It is time.

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 EventDeviceInfo;
-class EventModifiersEvdev;
-class CursorDelegateEvdev;
-class KeyboardEvdev;
-class 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,
-                                 EventModifiersEvdev* modifiers,
-                                 CursorDelegateEvdev* cursor,
-                                 KeyboardEvdev* keyboard,
-                                 GesturePropertyProvider* property_provider,
-                                 const EventDispatchCallback& callback);
-  virtual ~GestureInterpreterLibevdevCros();
-
-  // Overriden from ui::EventReaderLibevdevCros::Delegate
-  virtual void OnLibEvdevCrosOpen(Evdev* evdev,
-                                  EventStateRec* evstate) override;
-  virtual void OnLibEvdevCrosEvent(Evdev* evdev,
-                                   EventStateRec* evstate,
-                                   const timeval& time) override;
-
-  // Handler for gesture events generated from libgestures.
-  void OnGestureReady(const Gesture* gesture);
-
-  // Accessors.
-  int id() { return id_; }
-  GesturePropertyProvider* property_provider() { return property_provider_; }
-  Evdev* evdev() { return evdev_; }
-
- private:
-  void OnGestureMove(const Gesture* gesture, const GestureMove* move);
-  void OnGestureScroll(const Gesture* gesture, const GestureScroll* move);
-  void OnGestureButtonsChange(const Gesture* gesture,
-                              const GestureButtonsChange* move);
-  void OnGestureContactInitiated(const Gesture* gesture);
-  void OnGestureFling(const Gesture* gesture, const GestureFling* fling);
-  void OnGestureSwipe(const Gesture* gesture, const GestureSwipe* swipe);
-  void OnGestureSwipeLift(const Gesture* gesture,
-                          const GestureSwipeLift* swipelift);
-  void OnGesturePinch(const Gesture* gesture, const GesturePinch* pinch);
-  void OnGestureMetrics(const Gesture* gesture, const GestureMetrics* metrics);
-
-  void Dispatch(scoped_ptr<Event> event);
-  void DispatchMouseButton(unsigned int modifier, bool down);
-  void DispatchChangedKeys(Evdev* evdev, const timeval& time);
-
-  // The unique device id.
-  int id_;
-
-  // Shared modifier state.
-  EventModifiersEvdev* modifiers_;
-
-  // Shared cursor state.
-  CursorDelegateEvdev* cursor_;
-
-  // Shared keyboard state.
-  KeyboardEvdev* keyboard_;
-
-  // Shared gesture property provider.
-  GesturePropertyProvider* property_provider_;
-
-  // Callback for dispatching events.
-  EventDispatchCallback dispatch_callback_;
-
-  // 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_