Add refresh button to toolBar

src/vs/workbench/parts/explorers/browser/treeExplorerActions.ts

+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+'use strict';
+
+import { TPromise } from 'vs/base/common/winjs.base';
+import * as nls from 'vs/nls';
+import { Action } from 'vs/base/common/actions';
+
+export class RefreshViewExplorerAction extends Action {
+
+	constructor() {
+		super('workbench.action.customTreeExplorer.refresh', nls.localize('refresh', "Refresh"), 'customTreeExplorer-action toggle', true, () => {
+			return TPromise.as(null);
+		});
+	}
+}
\ No newline at end of file

src/vs/workbench/parts/explorers/browser/treeExplorerViewlet.contribution.ts

@@ -4,6 +4,8 @@
  *--------------------------------------------------------------------------------------------*/
 'use strict';
 
+import 'vs/css!../media/treeExplorer.contribution';
+
 import { ITreeExplorerViewletService, TreeExplorerViewletService } from 'vs/workbench/parts/explorers/browser/treeExplorerViewletService';
 import { registerSingleton } from 'vs/platform/instantiation/common/extensions';
 

src/vs/workbench/parts/explorers/browser/treeExplorerViewlet.ts

@@ -7,6 +7,7 @@
 import { TPromise } from 'vs/base/common/winjs.base';
 import { Builder, Dimension } from 'vs/base/browser/builder';
 import { Orientation } from 'vs/base/browser/ui/splitview/splitview';
+import { IAction } from 'vs/base/common/actions';
 import { IViewletView, Viewlet } from 'vs/workbench/browser/viewlet';
 import { ITelemetryService } from 'vs/platform/telemetry/common/telemetry';
 import { IInstantiationService } from 'vs/platform/instantiation/common/instantiation';
@@ -14,6 +15,7 @@ import { TreeExplorerView } from 'vs/workbench/parts/explorers/browser/views/tre
 import { TreeExplorerViewletState } from 'vs/workbench/parts/explorers/browser/views/treeExplorerViewer';
 import { IActivityService } from 'vs/workbench/services/activity/common/activityService';
 import { VIEWLET_ID_ROOT } from 'vs/workbench/parts/explorers/common/treeExplorer';
+import { RefreshViewExplorerAction } from 'vs/workbench/parts/explorers/browser/treeExplorerActions';
 
 export class TreeExplorerViewlet extends Viewlet {
 	private static _idCounter = 1;
@@ -64,6 +66,11 @@ export class TreeExplorerViewlet extends Viewlet {
 		});
 	}
 
+	getActions(): IAction[] {
+		const refresh = this.instantiationService.createInstance(RefreshViewExplorerAction);
+		return [refresh];
+	}
+
 	private addTreeView(treeNodeProviderId: string): void {
 		// Hide header (root node) by default
 		const headerSize = 0;

src/vs/workbench/parts/explorers/browser/views/treeExplorerView.ts

@@ -10,7 +10,7 @@ import * as DOM from 'vs/base/browser/dom';
 import { Builder, $ } from 'vs/base/browser/builder';
 import { IWorkspace } from 'vs/platform/workspace/common/workspace';
 import { CollapsibleViewletView } from 'vs/workbench/browser/viewlet';
-import { IActionRunner, IAction } from 'vs/base/common/actions';
+import { IActionRunner } from 'vs/base/common/actions';
 import { IMessageService } from 'vs/platform/message/common/message';
 import { IKeybindingService } from 'vs/platform/keybinding/common/keybinding';
 import { IContextMenuService } from 'vs/platform/contextview/browser/contextView';
@@ -54,10 +54,6 @@ export class TreeExplorerView extends CollapsibleViewletView {
 		this.create();
 	}
 
-	renderHeader(container: HTMLElement): void {
-
-	}
-
 	renderBody(container: HTMLElement): void {
 		this.treeContainer = super.renderViewTree(container);
 		DOM.addClass(this.treeContainer, 'tree-explorer-viewlet-tree-view');
@@ -65,10 +61,6 @@ export class TreeExplorerView extends CollapsibleViewletView {
 		this.tree = this.createViewer($(this.treeContainer));
 	}
 
