src/vs/workbench/contrib/preferences/browser/keybindingsEditor.ts/KeybindingsEditor/activeKeybindingEntry
class KeybindingsEditor:	get activeKeybindingEntry(): IKeybindingItemEntry | null {
		const focusedElement = this.keybindingsTable.getFocusedElements()[0];
		return focusedElement && focusedElement.templateId === KEYBINDING_ENTRY_TEMPLATE_ID ? <IKeybindingItemEntry>focusedElement : null;
	}