4 lines
9.2 KiB
JavaScript
4 lines
9.2 KiB
JavaScript
/*! perfect-scrollbar - v0.5.8
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* http://noraesae.github.com/perfect-scrollbar/
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* Copyright (c) 2014 Hyunje Alex 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";function t(e){return"string"==typeof e?parseInt(e,10):~~e}var o={wheelSpeed:1,wheelPropagation:!1,swipePropagation:!0,minScrollbarLength:null,maxScrollbarLength:null,useBothWheelAxes:!1,useKeyboard:!0,suppressScrollX:!1,suppressScrollY:!1,scrollXMarginOffset:0,scrollYMarginOffset:0,includePadding:!1},n=0,r=function(){var e=n++;return function(t){var o=".perfect-scrollbar-"+e;return t===void 0?o:t+o}},l="WebkitAppearance"in document.documentElement.style;e.fn.perfectScrollbar=function(n,i){return this.each(function(){function a(e,o){var n=e+o,r=D-R;j=0>n?0:n>r?r:n;var l=t(j*(Y-D)/(D-R));M.scrollTop(l)}function s(e,o){var n=e+o,r=E-k;W=0>n?0:n>r?r:n;var l=t(W*(C-E)/(E-k));M.scrollLeft(l)}function c(e){return P.minScrollbarLength&&(e=Math.max(e,P.minScrollbarLength)),P.maxScrollbarLength&&(e=Math.min(e,P.maxScrollbarLength)),e}function u(){var e={width:I};e.left=B?M.scrollLeft()+E-C:M.scrollLeft(),N?e.bottom=_-M.scrollTop():e.top=Q+M.scrollTop(),H.css(e);var t={top:M.scrollTop(),height:A};Z?t.right=B?C-M.scrollLeft()-V-J.outerWidth():V-M.scrollLeft():t.left=B?M.scrollLeft()+2*E-C-$-J.outerWidth():$+M.scrollLeft(),G.css(t),U.css({left:W,width:k-z}),J.css({top:j,height:R-et})}function d(){M.removeClass("ps-active-x"),M.removeClass("ps-active-y"),E=P.includePadding?M.innerWidth():M.width(),D=P.includePadding?M.innerHeight():M.height(),C=M.prop("scrollWidth"),Y=M.prop("scrollHeight"),!P.suppressScrollX&&C>E+P.scrollXMarginOffset?(X=!0,I=E-F,k=c(t(I*E/C)),W=t(M.scrollLeft()*(I-k)/(C-E))):(X=!1,k=0,W=0,M.scrollLeft(0)),!P.suppressScrollY&&Y>D+P.scrollYMarginOffset?(O=!0,A=D-tt,R=c(t(A*D/Y)),j=t(M.scrollTop()*(A-R)/(Y-D))):(O=!1,R=0,j=0,M.scrollTop(0)),W>=I-k&&(W=I-k),j>=A-R&&(j=A-R),u(),X&&M.addClass("ps-active-x"),O&&M.addClass("ps-active-y")}function p(){var t,o,n=function(e){s(t,e.pageX-o),d(),e.stopPropagation(),e.preventDefault()},r=function(){H.removeClass("in-scrolling"),e(q).unbind(K("mousemove"),n)};U.bind(K("mousedown"),function(l){o=l.pageX,t=U.position().left,H.addClass("in-scrolling"),e(q).bind(K("mousemove"),n),e(q).one(K("mouseup"),r),l.stopPropagation(),l.preventDefault()}),t=o=null}function f(){var t,o,n=function(e){a(t,e.pageY-o),d(),e.stopPropagation(),e.preventDefault()},r=function(){G.removeClass("in-scrolling"),e(q).unbind(K("mousemove"),n)};J.bind(K("mousedown"),function(l){o=l.pageY,t=J.position().top,G.addClass("in-scrolling"),e(q).bind(K("mousemove"),n),e(q).one(K("mouseup"),r),l.stopPropagation(),l.preventDefault()}),t=o=null}function v(e,t){var o=M.scrollTop();if(0===e){if(!O)return!1;if(0===o&&t>0||o>=Y-D&&0>t)return!P.wheelPropagation}var n=M.scrollLeft();if(0===t){if(!X)return!1;if(0===n&&0>e||n>=C-E&&e>0)return!P.wheelPropagation}return!0}function g(e,t){var o=M.scrollTop(),n=M.scrollLeft(),r=Math.abs(e),l=Math.abs(t);if(l>r){if(0>t&&o===Y-D||t>0&&0===o)return!P.swipePropagation}else if(r>l&&(0>e&&n===C-E||e>0&&0===n))return!P.swipePropagation;return!0}function b(){function e(e){var t=e.originalEvent.deltaX,o=-1*e.originalEvent.deltaY;return(t===void 0||o===void 0)&&(t=-1*e.originalEvent.wheelDeltaX/6,o=e.originalEvent.wheelDeltaY/6),e.originalEvent.deltaMode&&1===e.originalEvent.deltaMode&&(t*=10,o*=10),t!