https://yobit.net/js/jquery.tinyscrollbar.js?d41d8cd98f00b204e9800998ecf8427e

1var is_chatscrollactive = 0;
2;(function (factory)
3{
4    if (typeof define === 'function' && define.amd)
5    {
6        define(['jquery'], factory);
7    }
8    else if (typeof exports === 'object')
9    {
10        factory(require('jquery'));
11    }
12    else
13    {
14        factory(jQuery);
15    }
16}
17(function ($)
18{
19    "use strict";
20
21    var pluginName = "tinyscrollbar"
22    ,   defaults   =
23        {
24            axis         : 'y'    // Vertical or horizontal scrollbar? ( x || y ).
25        ,   wheel        : true   // Enable or disable the mousewheel;
26        ,   wheelSpeed   : 20     // How many pixels must the mouswheel scroll at a time.
27        ,   wheelLock    : true   // Lock default scrolling window when there is no more content.
28        ,   scrollInvert : false  // Enable invert style scrolling
29        ,   trackSize    : false  // Set the size of the scrollbar to auto or a fixed number.
30        ,   thumbSize    : false  // Set the size of the thumb to auto or a fixed number
31        }
32    ;	
33    function Plugin($container, options)
34    {
35        this.options   = $.extend({}, defaults, options);
36        this._defaults = defaults;
37        this._name     = pluginName;
38
39        var self        = this
40        ,   $viewport   = $container.find(".viewport")
41        ,   $overview   = $container.find(".overview")
42        ,   $scrollbar  = $container.find(".scrollbar")
43        ,   $track      = $scrollbar.find(".track")
44        ,   $thumb      = $scrollbar.find(".thumb")
45
46        ,   mousePosition  = 0
47
48        ,   isHorizontal   = this.options.axis === 'x'
49        ,   hasTouchEvents = ("ontouchstart" in document.documentElement)

50        ,   wheelEvent     = ("onwheel" in document || document.documentMode >= 9) ? "wheel" :
51                             (document.onmousewheel !== undefined ? "mousewheel" : "DOMMouseScroll")
52
53        ,   sizeLabel = isHorizontal ? "width" : "height"
54        ,   posiLabel = isHorizontal ? "left" : "top"
55        ;
56
57        this.contentPosition = 0;
58        this.viewportSize    = 0;
59        this.contentSize     = 0;
60        this.contentRatio    = 0;
61        this.trackSize       = 0;
62        this.trackRatio      = 0;
63        this.thumbSize       = 0;
64        this.thumbPosition   = 0;
65
66        function initialize()
67        {
68            self.update();
69            setEvents();
70
71            return self;
72        }
73
74        this.update = function(scrollTo)
75        {
76            var sizeLabelCap  = sizeLabel.charAt(0).toUpperCase() + sizeLabel.slice(1).toLowerCase();
77            this.viewportSize = $viewport[0]['offset'+ sizeLabelCap];
78            this.contentSize  = $overview[0]['scroll'+ sizeLabelCap];
79            this.contentRatio = this.viewportSize / this.contentSize;
80            this.trackSize    = this.options.trackSize || this.viewportSize;
81            this.thumbSize    = Math.min(this.trackSize, Math.max(0, (this.options.thumbSize || (this.trackSize * this.contentRatio))));
82            this.trackRatio   = this.options.thumbSize ? (this.contentSize - this.viewportSize) / (this.trackSize - this.thumbSize) : (this.contentSize / this.trackSize);
83            mousePosition     = $track.offset().top;
84
85            $scrollbar.toggleClass("disable", this.contentRatio >= 1);
86            switch (scrollTo)
87            {
88                case "bottom":
89                    this.contentPosition = this.contentSize - this.viewportSize;
90                    break;
91
92                case "relative":
93                    this.contentPosition = Math.min(Math.max(this.contentSize - this.viewportSize, 0), Math.max(0, this.contentPosition));
94                    break;
95
96                default:
97                    this.contentPosition = parseInt(scrollTo, 10) || 0;
98            }
99
100            setSize();
101
102            return self;
103        };
104
105        function setSize()
106        {
107            $thumb.css(posiLabel, self.contentPosition / self.trackRatio);
108            $overview.css(posiLabel, -self.contentPosition);
109            $scrollbar.css(sizeLabel, self.trackSize);
110            $track.css(sizeLabel, self.trackSize);
111            $thumb.css(sizeLabel, self.thumbSize);
112        }
113
114        function setEvents()
115        {
116            if(hasTouchEvents)
117            {
