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@ -408,7 +408,7 @@ var Reveal = (function(){ |
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} |
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if ( config.controls && dom.controls ) { |
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var actionEvent = 'ontouchstart' in window ? 'touchstart' : 'click'; |
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var actionEvent = 'ontouchstart' in window && window.ontouchstart != null ? 'touchstart' : 'click'; |
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dom.controlsLeft.forEach( function( el ) { el.addEventListener( actionEvent, onNavigateLeftClicked, false ); } ); |
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dom.controlsRight.forEach( function( el ) { el.addEventListener( actionEvent, onNavigateRightClicked, false ); } ); |
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dom.controlsUp.forEach( function( el ) { el.addEventListener( actionEvent, onNavigateUpClicked, false ); } ); |
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