7 lines
3.6 KiB
JavaScript
7 lines
3.6 KiB
JavaScript
/*! tinyscrollbar - v2.1.8 - 2014-07-07
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* http://www.baijs.com/tinyscrollbar
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*
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* Copyright (c) 2014 Maarten Baijs <wieringen@gmail.com>;
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* Licensed under the MIT license */
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!function(a){"function"==typeof define&&define.amd?define(["jquery"],a):a("object"==typeof exports?require("jquery"):jQuery)}(function(a){"use strict";function b(b,e){function f(){return m.update(),h(),m}function g(){r.css(x,m.contentPosition/m.trackRatio),o.css(x,-m.contentPosition),p.css(w,m.trackSize),q.css(w,m.trackSize),r.css(w,m.thumbSize)}function h(){u?n[0].ontouchstart=function(a){1===a.touches.length&&(a.stopPropagation(),i(a.touches[0]))}:(r.bind("mousedown",i),q.bind("mousedown",k)),a(window).resize(function(){m.update("relative")}),m.options.wheel&&window.addEventListener?b[0].addEventListener(v,j,!1):m.options.wheel&&(b[0].onmousewheel=j)}function i(b){a("body").addClass("noSelect"),s=t?b.pageX:b.pageY,m.thumbPosition=parseInt(r.css(x),10)||0,u?(document.ontouchmove=function(a){a.preventDefault(),k(a.touches[0])},document.ontouchend=l):(a(document).bind("mousemove",k),a(document).bind("mouseup",l),r.bind("mouseup",l))}function j(c){if(m.contentRatio<1){var d=c||window.event,e="delta"+m.options.axis.toUpperCase(),f=-(d[e]||d.detail||-1/3*d.wheelDelta)/40;m.contentPosition-=f*m.options.wheelSpeed,m.contentPosition=Math.min(m.contentSize-m.viewportSize,Math.max(0,m.contentPosition)),b.trigger("move"),r.css(x,m.contentPosition/m.trackRatio),o.css(x,-m.contentPosition),(m.options.wheelLock||m.contentPosition!==m.contentSize-m.viewportSize&&0!==m.contentPosition)&&(d=a.event.fix(d),d.preventDefault())}}function k(a){if(m.contentRatio<1){var c=t?a.pageX:a.pageY,d=c-s;m.options.scrollInvert&&u&&(d=s-c);var e=Math.min(m.trackSize-m.thumbSize,Math.max(0,m.thumbPosition+d));m.contentPosition=e*m.trackRatio,b.trigger("move"),r.css(x,e),o.css(x,-m.contentPosition)}}function l(){a("body").removeClass("noSelect"),a(document).unbind("mousemove",k),a(document).unbind("mouseup",l),r.unbind("mouseup",l),document.ontouchmove=document.ontouchend=null}this.options=a.extend({},d,e),this._defaults=d,this._name=c;var m=this,n=b.find(".viewport"),o=b.find(".overview"),p=b.find(".scrollbar"),q=p.find(".track"),r=p.find(".thumb"),s=0,t="x"===this.options.axis,u="ontouchstart"in document.documentElement,v="onwheel"in document||document.documentMode>=9?"wheel":void 0!==document.onmousewheel?"mousewheel":"DOMMouseScroll",w=t?"width":"height",x=t?"left":"top";return this.contentPosition=0,this.viewportSize=0,this.contentSize=0,this.contentRatio=0,this.trackSize=0,this.trackRatio=0,this.thumbSize=0,this.thumbPosition=0,this.update=function(a){var b=w.charAt(0).toUpperCase()+w.slice(1).toLowerCase();switch(this.viewportSize=n[0]["offset"+b],this.contentSize=o[0]["scroll"+b],this.contentRatio=this.viewportSize/this.contentSize,this.trackSize=this.options.trackSize||this.viewportSize,this.thumbSize=Math.min(this.trackSize,Math.max(0,this.options.thumbSize||this.trackSize*this.contentRatio)),this.trackRatio=this.options.thumbSize?(this.contentSize-this.viewportSize)/(this.trackSize-this.thumbSize):this.contentSize/this.trackSize,s=q.offset().top,p.toggleClass("disable",this.contentRatio>=1),a){case"bottom":this.contentPosition=this.contentSize-this.viewportSize;break;case"relative":this.contentPosition=Math.min(Math.max(this.contentSize-this.viewportSize,0),Math.max(0,this.contentPosition));break;default:this.contentPosition=parseInt(a,10)||0}return g(),m},f()}var c="tinyscrollbar",d={axis:"y",wheel:!0,wheelSpeed:40,wheelLock:!0,scrollInvert:!1,trackSize:!1,thumbSize:!1};a.fn[c]=function(d){return this.each(function(){a.data(this,"plugin_"+c)||a.data(this,"plugin_"+c,new b(a(this),d))})}}); |