1/* 2 * Copyright (C) 2014 Apple 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 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' 14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS 17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 23 * THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#ifndef EditingRange_h 27#define EditingRange_h 28 29#include "ArgumentCoders.h" 30#include <wtf/Vector.h> 31 32namespace WebKit { 33 34struct EditingRange { 35 EditingRange() 36 : location(notFound) 37 , length(0) 38 { 39 } 40 41 EditingRange(uint64_t location, uint64_t length) 42 : location(location) 43 , length(length) 44 { 45 } 46 47 // (notFound, 0) is notably valid. 48 bool isValid() const { return location + length >= location; } 49 50#if defined(__OBJC__) 51 EditingRange(NSRange range) 52 { 53 if (range.location != NSNotFound) { 54 location = range.location; 55 length = range.length; 56 } else { 57 location = notFound; 58 length = 0; 59 } 60 } 61 62 operator NSRange() const 63 { 64 if (location == notFound) 65 return NSMakeRange(NSNotFound, 0); 66 return NSMakeRange(location, length); 67 } 68#endif 69 70 uint64_t location; 71 uint64_t length; 72}; 73 74} 75 76namespace IPC { 77template<> struct ArgumentCoder<WebKit::EditingRange> : SimpleArgumentCoder<WebKit::EditingRange> { }; 78} 79 80#endif // EditingRange_h 81