$.fn.extend.slimScroll - Code Metrics - Inspection of "update" - yuncms/framework - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 59ad2d...412337 )

by Xu

created 2018-03-26 04:29 UTC

$.fn.extend.slimScroll B

↳ Parent: resources/lib/jquery-slimscroll/jquery.slimscroll.js

Complexity

Conditions	1
Paths	> 20000

Size

Total Lines

457

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	1
c	1
b	0
f	0
nc	24576
nop	1
dl	0
loc	457
rs	8.2857

How to fix Long Method

/*! Copyright (c) 2011 Piotr Rochala (http://rocha.la)
 * Dual licensed under the MIT (http://www.opensource.org/licenses/mit-license.php)
 * and GPL (http://www.opensource.org/licenses/gpl-license.php) licenses.
 *
 * Version: 1.3.8
 *
 */
(function($) {

  $.fn.extend({
    slimScroll: function(options) {

      var defaults = {

        // width in pixels of the visible scroll area
        width : 'auto',

        // height in pixels of the visible scroll area
        height : '250px',

        // width in pixels of the scrollbar and rail
        size : '7px',

        // scrollbar color, accepts any hex/color value
        color: '#000',

        // scrollbar position - left/right
        position : 'right',

        // distance in pixels between the side edge and the scrollbar
        distance : '1px',

        // default scroll position on load - top / bottom / $('selector')
        start : 'top',

        // sets scrollbar opacity
        opacity : .4,

        // enables always-on mode for the scrollbar
        alwaysVisible : false,

        // check if we should hide the scrollbar when user is hovering over
        disableFadeOut : false,

        // sets visibility of the rail
        railVisible : false,

        // sets rail color
        railColor : '#333',

        // sets rail opacity
        railOpacity : .2,

        // whether  we should use jQuery UI Draggable to enable bar dragging
        railDraggable : true,

        // defautlt CSS class of the slimscroll rail
        railClass : 'slimScrollRail',

        // defautlt CSS class of the slimscroll bar
        barClass : 'slimScrollBar',

        // defautlt CSS class of the slimscroll wrapper
        wrapperClass : 'slimScrollDiv',

        // check if mousewheel should scroll the window if we reach top/bottom
        allowPageScroll : false,

        // scroll amount applied to each mouse wheel step
        wheelStep : 20,

        // scroll amount applied when user is using gestures
        touchScrollStep : 200,

        // sets border radius
        borderRadius: '7px',

        // sets border radius of the rail
        railBorderRadius : '7px'
      };

      var o = $.extend(defaults, options);

      // do it for every element that matches selector
      this.each(function(){

      var isOverPanel, isOverBar, isDragg, queueHide, touchDif,
        barHeight, percentScroll, lastScroll,
        divS = '<div></div>',
        minBarHeight = 30,
        releaseScroll = false;

        // used in event handlers and for better minification
        var me = $(this);

        // ensure we are not binding it again
        if (me.parent().hasClass(o.wrapperClass))
        {
            // start from last bar position
            var offset = me.scrollTop();

            // find bar and rail
            bar = me.siblings('.' + o.barClass);
            rail = me.siblings('.' + o.railClass);

            getBarHeight();

            // check if we should scroll existing instance
            if ($.isPlainObject(options))
            {
              // Pass height: auto to an existing slimscroll object to force a resize after contents have changed
              if ( 'height' in options && options.height == 'auto' ) {
                me.parent().css('height', 'auto');
                me.css('height', 'auto');
                var height = me.parent().parent().height();
                me.parent().css('height', height);
                me.css('height', height);
              } else if ('height' in options) {
                var h = options.height;
                me.parent().css('height', h);
                me.css('height', h);
              }

              if ('scrollTo' in options)
              {
                // jump to a static point
                offset = parseInt(o.scrollTo);
              }
              else if ('scrollBy' in options)
              {
                // jump by value pixels
                offset += parseInt(o.scrollBy);
              }
              else if ('destroy' in options)
              {
                // remove slimscroll elements
                bar.remove();
                rail.remove();
                me.unwrap();
                return;
              }