==t&&o!==o&&(t=0,o=e.originalEvent.wheelDelta),[t,o]}function t(t){if(l||!(M.find("select:focus").length>0)){var n=e(t),r=n[0],i=n[1];o=!1,P.useBothWheelAxes?O&&!X?(i?M.scrollTop(M.scrollTop()-i*P.wheelSpeed):M.scrollTop(M.scrollTop()+r*P.wheelSpeed),o=!0):X&&!O&&(r?M.scrollLeft(M.scrollLeft()+r*P.wheelSpeed):M.scrollLeft(M.scrollLeft()-i*P.wheelSpeed),o=!0):(M.scrollTop(M.scrollTop()-i*P.wheelSpeed),M.scrollLeft(M.scrollLeft()+r*P.wheelSpeed)),d(),o=o||v(r,i),o&&(t.stopPropagation(),t.preventDefault())}}var o=!1;window.onwheel!==void 0?M.bind(K("wheel"),t):window.onmousewheel!==void 0&&M.bind(K("mousewheel"),t)}function h(){var t=!1;M.bind(K("mouseenter"),function(){t=!0}),M.bind(K("mouseleave"),function(){t=!1});var o=!1;e(q).bind(K("keydown"),function(n){if((!n.isDefaultPrevented||!n.isDefaultPrevented())&&t){for(var r=document.activeElement?document.activeElement:q.activeElement;r.shadowRoot;)r=r.shadowRoot.activeElement;if(!e(r).is(":input,[contenteditable]")){var l=0,i=0;switch(n.which){case 37:l=-30;break;case 38:i=30;break;case 39:l=30;break;case 40:i=-30;break;case 33:i=90;break;case 32:case 34:i=-90;break;case 35:i=n.ctrlKey?-Y:-D;break;case 36:i=n.ctrlKey?M.scrollTop():D;break;default:return}M.scrollTop(M.scrollTop()-i),M.scrollLeft(M.scrollLeft()+l),o=v(l,i),o&&n.preventDefault()}}})}function w(){function e(e){e.stopPropagation()}J.bind(K("click"),e),G.bind(K("click"),function(e){var o=t(R/2),n=e.pageY-G.offset().top-o,r=D-R,l=n/r;0>l?l=0:l>1&&(l=1),M.scrollTop((Y-D)*l)}),U.bind(K("click"),e),H.bind(K("click"),function(e){var o=t(k/2),n=e.pageX-H.offset().left-o,r=E-k,l=n/r;0>l?l=0:l>1&&(l=1),M.scrollLeft((C-E)*l)})}function m(){function t(){var e=window.getSelection?window.getSelection():document.getSlection?document.getSlection():{rangeCount:0};return 0===e.rangeCount?null:e.getRangeAt(0).commonAncestorContainer}function o(){r||(r=setInterval(function(){return x()?(M.scrollTop(M.scrollTop()+l.top),M.scrollLeft(M.scrollLeft()+l.left),d(),void 0):(clearInterval(r),void 0)},50))}function n(){r&&(clearInterval(r),r=null),H.removeClass("in-scrolling"),G.removeClass("in-scrolling")}var r=null,l={top:0,left:0},i=!1;e(q).bind(K("selectionchange"),function(){e.contains(M[0],t())?i=!0:(i=!1,n())}),e(window).bind(K("mouseup"),function(){i&&(i=!1,n())}),e(window).bind(K("mousemove"),function(e){if(i){var t={x:e.pageX,y:e.pageY},r=M.offset(),a={left:r.left,right:r.left+M.outerWidth(),top:r.top,bottom:r.top+M.outerHeight()};t.x<a.left+3?(l.left=-5,H.addClass("in-scrolling")):t.x>a.right-3?(l.left=5,H.addClass("in-scrolling")):l.left=0,t.y<a.top+3?(l.top=5>a.top+3-t.y?-5:-20,G.addClass("in-scrolling")):t.y>a.bottom-3?