More test for taskbar overflow

Adds tests to TaskbarOverflowTests to verify that:
*   tapping overflow view toggles keyboard quick switch view
*   tasks associated with a hotseat item don't get added to
    recents taskbar section / overflow view
*   keyboard quick switch view shown from taskbar contains
    running tasks, excluding tasks associated with a hotseat item

Bug: 379774843
Flag: com.android.launcher3.taskbar_overflow
Test: atest TaskbarOverflowTest

Change-Id: Iee6316c33cef6322d567e853f9fa358b7af9e172

quickstep/src/com/android/launcher3/taskbar/KeyboardQuickSwitchController.java

@@ -17,6 +17,7 @@ package com.android.launcher3.taskbar;
 
 import static com.android.launcher3.Flags.enableAltTabKqsOnConnectedDisplays;
 
+import android.app.ActivityManager;
 import android.content.ComponentName;
 import android.content.pm.ActivityInfo;
 import android.view.MotionEvent;
@@ -354,6 +355,27 @@ public final class KeyboardQuickSwitchController implements
         }
     }
 
+    @VisibleForTesting
+    boolean isShownFromTaskbar() {
+        return isShown() && mQuickSwitchViewController.wasOpenedFromTaskbar();
+    }
+
+    @VisibleForTesting
+    boolean isShown() {
+        return mQuickSwitchViewController != null
+                && !mQuickSwitchViewController.isCloseAnimationRunning();
+    }
+
+    @VisibleForTesting
+    List<Integer> shownTaskIds() {
+        if (!isShown()) {
+            return Collections.emptyList();
+        }
+
+        return mTasks.stream().flatMap(
+                groupTask -> groupTask.getTasks().stream().map(task -> task.key.id)).toList();
+    }
+
     @Override
     public void dumpLogs(String prefix, PrintWriter pw) {
         pw.println(prefix + "KeyboardQuickSwitchController:");
@@ -423,7 +445,13 @@ public final class KeyboardQuickSwitchController implements
             if (task == null) {
                 return false;
             }
-            int runningTaskId = ActivityManagerWrapper.getInstance().getRunningTask().taskId;
+            ActivityManager.RunningTaskInfo runningTaskInfo =
+                    ActivityManagerWrapper.getInstance().getRunningTask();
+            if (runningTaskInfo == null) {
+                return false;
+            }
+
+            int runningTaskId = runningTaskInfo.taskId;
             return task.containsTask(runningTaskId);
         }