perfect-scrollbar/min/perfect-scrollbar-0.4.8.with-mousewheel.min.js
Hyunje Alex Jun 4c0163a2f6 Release 0.4.8.
1. Bug fixes.
2014-01-22 11:21:35 +09:00

4 lines
7.5 KiB
JavaScript

/*! perfect-scrollbar - v0.4.8
* http://noraesae.github.com/perfect-scrollbar/
* Copyright (c) 2014 Hyeonje Jun; Licensed MIT */
"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()};T.bind("click"+S,e),m.bind("click"+S,function(e){var n=parseInt(v/2,10),t=e.pageY-m.offset().top-n,o=u-v,r=t/o;0>r?r=0:r>1&&(r=1),s.scrollTop((d-u)*r)}),w.bind("click"+S,e),g.bind("click"+S,function(e){var n=parseInt(f/2,10),t=e.pageX-g.offset().left-n,o=c-f,r=t/o;0>r?r=0:r>1&&(r=1),s.scrollLeft((p-c)*r)})},A=function(){var n=function(e,n){s.scrollTop(s.scrollTop()-n),s.scrollLeft(s.scrollLeft()-e),X()},t={},o=0,r={},l=null,a=!1;e(window).bind("touchstart"+S,function(){a=!0}),e(window).bind("touchend"+S,function(){a=!1}),s.bind("touchstart"+S,function(e){var n=e.originalEvent.targetTouches[0];t.pageX=n.pageX,t.pageY=n.pageY,o=(new Date).getTime(),null!==l&&clearInterval(l),e.stopPropagation()}),s.bind("touchmove"+S,function(e){if(!a&&1===e.originalEvent.targetTouches.length){var l=e.originalEvent.targetTouches[0],s={};s.pageX=l.pageX,s.pageY=l.pageY;var i=s.pageX-t.pageX,c=s.pageY-t.pageY;n(i,c),t=s;var u=(new Date).getTime();r.x=i/(u-o),r.y=c/(u-o),o=u,e.preventDefault()}}),s.bind("touchend"+S,function(){clearInterval(l),l=setInterval(function(){return.01>Math.abs(r.x)&&.01>Math.abs(r.y)?(clearInterval(l),void 0):(n(30*r.x,30*r.y),r.x*=.8,r.y*=.8,void 0)},10)})},j=function(){s.bind("scroll"+S,function(){X()})},W=function(){s.unbind(S),e(window).unbind(S),e(document).unbind(S),s.data("perfect-scrollbar",null),s.data("perfect-scrollbar-update",null),s.data("perfect-scrollbar-destroy",null),w.remove(),T.remove(),g.remove(),m.remove(),w=T=c=u=p=d=f=h=L=v=b=y=null},H=function(n){s.addClass("ie").addClass("ie"+n);var t=function(){var n=function(){e(this).addClass("hover")},t=function(){e(this).removeClass("hover")};s.bind("mouseenter"+S,n).bind("mouseleave"+S,t),g.bind("mouseenter"+S,n).bind("mouseleave"+S,t),m.bind("mouseenter"+S,n).bind("mouseleave"+S,t),w.bind("mouseenter"+S,n).bind("mouseleave"+S,t),T.bind("mouseenter"+S,n).bind("mouseleave"+S,t)},o=function(){k=function(){w.css({left:h+s.scrollLeft(),bottom:L,width:f}),T.css({top:b+s.scrollTop(),right:y,height:v}),w.hide().show(),T.hide().show()}};6===n&&(t(),o())},B="ontouchstart"in window||window.DocumentTouch&&document instanceof window.DocumentTouch,K=function(){var e=navigator.userAgent.toLowerCase().match(/(msie) ([\w.]+)/);e&&"msie"===e[1]&&H(parseInt(e[2],10)),X(),j(),C(),Y(),E(),B&&A(),s.mousewheel&&M(),l.useKeyboard&&O(),s.data("perfect-scrollbar",s),s.data("perfect-scrollbar-update",X),s.data("perfect-scrollbar-destroy",W)};return K(),s})}}),function(e){function n(n){var t=n||window.event,o=[].slice.call(arguments,1),r=0,l=0,s=0;return n=e.event.fix(t),n.type="mousewheel",t.wheelDelta&&(r=t.wheelDelta/120),t.detail&&(r=-t.detail/3),s=r,void 0!==t.axis&&t.axis===t.HORIZONTAL_AXIS&&(s=0,l=-1*r),void 0!==t.wheelDeltaY&&(s=t.wheelDeltaY/120),void 0!==t.wheelDeltaX&&(l=-1*t.wheelDeltaX/120),o.unshift(n,r,l,s),(e.event.dispatch||e.event.handle).apply(this,o)}var t=["DOMMouseScroll","mousewheel"];if(e.event.fixHooks)for(var o=t.length;o;)e.event.fixHooks[t[--o]]=e.event.mouseHooks;e.event.special.mousewheel={setup:function(){if(this.addEventListener)for(var e=t.length;e;)this.addEventListener(t[--e],n,!1);else this.onmousewheel=n},teardown:function(){if(this.removeEventListener)for(var e=t.length;e;)this.removeEventListener(t[--e],n,!1);else this.onmousewheel=null}},e.fn.extend({mousewheel:function(e){return e?this.bind("mousewheel",e):this.trigger("mousewheel")},unmousewheel:function(e){return this.unbind("mousewheel",e)}})}(jQuery);