Fix game list crash, unresponsive macOS menu, and missing SDL gamepad input (#100)

* game_list: fix crash when scanning games by removing nested event processing

Assisted-by: DeepSeek V4 Pro (root cause diagnosis and fix)
Signed-off-by: QuantumDriftDev <350698041+QuantumDriftDev@users.noreply.github.com>

* macos: fix unresponsive application menu by removing the SDL/Qt event loop conflict

Assisted-by: GPT-6.1 Sol (root cause diagnosis and implementation)
Signed-off-by: QuantumDriftDev <350698041+QuantumDriftDev@users.noreply.github.com>

* input_common: handle SDL gamepad button and axis events

Assisted-by: DeepSeek V4 Pro (implementation)
Signed-off-by: QuantumDriftDev <350698041+QuantumDriftDev@users.noreply.github.com>

---------

Signed-off-by: QuantumDriftDev <350698041+QuantumDriftDev@users.noreply.github.com>

7 files changed, 77 insertions, 2 deletions

diff --git a/src/input_common/drivers/sdl_driver.cpp b/src/input_common/drivers/sdl_driver.cpp
index c3e9a066b3..1f1f9543f4 100644
--- a/src/input_common/drivers/sdl_driver.cpp
+++ b/src/input_common/drivers/sdl_driver.cpp
@@ -589,6 +589,15 @@ void SDLDriver::HandleGameControllerEvent(const SDL_Event& event) {
         }
         break;
     }
+    case SDL_EVENT_GAMEPAD_BUTTON_DOWN:
+    case SDL_EVENT_GAMEPAD_BUTTON_UP: {
+        const bool down = event.type == SDL_EVENT_GAMEPAD_BUTTON_DOWN;
+        if (const auto joystick = GetSDLJoystickBySDLID(event.gbutton.which)) {
+            const PadIdentifier identifier = joystick->GetPadIdentifier();
+            SetButton(identifier, event.gbutton.button, down);
+        }
+        break;
+    }
     case SDL_EVENT_JOYSTICK_HAT_MOTION: {
         if (const auto joystick = GetSDLJoystickBySDLID(event.jhat.which)) {
             const PadIdentifier identifier = joystick->GetPadIdentifier();
@@ -603,6 +612,13 @@ void SDLDriver::HandleGameControllerEvent(const SDL_Event& event) {
         }
         break;
     }
+    case SDL_EVENT_GAMEPAD_AXIS_MOTION: {
+        if (const auto joystick = GetSDLJoystickBySDLID(event.gaxis.which)) {
+            const PadIdentifier identifier = joystick->GetPadIdentifier();
+            SetAxis(identifier, event.gaxis.axis, event.gaxis.value / 32767.0f);
+        }
+        break;
+    }
     case SDL_EVENT_GAMEPAD_SENSOR_UPDATE: {
         auto joystick = GetSDLJoystickByGamepadID(event.gsensor.which);
         if (!joystick) {
diff --git a/src/yuzu/CMakeLists.txt b/src/yuzu/CMakeLists.txt
index e6906a4ef0..40ff1d45f9 100644
--- a/src/yuzu/CMakeLists.txt
+++ b/src/yuzu/CMakeLists.txt
@@ -358,6 +358,8 @@ target_sources(yuzu
 
 # TODO(crueter): Move Assets.car/icon/icns handling to its own Module.
 if (APPLE)
+    target_sources(yuzu PRIVATE util/macos_sleep.cpp util/macos_sleep.h)
+
     # Xcode will automatically generate the Assets.car and icns file for us.
     set(_dist "${CMAKE_SOURCE_DIR}/dist")
     if (CMAKE_GENERATOR MATCHES "Xcode")
diff --git a/src/yuzu/game/game_list.cpp b/src/yuzu/game/game_list.cpp
index 6b89e59253..cd7fc19de4 100644
--- a/src/yuzu/game/game_list.cpp
+++ b/src/yuzu/game/game_list.cpp
@@ -295,7 +295,6 @@ void GameList::OnPopulatingCompleted(const QStringList& watch_list) {
             if (!chunk.isEmpty()) {
                 callback(chunk);
             }
-            QCoreApplication::processEvents();
         }
     };
 
diff --git a/src/yuzu/main_window.cpp b/src/yuzu/main_window.cpp
index 13359620dd..b0c0446add 100644
--- a/src/yuzu/main_window.cpp
+++ b/src/yuzu/main_window.cpp
@@ -85,6 +85,10 @@
 #include <QStatusBar>
 #include <QtConcurrentRun>
 