              // scroll content by the given offset
              scrollContent(offset, false, true);
            }

            return;
        }
        else if ($.isPlainObject(options))
        {
            if ('destroy' in options)
            {
            	return;
            }
        }

        // optionally set height to the parent's height
        o.height = (o.height == 'auto') ? me.parent().height() : o.height;

        // wrap content
        var wrapper = $(divS)
          .addClass(o.wrapperClass)
          .css({
            position: 'relative',
            overflow: 'hidden',
            width: o.width,
            height: o.height
          });

        // update style for the div
        me.css({
          overflow: 'hidden',
          width: o.width,
          height: o.height
        });

        // create scrollbar rail
        var rail = $(divS)
          .addClass(o.railClass)
          .css({
            width: o.size,
            height: '100%',
            position: 'absolute',
            top: 0,
            display: (o.alwaysVisible && o.railVisible) ? 'block' : 'none',
            'border-radius': o.railBorderRadius,
            background: o.railColor,
            opacity: o.railOpacity,
            zIndex: 90
          });

        // create scrollbar
        var bar = $(divS)
          .addClass(o.barClass)
          .css({
            background: o.color,
            width: o.size,
            position: 'absolute',
            top: 0,
            opacity: o.opacity,
            display: o.alwaysVisible ? 'block' : 'none',
            'border-radius' : o.borderRadius,
            BorderRadius: o.borderRadius,
            MozBorderRadius: o.borderRadius,
            WebkitBorderRadius: o.borderRadius,
            zIndex: 99
          });

        // set position
        var posCss = (o.position == 'right') ? { right: o.distance } : { left: o.distance };
        rail.css(posCss);
        bar.css(posCss);

        // wrap it
        me.wrap(wrapper);

        // append to parent div
        me.parent().append(bar);
        me.parent().append(rail);

        // make it draggable and no longer dependent on the jqueryUI
        if (o.railDraggable){
          bar.bind("mousedown", function(e) {
            var $doc = $(document);
            isDragg = true;
            t = parseFloat(bar.css('top'));

            pageY = e.pageY;


            $doc.bind("mousemove.slimscroll", function(e){
              currTop = t + e.pageY - pageY;

              bar.css('top', currTop);
              scrollContent(0, bar.position().top, false);// scroll content
            });

            $doc.bind("mouseup.slimscroll", function(e) {

              isDragg = false;hideBar();
              $doc.unbind('.slimscroll');
            });
            return false;
          }).bind("selectstart.slimscroll", function(e){
            e.stopPropagation();
            e.preventDefault();
            return false;
          });
        }

        // on rail over
        rail.hover(function(){
          showBar();
        }, function(){
          hideBar();
        });

        // on bar over
        bar.hover(function(){
          isOverBar = true;
        }, function(){
          isOverBar = false;
        });

        // show on parent mouseover
        me.hover(function(){
          isOverPanel = true;
          showBar();
          hideBar();
        }, function(){
          isOverPanel = false;
          hideBar();
        });

        // support for mobile
        me.bind('touchstart', function(e,b){

          if (e.originalEvent.touches.length)
          {
            // record where touch started
            touchDif = e.originalEvent.touches[0].pageY;
          }
        });

        me.bind('touchmove', function(e){
          // prevent scrolling the page if necessary
          if(!releaseScroll)
          {
  		      e.originalEvent.preventDefault();
		      }
          if (e.originalEvent.touches.length)
          {
            // see how far user swiped
            var diff = (touchDif - e.originalEvent.touches[0].pageY) / o.touchScrollStep;
            // scroll content
            scrollContent(diff, true);
            touchDif = e.originalEvent.touches[0].pageY;
          }
        });

        // set up initial height
        getBarHeight();

