AGENTS.md

@@ -388,6 +388,7 @@ tests/
 ├── test_cli.py              # normalize_launch_path, URL/resolution parsing
 ├── test_debug_env_utils.py  # Debug environment helpers, runtime variables
 ├── test_input_manager.py    # Gamepad input navigation and focus regressions
+├── test_sound_manager.py    # UI sound playback, widget events, gamepad connection, theme sound files
 ├── test_main_window.py      # Main window data processing and callback regressions
 ├── test_portproton_config.py # exec_line parsing, launcher tail, extensions
 ├── test_portproton_api.py   # PPDB API helpers, autoinstall localization fallback
@@ -944,6 +945,6 @@ PortProtonQt/
 
 ---
 
-**Last updated:** 2026-06-18
+**Last updated:** 2026-07-20
 **Version:** 1.2
 **Status:** Release

LICENSE

@@ -434,3 +434,20 @@ proprietary programs.  If your program is a subroutine library, you may
 consider it more useful to permit linking proprietary applications with the
 library.  If this is what you want to do, use the GNU Library General
 Public License instead of this License.
+
+=====================================================================
+
+===========================
+= Kenney Interface Sounds =
+===========================
+
+Interface Sounds (1.0)
+
+Created/distributed by Kenney (www.kenney.nl)
+
+License: Creative Commons Zero, CC0
+http://creativecommons.org/publicdomain/zero/1.0/
+
+This content is free to use in personal, educational and commercial projects.
+
+Support us by crediting Kenney or www.kenney.nl (this is not mandatory)

README.md

@@ -68,6 +68,8 @@ PortProtonQt uses code and dependencies from the following projects:
 - [iat](https://sourceforge.net/projects/iat.berlios) — library for converting mdf and nrg to iso, GPLv3 license.
 - [pyte](https://github.com/selectel/pyte) — ANSI escape code parser, [LGPLv3](https://github.com/selectel/pyte?tab=LGPL-3.0-1-ov-file) license.
 - [gjs-osk](https://github.com/Vishram1123/gjs-osk) — base for virtual keyboard layout data, GPLv3 license.
+- [Kenney Interface Sounds](https://kenney.nl/assets/interface-sounds) — UI feedback sound effects, [CC0](https://creativecommons.org/publicdomain/zero/1.0/) license.
+- [Modern Minimal UI Sounds](https://github.com/cadecomposer/modern-minimal-ui-sounds) — gamepad connection sound, [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/) license.
 
 See the [LICENSE](LICENSE) file for the full text of the licenses.
 

documentation/theme_guide/README.md

@@ -26,6 +26,7 @@
   - [Recoloring SVG Icons](#recoloring-svg-icons)
   - [AutoSizeButton State Recoloring](#autosizebutton-state-recoloring)
   - [Non-Inherited Icon Colors](#non-inherited-icon-colors)
+- [Sound Effects](#sound-effects-optional)
 
 ---
 
@@ -78,6 +79,7 @@ my_custom_theme/
 ├── metainfo.ini
 ├── fonts/
 ├── images/
+├── sounds/
 └── styles/
     ├── __init__.py  # This empty file makes the directory a Python package
     ├── constants.py
@@ -142,7 +144,7 @@ THEME_INHERITS = "classic"
 
 If `THEME_INHERITS` is not defined, the theme inherits styles from `standart`.
 
-Fonts, icons, and images also follow the inheritance chain — the first match found walking from child to `standart` wins. If your theme has a `fonts/` directory, it takes priority over the parent's. If it doesn't, the parent's fonts are loaded. Screenshots are the exception — they are loaded only from the current theme, not inherited.
+Fonts, icons, images, and sounds also follow the inheritance chain — the first match found walking from child to `standart` wins. If your theme has a `fonts/` directory, it takes priority over the parent's. Missing sound events fall back individually to the parent theme. Screenshots are the exception — they are loaded only from the current theme, not inherited.
 
 ### How Inheritance Works
 
@@ -742,3 +744,32 @@ When no `ICON_COLORS` entry matches an `AutoSizeButton` state, the button falls
 `ICON_COLORS` is not inherited from parent themes. If a child theme needs SVG recoloring, define its own `ICON_COLORS` dictionary in that theme.
 
 ---
+
+## Sound Effects (optional)
+
+Place UI sound effects in the theme's `sounds/` directory. File names must match an event name; do not add numeric suffixes such as `_001`:
+
+| Event | Used for |
+|---|---|
+| `navigate` | Moving focus between UI items |
+| `click` | Pressing buttons and clickable labels |
+| `confirm` | Confirming an action |
+| `back` | Returning or closing with the Back action |
+| `toggle` | Changing a checkbox or toggle |
+| `open` | Opening pages, dialogs, and menus |
+| `close` | Closing UI elements |
+| `error` | Error feedback |
+| `notification` | Notifications |
+| `keyboard_key` | Virtual keyboard input |
+| `scroll` | Scrolling feedback |
+| `tab_switch` | Switching application tabs |
+| `game_launch` | Successful game process launch |
+| `gamepad_connect` | Connecting a gamepad |
+
+For example, use `sounds/navigate.ogg` or `sounds/navigate.wav`. Supported extensions, in lookup order, are `.ogg`, `.oga`, `.wav`, `.mp3`, `.flac`, `.opus`, `.m4a`, `.aac`, and `.webm`. Availability of a codec at playback time depends on the Qt Multimedia backend installed on the system.
+
+Sounds are inherited per event. A child theme can override only `navigate` and continue using every other sound from its parent. When more than one supported extension exists for the same event in one theme, the first extension in the list above is used.
+
+Theme validation checks the extension, file size, and format signature before a sound is loaded. Sound files larger than 20 MiB, symlinks, files outside the theme directory, and files whose content does not match their extension are rejected. Include the license and attribution required by every sound asset distributed with a theme.
+
+---

documentation/theme_guide/README.ru.md

@@ -26,6 +26,7 @@
   - [Перекраска SVG-иконок](#перекраска-svg-иконок)
   - [Перекраска состояний AutoSizeButton](#перекраска-состояний-autosizebutton)
   - [Ненаследуемые цвета иконок](#ненаследуемые-цвета-иконок)
+- [Звуковые эффекты](#звуковые-эффекты-опционально)
 
 ---
 
@@ -78,6 +79,7 @@ my_custom_theme/
 ├── metainfo.ini
 ├── fonts/
 ├── images/
+├── sounds/
 └── styles/
     ├── __init__.py  # Этот пустой файл делает директорию Python-пакетом
     ├── constants.py
@@ -142,7 +144,7 @@ THEME_INHERITS = "classic"
 
 Если `THEME_INHERITS` не указан, тема наследует стили от `standart`.
 
-Шрифты, иконки и изображения также следуют цепочке наследования — побеждает первое совпадение при обходе от дочерней темы до `standart`. Если в вашей теме есть директория `fonts/`, она имеет приоритет над родительской. Если нет — загружаются шрифты родителя. Скриншоты — исключение: загружаются только из текущей темы, не наследуются.
+Шрифты, иконки, изображения и звуки также следуют цепочке наследования — побеждает первое совпадение при обходе от дочерней темы до `standart`. Если в вашей теме есть директория `fonts/`, она имеет приоритет над родительской. Отсутствующие звуковые события по отдельности загружаются из родительской темы. Скриншоты — исключение: загружаются только из текущей темы, не наследуются.
 
