icons and fixes for built-in panel moves

src/vs/workbench/browser/parts/sidebar/sidebarPart.ts

@@ -165,12 +165,7 @@ export class SidebarPart extends CompositePart<Viewlet> implements IViewletServi
 
 		const draggedItemProvider = (): { type: 'view' | 'composite', id: string } => {
 			const activeViewlet = this.getActiveViewlet()!;
-			const visibleViews = activeViewlet.getViewPaneContainer().views.filter(v => v.isVisible());
-			if (visibleViews.length === 1) {
-				return { type: 'view', id: visibleViews[0].id };
-			} else {
-				return { type: 'composite', id: activeViewlet.getId() };
-			}
+			return { type: 'composite', id: activeViewlet.getId() };
 		};
 
 		this._register(CompositeDragAndDropObserver.INSTANCE.registerDraggable(this.titleLabelElement!, draggedItemProvider, {}));

src/vs/workbench/contrib/debug/browser/debug.contribution.ts

@@ -91,6 +91,7 @@ const openPanelKb: IKeybindings = {
 const VIEW_CONTAINER: ViewContainer = Registry.as<IViewContainersRegistry>(ViewExtensions.ViewContainersRegistry).registerViewContainer({
 	id: DEBUG_PANEL_ID,
 	name: nls.localize({ comment: ['Debug is a noun in this context, not a verb.'], key: 'debugPanel' }, 'Debug Console'),
+	icon: 'codicon-debug-console',
 	ctorDescriptor: new SyncDescriptor(ViewPaneContainer, [DEBUG_PANEL_ID, { mergeViewWithContainerWhenSingleView: true, donotShowContainerTitleWhenMergedWithContainer: true }]),
 	storageId: DEBUG_PANEL_ID,
 	focusCommand: {

src/vs/workbench/contrib/markers/browser/markers.contribution.ts

@@ -113,6 +113,7 @@ class ToggleMarkersPanelAction extends ToggleViewAction {
 const VIEW_CONTAINER: ViewContainer = Registry.as<IViewContainersRegistry>(ViewContainerExtensions.ViewContainersRegistry).registerViewContainer({
 	id: Constants.MARKERS_CONTAINER_ID,
 	name: Messages.MARKERS_PANEL_TITLE_PROBLEMS,
+	icon: Codicon.warning.classNames,
 	hideIfEmpty: true,
 	order: 0,
 	ctorDescriptor: new SyncDescriptor(ViewPaneContainer, [Constants.MARKERS_CONTAINER_ID, { mergeViewWithContainerWhenSingleView: true, donotShowContainerTitleWhenMergedWithContainer: true }]),

src/vs/workbench/contrib/output/browser/output.contribution.ts

@@ -62,6 +62,7 @@ const toggleOutputActionKeybindings = {
 const VIEW_CONTAINER: ViewContainer = Registry.as<IViewContainersRegistry>(ViewContainerExtensions.ViewContainersRegistry).registerViewContainer({
 	id: OUTPUT_VIEW_ID,
 	name: nls.localize('output', "Output"),
+	icon: Codicon.output.classNames,
 	order: 1,
 	ctorDescriptor: new SyncDescriptor(ViewPaneContainer, [OUTPUT_VIEW_ID, { mergeViewWithContainerWhenSingleView: true, donotShowContainerTitleWhenMergedWithContainer: true }]),
 	storageId: OUTPUT_VIEW_ID,

src/vs/workbench/contrib/terminal/browser/terminal.contribution.ts

@@ -68,6 +68,7 @@ if (platform.isWeb) {
 const VIEW_CONTAINER = Registry.as<IViewContainersRegistry>(ViewContainerExtensions.ViewContainersRegistry).registerViewContainer({
 	id: TERMINAL_VIEW_ID,
 	name: nls.localize('terminal', "Terminal"),
+	icon: 'codicon-terminal',
 	ctorDescriptor: new SyncDescriptor(ViewPaneContainer, [TERMINAL_VIEW_ID, { mergeViewWithContainerWhenSingleView: true, donotShowContainerTitleWhenMergedWithContainer: true }]),
 	storageId: TERMINAL_VIEW_ID,
 	focusCommand: { id: TERMINAL_COMMAND_ID.FOCUS },

src/vs/workbench/services/views/browser/viewDescriptorService.ts

@@ -312,6 +312,9 @@ export class ViewDescriptorService extends Disposable implements IViewDescriptor
 
 			this._onDidChangeContainerLocation.fire({ viewContainer, from, to });
 
+			const views = this.getViewsByContainer(viewContainer);
+			this._onDidChangeLocation.fire({ views, from, to });
+
 			this.saveViewContainerLocationsToCache();
 		}
 	}