base/message_pump_linux.h

   1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef BASE_MESSAGE_PUMP_LINUX_H_
   6 #define BASE_MESSAGE_PUMP_LINUX_H_
   7
   8
   9 #include "base/message_pump.h"
  10
  11 #include "base/memory/scoped_ptr.h"
  12 #include "base/memory/scoped_vector.h"
  13 #include "base/message_pump_dispatcher.h"
  14 #include "base/message_pump_libevent.h"
  15 #include "base/message_pump_observer.h"
  16 #include "base/observer_list.h"
  17
  18 namespace base {
  19
  20 // This class implements a message-pump for processing events from input devices
  21 // Refer to MessagePump for further documentation.
  22 class BASE_EXPORT MessagePumpLinux : public MessagePumpLibevent,
  23                                      public MessagePumpDispatcher {
  24  public:
  25   MessagePumpLinux();
  26   virtual ~MessagePumpLinux();
  27
  28   // Returns the UI message pump.
  29   static MessagePumpLinux* Current();
  30
  31   // Add/Remove the root window dispatcher.
  32   void AddDispatcherForRootWindow(MessagePumpDispatcher* dispatcher);
  33   void RemoveDispatcherForRootWindow(MessagePumpDispatcher* dispatcher);
  34
  35   void RunWithDispatcher(Delegate* delegate, MessagePumpDispatcher* dispatcher);
  36
  37   // Add / remove an Observer, which will start receiving notifications
  38   // immediately.
  39   void AddObserver(MessagePumpObserver* observer);
  40   void RemoveObserver(MessagePumpObserver* observer);
  41
  42   // Overridden from MessagePumpDispatcher.
  43   virtual bool Dispatch(const base::NativeEvent& event) OVERRIDE;
  44
  45  private:
  46   std::vector<MessagePumpDispatcher*> dispatcher_;
  47
  48   DISALLOW_COPY_AND_ASSIGN(MessagePumpLinux);
  49 };
  50
  51 typedef MessagePumpLinux MessagePumpForUI;
  52
  53 }  // namespace base
  54
  55 #endif  // BASE_MESSAGE_PUMP_LINUX_H_