-	getActions(): IAction[] {
-		return [];
-	}
-
 	createViewer(container: Builder): ITree {
 		const dataSource = this.instantiationService.createInstance(TreeDataSource, this.treeNodeProviderIdName);
 		const renderer = this.instantiationService.createInstance(TreeRenderer, this.viewletState, this.actionRunner, container.getHTMLElement());

src/vs/workbench/parts/explorers/media/Refresh.svg

+<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16"><path d="M13.451 5.609l-.579-.939-1.068.812-.076.094c-.335.415-.927 1.341-1.124 2.876l-.021.165.033.163.071.345c0 1.654-1.346 3-3 3-.795 0-1.545-.311-2.107-.868-.563-.567-.873-1.317-.873-2.111 0-1.431 1.007-2.632 2.351-2.929v2.926s2.528-2.087 2.984-2.461h.012l3.061-2.582-4.919-4.1h-1.137v2.404c-3.429.318-6.121 3.211-6.121 6.721 0 1.809.707 3.508 1.986 4.782 1.277 1.282 2.976 1.988 4.784 1.988 3.722 0 6.75-3.028 6.75-6.75 0-1.245-.349-2.468-1.007-3.536z" fill="#F6F6F6"/><path d="M12.6 6.134l-.094.071c-.269.333-.746 1.096-.91 2.375.057.277.092.495.092.545 0 2.206-1.794 4-4 4-1.098 0-2.093-.445-2.817-1.164-.718-.724-1.163-1.718-1.163-2.815 0-2.206 1.794-4 4-4l.351.025v1.85s1.626-1.342 1.631-1.339l1.869-1.577-3.5-2.917v2.218l-.371-.03c-3.176 0-5.75 2.574-5.75 5.75 0 1.593.648 3.034 1.695 4.076 1.042 1.046 2.482 1.694 4.076 1.694 3.176 0 5.75-2.574 5.75-5.75-.001-1.106-.318-2.135-.859-3.012z" fill="#424242"/></svg>
\ No newline at end of file

src/vs/workbench/parts/explorers/media/Refresh_inverse.svg

+<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16"><path d="M13.451 5.609l-.579-.939-1.068.812-.076.094c-.335.415-.927 1.341-1.124 2.876l-.021.165.033.163.071.345c0 1.654-1.346 3-3 3-.795 0-1.545-.311-2.107-.868-.563-.567-.873-1.317-.873-2.111 0-1.431 1.007-2.632 2.351-2.929v2.926s2.528-2.087 2.984-2.461h.012l3.061-2.582-4.919-4.1h-1.137v2.404c-3.429.318-6.121 3.211-6.121 6.721 0 1.809.707 3.508 1.986 4.782 1.277 1.282 2.976 1.988 4.784 1.988 3.722 0 6.75-3.028 6.75-6.75 0-1.245-.349-2.468-1.007-3.536z" fill="#2D2D30"/><path d="M12.6 6.134l-.094.071c-.269.333-.746 1.096-.91 2.375.057.277.092.495.092.545 0 2.206-1.794 4-4 4-1.098 0-2.093-.445-2.817-1.164-.718-.724-1.163-1.718-1.163-2.815 0-2.206 1.794-4 4-4l.351.025v1.85s1.626-1.342 1.631-1.339l1.869-1.577-3.5-2.917v2.218l-.371-.03c-3.176 0-5.75 2.574-5.75 5.75 0 1.593.648 3.034 1.695 4.076 1.042 1.046 2.482 1.694 4.076 1.694 3.176 0 5.75-2.574 5.75-5.75-.001-1.106-.318-2.135-.859-3.012z" fill="#C5C5C5"/></svg>
\ No newline at end of file

src/vs/workbench/parts/explorers/media/treeExplorer.contribution.css

+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+.monaco-workbench .customTreeExplorer-action.toggle {
+	background: url('Refresh.svg') center center no-repeat;
+}
+
+.vs-dark .monaco-workbench .customTreeExplorer-action.toggle,
+.hc-black .monaco-workbench .customTreeExplorer-action.toggle {
+	background: url('Refresh_inverse.svg') center center no-repeat;
+}