118                $viewport[0].ontouchstart = function(event)
119                {
120                    if(1 === event.touches.length)
121                    {
122                        event.stopPropagation();
123
124                        start(event.touches[0]);
125                    }
126                };
127            }
128            else
129            {
130                $thumb.bind("mousedown", start);
131                $track.bind("mousedown", drag);
132            }
133
134            $(window).resize(function()
135            {
136                self.update("relative");
137            });
138
139            if(self.options.wheel && window.addEventListener)
140            {
141                $container[0].addEventListener(wheelEvent, wheel, false );
142            }
143            else if(self.options.wheel)
144            {
145                $container[0].onmousewheel = wheel;
146            }
147        }
148
149        function start(event)
150        {
151            $("body").addClass("noSelect");
152
153            mousePosition      = isHorizontal ? event.pageX : event.pageY;
154            self.thumbPosition = parseInt($thumb.css(posiLabel), 10) || 0;
155
156            if(hasTouchEvents)
157            {
158                document.ontouchmove = function(event)
159                {
160                    event.preventDefault();
161                    drag(event.touches[0]);
162                };
163                document.ontouchend = end;
164            }
165            else
166            {
167                $(document).bind("mousemove", drag);
168                $(document).bind("mouseup", end);
169                $thumb.bind("mouseup", end);
170                is_chatscrollactive = 1;
171            }
172        }
173
174        function wheel(event)
175        {
176            if(self.contentRatio < 1)
177            {
178                var evntObj         = event || window.event
179                ,   deltaDir        = "delta" + self.options.axis.toUpperCase()
180                ,   wheelSpeedDelta = -(evntObj[deltaDir] || evntObj.detail || (-1 / 3 * evntObj.wheelDelta)) / 40
181                ;
182
183                self.contentPosition -= wheelSpeedDelta * self.options.wheelSpeed;
184                self.contentPosition = Math.min((self.contentSize - self.viewportSize), Math.max(0, self.contentPosition));
185
186                $container.trigger("move");
187
188                $thumb.css(posiLabel, self.contentPosition / self.trackRatio);
189                $overview.css(posiLabel, -self.contentPosition);
190
191                if(self.options.wheelLock || (self.contentPosition !== (self.contentSize - self.viewportSize) && self.contentPosition !== 0))
192                {
193                    evntObj = $.event.fix(evntObj);
194                    evntObj.preventDefault();
195                }
196            }
197        }
198
199        function drag(event)
200        {
201            if(self.contentRatio < 1)
202            {
203                var mousePositionNew   = isHorizontal ? event.pageX : event.pageY
204                ,   thumbPositionDelta = mousePositionNew - mousePosition
205                ;
206
207                if(self.options.scrollInvert && hasTouchEvents)
208                {
209                    thumbPositionDelta = mousePosition - mousePositionNew;
210                }
211
212                var thumbPositionNew = Math.min((self.trackSize - self.thumbSize), Math.max(0, self.thumbPosition + thumbPositionDelta));
213                self.contentPosition = thumbPositionNew * self.trackRatio;
214
215                $container.trigger("move");
216
217                $thumb.css(posiLabel, thumbPositionNew);
218                $overview.css(posiLabel, -self.contentPosition);
219            }
220        }
221
222        function end()
223        {
224            $("body").removeClass("noSelect");
225            $(document).unbind("mousemove", drag);
226            $(document).unbind("mouseup", end);
227            $thumb.unbind("mouseup", end);
228            document.ontouchmove = document.ontouchend = null;
229            is_chatscrollactive = 0;
230        }
231
232        return initialize();
233    }
234
235    $.fn[pluginName] = function(options)
236    {
237        return this.each(function()
238        {
239            if(!$.data(this, "plugin_" + pluginName))
240            {
241                $.data(this, "plugin_" + pluginName, new Plugin($(this), options));
242            }
243        });
244    };
245}));