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 | #pragma once |
27 | |
28 | #if ENABLE(INDEXED_DATABASE) |
29 | |
30 | #include "IDBKeyData.h" |
31 | #include "IDBKeyRange.h" |
32 | |
33 | namespace WebCore { |
34 | |
35 | class IDBKey; |
36 | |
37 | struct IDBKeyRangeData { |
38 | IDBKeyRangeData() |
39 | : isNull(true) |
40 | , lowerOpen(false) |
41 | , upperOpen(false) |
42 | { |
43 | } |
44 | |
45 | static IDBKeyRangeData allKeys() |
46 | { |
47 | IDBKeyRangeData result; |
48 | result.isNull = false; |
49 | result.lowerKey = IDBKeyData::minimum(); |
50 | result.upperKey = IDBKeyData::maximum(); |
51 | return result; |
52 | } |
53 | |
54 | IDBKeyRangeData(IDBKey*); |
55 | IDBKeyRangeData(const IDBKeyData&); |
56 | |
57 | IDBKeyRangeData(IDBKeyRange* keyRange) |
58 | : isNull(!keyRange) |
59 | , lowerOpen(false) |
60 | , upperOpen(false) |
61 | { |
62 | if (isNull) |
63 | return; |
64 | |
65 | lowerKey = keyRange->lower(); |
66 | upperKey = keyRange->upper(); |
67 | lowerOpen = keyRange->lowerOpen(); |
68 | upperOpen = keyRange->upperOpen(); |
69 | } |
70 | |
71 | IDBKeyRangeData isolatedCopy() const; |
72 | |
73 | WEBCORE_EXPORT RefPtr<IDBKeyRange> maybeCreateIDBKeyRange() const; |
74 | |
75 | WEBCORE_EXPORT bool isExactlyOneKey() const; |
76 | bool containsKey(const IDBKeyData&) const; |
77 | bool isValid() const; |
78 | |
79 | template<class Encoder> void encode(Encoder&) const; |
80 | template<class Decoder> static bool decode(Decoder&, IDBKeyRangeData&); |
81 | |
82 | bool isNull; |
83 | |
84 | IDBKeyData lowerKey; |
85 | IDBKeyData upperKey; |
86 | |
87 | bool lowerOpen; |
88 | bool upperOpen; |
89 | |
90 | #if !LOG_DISABLED |
91 | String loggingString() const; |
92 | #endif |
93 | }; |
94 | |
95 | template<class Encoder> |
96 | void IDBKeyRangeData::encode(Encoder& encoder) const |
97 | { |
98 | encoder << isNull; |
99 | if (isNull) |
100 | return; |
101 | |
102 | encoder << upperKey << lowerKey << upperOpen << lowerOpen; |
103 | } |
104 | |
105 | template<class Decoder> |
106 | bool IDBKeyRangeData::decode(Decoder& decoder, IDBKeyRangeData& keyRange) |
107 | { |
108 | if (!decoder.decode(keyRange.isNull)) |
109 | return false; |
110 | |
111 | if (keyRange.isNull) |
112 | return true; |
113 | |
114 | Optional<IDBKeyData> upperKey; |
115 | decoder >> upperKey; |
116 | if (!upperKey) |
117 | return false; |
118 | keyRange.upperKey = WTFMove(*upperKey); |
119 | |
120 | Optional<IDBKeyData> lowerKey; |
121 | decoder >> lowerKey; |
122 | if (!lowerKey) |
123 | return false; |
124 | keyRange.lowerKey = WTFMove(*lowerKey); |
125 | |
126 | if (!decoder.decode(keyRange.upperOpen)) |
127 | return false; |
128 | |
129 | if (!decoder.decode(keyRange.lowerOpen)) |
130 | return false; |
131 | |
132 | return true; |
133 | } |
134 | |
135 | } // namespace WebCore |
136 | |
137 | #endif // ENABLE(INDEXED_DATABASE) |
138 | |