 ### Как работает наследование
 
@@ -742,3 +744,32 @@ ICON_COLORS = {
 `ICON_COLORS` не наследуется от родительских тем. Если дочерней теме нужна перекраска SVG, задайте собственный словарь `ICON_COLORS` в этой теме.
 
 ---
+
+## Звуковые эффекты (опционально)
+
+Поместите звуковые эффекты интерфейса в директорию `sounds/` темы. Имя файла должно совпадать с именем события; не добавляйте числовые суффиксы наподобие `_001`:
+
+| Событие | Назначение |
+|---|---|
+| `navigate` | Перемещение фокуса между элементами интерфейса |
+| `click` | Нажатие кнопок и кликабельных меток |
+| `confirm` | Подтверждение действия |
+| `back` | Возврат или закрытие действием Back |
+| `toggle` | Изменение флажка или переключателя |
+| `open` | Открытие страниц, диалогов и меню |
+| `close` | Закрытие элементов интерфейса |
+| `error` | Сообщение об ошибке |
+| `notification` | Уведомления |
+| `keyboard_key` | Ввод с виртуальной клавиатуры |
+| `scroll` | Обратная связь при прокрутке |
+| `tab_switch` | Переключение вкладок приложения |
+| `game_launch` | Успешный запуск процесса игры |
+| `gamepad_connect` | Подключение геймпада |
+
+Например, используйте `sounds/navigate.ogg` или `sounds/navigate.wav`. Поддерживаемые расширения в порядке поиска: `.ogg`, `.oga`, `.wav`, `.mp3`, `.flac`, `.opus`, `.m4a`, `.aac` и `.webm`. Доступность кодека при воспроизведении зависит от установленного в системе backend Qt Multimedia.
+
+Звуки наследуются отдельно для каждого события. Дочерняя тема может переопределить только `navigate`, продолжая использовать остальные звуки родительской темы. Если в одной теме для события есть несколько поддерживаемых расширений, используется первое расширение из списка выше.
+
+При проверке темы проверяются расширение, размер и сигнатура формата каждого звука. Файлы размером более 20 МиБ, символические ссылки, файлы за пределами директории темы и файлы, содержимое которых не соответствует расширению, отклоняются. Добавляйте лицензию и требуемую атрибуцию для каждого звукового ресурса, распространяемого вместе с темой.
+
+---

portprotonqt/config/ui.py

@@ -446,6 +446,15 @@ class UIConfig(BaseConfig):
         validate_bool(enabled, "enable_theme_store")
         self._save_value("enable_theme_store", enabled, "bool")
 
+    def get_sounds_enabled(self) -> bool:
+        """Get UI sounds enabled setting."""
+        return self._get_bool("sounds_enabled", True)
+
+    def set_sounds_enabled(self, enabled: bool):
+        """Set UI sounds enabled setting."""
+        validate_bool(enabled, "sounds_enabled")
+        self._save_value("sounds_enabled", enabled, "bool")
+
 
 def load_theme_metainfo(theme_name: str) -> dict:
     """Load theme metadata from metainfo.ini."""

portprotonqt/detail_pages/widgets.py

@@ -72,6 +72,7 @@ def create_back_button(
     back_button = AutoSizeButton(_("Back"), icon=theme_manager.get_icon("back", as_path=True))
     back_button.setFixedWidth(100)
     back_button.setStyleSheet(theme.ADDGAME_BACK_BUTTON_STYLE)
+    back_button.setProperty("sound_event", "back")
     back_button.clicked.connect(on_click)
     parent_layout.addWidget(back_button, alignment=Qt.AlignmentFlag.AlignLeft)
     return back_button

portprotonqt/game_card.py

@@ -15,6 +15,7 @@ from PySide6.QtGui import (
 )
 from PySide6.QtCore import Signal, Property, Qt, QUrl, QTimer, QSize
 from PySide6.QtWidgets import (
+    QApplication,
     QFrame,
     QGraphicsDropShadowEffect,
     QGraphicsOpacityEffect,
@@ -958,6 +959,15 @@ class GameCard(QFrame):
         super().leaveEvent(event)
 
     def focusInEvent(self, event):
+        if (
+            QApplication.activeWindow() is not None
+            and event.reason() not in (
+                Qt.FocusReason.ActiveWindowFocusReason,
+                Qt.FocusReason.MouseFocusReason,
+            )
+        ):
+            from portprotonqt.sound_manager import SoundManager
+            SoundManager().play("navigate")
         self.animations.handle_focus_in_event()
         super().focusInEvent(event)
 

portprotonqt/game_library_manager.py

@@ -540,7 +540,7 @@ class GameLibraryManager:
         for card in self.gamesListWidget.findChildren(GameCard):
             if card.isVisible() and card.isEnabled():
                 self._focus_first_card_after_update = False
-                card.setFocus(Qt.FocusReason.OtherFocusReason)
+                card.setFocus(Qt.FocusReason.ActiveWindowFocusReason)
                 if self.gamesScrollArea is not None:
                     self.gamesScrollArea.ensureWidgetVisible(card, 50, 50)
                 return

portprotonqt/input_manager.py

@@ -9,6 +9,7 @@ from PySide6.QtWidgets import QWidget, QStackedWidget, QApplication, QScrollArea
 from PySide6.QtCore import Qt, QObject, QEvent, QPoint, Signal, Slot, QTimer, QThread
 from PySide6.QtGui import QKeySequence
 from portprotonqt.logger import get_logger
+from portprotonqt.sound_manager import SoundManager
 from portprotonqt.image_utils import FullscreenDialog
 from portprotonqt.custom_widgets import NavLabel, AutoSizeButton
 from portprotonqt.game_card import GameCard
@@ -912,11 +913,13 @@ class InputManager(QObject):
         if current_action not in actions:
             target_index = 0 if direction_down else len(actions) - 1
             menu.setActiveAction(actions[target_index])
+            SoundManager().play("navigate")
             return
         current_index = actions.index(current_action)
         step = 1 if direction_down else -1
         next_index = (current_index + step) % len(actions)
         menu.setActiveAction(actions[next_index])
+        SoundManager().play("navigate")
 
     # TABLE NAVIGATION METHODS
     def handle_table_navigation(self, table: QTableWidget, code: int, value: int):
@@ -2779,12 +2782,16 @@ class InputManager(QObject):
                 system_action = getattr(self._parent, "handleSystemTableGamepadAction", None)
                 if callable(system_action):
                     if button_code in BUTTONS['confirm'] and system_action(focused, "confirm"):
+                        SoundManager().play("confirm")
                         return
                     if button_code in BUTTONS['back'] and system_action(focused, "back"):
+                        SoundManager().play("back")
                         return
                     if button_code in BUTTONS['prev_dir'] and system_action(focused, "prev_dir"):
+                        SoundManager().play("click")
                         return
                     if button_code in BUTTONS['add_game'] and system_action(focused, "add_game"):
+                        SoundManager().play("click")
                         return
 
             system_quick_action = getattr(self._parent, "handleSystemGamepadAction", None)
@@ -2793,12 +2800,16 @@ class InputManager(QObject):
                 and button_code in BUTTONS['add_game']
                 and system_quick_action("add_game")
             ):
+                SoundManager().play("open")
                 return
 
