Provide API to open a new folder (fixes #58)

src/vs/platform/instantiation/common/instantiation.ts

@@ -132,6 +132,8 @@ export interface IInstantiationService {
 	createInstance<A1, A2, A3, A4, A5, A6, A7, T>(descriptor: descriptors.SyncDescriptor7<A1, A2, A3, A4, A5, A6, A7, T>, a1: A1, a2: A2, a3: A3, a4: A4, a5: A5, a6: A6, a7: A7): T;
 	createInstance<A1, A2, A3, A4, A5, A6, A7, A8, T>(descriptor: descriptors.SyncDescriptor8<A1, A2, A3, A4, A5, A6, A7, A8, T>, a1: A1, a2: A2, a3: A3, a4: A4, a5: A5, a6: A6, a7: A7, a8: A8): T;
 
+	createInstance<T>(descriptor: descriptors.SyncDescriptor0<T>, ...args: any[]): T;
+
 	createInstance<T>(ctor: IConstructorSignature0<T>): T;
 	createInstance<A1, T>(ctor: IConstructorSignature1<A1, T>, first: A1): T;
 	createInstance<A1, A2, T>(ctor: IConstructorSignature2<A1, A2, T>, first: A1, second: A2): T;

src/vs/workbench/api/node/extHostApiCommands.ts

@@ -10,6 +10,7 @@ import {IDisposable} from 'vs/base/common/lifecycle';
 import * as vscode from 'vscode';
 import * as typeConverters from 'vs/workbench/api/node/extHostTypeConverters';
 import * as types from 'vs/workbench/api/node/extHostTypes';
+import {isMacintosh} from 'vs/base/common/platform';
 import {ISingleEditOperation} from 'vs/editor/common/editorCommon';
 import * as modes from 'vs/editor/common/modes';
 import {ICommandHandlerDescription} from 'vs/platform/keybinding/common/keybindingService';
@@ -162,6 +163,13 @@ class ExtHostApiCommands {
 				{ name: 'column', description: '(optional) Column in which to preview.' },
 			]
 		});
+
+		this._register('vscode.openFolder', (uri: URI) => this._commands.executeCommand(isMacintosh ? 'workbench.action.files.openFileFolder' : 'workbench.action.files.openFolder', uri), {
+			description: 'Open a folder in the current window.',
+			args: [
+				{ name: 'uri', description: 'Uri of the folder to open.', constraint: URI }
+			]
+		});
 	}
 
 	// --- command impl

src/vs/workbench/common/actionRegistry.ts

@@ -142,7 +142,7 @@ export function createCommandHandler(descriptor: SyncActionDescriptor): ICommand
 }
 
 export function triggerAndDisposeAction(instantitationService: IInstantiationService, telemetryService: ITelemetryService, partService: IPartService, descriptor: SyncActionDescriptor, args: any): TPromise<any> {
-	let actionInstance = instantitationService.createInstance(descriptor.syncDescriptor);
+	let actionInstance = Array.isArray(args) ? instantitationService.createInstance(descriptor.syncDescriptor, ...args) : instantitationService.createInstance(descriptor.syncDescriptor);
 	actionInstance.label = descriptor.label || actionInstance.label;
 
 	// don't run the action when not enabled

src/vs/workbench/parts/files/electron-browser/electronFileActions.ts

@@ -109,17 +109,24 @@ export class GlobalCopyPathAction extends Action {
 }
 
 export class BaseOpenAction extends Action {
-
 	private ipcMsg: string;
+	private ipcArg: any;
 
-	constructor(id: string, label: string, ipcMsg: string) {
+	constructor(id: string, label: string, ipcMsg: string, ipcArg?: any) {
 		super(id, label);
 
 		this.ipcMsg = ipcMsg;
+		this.ipcArg = ipcArg;
 	}
 
 	public run(): TPromise<any> {
-		ipc.send(this.ipcMsg); // Handle in browser process
+
+		// Handle in browser process
+		if (this.ipcArg) {
+			ipc.send(this.ipcMsg, this.ipcArg);
+		} else {
+			ipc.send(this.ipcMsg);
+		}
 
 		return TPromise.as(true);
 	}
@@ -140,19 +147,18 @@ export const OPEN_FOLDER_LABEL = nls.localize('openFolder', "Open Folder...");
 
 export class OpenFolderAction extends BaseOpenAction {
 
-	constructor(id: string, label: string) {
-		super(id, label, 'vscode:openFolderPicker');
+	constructor(id: string, label: string, folderToOpen?: uri) {
+		super(id, label, folderToOpen ? 'vscode:windowOpen' : 'vscode:openFolderPicker', folderToOpen ? [folderToOpen.fsPath] : void 0);
 	}
-
 }
 
 export const OPEN_FILE_FOLDER_ID = 'workbench.action.files.openFileFolder';
 export const OPEN_FILE_FOLDER_LABEL = nls.localize('openFileFolder', "Open...");
 
 export class OpenFileFolderAction extends BaseOpenAction {
 
-	constructor(id: string, label: string) {
-		super(id, label, 'vscode:openFileFolderPicker');
+	constructor(id: string, label: string, folderToOpen?: uri) {
+		super(id, label, folderToOpen ? 'vscode:windowOpen' : 'vscode:openFileFolderPicker', folderToOpen ? [folderToOpen.fsPath] : void 0);
 	}
 }