ash/touch/touch_uma.h

   1 // Copyright (c) 2012 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 ASH_TOUCH_TOUCH_OBSERVER_UMA_H_
   6 #define ASH_TOUCH_TOUCH_OBSERVER_UMA_H_
   7
   8 #include <map>
   9
  10 #include "ash/shell.h"
  11 #include "base/memory/singleton.h"
  12 #include "ui/gfx/geometry/point.h"
  13 #include "ui/views/widget/widget.h"
  14
  15 namespace aura {
  16 class Window;
  17 }
  18
  19 namespace ash {
  20
  21 // Records some touch/gesture event specific details (e.g. what gestures are
  22 // targetted to which components etc.)
  23 class ASH_EXPORT TouchUMA {
  24  public:
  25   enum GestureActionType {
  26     GESTURE_UNKNOWN,
  27     GESTURE_OMNIBOX_PINCH,
  28     GESTURE_OMNIBOX_SCROLL,
  29     GESTURE_TABSTRIP_PINCH,
  30     GESTURE_TABSTRIP_SCROLL,
  31     GESTURE_BEZEL_SCROLL,
  32     GESTURE_DESKTOP_SCROLL,
  33     GESTURE_DESKTOP_PINCH,
  34     GESTURE_WEBPAGE_PINCH,
  35     GESTURE_WEBPAGE_SCROLL,
  36     GESTURE_WEBPAGE_TAP,
  37     GESTURE_TABSTRIP_TAP,
  38     GESTURE_BEZEL_DOWN,
  39     GESTURE_TABSWITCH_TAP,
  40     GESTURE_TABNOSWITCH_TAP,
  41     GESTURE_TABCLOSE_TAP,
  42     GESTURE_NEWTAB_TAP,
  43     GESTURE_ROOTVIEWTOP_TAP,
  44     GESTURE_FRAMEMAXIMIZE_TAP,
  45     GESTURE_FRAMEVIEW_TAP,
  46     GESTURE_MAXIMIZE_DOUBLETAP,
  47     // NOTE: Add new action types only immediately above this line. Also,
  48     // make sure the enum list in tools/histogram/histograms.xml is
  49     // updated with any change in here.
  50     GESTURE_ACTION_COUNT
  51   };
  52
  53   // Returns the singleton instance.
  54   static TouchUMA* GetInstance();
  55
  56   void RecordGestureEvent(aura::Window* target,
  57                           const ui::GestureEvent& event);
  58   void RecordGestureAction(GestureActionType action);
  59   void RecordTouchEvent(aura::Window* target,
  60                         const ui::TouchEvent& event);
  61
  62  private:
  63   friend struct base::DefaultSingletonTraits<TouchUMA>;
  64
  65   TouchUMA();
  66   ~TouchUMA();
  67
  68   void UpdateTouchState(const ui::TouchEvent& event);
  69   GestureActionType FindGestureActionType(aura::Window* window,
  70                                           const ui::GestureEvent& event);
  71
  72   bool is_single_finger_gesture_;
  73   // These are used to measure the number of touch-start events we receive in a
  74   // quick succession, regardless of the target window.
  75   bool touch_in_progress_;
  76   int burst_length_;
  77   base::TimeDelta last_touch_down_time_;
  78
  79   DISALLOW_COPY_AND_ASSIGN(TouchUMA);
  80 };
  81
  82 }  // namespace ash
  83
  84 #endif  // ASH_TOUCH_TOUCH_OBSERVER_UMA_H_