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
126
127
128
129
130
131
132
133
134
135
136
137
138
139
|
/*
* Copyright (C) 2010 Google 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.
* 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "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 OR ITS 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.
*/
#ifndef IDBRequest_h
#define IDBRequest_h
#if ENABLE(INDEXED_DATABASE)
#include "ActiveDOMObject.h"
#include "DOMStringList.h"
#include "Event.h"
#include "EventListener.h"
#include "EventNames.h"
#include "EventTarget.h"
#include "IDBAny.h"
#include "IDBCallbacks.h"
namespace WebCore {
class IDBTransaction;
typedef int ExceptionCode;
class IDBRequest : public IDBCallbacks, public EventTarget, public ActiveDOMObject {
public:
static PassRefPtr<IDBRequest> create(ScriptExecutionContext*, PassRefPtr<IDBAny> source, IDBTransaction*);
virtual ~IDBRequest();
PassRefPtr<IDBAny> result(ExceptionCode&) const;
unsigned short errorCode(ExceptionCode&) const;
String webkitErrorMessage(ExceptionCode&) const;
PassRefPtr<IDBAny> source() const;
PassRefPtr<IDBTransaction> transaction() const;
// Defined in the IDL
enum ReadyState {
LOADING = 1,
DONE = 2,
EarlyDeath = 3
};
unsigned short readyState() const;
DEFINE_ATTRIBUTE_EVENT_LISTENER(success);
DEFINE_ATTRIBUTE_EVENT_LISTENER(error);
void markEarlyDeath();
bool resetReadyState(IDBTransaction*);
void setCursorType(IDBCursorBackendInterface::CursorType);
void setCursor(PassRefPtr<IDBCursor>);
IDBAny* source();
void abort();
// IDBCallbacks
virtual void onError(PassRefPtr<IDBDatabaseError>);
virtual void onSuccess(PassRefPtr<DOMStringList>);
virtual void onSuccess(PassRefPtr<IDBDatabaseBackendInterface>);
virtual void onSuccess(PassRefPtr<IDBCursorBackendInterface>);
virtual void onSuccess(PassRefPtr<IDBKey>);
virtual void onSuccess(PassRefPtr<IDBTransactionBackendInterface>);
virtual void onSuccess(PassRefPtr<SerializedScriptValue>);
virtual void onSuccessWithContinuation();
virtual void onSuccessWithPrefetch(const Vector<RefPtr<IDBKey> >& keys, const Vector<RefPtr<IDBKey> >& primaryKeys, const Vector<RefPtr<SerializedScriptValue> >& values) { ASSERT_NOT_REACHED(); } // Not implemented. Callback should not reach the renderer side.
virtual void onBlocked();
// ActiveDOMObject
virtual bool hasPendingActivity() const OVERRIDE;
virtual void stop() OVERRIDE;
// EventTarget
virtual const AtomicString& interfaceName() const;
virtual ScriptExecutionContext* scriptExecutionContext() const;
virtual bool dispatchEvent(PassRefPtr<Event>);
bool dispatchEvent(PassRefPtr<Event> event, ExceptionCode& ec) { return EventTarget::dispatchEvent(event, ec); }
virtual void uncaughtExceptionInEventHandler();
using ThreadSafeRefCounted<IDBCallbacks>::ref;
using ThreadSafeRefCounted<IDBCallbacks>::deref;
protected:
IDBRequest(ScriptExecutionContext*, PassRefPtr<IDBAny> source, IDBTransaction*);
void enqueueEvent(PassRefPtr<Event>);
RefPtr<IDBAny> m_result;
unsigned short m_errorCode;
String m_errorMessage;
private:
// EventTarget
virtual void refEventTarget() { ref(); }
virtual void derefEventTarget() { deref(); }
virtual EventTargetData* eventTargetData();
virtual EventTargetData* ensureEventTargetData();
void setResultCursor(PassRefPtr<IDBCursor>, IDBCursorBackendInterface::CursorType);
RefPtr<IDBAny> m_source;
RefPtr<IDBTransaction> m_transaction;
ReadyState m_readyState;
bool m_requestFinished; // Is it possible that we'll fire any more events? If not, we're finished.
bool m_contextStopped;
Vector<RefPtr<Event> > m_enqueuedEvents;
// Only used if the result type will be a cursor.
IDBCursorBackendInterface::CursorType m_cursorType;
RefPtr<IDBCursor> m_cursor;
EventTargetData m_eventTargetData;
};
} // namespace WebCore
#endif // ENABLE(INDEXED_DATABASE)
#endif // IDBRequest_h
|
