jquery.mousewheel.min.js

/*!
 * jQuery Mousewheel 3.1.13
 * Copyright OpenJS Foundation and other contributors
 */
!function(e){"function"==typeof define&&define.amd?define(["jquery"],e):"object"==typeof exports?module.exports=e:e(jQuery)}(function(u){var f,d,e=["wheel","mousewheel","DOMMouseScroll","MozMousePixelScroll"],t="onwheel"in window.document||9<=window.document.documentMode?["wheel"]:["mousewheel","DomMouseScroll","MozMousePixelScroll"],w=Array.prototype.slice;if(u.event.fixHooks)for(var i=e.length;i;)u.event.fixHooks[e[--i]]=u.event.mouseHooks;var c=u.event.special.mousewheel={version:"3.1.12",setup:function(){if(this.addEventListener)for(var e=t.length;e;)this.addEventListener(t[--e],n,!1);else this.onmousewheel=n;u.data(this,"mousewheel-line-height",c.getLineHeight(this)),u.data(this,"mousewheel-page-height",c.getPageHeight(this))},teardown:function(){if(this.removeEventListener)for(var e=t.length;e;)this.removeEventListener(t[--e],n,!1);else this.onmousewheel=null;u.removeData(this,"mousewheel-line-height"),u.removeData(this,"mousewheel-page-height")},getLineHeight:function(e){var t=u(e),i=t["offsetParent"in u.fn?"offsetParent":"parent"]();return i.length||(i=u("body")),parseInt(i.css("fontSize"),10)||parseInt(t.css("fontSize"),10)||16},getPageHeight:function(e){return u(e).height()},settings:{adjustOldDeltas:!0,normalizeOffset:!0}};function n(e){var t,i=e||window.event,n=w.call(arguments,1),o=0,l=0,s=0;if((e=u.event.fix(i)).type="mousewheel","detail"in i&&(s=-1*i.detail),"wheelDelta"in i&&(s=i.wheelDelta),"wheelDeltaY"in i&&(s=i.wheelDeltaY),"wheelDeltaX"in i&&(l=-1*i.wheelDeltaX),"axis"in i&&i.axis===i.HORIZONTAL_AXIS&&(l=-1*s,s=0),o=0===s?l:s,"deltaY"in i&&(o=s=-1*i.deltaY),"deltaX"in i&&(l=i.deltaX,0===s&&(o=-1*l)),0!==s||0!==l){if(1===i.deltaMode){var a=u.data(this,"mousewheel-line-height");o*=a,s*=a,l*=a}else if(2===i.deltaMode){var h=u.data(this,"mousewheel-page-height");o*=h,s*=h,l*=h}if(t=Math.max(Math.abs(s),Math.abs(l)),(!d||t<d)&&g(i,d=t)&&(d/=40),g(i,t)&&(o/=40,l/=40,s/=40),o=Math[1<=o?"floor":"ceil"](o/d),l=Math[1<=l?"floor":"ceil"](l/d),s=Math[1<=s?"floor":"ceil"](s/d),c.settings.normalizeOffset&&this.getBoundingClientRect){var r=this.getBoundingClientRect();e.offsetX=e.clientX-r.left,e.offsetY=e.clientY-r.top}return e.deltaX=l,e.deltaY=s,e.deltaFactor=d,e.deltaMode=0,n.unshift(e,o,l,s),f&&window.clearTimeout(f),f=window.setTimeout(m,200),(u.event.dispatch||u.event.handle).apply(this,n)}}function m(){d=null}function g(e,t){return c.settings.adjustOldDeltas&&"mousewheel"===e.type&&t%120==0}u.fn.extend({mousewheel:function(e){return e?this.on("mousewheel",e):this.trigger("mousewheel")},unmousewheel:function(e){return this.off("mousewheel",e)}})});