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/*
* Copyright (C) 2010, 2011, 2012 Apple 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 INC. 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 INC. 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.
*/
#pragma once
#include <mutex>
namespace WebCore {
class BlobRegistry;
class LoaderStrategy;
class MediaStrategy;
class PasteboardStrategy;
#if ENABLE(DECLARATIVE_WEB_PUSH)
class PushStrategy;
#endif
class PlatformStrategies {
public:
LoaderStrategy* loaderStrategy()
{
if (!m_loaderStrategy)
m_loaderStrategy = createLoaderStrategy();
return m_loaderStrategy;
}
PasteboardStrategy* pasteboardStrategy()
{
if (!m_pasteboardStrategy)
m_pasteboardStrategy = createPasteboardStrategy();
return m_pasteboardStrategy;
}
MediaStrategy& mediaStrategy()
{
std::call_once(m_onceKeyForMediaStrategies, [&] {
m_mediaStrategy = createMediaStrategy();
});
return *m_mediaStrategy;
}
BlobRegistry* blobRegistry()
{
if (!m_blobRegistry)
m_blobRegistry = createBlobRegistry();
return m_blobRegistry;
}
#if ENABLE(DECLARATIVE_WEB_PUSH)
PushStrategy* pushStrategy()
{
if (!m_pushStrategy)
m_pushStrategy = createPushStrategy();
return m_pushStrategy;
}
#endif
protected:
PlatformStrategies() = default;
virtual ~PlatformStrategies()
{
}
private:
virtual LoaderStrategy* createLoaderStrategy() = 0;
virtual PasteboardStrategy* createPasteboardStrategy() = 0;
virtual MediaStrategy* createMediaStrategy() = 0;
virtual BlobRegistry* createBlobRegistry() = 0;
LoaderStrategy* m_loaderStrategy { };
PasteboardStrategy* m_pasteboardStrategy { };
std::once_flag m_onceKeyForMediaStrategies;
MediaStrategy* m_mediaStrategy { };
BlobRegistry* m_blobRegistry { };
#if ENABLE(DECLARATIVE_WEB_PUSH)
virtual PushStrategy* createPushStrategy() = 0;
PushStrategy* m_pushStrategy { };
#endif
};
bool hasPlatformStrategies();
WEBCORE_EXPORT PlatformStrategies* platformStrategies();
WEBCORE_EXPORT void setPlatformStrategies(PlatformStrategies*);
} // namespace WebCore
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