1643ca7872b450ea4efacab6188849e5aac2ba161Steve Block/* 2643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * Copyright (C) 2009 Google Inc. All rights reserved. 3643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * 4643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * Redistribution and use in source and binary forms, with or without 5643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * modification, are permitted provided that the following conditions are 6643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * met: 7643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * 8643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * * Redistributions of source code must retain the above copyright 9643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * notice, this list of conditions and the following disclaimer. 10643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * * Redistributions in binary form must reproduce the above 11643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * copyright notice, this list of conditions and the following disclaimer 12643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * in the documentation and/or other materials provided with the 13643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * distribution. 14643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * * Neither the name of Google Inc. nor the names of its 15643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * contributors may be used to endorse or promote products derived from 16643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * this software without specific prior written permission. 17643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * 18643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28643ca7872b450ea4efacab6188849e5aac2ba161Steve Block * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29643ca7872b450ea4efacab6188849e5aac2ba161Steve Block */ 30643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 31643ca7872b450ea4efacab6188849e5aac2ba161Steve Block#ifndef WebString_h 32643ca7872b450ea4efacab6188849e5aac2ba161Steve Block#define WebString_h 33643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 34643ca7872b450ea4efacab6188849e5aac2ba161Steve Block#include "WebCommon.h" 35643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 36643ca7872b450ea4efacab6188849e5aac2ba161Steve Block#if WEBKIT_IMPLEMENTATION 37dd8bb3de4f353a81954234999f1fea748aee2ea9Ben Murdoch#include <wtf/Forward.h> 38643ca7872b450ea4efacab6188849e5aac2ba161Steve Block#else 39643ca7872b450ea4efacab6188849e5aac2ba161Steve Block#include <base/nullable_string16.h> 40643ca7872b450ea4efacab6188849e5aac2ba161Steve Block#include <base/string16.h> 41643ca7872b450ea4efacab6188849e5aac2ba161Steve Block#endif 42643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 43643ca7872b450ea4efacab6188849e5aac2ba161Steve Blocknamespace WebKit { 44643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 45643ca7872b450ea4efacab6188849e5aac2ba161Steve Blockclass WebCString; 46643ca7872b450ea4efacab6188849e5aac2ba161Steve Blockclass WebStringPrivate; 47643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 48643ca7872b450ea4efacab6188849e5aac2ba161Steve Block// A UTF-16 string container. It is inexpensive to copy a WebString 49643ca7872b450ea4efacab6188849e5aac2ba161Steve Block// object. 50643ca7872b450ea4efacab6188849e5aac2ba161Steve Block// 51643ca7872b450ea4efacab6188849e5aac2ba161Steve Block// WARNING: It is not safe to pass a WebString across threads!!! 52643ca7872b450ea4efacab6188849e5aac2ba161Steve Block// 53643ca7872b450ea4efacab6188849e5aac2ba161Steve Blockclass WebString { 54643ca7872b450ea4efacab6188849e5aac2ba161Steve Blockpublic: 55643ca7872b450ea4efacab6188849e5aac2ba161Steve Block ~WebString() { reset(); } 56643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 57643ca7872b450ea4efacab6188849e5aac2ba161Steve Block WebString() : m_private(0) { } 58643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 59643ca7872b450ea4efacab6188849e5aac2ba161Steve Block WebString(const WebUChar* data, size_t len) : m_private(0) 60643ca7872b450ea4efacab6188849e5aac2ba161Steve Block { 61643ca7872b450ea4efacab6188849e5aac2ba161Steve Block assign(data, len); 62643ca7872b450ea4efacab6188849e5aac2ba161Steve Block } 63643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 64643ca7872b450ea4efacab6188849e5aac2ba161Steve Block WebString(const WebString& s) : m_private(0) { assign(s); } 65643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 66643ca7872b450ea4efacab6188849e5aac2ba161Steve Block WebString& operator=(const WebString& s) 67643ca7872b450ea4efacab6188849e5aac2ba161Steve Block { 68643ca7872b450ea4efacab6188849e5aac2ba161Steve Block assign(s); 69643ca7872b450ea4efacab6188849e5aac2ba161Steve Block return *this; 70643ca7872b450ea4efacab6188849e5aac2ba161Steve Block } 71643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 72643ca7872b450ea4efacab6188849e5aac2ba161Steve Block WEBKIT_API void reset(); 73643ca7872b450ea4efacab6188849e5aac2ba161Steve Block WEBKIT_API void assign(const WebString&); 74643ca7872b450ea4efacab6188849e5aac2ba161Steve Block WEBKIT_API void assign(const WebUChar* data, size_t len); 75643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 76d0825bca7fe65beaee391d30da42e937db621564Steve Block WEBKIT_API bool equals(const WebString& s) const; 77d0825bca7fe65beaee391d30da42e937db621564Steve Block 78643ca7872b450ea4efacab6188849e5aac2ba161Steve Block WEBKIT_API size_t length() const; 79643ca7872b450ea4efacab6188849e5aac2ba161Steve Block WEBKIT_API const WebUChar* data() const; 80643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 81643ca7872b450ea4efacab6188849e5aac2ba161Steve Block bool isEmpty() const { return !length(); } 82643ca7872b450ea4efacab6188849e5aac2ba161Steve Block bool isNull() const { return !m_private; } 83643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 84643ca7872b450ea4efacab6188849e5aac2ba161Steve Block WEBKIT_API WebCString utf8() const; 85643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 86643ca7872b450ea4efacab6188849e5aac2ba161Steve Block WEBKIT_API static WebString fromUTF8(const char* data, size_t length); 87643ca7872b450ea4efacab6188849e5aac2ba161Steve Block WEBKIT_API static WebString fromUTF8(const char* data); 88643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 89d0825bca7fe65beaee391d30da42e937db621564Steve Block template <int N> WebString(const char (&data)[N]) 90d0825bca7fe65beaee391d30da42e937db621564Steve Block : m_private(0) 91d0825bca7fe65beaee391d30da42e937db621564Steve Block { 92d0825bca7fe65beaee391d30da42e937db621564Steve Block assign(fromUTF8(data, N - 1)); 93d0825bca7fe65beaee391d30da42e937db621564Steve Block } 94d0825bca7fe65beaee391d30da42e937db621564Steve Block 95d0825bca7fe65beaee391d30da42e937db621564Steve Block template <int N> WebString& operator=(const char (&data)[N]) 96d0825bca7fe65beaee391d30da42e937db621564Steve Block { 97d0825bca7fe65beaee391d30da42e937db621564Steve Block assign(fromUTF8(data, N - 1)); 98d0825bca7fe65beaee391d30da42e937db621564Steve Block return *this; 99d0825bca7fe65beaee391d30da42e937db621564Steve Block } 100d0825bca7fe65beaee391d30da42e937db621564Steve Block 101643ca7872b450ea4efacab6188849e5aac2ba161Steve Block#if WEBKIT_IMPLEMENTATION 102dd8bb3de4f353a81954234999f1fea748aee2ea9Ben Murdoch WebString(const WTF::String&); 103dd8bb3de4f353a81954234999f1fea748aee2ea9Ben Murdoch WebString& operator=(const WTF::String&); 104dd8bb3de4f353a81954234999f1fea748aee2ea9Ben Murdoch operator WTF::String() const; 105643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 106dd8bb3de4f353a81954234999f1fea748aee2ea9Ben Murdoch WebString(const WTF::AtomicString&); 107dd8bb3de4f353a81954234999f1fea748aee2ea9Ben Murdoch WebString& operator=(const WTF::AtomicString&); 108dd8bb3de4f353a81954234999f1fea748aee2ea9Ben Murdoch operator WTF::AtomicString() const; 109643ca7872b450ea4efacab6188849e5aac2ba161Steve Block#else 110d0825bca7fe65beaee391d30da42e937db621564Steve Block 111643ca7872b450ea4efacab6188849e5aac2ba161Steve Block WebString(const string16& s) : m_private(0) 112643ca7872b450ea4efacab6188849e5aac2ba161Steve Block { 113643ca7872b450ea4efacab6188849e5aac2ba161Steve Block assign(s.data(), s.length()); 114643ca7872b450ea4efacab6188849e5aac2ba161Steve Block } 115643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 116643ca7872b450ea4efacab6188849e5aac2ba161Steve Block WebString& operator=(const string16& s) 117643ca7872b450ea4efacab6188849e5aac2ba161Steve Block { 118643ca7872b450ea4efacab6188849e5aac2ba161Steve