Add back pWidget typing in subclasses

Author: davidbrochart

packages/controls/src/widget_box.ts

@@ -136,6 +136,7 @@ export class BoxView extends DOMWidgetView {
   }
 
   children_views: ViewList<DOMWidgetView> | null;
+  pWidget: JupyterLuminoPanelWidget;
   lmWidget: JupyterLuminoPanelWidget;
 
   static class_map = {

packages/controls/src/widget_controller.ts

@@ -429,5 +429,6 @@ export class ControllerView extends DOMWidgetView {
   axis_box: Panel;
   button_box: Panel;
   model: ControllerModel;
+  pWidget: JupyterLuminoPanelWidget;
   lmWidget: JupyterLuminoPanelWidget;
 }

packages/controls/src/widget_selectioncontainer.ts

@@ -209,6 +209,7 @@ export class AccordionView extends DOMWidgetView {
   }
 
   children_views: ViewList<DOMWidgetView> | null;
+  pWidget: Accordion;
   lmWidget: Accordion;
   updatingChildren: boolean;
 }
@@ -423,6 +424,7 @@ export class TabView extends DOMWidgetView {
 
   updatingTabs = false;
   childrenViews: ViewList<DOMWidgetView> | null;
+  pWidget: JupyterLuminoTabPanelWidget;
   lmWidget: JupyterLuminoTabPanelWidget;
 }
 

packages/html-manager/src/output.ts

@@ -69,5 +69,6 @@ export class OutputView extends outputBase.OutputView {
 
   model: OutputModel;
   private _outputView: OutputArea;
+  pWidget: Panel;
   lmWidget: Panel;
 }