tree: add recursive flag to expansion methods

src/vs/base/browser/ui/tree/abstractTree.ts

@@ -308,12 +308,12 @@ export abstract class AbstractTree<T, TFilterData, TRef> implements IDisposable
 		return this.model.getNode(location);
 	}
 
-	collapse(location: TRef): boolean {
-		return this.model.setCollapsed(location, true);
+	collapse(location: TRef, recursive: boolean = false): boolean {
+		return this.model.setCollapsed(location, true, recursive);
 	}
 
-	expand(location: TRef): boolean {
-		return this.model.setCollapsed(location, false);
+	expand(location: TRef, recursive: boolean = false): boolean {
+		return this.model.setCollapsed(location, false, recursive);
 	}
 
 	toggleCollapsed(location: TRef, recursive: boolean = false): void {

src/vs/base/browser/ui/tree/asyncDataTree.ts

@@ -291,18 +291,18 @@ export class AsyncDataTree<T extends NonNullable<any>, TFilterData = void> imple
 		return new AsyncDataTreeNodeWrapper<T | null, TFilterData>(node);
 	}
 
-	collapse(element: T): boolean {
-		return this.tree.collapse(this.getDataNode(element));
+	collapse(element: T, recursive: boolean = false): boolean {
+		return this.tree.collapse(this.getDataNode(element), recursive);
 	}
 
-	async expand(element: T): Promise<boolean> {
+	async expand(element: T, recursive: boolean = false): Promise<boolean> {
 		const node = this.getDataNode(element);
 
 		if (!this.tree.isCollapsed(node)) {
 			return false;
 		}
 
-		this.tree.expand(node);
+		this.tree.expand(node, recursive);
 
 		if (node.state !== AsyncDataTreeNodeState.Loaded) {
 			await this.refreshNode(node, false, ChildrenResolutionReason.Expand);
@@ -311,8 +311,8 @@ export class AsyncDataTree<T extends NonNullable<any>, TFilterData = void> imple
 		return true;
 	}
 
-	toggleCollapsed(element: T): void {
-		this.tree.toggleCollapsed(this.getDataNode(element));
+	toggleCollapsed(element: T, recursive: boolean = false): void {
+		this.tree.toggleCollapsed(this.getDataNode(element), recursive);
 	}
 
 	expandAll(): void {