+#ifdef __APPLE__
+#include "util/macos_sleep.h"
+#endif
+
 // Qt Common //
 #include "qt_common/config/shared_translation.h"
 #include "qt_common/config/uisettings.h"
@@ -493,7 +497,8 @@ MainWindow::MainWindow(bool has_broken_vulkan)
         VkDeviceInfo::PopulateRecords(vk_device_records, this->window()->windowHandle());
     }
 
-#if !defined(_WIN32)
+    // On macOS, SDL video would pump AppKit events alongside Qt and disrupt native menus.
+#if !defined(_WIN32) && !defined(__APPLE__)
     SDL_InitSubSystem(SDL_INIT_VIDEO);
 
     // Set a screensaver inhibition reason string. Currently passed to DBus by SDL and visible to
@@ -549,6 +554,10 @@ MainWindow::MainWindow(bool has_broken_vulkan)
 }
 
 MainWindow::~MainWindow() {
+#ifdef __APPLE__
+    AllowOSSleep();
+#endif
+
     // will get automatically deleted otherwise
     if (render_window->parent() == nullptr) {
         delete render_window;
@@ -1758,6 +1767,10 @@ void MainWindow::OnSigInterruptNotifierActivated() {
 void MainWindow::PreventOSSleep() {
 #ifdef _WIN32
     SetThreadExecutionState(ES_CONTINUOUS | ES_SYSTEM_REQUIRED | ES_DISPLAY_REQUIRED);
+#elif defined(__APPLE__)
+    if (sleep_assertion_id == 0) {
+        sleep_assertion_id = MacOS::PreventSleep();
+    }
 #else
     SDL_DisableScreenSaver();
 #endif
@@ -1766,6 +1779,11 @@ void MainWindow::PreventOSSleep() {
 void MainWindow::AllowOSSleep() {
 #ifdef _WIN32
     SetThreadExecutionState(ES_CONTINUOUS);
+#elif defined(__APPLE__)
+    if (sleep_assertion_id != 0) {
+        MacOS::AllowSleep(sleep_assertion_id);
+        sleep_assertion_id = 0;
+    }
 #else
     SDL_EnableScreenSaver();
 #endif
diff --git a/src/yuzu/main_window.h b/src/yuzu/main_window.h
index 8aedeec721..57f585fef9 100644
--- a/src/yuzu/main_window.h
+++ b/src/yuzu/main_window.h
@@ -546,6 +546,9 @@ private:
 
     bool auto_paused = false;
     bool auto_muted = false;
+#ifdef __APPLE__
+    u32 sleep_assertion_id = 0;
+#endif
     QTimer mouse_hide_timer;
     QTimer update_input_timer;
 
diff --git a/src/yuzu/util/macos_sleep.cpp b/src/yuzu/util/macos_sleep.cpp
new file mode 100644
index 0000000000..7525c37dca
--- /dev/null
+++ b/src/yuzu/util/macos_sleep.cpp
@@ -0,0 +1,25 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include <IOKit/pwr_mgt/IOPMLib.h>
+#include "common/logging.h"
+#include "yuzu/util/macos_sleep.h"
+
+namespace MacOS {
+
+u32 PreventSleep() {
+    IOPMAssertionID assertion_id = kIOPMNullAssertionID;
+    const auto result =
+        IOPMAssertionCreateWithName(kIOPMAssertionTypePreventUserIdleDisplaySleep,
+                                    kIOPMAssertionLevelOn, CFSTR("Running a game"), &assertion_id);
+    if (result != kIOReturnSuccess) {
+        LOG_WARNING(Frontend, "Failed to prevent display sleep: {}", result);
+        return kIOPMNullAssertionID;
+    }
+    return assertion_id;
+}
+
+void AllowSleep(u32 assertion_id) {
+    IOPMAssertionRelease(assertion_id);
+}
+
+} // namespace MacOS
diff --git a/src/yuzu/util/macos_sleep.h b/src/yuzu/util/macos_sleep.h
new file mode 100644
index 0000000000..600dd7c553
--- /dev/null
+++ b/src/yuzu/util/macos_sleep.h
@@ -0,0 +1,12 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include "common/common_types.h"
+
+namespace MacOS {
+
+u32 PreventSleep();
+void AllowSleep(u32 assertion_id);
+
+} // namespace MacOS