Hide webview view icons when the view is collapsed

Follow up on microsoft#185864

Otherwise always show them when the view is visible

src/vs/workbench/browser/parts/views/media/paneviewlet.css

@@ -15,7 +15,8 @@
 	position: relative;
 }
 
-.monaco-pane-view .pane > .pane-header > .actions.show {
+.monaco-pane-view .pane > .pane-header > .actions.show-always,
+.monaco-pane-view .pane.expanded > .pane-header > .actions.show-expanded {
 	display: initial;
 }
 

src/vs/workbench/browser/parts/views/viewPane.ts

@@ -47,11 +47,22 @@ import { BaseActionViewItem } from 'vs/base/browser/ui/actionbar/actionViewItems
 import { ServiceCollection } from 'vs/platform/instantiation/common/serviceCollection';
 import { defaultButtonStyles, defaultProgressBarStyles } from 'vs/platform/theme/browser/defaultStyles';
 
+export enum ViewPaneShowActions {
+	/** Show the actions when the view is hovered. This is the default behavior. */
+	Default,
+
+	/** Always shows the actions when the view is expanded */
+	WhenExpanded,
+
+	/** Always shows the actions */
+	Always,
+}
+
 export interface IViewPaneOptions extends IPaneOptions {
-	id: string;
-	showActionsAlways?: boolean;
-	titleMenuId?: MenuId;
-	donotForwardArgs?: boolean;
+	readonly id: string;
+	readonly showActions?: ViewPaneShowActions;
+	readonly titleMenuId?: MenuId;
+	readonly donotForwardArgs?: boolean;
 }
 
 export interface IFilterViewPaneOptions extends IViewPaneOptions {
@@ -188,7 +199,7 @@ export abstract class ViewPane extends Pane implements IView {
 	private progressIndicator!: IProgressIndicator;
 
 	private toolbar?: WorkbenchToolBar;
-	private readonly showActionsAlways: boolean = false;
+	private readonly showActions: ViewPaneShowActions;
 	private headerContainer?: HTMLElement;
 	private titleContainer?: HTMLElement;
 	private titleDescriptionContainer?: HTMLElement;
@@ -219,7 +230,7 @@ export abstract class ViewPane extends Pane implements IView {
 		this.id = options.id;
 		this._title = options.title;
 		this._titleDescription = options.titleDescription;
-		this.showActionsAlways = !!options.showActionsAlways;
+		this.showActions = options.showActions ?? ViewPaneShowActions.Default;
 
 		this.scopedContextKeyService = this._register(contextKeyService.createScoped(this.element));
 		this.scopedContextKeyService.createKey('view', this.id);
@@ -288,7 +299,8 @@ export abstract class ViewPane extends Pane implements IView {
 		this.renderHeaderTitle(container, this.title);
 
 		const actions = append(container, $('.actions'));
-		actions.classList.toggle('show', this.showActionsAlways);
+		actions.classList.toggle('show-always', this.showActions === ViewPaneShowActions.Always);
+		actions.classList.toggle('show-expanded', this.showActions === ViewPaneShowActions.WhenExpanded);
 		this.toolbar = this.instantiationService.createInstance(WorkbenchToolBar, actions, {
 			orientation: ActionsOrientation.HORIZONTAL,
 			actionViewItemProvider: action => this.getActionViewItem(action),

src/vs/workbench/contrib/extensions/browser/extensionsViews.ts

@@ -29,7 +29,7 @@ import { ManageExtensionAction, getContextMenuActions, ExtensionAction } from 'v
 import { WorkbenchPagedList } from 'vs/platform/list/browser/listService';
 import { IConfigurationService } from 'vs/platform/configuration/common/configuration';
 import { INotificationService, Severity } from 'vs/platform/notification/common/notification';
-import { ViewPane, IViewPaneOptions } from 'vs/workbench/browser/parts/views/viewPane';
+import { ViewPane, IViewPaneOptions, ViewPaneShowActions } from 'vs/workbench/browser/parts/views/viewPane';
 import { IWorkspaceContextService } from 'vs/platform/workspace/common/workspace';
 import { coalesce, distinct, flatten } from 'vs/base/common/arrays';
 import { alert } from 'vs/base/browser/ui/aria/aria';
@@ -150,7 +150,7 @@ export class ExtensionsListView extends ViewPane {
 	) {
 		super({
 			...(viewletViewOptions as IViewPaneOptions),
-			showActionsAlways: true,
+			showActions: ViewPaneShowActions.Always,
 			maximumBodySize: options.flexibleHeight ? (storageService.getNumber(`${viewletViewOptions.id}.size`, StorageScope.PROFILE, 0) ? undefined : 0) : undefined
 		}, keybindingService, contextMenuService, configurationService, contextKeyService, viewDescriptorService, instantiationService, openerService, themeService, telemetryService);
 		if (this.options.onDidChangeTitle) {

src/vs/workbench/contrib/webviewView/browser/webviewViewPane.ts

@@ -20,7 +20,7 @@ import { IProgressService } from 'vs/platform/progress/common/progress';
 import { IStorageService, StorageScope, StorageTarget } from 'vs/platform/storage/common/storage';
 import { ITelemetryService } from 'vs/platform/telemetry/common/telemetry';
 import { IThemeService } from 'vs/platform/theme/common/themeService';
-import { ViewPane } from 'vs/workbench/browser/parts/views/viewPane';
+import { ViewPane, ViewPaneShowActions } from 'vs/workbench/browser/parts/views/viewPane';
 import { IViewletViewOptions } from 'vs/workbench/browser/parts/views/viewsViewlet';
 import { Memento, MementoObject } from 'vs/workbench/common/memento';
 import { IViewBadge, IViewDescriptorService, IViewsService } from 'vs/workbench/common/views';
@@ -84,7 +84,7 @@ export class WebviewViewPane extends ViewPane {
 		@IWebviewService private readonly webviewService: IWebviewService,
 		@IWebviewViewService private readonly webviewViewService: IWebviewViewService,
 	) {
-		super({ ...options, titleMenuId: MenuId.ViewTitle, showActionsAlways: true }, keybindingService, contextMenuService, configurationService, contextKeyService, viewDescriptorService, instantiationService, openerService, themeService, telemetryService);
+		super({ ...options, titleMenuId: MenuId.ViewTitle, showActions: ViewPaneShowActions.WhenExpanded }, keybindingService, contextMenuService, configurationService, contextKeyService, viewDescriptorService, instantiationService, openerService, themeService, telemetryService);
 		this.extensionId = options.fromExtensionId;
 		this.defaultTitle = this.title;