6 lines
18 KiB
JavaScript
6 lines
18 KiB
JavaScript
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/*!
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* perfect-scrollbar v1.1.0
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* (c) 2017 Hyunje Jun
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* @license MIT
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*/
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!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):t.PerfectScrollbar=e()}(this,function(){"use strict";function t(t){return getComputedStyle(t)}function e(t,e){for(var i in e){var n=e[i];"number"==typeof n&&(n+="px"),t.style[i]=n}return t}function i(t){var e=document.createElement("div");return e.className=t,e}function n(t,e){if(!v)throw new Error("No element matching method supported");return v.call(t,e)}function r(t){t.remove?t.remove():t.parentNode&&t.parentNode.removeChild(t)}function l(t,e){return Array.prototype.filter.call(t.children,function(t){return n(t,e)})}function o(t,e){var i=t.element.classList,n=m.state.scrolling(e);i.contains(n)?clearTimeout(w[e]):i.add(n)}function s(t,e){w[e]=setTimeout(function(){return t.element.classList.remove(m.state.scrolling(e))},t.settings.scrollingThreshold)}function a(t,e){o(t,e),s(t,e)}function c(t){if("function"==typeof window.CustomEvent)return new CustomEvent(t);var e=document.createEvent("CustomEvent");return e.initCustomEvent(t,!1,!1,void 0),e}function h(t,e,i,n){var r=i[0],l=i[1],o=i[2],s=i[3],h=i[4],u=i[5],d=t.element,p=!1;t.reach[s]=null,e<=0&&(e=0,t.reach[s]="start"),e>=t[r]-t[l]&&((e=t[r]-t[l])-d[o]<=2&&(p=!0),t.reach[s]="end");var f=d[o]-e;f&&(d.dispatchEvent(c("ps-scroll-"+s)),f>0?d.dispatchEvent(c("ps-scroll-"+h)):d.dispatchEvent(c("ps-scroll-"+u)),p||(d[o]=e),t.reach[s]&&d.dispatchEvent(c("ps-"+s+"-reach-"+t.reach[s])),n&&a(t,s))}function u(t){return parseInt(t,10)||0}function d(t){return n(t,"input,[contenteditable]")||n(t,"select,[contenteditable]")||n(t,"textarea,[contenteditable]")||n(t,"button,[contenteditable]")}function p(e){var i=t(e);return u(i.width)+u(i.paddingLeft)+u(i.paddingRight)+u(i.borderLeftWidth)+u(i.borderRightWidth)}function f(t,e){return t.settings.minScrollbarLength&&(e=Math.max(e,t.settings.minScrollbarLength)),t.settings.maxScrollbarLength&&(e=Math.min(e,t.settings.maxScrollbarLength)),e}function b(t,i){var n={width:i.railXWidth};i.isRtl?n.left=i.negativeScrollAdjustment+t.scrollLeft+i.containerWidth-i.contentWidth:n.left=t.scrollLeft,i.isScrollbarXUsingBottom?n.bottom=i.scrollbarXBottom-t.scrollTop:n.top=i.scrollbarXTop+t.scrollTop,e(i.scrollbarXRail,n);var r={top:t.scrollTop,height:i.railYHeight};i.isScrollbarYUsingRight?i.isRtl?r.right=i.contentWidth-(i.negativeScrollAdjustment+t.scrollLeft)-i.scrollbarYRight-i.scrollbarYOuterWidth:r.right=i.scrollbarYRight-t.scrollLeft:i.isRtl?r.left=i.negativeScrollAdjustment+t.scrollLeft+2*i.containerWidth-i.contentWidth-i.scrollbarYLeft-i.scrollbarYOuterWidth:r.left=i.scrollbarYLeft+t.scrollLeft,e(i.scrollbarYRail,r),e(i.scrollbarX,{left:i.scrollbarXLeft,width:i.scrollbarXWidth-i.railBorderXWidth}),e(i.scrollbarY,{top:i.scrollbarYTop,height:i.scrollbarYHeight-i.railBorderYWidth})}function g(t,e){function i(e){y(t,p,g+m*(e[a]-v),!1),o(t,f),L(t),e.stopPropagation(),e.preventDefault()}function n(){s(t,f),t.event.unbind(t.ownerDocument,"mousemove",i)}var r=e[0],l=e[1],a=e[2],c=e[3],h=e[4],u=e[5],d=e[6],p=e[7],f=e[8],b=t.element,g=null,v=null,m=null;t.event.bind(t[h],"mousedown",function(e){g=b[d],v=e[a],m=(t[l]-t[r])/(t[c]-t[u]),t.event.bind(t.ownerDocument,"mousemove",i),t.event.once(t.ownerDocument,"mouseup",n),e.stopPropagation(),e.preventDefault()})}var v=Element.prototype.matches||Element.prototype.webkitMatchesSelector||Element.prototype.msMatchesSelector,m={main:"ps",element:{thumb:function(t){return"ps__thumb-"+t},rail:function(t){return"ps__rail-"+t},consuming:"ps__child--consume"},state:{focus:"ps--focus",active:function(t){return"ps--active-"+t},scrolling:function(t){return"ps--scrolling-"+t}}},w={x:null,y:null},Y=function(t){this.element=t,this.handlers={}},X={isEmpty:{configurable:!0}};Y.prototype.bind=function(t,e){void 0===this.handlers[t]&&(this.handlers[t]=[]),this.handlers[t].push(e),this.element.addEventListener(t,e,!1)},Y.prototype.unbind=function(t,e){var i=this;this.handlers[t]=this.handlers[t].filter(function(n){return!(!e||n===e)||(i.element.removeEventListener(t,n,!1),!1)})},Y.prototype.unbin
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