(function()()

in plugin/zoom-js/zoom.js [2:28]

• 21 lines of code
• 4 McCabe index (conditional complexity)

(function(){
	var isEnabled = true;

	document.querySelector( '.reveal .slides' ).addEventListener( 'mousedown', function( event ) {
		var modifier = ( Reveal.getConfig().zoomKey ? Reveal.getConfig().zoomKey : 'alt' ) + 'Key';

		var zoomPadding = 20;
		var revealScale = Reveal.getScale();

		if( event[ modifier ] && isEnabled ) {
			event.preventDefault();

			var bounds = event.target.getBoundingClientRect();

			zoom.to({
				x: ( bounds.left * revealScale ) - zoomPadding,
				y: ( bounds.top * revealScale ) - zoomPadding,
				width: ( bounds.width * revealScale ) + ( zoomPadding * 2 ),
				height: ( bounds.height * revealScale ) + ( zoomPadding * 2 ),
				pan: false
			});
		}
	} );

	Reveal.addEventListener( 'overviewshown', function() { isEnabled = false; } );
	Reveal.addEventListener( 'overviewhidden', function() { isEnabled = true; } );
})();