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 "core/dom/ExceptionCode.h" 31 #include "core/dom/ScriptExecutionContext.h" 32 #include "modules/indexeddb/IDBKey.h" 33 #include "modules/indexeddb/IDBKeyRange.h" 34 #include "modules/indexeddb/IDBObjectStore.h" 35 #include "modules/indexeddb/IDBRequest.h" 36 #include "modules/indexeddb/IDBTracing.h" 37 #include "modules/indexeddb/IDBTransaction.h" 38 39 namespace WebCore { 40 41 static const unsigned short defaultDirection = IndexedDB::CursorNext; 42 43 IDBIndex::IDBIndex(const IDBIndexMetadata& metadata, IDBObjectStore* objectStore, IDBTransaction* transaction) 44 : m_metadata(metadata) 45 , m_objectStore(objectStore) 46 , m_transaction(transaction) 47 , m_deleted(false) 48 { 49 ASSERT(m_objectStore); 50 ASSERT(m_transaction); 51 ASSERT(m_metadata.id != IDBIndexMetadata::InvalidId); 52 ScriptWrappable::init(this); 53 } 54 55 IDBIndex::~IDBIndex() 56 { 57 } 58 59 PassRefPtr<IDBRequest> IDBIndex::openCursor(ScriptExecutionContext* context, PassRefPtr<IDBKeyRange> keyRange, const String& directionString, ExceptionState& es) 60 { 61 IDB_TRACE("IDBIndex::openCursor"); 62 if (isDeleted()) { 63 es.throwDOMException(InvalidStateError, IDBDatabase::indexDeletedErrorMessage); 64 return 0; 65 } 66 if (m_transaction->isFinished()) { 67 es.throwDOMException(TransactionInactiveError, IDBDatabase::transactionFinishedErrorMessage); 68 return 0; 69 } 70 if (!m_transaction->isActive()) { 71 es.throwDOMException(TransactionInactiveError, IDBDatabase::transactionInactiveErrorMessage); 72 return 0; 73 } 74 IndexedDB::CursorDirection direction = IDBCursor::stringToDirection(directionString, es); 75 if (es.hadException()) 76 return 0; 77 78 RefPtr<IDBRequest> request = IDBRequest::create(context, IDBAny::create(this), m_transaction.get()); 79 request->setCursorDetails(IndexedDB::CursorKeyAndValue, direction); 80 backendDB()->openCursor(m_transaction->id(), m_objectStore->id(), m_metadata.id, keyRange, direction, false, IDBDatabaseBackendInterface::NormalTask, request); 81 return request; 82 } 83 84 PassRefPtr<IDBRequest> IDBIndex::openCursor(ScriptExecutionContext* context, const ScriptValue& key, const String& direction, ExceptionState& es) 85 { 86 IDB_TRACE("IDBIndex::openCursor"); 87 RefPtr<IDBKeyRange> keyRange = IDBKeyRange::only(context, key, es); 88 if (es.hadException()) 89 return 0; 90 return openCursor(context, keyRange.release(), direction, es); 91 } 92 93 PassRefPtr<IDBRequest> IDBIndex::count(ScriptExecutionContext* context, PassRefPtr<IDBKeyRange> keyRange, ExceptionState& es) 94 { 95 IDB_TRACE("IDBIndex::count"); 96 if (isDeleted()) { 97 es.throwDOMException(InvalidStateError, IDBDatabase::indexDeletedErrorMessage); 98 return 0; 99 } 100 if (m_transaction->isFinished()) { 101 es.throwDOMException(TransactionInactiveError, IDBDatabase::transactionFinishedErrorMessage); 102 return 0; 103 } 104 if (!m_transaction->isActive()) { 105 es.throwDOMException(TransactionInactiveError, IDBDatabase::transactionInactiveErrorMessage); 106 return 0; 107 } 108 RefPtr<IDBRequest> request = IDBRequest::create(context, IDBAny::create(this), m_transaction.get()); 109 backendDB()->count(m_transaction->id(), m_objectStore->id(), m_metadata.id, keyRange, request); 110 return request; 111 } 112 113 PassRefPtr<IDBRequest> IDBIndex::count(ScriptExecutionContext* context, const ScriptValue& key, ExceptionState& es) 114 { 115 IDB_TRACE("IDBIndex::count"); 116 RefPtr<IDBKeyRange> keyRange = IDBKeyRange::only(context, key, es); 117 if (es.hadException()) 118 return 0; 119 return count(context, keyRange.release(), es); 120 } 121 122 PassRefPtr<IDBRequest> IDBIndex::openKeyCursor(ScriptExecutionContext* context, PassRefPtr<IDBKeyRange> keyRange, const String& directionString, ExceptionState& es) 123 { 124 IDB_TRACE("IDBIndex::openKeyCursor"); 125 if (isDeleted()) { 126 es.throwDOMException(InvalidStateError, IDBDatabase::indexDeletedErrorMessage); 127 return 0; 128 } 129 if (m_transaction->isFinished()) { 130 