ozone: evdev: Add gamepad support

ui/events/ozone/evdev/device_event_dispatcher_evdev.h

 // Copyright 2015 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_DEVICE_EVENT_DISPATCHER_H_
 #define UI_EVENTS_OZONE_EVDEV_DEVICE_EVENT_DISPATCHER_H_
 
 #include <vector>
 
 #include "base/time/time.h"
@@ skipping 132 matching lines @@
   ~TouchEventParams();
 
   int device_id;
   int slot;
   EventType type;
   gfx::PointF location;
   PointerDetails pointer_details;
   base::TimeTicks timestamp;
 };
 
+struct EVENTS_OZONE_EVDEV_EXPORT GamepadEventParams {
+  GamepadEventParams(int device_id,
+                     EventType type,
+                     double value,
+                     uint16_t code,
+                     const base::TimeTicks timestamp);
+  int device_id;
+  EventType type;
+  double value;
+  uint16_t code;
+  base::TimeTicks timestamp;
+};
+
 // Interface used by device objects for event dispatch.
 class EVENTS_OZONE_EVDEV_EXPORT DeviceEventDispatcherEvdev {
  public:
   DeviceEventDispatcherEvdev() {}
   virtual ~DeviceEventDispatcherEvdev() {}
 
   // User input events.
+  virtual void DispatchGamepadEvent(const GamepadEventParams& params) = 0;
   virtual void DispatchKeyEvent(const KeyEventParams& params) = 0;
   virtual void DispatchMouseMoveEvent(const MouseMoveEventParams& params) = 0;
   virtual void DispatchMouseButtonEvent(
       const MouseButtonEventParams& params) = 0;
   virtual void DispatchMouseWheelEvent(const MouseWheelEventParams& params) = 0;
   virtual void DispatchPinchEvent(const PinchEventParams& params) = 0;
   virtual void DispatchScrollEvent(const ScrollEventParams& params) = 0;
   virtual void DispatchTouchEvent(const TouchEventParams& params) = 0;
 
   // Device lifecycle events.
+  virtual void DispatchGamepadDevicesUpdated(
+      const std::vector<InputDevice>& devices) = 0;
   virtual void DispatchKeyboardDevicesUpdated(
       const std::vector<InputDevice>& devices) = 0;
   virtual void DispatchTouchscreenDevicesUpdated(
       const std::vector<TouchscreenDevice>& devices) = 0;
   virtual void DispatchMouseDevicesUpdated(
       const std::vector<InputDevice>& devices) = 0;
   virtual void DispatchTouchpadDevicesUpdated(
       const std::vector<InputDevice>& devices) = 0;
   virtual void DispatchDeviceListsComplete() = 0;
   virtual void DispatchStylusStateChanged(StylusState stylus_state) = 0;
 };
 
 }  // namespace ui
 
 #endif  // UI_EVENTS_OZONE_EVDEV_DEVICE_EVENT_DISPATCHER_H_