1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
|
/*
* Copyright (C) 2008 Apple Inc. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "StorageArea.h"
#include "CString.h"
#include "ExceptionCode.h"
#include "SecurityOrigin.h"
#include "StorageMap.h"
namespace WebCore {
StorageArea::StorageArea(SecurityOrigin* origin)
: m_securityOrigin(origin)
, m_storageMap(StorageMap::create())
{
}
StorageArea::StorageArea(SecurityOrigin* origin, StorageArea* area)
: m_securityOrigin(origin)
, m_storageMap(area->m_storageMap)
{
}
StorageArea::~StorageArea()
{
}
unsigned StorageArea::internalLength() const
{
return m_storageMap->length();
}
String StorageArea::internalKey(unsigned index, ExceptionCode& ec) const
{
String key;
if (!m_storageMap->key(index, key)) {
ec = INDEX_SIZE_ERR;
return String();
}
return key;
}
String StorageArea::internalGetItem(const String& key) const
{
return m_storageMap->getItem(key);
}
void StorageArea::internalSetItem(const String& key, const String& value, ExceptionCode&, Frame* frame)
{
ASSERT(!value.isNull());
// FIXME: For LocalStorage where a disk quota will be enforced, here is where we need to do quota checking.
// If we decide to enforce a memory quota for SessionStorage, this is where we'd do that, also.
// if (<over quota>) {
// ec = INVALID_ACCESS_ERR;
// return;
// }
String oldValue;
RefPtr<StorageMap> newMap = m_storageMap->setItem(key, value, oldValue);
if (newMap)
m_storageMap = newMap.release();
// Only notify the client if an item was actually changed
if (oldValue != value)
itemChanged(key, oldValue, value, frame);
}
void StorageArea::internalRemoveItem(const String& key, Frame* frame)
{
String oldValue;
RefPtr<StorageMap> newMap = m_storageMap->removeItem(key, oldValue);
if (newMap)
m_storageMap = newMap.release();
// Only notify the client if an item was actually removed
if (!oldValue.isNull())
itemRemoved(key, oldValue, frame);
}
void StorageArea::internalClear(Frame* frame)
{
m_storageMap = StorageMap::create();
areaCleared(frame);
}
bool StorageArea::internalContains(const String& key) const
{
return m_storageMap->contains(key);
}
void StorageArea::importItem(const String& key, const String& value)
{
m_storageMap->importItem(key, value);
}
}
|