es.throwDOMException(TransactionInactiveError, IDBDatabase::transactionFinishedErrorMessage); 131 return 0; 132 } 133 if (!m_transaction->isActive()) { 134 es.throwDOMException(TransactionInactiveError, IDBDatabase::transactionInactiveErrorMessage); 135 return 0; 136 } 137 IndexedDB::CursorDirection direction = IDBCursor::stringToDirection(directionString, es); 138 if (es.hadException()) 139 return 0; 140 141 RefPtr<IDBRequest> request = IDBRequest::create(context, IDBAny::create(this), m_transaction.get()); 142 request->setCursorDetails(IndexedDB::CursorKeyOnly, direction); 143 backendDB()->openCursor(m_transaction->id(), m_objectStore->id(), m_metadata.id, keyRange, direction, true, IDBDatabaseBackendInterface::NormalTask, request); 144 return request; 145 } 146 147 PassRefPtr<IDBRequest> IDBIndex::openKeyCursor(ScriptExecutionContext* context, const ScriptValue& key, const String& direction, ExceptionState& es) 148 { 149 IDB_TRACE("IDBIndex::openKeyCursor"); 150 RefPtr<IDBKeyRange> keyRange = IDBKeyRange::only(context, key, es); 151 if (es.hadException()) 152 return 0; 153 return openKeyCursor(context, keyRange.release(), direction, es); 154 } 155 156 PassRefPtr<IDBRequest> IDBIndex::get(ScriptExecutionContext* context, const ScriptValue& key, ExceptionState& es) 157 { 158 IDB_TRACE("IDBIndex::get"); 159 RefPtr<IDBKeyRange> keyRange = IDBKeyRange::only(context, key, es); 160 if (es.hadException()) 161 return 0; 162 return get(context, keyRange.release(), es); 163 } 164 165 PassRefPtr<IDBRequest> IDBIndex::get(ScriptExecutionContext* context, PassRefPtr<IDBKeyRange> keyRange, ExceptionState& es) 166 { 167 IDB_TRACE("IDBIndex::get"); 168 if (isDeleted()) { 169 es.throwDOMException(InvalidStateError, IDBDatabase::indexDeletedErrorMessage); 170 return 0; 171 } 172 if (m_transaction->isFinished()) { 173 es.throwDOMException(TransactionInactiveError, IDBDatabase::transactionFinishedErrorMessage); 174 return 0; 175 } 176 if (!m_transaction->isActive()) { 177 es.throwDOMException(TransactionInactiveError, IDBDatabase::transactionInactiveErrorMessage); 178 return 0; 179 } 180 if (!keyRange) { 181 es.throwDOMException(DataError, IDBDatabase::noKeyOrKeyRangeErrorMessage); 182 return 0; 183 } 184 185 RefPtr<IDBRequest> request = IDBRequest::create(context, IDBAny::create(this), m_transaction.get()); 186 backendDB()->get(m_transaction->id(), m_objectStore->id(), m_metadata.id, keyRange, false, request); 187 return request; 188 } 189 190 PassRefPtr<IDBRequest> IDBIndex::getKey(ScriptExecutionContext* context, const ScriptValue& key, ExceptionState& es) 191 { 192 IDB_TRACE("IDBIndex::getKey"); 193 RefPtr<IDBKeyRange> keyRange = IDBKeyRange::only(context, key, es); 194 if (es.hadException()) 195 return 0; 196 197 return getKey(context, keyRange.release(), es); 198 } 199 200 PassRefPtr<IDBRequest> IDBIndex::getKey(ScriptExecutionContext* context, PassRefPtr<IDBKeyRange> keyRange, ExceptionState& es) 201 { 202 IDB_TRACE("IDBIndex::getKey"); 203 if (isDeleted()) { 204 es.throwDOMException(InvalidStateError, IDBDatabase::indexDeletedErrorMessage); 205 return 0; 206 } 207 if (m_transaction->isFinished()) { 208 es.throwDOMException(TransactionInactiveError, IDBDatabase::transactionFinishedErrorMessage); 209 return 0; 210 } 211 if (!m_transaction->isActive()) { 212 es.throwDOMException(TransactionInactiveError, IDBDatabase::transactionInactiveErrorMessage); 213 return 0; 214 } 215 if (!keyRange) { 216 es.throwDOMException(DataError, IDBDatabase::noKeyOrKeyRangeErrorMessage); 217 return 0; 218 } 219 220 RefPtr<IDBRequest> request = IDBRequest::create(context, IDBAny::create(this), m_transaction.get()); 221 backendDB()->get(m_transaction->id(), m_objectStore->id(), m_metadata.id, keyRange, true, request); 222 return request; 223 } 224 225 IDBDatabaseBackendInterface* IDBIndex::backendDB() const 226 { 227 return m_transaction->backendDB(); 228 } 229 230 bool IDBIndex::isDeleted() const 231 { 232 return m_deleted || m_objectStore->isDeleted(); 233 } 234 235 } // namespace WebCore 236