1 /* 2 * Copyright (C) 2011 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 StringWithDirection_h 32 #define StringWithDirection_h 33 34 #include "PlatformString.h" 35 #include "TextDirection.h" 36 37 namespace WebCore { 38 39 // In some circumstances we want to store a String along with the TextDirection 40 // of the String as learned from the context of the String. For example, 41 // consider storing the title derived from <title dir='rtl'>some title</title> 42 // in the history. 43 // 44 // Note that is explicitly *not* the direction of the string as learned 45 // from the characters of the string; it's extra metadata we have external 46 // to the string. 47 class StringWithDirection { 48 public: StringWithDirection()49 StringWithDirection() 50 : m_direction(LTR) 51 { 52 } 53 StringWithDirection(const String & string,TextDirection dir)54 StringWithDirection(const String& string, TextDirection dir) 55 : m_string(string) 56 , m_direction(dir) 57 { 58 } 59 string()60 const String& string() const { return m_string; } direction()61 TextDirection direction() const { return m_direction; } 62 isEmpty()63 bool isEmpty() const { return m_string.isEmpty(); } isNull()64 bool isNull() const { return m_string.isNull(); } 65 66 bool operator==(const StringWithDirection& other) const 67 { 68 return other.m_string == m_string && other.m_direction == m_direction; 69 } 70 bool operator!=(const StringWithDirection& other) const { return !((*this) == other); } 71 72 private: 73 String m_string; 74 TextDirection m_direction; 75 }; 76 77 } 78 79 #endif // StringWithDirection_h 80