Allow stashed taskbar to be long pressed.

Bug: 319175012
Test: Manual and unit test
Flag: NA
(see other change)

Change-Id: Ic8ac68d21c64a909a1035339d36f9c3b50a8963c

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

@@ -20,6 +20,7 @@ import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_N
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
 import android.animation.ValueAnimator;
+import android.content.Context;
 import android.content.SharedPreferences;
 import android.content.res.Resources;
 import android.graphics.Outline;
@@ -37,6 +38,7 @@ import com.android.launcher3.util.DisplayController;
 import com.android.launcher3.util.Executors;
 import com.android.launcher3.util.MultiPropertyFactory;
 import com.android.launcher3.util.MultiValueAlpha;
+import com.android.quickstep.NavHandle;
 import com.android.systemui.shared.navigationbar.RegionSamplingHelper;
 
 import java.io.PrintWriter;
@@ -44,7 +46,8 @@ import java.io.PrintWriter;
 /**
  * Handles properties/data collection, then passes the results to our stashed handle View to render.
  */
-public class StashedHandleViewController implements TaskbarControllers.LoggableTaskbarController {
+public class StashedHandleViewController implements TaskbarControllers.LoggableTaskbarController,
+        NavHandle {
 
     public static final int ALPHA_INDEX_STASHED = 0;
     public static final int ALPHA_INDEX_HOME_DISABLED = 1;
@@ -298,4 +301,24 @@ public class StashedHandleViewController implements TaskbarControllers.LoggableT
         pw.println(prefix + "\tmStashedHandleHeight=" + mStashedHandleHeight);
         mRegionSamplingHelper.dump(prefix, pw);
     }
+
+    @Override
+    public void animateNavBarLongPress(boolean isTouchDown, boolean shrink, long durationMs) {
+        // TODO(b/308693847): Animate similarly to NavigationHandle.java (SysUI).
+    }
+
+    @Override
+    public boolean isNavHandleStashedTaskbar() {
+        return true;
+    }
+
+    @Override
+    public boolean canNavHandleBeLongPressed() {
+        return isStashedHandleVisible();
+    }
+
+    @Override
+    public int getNavHandleWidth(Context context) {
+        return mStashedHandleWidth;
+    }
 }