ui/events/ozone/evdev/event_converter_evdev_impl.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_EVENT_CONVERTER_EVDEV_IMPL_H_
   6 #define UI_EVENTS_OZONE_EVDEV_EVENT_CONVERTER_EVDEV_IMPL_H_
   7
   8 #include <set>
   9
  10 #include "base/files/file_path.h"
  11 #include "base/message_loop/message_pump_libevent.h"
  12 #include "ui/events/devices/input_device.h"
  13 #include "ui/events/event.h"
  14 #include "ui/events/ozone/evdev/cursor_delegate_evdev.h"
  15 #include "ui/events/ozone/evdev/event_converter_evdev.h"
  16 #include "ui/events/ozone/evdev/event_device_info.h"
  17 #include "ui/events/ozone/evdev/event_modifiers_evdev.h"
  18 #include "ui/events/ozone/evdev/events_ozone_evdev_export.h"
  19 #include "ui/events/ozone/evdev/keyboard_evdev.h"
  20 #include "ui/events/ozone/evdev/mouse_button_map_evdev.h"
  21
  22 struct input_event;
  23
  24 namespace ui {
  25
  26 class DeviceEventDispatcherEvdev;
  27
  28 class EVENTS_OZONE_EVDEV_EXPORT EventConverterEvdevImpl
  29     : public EventConverterEvdev {
  30  public:
  31   EventConverterEvdevImpl(int fd,
  32                           base::FilePath path,
  33                           int id,
  34                           InputDeviceType type,
  35                           const EventDeviceInfo& info,
  36                           CursorDelegateEvdev* cursor,
  37                           DeviceEventDispatcherEvdev* dispatcher);
  38   ~EventConverterEvdevImpl() override;
  39
  40   // EventConverterEvdev:
  41   void OnFileCanReadWithoutBlocking(int fd) override;
  42   bool HasKeyboard() const override;
  43   bool HasTouchpad() const override;
  44   void SetAllowedKeys(scoped_ptr<std::set<DomCode>> allowed_keys) override;
  45   void AllowAllKeys() override;
  46
  47   void ProcessEvents(const struct input_event* inputs, int count);
  48
  49  private:
  50   void ConvertKeyEvent(const input_event& input);
  51
  52   void ConvertMouseMoveEvent(const input_event& input);
  53
  54   void DispatchMouseButton(const input_event& input);
  55
  56   // Flush events delimited by EV_SYN. This is useful for handling
  57   // non-axis-aligned movement properly.
  58   void FlushEvents();
  59
  60   // Input modalities for this device.
  61   bool has_keyboard_;
  62   bool has_touchpad_;
  63
  64   // Save x-axis events of relative devices to be flushed at EV_SYN time.
  65   int x_offset_;
  66
  67   // Save y-axis events of relative devices to be flushed at EV_SYN time.
  68   int y_offset_;
  69
  70   // Controller for watching the input fd.
  71   base::MessagePumpLibevent::FileDescriptorWatcher controller_;
  72
  73   // The keys which should be processed. nullptr if all keys should be
  74   // processed.
  75   scoped_ptr<std::set<DomCode>> allowed_keys_;
  76
  77   // Shared cursor state.
  78   CursorDelegateEvdev* cursor_;
  79
  80   // Callbacks for dispatching events.
  81   DeviceEventDispatcherEvdev* dispatcher_;
  82
  83   DISALLOW_COPY_AND_ASSIGN(EventConverterEvdevImpl);
  84 };
  85
  86 }  // namespace ui
  87
  88 #endif  // UI_EVENTS_OZONE_EVDEV_EVENT_CONVERTER_EVDEV_IMPL_H_
  89