Revert changes to default tab renderer and tab type parameters.

Before, we needed to clamp down on these types for aria attributes. This is (a) backwards incompatible and (b) not needed anymore.

Author: jasongrout

packages/widgets/src/tabbar.ts

@@ -51,7 +51,7 @@ import {
  * property should be set to `false` when rotating nodes from CSS.
  */
 export
-class TabBar<T extends Widget> extends Widget {
+class TabBar<T> extends Widget {
   /**
    * Construct a new tab bar.
    *
@@ -1328,7 +1328,7 @@ namespace TabBar {
    * Subclasses are free to reimplement rendering methods as needed.
    */
   export
-  class Renderer<T extends Widget = Widget> implements IRenderer<T> {
+  class Renderer implements IRenderer<any> {
     /**
      * Construct a new renderer.
      */
@@ -1346,7 +1346,7 @@ namespace TabBar {
      *
      * @returns A virtual element representing the tab.
      */
-    renderTab(data: IRenderData<T>): VirtualElement {
+    renderTab(data: IRenderData<any>): VirtualElement {
       let title = data.title.caption;
       let key = this.createTabKey(data);
       let id = key;
@@ -1370,7 +1370,7 @@ namespace TabBar {
      *
      * @returns A virtual element representing the tab icon.
      */
-    renderIcon(data: IRenderData<T>): VirtualElement {
+    renderIcon(data: IRenderData<any>): VirtualElement {
       let className = this.createIconClass(data);
       return h.div({ className }, data.title.iconLabel);
     }
@@ -1382,7 +1382,7 @@ namespace TabBar {
      *
      * @returns A virtual element representing the tab label.
      */
-    renderLabel(data: IRenderData<T>): VirtualElement {
+    renderLabel(data: IRenderData<any>): VirtualElement {
       return h.div({ className: 'p-TabBar-tabLabel' }, data.title.label);
     }
 
@@ -1393,7 +1393,7 @@ namespace TabBar {
      *
      * @returns A virtual element representing the tab close icon.
      */
-    renderCloseIcon(data: IRenderData<T>): VirtualElement {
+    renderCloseIcon(data: IRenderData<any>): VirtualElement {
       return h.div({ className: 'p-TabBar-tabCloseIcon' });
     }
 
@@ -1409,7 +1409,7 @@ namespace TabBar {
      * the key is generated. This enables efficient rendering of moved
      * tabs and avoids subtle hover style artifacts.
      */
-    createTabKey(data: IRenderData<T>): string {
+    createTabKey(data: IRenderData<any>): string {
       let key = this._tabKeys.get(data.title);
       if (key === undefined) {
         key = `tab-key-${this._tabID++}`;
@@ -1425,7 +1425,7 @@ namespace TabBar {
      *
      * @returns The inline style data for the tab.
      */
-    createTabStyle(data: IRenderData<T>): ElementInlineStyle {
+    createTabStyle(data: IRenderData<any>): ElementInlineStyle {
       return { zIndex: `${data.zIndex}` };
     }
 
@@ -1436,7 +1436,7 @@ namespace TabBar {
      *
      * @returns The full class name for the tab.
      */
-    createTabClass(data: IRenderData<T>): string {
+    createTabClass(data: IRenderData<any>): string {
       let name = 'p-TabBar-tab';
       if (data.title.className) {
         name += ` ${data.title.className}`;
@@ -1457,7 +1457,7 @@ namespace TabBar {
      *
      * @returns The dataset for the tab.
      */
-    createTabDataset(data: IRenderData<T>): ElementDataset {
+    createTabDataset(data: IRenderData<any>): ElementDataset {
       return data.title.dataset;
     }
 
@@ -1468,7 +1468,7 @@ namespace TabBar {
      *
      * @returns The ARIA attributes for the tab.
      */
-    createTabARIA(data: IRenderData<T>): ElementARIAAttrs {
+    createTabARIA(data: IRenderData<any>): ElementARIAAttrs {
       return {role: 'tab', 'aria-selected': data.current.toString()};
     }
 
@@ -1479,14 +1479,14 @@ namespace TabBar {
      *
      * @returns The full class name for the tab icon.
      */
-    createIconClass(data: IRenderData<T>): string {
+    createIconClass(data: IRenderData<any>): string {
       let name = 'p-TabBar-tabIcon';
       let extra = data.title.iconClass;
       return extra ? `${name} ${extra}` : name;
     }
 
     private _tabID = 0;
-    private _tabKeys = new WeakMap<Title<T>, string>();
+    private _tabKeys = new WeakMap<Title<any>, string>();
   }
 
   /**