src/vs/workbench/browser/parts/views/viewPaneContainer.ts/ViewPaneContainer/onContextMenu
class ViewPaneContainer:	private onContextMenu(event: StandardMouseEvent, viewPane: ViewPane): void {
		event.stopPropagation();
		event.preventDefault();

		const actions: IAction[] = viewPane.menuActions.getContextMenuActions();

		let anchor: { x: number, y: number } = { x: event.posx, y: event.posy };
		this.contextMenuService.showContextMenu({
			getAnchor: () => anchor,
			getActions: () => actions
		});
	}