1 files changed, 193 insertions, 0 deletions
diff --git a/WebKit/chromium/src/WorkerFileWriterCallbacksBridge.cpp b/WebKit/chromium/src/WorkerFileWriterCallbacksBridge.cpp
new file mode 100644
index 0000000..827c011
--- /dev/null
+++ b/WebKit/chromium/src/WorkerFileWriterCallbacksBridge.cpp
@@ -0,0 +1,193 @@
+/*
+ * 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:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * 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.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
+ * OWNER OR 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 "WorkerFileWriterCallbacksBridge.h"
+
+#if ENABLE(FILE_SYSTEM)
+
+#include "AsyncFileWriterClient.h"
+#include "CrossThreadTask.h"
+#include "WebCString.h"
+#include "WebFileSystem.h"
+#include "WebFileWriter.h"
+#include "WebKit.h"
+#include "WebKitClient.h"
+#include "WebWorkerBase.h"
+#include "WorkerContext.h"
+#include "WorkerLoaderProxy.h"
+#include "WorkerThread.h"
+#include <wtf/MainThread.h>
+#include <wtf/Threading.h>
+
+using namespace WebCore;
+
+namespace WebKit {
+
+void WorkerFileWriterCallbacksBridge::notifyStop()
+{
+    ASSERT(m_workerContext->isContextThread());
+    m_clientOnWorkerThread = 0;
+}
+
+void WorkerFileWriterCallbacksBridge::postWriteToMainThread(long long position, const KURL& data)
+{
+    dispatchTaskToMainThread(createCallbackTask(&writeOnMainThread, this, position, data));
+}
+
+void WorkerFileWriterCallbacksBridge::postTruncateToMainThread(long long length)
+{
+    dispatchTaskToMainThread(createCallbackTask(&truncateOnMainThread, this, length));
+}
+
+void WorkerFileWriterCallbacksBridge::postAbortToMainThread()
+{
+    dispatchTaskToMainThread(createCallbackTask(&abortOnMainThread, this));
+}
+
+void WorkerFileWriterCallbacksBridge::postShutdownToMainThread(PassRefPtr<WorkerFileWriterCallbacksBridge> bridge)
+{
+    ASSERT(m_workerContext->isContextThread());
+    m_clientOnWorkerThread = 0;
+    dispatchTaskToMainThread(createCallbackTask(&shutdownOnMainThread, bridge));
+}
+
+void WorkerFileWriterCallbacksBridge::writeOnMainThread(ScriptExecutionContext*, PassRefPtr<WorkerFileWriterCallbacksBridge> bridge, long long position, const KURL& data)
+{
+    bridge->m_writer->write(position, WebURL(data));
+}
+
+void WorkerFileWriterCallbacksBridge::truncateOnMainThread(ScriptExecutionContext*, PassRefPtr<WorkerFileWriterCallbacksBridge> bridge, long long length)
+{
+    bridge->m_writer->truncate(length);
+}
+
+void WorkerFileWriterCallbacksBridge::abortOnMainThread(ScriptExecutionContext*, PassRefPtr<WorkerFileWriterCallbacksBridge> bridge)
+{
+    bridge->m_writer->cancel();
+}
+
+void WorkerFileWriterCallbacksBridge::initOnMainThread(ScriptExecutionContext*, PassRefPtr<WorkerFileWriterCallbacksBridge> bridge, const String& path)
+{
+    ASSERT(!bridge->m_writer);
+    bridge->m_writer = webKitClient()->fileSystem()->createFileWriter(path, bridge.get());
+}
+
+void WorkerFileWriterCallbacksBridge::shutdownOnMainThread(ScriptExecutionContext*, PassRefPtr<WorkerFileWriterCallbacksBridge> bridge)
+{
+    bridge->m_writerDeleted = true;
+    bridge->m_writer.clear();
+}
+
+void WorkerFileWriterCallbacksBridge::didWrite(long long bytes, bool complete)
+{
+    dispatchTaskToWorkerThread(createCallbackTask(&didWriteOnWorkerThread, this, bytes, complete));
+}
+
+void WorkerFileWriterCallbacksBridge::didFail(WebFileError error)
+{
