[PATCH 5/11] ozone: evdev: Replace dispatch callbacks with an interface

ui/events/ozone/evdev/libgestures_glue/gesture_interpreter_libevdev_cros.h

 // Copyright 2014 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 UI_EVENTS_OZONE_EVDEV_LIBGESTURES_GLUE_GESTURE_INTERPRETER_LIBEVDEV_CROS_H_
 #define UI_EVENTS_OZONE_EVDEV_LIBGESTURES_GLUE_GESTURE_INTERPRETER_LIBEVDEV_CROS_H_
 
 #include <gestures/gestures.h>
 #include <libevdev/libevdev.h>
 
 #include "base/callback.h"
 #include "base/memory/scoped_ptr.h"
 #include "ui/events/ozone/evdev/cursor_delegate_evdev.h"
 #include "ui/events/ozone/evdev/event_device_util.h"
 #include "ui/events/ozone/evdev/event_dispatch_callback.h"
 #include "ui/events/ozone/evdev/events_ozone_evdev_export.h"
 #include "ui/events/ozone/evdev/libgestures_glue/event_reader_libevdev_cros.h"
 
 namespace ui {
 
+class DeviceEventDispatcherEvdev;
 class EventDeviceInfo;
 class CursorDelegateEvdev;
 struct GestureDeviceProperties;
 class GesturePropertyProvider;
 
 // Convert libevdev-cros events to ui::Events using libgestures.
 //
 // This builds a GestureInterpreter for an input device (touchpad or
 // mouse).
 //
 // Raw input events must be preprocessed into a form suitable for
 // libgestures. The kernel protocol only emits changes to the device state,
 // so changes must be accumulated until a sync event. The full device state
 // at sync is then processed by libgestures.
 //
 // Once we have the state at sync, we convert it to a HardwareState object
 // and forward it to libgestures. If any gestures are produced, they are
 // converted to ui::Events and dispatched.
 class EVENTS_OZONE_EVDEV_EXPORT GestureInterpreterLibevdevCros
     : public EventReaderLibevdevCros::Delegate {
  public:
-  GestureInterpreterLibevdevCros(
-      int id,
-      CursorDelegateEvdev* cursor,
-      GesturePropertyProvider* property_provider,
-      const KeyEventDispatchCallback& key_callback,
-      const MouseMoveEventDispatchCallback& mouse_move_callback,
-      const MouseButtonEventDispatchCallback& mouse_button_callback,
-      const MouseWheelEventDispatchCallback& mouse_wheel_callback,
-      const ScrollEventDispatchCallback& scroll_callback);
+  GestureInterpreterLibevdevCros(int id,
+                                 CursorDelegateEvdev* cursor,
+                                 GesturePropertyProvider* property_provider,
+                                 DeviceEventDispatcherEvdev* dispatcher);
   ~GestureInterpreterLibevdevCros() override;
 
   // Overriden from ui::EventReaderLibevdevCros::Delegate
   void OnLibEvdevCrosOpen(Evdev* evdev, EventStateRec* evstate) override;
   void OnLibEvdevCrosEvent(Evdev* evdev,
                            EventStateRec* evstate,
                            const timeval& time) override;
   void SetAllowedKeys(
       scoped_ptr<std::set<DomCode>> allowed_keys) override;
   void AllowAllKeys() override;
@@ skipping 32 matching lines @@
   // The evdev codes of the keys which should be processed. nullptr if all keys
   // should be processed.
   scoped_ptr<std::set<int>> allowed_keys_;
 
   // Shared cursor state.
   CursorDelegateEvdev* cursor_;
 
   // Shared gesture property provider.
   GesturePropertyProvider* property_provider_;
 
-  // Callbacks for dispatching events.
-  KeyEventDispatchCallback key_callback_;
-  MouseMoveEventDispatchCallback mouse_move_callback_;
-  MouseButtonEventDispatchCallback mouse_button_callback_;
-  MouseWheelEventDispatchCallback mouse_wheel_callback_;
-  ScrollEventDispatchCallback scroll_callback_;
+  // Dispatcher for events.
+  DeviceEventDispatcherEvdev* dispatcher_;
 
   // Gestures interpretation state.
   gestures::GestureInterpreter* interpreter_;
 
   // Last key state from libevdev.
   unsigned long prev_key_state_[EVDEV_BITS_TO_LONGS(KEY_CNT)];
 
   // Device pointer.
   Evdev* evdev_;
 
   // Gesture lib device properties.
   scoped_ptr<GestureDeviceProperties> device_properties_;
 
   DISALLOW_COPY_AND_ASSIGN(GestureInterpreterLibevdevCros);
 };
 
 }  // namspace ui
 
 #endif  // UI_EVENTS_OZONE_EVDEV_LIBGESTURES_GLUE_GESTURE_INTERPRETER_LIBEVDEV_CROS_H_