https://www.cliomusic.com/wp-content/themes/ClioMusic/js/jquery.acrs.js

1(function ($) {
2    // Monkey patch jQuery 1.3.1+ to add support for setting or animating CSS
3    // scale and rotation independently.
4    // 2009-2010 Zachary Johnson www.zachstronaut.com
5    // Updated 2010.11.06
6    var rotateUnits = 'deg';
7    
8    $.fn.rotate = function (val)
9    {
10        var style = $(this).css('transform') || 'none';
11        
12        if (typeof val == 'undefined')
13        {
14            if (style)
15            {
16                var m = style.match(/rotate\(([^)]+)\)/);
17                if (m && m[1])
18                {
19                    return m[1];
20                }
21            }
22            
23            return 0;
24        }
25        
26        var m = val.toString().match(/^(-?\d+(\.\d+)?)(.+)?$/);
27        if (m)
28        {
29            if (m[3])
30            {
31                rotateUnits = m[3];
32            }
33            
34            $(this).css(
35                'transform',
36                style.replace(/none|rotate\([^)]*\)/, '') + 'rotate(' + m[1] + rotateUnits + ')'
37            );
38        }
39        
40        return this;
41    }
42    
43    // Note that scale is unitless.
44    $.fn.scale = function (val, duration, options)
45    {
46        var style = $(this).css('transform');
47        
48        if (typeof val == 'undefined')
49        {
50            if (style)
51            {
52                var m = style.match(/scale\(([^)]+)\)/);
53                if (m && m[1])
54                {
55                    return m[1];
56                }
57            }
58            
59            return 1;
60        }
61        
62        $(this).css(
63            'transform',
64            style.replace(/none|scale\([^)]*\)/, '') + 'scale(' + val + ')'
65        );
66        
67        return this;
68    }
69
70    // fx.cur() must be monkey patched because otherwise it would always
71    // return 0 for current rotate and scale values
72    var curProxied = $.fx.prototype.cur;
73    $.fx.prototype.cur = function ()
74    {
75        if (this.prop == 'rotate')
76        {
77            return parseFloat($(this.elem).rotate());
78        }
79        else if (this.prop == 'scale')
80        {
81            return parseFloat($(this.elem).scale());
82        }
83        
84        return curProxied.apply(this, arguments);
85    }
86    
87    $.fx.step.rotate = function (fx)
88    {
89        $(fx.elem).rotate(fx.now + rotateUnits);
90    }
91    
92    $.fx.step.scale = function (fx)
93    {
94        $(fx.elem).scale(fx.now);
95    }
96    
97    /*
98    
99    Starting on line 3905 of jquery-1.3.2.js we have this code:
100    
101    // We need to compute starting value
102    if ( unit != "px" ) {
103        self.style[ name ] = (end || 1) + unit;
104        start = ((end || 1) / e.cur(true)) * start;
105        self.style[ name ] = start + unit;
106    }
107    
108    This creates a problem where we cannot give units to our custom animation
109    because if we do then this code will execute and because self.style[name]
110    does not exist where name is our custom animation's name then e.cur(true)
111    will likely return zero and create a divide by zero bug which will set
112    start to NaN.
113    
114    The following monkey patch for animate() gets around this by storing the
115    units used in the rotation definition and then stripping the units off.
116    
117    */
118    
119    var animateProxied = $.fn.animate;
120    $.fn.animate = function (prop)
121    {
122        if (typeof prop['rotate'] != 'undefined')
123        {
124            var m = prop['rotate'].toString().match(/^(([+-]=)?(-?\d+(\.\d+)?))(.+)?$/);
125            if (m && m[5])
126            {
127                rotateUnits = m[5];
128            }
129            
130            prop['rotate'] = m[1];
131        }
132        
133        return animateProxied.apply(this, arguments);
134    }
135})(jQuery);