shaka-packager/base/message_loop/message_pump_ozone.h

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1.7 KiB
C++

// Copyright (c) 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef BASE_MESSAGE_LOOP_MESSAGE_PUMP_OZONE_H_
#define BASE_MESSAGE_LOOP_MESSAGE_PUMP_OZONE_H_
#include "base/memory/scoped_ptr.h"
#include "base/memory/scoped_vector.h"
#include "base/message_loop/message_pump_dispatcher.h"
#include "base/message_loop/message_pump_libevent.h"
#include "base/message_loop/message_pump_observer.h"
#include "base/observer_list.h"
namespace base {
// This class implements a message-pump for processing events from input devices
// Refer to MessagePump for further documentation.
class BASE_EXPORT MessagePumpOzone : public MessagePumpLibevent,
public MessagePumpDispatcher {
public:
MessagePumpOzone();
virtual ~MessagePumpOzone();
// Returns the UI message pump.
static MessagePumpOzone* Current();
// Add/Remove the root window dispatcher.
void AddDispatcherForRootWindow(MessagePumpDispatcher* dispatcher);
void RemoveDispatcherForRootWindow(MessagePumpDispatcher* dispatcher);
void RunWithDispatcher(Delegate* delegate, MessagePumpDispatcher* dispatcher);
// Add / remove an Observer, which will start receiving notifications
// immediately.
void AddObserver(MessagePumpObserver* observer);
void RemoveObserver(MessagePumpObserver* observer);
// Overridden from MessagePumpDispatcher.
virtual bool Dispatch(const NativeEvent& event) OVERRIDE;
private:
std::vector<MessagePumpDispatcher*> dispatcher_;
DISALLOW_COPY_AND_ASSIGN(MessagePumpOzone);
};
typedef MessagePumpOzone MessagePumpForUI;
} // namespace base
#endif // BASE_MESSAGE_LOOP_MESSAGE_PUMP_OZONE_H_