Ability to setup hotkeys to cycle through controllers

src/Ryujinx.Common/Configuration/Hid/KeyboardHotkeys.cs

@@ -1,3 +1,5 @@
+using System.Collections.Generic;
+
 namespace Ryujinx.Common.Configuration.Hid
 {
     public class KeyboardHotkeys
@@ -13,5 +15,6 @@ public class KeyboardHotkeys
         public Key VolumeDown { get; set; }
         public Key CustomVSyncIntervalIncrement { get; set; }
         public Key CustomVSyncIntervalDecrement { get; set; }
+        public List<Key> CycleControllers { get; set; }
     }
 }

src/Ryujinx/AppHost.cs

@@ -36,6 +36,7 @@
 using Ryujinx.HLE.FileSystem;
 using Ryujinx.HLE.HOS;
 using Ryujinx.HLE.HOS.Services.Account.Acc;
+using Ryujinx.HLE.HOS.Services.Hid;
 using Ryujinx.HLE.HOS.SystemState;
 using Ryujinx.Input;
 using Ryujinx.Input.HLE;
@@ -50,6 +51,7 @@
 using System.Collections.Generic;
 using System.Diagnostics;
 using System.IO;
+using System.Linq;
 using System.Runtime.InteropServices;
 using System.Threading;
 using System.Threading.Tasks;
@@ -1332,6 +1334,18 @@ private bool UpdateFrame()
 
                             _viewModel.Volume = Device.GetVolume();
                             break;
+                        case KeyboardHotkeyState.CycleControllersPlayer1:
+                        case KeyboardHotkeyState.CycleControllersPlayer2:
+                        case KeyboardHotkeyState.CycleControllersPlayer3:
+                        case KeyboardHotkeyState.CycleControllersPlayer4:
+                        case KeyboardHotkeyState.CycleControllersPlayer5:
+                        case KeyboardHotkeyState.CycleControllersPlayer6:
+                        case KeyboardHotkeyState.CycleControllersPlayer7:
+                        case KeyboardHotkeyState.CycleControllersPlayer8:
+                            var player = currentHotkeyState - KeyboardHotkeyState.CycleControllersPlayer1;
+                            var ivm = new UI.ViewModels.Input.InputViewModel();
+                            Dispatcher.UIThread.Invoke(() => ivm.CyclePlayerDevice(player));
+                            break;
                         case KeyboardHotkeyState.None:
                             (_keyboardInterface as AvaloniaKeyboard).Clear();
                             break;
@@ -1414,6 +1428,15 @@ private KeyboardHotkeyState GetHotkeyState()
                 state = KeyboardHotkeyState.CustomVSyncIntervalDecrement;
             }
 
+            foreach (var cycle in ConfigurationState.Instance.Hid.Hotkeys.Value.CycleControllers?.Select((value, index) => (value, index)) ?? [])
+            {
+                if (_keyboardInterface.IsPressed((Key)cycle.value))
+                {
+                    state = KeyboardHotkeyState.CycleControllersPlayer1 + cycle.index;
+                    break;
+                }
+            }
+
             return state;
         }
     }

src/Ryujinx/Assets/locales.json

@@ -4989,6 +4989,30 @@
         "zh_TW": "啟用警告日誌"
       }
     },
+    {
+      "ID": "SettingsTabHotkeysCycleControllers",
+      "Translations": {
+        "ar_SA": "",
+        "de_DE": "",
+        "el_GR": "",
+        "en_US": "Cycle Controllers",
+        "es_ES": "",
+        "fr_FR": "",
+        "he_IL": "",
+        "it_IT": "",
+        "ja_JP": "",
+        "ko_KR": "",
+        "no_NO": "",
+        "pl_PL": "",
+        "pt_BR": "",
+        "ru_RU": "",
+        "th_TH": "",
+        "tr_TR": "",
+        "uk_UA": "",
+        "zh_CN": "",
+        "zh_TW": ""
+      }
+    },
     {
       "ID": "SettingsTabLoggingEnableErrorLogs",
       "Translations": {

