68 lines
2.4 KiB
C++
68 lines
2.4 KiB
C++
/*
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* Copyright 2010, The Android Open Source Project
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* Copyright (C) 2012 Samsung Electronics. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include "DOMWindow.h"
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#include "Event.h"
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#include "Supplementable.h"
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#include "Timer.h"
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#include <wtf/HashCountedSet.h>
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namespace WebCore {
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class DeviceClient;
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class Page;
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class DeviceController : public Supplement<Page> {
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WTF_MAKE_FAST_ALLOCATED;
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public:
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explicit DeviceController(DeviceClient&);
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virtual ~DeviceController() = default;
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void addDeviceEventListener(DOMWindow&);
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void removeDeviceEventListener(DOMWindow&);
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void removeAllDeviceEventListeners(DOMWindow&);
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bool hasDeviceEventListener(DOMWindow&) const;
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void dispatchDeviceEvent(Event&);
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bool isActive() { return !m_listeners.isEmpty(); }
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DeviceClient& client() { return m_client; }
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virtual bool hasLastData() { return false; }
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virtual RefPtr<Event> getLastEvent() { return nullptr; }
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protected:
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void fireDeviceEvent();
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HashCountedSet<RefPtr<DOMWindow>> m_listeners;
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HashCountedSet<RefPtr<DOMWindow>> m_lastEventListeners;
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DeviceClient& m_client;
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Timer m_timer;
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};
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} // namespace WebCore
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