        // check start position
        if (o.start === 'bottom')
        {
          // scroll content to bottom
          bar.css({ top: me.outerHeight() - bar.outerHeight() });
          scrollContent(0, true);
        }
        else if (o.start !== 'top')
        {
          // assume jQuery selector
          scrollContent($(o.start).position().top, null, true);

          // make sure bar stays hidden
          if (!o.alwaysVisible) { bar.hide(); }
        }

        // attach scroll events
        attachWheel(this);

        function _onWheel(e)
        {
          // use mouse wheel only when mouse is over
          if (!isOverPanel) { return; }

          var e = e || window.event;

          var delta = 0;
          if (e.wheelDelta) { delta = -e.wheelDelta/120; }
          if (e.detail) { delta = e.detail / 3; }

          var target = e.target || e.srcTarget || e.srcElement;
          if ($(target).closest('.' + o.wrapperClass).is(me.parent())) {
            // scroll content
            scrollContent(delta, true);
          }

          // stop window scroll
          if (e.preventDefault && !releaseScroll) { e.preventDefault(); }
          if (!releaseScroll) { e.returnValue = false; }
        }

        function scrollContent(y, isWheel, isJump)
        {
          releaseScroll = false;
          var delta = y;

          var maxTop = me.outerHeight() - bar.outerHeight();

          if (isWheel)
          {
            // move bar with mouse wheel
            delta = parseInt(bar.css('top')) + y * parseInt(o.wheelStep) / 100 * bar.outerHeight();

            // move bar, make sure it doesn't go out
            delta = Math.min(Math.max(delta, 0), maxTop);

            // if scrolling down, make sure a fractional change to the
            // scroll position isn't rounded away when the scrollbar's CSS is set
            // this flooring of delta would happened automatically when
            // bar.css is set below, but we floor here for clarity
            delta = (y > 0) ? Math.ceil(delta) : Math.floor(delta);

            // scroll the scrollbar
            bar.css({ top: delta + 'px' });
          }

          // calculate actual scroll amount
          percentScroll = parseInt(bar.css('top')) / (me.outerHeight() - bar.outerHeight());
          delta = percentScroll * (me[0].scrollHeight - me.outerHeight());

          if (isJump)
          {
            delta = y;
            var offsetTop = delta / me[0].scrollHeight * me.outerHeight();
            offsetTop = Math.min(Math.max(offsetTop, 0), maxTop);
            bar.css({ top: offsetTop + 'px' });
          }

          // scroll content
          me.scrollTop(delta);

          // fire scrolling event
          me.trigger('slimscrolling', ~~delta);

          // ensure bar is visible
          showBar();

          // trigger hide when scroll is stopped
          hideBar();
        }

        function attachWheel(target)
        {
          if (window.addEventListener)
          {
            target.addEventListener('DOMMouseScroll', _onWheel, false );
            target.addEventListener('mousewheel', _onWheel, false );
          }
          else
          {
            document.attachEvent("onmousewheel", _onWheel)
          }
        }

        function getBarHeight()
        {
          // calculate scrollbar height and make sure it is not too small
          barHeight = Math.max((me.outerHeight() / me[0].scrollHeight) * me.outerHeight(), minBarHeight);
          bar.css({ height: barHeight + 'px' });

          // hide scrollbar if content is not long enough
          var display = barHeight == me.outerHeight() ? 'none' : 'block';
          bar.css({ display: display });
        }

        function showBar()
        {
          // recalculate bar height
          getBarHeight();
          clearTimeout(queueHide);

          // when bar reached top or bottom
          if (percentScroll == ~~percentScroll)
          {
            //release wheel
            releaseScroll = o.allowPageScroll;

            // publish approporiate event
            if (lastScroll != percentScroll)
            {
                var msg = (~~percentScroll == 0) ? 'top' : 'bottom';
                me.trigger('slimscroll', msg);
            }
          }
          else
          {
            releaseScroll = false;
          }
          lastScroll = percentScroll;

