checkbox api event naming change (microsoft#161131)

Author: benibenj

src/vs/workbench/api/common/extHostTreeViews.ts

@@ -100,7 +100,7 @@ export class ExtHostTreeViews implements ExtHostTreeViewsShape {
 			get onDidChangeSelection() { return treeView.onDidChangeSelection; },
 			get visible() { return treeView.visible; },
 			get onDidChangeVisibility() { return treeView.onDidChangeVisibility; },
-			get onDidChangeTreeCheckbox() { checkProposedApiEnabled(extension, 'treeItemCheckbox'); return treeView.onDidChangeTreeCheckbox; },
+			get onDidChangeCheckboxState() { checkProposedApiEnabled(extension, 'treeItemCheckbox'); return treeView.onDidChangeCheckboxState; },
 			get message() { return treeView.message; },
 			set message(message: string) {
 				treeView.message = message;
@@ -306,8 +306,8 @@ class ExtHostTreeView<T> extends Disposable {
 	private _onDidChangeVisibility: Emitter<vscode.TreeViewVisibilityChangeEvent> = this._register(new Emitter<vscode.TreeViewVisibilityChangeEvent>());
 	readonly onDidChangeVisibility: Event<vscode.TreeViewVisibilityChangeEvent> = this._onDidChangeVisibility.event;
 
-	private _onDidChangeTreeCheckbox = this._register(new Emitter<vscode.TreeCheckboxChangeEvent<T>>());
-	readonly onDidChangeTreeCheckbox: Event<vscode.TreeCheckboxChangeEvent<T>> = this._onDidChangeTreeCheckbox.event;
+	private _onDidChangeCheckboxState = this._register(new Emitter<vscode.TreeCheckboxChangeEvent<T>>());
+	readonly onDidChangeCheckboxState: Event<vscode.TreeCheckboxChangeEvent<T>> = this._onDidChangeCheckboxState.event;
 
 	private _onDidChangeData: Emitter<TreeData<T>> = this._register(new Emitter<TreeData<T>>());
 
@@ -504,7 +504,7 @@ class ExtHostTreeView<T> extends Disposable {
 			item.treeItem.checkboxState = item.newState ? TreeItemCheckboxState.Checked : TreeItemCheckboxState.Unchecked;
 		});
 
-		this._onDidChangeTreeCheckbox.fire({ items: items.map(item => [item.extensionItem, item.newState]) });
+		this._onDidChangeCheckboxState.fire({ items: items.map(item => [item.extensionItem, item.newState]) });
 	}
 
 	async handleDrag(sourceTreeItemHandles: TreeItemHandle[], treeDataTransfer: vscode.DataTransfer, token: CancellationToken): Promise<vscode.DataTransfer | undefined> {

src/vscode-dts/vscode.proposed.treeItemCheckbox.d.ts

@@ -33,7 +33,7 @@ declare module 'vscode' {
 		/**
 		* An event to signal that an element or root has either been checked or unchecked.
 		*/
-		onDidChangeTreeCheckbox: Event<TreeCheckboxChangeEvent<T>>;
+		onDidChangeCheckboxState: Event<TreeCheckboxChangeEvent<T>>;
 	}
 
 	export interface TreeCheckboxChangeEvent<T> {