Merge "Invoke home via recents for fallback recents" into sc-v2-dev am: 9b762e9778

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/15430812

Change-Id: Ibfadc5c4a295be844c9a193a9f9a415159f35b8d

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

@@ -18,7 +18,6 @@ package com.android.launcher3.taskbar;
 
 import static android.view.Display.DEFAULT_DISPLAY;
 
-import android.content.Intent;
 import android.view.inputmethod.InputMethodManager;
 
 import androidx.annotation.IntDef;
@@ -90,9 +89,7 @@ public class TaskbarNavButtonController {
     }
 
     private void navigateHome() {
-        mService.startActivity(new Intent(Intent.ACTION_MAIN)
-                .addCategory(Intent.CATEGORY_HOME)
-                .setFlags(Intent.FLAG_ACTIVITY_NEW_TASK));
+        mService.getOverviewCommandHelper().addCommand(OverviewCommandHelper.TYPE_HOME);
     }
 
     private void navigateToOverview() {

quickstep/src/com/android/quickstep/OverviewCommandHelper.java

@@ -49,6 +49,7 @@ public class OverviewCommandHelper {
     public static final int TYPE_SHOW_NEXT_FOCUS = 2;
     public static final int TYPE_HIDE = 3;
     public static final int TYPE_TOGGLE = 4;
+    public static final int TYPE_HOME = 5;
 
     private static final String TRANSITION_NAME = "Transition:toOverview";
 
@@ -154,6 +155,10 @@ public class OverviewCommandHelper {
                 // already hidden
                 return true;
             }
+            if (cmd.type == TYPE_HOME) {
+                mService.startActivity(mOverviewComponentObserver.getHomeIntent());
+                return true;
+            }
         } else {
             switch (cmd.type) {
                 case TYPE_SHOW:
@@ -168,6 +173,9 @@ public class OverviewCommandHelper {
                 }
                 case TYPE_TOGGLE:
                     return launchTask(recents, getNextTask(recents), cmd);
+                case TYPE_HOME:
+                    recents.startHome();
+                    return true;
             }
         }