Merge WebKit at r75315: Initial merge by git.

Change-Id: I570314b346ce101c935ed22a626b48c2af266b84

1 files changed, 175 insertions, 0 deletions

diff --git a/Source/WebCore/storage/IDBTransaction.cpp b/Source/WebCore/storage/IDBTransaction.cpp
new file mode 100644
index 0000000..e3625d4
--- /dev/null
+++ b/Source/WebCore/storage/IDBTransaction.cpp
@@ -0,0 +1,175 @@
+/*
+ * 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 "IDBTransaction.h"
+
+#if ENABLE(INDEXED_DATABASE)
+
+#include "Event.h"
+#include "EventException.h"
+#include "IDBAbortEvent.h"
+#include "IDBCompleteEvent.h"
+#include "IDBDatabase.h"
+#include "IDBDatabaseException.h"
+#include "IDBIndex.h"
+#include "IDBObjectStore.h"
+#include "IDBObjectStoreBackendInterface.h"
+#include "IDBPendingTransactionMonitor.h"
+#include "IDBTimeoutEvent.h"
+#include "ScriptExecutionContext.h"
+
+namespace WebCore {
+
+IDBTransaction::IDBTransaction(ScriptExecutionContext* context, PassRefPtr<IDBTransactionBackendInterface> backend, IDBDatabase* db)
+    : ActiveDOMObject(context, this)
+    , m_backend(backend)
+    , m_database(db)
+    , m_mode(m_backend->mode())
+    , m_onAbortTimer(this, &IDBTransaction::onAbortTimerFired)
+    , m_onCompleteTimer(this, &IDBTransaction::onCompleteTimerFired)
+    , m_onTimeoutTimer(this, &IDBTransaction::onTimeoutTimerFired)
+{
+    IDBPendingTransactionMonitor::addPendingTransaction(m_backend.get());
+}
+
+IDBTransaction::~IDBTransaction()
+{
+}
+
+unsigned short IDBTransaction::mode() const
+{
+    return m_mode;
+}
+
+IDBDatabase* IDBTransaction::db()
+{
+    return m_database.get();
+}
+
+PassRefPtr<IDBObjectStore> IDBTransaction::objectStore(const String& name, ExceptionCode& ec)
+{
+    if (!m_backend) {
+        ec = IDBDatabaseException::NOT_ALLOWED_ERR;
+        return 0;
+    }
+    RefPtr<IDBObjectStoreBackendInterface> objectStoreBackend = m_backend->objectStore(name, ec);
+    if (!objectStoreBackend) {
+        ASSERT(ec);
+        return 0;
+    }
+    RefPtr<IDBObjectStore> objectStore = IDBObjectStore::create(objectStoreBackend, m_backend.get());
+    return objectStore.release();
+}
+
+void IDBTransaction::abort()
+{
+    if (m_backend)
+        m_backend->abort();
+}
+
+ScriptExecutionContext* IDBTransaction::scriptExecutionContext() const
+{
+    return ActiveDOMObject::scriptExecutionContext();
+}
+
+void IDBTransaction::onAbort()
+{
+    ASSERT(!m_onAbortTimer.isActive());
+    ASSERT(!m_onCompleteTimer.isActive());
+    ASSERT(!m_onTimeoutTimer.isActive());
+    m_selfRef = this;
+    m_onAbortTimer.startOneShot(0);
+    m_backend.clear(); // Release the backend as it holds a (circular) reference back to us.
+}
+
+void IDBTransaction::onComplete()
+{
+    ASSERT(!m_onAbortTimer.isActive());
+    ASSERT(!m_onCompleteTimer.isActive());
+    ASSERT(!m_onTimeoutTimer.isActive());
+    m_selfRef = this;
+    m_onCompleteTimer.startOneShot(0);
+    m_backend.clear(); // Release the backend as it holds a (circular) reference back to us.
+}
+
+void IDBTransaction::onTimeout()
+{
+    ASSERT(!m_onAbortTimer.isActive());
+    ASSERT(!m_onCompleteTimer.isActive());
+    ASSERT(!m_onTimeoutTimer.isActive());
+    m_selfRef = this;
+    m_onTimeoutTimer.startOneShot(0);
+    m_backend.clear(); // Release the backend as it holds a (circular) reference back to us.
+}
+
+bool IDBTransaction::canSuspend() const
+{
+    // We may be in the middle of a transaction so we cannot suspend our object.
+    // Instead, we simply don't allow the owner page to go into the back/forward cache.
+    return false;
+}
+
+void IDBTransaction::stop()
+{
+    if (m_backend)
+        m_backend->abort();
+}
+
+EventTargetData* IDBTransaction::eventTargetData()
+{
+    return &m_eventTargetData;
+}
+
+EventTargetData* IDBTransaction::ensureEventTargetData()
+{
+    return &m_eventTargetData;
+}
+
+void IDBTransaction::onAbortTimerFired(Timer<IDBTransaction>* transaction)
+{
+    ASSERT(m_selfRef);
+    RefPtr<IDBTransaction> selfRef = m_selfRef.release();
+    dispatchEvent(IDBAbortEvent::create());
+}
+
+void IDBTransaction::onCompleteTimerFired(Timer<IDBTransaction>* transaction)
+{
+    ASSERT(m_selfRef);
+    RefPtr<IDBTransaction> selfRef = m_selfRef.release();
+    dispatchEvent(IDBCompleteEvent::create());
+}
+
+
+void IDBTransaction::onTimeoutTimerFired(Timer<IDBTransaction>* transaction)
+{
+    ASSERT(m_selfRef);
+    RefPtr<IDBTransaction> selfRef = m_selfRef.release();
+    dispatchEvent(IDBTimeoutEvent::create());
+}
+
+}
+
+#endif // ENABLE(INDEXED_DATABASE)