2013-06-16 16:59:21 +08:00
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(function(e){var t={wheelSpeed:10,wheelPropagation:!1};e.fn.perfectScrollbar=function(o,r){return this.each(function(){var n=e.extend(!0,{},t);if("object"==typeof o?e.extend(!0,n,o):r=o,"update"===r)return e(this).data("perfect-scrollbar-update")&&e(this).data("perfect-scrollbar-update")(),e(this);if("destroy"===r)return e(this).data("perfect-scrollbar-destroy")&&e(this).data("perfect-scrollbar-destroy")(),e(this);if(e(this).data("perfect-scrollbar"))return e(this).data("perfect-scrollbar");var l,s,a,c,i,p,f,u,d=e(this).addClass("ps-container"),h=e("<div class='ps-scrollbar-x'></div>").appendTo(d),v=e("<div class='ps-scrollbar-y'></div>").appendTo(d),g=parseInt(h.css("bottom"),10),b=parseInt(v.css("right"),10),m=function(){var e=parseInt(u*c/s,10);d.scrollTop(e),h.css({bottom:g-e})},w=function(){var e=parseInt(p*a/l,10);d.scrollLeft(e),v.css({right:b-e})},T=function(){h.css({left:p+d.scrollLeft(),bottom:g-d.scrollTop(),width:i}),v.css({top:u+d.scrollTop(),right:b-d.scrollLeft(),height:f})},L=function(){l=d.width(),s=d.height(),a=d.prop("scrollWidth"),c=d.prop("scrollHeight"),a>l?(i=parseInt(l*l/a,10),p=parseInt(d.scrollLeft()*l/a,10)):(i=0,p=0,d.scrollLeft(0)),c>s?(f=parseInt(s*s/c,10),u=parseInt(d.scrollTop()*s/c,10)):(f=0,u=0,d.scrollTop(0)),u>=s-f&&(u=s-f),p>=l-i&&(p=l-i),T()},I=function(e,t){var o=e+t,r=l-i;p=0>o?0:o>r?r:o,h.css({left:p+d.scrollLeft()})},y=function(e,t){var o=e+t,r=s-f;u=0>o?0:o>r?r:o,v.css({top:u+d.scrollTop()})},C=function(){var t,o;h.bind("mousedown.perfect-scroll",function(e){o=e.pageX,t=h.position().left,h.addClass("in-scrolling"),e.stopPropagation(),e.preventDefault()}),e(document).bind("mousemove.perfect-scroll",function(e){h.hasClass("in-scrolling")&&(w(),I(t,e.pageX-o),e.stopPropagation(),e.preventDefault())}),e(document).bind("mouseup.perfect-scroll",function(){h.hasClass("in-scrolling")&&h.removeClass("in-scrolling")})},P=function(){var t,o;v.bind("mousedown.perfect-scroll",function(e){o=e.pageY,t=v.position().top,v.addClass("in-scrolling"),e.stopPropagation(),e.preventDefault()}),e(document).bind("mousemove.perfect-scroll",function(e){v.hasClass("in-scrolling")&&(m(),y(t,e.pageY-o),e.stopPropagation(),e.preventDefault())}),e(document).bind("mouseup.perfect-scroll",function(){v.hasClass("in-scrolling")&&v.removeClass("in-scrolling")})},D=function(){var e=function(e,t){var o=d.scrollTop();if(0===o&&t>0&&0===e)return!n.wheelPropagation;if(o>=c-s&&0>t&&0===e)return!n.wheelPropagation;var r=d.scrollLeft();return 0===r&&0>e&&0===t?!n.wheelPropagation:r>=a-l&&e>0&&0===t?!n.wheelPropagation:!0};d.bind("mousewheel.perfect-scroll",function(t,o,r,l){d.scrollTop(d.scrollTop()-l*n.wheelSpeed),d.scrollLeft(d.scrollLeft()+r*n.wheelSpeed),L(),e(r,l)&&t.preventDefault()})},x=function(){var t=function(e,t){d.scrollTop(d.scrollTop()-t),d.scrollLeft(d.scrollLeft()-e),L()},o={},r=0,n={},l=null,s=!1;e(window).bind("touchstart.perfect-scroll",function(){s=!0}),e(window).bind("touchend.perfect-scroll",function(){s=!1}),d.bind("touchstart.perfect-scroll",function(e){var t=e.originalEvent.targetTouches[0];o.pageX=t.pageX,o.pageY=t.pageY,r=(new Date).getTime(),null!==l&&clearInterval(l),e.stopPropagation()}),d.bind("touchmove.perfect-scroll",function(e){if(!s&&1===e.originalEvent.targetTouches.length){var l=e.originalEvent.targetTouches[0],a={};a.pageX=l.pageX,a.pageY=l.pageY;var c=a.pageX-o.pageX,i=a.pageY-o.pageY;t(c,i),o=a;var p=(new Date).getTime();n.x=c/(p-r),n.y=i/(p-r),r=p,e.preventDefault()}}),d.bind("touchend.perfect-scroll",function(){l=setInterval(function(){return.01>Math.abs(n.x)&&.01>Math.abs(n.y)?(clearInterval(l),void 0):(t(30*n.x,30*n.y),n.x*=.8,n.y*=.8,void 0)},10)})},X=function(){h.remove(),v.remove(),d.unbind(".perfect-scroll"),e(window).unbind(".perfect-scroll"),d.data("perfect-scrollbar",null),d.data("perfect-scrollbar-update",null),d.data("perfect-scrollbar-destroy",null)},Y=function(t){d.addClass("ie").addClass("ie"+t);var o=function(){var t=function(){e(this).addClass("hover")},o=function(){e(this).removeClass("hover")};d.bind("mouseenter.perfect-scroll",t).bind("mouseleave.perfect-scroll"
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