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/core/v8/ExceptionState.h" 30 #include "bindings/modules/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/IDBObjectStore.h" 36 #include "modules/indexeddb/IDBTracing.h" 37 #include "modules/indexeddb/IDBTransaction.h" 38 #include "modules/indexeddb/WebIDBCallbacksImpl.h" 39 #include "public/platform/WebIDBKeyRange.h" 40 41 using blink::WebIDBCallbacks; 42 using blink::WebIDBCursor; 43 using blink::WebIDBDatabase; 44 45 namespace blink { 46 47 IDBIndex::IDBIndex(const IDBIndexMetadata& metadata, IDBObjectStore* objectStore, IDBTransaction* transaction) 48 : m_metadata(metadata) 49 , m_objectStore(objectStore) 50 , m_transaction(transaction) 51 , m_deleted(false) 52 { 53 ASSERT(m_objectStore); 54 ASSERT(m_transaction); 55 ASSERT(m_metadata.id != IDBIndexMetadata::InvalidId); 56 } 57 58 IDBIndex::~IDBIndex() 59 { 60 } 61 62 void IDBIndex::trace(Visitor* visitor) 63 { 64 visitor->trace(m_objectStore); 65 visitor->trace(m_transaction); 66 } 67 68 ScriptValue IDBIndex::keyPath(ScriptState* scriptState) const 69 { 70 return idbAnyToScriptValue(scriptState, IDBAny::create(m_metadata.keyPath)); 71 } 72 73 IDBRequest* IDBIndex::openCursor(ScriptState* scriptState, const ScriptValue& range, const String& directionString, ExceptionState& exceptionState) 74 { 75 IDB_TRACE("IDBIndex::openCursor"); 76 if (isDeleted()) { 77 exceptionState.throwDOMException(InvalidStateError, IDBDatabase::indexDeletedErrorMessage); 78 return 0; 79 } 80 if (m_transaction->isFinished() || m_transaction->isFinishing()) { 81 exceptionState.throwDOMException(TransactionInactiveError, IDBDatabase::transactionFinishedErrorMessage); 82 return 0; 83 } 84 if (!m_transaction->isActive()) { 85 exceptionState.throwDOMException(TransactionInactiveError, IDBDatabase::transactionInactiveErrorMessage); 86 return 0; 87 } 88 WebIDBCursorDirection direction = IDBCursor::stringToDirection(directionString, exceptionState); 89 if (exceptionState.hadException()) 90 return 0; 91 92 IDBKeyRange* keyRange = IDBKeyRange::fromScriptValue(scriptState->executionContext(), range, exceptionState); 93 if (exceptionState.hadException()) 94 return 0; 95 96 if (!backendDB()) { 97 exceptionState.throwDOMException(InvalidStateError, IDBDatabase::databaseClosedErrorMessage); 98 return 0; 99 } 100 101 return openCursor(scriptState, keyRange, direction); 102 } 103 104 IDBRequest* IDBIndex::openCursor(ScriptState* scriptState, IDBKeyRange* keyRange, WebIDBCursorDirection direction) 105 { 106 IDBRequest* request = IDBRequest::create(scriptState, IDBAny::create(this), m_transaction.get()); 107 request->setCursorDetails(IndexedDB::CursorKeyAndValue, direction); 108 backendDB()->openCursor(m_transaction->id(), m_objectStore->id(), m_metadata.id, keyRange, direction, false, WebIDBTaskTypeNormal, WebIDBCallbacksImpl::create(request).leakPtr()); 109 return request; 110 } 111 112 IDBRequest* IDBIndex::count(ScriptState* scriptState, const ScriptValue& range, ExceptionState& exceptionState) 113 { 114 IDB_TRACE("IDBIndex::count"); 115 if (isDeleted()) { 116 exceptionState.throwDOMException(InvalidStateError, IDBDatabase::indexDeletedErrorMessage); 117 return 0; 118 } 119 if (m_transaction->isFinished() || m_transaction->isFinishing()) { 120 exceptionState.throwDOMException(TransactionInactiveError, IDBDatabase::transactionFinishedErrorMessage); 121 return 0; 122 } 123 if (!m_transaction->isActive()) { 124 exceptionState.throwDOMException(TransactionInactiveError, IDBDatabase::transactionInactiveErrorMessage); 125 return 0; 126 } 127 128 IDBKeyRange* keyRange = IDBKeyRange::fromScriptValue(scriptState->executionContext(), range, exceptionState); 129 if (exceptionState.hadException()) 130 return 0; 131 132 if (!backendDB()) { 133 exceptionState.throwDOMException(InvalidStateError, IDBDatabase::databaseClosedErrorMessage); 134 return 0; 135 } 136 137 