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: ~WebCString()54 ~WebCString() { reset(); } 55 WebCString()56 WebCString() : m_private(0) { } 57 WebCString(const char * data,size_t len)58 WebCString(const char* data, size_t len) : m_private(0) 59 { 60 assign(data, len); 61 } 62 WebCString(const WebCString & s)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 isEmpty()78 bool isEmpty() const { return !length(); } isNull()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 WebCString(const std::string & s)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 string()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> fromUTF16(const UTF16String & s)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 123