Add Widget Resize Frame actions

Demos:
http://screencast/cast/NTE1NDE3NzM0MzgxNTY4MHwxYzQ2MDVlOC1mOQ
http://screencast/cast/NTcwNTM3ODE5MTkwMDY3Mnw5MDBiNzAzMS03MA

Bug: 374248904
Test: manual - activate talkback, add new widget
Flag: EXEMPT bug fix
Change-Id: I80ab0da75ec054709a28f41d9ceabce9e94866d9

src/com/android/launcher3/AppWidgetResizeFrame.java

@@ -216,6 +216,13 @@ public class AppWidgetResizeFrame extends AbstractFloatingView implements View.O
         AppWidgetResizeFrame frame = (AppWidgetResizeFrame) launcher.getLayoutInflater()
                 .inflate(R.layout.app_widget_resize_frame, dl, false);
         frame.setupForWidget(widget, cellLayout, dl);
+        // Save widget item info as tag on resize frame; so that, the accessibility delegate can
+        // attach actions that typically happen on widget (e.g. resize, move) also on the resize
+        // frame.
+        frame.setTag(widget.getTag());
+        frame.setAccessibilityDelegate(launcher.getAccessibilityDelegate());
+        frame.setContentDescription(launcher.asContext().getString(R.string.widget_frame_name,
+                widget.getContentDescription()));
         ((DragLayer.LayoutParams) frame.getLayoutParams()).customPosition = true;
 
         dl.addView(frame);
@@ -235,6 +242,13 @@ public class AppWidgetResizeFrame extends AbstractFloatingView implements View.O
         }
     }
 
+    /**
+     *  Retrieves the view where accessibility actions happen.
+     */
+    public View getViewForAccessibility() {
+        return mWidgetView;
+    }
+
     private void setupForWidget(LauncherAppWidgetHostView widgetView, CellLayout cellLayout,
             DragLayer dragLayer) {
         mCellLayout = cellLayout;