IDBRequest* request = IDBRequest::create(scriptState, IDBAny::create(this), m_transaction.get()); 138 backendDB()->count(m_transaction->id(), m_objectStore->id(), m_metadata.id, keyRange, WebIDBCallbacksImpl::create(request).leakPtr()); 139 return request; 140 } 141 142 IDBRequest* IDBIndex::openKeyCursor(ScriptState* scriptState, const ScriptValue& range, const String& directionString, ExceptionState& exceptionState) 143 { 144 IDB_TRACE("IDBIndex::openKeyCursor"); 145 if (isDeleted()) { 146 exceptionState.throwDOMException(InvalidStateError, IDBDatabase::indexDeletedErrorMessage); 147 return 0; 148 } 149 if (m_transaction->isFinished() || m_transaction->isFinishing()) { 150 exceptionState.throwDOMException(TransactionInactiveError, IDBDatabase::transactionFinishedErrorMessage); 151 return 0; 152 } 153 if (!m_transaction->isActive()) { 154 exceptionState.throwDOMException(TransactionInactiveError, IDBDatabase::transactionInactiveErrorMessage); 155 return 0; 156 } 157 WebIDBCursorDirection direction = IDBCursor::stringToDirection(directionString, exceptionState); 158 if (exceptionState.hadException()) 159 return 0; 160 161 IDBKeyRange* keyRange = IDBKeyRange::fromScriptValue(scriptState->executionContext(), range, exceptionState); 162 if (exceptionState.hadException()) 163 return 0; 164 if (!backendDB()) { 165 exceptionState.throwDOMException(InvalidStateError, IDBDatabase::databaseClosedErrorMessage); 166 return 0; 167 } 168 169 IDBRequest* request = IDBRequest::create(scriptState, IDBAny::create(this), m_transaction.get()); 170 request->setCursorDetails(IndexedDB::CursorKeyOnly, direction); 171 backendDB()->openCursor(m_transaction->id(), m_objectStore->id(), m_metadata.id, keyRange, direction, true, WebIDBTaskTypeNormal, WebIDBCallbacksImpl::create(request).leakPtr()); 172 return request; 173 } 174 175 IDBRequest* IDBIndex::get(ScriptState* scriptState, const ScriptValue& key, ExceptionState& exceptionState) 176 { 177 IDB_TRACE("IDBIndex::get"); 178 return getInternal(scriptState, key, exceptionState, false); 179 } 180 181 IDBRequest* IDBIndex::getKey(ScriptState* scriptState, const ScriptValue& key, ExceptionState& exceptionState) 182 { 183 IDB_TRACE("IDBIndex::getKey"); 184 return getInternal(scriptState, key, exceptionState, true); 185 } 186 187 IDBRequest* IDBIndex::getInternal(ScriptState* scriptState, const ScriptValue& key, ExceptionState& exceptionState, bool keyOnly) 188 { 189 if (isDeleted()) { 190 exceptionState.throwDOMException(InvalidStateError, IDBDatabase::indexDeletedErrorMessage); 191 return 0; 192 } 193 if (m_transaction->isFinished() || m_transaction->isFinishing()) { 194 exceptionState.throwDOMException(TransactionInactiveError, IDBDatabase::transactionFinishedErrorMessage); 195 return 0; 196 } 197 if (!m_transaction->isActive()) { 198 exceptionState.throwDOMException(TransactionInactiveError, IDBDatabase::transactionInactiveErrorMessage); 199 return 0; 200 } 201 202 IDBKeyRange* keyRange = IDBKeyRange::fromScriptValue(scriptState->executionContext(), key, exceptionState); 203 if (exceptionState.hadException()) 204 return 0; 205 if (!keyRange) { 206 exceptionState.throwDOMException(DataError, IDBDatabase::noKeyOrKeyRangeErrorMessage); 207 return 0; 208 } 209 if (!backendDB()) { 210 exceptionState.throwDOMException(InvalidStateError, IDBDatabase::databaseClosedErrorMessage); 211 return 0; 212 } 213 214 IDBRequest* request = IDBRequest::create(scriptState, IDBAny::create(this), m_transaction.get()); 215 backendDB()->get(m_transaction->id(), m_objectStore->id(), m_metadata.id, keyRange, keyOnly, WebIDBCallbacksImpl::create(request).leakPtr()); 216 return request; 217 } 218 219 WebIDBDatabase* IDBIndex::backendDB() const 220 { 221 return m_transaction->backendDB(); 222 } 223 224 bool IDBIndex::isDeleted() const 225 { 226 return m_deleted || m_objectStore->isDeleted(); 227 } 228 229 } // namespace blink 230