diff options
| -rw-r--r-- | plugin/zoom-js/zoom.js | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/plugin/zoom-js/zoom.js b/plugin/zoom-js/zoom.js index a672af4..da2c10a 100644 --- a/plugin/zoom-js/zoom.js +++ b/plugin/zoom-js/zoom.js @@ -5,9 +5,21 @@ document.querySelector( '.reveal' ).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(); - zoom.to({ element: event.target, pan: false }); + + 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 + }); } } ); |