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/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