             # Standard navigation
             if button_code in BUTTONS['confirm']:
+                if not isinstance(focused, GameCard):
+                    SoundManager().play_widget_sound(focused)
                 self._parent.activateFocusedWidget()
             elif button_code in BUTTONS['back']:
+                SoundManager().play("back")
                 if self._is_theme_store_visible():
                     store_stack = getattr(self._parent, "themeStoreStack", None)
                     detail_page = getattr(self._parent, "themeStoreDetailPage", None)
@@ -2810,6 +2821,7 @@ class InputManager(QObject):
                 self._parent.goBackDetailPage(getattr(self._parent, 'currentDetailPage', None))
             elif button_code in BUTTONS['add_game']:
                 if self._parent.stackedWidget.currentIndex() == 0:
+                    SoundManager().play("open")
                     self._parent.openAddGameDialog()
             elif button_code in BUTTONS['prev_tab']:
                 idx = self._parent.stackedWidget.currentIndex()
@@ -3148,6 +3160,7 @@ class InputManager(QObject):
         if not hasattr(self._parent, 'gamesListWidget') or self._parent.gamesListWidget is None:
             logger.error("gamesListWidget not available yet, skipping D-pad navigation")
             return
+
         try:
 
             app = QApplication.instance()
@@ -3156,6 +3169,8 @@ class InputManager(QObject):
             popup = QApplication.activePopupWidget()
             if not app or not active:
                 return
+            if not isinstance(focused, GameCard):
+                SoundManager().play("navigate")
 
             # Handle QMessageBox navigation with D-pad (for multiple buttons)
             if isinstance(active, QMessageBox) and not isinstance(focused, QTableWidget):
@@ -3508,6 +3523,17 @@ class InputManager(QObject):
         if not app:
             return super().eventFilter(obj, event)
 
+        if event.type() == QEvent.Type.Show:
+            if isinstance(obj, QMenu):
+                SoundManager().play("open")
+            elif isinstance(obj, QWidget) and obj.windowType() == Qt.WindowType.Popup:
+                parent = obj.parent()
+                while isinstance(parent, QObject):
+                    if isinstance(parent, QComboBox):
+                        SoundManager().play("open")
+                        break
+                    parent = parent.parent()
+
         if event.type() == QEvent.Type.Wheel:
             combo = obj if isinstance(obj, QComboBox) else None
             parent = obj.parent() if isinstance(obj, QObject) else None
@@ -3547,6 +3573,12 @@ class InputManager(QObject):
                 self._handle_back_mouse_button()
                 return True
 
+        if event.type() == QEvent.Type.MouseButtonRelease:
+            button_method = getattr(event, "button", None)
+            button = button_method() if callable(button_method) else None
+            if button == Qt.MouseButton.LeftButton:
+                SoundManager().play_widget_sound(obj)
+
         # Ensure obj is a QObject
         if not isinstance(obj, QObject):
             logger.debug(f"Skipping event filter for non-QObject: {type(obj).__name__}")
@@ -3613,6 +3645,7 @@ class InputManager(QObject):
         if isinstance(focused, QLineEdit):
             return
         if isinstance(active_win, QDialog):
+            SoundManager().play("back")
             active_win.reject()
             return
         self._parent.goBackDetailPage(self._parent.currentDetailPage)
@@ -3999,7 +4032,9 @@ class InputManager(QObject):
         self.gamepad_check_timer = QTimer(self)
         self.gamepad_check_timer.setSingleShot(True)
         self.gamepad_check_timer.timeout.connect(self.check_gamepad)
+        self._initial_gamepad_check = True
         self.check_gamepad()
+        self._initial_gamepad_check = False
         if not self.gamepad_thread or not self.gamepad_thread.is_alive():
             self.gamepad_thread = threading.Thread(target=self.monitor_gamepad, daemon=True)
             self.gamepad_thread.start()
@@ -4045,6 +4080,8 @@ class InputManager(QObject):
                 self._last_gamepad_check_time = 0.0
                 self.gamepad_type = self._get_effective_gamepad_type(new_gamepad)
                 self._refresh_gamepad_ui()
+                if not self._initial_gamepad_check:
+                    SoundManager().play("gamepad_connect")
 
                 if display_config.get_auto_fullscreen_gamepad() and not display_config.get_fullscreen():
                     self.toggle_fullscreen.emit(True)
@@ -4365,13 +4402,16 @@ class InputManager(QObject):
         if popup:
             if isinstance(popup, QMessageBox):
                 self._handle_qmessagebox_button(popup, button_code)
+                SoundManager().play("click")
                 return True
             elif isinstance(popup, QMenu):
                 if button_code in BUTTONS['confirm']:
+                    SoundManager().play("click")
                     if popup.activeAction():
                         popup.activeAction().trigger()
                     popup.close()
                 elif button_code in BUTTONS['back']:
+                    SoundManager().play("back")
                     popup.close()
                 return True
 

portprotonqt/main_window.py

@@ -55,6 +55,7 @@ from portprotonqt.tray_manager import TrayManager
 from portprotonqt.game_library_manager import GameLibraryManager
 from portprotonqt.virtual_keyboard import VirtualKeyboard
 from portprotonqt.disc_image_utils import DiscImageManager
+from portprotonqt.sound_manager import SoundManager
 from portprotonqt.tabs.control_hints import MainWindowControlHintsMixin
 from portprotonqt.tabs.autoinstall_tab import MainWindowAutoInstallTabMixin
 from portprotonqt.tabs.library_tab import MainWindowLibraryTabMixin
@@ -410,6 +411,7 @@ class MainWindow(
         self.leftNavButton = NavLabel()
         self.leftNavButton.setFixedSize(32, 32)
         self.leftNavButton.setAlignment(Qt.AlignmentFlag.AlignCenter)
+        self.leftNavButton.setProperty("sound_event", False)
         self.leftNavButton.clicked.connect(lambda: self.switchVisibleTab(-1))
         navLayout.addWidget(self.leftNavButton)
 
@@ -426,6 +428,7 @@ class MainWindow(
         for i, tabName in enumerate(tabs):
             btn = NavLabel(tabName)
             btn.setCheckable(True)
+            btn.setProperty("sound_event", False)
             btn.clicked.connect(lambda index=i: self.switchTab(index))
             btn.setStyleSheet(self.theme.NAV_BUTTON_STYLE)
             navLayout.addWidget(btn)
@@ -437,6 +440,7 @@ class MainWindow(
         self.rightNavButton = NavLabel()
         self.rightNavButton.setFixedSize(32, 32)
         self.rightNavButton.setAlignment(Qt.AlignmentFlag.AlignCenter)
+        self.rightNavButton.setProperty("sound_event", False)
         self.rightNavButton.clicked.connect(lambda: self.switchVisibleTab(1))
         navLayout.addWidget(self.rightNavButton)
 
