src/vs/base/browser/ui/contextview/contextview.ts/ContextView/show
class ContextView:	show(delegate: IDelegate): void {
		if (this.isVisible()) {
			this.hide();
		}

		// Show static box
		DOM.clearNode(this.view);
		this.view.className = 'context-view';
		this.view.style.top = '0px';
		this.view.style.left = '0px';
		this.view.style.zIndex = '2500';
		this.view.style.position = this.useFixedPosition ? 'fixed' : 'absolute';
		DOM.show(this.view);

		// Render content
		this.toDisposeOnClean = delegate.render(this.view) || Disposable.None;

		// Set active delegate
		this.delegate = delegate;

		// Layout
		this.doLayout();

		// Focus
		this.delegate.focus?.();
	}