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
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
|
/*
* 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
#include "bindings/v8/ScriptState.h"
#include "bindings/v8/ScriptValue.h"
#include "bindings/v8/ScriptWrappable.h"
#include "core/dom/ActiveDOMObject.h"
#include "core/dom/DOMError.h"
#include "core/dom/DOMStringList.h"
#include "core/events/EventListener.h"
#include "core/events/EventTarget.h"
#include "modules/EventModules.h"
#include "modules/indexeddb/IDBAny.h"
#include "modules/indexeddb/IDBTransaction.h"
#include "modules/indexeddb/IndexedDB.h"
#include "platform/heap/Handle.h"
#include "public/platform/WebBlobInfo.h"
#include "public/platform/WebIDBCursor.h"
#include "public/platform/WebIDBTypes.h"
namespace WebCore {
class ExceptionState;
class IDBCursor;
struct IDBDatabaseMetadata;
class SharedBuffer;
class IDBRequest
: public RefCountedGarbageCollectedWillBeGarbageCollectedFinalized<IDBRequest>
, public ScriptWrappable
, public EventTargetWithInlineData
, public ActiveDOMObject {
DEFINE_EVENT_TARGET_REFCOUNTING_WILL_BE_REMOVED(RefCountedGarbageCollected<IDBRequest>);
WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(IDBRequest);
public:
static IDBRequest* create(ScriptState*, IDBAny* source, IDBTransaction*);
virtual ~IDBRequest();
virtual void trace(Visitor*) OVERRIDE;
ScriptValue result(ExceptionState&);
PassRefPtrWillBeRawPtr<DOMError> error(ExceptionState&) const;
ScriptValue source() const;
IDBTransaction* transaction() const { return m_transaction.get(); }
bool isResultDirty() const { return m_resultDirty; }
IDBAny* resultAsAny() const { return m_result; }
// Requests made during index population are implementation details and so
// events should not be visible to script.
void preventPropagation() { m_preventPropagation = true; }
// Defined in the IDL
enum ReadyState {
PENDING = 1,
DONE = 2,
EarlyDeath = 3
};
const String& readyState() const;
DEFINE_ATTRIBUTE_EVENT_LISTENER(success);
DEFINE_ATTRIBUTE_EVENT_LISTENER(error);
void setCursorDetails(IndexedDB::CursorType, blink::WebIDBCursorDirection);
void setPendingCursor(IDBCursor*);
void abort();
virtual void onError(PassRefPtrWillBeRawPtr<DOMError>);
virtual void onSuccess(const Vector<String>&);
virtual void onSuccess(PassOwnPtr<blink::WebIDBCursor>, IDBKey*, IDBKey* primaryKey, PassRefPtr<SharedBuffer>, PassOwnPtr<Vector<blink::WebBlobInfo> >);
virtual void onSuccess(IDBKey*);
virtual void onSuccess(PassRefPtr<SharedBuffer>, PassOwnPtr<Vector<blink::WebBlobInfo> >);
virtual void onSuccess(PassRefPtr<SharedBuffer>, PassOwnPtr<Vector<blink::WebBlobInfo> >, IDBKey*, const IDBKeyPath&);
virtual void onSuccess(int64_t);
virtual void onSuccess();
virtual void onSuccess(IDBKey*, IDBKey* primaryKey, PassRefPtr<SharedBuffer>, PassOwnPtr<Vector<blink::WebBlobInfo> >);
// Only IDBOpenDBRequest instances should receive these:
virtual void onBlocked(int64_t oldVersion) { ASSERT_NOT_REACHED(); }
virtual void onUpgradeNeeded(int64_t oldVersion, PassOwnPtr<blink::WebIDBDatabase>, const IDBDatabaseMetadata&, blink::WebIDBDataLoss, String dataLossMessage) { ASSERT_NOT_REACHED(); }
virtual void onSuccess(PassOwnPtr<blink::WebIDBDatabase>, const IDBDatabaseMetadata&) { ASSERT_NOT_REACHED(); }
// ActiveDOMObject
virtual bool hasPendingActivity() const OVERRIDE FINAL;
virtual void stop() OVERRIDE FINAL;
// EventTarget
virtual const AtomicString& interfaceName() const OVERRIDE;
virtual ExecutionContext* executionContext() const OVERRIDE FINAL;
virtual void uncaughtExceptionInEventHandler() OVERRIDE FINAL;
using EventTarget::dispatchEvent;
virtual bool dispatchEvent(PassRefPtrWillBeRawPtr<Event>) OVERRIDE;
// Called by a version change transaction that has finished to set this
// request back from DONE (following "upgradeneeded") back to PENDING (for
// the upcoming "success" or "error").
void transactionDidFinishAndDispatch();
IDBCursor* getResultCursor() const;
protected:
IDBRequest(ScriptState*, IDBAny* source, IDBTransaction*);
void enqueueEvent(PassRefPtrWillBeRawPtr<Event>);
void dequeueEvent(Event*);
virtual bool shouldEnqueueEvent() const;
void onSuccessInternal(IDBAny*);
void setResult(IDBAny*);
bool m_contextStopped;
Member<IDBTransaction> m_transaction;
ReadyState m_readyState;
bool m_requestAborted; // May be aborted by transaction then receive async onsuccess; ignore vs. assert.
private:
void setResultCursor(IDBCursor*, IDBKey*, IDBKey* primaryKey, PassRefPtr<SharedBuffer> value, PassOwnPtr<Vector<blink::WebBlobInfo> >);
void handleBlobAcks();
RefPtr<ScriptState> m_scriptState;
Member<IDBAny> m_source;
Member<IDBAny> m_result;
RefPtrWillBeMember<DOMError> m_error;
bool m_hasPendingActivity;
WillBeHeapVector<RefPtrWillBeMember<Event> > m_enqueuedEvents;
// Only used if the result type will be a cursor.
IndexedDB::CursorType m_cursorType;
blink::WebIDBCursorDirection m_cursorDirection;
// When a cursor is continued/advanced, m_result is cleared and m_pendingCursor holds it.
Member<IDBCursor> m_pendingCursor;
// New state is not applied to the cursor object until the event is dispatched.
Member<IDBKey> m_cursorKey;
Member<IDBKey> m_cursorPrimaryKey;
RefPtr<SharedBuffer> m_cursorValue;
OwnPtr<Vector<blink::WebBlobInfo> > m_blobInfo;
bool m_didFireUpgradeNeededEvent;
bool m_preventPropagation;
bool m_resultDirty;
};
} // namespace WebCore
#endif // IDBRequest_h
|
