Deprecated collapsible panel.

Removing the collapsible panel widget from the "Add widget" dialog, keeping all the bindings to keep it live for existing customers.

Author: azaslonov

src/collapsible-panel/collapsiblePanelHandlers.ts

@@ -16,22 +16,6 @@ export class CollapsiblePanelHandlers implements IWidgetHandler<CollapsiblePanel
         return !["section", "row", "column", "collapsiblePanel"].includes(dragSession.sourceBinding.name);
     }
 
-    public async getWidgetOrder(): Promise<IWidgetOrder<CollapsiblePanelModel>> {
-        const widgetOrder: IWidgetOrder<CollapsiblePanelModel> = {
-            name: "collapsiblePanel",
-            displayName: "Collapsible panel",
-            iconClass: "widget-icon widget-icon-collapsible-panel",
-            requires: ["html", "js"],
-            createModel: async () => {
-                const model = new CollapsiblePanelModel();
-                model.version = "1.1.0";
-                return model;
-            }
-        };
-
-        return widgetOrder;
-    }
-
     public getContextCommands(context: WidgetContext): IContextCommandSet {
         const gridCellContextualEditor: IContextCommandSet = {
             color: "#9C27B0",

src/collapsible-panel/collapsiblePanelModelBinder.ts

@@ -5,7 +5,7 @@ import { CollapsiblePanelContract } from "./collapsiblePanelContract";
 import { CollapsiblePanelModel } from "./collapsiblePanelModel";
 
 
-export class CollapsiblePanelModelBinder extends CollectionModelBinder implements IModelBinder<CollapsiblePanelModel>  {
+export class CollapsiblePanelModelBinder extends CollectionModelBinder implements IModelBinder<CollapsiblePanelModel> {
     constructor(
         protected readonly widgetService: IWidgetService,
         protected modelBinderSelector: ModelBinderSelector
@@ -23,7 +23,7 @@ export class CollapsiblePanelModelBinder extends CollectionModelBinder implement
 
     public async contractToModel(contract: CollapsiblePanelContract, bindingContext?: Bag<any>): Promise<CollapsiblePanelModel> {
         const model = new CollapsiblePanelModel();
-        model.styles = contract.styles;
+        model.styles = contract.styles || {};
         model.widgets = await this.getChildModels(contract.nodes, bindingContext);
         return model;
     }