clean up duplicate host:{} and @HostBinding

Author: annieyw

src/cdk/tree/nested-node.ts

@@ -10,7 +10,6 @@ import {
   ContentChildren,
   Directive,
   ElementRef,
-  HostBinding,
   IterableDiffer,
   IterableDiffers,
   OnDestroy,
@@ -38,11 +37,6 @@ import {getTreeControlFunctionsMissingError} from './tree-errors';
   ]
 })
 export class CdkNestedTreeNode<T> extends CdkTreeNode<T> implements AfterContentInit, OnDestroy {
-  // tslint:disable:no-host-decorator-in-concrete
-  @HostBinding('attr.aria-expanded') _expanded = this.isExpanded;
-  @HostBinding('attr.role') _role = this.role;
-  // tslint:enable:no-host-decorator-in-concrete
-
   /** Differ used to find the changes in the data provided by the data source. */
   private _dataDiffer: IterableDiffer<T>;
 

src/material/tree/node.ts

@@ -42,10 +42,6 @@ const _MatTreeNodeMixinBase: HasTabIndexCtor & CanDisableCtor & typeof CdkTreeNo
   selector: 'mat-tree-node',
   exportAs: 'matTreeNode',
   inputs: ['disabled', 'tabIndex'],
-  host: {
-    '[attr.aria-expanded]': 'isExpanded',
-    '[attr.role]': 'role',
-  },
   providers: [{provide: CdkTreeNode, useExisting: MatTreeNode}]
 })
 export class MatTreeNode<T> extends _MatTreeNodeMixinBase<T>
@@ -88,10 +84,6 @@ export class MatTreeNodeDef<T> extends CdkTreeNodeDef<T> {
 @Directive({
   selector: 'mat-nested-tree-node',
   exportAs: 'matNestedTreeNode',
-  host: {
-    '[attr.aria-expanded]': 'isExpanded',
-    '[attr.role]': 'role',
-  },
   providers: [
     {provide: CdkNestedTreeNode, useExisting: MatNestedTreeNode},
     {provide: CdkTreeNode, useExisting: MatNestedTreeNode},

tools/public_api_guard/cdk/tree.d.ts

@@ -24,8 +24,6 @@ export declare class CdkNestedTreeNode<T> extends CdkTreeNode<T> implements Afte
     protected _children: T[];
     protected _differs: IterableDiffers;
     protected _elementRef: ElementRef<HTMLElement>;
-    _expanded: boolean;
-    _role: "treeitem" | "group";
     protected _tree: CdkTree<T>;
     nodeOutlet: QueryList<CdkTreeNodeOutlet>;
     constructor(_elementRef: ElementRef<HTMLElement>, _tree: CdkTree<T>, _differs: IterableDiffers);

tools/public_api_guard/material/tree/testing.d.ts

@@ -0,0 +1,28 @@
+export declare class MatTreeHarness extends ComponentHarness {
+    getNodes(filter?: TreeNodeHarnessFilters): Promise<MatTreeNodeHarness[]>;
+    static hostSelector: string;
+    static with(options?: TreeHarnessFilters): HarnessPredicate<MatTreeHarness>;
+}
+
+export declare class MatTreeNodeHarness extends ComponentHarness {
+    _toggle: import("@angular/cdk/testing").AsyncFactoryFn<import("@angular/cdk/testing").TestElement | null>;
+    collapse(): Promise<void>;
+    expand(): Promise<void>;
+    getLevel(): Promise<number>;
+    getText(): Promise<string>;
+    isDisabled(): Promise<boolean>;
+    isExpanded(): Promise<boolean>;
+    toggle(): Promise<void>;
+    static hostSelector: string;
+    static with(options?: TreeNodeHarnessFilters): HarnessPredicate<MatTreeNodeHarness>;
+}
+
+export interface TreeHarnessFilters extends BaseHarnessFilters {
+}
+
+export interface TreeNodeHarnessFilters extends BaseHarnessFilters {
+    disabled?: boolean;
+    expanded?: boolean;
+    level?: number;
+    text?: string | RegExp;
+}