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 "WebString.h"

    33 

    34 #include "AtomicString.h"

    35 #include "PlatformString.h"

    36 #include <wtf/text/CString.h>

    37 

    38 #include "WebCString.h"

    39 

    40 namespace WebKit {

    41 

    42 class WebStringPrivate : public WebCore::StringImpl {

    43 };

    44 

    45 void WebString::reset()

    46 {

    47     if (m_private) {

    48         m_private->deref();

    49         m_private = 0;

    50     }

    51 }

    52 

    53 void WebString::assign(const WebString& other)

    54 {

    55     assign(const_cast<WebStringPrivate*>(other.m_private));

    56 }

    57 

    58 void WebString::assign(const WebUChar* data, size_t length)

    59 {

    60     assign(static_cast<WebStringPrivate*>(

    61         WebCore::StringImpl::create(data, length).get()));

    62 }

    63 

    64 size_t WebString::length() const

    65 {

    66     return m_private ? const_cast<WebStringPrivate*>(m_private)->length() : 0;

    67 }

    68 

    69 const WebUChar* WebString::data() const

    70 {

    71     return m_private ? const_cast<WebStringPrivate*>(m_private)->characters() : 0;

    72 }

    73 

    74 WebCString WebString::utf8() const

    75 {

    76     return WebCore::String(m_private).utf8();

    77 }

    78 

    79 WebString WebString::fromUTF8(const char* data, size_t length)

    80 {

    81     return WebCore::String::fromUTF8(data, length);

    82 }

    83 

    84 WebString WebString::fromUTF8(const char* data)

    85 {

    86     return WebCore::String::fromUTF8(data);

    87 }

    88 

    89 bool WebString::equals(const WebString& s) const

    90 {

    91     return equal(m_private, s.m_private);

    92 }

    93 

    94 WebString::WebString(const WebCore::String& s)

    95     : m_private(static_cast<WebStringPrivate*>(s.impl()))

    96 {

    97     if (m_private)

    98         m_private->ref();

    99 }

   100 

   101 WebString& WebString::operator=(const WebCore::String& s)

   102 {

   103     assign(static_cast<WebStringPrivate*>(s.impl()));

   104     return *this;

   105 }

   106 

   107 WebString::operator WebCore::String() const

   108 {

   109     return m_private;

   110 }

   111 

   112 WebString::WebString(const WebCore::AtomicString& s)

   113     : m_private(0)

   114 {

   115     assign(s.string());

   116 }

   117 

   118 WebString& WebString::operator=(const WebCore::AtomicString& s)

   119 {

   120     assign(s.string());

   121     return *this;

   122 }

   123 

   124 WebString::operator WebCore::AtomicString() const

   125 {

   126     return WebCore::AtomicString(static_cast<WebCore::StringImpl *>(m_private));

   127 }

   128 

   129 void WebString::assign(WebStringPrivate* p)

   130 {

   131     // Take care to handle the case where m_private == p

   132     if (p)

   133         p->ref();

   134     if (m_private)

   135         m_private->deref();

   136     m_private = p;

   137 }

   138 

   139 } // namespace WebKit