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/*!
* jquery.event.wheel - v 1.0.0 - http://jquery-ux.com/
* Copyright (c) 2010 Michael Helgeson, Three Dub Media
* Open Source MIT License - http://jquery-ux.com/license
*/
// Created: 2008-07-01
// Updated: 2010-01-08
// REQUIRES: jquery 1.3+
;(function( $ ){ // secure $ jQuery alias
// jquery method
$.fn.wheel = function( fn ){
return this[ fn ? "bind" : "trigger" ]( "wheel", fn );
};
// special event config
var wheel = $.event.special.wheel = {
events: "DOMMouseScroll mousewheel" // IE, opera, safari, firefox
+( $.browser.mozilla && $.browser.version < "1.9" ? " mousemove" : "" ), // firefox 2
setup: function(){
$.event.add( this, wheel.events, wheel.handler, {} );
},
teardown: function(){
$.event.remove( this, wheel.events, wheel.handler );
},
handler: function( event ){
switch ( event.type ){
case "mousewheel": // IE, opera, safari
event.delta = event.wheelDelta/120;
if ( window.opera ){
event.delta *= -1;
}
break;
case "DOMMouseScroll": // firefox
$.extend( event, event.data ); // fix event properties in FF2
event.delta = -event.detail/3;
break;
case "mousemove": // FF2 has incorrect event positions
return $.extend( event.data, { // store the correct properties
clientX: event.clientX, pageX: event.pageX,
clientY: event.clientY, pageY: event.pageY
});
}
event.type = "wheel"; // hijack the event
return $.event.handle.call( this, event, event.delta );
}
};
})( jQuery ); // confine scope
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