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| author | Hakim El Hattab <hakim.elhattab@gmail.com> | 2013-10-10 09:20:54 -0400 |
|---|---|---|
| committer | Hakim El Hattab <hakim.elhattab@gmail.com> | 2013-10-10 09:21:06 -0400 |
| commit | 1421934fde119e20cee8490a5fb57f8db825b9c0 (patch) | |
| tree | 1980c4171b689a272b6eca1a61581b4ad5a7933e /js/reveal.js | |
| parent | a14386147812f487572066b1f8b69df6bff46d2e (diff) | |
| download | freenode-live-2017-presentation-1421934fde119e20cee8490a5fb57f8db825b9c0.tar freenode-live-2017-presentation-1421934fde119e20cee8490a5fb57f8db825b9c0.tar.gz | |
code style
Diffstat (limited to 'js/reveal.js')
| -rw-r--r-- | js/reveal.js | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/js/reveal.js b/js/reveal.js index 600a763..e6368d6 100644 --- a/js/reveal.js +++ b/js/reveal.js @@ -615,15 +615,20 @@ var Reveal = (function(){ if( config.focusBodyOnPageVisiblityChange ) { var visibilityChange; - if ('hidden' in document) { + + if( 'hidden' in document ) { visibilityChange = 'visibilitychange'; - } else if ('msHidden' in document) { + } + else if( 'msHidden' in document ) { visibilityChange = 'msvisibilitychange'; - } else if ('webkitHidden' in document) { + } + else if( 'webkitHidden' in document ) { visibilityChange = 'webkitvisibilitychange'; } - document.addEventListener(visibilityChange, onPageVisibilityChange, false); + if( visibilityChange ) { + document.addEventListener( visibilityChange, onPageVisibilityChange, false ); + } } [ 'touchstart', 'click' ].forEach( function( eventName ) { |