@@ -1307,6 +1311,7 @@ class MainWindow(
 
     def switchTab(self, index):
         """Set active tab by index."""
+        SoundManager().play("tab_switch")
         # Check if the requested tab index is valid, exists, and is visible
         if (hasattr(self, 'tabButtons') and
             index in self.tabButtons and
@@ -1317,7 +1322,7 @@ class MainWindow(
                 btn.setChecked(i == index)
             self.stackedWidget.setCurrentIndex(index)
             if index == self.auto_install_tab_index:
-                self._start_autoinstall_load()
+                QTimer.singleShot(0, self._start_autoinstall_load)
         else:
             # If trying to switch to a non-existent or hidden tab (like auto-install when it's hidden),
             # find the first visible tab to switch to
@@ -1455,6 +1460,7 @@ class MainWindow(
 
     def openGameDetailPage(self, game_data: dict) -> None:
         """Open game detail page."""
+        SoundManager().play("open")
         logger.debug(
             "Opening detail page for %s from stacked index %d",
             game_data.get("name", ""),
@@ -2333,6 +2339,7 @@ class MainWindow(
                     errors="replace",
                     bufsize=1,
                 )
+                SoundManager().play("game_launch")
                 self.game_processes.append(process)
                 self._start_launch_output_reader(process)
                 self.input_manager.suspend_gamepad_polling()
@@ -2439,6 +2446,7 @@ class MainWindow(
 
     def goBackDetailPage(self, page):
         """Bridge method to detail page manager."""
+        SoundManager().play("back")
         result = self.detail_page_manager.goBackDetailPage(page)
         # The detail page manager will handle the navigation properly
         return result

portprotonqt/meson.build

@@ -25,8 +25,9 @@ install_data(
   'preloader.py',
   'qt_utils.py',
   'search_utils.py',
-  'settings_manager.py',
-  'theme_manager.py',
+   'settings_manager.py',
+   'sound_manager.py',
+   'theme_manager.py',
   'theme_security.py',
   'time_utils.py',
   'tray_manager.py',

portprotonqt/sound_manager.py

@@ -0,0 +1,150 @@
+"""Sound manager for UI feedback sounds, integrated with the theme system."""
+from pathlib import Path
+
+from PySide6.QtCore import QLoggingCategory, QUrl
+
+from portprotonqt.config import ui_config
+from portprotonqt.logger import get_logger
+from portprotonqt.theme_security import SUPPORTED_SOUND_EXTENSIONS, is_safe_sound_file
+
+logger = get_logger(__name__)
+FFMPEG_LOG_RULES = "qt.multimedia.ffmpeg=false\nqt.multimedia.ffmpeg.*=false"
+
+SOUND_EVENTS = frozenset({
+    "navigate", "click", "confirm", "back", "toggle", "open", "close",
+    "error", "notification", "keyboard_key", "scroll", "tab_switch",
+    "game_launch", "gamepad_connect",
+})
+
+
+class _SoundSlot:
+    """A single player slot that pre-loads a sound file."""
+
+    def __init__(self) -> None:
+        from PySide6.QtMultimedia import QAudioOutput, QMediaPlayer
+
+        self._audio = QAudioOutput()
+        self._player = QMediaPlayer()
+        self._player.setAudioOutput(self._audio)
+        self._player.setLoops(QMediaPlayer.Loops.Once)
+        self._player.mediaStatusChanged.connect(self._handle_media_status)
+        self._loaded_event: str | None = None
+
+    def _handle_media_status(self, status: object) -> None:
+        if status == self._player.MediaStatus.EndOfMedia:
+            self._player.stop()
+
+    def play(self, event: str, url: QUrl) -> None:
+        if (
+            self._loaded_event == event
+            and self._player.playbackState() == self._player.PlaybackState.PlayingState
+        ):
+            return
+        if self._loaded_event != event:
+            self._player.setSource(url)
+            self._loaded_event = event
+        self._player.stop()
+        self._player.setPosition(0)
+        self._player.play()
+
+    def reset(self) -> None:
+        self._player.setSource(QUrl())
+        self._loaded_event = None
+
+
+class SoundManager:
+    """Manages UI feedback sounds, loading from theme directories."""
+
+    _instance: "SoundManager | None" = None
+
+    def __new__(cls) -> "SoundManager":
+        if cls._instance is None:
+            cls._instance = super().__new__(cls)
+            cls._instance._initialized = False
+        return cls._instance
+
+    def __init__(self) -> None:
+        if self._initialized:
+            return
+        self._initialized = True
+        QLoggingCategory.setFilterRules(FFMPEG_LOG_RULES)
+        self._enabled = ui_config.get_sounds_enabled()
+        self._sounds_dirs: list[str] = []
+        try:
+            self._slots = [_SoundSlot() for _ in range(4)]
+        except ImportError as e:
+            logger.warning("UI sounds are unavailable: %s", e)
+            self._slots = []
+        self._slot_index = 0
+        self._url_cache: dict[str, QUrl] = {}
+
+    def set_sounds_dirs(self, dirs: list[str]) -> None:
+        if dirs != self._sounds_dirs:
+            self._sounds_dirs = dirs
+            self._url_cache.clear()
+            for slot in self._slots:
+                slot.reset()
+
+    def reload_config(self) -> None:
+        self._enabled = ui_config.get_sounds_enabled()
+
+    def _find_sound_path(self, event: str) -> Path | None:
+        if event not in SOUND_EVENTS:
+            return None
+        for sounds_dir in self._sounds_dirs:
+            for extension in SUPPORTED_SOUND_EXTENSIONS:
+                path = Path(sounds_dir) / f"{event}{extension}"
+                if path.is_file() and is_safe_sound_file(str(path)):
+                    return path
+        return None
+
+    def _get_url(self, event: str) -> QUrl | None:
+        if event in self._url_cache:
+            return self._url_cache[event]
+        path = self._find_sound_path(event)
+        if path is None:
+            return None
+        url = QUrl.fromLocalFile(str(path))
+        self._url_cache[event] = url
+        return url
+
+    def play(self, event: str) -> None:
+        if not self._enabled:
+            return
+        url = self._get_url(event)
+        if url is None or not self._slots:
+            return
+        for slot in self._slots:
+            if slot._loaded_event == event:
+                slot.play(event, url)
+                return
+        slot = self._slots[self._slot_index]
+        self._slot_index = (self._slot_index + 1) % len(self._slots)
+        slot.play(event, url)
+
+    def play_widget_sound(self, widget: object) -> None:
+        from PySide6.QtWidgets import QCheckBox, QComboBox, QPushButton
+        from portprotonqt.custom_widgets import AutoSizeButton, ClickableLabel, NavLabel
+        property_method = getattr(widget, "property", None)
+        sound_event = property_method("sound_event") if callable(property_method) else None
+        if sound_event is False:
+            return
+        if isinstance(sound_event, str) and sound_event in SOUND_EVENTS:
+            self.play(sound_event)
+            return
+        if isinstance(widget, (QPushButton, AutoSizeButton)):
+            self.play("click")
+        elif isinstance(widget, QCheckBox):
+            self.play("toggle")
+        elif isinstance(widget, QComboBox):
+            self.play("open")
+        elif isinstance(widget, (ClickableLabel, NavLabel)):
+            self.play("click")
+
+    def set_enabled(self, enabled: bool) -> None:
+        self._enabled = enabled
+        ui_config.set_sounds_enabled(enabled)
+
+    @property
+    def enabled(self) -> bool:
+        return self._enabled

portprotonqt/tabs/library_tab.py

@@ -154,6 +154,7 @@ class MainWindowLibraryTabMixin(_MainWindowTypingBase):
         self.addGameButton = AutoSizeButton(_("Add a shortcut"), icon=self.theme_manager.get_icon("addgame", as_path=True))
         self.addGameButton.setStyleSheet(self.theme.ADDGAME_BACK_BUTTON_STYLE)
         self.addGameButton.setFocusPolicy(Qt.FocusPolicy.StrongFocus)
+        self.addGameButton.setProperty("sound_event", "open")
         self.addGameButton.clicked.connect(self.openAddGameDialog)
         buttons_layout.addWidget(self.addGameButton)
         buttons_layout.addStretch()

portprotonqt/tabs/settings_tab.py

@@ -295,6 +295,21 @@ class MainWindowSettingsTabMixin(_MainWindowTypingBase):
         hide_autoinstall_layout.addStretch()
         uiForm.addRow(hide_autoinstall_layout)
 
