1635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project/* 22daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch * Copyright (C) 2011 Google Inc. All rights reserved. 38f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian * 4635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * Redistribution and use in source and binary forms, with or without 5635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * modification, are permitted provided that the following conditions are 6635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * met: 78f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian * 8635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * * Redistributions of source code must retain the above copyright 9635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * notice, this list of conditions and the following disclaimer. 10635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * * Redistributions in binary form must reproduce the above 11635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * copyright notice, this list of conditions and the following disclaimer 12635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * in the documentation and/or other materials provided with the 13635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * distribution. 14635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * * Neither the name of Google Inc. nor the names of its 15635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * contributors may be used to endorse or promote products derived from 16635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * this software without specific prior written permission. 17d0825bca7fe65beaee391d30da42e937db621564Steve Block * 18635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project */ 30635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 312daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch#ifndef StringWithDirection_h 322daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch#define StringWithDirection_h 33dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block 342daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch#include "PlatformString.h" 352daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch#include "TextDirection.h" 36635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 37db14019a23d96bc8a444b6576a5da8bd1cfbc8b0Steve Blocknamespace WebCore { 38e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block 392daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch// In some circumstances we want to store a String along with the TextDirection 402daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch// of the String as learned from the context of the String. For example, 412daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch// consider storing the title derived from <title dir='rtl'>some title</title> 422daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch// in the history. 432daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch// 442daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch// Note that is explicitly *not* the direction of the string as learned 452daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch// from the characters of the string; it's extra metadata we have external 462daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch// to the string. 472daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdochclass StringWithDirection { 48db14019a23d96bc8a444b6576a5da8bd1cfbc8b0Steve Blockpublic: 492daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch StringWithDirection() 502daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch : m_direction(LTR) 51db14019a23d96bc8a444b6576a5da8bd1cfbc8b0Steve Block { 52db14019a23d96bc8a444b6576a5da8bd1cfbc8b0Steve Block } 53635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 542daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch StringWithDirection(const String& string, TextDirection dir) 552daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch : m_string(string) 562daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch , m_direction(dir) 572daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch { 582daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch } 59635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 602daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch const String& string() const { return m_string; } 612daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch TextDirection direction() const { return m_direction; } 622daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch 632daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch bool isEmpty() const { return m_string.isEmpty(); } 642daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch bool isNull() const { return m_string.isNull(); } 652daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch 662daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch bool operator==(const StringWithDirection& other) const 67db14019a23d96bc8a444b6576a5da8bd1cfbc8b0Steve Block { 682daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch return other.m_string == m_string && other.m_direction == m_direction; 69db14019a23d96bc8a444b6576a5da8bd1cfbc8b0Steve Block } 702daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch bool operator!=(const StringWithDirection& other) const { return !((*this) == other); } 71e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block 722daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdochprivate: 732daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch String m_string; 742daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch TextDirection m_direction; 752daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch}; 76d0825bca7fe65beaee391d30da42e937db621564Steve Block 772daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch} 78635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 792daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch#endif // StringWithDirection_h 80