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authorSteve Block <steveblock@google.com>2011-05-06 11:45:16 +0100
committerSteve Block <steveblock@google.com>2011-05-12 13:44:10 +0100
commitcad810f21b803229eb11403f9209855525a25d57 (patch)
tree29a6fd0279be608e0fe9ffe9841f722f0f4e4269 /Source/WebCore/storage/IDBDatabase.cpp
parent121b0cf4517156d0ac5111caf9830c51b69bae8f (diff)
downloadexternal_webkit-cad810f21b803229eb11403f9209855525a25d57.zip
external_webkit-cad810f21b803229eb11403f9209855525a25d57.tar.gz
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Merge WebKit at r75315: Initial merge by git.
Change-Id: I570314b346ce101c935ed22a626b48c2af266b84
Diffstat (limited to 'Source/WebCore/storage/IDBDatabase.cpp')
-rw-r--r--Source/WebCore/storage/IDBDatabase.cpp155
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diff --git a/Source/WebCore/storage/IDBDatabase.cpp b/Source/WebCore/storage/IDBDatabase.cpp
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+/*
+ * Copyright (C) 2010 Google Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "IDBDatabase.h"
+
+#include "IDBAny.h"
+#include "IDBDatabaseError.h"
+#include "IDBDatabaseException.h"
+#include "IDBFactoryBackendInterface.h"
+#include "IDBIndex.h"
+#include "IDBObjectStore.h"
+#include "IDBRequest.h"
+#include "IDBTransaction.h"
+#include "ScriptExecutionContext.h"
+#include <limits>
+
+#if ENABLE(INDEXED_DATABASE)
+
+namespace WebCore {
+
+// FIXME: We need to spec this differently.
+const unsigned long defaultTimeout = 0; // Infinite.
+
+IDBDatabase::IDBDatabase(PassRefPtr<IDBDatabaseBackendInterface> backend)
+ : m_backend(backend)
+{
+ // We pass a reference of this object before it can be adopted.
+ relaxAdoptionRequirement();
+}
+
+IDBDatabase::~IDBDatabase()
+{
+}
+
+void IDBDatabase::setSetVersionTransaction(IDBTransactionBackendInterface* transaction)
+{
+ m_setVersionTransaction = transaction;
+}
+
+PassRefPtr<IDBObjectStore> IDBDatabase::createObjectStore(const String& name, const OptionsObject& options, ExceptionCode& ec)
+{
+ if (!m_setVersionTransaction) {
+ ec = IDBDatabaseException::NOT_ALLOWED_ERR;
+ return 0;
+ }
+
+ String keyPath;
+ options.getKeyString("keyPath", keyPath);
+ bool autoIncrement = false;
+ options.getKeyBool("autoIncrement", autoIncrement);
+ // FIXME: Look up evictable and pass that on as well.
+
+ if (autoIncrement) {
+ // FIXME: Implement support for auto increment.
+ ec = IDBDatabaseException::UNKNOWN_ERR;
+ return 0;
+ }
+
+ RefPtr<IDBObjectStoreBackendInterface> objectStore = m_backend->createObjectStore(name, keyPath, autoIncrement, m_setVersionTransaction.get(), ec);
+ if (!objectStore) {
+ ASSERT(ec);
+ return 0;
+ }
+ return IDBObjectStore::create(objectStore.release(), m_setVersionTransaction.get());
+}
+
+void IDBDatabase::deleteObjectStore(const String& name, ExceptionCode& ec)
+{
+ if (!m_setVersionTransaction) {
+ ec = IDBDatabaseException::NOT_ALLOWED_ERR;
+ return;
+ }
+
+ m_backend->deleteObjectStore(name, m_setVersionTransaction.get(), ec);
+}
+
+PassRefPtr<IDBRequest> IDBDatabase::setVersion(ScriptExecutionContext* context, const String& version, ExceptionCode& ec)
+{
+ RefPtr<IDBRequest> request = IDBRequest::create(context, IDBAny::create(this), 0);
+ m_backend->setVersion(version, request, ec);
+ return request;
+}
+
+PassRefPtr<IDBTransaction> IDBDatabase::transaction(ScriptExecutionContext* context, const OptionsObject& options, ExceptionCode& ec)
+{
+ RefPtr<DOMStringList> storeNames = options.getKeyDOMStringList("objectStoreNames");
+ if (!storeNames) {
+ storeNames = DOMStringList::create();
+ String storeName;
+ if (options.getKeyString("objectStoreNames", storeName))
+ storeNames->append(storeName);
+ }
+
+ // Gets cast to an unsigned short.
+ int32_t mode = IDBTransaction::READ_ONLY;
+ options.getKeyInt32("mode", mode);
+ if (mode != IDBTransaction::READ_WRITE && mode != IDBTransaction::READ_ONLY) {
+ // FIXME: May need to change when specced: http://www.w3.org/Bugs/Public/show_bug.cgi?id=11406
+ ec = IDBDatabaseException::CONSTRAINT_ERR;
+ return 0;
+ }
+
+ // Gets cast to an unsigned long.
+ // FIXME: The spec needs to be updated on this. It should probably take a double.
+ int32_t timeout = defaultTimeout;
+ options.getKeyInt32("timeout", timeout);
+ int64_t unsignedLongMax = std::numeric_limits<unsigned long>::max();
+ if (timeout < 0 || timeout > unsignedLongMax)
+ timeout = defaultTimeout; // Ignore illegal values.
+
+ // We need to create a new transaction synchronously. Locks are acquired asynchronously. Operations
+ // can be queued against the transaction at any point. They will start executing as soon as the
+ // appropriate locks have been acquired.
+ // Also note that each backend object corresponds to exactly one IDBTransaction object.
+ RefPtr<IDBTransactionBackendInterface> transactionBackend = m_backend->transaction(storeNames.get(), mode, timeout, ec);
+ if (!transactionBackend) {
+ ASSERT(ec);
+ return 0;
+ }
+ RefPtr<IDBTransaction> transaction = IDBTransaction::create(context, transactionBackend, this);
+ transactionBackend->setCallbacks(transaction.get());
+ return transaction.release();
+}
+
+void IDBDatabase::close()
+{
+ m_backend->close();
+}
+
+} // namespace WebCore
+
+#endif // ENABLE(INDEXED_DATABASE)