          // show only when required
          if(barHeight >= me.outerHeight()) {
            //allow window scroll
            releaseScroll = true;
            return;
          }
          bar.stop(true,true).fadeIn('fast');
          if (o.railVisible) { rail.stop(true,true).fadeIn('fast'); }
        }

        function hideBar()
        {
          // only hide when options allow it
          if (!o.alwaysVisible)
          {
            queueHide = setTimeout(function(){
              if (!(o.disableFadeOut && isOverPanel) && !isOverBar && !isDragg)
              {
                bar.fadeOut('slow');
                rail.fadeOut('slow');
              }
            }, 1000);
          }
        }

      });

      // maintain chainability
      return this;
    }
  });

  $.fn.extend({
    slimscroll: $.fn.slimScroll
  });

})(jQuery);


1			/*! Copyright (c) 2011 Piotr Rochala (http://rocha.la)
2			* Dual licensed under the MIT (http://www.opensource.org/licenses/mit-license.php)
3			* and GPL (http://www.opensource.org/licenses/gpl-license.php) licenses.
4			*
5			* Version: 1.3.8
6			*
7			*/
8			(function($) {
9
10			$.fn.extend({
11			slimScroll: function(options) {
12
13			var defaults = {
14
15			// width in pixels of the visible scroll area
16			width : 'auto',
17
18			// height in pixels of the visible scroll area
19			height : '250px',
20
21			// width in pixels of the scrollbar and rail
22			size : '7px',
23
24			// scrollbar color, accepts any hex/color value
25			color: '#000',
26
27			// scrollbar position - left/right
28			position : 'right',
29
30			// distance in pixels between the side edge and the scrollbar
31			distance : '1px',
32
33			// default scroll position on load - top / bottom / $('selector')
34			start : 'top',
35
36			// sets scrollbar opacity
37			opacity : .4,
38
39			// enables always-on mode for the scrollbar
40			alwaysVisible : false,
41
42			// check if we should hide the scrollbar when user is hovering over
43			disableFadeOut : false,
44
45			// sets visibility of the rail
46			railVisible : false,
47
48			// sets rail color
49			railColor : '#333',
50
51			// sets rail opacity
52			railOpacity : .2,
53
54			// whether we should use jQuery UI Draggable to enable bar dragging
55			railDraggable : true,
56
57			// defautlt CSS class of the slimscroll rail
58			railClass : 'slimScrollRail',
59
60			// defautlt CSS class of the slimscroll bar
61			barClass : 'slimScrollBar',
62
63			// defautlt CSS class of the slimscroll wrapper
64			wrapperClass : 'slimScrollDiv',
65
66			// check if mousewheel should scroll the window if we reach top/bottom
67			allowPageScroll : false,
68
69			// scroll amount applied to each mouse wheel step
70			wheelStep : 20,
71
72			// scroll amount applied when user is using gestures
73			touchScrollStep : 200,
74
75			// sets border radius
76			borderRadius: '7px',
77
78			// sets border radius of the rail
79			railBorderRadius : '7px'
80			};
81
82			var o = $.extend(defaults, options);
83
84			// do it for every element that matches selector
85			this.each(function(){
86
87			var isOverPanel, isOverBar, isDragg, queueHide, touchDif,
88			barHeight, percentScroll, lastScroll,
89			divS = '<div></div>',
90			minBarHeight = 30,
91			releaseScroll = false;
92
93			// used in event handlers and for better minification
94			var me = $(this);
95
96			// ensure we are not binding it again
97			if (me.parent().hasClass(o.wrapperClass))
98			{
99			// start from last bar position
100			var offset = me.scrollTop();
101
102			// find bar and rail
103			bar = me.siblings('.' + o.barClass);
104			rail = me.siblings('.' + o.railClass);
105
106			getBarHeight();
107
108			// check if we should scroll existing instance
109			if ($.isPlainObject(options))
110			{
