1/*
2 * Copyright (C) 2010 Google 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 *
8 * 1.  Redistributions of source code must retain the above copyright
9 *     notice, this list of conditions and the following disclaimer.
10 * 2.  Redistributions in binary form must reproduce the above copyright
11 *     notice, this list of conditions and the following disclaimer in the
12 *     documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
16 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
17 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
18 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
19 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
20 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
21 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "config.h"
27#include "modules/indexeddb/IDBIndex.h"
28
29#include "bindings/v8/ExceptionState.h"
30#include "bindings/v8/IDBBindingUtilities.h"
31#include "core/dom/ExceptionCode.h"
32#include "core/dom/ExecutionContext.h"
33#include "modules/indexeddb/IDBDatabase.h"
34#include "modules/indexeddb/IDBKey.h"
35#include "modules/indexeddb/IDBTracing.h"
36#include "modules/indexeddb/IDBTransaction.h"
37#include "modules/indexeddb/WebIDBCallbacksImpl.h"
38#include "public/platform/WebIDBKeyRange.h"
39
40using blink::WebIDBDatabase;
41using blink::WebIDBCallbacks;
42
43namespace WebCore {
44
45IDBIndex::IDBIndex(const IDBIndexMetadata& metadata, IDBObjectStore* objectStore, IDBTransaction* transaction)
46    : m_metadata(metadata)
47    , m_objectStore(objectStore)
48    , m_transaction(transaction)
49    , m_deleted(false)
50{
51    ASSERT(m_objectStore);
52    ASSERT(m_transaction);
53    ASSERT(m_metadata.id != IDBIndexMetadata::InvalidId);
54    ScriptWrappable::init(this);
55}
56
57IDBIndex::~IDBIndex()
58{
59}
60
61ScriptValue IDBIndex::keyPath(ExecutionContext* context) const
62{
63    DOMRequestState requestState(context);
64    return idbAnyToScriptValue(&requestState, IDBAny::create(m_metadata.keyPath));
65}
66
67PassRefPtr<IDBRequest> IDBIndex::openCursor(ExecutionContext* context, const ScriptValue& range, const String& directionString, ExceptionState& exceptionState)
68{
69    IDB_TRACE("IDBIndex::openCursor");
70    if (isDeleted()) {
71        exceptionState.throwDOMException(InvalidStateError, IDBDatabase::indexDeletedErrorMessage);
72        return 0;
73    }
74    if (m_transaction->isFinished()) {
75        exceptionState.throwDOMException(TransactionInactiveError, IDBDatabase::transactionFinishedErrorMessage);
76        return 0;
77    }
78    if (!m_transaction->isActive()) {
79        exceptionState.throwDOMException(TransactionInactiveError, IDBDatabase::transactionInactiveErrorMessage);
80        return 0;
81    }
82    IndexedDB::CursorDirection direction = IDBCursor::stringToDirection(directionString, exceptionState);
83    if (exceptionState.hadException())
84        return 0;
85
86    RefPtr<IDBKeyRange> keyRange = IDBKeyRange::fromScriptValue(context, range, exceptionState);
87    if (exceptionState.hadException())
88        return 0;
89
90    return openCursor(context, keyRange.release(), direction);
91}
92
93PassRefPtr<IDBRequest> IDBIndex::openCursor(ExecutionContext* context, PassRefPtr<IDBKeyRange> keyRange, IndexedDB::CursorDirection direction)
94{
95    RefPtr<IDBRequest> request = IDBRequest::create(context, IDBAny::create(this), m_transaction.get());
96    request->setCursorDetails(IndexedDB::CursorKeyAndValue, direction);
97    backendDB()->openCursor(m_transaction->id(), m_objectStore->id(), m_metadata.id, keyRange, direction, false, WebIDBDatabase::NormalTask, WebIDBCallbacksImpl::create(request).leakPtr());
98    return request;
99}
100
101PassRefPtr<IDBRequest> IDBIndex::count(ExecutionContext* context, const ScriptValue& range, ExceptionState& exceptionState)
102{
103    IDB_TRACE("IDBIndex::count");
104    if (isDeleted()) {
105        exceptionState.throwDOMException(InvalidStateError, IDBDatabase::indexDeletedErrorMessage);
106        return 0;
107    }
108    if (m_transaction->isFinished()) {
109        exceptionState.throwDOMException(TransactionInactiveError, IDBDatabase::transactionFinishedErrorMessage);
110        return 0;
111    }
112    if (!m_transaction->isActive()) {
113        exceptionState.throwDOMException(TransactionInactiveError, IDBDatabase::transactionInactiveErrorMessage);
114        return 0;
115    }
116
117    RefPtr<IDBKeyRange> keyRange = IDBKeyRange::fromScriptValue(context, range, exceptionState);
118    if (exceptionState.hadException())
119        return 0;
120