+        self.soundsEnabledCheckBox = QCheckBox()
+        self.soundsEnabledCheckBox.setStyleSheet(self.theme.CHECKBOX_STYLE)
+        self.soundsEnabledCheckBox.setFocusPolicy(Qt.FocusPolicy.StrongFocus)
+        self.soundsEnabledTitle = QLabel(_("Enable UI Sounds"))
+        self.soundsEnabledTitle.setSizePolicy(QSizePolicy.Policy.Fixed, QSizePolicy.Policy.Fixed)
+        self.soundsEnabledTitle.setStyleSheet(self.theme.SETTINGS_TITLE_CHECKBOX_STYLE)
+        self.soundsEnabledTitle.setFocusPolicy(Qt.FocusPolicy.NoFocus)
+        self.soundsEnabledCheckBox.setChecked(ui_config.get_sounds_enabled())
+        sounds_enabled_layout = QHBoxLayout()
+        sounds_enabled_layout.setContentsMargins(0, 0, 0, 0)
+        sounds_enabled_layout.addWidget(self.soundsEnabledCheckBox)
+        sounds_enabled_layout.addWidget(self.soundsEnabledTitle)
+        sounds_enabled_layout.addStretch()
+        uiForm.addRow(sounds_enabled_layout)
+
         disable_runtime_download_layout = None
         if not os.getenv("FLATPAK_ID"):
             self.disableRuntimeDownloadCheckBox = QCheckBox()
@@ -841,6 +856,12 @@ class MainWindowSettingsTabMixin(_MainWindowTypingBase):
         # Save the hide auto-install tab setting to config
         ui_config.set_hide_autoinstall_tab(hide_autoinstall)
 
+        sounds_enabled = self.soundsEnabledCheckBox.isChecked()
+        ui_config.set_sounds_enabled(sounds_enabled)
+
+        from portprotonqt.sound_manager import SoundManager
+        SoundManager().reload_config()
+
     def _apply_gamepad_type_setting(self) -> None:
         """Apply configured gamepad type to current input manager."""
         input_manager = getattr(self, "input_manager", None)

portprotonqt/tabs/system_tab.py

@@ -33,6 +33,7 @@ from portprotonqt.dialogs.base import DraggableDialog
 from portprotonqt.dialogs import FileExplorer
 from portprotonqt.localization import _
 from portprotonqt.logger import get_logger
+from portprotonqt.sound_manager import SoundManager
 from portprotonqt.preloader import Preloader
 from portprotonqt.system_manager import (
     AudioManagerWorker,
@@ -263,6 +264,7 @@ class MainWindowSystemTabMixin(_MainWindowTypingBase):
             button.setCheckable(True)
             button.setStyleSheet(self.theme.ACTION_BUTTON_STYLE)
             button.setFocusPolicy(Qt.FocusPolicy.StrongFocus)
+            button.setProperty("sound_event", False)
             button.clicked.connect(lambda _checked=False, section_index=index: self.switchSystemSection(section_index))
             self.systemSectionButtons.append(button)
             section_switcher_layout.addWidget(button)
@@ -334,7 +336,10 @@ class MainWindowSystemTabMixin(_MainWindowTypingBase):
             return False
         if index < len(self.systemSectionButtons) and not self.systemSectionButtons[index].isVisible():
             return False
+        previous_index = self.systemSectionStack.currentIndex()
         self.systemSectionStack.setCurrentIndex(index)
+        if previous_index != index:
+            SoundManager().play("tab_switch")
         for button_index, button in enumerate(self.systemSectionButtons):
             button.setChecked(button_index == index)
         self._focusCurrentSystemSection(index)

portprotonqt/tabs/theme_store.py

@@ -197,6 +197,7 @@ class ThemeStoreMixin:
         header = QHBoxLayout()
         self.themeStoreBackButton = AutoSizeButton(_("Back"))
         self.themeStoreBackButton.setStyleSheet(self.theme.ACTION_BUTTON_STYLE)
+        self.themeStoreBackButton.setProperty("sound_event", "back")
         self.themeStoreBackButton.clicked.connect(self._show_theme_store_list)
         header.addWidget(self.themeStoreBackButton)
         header.addStretch(1)

portprotonqt/theme_manager.py

@@ -411,6 +411,19 @@ def build_icon_cache(theme_name):
     _icon_dirs_cache[theme_name] = image_map
     return image_map
 
+def _resolve_sound_dirs(theme_name: str) -> list[str]:
+    """Return ordered list of sound directories from theme inheritance chain."""
+    dirs = []
+    for resource_theme_name in _get_theme_resource_chain(theme_name):
+        theme_folder = _find_theme_folder(resource_theme_name)
+        if not theme_folder:
+            continue
+        sounds_dir = os.path.join(theme_folder, "sounds")
+        if os.path.isdir(sounds_dir):
+            dirs.append(sounds_dir)
+    return dirs
+
+
 def load_theme_fonts(theme_name):
     """
     Load all fonts from selected theme if not already loaded.
@@ -804,6 +817,10 @@ class ThemeManager:
         self.current_theme_name = theme_name
         self.current_theme_module = theme_module
         ui_config.set_theme(theme_name)
+
+        from portprotonqt.sound_manager import SoundManager
+        SoundManager().set_sounds_dirs(_resolve_sound_dirs(theme_name))
+
         logger.info(f"Theme '{theme_name}' successfully applied")
         return theme_module
 

portprotonqt/theme_security.py

@@ -11,6 +11,10 @@ from portprotonqt.logger import get_logger
 logger = get_logger(__name__)
 MAX_THEME_PY_FILE_SIZE = 512 * 1024
 MAX_AST_NODES = 20000
+MAX_SOUND_FILE_SIZE = 20 * 1024 * 1024
+SUPPORTED_SOUND_EXTENSIONS = (
+    ".ogg", ".oga", ".wav", ".mp3", ".flac", ".opus", ".m4a", ".aac", ".webm",
+)
 
 
 class ThemeSecurityChecker:
@@ -568,6 +572,9 @@ def check_theme_directory_safety(theme_dir: str, allow_absolute_imports: bool =
             elif filename.endswith((".ttf", ".otf")):
                 if not is_safe_font_file(file_path):
                     return False
+            elif filename.lower().endswith(SUPPORTED_SOUND_EXTENSIONS):
+                if not is_safe_sound_file(file_path):
+                    return False
 
     return True
 
@@ -607,6 +614,45 @@ def is_safe_font_file(file_path: str) -> bool:
     return True
 
 
+def is_safe_sound_file(file_path: str) -> bool:
+    """Check a theme sound extension, size, and file signature."""
+    _, ext = os.path.splitext(file_path.lower())
+    if ext not in SUPPORTED_SOUND_EXTENSIONS:
+        logger.error("Unsafe sound file extension for %s: %s", file_path, ext)
+        return False
+    try:
+        file_size = os.path.getsize(file_path)
+        if file_size > MAX_SOUND_FILE_SIZE:
+            logger.error("Sound file too large (%s bytes): %s", file_size, file_path)
+            return False
+        with open(file_path, "rb") as sound_file:
+            header = sound_file.read(16)
+    except OSError as e:
+        logger.error("Error reading sound file %s: %s", file_path, e)
+        return False
+
+    is_valid = False
+    if ext in (".ogg", ".oga", ".opus"):
+        is_valid = header.startswith(b"OggS")
+    elif ext == ".wav":
+        is_valid = header.startswith(b"RIFF") and header[8:12] == b"WAVE"
+    elif ext == ".flac":
+        is_valid = header.startswith(b"fLaC")
+    elif ext == ".mp3":
+        is_valid = header.startswith(b"ID3") or (
+            len(header) > 1 and header[0] == 0xff and header[1] & 0xe0 == 0xe0
+        )
+    elif ext == ".m4a":
+        is_valid = header[4:8] == b"ftyp"
+    elif ext == ".aac":
+        is_valid = len(header) > 1 and header[0] == 0xff and header[1] & 0xf0 == 0xf0
+    elif ext == ".webm":
+        is_valid = header.startswith(b"\x1a\x45\xdf\xa3")
+    if not is_valid:
+        logger.error("Sound file %s has invalid signature", file_path)
+    return is_valid
+
+
 def is_safe_image_file(file_path: str) -> bool:
     """
     Check if an image file is safe to load by verifying its extension and basic file properties.