(l.top=5>t.y-a.bottom+3?5:20,G.addClass("in-scrolling")):l.top=0,0===l.top&&0===l.left?n():o()}})}function T(t,o){function n(e,t){M.scrollTop(M.scrollTop()-t),M.scrollLeft(M.scrollLeft()-e),d()}function r(){h=!0}function l(){h=!1}function i(e){return e.originalEvent.targetTouches?e.originalEvent.targetTouches[0]:e.originalEvent}function a(e){var t=e.originalEvent;return t.targetTouches&&1===t.targetTouches.length?!0:t.pointerType&&"mouse"!==t.pointerType&&t.pointerType!==t.MSPOINTER_TYPE_MOUSE?!0:!1}function s(e){if(a(e)){w=!0;var t=i(e);p.pageX=t.pageX,p.pageY=t.pageY,f=(new Date).getTime(),null!==b&&clearInterval(b),e.stopPropagation()}}function c(e){if(!h&&w&&a(e)){var t=i(e),o={pageX:t.pageX,pageY:t.pageY},r=o.pageX-p.pageX,l=o.pageY-p.pageY;n(r,l),p=o;var s=(new Date).getTime(),c=s-f;c>0&&(v.x=r/c,v.y=l/c,f=s),g(r,l)&&(e.stopPropagation(),e.preventDefault())}}function u(){!h&&w&&(w=!1,clearInterval(b),b=setInterval(function(){return x()?.01>Math.abs(v.x)&&.01>Math.abs(v.y)?(clearInterval(b),void 0):(n(30*v.x,30*v.y),v.x*=.8,v.y*=.8,void 0):(clearInterval(b),void 0)},10))}var p={},f=0,v={},b=null,h=!1,w=!1;t&&(e(window).bind(K("touchstart"),r),e(window).bind(K("touchend"),l),M.bind(K("touchstart"),s),M.bind(K("touchmove"),c),M.bind(K("touchend"),u)),o&&(window.PointerEvent?(e(window).bind(K("pointerdown"),r),e(window).bind(K("pointerup"),l),M.bind(K("pointerdown"),s),M.bind(K("pointermove"),c),M.bind(K("pointerup"),u)):window.MSPointerEvent&&(e(window).bind(K("MSPointerDown"),r),e(window).bind(K("MSPointerUp"),l),M.bind(K("MSPointerDown"),s),M.bind(K("MSPointerMove"),c),M.bind(K("MSPointerUp"),u)))}function y(){M.bind(K("scroll"),function(){d()})}function L(){M.unbind(K()),e(window).unbind(K()),e(q).unbind(K()),M.data("perfect-scrollbar",null),M.data("perfect-scrollbar-update",null),M.data("perfect-scrollbar-destroy",null),U.remove(),J.remove(),H.remove(),G.remove(),M=H=G=U=J=X=O=E=D=C=Y=k=W=_=N=Q=R=j=V=Z=$=B=K=null}function S(){d(),y(),p(),f(),w(),m(),b(),(ot||nt)&&T(ot,nt),P.useKeyboard&&h(),M.data("perfect-scrollbar",M),M.data("perfect-scrollbar-update",d),M.data("perfect-scrollbar-destroy",L)}var P=e.extend(!0,{},o),M=e(this),x=function(){return!!M};if("object"==typeof n?e.extend(!0,P,n):i=n,"update"===i)return M.data("perfect-scrollbar-update")&&M.data("perfect-scrollbar-update")(),M;if("destroy"===i)return M.data("perfect-scrollbar-destroy")&&M.data("perfect-scrollbar-destroy")(),M;if(M.data("perfect-scrollbar"))return M.data("perfect-scrollbar");M.addClass("ps-container");var E,D,C,Y,X,k,W,I,O,R,j,A,B="rtl"===M.css("direction"),K=r(),q=this.ownerDocument||document,H=e("<div class='ps-scrollbar-x-rail'>").appendTo(M),U=e("<div class='ps-scrollbar-x'>").appendTo(H),_=t(H.css("bottom")),N=_===_,Q=N?null:t(H.css("top")),z=t(H.css("borderLeftWidth"))+t(H.css("borderRightWidth")),F=t(H.css("marginLeft"))+t(H.css("marginRight")),G=e("<div class='ps-scrollbar-y-rail'>").appendTo(M),J=e("<div class='ps-scrollbar-y'>").appendTo(G),V=t(G.css("right")),Z=V===V,$=Z?null:t(G.css("left")),et=t(G.css("borderTopWidth"))+t(G.css("borderBottomWidth")),tt=t(G.css("marginTop"))+t(G.css("marginBottom")),ot="ontouchstart"in window||window.DocumentTouch&&document instanceof window.DocumentTouch,nt=null!==window.navigator.msMaxTouchPoints;return S(),M})}}); |