121    RefPtr<IDBRequest> request = IDBRequest::create(context, IDBAny::create(this), m_transaction.get());
122    backendDB()->count(m_transaction->id(), m_objectStore->id(), m_metadata.id, keyRange.release(), WebIDBCallbacksImpl::create(request).leakPtr());
123    return request;
124}
125
126PassRefPtr<IDBRequest> IDBIndex::openKeyCursor(ExecutionContext* context, const ScriptValue& range, const String& directionString, ExceptionState& exceptionState)
127{
128    IDB_TRACE("IDBIndex::openKeyCursor");
129    if (isDeleted()) {
130        exceptionState.throwDOMException(InvalidStateError, IDBDatabase::indexDeletedErrorMessage);
131        return 0;
132    }
133    if (m_transaction->isFinished()) {
134        exceptionState.throwDOMException(TransactionInactiveError, IDBDatabase::transactionFinishedErrorMessage);
135        return 0;
136    }
137    if (!m_transaction->isActive()) {
138        exceptionState.throwDOMException(TransactionInactiveError, IDBDatabase::transactionInactiveErrorMessage);
139        return 0;
140    }
141    IndexedDB::CursorDirection direction = IDBCursor::stringToDirection(directionString, exceptionState);
142    if (exceptionState.hadException())
143        return 0;
144
145    RefPtr<IDBKeyRange> keyRange = IDBKeyRange::fromScriptValue(context, range, exceptionState);
146    if (exceptionState.hadException())
147        return 0;
148
149    RefPtr<IDBRequest> request = IDBRequest::create(context, IDBAny::create(this), m_transaction.get());
150    request->setCursorDetails(IndexedDB::CursorKeyOnly, direction);
151    backendDB()->openCursor(m_transaction->id(), m_objectStore->id(), m_metadata.id, keyRange.release(), direction, true, WebIDBDatabase::NormalTask, WebIDBCallbacksImpl::create(request).leakPtr());
152    return request;
153}
154
155PassRefPtr<IDBRequest> IDBIndex::get(ExecutionContext* context, const ScriptValue& key, ExceptionState& exceptionState)
156{
157    IDB_TRACE("IDBIndex::get");
158    if (isDeleted()) {
159        exceptionState.throwDOMException(InvalidStateError, IDBDatabase::indexDeletedErrorMessage);
160        return 0;
161    }
162    if (m_transaction->isFinished()) {
163        exceptionState.throwDOMException(TransactionInactiveError, IDBDatabase::transactionFinishedErrorMessage);
164        return 0;
165    }
166    if (!m_transaction->isActive()) {
167        exceptionState.throwDOMException(TransactionInactiveError, IDBDatabase::transactionInactiveErrorMessage);
168        return 0;
169    }
170
171    RefPtr<IDBKeyRange> keyRange = IDBKeyRange::fromScriptValue(context, key, exceptionState);
172    if (exceptionState.hadException())
173        return 0;
174    if (!keyRange) {
175        exceptionState.throwDOMException(DataError, IDBDatabase::noKeyOrKeyRangeErrorMessage);
176        return 0;
177    }
178
179    RefPtr<IDBRequest> request = IDBRequest::create(context, IDBAny::create(this), m_transaction.get());
180    backendDB()->get(m_transaction->id(), m_objectStore->id(), m_metadata.id, keyRange.release(), false, WebIDBCallbacksImpl::create(request).leakPtr());
181    return request;
182}
183
184PassRefPtr<IDBRequest> IDBIndex::getKey(ExecutionContext* context, const ScriptValue& key, ExceptionState& exceptionState)
185{
186    IDB_TRACE("IDBIndex::getKey");
187    if (isDeleted()) {
188        exceptionState.throwDOMException(InvalidStateError, IDBDatabase::indexDeletedErrorMessage);
189        return 0;
190    }
191    if (m_transaction->isFinished()) {
192        exceptionState.throwDOMException(TransactionInactiveError, IDBDatabase::transactionFinishedErrorMessage);
193        return 0;
194    }
195    if (!m_transaction->isActive()) {
196        exceptionState.throwDOMException(TransactionInactiveError, IDBDatabase::transactionInactiveErrorMessage);
197        return 0;
198    }
199
200    RefPtr<IDBKeyRange> keyRange = IDBKeyRange::fromScriptValue(context, key, exceptionState);
201    if (exceptionState.hadException())
202        return 0;
203    if (!keyRange) {
204        exceptionState.throwDOMException(DataError, IDBDatabase::noKeyOrKeyRangeErrorMessage);
205        return 0;
206    }
207
208    RefPtr<IDBRequest> request = IDBRequest::create(context, IDBAny::create(this), m_transaction.get());
209    backendDB()->get(m_transaction->id(), m_objectStore->id(), m_metadata.id, keyRange.release(), true, WebIDBCallbacksImpl::create(request).leakPtr());
210    return request;
211}
212
213WebIDBDatabase* IDBIndex::backendDB() const
214{
215    return m_transaction->backendDB();
216}
217
218bool IDBIndex::isDeleted() const
219{
220    return m_deleted || m_objectStore->isDeleted();
221}
222
223} // namespace WebCore
224