ecomp-portal-FE/client/bower_components/jquery.event.drag-new/event.wheel/jquery.event.wheel.js

   1 /*!
   2  * jquery.event.wheel - v 1.0.0 - http://jquery-ux.com/
   3  * Copyright (c) 2010 Michael Helgeson, Three Dub Media
   4  * Open Source MIT License - http://jquery-ux.com/license
   5  */
   6 // Created: 2008-07-01
   7 // Updated: 2010-01-08
   8 // REQUIRES: jquery 1.3+
   9
  10 ;(function( $ ){ // secure $ jQuery alias
  11
  12 // jquery method
  13 $.fn.wheel = function( fn ){
  14         return this[ fn ? "bind" : "trigger" ]( "wheel", fn );
  15 };
  16
  17 // special event config
  18 var wheel = $.event.special.wheel = {
  19         events: "DOMMouseScroll mousewheel" // IE, opera, safari, firefox
  20                 +( $.browser.mozilla && $.browser.version < "1.9" ? " mousemove" : "" ), // firefox 2
  21         setup: function(){
  22                 $.event.add( this, wheel.events, wheel.handler, {} );
  23         },
  24         teardown: function(){
  25                 $.event.remove( this, wheel.events, wheel.handler );
  26         },
  27         handler: function( event ){
  28                 switch ( event.type ){
  29                         case "mousewheel": // IE, opera, safari
  30                                 event.delta = event.wheelDelta/120;
  31                                 if ( window.opera ){
  32                                         event.delta *= -1;
  33                                 }
  34                                 break;
  35                         case     "DOMMouseScroll": // firefox
  36                                 $.extend( event, event.data ); // fix event properties in FF2
  37                                 event.delta = -event.detail/3;
  38                                 break;
  39                         case "mousemove": // FF2 has incorrect event positions
  40                                 return $.extend( event.data, { // store the correct properties
  41                                         clientX: event.clientX, pageX: event.pageX,
  42                                         clientY: event.clientY, pageY: event.pageY
  43                                 });
  44                 }
  45                 event.type = "wheel"; // hijack the event
  46                 return $.event.handle.call( this, event, event.delta );
  47         }
  48 };
  49
  50 })( jQuery ); // confine scope