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-rw-r--r--WebCore/fileapi/DOMFileSystem.h112
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diff --git a/WebCore/fileapi/DOMFileSystem.h b/WebCore/fileapi/DOMFileSystem.h
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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:
- *
- * * 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.
- */
-
-#ifndef DOMFileSystem_h
-#define DOMFileSystem_h
-
-#if ENABLE(FILE_SYSTEM)
-
-#include "ActiveDOMObject.h"
-#include "DOMFileSystemBase.h"
-#include "ScriptExecutionContext.h"
-
-namespace WebCore {
-
-class DirectoryEntry;
-class File;
-class FileCallback;
-class FileEntry;
-class FileWriterCallback;
-
-class DOMFileSystem : public DOMFileSystemBase, public ActiveDOMObject {
-public:
- static PassRefPtr<DOMFileSystem> create(ScriptExecutionContext* context, const String& name, PassOwnPtr<AsyncFileSystem> asyncFileSystem)
- {
- return adoptRef(new DOMFileSystem(context, name, asyncFileSystem));
- }
-
- PassRefPtr<DirectoryEntry> root();
-
- // ActiveDOMObject methods.
- virtual void stop();
- virtual bool hasPendingActivity() const;
- virtual void contextDestroyed();
-
- void createWriter(const FileEntry*, PassRefPtr<FileWriterCallback>, PassRefPtr<ErrorCallback>);
- void createFile(const FileEntry*, PassRefPtr<FileCallback>, PassRefPtr<ErrorCallback>);
-
- // Schedule a callback. This should not cross threads (should be called on the same context thread).
- // FIXME: move this to a more generic place.
- template <typename CB, typename CBArg>
- static void scheduleCallback(ScriptExecutionContext*, PassRefPtr<CB>, PassRefPtr<CBArg>);
-
- template <typename CB, typename CBArg>
- void scheduleCallback(PassRefPtr<CB> callback, PassRefPtr<CBArg> callbackArg)
- {
- scheduleCallback(scriptExecutionContext(), callback, callbackArg);
- }
-
-private:
- DOMFileSystem(ScriptExecutionContext*, const String& name, PassOwnPtr<AsyncFileSystem>);
-
- // A helper template to schedule a callback task.
- template <typename CB, typename CBArg>
- class DispatchCallbackTask : public ScriptExecutionContext::Task {
- public:
- DispatchCallbackTask(PassRefPtr<CB> callback, PassRefPtr<CBArg> arg)
- : m_callback(callback)
- , m_callbackArg(arg)
- {
- }
-
- virtual void performTask(ScriptExecutionContext*)
- {
- m_callback->handleEvent(m_callbackArg.get());
- }
-
- private:
- RefPtr<CB> m_callback;
- RefPtr<CBArg> m_callbackArg;
- };
-};
-
-template <typename CB, typename CBArg>
-void DOMFileSystem::scheduleCallback(ScriptExecutionContext* scriptExecutionContext, PassRefPtr<CB> callback, PassRefPtr<CBArg> arg)
-{
- ASSERT(scriptExecutionContext->isContextThread());
- ASSERT(callback);
- scriptExecutionContext->postTask(new DispatchCallbackTask<CB, CBArg>(callback, arg));
-}
-
-} // namespace
-
-#endif // ENABLE(FILE_SYSTEM)
-
-#endif // DOMFileSystem_h