@@ -16,19 +16,23 @@ var types = ['DOMMouseScroll', 'mousewheel'];
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$ . event . special . mousewheel = {
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setup : function ( ) {
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- if ( this . addEventListener )
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- for ( var i = types . length ; i ; )
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+ if ( this . addEventListener ) {
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+ for ( var i = types . length ; i ; ) {
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this . addEventListener ( types [ -- i ] , handler , false ) ;
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- else
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+ }
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+ } else {
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this . onmousewheel = handler ;
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+ }
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} ,
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teardown : function ( ) {
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- if ( this . removeEventListener )
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- for ( var i = types . length ; i ; )
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+ if ( this . removeEventListener ) {
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+ for ( var i = types . length ; i ; ) {
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this . removeEventListener ( types [ -- i ] , handler , false ) ;
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- else
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+ }
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+ } else {
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this . onmousewheel = null ;
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+ }
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}
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} ;
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@@ -50,8 +54,8 @@ function handler(event) {
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event . type = "mousewheel" ;
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// Old school scrollwheel delta
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- if ( event . wheelDelta ) delta = event . wheelDelta / 120 ;
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- if ( event . detail ) delta = - event . detail / 3 ;
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+ if ( event . wheelDelta ) { delta = event . wheelDelta / 120 ; }
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+ if ( event . detail ) { delta = - event . detail / 3 ; }
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// New school multidimensional scroll (touchpads) deltas
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deltaY = delta ;
@@ -63,8 +67,8 @@ function handler(event) {
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}
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// Webkit
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- if ( orgEvent . wheelDeltaY !== undefined ) deltaY = orgEvent . wheelDeltaY / 120 ;
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- if ( orgEvent . wheelDeltaX !== undefined ) deltaX = - 1 * orgEvent . wheelDeltaX / 120 ;
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+ if ( orgEvent . wheelDeltaY !== undefined ) { deltaY = orgEvent . wheelDeltaY / 120 ; }
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+ if ( orgEvent . wheelDeltaX !== undefined ) { deltaX = - 1 * orgEvent . wheelDeltaX / 120 ; }
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// Add event and delta to the front of the arguments
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args . unshift ( event , delta , deltaX , deltaY ) ;
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