fix: do not allow force stopping SystemUI or key mapper app

Author: sds100

base/src/main/java/io/github/sds100/keymapper/base/actions/PerformActionsUseCase.kt

@@ -929,9 +929,15 @@ class PerformActionsUseCaseImpl @AssistedInject constructor(
             }
 
             ActionData.ForceStopApp -> {
-                val packageName = service.rootNode!!.packageName
+                val packageName = service.activeWindowPackageNames
+                    .firstOrNull {
+                        !it.contains("io.github.sds100.keymapper") &&
+                            it != "com.android.systemui"
+                    }
 
-                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
+                if (packageName == null) {
+                    result = KMError.Exception(Exception("No foreground app found to kill"))
+                } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
                     result = systemBridgeConnectionManager.run { systemBridge ->
                         systemBridge.forceStopPackage(packageName)
                     }
@@ -941,9 +947,13 @@ class PerformActionsUseCaseImpl @AssistedInject constructor(
             }
 
             ActionData.ClearRecentApp -> {
-                val packageName = service.rootNode!!.packageName
+                val packageName = service.activeWindowPackageNames
+                    .firstOrNull { it != "com.android.systemui" }
 
-                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
+                if (packageName == null) {
+                    result =
+                        KMError.Exception(Exception("No foreground app found to clear from recents"))
+                } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
                     result = systemBridgeConnectionManager.run { systemBridge ->
                         systemBridge.removeTasks(packageName)
                     }

base/src/main/java/io/github/sds100/keymapper/base/system/accessibility/BaseAccessibilityService.kt

@@ -67,6 +67,12 @@ abstract class BaseAccessibilityService :
             return rootInActiveWindow?.toModel()
         }
 
+    override val activeWindowPackageNames: List<String>
+        get() = windows
+            ?.filter { it.isActive }
+            ?.mapNotNull { it.root?.packageName?.toString() }
+            ?.toList() ?: emptyList()
+
     private val _activeWindowPackage: MutableStateFlow<String?> = MutableStateFlow(null)
     override val activeWindowPackage: Flow<String?> = _activeWindowPackage
 

base/src/main/java/io/github/sds100/keymapper/base/system/accessibility/IAccessibilityService.kt

@@ -45,6 +45,7 @@ interface IAccessibilityService : SwitchImeInterface {
 
     val rootNode: AccessibilityNodeModel?
     val activeWindowPackage: Flow<String?>
+    val activeWindowPackageNames: List<String>
 
     fun hideKeyboard()
     fun showKeyboard()