1 /*
2 * Copyright (C) 2006, 2007, 2008 Apple 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 COMPUTER, INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26 #include "config.h"
27 #include "BString.h"
28
29 #include "KURL.h"
30 #include "PlatformString.h"
31 #include <windows.h>
32 #include <wtf/text/AtomicString.h>
33
34 #if USE(CF)
35 #include <CoreFoundation/CoreFoundation.h>
36 #endif
37
38 using namespace JSC;
39
40 namespace WebCore {
41
BString()42 BString::BString()
43 : m_bstr(0)
44 {
45 }
46
BString(const wchar_t * characters)47 BString::BString(const wchar_t* characters)
48 {
49 if (!characters)
50 m_bstr = 0;
51 else
52 m_bstr = SysAllocString(characters);
53 }
54
BString(const wchar_t * characters,size_t length)55 BString::BString(const wchar_t* characters, size_t length)
56 {
57 if (!characters)
58 m_bstr = 0;
59 else
60 m_bstr = SysAllocStringLen(characters, length);
61 }
62
BString(const String & s)63 BString::BString(const String& s)
64 {
65 if (s.isNull())
66 m_bstr = 0;
67 else
68 m_bstr = SysAllocStringLen(s.characters(), s.length());
69 }
70
BString(const KURL & url)71 BString::BString(const KURL& url)
72 {
73 if (url.isNull())
74 m_bstr = 0;
75 else
76 m_bstr = SysAllocStringLen(url.string().characters(), url.string().length());
77 }
78
BString(const AtomicString & s)79 BString::BString(const AtomicString& s)
80 {
81 if (s.isNull())
82 m_bstr = 0;
83 else
84 m_bstr = SysAllocStringLen(s.characters(), s.length());
85 }
86
BString(const UString & s)87 BString::BString(const UString& s)
88 {
89 if (s.isNull())
90 m_bstr = 0;
91 else
92 m_bstr = SysAllocStringLen(s.characters(), s.length());
93 }
94
95 #if USE(CF)
BString(CFStringRef cfstr)96 BString::BString(CFStringRef cfstr)
97 : m_bstr(0)
98 {
99 if (!cfstr)
100 return;
101
102 const UniChar* uniChars = CFStringGetCharactersPtr(cfstr);
103 if (uniChars) {
104 m_bstr = SysAllocStringLen((LPCWSTR)uniChars, CFStringGetLength(cfstr));
105 return;
106 }
107
108 CFIndex length = CFStringGetLength(cfstr);
109 m_bstr = SysAllocStringLen(0, length);
110 CFStringGetCharacters(cfstr, CFRangeMake(0, length), (UniChar*)m_bstr);
111 m_bstr[length] = 0;
112 }
113 #endif
114
~BString()115 BString::~BString()
116 {
117 SysFreeString(m_bstr);
118 }
119
BString(const BString & other)120 BString::BString(const BString& other)
121 {
122 if (!other.m_bstr)
123 m_bstr = 0;
124 else
125 m_bstr = SysAllocString(other.m_bstr);
126 }
127
adoptBSTR(BSTR bstr)128 void BString::adoptBSTR(BSTR bstr)
129 {
130 if (m_bstr)
131 SysFreeString(m_bstr);
132 m_bstr = bstr;
133 }
134
operator =(const BString & other)135 BString& BString::operator=(const BString& other)
136 {
137 if (this != &other)
138 *this = other.m_bstr;
139 return *this;
140 }
141
operator =(const BSTR & other)142 BString& BString::operator=(const BSTR& other)
143 {
144 if (other != m_bstr) {
145 SysFreeString(m_bstr);
146 m_bstr = other ? SysAllocString(other) : 0;
147 }
148
149 return *this;
150 }
151
operator ==(const BString & a,const BString & b)152 bool operator ==(const BString& a, const BString& b)
153 {
154 if (SysStringLen((BSTR)a) != SysStringLen((BSTR)b))
155 return false;
156 if (!(BSTR)a && !(BSTR)b)
157 return true;
158 if (!(BSTR)a || !(BSTR)b)
159 return false;
160 return !wcscmp((BSTR)a, (BSTR)b);
161 }
162
operator !=(const BString & a,const BString & b)163 bool operator !=(const BString& a, const BString& b)
164 {
165 return !(a==b);
166 }
167
operator ==(const BString & a,BSTR b)168 bool operator ==(const BString& a, BSTR b)
169 {
170 if (SysStringLen((BSTR)a) != SysStringLen(b))
171 return false;
172 if (!(BSTR)a && !b)
173 return true;
174 if (!(BSTR)a || !b)
175 return false;
176 return !wcscmp((BSTR)a, b);
177 }
178
operator !=(const BString & a,BSTR b)179 bool operator !=(const BString& a, BSTR b)
180 {
181 return !(a==b);
182 }
183
operator ==(BSTR a,const BString & b)184 bool operator ==(BSTR a, const BString& b)
185 {
186 if (SysStringLen(a) != SysStringLen((BSTR)b))
187 return false;
188 if (!a && !(BSTR)b)
189 return true;
190 if (!a || !(BSTR)b)
191 return false;
192 return !wcscmp(a, (BSTR)b);
193 }
194
operator !=(BSTR a,const BString & b)195 bool operator !=(BSTR a, const BString& b)
196 {
197 return !(a==b);
198 }
199
200 }
201