[typescript] How can I listen for keypress event on the whole page?

yurzui's answer didn't work for me, it might be a different RC version, or it might be a mistake on my part. Either way, here's how I did it with my component in Angular2 RC4 (which is now quite outdated).

@Component({
    ...
    host: {
        '(document:keydown)': 'handleKeyboardEvents($event)'
    }
})
export class MyComponent {
    ...
    handleKeyboardEvents(event: KeyboardEvent) {
        this.key = event.which || event.keyCode;
    }
}

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