Check the feature flag before showing bubbles shortcut widget

Flag: com.android.wm.shell.enable_retrievable_bubbles
Bug: 340337839
Test: manual

Change-Id: I39424de3c448a1991a62dd198c195db5418788ba
diff --git a/src/com/android/launcher3/model/WidgetsModel.java b/src/com/android/launcher3/model/WidgetsModel.java
index 5e0edb3..b3f88ec 100644
--- a/src/com/android/launcher3/model/WidgetsModel.java
+++ b/src/com/android/launcher3/model/WidgetsModel.java
@@ -41,6 +41,7 @@
 import com.android.launcher3.widget.model.WidgetsListBaseEntry;
 import com.android.launcher3.widget.model.WidgetsListContentEntry;
 import com.android.launcher3.widget.model.WidgetsListHeaderEntry;
+import com.android.wm.shell.Flags;
 
 import java.util.ArrayList;
 import java.util.Arrays;
@@ -201,6 +202,7 @@
         // add and update.
         mWidgetsList.putAll(rawWidgetsShortcuts.stream()
                 .filter(new WidgetValidityCheck(app))
+                .filter(new WidgetFlagCheck())
                 .flatMap(widgetItem -> getPackageUserKeys(app.getContext(), widgetItem).stream()
                         .map(key -> new Pair<>(packageItemInfoCache.getOrCreate(key), widgetItem)))
                 .collect(groupingBy(pair -> pair.first, mapping(pair -> pair.second, toList()))));
@@ -360,6 +362,21 @@
         }
     }
 
+    private static class WidgetFlagCheck implements Predicate<WidgetItem> {
+
+        private static final String BUBBLES_SHORTCUT_WIDGET =
+                "com.android.systemui/com.android.wm.shell.bubbles.shortcut"
+                        + ".CreateBubbleShortcutActivity";
+
+        @Override
+        public boolean test(WidgetItem widgetItem) {
+            if (BUBBLES_SHORTCUT_WIDGET.equals(widgetItem.componentName.flattenToString())) {
+                return Flags.enableRetrievableBubbles();
+            }
+            return true;
+        }
+    }
+
     private static final class PackageItemInfoCache {
         private final Map<PackageUserKey, PackageItemInfo> mMap = new ArrayMap<>();