ui/events/ozone/evdev/input_device_factory_evdev.h

   1 // Copyright 2014 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 UI_EVENTS_OZONE_EVDEV_INPUT_DEVICE_FACTORY_EVDEV_H_
   6 #define UI_EVENTS_OZONE_EVDEV_INPUT_DEVICE_FACTORY_EVDEV_H_
   7
   8 #include <map>
   9 #include <set>
  10 #include <vector>
  11
  12 #include "base/callback.h"
  13 #include "base/compiler_specific.h"
  14 #include "base/files/file_path.h"
  15 #include "base/memory/ref_counted.h"
  16 #include "base/task_runner.h"
  17 #include "ui/events/ozone/evdev/event_converter_evdev.h"
  18 #include "ui/events/ozone/evdev/event_device_info.h"
  19 #include "ui/events/ozone/evdev/events_ozone_evdev_export.h"
  20 #include "ui/events/ozone/evdev/input_device_settings_evdev.h"
  21
  22 namespace ui {
  23
  24 class CursorDelegateEvdev;
  25 class DeviceEventDispatcherEvdev;
  26 class InputDeviceFactoryEvdevProxy;
  27
  28 #if !defined(USE_EVDEV)
  29 #error Missing dependency on ui/events/ozone:events_ozone_evdev
  30 #endif
  31
  32 #if defined(USE_EVDEV_GESTURES)
  33 class GesturePropertyProvider;
  34 #endif
  35
  36 typedef base::Callback<void(scoped_ptr<std::string>)> GetTouchDeviceStatusReply;
  37 typedef base::Callback<void(scoped_ptr<std::vector<base::FilePath>>)>
  38     GetTouchEventLogReply;
  39
  40 // Manager for event device objects. All device I/O starts here.
  41 class EVENTS_OZONE_EVDEV_EXPORT InputDeviceFactoryEvdev {
  42  public:
  43   InputDeviceFactoryEvdev(scoped_ptr<DeviceEventDispatcherEvdev> dispatcher,
  44                           CursorDelegateEvdev* cursor);
  45   ~InputDeviceFactoryEvdev();
  46
  47   // Open & start reading a newly plugged-in input device.
  48   void AddInputDevice(int id, const base::FilePath& path);
  49
  50   // Stop reading & close an unplugged input device.
  51   void RemoveInputDevice(const base::FilePath& path);
  52
  53   // Disables the internal touchpad.
  54   void DisableInternalTouchpad();
  55
  56   // Enables the internal touchpad.
  57   void EnableInternalTouchpad();
  58
  59   // Disables all keys on the internal keyboard except |excepted_keys|.
  60   void DisableInternalKeyboardExceptKeys(
  61       scoped_ptr<std::set<DomCode>> excepted_keys);
  62
  63   // Enables all keys on the internal keyboard.
  64   void EnableInternalKeyboard();
  65
  66   // LED state.
  67   void SetCapsLockLed(bool enabled);
  68
  69   // Bits from InputController that have to be answered on IO.
  70   void UpdateInputDeviceSettings(const InputDeviceSettingsEvdev& settings);
  71   void GetTouchDeviceStatus(const GetTouchDeviceStatusReply& reply);
  72   void GetTouchEventLog(const base::FilePath& out_dir,
  73                         const GetTouchEventLogReply& reply);
  74
  75   base::WeakPtr<InputDeviceFactoryEvdev> GetWeakPtr();
  76
  77  private:
  78   // Open device at path & starting processing events (on UI thread).
  79   void AttachInputDevice(scoped_ptr<EventConverterEvdev> converter);
  80
  81   // Close device at path (on UI thread).
  82   void DetachInputDevice(const base::FilePath& file_path);
  83
  84   // Sync input_device_settings_ to attached devices.
  85   void ApplyInputDeviceSettings();
  86   void ApplyCapsLockLed();
  87
  88   // Update observers on device changes.
  89   void UpdateDirtyFlags(const EventConverterEvdev* converter);
  90   void NotifyDevicesUpdated();
  91   void NotifyKeyboardsUpdated();
  92   void NotifyTouchscreensUpdated();
  93   void NotifyMouseDevicesUpdated();
  94   void NotifyTouchpadDevicesUpdated();
  95
  96   void SetIntPropertyForOneType(const EventDeviceType type,
  97                                 const std::string& name,
  98                                 int value);
  99   void SetBoolPropertyForOneType(const EventDeviceType type,
 100                                  const std::string& name,
 101                                  bool value);
 102
 103   // Owned per-device event converters (by path).
 104   std::map<base::FilePath, EventConverterEvdev*> converters_;
 105
 106   // Task runner for our thread.
 107   scoped_refptr<base::TaskRunner> task_runner_;
 108
 109   // Cursor movement.
 110   CursorDelegateEvdev* cursor_;
 111
 112 #if defined(USE_EVDEV_GESTURES)
 113   // Gesture library property provider (used by touchpads/mice).
 114   scoped_ptr<GesturePropertyProvider> gesture_property_provider_;
 115 #endif
 116
 117   // Dispatcher for events.
 118   scoped_ptr<DeviceEventDispatcherEvdev> dispatcher_;
 119
 120   // Number of pending device additions & device classes.
 121   int pending_device_changes_;
 122   bool touchscreen_list_dirty_;
 123   bool keyboard_list_dirty_;
 124   bool mouse_list_dirty_;
 125   bool touchpad_list_dirty_;
 126
 127   // LEDs.
 128   bool caps_lock_led_enabled_;
 129
 130   // Device settings. These primarily affect libgestures behavior.
 131   InputDeviceSettingsEvdev input_device_settings_;
 132
 133   // Support weak pointers for attach & detach callbacks.
 134   base::WeakPtrFactory<InputDeviceFactoryEvdev> weak_ptr_factory_;
 135
 136   DISALLOW_COPY_AND_ASSIGN(InputDeviceFactoryEvdev);
 137 };
 138
 139 }  // namespace ui
 140
 141 #endif  // UI_EVENTS_OZONE_EVDEV_INPUT_DEVICE_FACTORY_EVDEV_H_