4 lines
7.5 KiB
JavaScript
4 lines
7.5 KiB
JavaScript
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/*! perfect-scrollbar - v0.4.8
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* http://noraesae.github.com/perfect-scrollbar/
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* Copyright (c) 2014 Hyeonje Jun; Licensed MIT */
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"use strict";(function(e){"function"==typeof define&&define.amd?define(["jquery"],e):e(jQuery)})(function(e){var n={wheelSpeed:10,wheelPropagation:!1,minScrollbarLength:null,useBothWheelAxes:!1,useKeyboard:!0,suppressScrollX:!1,suppressScrollY:!1,scrollXMarginOffset:0,scrollYMarginOffset:0},t=function(){var e=0;return function(){var n=e;return e+=1,".perfect-scrollbar-"+n}}();e.fn.perfectScrollbar=function(o,r){return this.each(function(){var l=e.extend(!0,{},n),s=e(this);if("object"==typeof o?e.extend(!0,l,o):r=o,"update"===r)return s.data("perfect-scrollbar-update")&&s.data("perfect-scrollbar-update")(),s;if("destroy"===r)return s.data("perfect-scrollbar-destroy")&&s.data("perfect-scrollbar-destroy")(),s;if(s.data("perfect-scrollbar"))return s.data("perfect-scrollbar");s.addClass("ps-container");var a,i,c,u,p,d,f,h,v,b,g=e("<div class='ps-scrollbar-x-rail'></div>").appendTo(s),m=e("<div class='ps-scrollbar-y-rail'></div>").appendTo(s),w=e("<div class='ps-scrollbar-x'></div>").appendTo(g),T=e("<div class='ps-scrollbar-y'></div>").appendTo(m),L=parseInt(g.css("bottom"),10),y=parseInt(m.css("right"),10),S=t(),I=function(e,n){var t=e+n,o=u-v;b=0>t?0:t>o?o:t;var r=parseInt(b*(d-u)/(u-v),10);s.scrollTop(r),g.css({bottom:L-r})},D=function(e,n){var t=e+n,o=c-f;h=0>t?0:t>o?o:t;var r=parseInt(h*(p-c)/(c-f),10);s.scrollLeft(r),m.css({right:y-r})},x=function(e){return l.minScrollbarLength&&(e=Math.max(e,l.minScrollbarLength)),e},k=function(){g.css({left:s.scrollLeft(),bottom:L-s.scrollTop(),width:c,display:a?"inherit":"none"}),m.css({top:s.scrollTop(),right:y-s.scrollLeft(),height:u,display:i?"inherit":"none"}),w.css({left:h,width:f}),T.css({top:b,height:v})},X=function(){c=s.width(),u=s.height(),p=s.prop("scrollWidth"),d=s.prop("scrollHeight"),!l.suppressScrollX&&p>c+l.scrollXMarginOffset?(a=!0,f=x(parseInt(c*c/p,10)),h=parseInt(s.scrollLeft()*(c-f)/(p-c),10)):(a=!1,f=0,h=0,s.scrollLeft(0)),!l.suppressScrollY&&d>u+l.scrollYMarginOffset?(i=!0,v=x(parseInt(u*u/d,10)),b=parseInt(s.scrollTop()*(u-v)/(d-u),10)):(i=!1,v=0,b=0,s.scrollTop(0)),b>=u-v&&(b=u-v),h>=c-f&&(h=c-f),k()},C=function(){var n,t;w.bind("mousedown"+S,function(e){t=e.pageX,n=w.position().left,g.addClass("in-scrolling"),e.stopPropagation(),e.preventDefault()}),e(document).bind("mousemove"+S,function(e){g.hasClass("in-scrolling")&&(D(n,e.pageX-t),e.stopPropagation(),e.preventDefault())}),e(document).bind("mouseup"+S,function(){g.hasClass("in-scrolling")&&g.removeClass("in-scrolling")}),n=t=null},Y=function(){var n,t;T.bind("mousedown"+S,function(e){t=e.pageY,n=T.position().top,m.addClass("in-scrolling"),e.stopPropagation(),e.preventDefault()}),e(document).bind("mousemove"+S,function(e){m.hasClass("in-scrolling")&&(I(n,e.pageY-t),e.stopPropagation(),e.preventDefault())}),e(document).bind("mouseup"+S,function(){m.hasClass("in-scrolling")&&m.removeClass("in-scrolling")}),n=t=null},P=function(e,n){var t=s.scrollTop();if(0===e){if(!i)return!1;if(0===t&&n>0||t>=d-u&&0>n)return!l.wheelPropagation}var o=s.scrollLeft();if(0===n){if(!a)return!1;if(0===o&&0>e||o>=p-c&&e>0)return!l.wheelPropagation}return!0},M=function(){var e=!1;s.bind("mousewheel"+S,function(n,t,o,r){l.useBothWheelAxes?i&&!a?r?s.scrollTop(s.scrollTop()-r*l.wheelSpeed):s.scrollTop(s.scrollTop()+o*l.wheelSpeed):a&&!i&&(o?s.scrollLeft(s.scrollLeft()+o*l.wheelSpeed):s.scrollLeft(s.scrollLeft()-r*l.wheelSpeed)):(s.scrollTop(s.scrollTop()-r*l.wheelSpeed),s.scrollLeft(s.scrollLeft()+o*l.wheelSpeed)),X(),e=P(o,r),e&&n.preventDefault()}),s.bind("MozMousePixelScroll"+S,function(n){e&&n.preventDefault()})},O=function(){var n=!1;s.bind("mouseenter"+S,function(){n=!0}),s.bind("mouseleave"+S,function(){n=!1});var t=!1;e(document).bind("keydown"+S,function(e){if(n){var o=0,r=0;switch(e.which){case 37:o=-3;break;case 38:r=3;break;case 39:o=3;break;case 40:r=-3;break;case 33:r=9;break;case 32:case 34:r=-9;break;case 35:r=-u;break;case 36:r=u;break;default:return}s.scrollTop(s.scrollTop()-r*l.wheelSpeed),s.scrollLeft(s.scrollLeft()+o*l.wheelSpeed),t=P(o,r),t&&e.preventDefault()}})},E=function(){var e=function(e){e.stopPropagation
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