Block assign(s.data(), s.length()); 119643ca7872b450ea4efacab6188849e5aac2ba161Steve Block return *this; 120643ca7872b450ea4efacab6188849e5aac2ba161Steve Block } 121643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 122643ca7872b450ea4efacab6188849e5aac2ba161Steve Block operator string16() const 123643ca7872b450ea4efacab6188849e5aac2ba161Steve Block { 124643ca7872b450ea4efacab6188849e5aac2ba161Steve Block size_t len = length(); 125643ca7872b450ea4efacab6188849e5aac2ba161Steve Block return len ? string16(data(), len) : string16(); 126643ca7872b450ea4efacab6188849e5aac2ba161Steve Block } 127643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 128643ca7872b450ea4efacab6188849e5aac2ba161Steve Block WebString(const NullableString16& s) : m_private(0) 129643ca7872b450ea4efacab6188849e5aac2ba161Steve Block { 130643ca7872b450ea4efacab6188849e5aac2ba161Steve Block if (s.is_null()) 131ca9cb53ed1119a3fd98fafa0972ffeb56dee1c24Steve Block reset(); 132643ca7872b450ea4efacab6188849e5aac2ba161Steve Block else 133643ca7872b450ea4efacab6188849e5aac2ba161Steve Block assign(s.string().data(), s.string().length()); 134643ca7872b450ea4efacab6188849e5aac2ba161Steve Block } 135643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 136643ca7872b450ea4efacab6188849e5aac2ba161Steve Block WebString& operator=(const NullableString16& s) 137643ca7872b450ea4efacab6188849e5aac2ba161Steve Block { 138643ca7872b450ea4efacab6188849e5aac2ba161Steve Block if (s.is_null()) 139ca9cb53ed1119a3fd98fafa0972ffeb56dee1c24Steve Block reset(); 140643ca7872b450ea4efacab6188849e5aac2ba161Steve Block else 141643ca7872b450ea4efacab6188849e5aac2ba161Steve Block assign(s.string().data(), s.string().length()); 142643ca7872b450ea4efacab6188849e5aac2ba161Steve Block return *this; 143643ca7872b450ea4efacab6188849e5aac2ba161Steve Block } 144643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 145643ca7872b450ea4efacab6188849e5aac2ba161Steve Block operator NullableString16() const 146643ca7872b450ea4efacab6188849e5aac2ba161Steve Block { 147643ca7872b450ea4efacab6188849e5aac2ba161Steve Block if (!m_private) 148643ca7872b450ea4efacab6188849e5aac2ba161Steve Block return NullableString16(string16(), true); 149643ca7872b450ea4efacab6188849e5aac2ba161Steve Block size_t len = length(); 150643ca7872b450ea4efacab6188849e5aac2ba161Steve Block return NullableString16(len ? string16(data(), len) : string16(), false); 151643ca7872b450ea4efacab6188849e5aac2ba161Steve Block } 152643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 153643ca7872b450ea4efacab6188849e5aac2ba161Steve Block template <class UTF8String> 154643ca7872b450ea4efacab6188849e5aac2ba161Steve Block static WebString fromUTF8(const UTF8String& s) 155643ca7872b450ea4efacab6188849e5aac2ba161Steve Block { 156643ca7872b450ea4efacab6188849e5aac2ba161Steve Block return fromUTF8(s.data(), s.length()); 157643ca7872b450ea4efacab6188849e5aac2ba161Steve Block } 158643ca7872b450ea4efacab6188849e5aac2ba161Steve Block#endif 159643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 160643ca7872b450ea4efacab6188849e5aac2ba161Steve Blockprivate: 161643ca7872b450ea4efacab6188849e5aac2ba161Steve Block void assign(WebStringPrivate*); 162643ca7872b450ea4efacab6188849e5aac2ba161Steve Block WebStringPrivate* m_private; 163643ca7872b450ea4efacab6188849e5aac2ba161Steve Block}; 164643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 165d0825bca7fe65beaee391d30da42e937db621564Steve Blockinline bool operator==(const WebString& a, const WebString& b) 166d0825bca7fe65beaee391d30da42e937db621564Steve Block{ 167d0825bca7fe65beaee391d30da42e937db621564Steve Block return a.equals(b); 168d0825bca7fe65beaee391d30da42e937db621564Steve Block} 169d0825bca7fe65beaee391d30da42e937db621564Steve Block 170d0825bca7fe65beaee391d30da42e937db621564Steve Blockinline bool operator!=(const WebString& a, const WebString& b) 171d0825bca7fe65beaee391d30da42e937db621564Steve Block{ 172d0825bca7fe65beaee391d30da42e937db621564Steve Block return !(a == b); 173d0825bca7fe65beaee391d30da42e937db621564Steve Block} 174d0825bca7fe65beaee391d30da42e937db621564Steve Block 175643ca7872b450ea4efacab6188849e5aac2ba161Steve Block} // namespace WebKit 176643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 177643ca7872b450ea4efacab6188849e5aac2ba161Steve Block#endif 178