Define widget picker data provider separate from popup provider

Separate provider in ActivityContext and relevant implementations that
open widget picker

Bug: 353347512
Flag: EXEMPT BUGFIX
Test: Unit test
Change-Id: I55df3d9ce6ae9b7d0a310a8686b188618d229065
diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index 5949732..6c706be 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -266,6 +266,7 @@
 import com.android.launcher3.widget.custom.CustomWidgetManager;
 import com.android.launcher3.widget.model.WidgetsListBaseEntry;
 import com.android.launcher3.widget.picker.WidgetsFullSheet;
+import com.android.launcher3.widget.picker.model.WidgetPickerDataProvider;
 import com.android.launcher3.widget.util.WidgetSizes;
 import com.android.systemui.plugins.LauncherOverlayPlugin;
 import com.android.systemui.plugins.PluginListener;
@@ -371,6 +372,7 @@
     private LauncherAccessibilityDelegate mAccessibilityDelegate;
 
     private PopupDataProvider mPopupDataProvider;
+    private WidgetPickerDataProvider mWidgetPickerDataProvider;
 
     // We only want to get the SharedPreferences once since it does an FS stat each time we get
     // it from the context.
@@ -532,6 +534,7 @@
                 mFocusHandler, new CellLayout(mWorkspace.getContext(), mWorkspace));
 
         mPopupDataProvider = new PopupDataProvider(this::updateNotificationDots);
+        mWidgetPickerDataProvider = new WidgetPickerDataProvider();
 
         boolean internalStateHandled = ACTIVITY_TRACKER.handleCreate(this);
         if (internalStateHandled) {
@@ -2702,6 +2705,7 @@
         mDragLayer.dump(prefix, writer);
         mStateManager.dump(prefix, writer);
         mPopupDataProvider.dump(prefix, writer);
+        mWidgetPickerDataProvider.dump(prefix, writer);
         mDeviceProfile.dump(this, prefix, writer);
         mAppsView.getAppsStore().dump(prefix, writer);
 
@@ -3011,6 +3015,12 @@
         return mPopupDataProvider;
     }
 
+    @NonNull
+    @Override
+    public WidgetPickerDataProvider getWidgetPickerDataProvider() {
+        return mWidgetPickerDataProvider;
+    }
+
     @Override
     public DotInfo getDotInfoForItem(ItemInfo info) {
         return mPopupDataProvider.getDotInfoForItem(info);