111			// Pass height: auto to an existing slimscroll object to force a resize after contents have changed
112			if ( 'height' in options && options.height == 'auto' ) {
113			me.parent().css('height', 'auto');
114			me.css('height', 'auto');
115			var height = me.parent().parent().height();
116			me.parent().css('height', height);
117			me.css('height', height);
118			} else if ('height' in options) {
119			var h = options.height;
120			me.parent().css('height', h);
121			me.css('height', h);
122			}
123
124			if ('scrollTo' in options)
125			{
126			// jump to a static point
127			offset = parseInt(o.scrollTo);
128			}
129			else if ('scrollBy' in options)
130			{
131			// jump by value pixels
132			offset += parseInt(o.scrollBy);
133			}
134			else if ('destroy' in options)
135			{
136			// remove slimscroll elements
137			bar.remove();
138			rail.remove();
139			me.unwrap();
140			return;
141			}
142
143			// scroll content by the given offset
144			scrollContent(offset, false, true);
145			}
146
147			return;
148			}
149			else if ($.isPlainObject(options))
150			{
151			if ('destroy' in options)
152			{
153			return;
154			}
155			}
156
157			// optionally set height to the parent's height
158			o.height = (o.height == 'auto') ? me.parent().height() : o.height;
159
160			// wrap content
161			var wrapper = $(divS)
162			.addClass(o.wrapperClass)
163			.css({
164			position: 'relative',
165			overflow: 'hidden',
166			width: o.width,
167			height: o.height
168			});
169
170			// update style for the div
171			me.css({
172			overflow: 'hidden',
173			width: o.width,
174			height: o.height
175			});
176
177			// create scrollbar rail
178			var rail = $(divS)
179			.addClass(o.railClass)
180			.css({
181			width: o.size,
182			height: '100%',
183			position: 'absolute',
184			top: 0,
185			display: (o.alwaysVisible && o.railVisible) ? 'block' : 'none',
186			'border-radius': o.railBorderRadius,
187			background: o.railColor,
188			opacity: o.railOpacity,
189			zIndex: 90
190			});
191
192			// create scrollbar
193			var bar = $(divS)
194			.addClass(o.barClass)
195			.css({
196			background: o.color,
197			width: o.size,
198			position: 'absolute',
199			top: 0,
200			opacity: o.opacity,
201			display: o.alwaysVisible ? 'block' : 'none',
202			'border-radius' : o.borderRadius,
203			BorderRadius: o.borderRadius,
204			MozBorderRadius: o.borderRadius,
205			WebkitBorderRadius: o.borderRadius,
206			zIndex: 99
207			});
208
209			// set position
210			var posCss = (o.position == 'right') ? { right: o.distance } : { left: o.distance };
211			rail.css(posCss);
212			bar.css(posCss);
213
214			// wrap it
215			me.wrap(wrapper);
216
217			// append to parent div
218			me.parent().append(bar);
219			me.parent().append(rail);
220
221			// make it draggable and no longer dependent on the jqueryUI
222			if (o.railDraggable){
223			bar.bind("mousedown", function(e) {
224			var $doc = $(document);
225			isDragg = true;
226			t = parseFloat(bar.css('top'));
			0 ignored issues – show Bug introduced 2018-03-26 09:22 UTC by Report Bug Copy Issue Report The variable `t` seems to be never declared. Assigning variables without defining them first makes them global. If this was intended, consider making it explicit like using `window.t`. Loading history...
227			pageY = e.pageY;
			0 ignored issues – show Bug introduced 2018-03-26 09:22 UTC by Report Bug Copy Issue Report The variable `pageY` seems to be never declared. Assigning variables without defining them first makes them global. If this was intended, consider making it explicit like using `window.pageY`. Loading history...
228
229			$doc.bind("mousemove.slimscroll", function(e){
230			currTop = t + e.pageY - pageY;