portprotonqt/themes/standart/sounds/License.txt

@@ -0,0 +1,22 @@
+
+
+	Interface Sounds (1.0)
+
+	Created/distributed by Kenney (www.kenney.nl)
+	Creation date: 11-02-2020
+
+			------------------------------
+
+	License: (Creative Commons Zero, CC0)
+	http://creativecommons.org/publicdomain/zero/1.0/
+
+	This content is free to use in personal, educational and commercial projects.
+	Support us by crediting Kenney or www.kenney.nl (this is not mandatory)
+
+			------------------------------
+
+	Donate:   http://support.kenney.nl
+	Patreon:  http://patreon.com/kenney/
+
+	Follow on Twitter for updates:
+	http://twitter.com/KenneyNL

portprotonqt/themes/standart/sounds/Modern-Minimal-LICENSE

@@ -0,0 +1,427 @@
+Attribution-ShareAlike 4.0 International
+
+=======================================================================
+
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+does not provide legal services or legal advice. Distribution of
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+Rights include other Copyright and Similar Rights.
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+Section 5 -- Disclaimer of Warranties and Limitation of Liability.
+
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+     Similar Rights licensed here. However, if You fail to comply with
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+  b. Where Your right to use the Licensed Material has terminated under
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+          it is cured within 30 days of Your discovery of the
+          violation; or
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+       2. upon express reinstatement by the Licensor.
+
+     For the avoidance of doubt, this Section 6(b) does not affect any
+     right the Licensor may have to seek remedies for Your violations
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+     License.
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portprotonqt/virtual_keyboard.py

@@ -309,6 +309,7 @@ class VirtualKeyboard(QFrame):
 
         backspace = QPushButton('⌫')
         backspace.setFixedSize(fixed_w, fixed_h)
+        backspace.setProperty("sound_event", False)
         backspace.pressed.connect(self.on_backspace_pressed)
         backspace.released.connect(self.stop_backspace_repeat)
         # Add gamepad icon for Backspace (X/Triangle)
@@ -422,6 +423,8 @@ class VirtualKeyboard(QFrame):
         """Move focus up across keyboard buttons with fixed speed"""
         current_time = self.get_current_time()
         if current_time - self.last_focus_time >= self.focus_delay:
+            from portprotonqt.sound_manager import SoundManager
+            SoundManager().play("navigate")
             self.focusNextKey("up")
             self.last_focus_time = current_time
 
@@ -429,6 +432,8 @@ class VirtualKeyboard(QFrame):
         """Move focus down across keyboard buttons with fixed speed"""
         current_time = self.get_current_time()
         if current_time - self.last_focus_time >= self.focus_delay:
+            from portprotonqt.sound_manager import SoundManager
+            SoundManager().play("navigate")
             self.focusNextKey("down")
             self.last_focus_time = current_time
 
@@ -436,6 +441,8 @@ class VirtualKeyboard(QFrame):
         """Move focus left across keyboard buttons with fixed speed"""
         current_time = self.get_current_time()
         if current_time - self.last_focus_time >= self.focus_delay:
+            from portprotonqt.sound_manager import SoundManager
+            SoundManager().play("navigate")
             self.focusNextKey("left")
             self.last_focus_time = current_time
 
@@ -443,6 +450,8 @@ class VirtualKeyboard(QFrame):
         """Move focus right across keyboard buttons with fixed speed"""
         current_time = self.get_current_time()
         if current_time - self.last_focus_time >= self.focus_delay:
+            from portprotonqt.sound_manager import SoundManager
+            SoundManager().play("navigate")
             self.focusNextKey("right")
             self.last_focus_time = current_time
 
@@ -463,6 +472,8 @@ class VirtualKeyboard(QFrame):
         return position[:2]  # row, col
 
     def on_button_click(self, key):
+        from portprotonqt.sound_manager import SoundManager
+        SoundManager().play("keyboard_key")
         if key in ['TAB', 'CAPS', '⬆']:
             if key == 'TAB':
                 self.on_tab_click()
@@ -530,6 +541,8 @@ class VirtualKeyboard(QFrame):
                 text = self.current_input_widget.text()
 
                 if cursor_pos > 0:
+                    from portprotonqt.sound_manager import SoundManager
+                    SoundManager().play("keyboard_key")
                     new_text = text[:cursor_pos - 1] + text[cursor_pos:]
                     self.current_input_widget.setText(new_text)
                     self.current_input_widget.setCursorPosition(cursor_pos - 1)

tests/test_main_window.py

@@ -7,9 +7,11 @@ from types import SimpleNamespace
 from typing import Any, cast
 
 from pytest import MonkeyPatch
+from PySide6.QtCore import Qt
 
 from portprotonqt.animations.library_controls import _animation_duration
 from portprotonqt.detail_pages import DetailPageManager
+from portprotonqt.game_library_manager import GameLibraryManager
 from portprotonqt.main_window import MainWindow
 from portprotonqt.portproton_api import remove_empty_custom_data_dirs
 import portprotonqt.tabs.autoinstall_tab as autoinstall_tab_module
@@ -588,6 +590,26 @@ def test_launch_autoinstall_checks_alt_i586_dependencies() -> None:
     assert window.installing is False
 
 
+def test_initial_library_card_focus_does_not_use_navigation_reason() -> None:
+    focus_reasons: list[Qt.FocusReason] = []
+    card = SimpleNamespace(
+        isVisible=lambda: True,
+        isEnabled=lambda: True,
+        setFocus=lambda reason: focus_reasons.append(reason),
+    )
+    manager: Any = GameLibraryManager.__new__(GameLibraryManager)
+    manager.main_window = SimpleNamespace(
+        stackedWidget=SimpleNamespace(currentIndex=lambda: 0),
+    )
+    manager.gamesListWidget = SimpleNamespace(findChildren=lambda _type: [card])
+    manager.gamesScrollArea = None
+    manager._focus_first_card_after_update = True
+
+    manager._focus_first_visible_card()
+
+    assert focus_reasons == [Qt.FocusReason.ActiveWindowFocusReason]
+
+
 def test_launch_dependency_percent_updates_button_before_status() -> None:
     window: Any = MainWindow.__new__(MainWindow)
     button = FakeButton()
@@ -614,6 +636,7 @@ def test_toggle_game_replaces_invalid_launch_output_bytes(
     exe_path.write_text("", encoding="utf-8")
     process = object()
     popen_kwargs: dict[str, object] = {}
+    launch_events: list[str] = []
     window: Any = MainWindow.__new__(MainWindow)
     window.start_sh = ["portproton"]
     window.game_processes = []
@@ -623,10 +646,15 @@ def test_toggle_game_replaces_invalid_launch_output_bytes(
     window.games = []
 
