META-INF.resources.scripts.vendor.plugins.spinner.jquery.mousewheel.js Maven / Gradle / Ivy

Show more of this group Show more artifacts with this name
Show all versions of lightadmin Show documentation

Pluggable data management solution for Java web applications developed in a "Rapid" manner

There is a newer version: 1.2.0.RC1

/*! Copyright (c) 2011 Brandon Aaron (http://brandonaaron.net)
 * Licensed under the MIT License (LICENSE.txt).
 *
 * Thanks to: http://adomas.org/javascript-mouse-wheel/ for some pointers.
 * Thanks to: Mathias Bank(http://www.mathias-bank.de) for a scope bug fix.
 * Thanks to: Seamus Leahy for adding deltaX and deltaY
 *
 * Version: 3.0.6
 * 
 * Requires: 1.2.2+
 */

(function ( $ ) {

	var types = ['DOMMouseScroll', 'mousewheel'];

	if ( $.event.fixHooks ) {
		for ( var i = types.length; i; ) {
			$.event.fixHooks[ types[--i] ] = $.event.mouseHooks;
		}
	}

	$.event.special.mousewheel = {
		setup: function () {
			if ( this.addEventListener ) {
				for ( var i = types.length; i; ) {
					this.addEventListener( types[--i], handler, false );
				}
			} else {
				this.onmousewheel = handler;
			}
		},

		teardown: function () {
			if ( this.removeEventListener ) {
				for ( var i = types.length; i; ) {
					this.removeEventListener( types[--i], handler, false );
				}
			} else {
				this.onmousewheel = null;
			}
		}
	};

	$.fn.extend( {
					 mousewheel: function ( fn ) {
						 return fn ? this.bind( "mousewheel", fn ) : this.trigger( "mousewheel" );
					 },

					 unmousewheel: function ( fn ) {
						 return this.unbind( "mousewheel", fn );
					 }
				 } );


	function handler( event ) {
		var orgEvent = event || window.event, args = [].slice.call( arguments, 1 ), delta = 0, returnValue = true, deltaX = 0, deltaY = 0;
		event = $.event.fix( orgEvent );
		event.type = "mousewheel";

		// Old school scrollwheel delta
		if ( orgEvent.wheelDelta ) {
			delta = orgEvent.wheelDelta / 120;
		}
		if ( orgEvent.detail ) {
			delta = -orgEvent.detail / 3;
		}

		// New school multidimensional scroll (touchpads) deltas
		deltaY = delta;

		// Gecko
		if ( orgEvent.axis !== undefined && orgEvent.axis === orgEvent.HORIZONTAL_AXIS ) {
			deltaY = 0;
			deltaX = -1 * delta;
		}

		// Webkit
		if ( orgEvent.wheelDeltaY !== undefined ) {
			deltaY = orgEvent.wheelDeltaY / 120;
		}
		if ( orgEvent.wheelDeltaX !== undefined ) {
			deltaX = -1 * orgEvent.wheelDeltaX / 120;
		}

		// Add event and delta to the front of the arguments
		args.unshift( event, delta, deltaX, deltaY );

		return ($.event.dispatch || $.event.handle).apply( this, args );
	}

})( jQuery );