Function Animation

2.0.3/2.0.3.js:8062–8164

( elem, properties, options )

    }

    function Animation( elem, properties, options ) {
        var result,
            stopped,
            index = 0,
            length = animationPrefilters.length,
            deferred = jQuery.Deferred().always( function() {
                // don't match elem in the :animated selector
                delete tick.elem;
            }),
            tick = function() {
                if ( stopped ) {
                    return false;
                }
                var currentTime = fxNow || createFxNow(),
                    remaining = Math.max( 0, animation.startTime + animation.duration - currentTime ),
                // archaic crash bug won't allow us to use 1 - ( 0.5 || 0 ) (#12497)
                    temp = remaining / animation.duration || 0,
                    percent = 1 - temp,
                    index = 0,
                    length = animation.tweens.length;

                for ( ; index < length ; index++ ) {
                    animation.tweens[ index ].run( percent );
                }

                deferred.notifyWith( elem, [ animation, percent, remaining ]);

                if ( percent < 1 && length ) {
                    return remaining;
                } else {
                    deferred.resolveWith( elem, [ animation ] );
                    return false;
                }
            },
            animation = deferred.promise({
                elem: elem,
                props: jQuery.extend( {}, properties ),
                opts: jQuery.extend( true, { specialEasing: {} }, options ),
                originalProperties: properties,
                originalOptions: options,
                startTime: fxNow || createFxNow(),
                duration: options.duration,
                tweens: [],
                createTween: function( prop, end ) {
                    var tween = jQuery.Tween( elem, animation.opts, prop, end,
                        animation.opts.specialEasing[ prop ] || animation.opts.easing );
                    animation.tweens.push( tween );
                    return tween;
                },
                stop: function( gotoEnd ) {
                    var index = 0,
                    // if we are going to the end, we want to run all the tweens
                    // otherwise we skip this part
                        length = gotoEnd ? animation.tweens.length : 0;
                    if ( stopped ) {
                        return this;
                    }
                    stopped = true;