | |
66 { | |
67 assign(s); | |
68 return *this; | |
69 } | |
70 | |
71 WEBKIT_API void reset(); | |
72 WEBKIT_API void assign(const WebCString&); | |
73 WEBKIT_API void assign(const char* data, size_t len); | |
74 | |
75 WEBKIT_API size_t length() const; | |
76 WEBKIT_API const char* data() const; | |
77 | |
78 bool isEmpty() const { return !length(); } | |
79 bool isNull() const { return !m_private; } | |
80 | |
81 WEBKIT_API WebString utf16() const; | |
82 | |
83 WEBKIT_API static WebCString fromUTF16(const WebUChar* data, size_t length); | |
84 WEBKIT_API static WebCString fromUTF16(const WebUChar* data); | |
85 | |
86 #if WEBKIT_IMPLEMENTATION | |
87 WebCString(const WebCore::CString&); | |
88 WebCString& operator=(const WebCore::CString&); | |
89 operator WebCore::CString() const; | |
90 #else | |
91 WebCString(const std::string& s) : m_private(0) | |
92 { | |
93 assign(s.data(), s.length()); | |
94 } | |
95 | |
96 WebCString& operator=(const std::string& s) | |
97 { | |
98 assign(s.data(), s.length()); | |
99 return *this; | |
100 } | |
101 | |
102 operator std::string() const | |
103 { | |
104 size_t len = length(); | |
105 return len ? std::string(data(), len) : std::string(); | |
106 } | |
107 | |
108 template <class UTF16String> | |
109 static WebCString fromUTF16(const UTF16String& s) | |
110 { | |
111 return fromUTF16(s.data(), s.length()); | |
112 } | |
113 #endif | |
114 | |
115 private: | |
116 void assign(WebCStringPrivate*); | |
117 WebCStringPrivate* m_private; | |
118 }; | |
119 | |
120 } // namespace WebKit | |
121 | |
122 #endif | |
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