Add a bubble option to launcher long press menus

- Add a launcher "system shortcut" to bubble deep shortcuts or apps
- For shortcuts, save the shortcut info to use to produce the bubble
- Add an interface so that the system shortcut can call through to
  sysui proxy

Flag: com.android.wm.shell.enable_bubble_anything
Test: manual - enable the flag and try to bubble a shortcut via the
               longpress menu on launcher
             - try bubbling an app on launcher
             - try bubbling an app from the taskbar
Bug: 342245211
Change-Id: I1ef49e1628ba0be9cea05073ecd9cd66bf67f88f

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

@@ -53,6 +53,7 @@ import com.android.quickstep.SystemUiProxy;
 import com.android.quickstep.util.LogUtils;
 
 import java.io.PrintWriter;
+import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Objects;
@@ -69,6 +70,9 @@ public class TaskbarPopupController implements TaskbarControllers.LoggableTaskba
     private static final SystemShortcut.Factory<BaseTaskbarContext>
             APP_INFO = SystemShortcut.AppInfo::new;
 
+    private static final SystemShortcut.Factory<BaseTaskbarContext>
+            BUBBLE = SystemShortcut.BubbleShortcut::new;
+
     private final TaskbarActivityContext mContext;
     private final PopupDataProvider mPopupDataProvider;
 
@@ -182,10 +186,13 @@ public class TaskbarPopupController implements TaskbarControllers.LoggableTaskba
     // Create a Stream of all applicable system shortcuts
     private Stream<SystemShortcut.Factory> getSystemShortcuts() {
         // append split options to APP_INFO shortcut, the order here will reflect in the popup
-        return Stream.concat(
-                Stream.of(APP_INFO),
-                mControllers.uiController.getSplitMenuOptions()
-        );
+        ArrayList<SystemShortcut.Factory> shortcuts = new ArrayList<>();
+        shortcuts.add(APP_INFO);
+        shortcuts.addAll(mControllers.uiController.getSplitMenuOptions().toList());
+        if (com.android.wm.shell.Flags.enableBubbleAnything()) {
+            shortcuts.add(BUBBLE);
+        }
+        return shortcuts.stream();
     }
 
     @Override