4 lines
9 KiB
JavaScript
4 lines
9 KiB
JavaScript
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/*! perfect-scrollbar - v0.4.9
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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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(function(e){"use strict";"function"==typeof define&&define.amd?define(["jquery"],e):"object"==typeof exports?e(require("jquery")):e(jQuery)})(function(e){"use strict";var t={wheelSpeed:10,wheelPropagation:!1,minScrollbarLength:null,useBothWheelAxes:!1,useKeyboard:!0,suppressScrollX:!1,suppressScrollY:!1,scrollXMarginOffset:0,scrollYMarginOffset:0,includePadding:!1},n=function(){var e=0;return function(){var t=e;return e+=1,".perfect-scrollbar-"+t}}();e.fn.perfectScrollbar=function(o,r){return this.each(function(){var l=e.extend(!0,{},t),a=e(this);if("object"==typeof o?e.extend(!0,l,o):r=o,"update"===r)return a.data("perfect-scrollbar-update")&&a.data("perfect-scrollbar-update")(),a;if("destroy"===r)return a.data("perfect-scrollbar-destroy")&&a.data("perfect-scrollbar-destroy")(),a;if(a.data("perfect-scrollbar"))return a.data("perfect-scrollbar");a.addClass("ps-container");var s,i,c,u,d,p,f,h,v,g,b=e("<div class='ps-scrollbar-x-rail'></div>").appendTo(a),m=e("<div class='ps-scrollbar-y-rail'></div>").appendTo(a),w=e("<div class='ps-scrollbar-x'></div>").appendTo(b),T=e("<div class='ps-scrollbar-y'></div>").appendTo(m),y=parseInt(b.css("bottom"),10),L=parseInt(m.css("right"),10),S=n(),x=function(e,t){var n=e+t,o=u-v;g=0>n?0:n>o?o:n;var r=parseInt(g*(p-u)/(u-v),10);a.scrollTop(r),b.css({bottom:y-r})},M=function(e,t){var n=e+t,o=c-f;h=0>n?0:n>o?o:n;var r=parseInt(h*(d-c)/(c-f),10);a.scrollLeft(r),m.css({right:L-r})},P=function(e){return l.minScrollbarLength&&(e=Math.max(e,l.minScrollbarLength)),e},X=function(){b.css({left:a.scrollLeft(),bottom:y-a.scrollTop(),width:c,display:s?"inherit":"none"}),m.css({top:a.scrollTop(),right:L-a.scrollLeft(),height:u,display:i?"inherit":"none"}),w.css({left:h,width:f}),T.css({top:g,height:v})},D=function(){c=l.includePadding?a.innerWidth():a.width(),u=l.includePadding?a.innerHeight():a.height(),d=a.prop("scrollWidth"),p=a.prop("scrollHeight"),!l.suppressScrollX&&d>c+l.scrollXMarginOffset?(s=!0,f=P(parseInt(c*c/d,10)),h=parseInt(a.scrollLeft()*(c-f)/(d-c),10)):(s=!1,f=0,h=0,a.scrollLeft(0)),!l.suppressScrollY&&p>u+l.scrollYMarginOffset?(i=!0,v=P(parseInt(u*u/p,10)),g=parseInt(a.scrollTop()*(u-v)/(p-u),10)):(i=!1,v=0,g=0,a.scrollTop(0)),g>=u-v&&(g=u-v),h>=c-f&&(h=c-f),X()},I=function(){var t,n;w.bind("mousedown"+S,function(e){n=e.pageX,t=w.position().left,b.addClass("in-scrolling"),e.stopPropagation(),e.preventDefault()}),e(document).bind("mousemove"+S,function(e){b.hasClass("in-scrolling")&&(M(t,e.pageX-n),e.stopPropagation(),e.preventDefault())}),e(document).bind("mouseup"+S,function(){b.hasClass("in-scrolling")&&b.removeClass("in-scrolling")}),t=n=null},Y=function(){var t,n;T.bind("mousedown"+S,function(e){n=e.pageY,t=T.position().top,m.addClass("in-scrolling"),e.stopPropagation(),e.preventDefault()}),e(document).bind("mousemove"+S,function(e){m.hasClass("in-scrolling")&&(x(t,e.pageY-n),e.stopPropagation(),e.preventDefault())}),e(document).bind("mouseup"+S,function(){m.hasClass("in-scrolling")&&m.removeClass("in-scrolling")}),t=n=null},k=function(e,t){var n=a.scrollTop();if(0===e){if(!i)return!1;if(0===n&&t>0||n>=p-u&&0>t)return!l.wheelPropagation}var o=a.scrollLeft();if(0===t){if(!s)return!1;if(0===o&&0>e||o>=d-c&&e>0)return!l.wheelPropagation}return!0},C=function(){l.wheelSpeed/=10;var e=!1;a.bind("mousewheel"+S,function(t,n,o,r){var c=t.deltaX*t.deltaFactor||o,u=t.deltaY*t.deltaFactor||r;e=!1,l.useBothWheelAxes?i&&!s?(u?a.scrollTop(a.scrollTop()-u*l.wheelSpeed):a.scrollTop(a.scrollTop()+c*l.wheelSpeed),e=!0):s&&!i&&(c?a.scrollLeft(a.scrollLeft()+c*l.wheelSpeed):a.scrollLeft(a.scrollLeft()-u*l.wheelSpeed),e=!0):(a.scrollTop(a.scrollTop()-u*l.wheelSpeed),a.scrollLeft(a.scrollLeft()+c*l.wheelSpeed)),D(),e=e||k(c,u),e&&(t.stopPropagation(),t.preventDefault())}),a.bind("MozMousePixelScroll"+S,function(t){e&&t.preventDefault()})},j=function(){var t=!1;a.bind("mouseenter"+S,function(){t=!0}),a.bind("mouseleave"+S,function(){t=!1});var n=!1;e(document).bind("keydown"+S,function(o){if(t&&!e(document.activeElement).is(":input,[contenteditable]")){var r=0,l=0;switch(o.which){case 37:r=-30;break;
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