src/third_party/WebKit/Source/modules/indexeddb/IDBIndex.cpp

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