base/message_pump_wayland.h

   1 // Copyright (c) 2011 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_WAYLAND_H_
   6 #define BASE_MESSAGE_PUMP_WAYLAND_H_
   7 #pragma once
   8
   9 #include "base/memory/scoped_ptr.h"
  10 #include "base/message_pump_glib.h"
  11 #include "base/message_pump_observer.h"
  12
  13 namespace base {
  14
  15 namespace wayland {
  16 union WaylandEvent;
  17 }
  18
  19 // The documentation for this class is in message_pump_glib.h
  20 //
  21 // The nested loop is exited by either posting a quit, or returning false
  22 // from Dispatch.
  23 class MessagePumpDispatcher {
  24  public:
  25   enum DispatchStatus {
  26     EVENT_IGNORED,    // The event was not processed.
  27     EVENT_PROCESSED,  // The event has been processed.
  28     EVENT_QUIT        // The event was processed and the message-loop should
  29                       // terminate.
  30   };
  31
  32   // Dispatches the event. If true is returned processing continues as
  33   // normal. If false is returned, the nested loop exits immediately.
  34   virtual DispatchStatus Dispatch(wayland::WaylandEvent* event) = 0;
  35
  36  protected:
  37   virtual ~MessagePumpDispatcher() {}
  38 };
  39
  40 typedef MessagePumpGlib MessagePumpForUI;
  41
  42 }  // namespace base
  43
  44 #endif  // BASE_MESSAGE_PUMP_WAYLAND_H_