media/base/user_input_monitor_mac.cc

   1 // Copyright 2013 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 #include "media/base/user_input_monitor.h"
   6
   7 #include <ApplicationServices/ApplicationServices.h>
   8
   9 namespace media {
  10 namespace {
  11
  12 class UserInputMonitorMac : public UserInputMonitor {
  13  public:
  14   UserInputMonitorMac();
  15   virtual ~UserInputMonitorMac();
  16
  17   virtual size_t GetKeyPressCount() const OVERRIDE;
  18
  19  private:
  20   virtual void StartKeyboardMonitoring() OVERRIDE;
  21   virtual void StopKeyboardMonitoring() OVERRIDE;
  22   virtual void StartMouseMonitoring() OVERRIDE;
  23   virtual void StopMouseMonitoring() OVERRIDE;
  24
  25   DISALLOW_COPY_AND_ASSIGN(UserInputMonitorMac);
  26 };
  27
  28 UserInputMonitorMac::UserInputMonitorMac() {}
  29
  30 UserInputMonitorMac::~UserInputMonitorMac() {}
  31
  32 size_t UserInputMonitorMac::GetKeyPressCount() const {
  33   // Use |kCGEventSourceStateHIDSystemState| since we only want to count
  34   // hardware generated events.
  35   return CGEventSourceCounterForEventType(kCGEventSourceStateHIDSystemState,
  36                                           kCGEventKeyDown);
  37 }
  38
  39 void UserInputMonitorMac::StartKeyboardMonitoring() {}
  40
  41 void UserInputMonitorMac::StopKeyboardMonitoring() {}
  42
  43 // TODO(jiayl): add the impl.
  44 void UserInputMonitorMac::StartMouseMonitoring() { NOTIMPLEMENTED(); }
  45
  46 // TODO(jiayl): add the impl.
  47 void UserInputMonitorMac::StopMouseMonitoring() { NOTIMPLEMENTED(); }
  48
  49 }  // namespace
  50
  51 scoped_ptr<UserInputMonitor> UserInputMonitor::Create(
  52     const scoped_refptr<base::SingleThreadTaskRunner>& input_task_runner,
  53     const scoped_refptr<base::SingleThreadTaskRunner>& ui_task_runner) {
  54   return scoped_ptr<UserInputMonitor>(new UserInputMonitorMac());
  55 }
  56
  57 }  // namespace media