src/Ryujinx/Common/KeyboardHotkeyState.cs

@@ -14,5 +14,13 @@ public enum KeyboardHotkeyState
         VolumeDown,
         CustomVSyncIntervalIncrement,
         CustomVSyncIntervalDecrement,
+        CycleControllersPlayer1,
+        CycleControllersPlayer2,
+        CycleControllersPlayer3,
+        CycleControllersPlayer4,
+        CycleControllersPlayer5,
+        CycleControllersPlayer6,
+        CycleControllersPlayer7,
+        CycleControllersPlayer8
     }
 }

src/Ryujinx/UI/Models/Input/HotkeyConfig.cs

@@ -1,5 +1,10 @@
+using DynamicData;
+using Ryujinx.Ava.UI.Helpers;
 using Ryujinx.Ava.UI.ViewModels;
 using Ryujinx.Common.Configuration.Hid;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.Windows.Input;
 
 namespace Ryujinx.Ava.UI.Models.Input
 {
@@ -126,8 +131,15 @@ public Key CustomVSyncIntervalDecrement
             }
         }
 
+        public ObservableCollection<CycleController> CycleControllers { get; set; } = new ObservableCollection<CycleController>();
+        public ICommand AddCycleController { get; set; }
+        public ICommand RemoveCycleController { get; set; }
+        public bool CanRemoveCycleController => CycleControllers.Count > 0 && CycleControllers.Count < 8;
+
         public HotkeyConfig(KeyboardHotkeys config)
         {
+            AddCycleController = MiniCommand.Create(() => CycleControllers.Add(new CycleController(CycleControllers.Count + 1, Key.Unbound)));
+            RemoveCycleController = MiniCommand.Create(() => CycleControllers.Remove(CycleControllers.Last()));
             if (config != null)
             {
                 ToggleVSyncMode = config.ToggleVSyncMode;
@@ -141,7 +153,9 @@ public HotkeyConfig(KeyboardHotkeys config)
                 VolumeDown = config.VolumeDown;
                 CustomVSyncIntervalIncrement = config.CustomVSyncIntervalIncrement;
                 CustomVSyncIntervalDecrement = config.CustomVSyncIntervalDecrement;
+                CycleControllers.AddRange((config.CycleControllers ?? []).Select((x, i) => new CycleController(i + 1, x)));
             }
+            CycleControllers.CollectionChanged += (sender, e) => OnPropertyChanged(nameof(CanRemoveCycleController));
         }
 
         public KeyboardHotkeys GetConfig()
@@ -159,6 +173,7 @@ public KeyboardHotkeys GetConfig()
                 VolumeDown = VolumeDown,
                 CustomVSyncIntervalIncrement = CustomVSyncIntervalIncrement,
                 CustomVSyncIntervalDecrement = CustomVSyncIntervalDecrement,
+                CycleControllers = CycleControllers.Select(x => x.Hotkey).ToList()
             };
 
             return config;

src/Ryujinx/UI/ViewModels/CycleController.cs

@@ -0,0 +1,48 @@
+using Ryujinx.Ava.Common.Locale;
+using Ryujinx.Common.Configuration.Hid;
+
+namespace Ryujinx.Ava.UI.ViewModels
+{
+    public class CycleController : BaseModel
+    {
+        private string _player;
+        private Key _hotkey;
+
+        public string Player
+        {
+            get => _player;
+            set
+            {
+                _player = value;
+                OnPropertyChanged(nameof(Player));
+            }
+        }
+
+        public Key Hotkey
+        {
+            get => _hotkey;
+            set
+            {
+                _hotkey = value;
+                OnPropertyChanged(nameof(Hotkey));
+            }
+        }
+
+        public CycleController(int v, Key x)
+        {
+            Player = v switch
+            {
+                1 => LocaleManager.Instance[LocaleKeys.ControllerSettingsPlayer1],
+                2 => LocaleManager.Instance[LocaleKeys.ControllerSettingsPlayer2],
+                3 => LocaleManager.Instance[LocaleKeys.ControllerSettingsPlayer3],
+                4 => LocaleManager.Instance[LocaleKeys.ControllerSettingsPlayer4],
+                5 => LocaleManager.Instance[LocaleKeys.ControllerSettingsPlayer5],
+                6 => LocaleManager.Instance[LocaleKeys.ControllerSettingsPlayer6],
+                7 => LocaleManager.Instance[LocaleKeys.ControllerSettingsPlayer7],
+                8 => LocaleManager.Instance[LocaleKeys.ControllerSettingsPlayer8],
+                _ => LocaleManager.Instance[LocaleKeys.ControllerSettingsPlayer] + " " + v
+            };
+            Hotkey = x;
+        }
+    }
+}