			0 ignored issues – show Bug introduced 2018-03-26 09:22 UTC by Report Bug Copy Issue Report The variable `currTop` seems to be never declared. Assigning variables without defining them first makes them global. If this was intended, consider making it explicit like using `window.currTop`. Loading history...
231			bar.css('top', currTop);
232			scrollContent(0, bar.position().top, false);// scroll content
233			});
234
235			$doc.bind("mouseup.slimscroll", function(e) {
			0 ignored issues – show Unused Code introduced 2018-03-26 09:22 UTC by Report Bug Copy Issue Report The parameter `e` is not used and could be removed. This check looks for parameters in functions that are not used in the function body and are not followed by other parameters which are used inside the function. Loading history...
236			isDragg = false;hideBar();
237			$doc.unbind('.slimscroll');
238			});
239			return false;
240			}).bind("selectstart.slimscroll", function(e){
241			e.stopPropagation();
242			e.preventDefault();
243			return false;
244			});
245			}
246
247			// on rail over
248			rail.hover(function(){
249			showBar();
250			}, function(){
251			hideBar();
252			});
253
254			// on bar over
255			bar.hover(function(){
256			isOverBar = true;
257			}, function(){
258			isOverBar = false;
259			});
260
261			// show on parent mouseover
262			me.hover(function(){
263			isOverPanel = true;
264			showBar();
265			hideBar();
266			}, function(){
267			isOverPanel = false;
268			hideBar();
269			});
270
271			// support for mobile
272			me.bind('touchstart', function(e,b){
			0 ignored issues – show Unused Code introduced 2018-03-26 09:22 UTC by Report Bug Copy Issue Report The parameter `b` is not used and could be removed. This check looks for parameters in functions that are not used in the function body and are not followed by other parameters which are used inside the function. Loading history...
273			if (e.originalEvent.touches.length)
274			{
275			// record where touch started
276			touchDif = e.originalEvent.touches[0].pageY;
277			}
278			});
279
280			me.bind('touchmove', function(e){
281			// prevent scrolling the page if necessary
282			if(!releaseScroll)
283			{
284			e.originalEvent.preventDefault();
285			}
286			if (e.originalEvent.touches.length)
287			{
288			// see how far user swiped
289			var diff = (touchDif - e.originalEvent.touches[0].pageY) / o.touchScrollStep;
290			// scroll content
291			scrollContent(diff, true);
292			touchDif = e.originalEvent.touches[0].pageY;
293			}
294			});
295
296			// set up initial height
297			getBarHeight();
298
299			// check start position
300			if (o.start === 'bottom')
301			{
302			// scroll content to bottom
303			bar.css({ top: me.outerHeight() - bar.outerHeight() });
304			scrollContent(0, true);
305			}
306			else if (o.start !== 'top')
307			{
308			// assume jQuery selector
309			scrollContent($(o.start).position().top, null, true);
310
311			// make sure bar stays hidden
312			if (!o.alwaysVisible) { bar.hide(); }
313			}
314
315			// attach scroll events
316			attachWheel(this);
317
318			function _onWheel(e)
319			{
320			// use mouse wheel only when mouse is over
321			if (!isOverPanel) { return; }
322
323			var e = e \|\| window.event;
324
325			var delta = 0;
326			if (e.wheelDelta) { delta = -e.wheelDelta/120; }
327			if (e.detail) { delta = e.detail / 3; }
328
329			var target = e.target \|\| e.srcTarget \|\| e.srcElement;
330			if ($(target).closest('.' + o.wrapperClass).is(me.parent())) {
331			// scroll content
332			scrollContent(delta, true);
333			}
334
335			// stop window scroll
336			if (e.preventDefault && !releaseScroll) { e.preventDefault(); }
337			if (!releaseScroll) { e.returnValue = false; }
338			}
339
340			function scrollContent(y, isWheel, isJump)
341			{
342			releaseScroll = false;
343			var delta = y;
