Home | History | Annotate | Download | only in win 
      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 
     42 BString::BString()
     43     : m_bstr(0)
     44 {
     45 }
     46 
     47 BString::BString(const wchar_t* characters)
     48 {
     49     if (!characters)
     50         m_bstr = 0;
     51     else
     52         m_bstr = SysAllocString(characters);
     53 }
     54 
     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 
     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 
     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 
     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 
     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)
     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 
    115 BString::~BString()
    116 {
    117     SysFreeString(m_bstr);
    118 }
    119 
    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 
    128 void BString::adoptBSTR(BSTR bstr)
    129 {
    130     if (m_bstr)
    131         SysFreeString(m_bstr);
    132     m_bstr = bstr;
    133 }
    134 
    135 BString& BString::operator=(const BString& other)
    136 {
    137     if (this != &other)
    138         *this = other.m_bstr;
    139     return *this;
    140 }
    141 
    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 
    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 
    163 bool operator !=(const BString& a, const BString& b)
    164 {
    165     return !(a==b);
    166 }
    167 
    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 
    179 bool operator !=(const BString& a, BSTR b)
    180 {
    181     return !(a==b);
    182 }
    183 
    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 
    195 bool operator !=(BSTR a, const BString& b)
    196 {
    197     return !(a==b);
    198 }
    199 
    200 }
    201