src/Ryujinx/UI/ViewModels/Input/InputViewModel.cs

@@ -266,6 +266,10 @@ public InputViewModel(UserControl owner) : this()
 
         public InputViewModel()
         {
+            _mainWindow =
+                 (MainWindow)((IClassicDesktopStyleApplicationLifetime)Application.Current
+                     .ApplicationLifetime).MainWindow;
+            AvaloniaKeyboardDriver = new AvaloniaKeyboardDriver(_mainWindow);
             PlayerIndexes = new ObservableCollection<PlayerModel>();
             Controllers = new ObservableCollection<ControllerModel>();
             Devices = new ObservableCollection<(DeviceType Type, string Id, string Name)>();
@@ -754,38 +758,34 @@ public async void SaveProfile()
 
                 return;
             }
-            else
-            {
-                bool validFileName = ProfileName.IndexOfAny(Path.GetInvalidFileNameChars()) == -1;
 
-                if (validFileName)
-                {
-                    string path = Path.Combine(GetProfileBasePath(), ProfileName + ".json");
+            bool validFileName = ProfileName.IndexOfAny(Path.GetInvalidFileNameChars()) == -1;
 
-                    InputConfig config = null;
+            if (!validFileName)
+            {
+                await ContentDialogHelper.CreateErrorDialog(LocaleManager.Instance[LocaleKeys.DialogProfileInvalidProfileNameErrorMessage]);
+                return;
+            }
+            string path = Path.Combine(GetProfileBasePath(), ProfileName + ".json");
 
-                    if (IsKeyboard)
-                    {
-                        config = (ConfigViewModel as KeyboardInputViewModel).Config.GetConfig();
-                    }
-                    else if (IsController)
-                    {
-                        config = (ConfigViewModel as ControllerInputViewModel).Config.GetConfig();
-                    }
+            InputConfig config = null;
 
-                    config.ControllerType = Controllers[_controller].Type;
+            if (IsKeyboard)
+            {
+                config = (ConfigViewModel as KeyboardInputViewModel).Config.GetConfig();
+            }
+            else if (IsController)
+            {
+                config = (ConfigViewModel as ControllerInputViewModel).Config.GetConfig();
+            }
 
-                    string jsonString = JsonHelper.Serialize(config, _serializerContext.InputConfig);
+            config.ControllerType = Controllers[_controller].Type;
 
-                    await File.WriteAllTextAsync(path, jsonString);
+            string jsonString = JsonHelper.Serialize(config, _serializerContext.InputConfig);
 
-                    LoadProfiles();
-                }
-                else
-                {
-                    await ContentDialogHelper.CreateErrorDialog(LocaleManager.Instance[LocaleKeys.DialogProfileInvalidProfileNameErrorMessage]);
-                }
-            }
+            await File.WriteAllTextAsync(path, jsonString);
+
+            LoadProfiles();
         }
 
         public async void RemoveProfile()
@@ -899,5 +899,13 @@ public void Dispose()
 
             AvaloniaKeyboardDriver.Dispose();
         }
+
+        public void CyclePlayerDevice(int player)
+        {
+            LoadDevices();
+            PlayerId = (PlayerIndex)player;
+            Device = (Device + 1) % Devices.Count;
+            Save();
+        }
     }
 }