     def fake_popen(_command: list[str], **kwargs: object) -> object:
+        launch_events.append("popen")
         popen_kwargs.update(kwargs)
         return process
 
     monkeypatch.setattr("portprotonqt.main_window.subprocess.Popen", fake_popen)
+    monkeypatch.setattr(
+        "portprotonqt.main_window.SoundManager",
+        lambda: SimpleNamespace(play=launch_events.append),
+    )
     monkeypatch.setattr("portprotonqt.main_window.QTimer", FakeTimer)
     monkeypatch.setattr("portprotonqt.main_window.save_last_launch", lambda *_args: None)
     monkeypatch.setattr(window, "_check_alt_i586_dependencies_before_launch", lambda: True)
@@ -640,6 +668,7 @@ def test_toggle_game_replaces_invalid_launch_output_bytes(
     assert popen_kwargs["text"] is True
     assert popen_kwargs["errors"] == "replace"
     assert window.input_manager.suspended
+    assert launch_events == ["popen", "game_launch"]
 
 
 def test_process_portproton_desktop_calls_callback_without_asset_download(

tests/test_sound_manager.py

@@ -0,0 +1,284 @@
+"""Tests for UI sound playback and input integration."""
+
+import types
+from pathlib import Path
+from types import SimpleNamespace
+from typing import Any, cast
+from unittest.mock import Mock
+
+from PySide6.QtCore import QEvent, QObject, QPointF, Qt
+from PySide6.QtGui import QMouseEvent
+from PySide6.QtWidgets import QApplication, QComboBox, QMenu, QPushButton, QWidget
+from pytest import MonkeyPatch
+
+import portprotonqt.input_manager as input_manager
+import portprotonqt.main_window as main_window
+import portprotonqt.tabs.system_tab as system_tab
+from portprotonqt.input_manager import InputManager
+from portprotonqt.main_window import MainWindow
+from portprotonqt.sound_manager import SOUND_EVENTS, SoundManager, _SoundSlot
+from portprotonqt.tabs.system_tab import MainWindowSystemTabMixin
+
+
+def test_sound_manager_resets_slots_when_sound_dirs_change() -> None:
+    slots = [Mock(), Mock()]
+    manager: Any = object.__new__(SoundManager)
+    manager._sounds_dirs = ["old"]
+    manager._url_cache = {"click": object()}
+    manager._slots = slots
+
+    manager.set_sounds_dirs(["new"])
+
+    assert manager._url_cache == {}
+    assert all(slot.reset.called for slot in slots)
+
+
+def test_sound_manager_reuses_slot_for_same_event() -> None:
+    loaded_slot = Mock(_loaded_event="navigate")
+    other_slot = Mock(_loaded_event=None)
+    manager: Any = object.__new__(SoundManager)
+    manager._enabled = True
+    manager._slots = [loaded_slot, other_slot]
+    manager._slot_index = 1
+    manager._get_url = lambda _event: Mock()
+
+    manager.play("navigate")
+
+    loaded_slot.play.assert_called_once()
+    other_slot.play.assert_not_called()
+    assert manager._slot_index == 1
+
+
+def test_sound_slot_stops_at_end_of_media() -> None:
+    end_of_media = object()
+    slot: Any = object.__new__(_SoundSlot)
+    slot._player = Mock()
+    slot._player.MediaStatus.EndOfMedia = end_of_media
+
+    slot._handle_media_status(end_of_media)
+
+    slot._player.stop.assert_called_once()
+
+
+def test_sound_manager_skips_unsafe_sound_variant(tmp_path: Path) -> None:
+    sounds_dir = tmp_path / "sounds"
+    sounds_dir.mkdir()
+    (sounds_dir / "navigate.ogg").write_bytes(b"not audio")
+    safe_sound = sounds_dir / "navigate.wav"
+    safe_sound.write_bytes(b"RIFF\x00\x00\x00\x00WAVE" + b"\x00" * 32)
+    manager: Any = object.__new__(SoundManager)
+    manager._sounds_dirs = [str(sounds_dir)]
+
+    assert manager._find_sound_path("navigate") == safe_sound
+
+
+def test_standard_theme_provides_all_sound_events() -> None:
+    sounds_dir = Path(__file__).parent.parent / "portprotonqt" / "themes" / "standart" / "sounds"
+    manager: Any = object.__new__(SoundManager)
+    manager._sounds_dirs = [str(sounds_dir)]
+
+    assert all(manager._find_sound_path(event) is not None for event in SOUND_EVENTS)
+
+
+def test_widget_sound_uses_semantic_event() -> None:
+    manager: Any = object.__new__(SoundManager)
+    manager.play = Mock()
+    widget = types.SimpleNamespace(property=lambda name: "open" if name == "sound_event" else None)
+
+    manager.play_widget_sound(widget)
+
+    manager.play.assert_called_once_with("open")
+
+
+def test_widget_sound_can_disable_automatic_feedback() -> None:
+    manager: Any = object.__new__(SoundManager)
+    manager.play = Mock()
+    widget = types.SimpleNamespace(property=lambda name: False if name == "sound_event" else None)
+
+    manager.play_widget_sound(widget)
+
+    manager.play.assert_not_called()
+
+
+def test_combo_box_uses_open_sound() -> None:
+    app = QApplication.instance() or QApplication([])
+    manager: Any = object.__new__(SoundManager)
+    manager.play = Mock()
+
+    manager.play_widget_sound(QComboBox())
+
+    manager.play.assert_called_once_with("open")
+    assert app is not None
+
+
+def test_gamepad_connection_sound_skips_initial_device(monkeypatch: MonkeyPatch) -> None:
+    played_events: list[str] = []
+    duplicate_closed: list[bool] = []
+    gamepads = [
+        SimpleNamespace(path="/dev/input/js0", name="Gamepad", close=lambda: None),
+        SimpleNamespace(path="/dev/input/js0", name="Gamepad", close=lambda: duplicate_closed.append(True)),
+    ]
+    manager: Any = InputManager.__new__(InputManager)
+    manager._gamepad_polling_suspended = False
+    manager._initial_gamepad_check = True
+    manager.gamepad = None
+    manager.find_gamepad = lambda: gamepads.pop(0)
+    manager.detect_gamepad_axes = lambda _gamepad: None
+    manager._reset_input_state = lambda: None
+    manager._get_effective_gamepad_type = lambda _gamepad: "xbox"
+    manager._refresh_gamepad_ui = lambda: None
+    monkeypatch.setattr(input_manager, "SoundManager", lambda: SimpleNamespace(play=played_events.append))
+    monkeypatch.setattr(input_manager.display_config, "get_auto_fullscreen_gamepad", lambda: False)
+
+    manager.check_gamepad()
+    manager._initial_gamepad_check = False
+    manager.check_gamepad()
+
+    assert played_events == []
+    assert duplicate_closed == [True]
+
+
+def test_gamepad_connection_sound_plays_after_startup(monkeypatch: MonkeyPatch) -> None:
+    played_events: list[str] = []
+    manager: Any = InputManager.__new__(InputManager)
+    manager._gamepad_polling_suspended = False
+    manager._initial_gamepad_check = False
+    manager.gamepad = None
+    manager.find_gamepad = lambda: SimpleNamespace(path="/dev/input/js0", name="Gamepad", close=lambda: None)
+    manager.detect_gamepad_axes = lambda _gamepad: None
+    manager._reset_input_state = lambda: None
+    manager._get_effective_gamepad_type = lambda _gamepad: "xbox"
+    manager._refresh_gamepad_ui = lambda: None
+    monkeypatch.setattr(input_manager, "SoundManager", lambda: SimpleNamespace(play=played_events.append))
+    monkeypatch.setattr(input_manager.display_config, "get_auto_fullscreen_gamepad", lambda: False)
+
+    manager.check_gamepad()
+
+    assert played_events == ["gamepad_connect"]
+
+
+def test_menu_navigation_plays_sound(monkeypatch: MonkeyPatch) -> None:
+    app = QApplication.instance() or QApplication([])
+    menu = QMenu()
+    first_action = menu.addAction("First")
+    second_action = menu.addAction("Second")
+    menu.setActiveAction(first_action)
+    played_events: list[str] = []
+    manager: Any = InputManager.__new__(InputManager)
+    monkeypatch.setattr(input_manager, "SoundManager", lambda: SimpleNamespace(play=played_events.append))
+
+    manager._navigate_menu_actions(menu, direction_down=True)
+
+    assert menu.activeAction() is second_action
+    assert played_events == ["navigate"]
+    assert app is not None
+
+
+def test_menu_show_plays_open_sound(monkeypatch: MonkeyPatch) -> None:
+    app = QApplication.instance() or QApplication([])
+    played_events: list[str] = []
+    manager = InputManager.__new__(InputManager)
+    QObject.__init__(manager)
+    monkeypatch.setattr(input_manager, "SoundManager", lambda: SimpleNamespace(play=played_events.append))
+
+    manager.eventFilter(QMenu(), QEvent(QEvent.Type.Show))
+
+    assert played_events == ["open"]
+    assert app is not None
+
+
+def test_combo_popup_show_plays_open_sound(monkeypatch: MonkeyPatch) -> None:
+    app = QApplication.instance() or QApplication([])
+    played_events: list[str] = []
+    manager = InputManager.__new__(InputManager)
+    QObject.__init__(manager)
+    combo = QComboBox()
+    popup = QWidget(combo, Qt.WindowType.Popup)
+    monkeypatch.setattr(input_manager, "SoundManager", lambda: SimpleNamespace(play=played_events.append))
+
+    manager.eventFilter(popup, QEvent(QEvent.Type.Show))
+
+    assert played_events == ["open"]
+    assert app is not None
+
+
+def test_combo_show_does_not_play_open_sound(monkeypatch: MonkeyPatch) -> None:
+    app = QApplication.instance() or QApplication([])
+    played_events: list[str] = []
+    manager = InputManager.__new__(InputManager)
+    QObject.__init__(manager)
+    monkeypatch.setattr(input_manager, "SoundManager", lambda: SimpleNamespace(play=played_events.append))
+
+    manager.eventFilter(QComboBox(), QEvent(QEvent.Type.Show))
+
+    assert played_events == []
+    assert app is not None
+
+
+def test_right_mouse_button_does_not_play_widget_sound(monkeypatch: MonkeyPatch) -> None:
+    app = QApplication.instance() or QApplication([])
+    played_widgets: list[object] = []
+    manager = InputManager.__new__(InputManager)
+    QObject.__init__(manager)
+    sound_manager = SimpleNamespace(play_widget_sound=played_widgets.append)
+    monkeypatch.setattr(input_manager, "SoundManager", lambda: sound_manager)
+    event = QMouseEvent(
+        QEvent.Type.MouseButtonRelease,
+        QPointF(),
+        QPointF(),
+        QPointF(),
+        Qt.MouseButton.RightButton,
+        Qt.MouseButton.NoButton,
+        Qt.KeyboardModifier.NoModifier,
+    )
+
+    manager.eventFilter(QPushButton(), event)
+
+    assert played_widgets == []
+    assert app is not None
+
+
+def test_system_section_change_plays_tab_sound(monkeypatch: MonkeyPatch) -> None:
+    played_events: list[str] = []
+    section_stack = SimpleNamespace(
+        count=lambda: 2,
+        currentIndex=lambda: 0,
+        setCurrentIndex=lambda _index: None,
+    )
+    buttons = [
+        SimpleNamespace(isVisible=lambda: True, setChecked=lambda _checked: None),
+        SimpleNamespace(isVisible=lambda: True, setChecked=lambda _checked: None),
+    ]
+    window = SimpleNamespace(
+        systemSectionStack=section_stack,
+        systemSectionButtons=buttons,
+        _focusCurrentSystemSection=lambda _index: None,
+    )
+    monkeypatch.setattr(system_tab, "SoundManager", lambda: SimpleNamespace(play=played_events.append))
+
+    changed = MainWindowSystemTabMixin.switchSystemSection(cast(Any, window), 1)
+
+    assert changed is True
+    assert played_events == ["tab_switch"]
+
+
+def test_autoinstall_tab_defers_loading_until_after_sound(monkeypatch: MonkeyPatch) -> None:
+    calls: list[str] = []
+    scheduled: list[object] = []
+    button = SimpleNamespace(isVisible=lambda: True, setChecked=lambda _checked: None)
+    stack = SimpleNamespace(setCurrentIndex=lambda _index: None, currentIndex=lambda: 1)
+    window = SimpleNamespace(
+        tabButtons={1: button},
+        stackedWidget=stack,
+        auto_install_tab_index=1,
+        system_tab_index=-1,
+        _start_autoinstall_load=lambda: calls.append("load"),
+        _close_library_controls=lambda: None,
+    )
+    monkeypatch.setattr(main_window, "SoundManager", lambda: SimpleNamespace(play=calls.append))
+    monkeypatch.setattr(main_window.QTimer, "singleShot", lambda _delay, callback: scheduled.append(callback))
+
+    MainWindow.switchTab(cast(Any, window), 1)
+
+    assert calls == ["tab_switch"]
+    assert scheduled == [window._start_autoinstall_load]

