make the qlaunch button inactive if there is no firmware

src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/view/SettingsItem.kt

@@ -60,6 +60,11 @@ abstract class SettingsItem(
                 return NativeInput.getStyleIndex(0) != NpadStyleIndex.Handheld
             }
 
+            // Can't edit enable_qlaunch_button if firmware is not available
+            if (setting.key == BooleanSetting.ENABLE_QLAUNCH_BUTTON.key) {
+                return NativeLibrary.isFirmwareAvailable()
+            }
+
             // Can't edit settings that aren't saveable in per-game config even if they are switchable
             if (NativeConfig.isPerGameConfigLoaded() && !setting.isSaveable) {
                 return false

src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/SettingsFragmentPresenter.kt

@@ -1195,6 +1195,9 @@ class SettingsFragmentPresenter(
             add(HeaderSetting(R.string.buttons))
             add(BooleanSetting.ENABLE_FOLDER_BUTTON.key)
             add(BooleanSetting.ENABLE_QLAUNCH_BUTTON.key)
+            if (!NativeLibrary.isFirmwareAvailable()) {
+                BooleanSetting.ENABLE_QLAUNCH_BUTTON.setBoolean(false)
+            }
         }
     }
 

src/android/app/src/main/java/org/yuzu/yuzu_emu/ui/GamesFragment.kt

@@ -489,8 +489,16 @@ class GamesFragment : Fragment() {
     private fun updateButtonsVisibility() {
         val showQLaunch = BooleanSetting.ENABLE_QLAUNCH_BUTTON.getBoolean()
         val showFolder = BooleanSetting.ENABLE_FOLDER_BUTTON.getBoolean()
+        val isFirmwareAvailable = NativeLibrary.isFirmwareAvailable()
+
+        val shouldShowQLaunch = showQLaunch && isFirmwareAvailable
+        binding.launchQlaunch.visibility = if (shouldShowQLaunch) View.VISIBLE else View.GONE
+        binding.launchQlaunch.isEnabled = shouldShowQLaunch
+
+        if (showQLaunch && !isFirmwareAvailable) {
+            binding.launchQlaunch.contentDescription = getString(R.string.applets_error_firmware)
+        }
 
-        binding.launchQlaunch.visibility = if (showQLaunch) View.VISIBLE else View.GONE
         binding.addDirectory.visibility = if (showFolder) View.VISIBLE else View.GONE
     }