Developer Feature: Add Debug Accelerators to Toggle Touchscreen/Touchpad On or Off (CrOS)

ui/events/devices/x11/device_data_manager_x11.cc

 // 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.
 
 #include "ui/events/devices/x11/device_data_manager_x11.h"
 
 #include <X11/extensions/XInput.h>
 #include <X11/extensions/XInput2.h>
 #include <X11/Xlib.h>
 
@@ skipping 724 matching lines @@
       blocked_keyboards_.find(deviceid);
   if (it != blocked_keyboards_.end()) {
     std::vector<KeyboardDevice> devices = keyboard_devices();
     // Add device to current list of active devices.
     devices.push_back((*it).second);
     blocked_keyboards_.erase(it);
     DeviceDataManager::OnKeyboardDevicesUpdated(devices);
   }
 }
 
+bool DeviceDataManagerX11::IsDeviceEnabled(int device_id) const {
+  return blocked_devices_.test(device_id);
+}
+
 bool DeviceDataManagerX11::IsEventBlocked(
     const base::NativeEvent& native_event) {
   // Only check XI2 events which have a source device id.
   if (native_event->type != GenericEvent)
     return false;
 
   XIDeviceEvent* xievent =
       static_cast<XIDeviceEvent*>(native_event->xcookie.data);
   // Allow any key events from blocked_keyboard_allowed_keys_.
   if (blocked_keyboard_allowed_keys_ &&
@@ skipping 25 matching lines @@
     } else {
       keyboards.erase(it);
       ++blocked_iter;
     }
   }
   // Notify base class of updated list.
   DeviceDataManager::OnKeyboardDevicesUpdated(keyboards);
 }
 
 }  // namespace ui