tests/test_theme_security.py

@@ -9,6 +9,7 @@ from portprotonqt.theme_security import (
     check_theme_safety,
     is_safe_font_file,
     is_safe_image_file,
+    is_safe_sound_file,
 )
 
 THEMES_DIR = Path(__file__).resolve().parent.parent / "portprotonqt" / "themes"
@@ -396,6 +397,34 @@ class TestFontSafety:
         assert is_safe_font_file(str(f))
 
 
+class TestSoundSafety:
+    @pytest.mark.parametrize(
+        ("extension", "header"),
+        [
+            (".ogg", b"OggS"),
+            (".oga", b"OggS"),
+            (".opus", b"OggS"),
+            (".wav", b"RIFF\x00\x00\x00\x00WAVE"),
+            (".mp3", b"ID3"),
+            (".flac", b"fLaC"),
+            (".m4a", b"\x00\x00\x00\x10ftyp"),
+            (".aac", b"\xff\xf1"),
+            (".webm", b"\x1a\x45\xdf\xa3"),
+        ],
+    )
+    def test_supported_signatures(
+        self, tmp_path: Path, extension: str, header: bytes,
+    ) -> None:
+        sound = tmp_path / f"sound{extension}"
+        sound.write_bytes(header + b"\x00" * 32)
+        assert is_safe_sound_file(str(sound))
+
+    def test_rejects_disguised_sound(self, tmp_path: Path) -> None:
+        sound = tmp_path / "sound.ogg"
+        sound.write_bytes(b"not audio")
+        assert not is_safe_sound_file(str(sound))
+
+
 # === Image safety ===