			0 ignored issues – show Unused Code introduced 2018-03-26 09:22 UTC by Report Bug Copy Issue Report The assignment to variable `delta` seems to be never used. Consider removing it. Loading history...
344			var maxTop = me.outerHeight() - bar.outerHeight();
345
346			if (isWheel)
347			{
348			// move bar with mouse wheel
349			delta = parseInt(bar.css('top')) + y * parseInt(o.wheelStep) / 100 * bar.outerHeight();
350
351			// move bar, make sure it doesn't go out
352			delta = Math.min(Math.max(delta, 0), maxTop);
353
354			// if scrolling down, make sure a fractional change to the
355			// scroll position isn't rounded away when the scrollbar's CSS is set
356			// this flooring of delta would happened automatically when
357			// bar.css is set below, but we floor here for clarity
358			delta = (y > 0) ? Math.ceil(delta) : Math.floor(delta);
359
360			// scroll the scrollbar
361			bar.css({ top: delta + 'px' });
362			}
363
364			// calculate actual scroll amount
365			percentScroll = parseInt(bar.css('top')) / (me.outerHeight() - bar.outerHeight());
366			delta = percentScroll * (me[0].scrollHeight - me.outerHeight());
367
368			if (isJump)
369			{
370			delta = y;
371			var offsetTop = delta / me[0].scrollHeight * me.outerHeight();
372			offsetTop = Math.min(Math.max(offsetTop, 0), maxTop);
373			bar.css({ top: offsetTop + 'px' });
374			}
375
376			// scroll content
377			me.scrollTop(delta);
378
379			// fire scrolling event
380			me.trigger('slimscrolling', ~~delta);
381
382			// ensure bar is visible
383			showBar();
384
385			// trigger hide when scroll is stopped
386			hideBar();
387			}
388
389			function attachWheel(target)
390			{
391			if (window.addEventListener)
392			{
393			target.addEventListener('DOMMouseScroll', _onWheel, false );
394			target.addEventListener('mousewheel', _onWheel, false );
395			}
396			else
397			{
398			document.attachEvent("onmousewheel", _onWheel)
399			}
400			}
401
402			function getBarHeight()
403			{
404			// calculate scrollbar height and make sure it is not too small
405			barHeight = Math.max((me.outerHeight() / me[0].scrollHeight) * me.outerHeight(), minBarHeight);
406			bar.css({ height: barHeight + 'px' });
407
408			// hide scrollbar if content is not long enough
409			var display = barHeight == me.outerHeight() ? 'none' : 'block';
410			bar.css({ display: display });
411			}
412
413			function showBar()
414			{
415			// recalculate bar height
416			getBarHeight();
417			clearTimeout(queueHide);
418
419			// when bar reached top or bottom
420			if (percentScroll == ~~percentScroll)
421			{
422			//release wheel
423			releaseScroll = o.allowPageScroll;
424
425			// publish approporiate event
426			if (lastScroll != percentScroll)
427			{
428			var msg = (~~percentScroll == 0) ? 'top' : 'bottom';
429			me.trigger('slimscroll', msg);
430			}
431			}
432			else
433			{
434			releaseScroll = false;
435			}
436			lastScroll = percentScroll;
437
438			// show only when required
439			if(barHeight >= me.outerHeight()) {
440			//allow window scroll
441			releaseScroll = true;
442			return;
443			}
444			bar.stop(true,true).fadeIn('fast');
445			if (o.railVisible) { rail.stop(true,true).fadeIn('fast'); }
446			}
447
448			function hideBar()
449			{
450			// only hide when options allow it
451			if (!o.alwaysVisible)
452			{
453			queueHide = setTimeout(function(){
454			if (!(o.disableFadeOut && isOverPanel) && !isOverBar && !isDragg)
455			{
456			bar.fadeOut('slow');
457			rail.fadeOut('slow');
458			}
459			}, 1000);
460			}
461			}
462
463			});
464
465			// maintain chainability
466			return this;
467			}
468			});
469
470			$.fn.extend({
471			slimscroll: $.fn.slimScroll
472			});
473
474			})(jQuery);
475

yuncms / framework

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