window.showQuickPick is not closed when promise is rejected

src/vs/workbench/api/browser/pluginHostQuickOpen.ts

@@ -67,6 +67,10 @@ export class PluginHostQuickOpen {
 					return items[handle];
 				}
 			});
+		}, (err) => {
+			this._proxy._setError(err);
+
+			return TPromise.wrapError(err);
 		});
 	}
 
@@ -80,6 +84,7 @@ export class MainThreadQuickOpen {
 
 	private _quickOpenService: IQuickOpenService;
 	private _doSetItems: (items: MyQuickPickItems[]) => any;
+	private _doSetError: (error: Error) => any;
 	private _contents: TPromise<MyQuickPickItems[]>;
 	private _token = 0;
 
@@ -97,6 +102,12 @@ export class MainThreadQuickOpen {
 					c(items);
 				}
 			};
+
+			this._doSetError = (error) => {
+				if (myToken === this._token) {
+					e(error);
+				}
+			};
 		});
 
 		return this._quickOpenService.pick(this._contents, options).then(item => {
@@ -113,6 +124,13 @@ export class MainThreadQuickOpen {
 		}
 	}
 
+	_setError(error: Error): Thenable<any> {
+		if (this._doSetError) {
+			this._doSetError(error);
+			return;
+		}
+	}
+
 	_input(options?: InputBoxOptions): Thenable<string> {
 		return this._quickOpenService.input(options);
 	}

src/vs/workbench/browser/parts/quickopen/quickOpenController.ts

@@ -209,7 +209,11 @@ export class QuickOpenController extends WorkbenchComponent implements IQuickOpe
 					onOk: () => { /* ignore, handle later */ },
 					onCancel: () => { /* ignore, handle later */ },
 					onType: (value: string) => { /* ignore, handle later */ },
-					onShow: () => this.emitQuickOpenVisibilityChange(true)
+					onShow: () => this.emitQuickOpenVisibilityChange(true),
+					onHide: () => {
+						this.restoreFocus(); // focus back to editor or viewlet
+						this.emitQuickOpenVisibilityChange(false); // event
+					}
 				}, {
 					inputPlaceHolder: options.placeHolder || ''
 				},