+    dispatchTaskToWorkerThread(createCallbackTask(&didFailOnWorkerThread, this, error));
+}
+
+void WorkerFileWriterCallbacksBridge::didTruncate()
+{
+    dispatchTaskToWorkerThread(createCallbackTask(&didTruncateOnWorkerThread, this));
+}
+
+WorkerFileWriterCallbacksBridge::WorkerFileWriterCallbacksBridge(const String& path, WorkerLoaderProxy* proxy, ScriptExecutionContext* scriptExecutionContext, AsyncFileWriterClient* client)
+    : WorkerContext::Observer(static_cast<WorkerContext*>(scriptExecutionContext))
+    , m_proxy(proxy)
+    , m_workerContext(scriptExecutionContext)
+    , m_clientOnWorkerThread(client)
+    , m_writerDeleted(false)
+{
+    ASSERT(m_workerContext->isContextThread());
+    postInitToMainThread(path);
+}
+
+void WorkerFileWriterCallbacksBridge::postInitToMainThread(const String& path)
+{
+    dispatchTaskToMainThread(createCallbackTask(&initOnMainThread, this, path));
+}
+
+WorkerFileWriterCallbacksBridge::~WorkerFileWriterCallbacksBridge()
+{
+    ASSERT(!m_clientOnWorkerThread);
+    ASSERT(!m_writer);
+}
+
+// We know m_clientOnWorkerThread is still valid because it is only cleared on the context thread, and because we check in runTaskOnWorkerThread before calling any of these methods.
+void WorkerFileWriterCallbacksBridge::didWriteOnWorkerThread(ScriptExecutionContext*, PassRefPtr<WorkerFileWriterCallbacksBridge> bridge, long long length, bool complete)
+{
+    ASSERT(bridge->m_workerContext->isContextThread());
+    bridge->m_clientOnWorkerThread->didWrite(length, complete);
+}
+
+void WorkerFileWriterCallbacksBridge::didFailOnWorkerThread(ScriptExecutionContext*, PassRefPtr<WorkerFileWriterCallbacksBridge> bridge, WebFileError error)
+{
+    ASSERT(bridge->m_workerContext->isContextThread());
+    bridge->m_clientOnWorkerThread->didFail(static_cast<FileError::ErrorCode>(error));
+}
+
+void WorkerFileWriterCallbacksBridge::didTruncateOnWorkerThread(ScriptExecutionContext*, PassRefPtr<WorkerFileWriterCallbacksBridge> bridge)
+{
+    ASSERT(bridge->m_workerContext->isContextThread());
+    bridge->m_clientOnWorkerThread->didTruncate();
+}
+
+void WorkerFileWriterCallbacksBridge::runTaskOnMainThread(ScriptExecutionContext* scriptExecutionContext, PassRefPtr<WorkerFileWriterCallbacksBridge> bridge, PassOwnPtr<ScriptExecutionContext::Task> taskToRun)
+{
+    ASSERT(isMainThread());
+    if (!bridge->m_writerDeleted)
+        taskToRun->performTask(scriptExecutionContext);
+}
+
+void WorkerFileWriterCallbacksBridge::runTaskOnWorkerThread(ScriptExecutionContext* scriptExecutionContext, PassRefPtr<WorkerFileWriterCallbacksBridge> bridge, PassOwnPtr<ScriptExecutionContext::Task> taskToRun)
+{
+    ASSERT(bridge->m_workerContext->isContextThread());
+    if (bridge->m_clientOnWorkerThread)
+        taskToRun->performTask(scriptExecutionContext);
+}
+
+void WorkerFileWriterCallbacksBridge::dispatchTaskToMainThread(PassOwnPtr<ScriptExecutionContext::Task> task)
+{
+    ASSERT(m_workerContext->isContextThread());
+    WebWorkerBase::dispatchTaskToMainThread(createCallbackTask(&runTaskOnMainThread, this, task));
+}
+
+void WorkerFileWriterCallbacksBridge::dispatchTaskToWorkerThread(PassOwnPtr<ScriptExecutionContext::Task> task)
+{
+    ASSERT(isMainThread());
+    m_proxy->postTaskForModeToWorkerContext(createCallbackTask(&runTaskOnWorkerThread, this, task), WorkerRunLoop::defaultMode());
+}
+
+}
+
+#endif // ENABLE(FILE_SYSTEM)