ozone: evdev: Add gamepad support

services/ui/public/cpp/input_devices/input_device_client.cc

 // Copyright 2016 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 "services/ui/public/cpp/input_devices/input_device_client.h"
 
 #include "base/logging.h"
 
 namespace ui {
 
@@ skipping 21 matching lines @@
 
 const std::vector<ui::InputDevice>& InputDeviceClient::GetMouseDevices() const {
   return mouse_devices_;
 }
 
 const std::vector<ui::InputDevice>& InputDeviceClient::GetTouchpadDevices()
     const {
   return touchpad_devices_;
 }
 
+const std::vector<ui::InputDevice>& InputDeviceClient::GetGamepadDevices()
+    const {
+  return gamepad_devices_;
+}
+
 bool InputDeviceClient::AreDeviceListsComplete() const {
   return device_lists_complete_;
 }
 
 bool InputDeviceClient::AreTouchscreensEnabled() const {
   // TODO(kylechar): This obviously isn't right. We either need to pass this
   // state around or modify the interface.
   return true;
 }
 
@@ skipping 36 matching lines @@
     observer.OnMouseDeviceConfigurationChanged();
 }
 
 void InputDeviceClient::OnTouchpadDeviceConfigurationChanged(
     const std::vector<ui::InputDevice>& devices) {
   touchpad_devices_ = devices;
   for (auto& observer : observers_)
     observer.OnTouchpadDeviceConfigurationChanged();
 }
 
+void InputDeviceClient::OnGamepadDeviceConfigurationChanged(
+    const std::vector<ui::InputDevice>& devices) {
+  gamepad_devices_ = devices;
+  for (auto& observer : observers_)
+    observer.OnGamepadDeviceConfigurationChanged();
+}
+
 void InputDeviceClient::OnDeviceListsComplete(
     const std::vector<ui::InputDevice>& keyboard_devices,
     const std::vector<ui::TouchscreenDevice>& touchscreen_devices,
     const std::vector<ui::InputDevice>& mouse_devices,
-    const std::vector<ui::InputDevice>& touchpad_devices) {
+    const std::vector<ui::InputDevice>& touchpad_devices,
+    const std::vector<ui::InputDevice>& gamepad_devices) {
   // Update the cached device lists if the received list isn't empty.
   if (!keyboard_devices.empty())
     OnKeyboardDeviceConfigurationChanged(keyboard_devices);
   if (!touchscreen_devices.empty())
     OnTouchscreenDeviceConfigurationChanged(touchscreen_devices);
   if (!mouse_devices.empty())
     OnMouseDeviceConfigurationChanged(mouse_devices);
   if (!touchpad_devices.empty())
     OnTouchpadDeviceConfigurationChanged(touchpad_devices);
+  if (!gamepad_devices_.empty())
+    OnGamepadDeviceConfigurationChanged(gamepad_devices_);
 
   if (!device_lists_complete_) {
     device_lists_complete_ = true;
     for (auto& observer : observers_)
       observer.OnDeviceListsComplete();
   }
 }
 
 void InputDeviceClient::OnStylusStateChanged(StylusState state) {
   for (auto& observer : observers_)
     observer.OnStylusStateChanged(state);
 }
 
 }  // namespace ui