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- /*!
- * jQuery Mousewheel 3.1.13
- *
- * Copyright jQuery Foundation and other contributors
- * Released under the MIT license
- * http://jquery.org/license
- */
- (function(factory){if(typeof define==='function'&&define.amd){define(['jquery'],factory)}else if(typeof exports==='object'){module.exports=factory}else if(window.layui&&layui.define){layui.define('jquery',function(exports){var $=layui.jquery;exports('mousewheel',factory($))})}else{factory(jQuery)}}(function($){var toFix=['wheel','mousewheel','DOMMouseScroll','MozMousePixelScroll'],toBind=('onwheel'in document||document.documentMode>=9)?['wheel']:['mousewheel','DomMouseScroll','MozMousePixelScroll'],slice=Array.prototype.slice,nullLowestDeltaTimeout,lowestDelta;if($.event.fixHooks){for(var i=toFix.length;i;){$.event.fixHooks[toFix[--i]]=$.event.mouseHooks}}var special=$.event.special.mousewheel={version:'3.1.12',setup:function(){if(this.addEventListener){for(var i=toBind.length;i;){this.addEventListener(toBind[--i],handler,false)}}else{this.onmousewheel=handler}$.data(this,'mousewheel-line-height',special.getLineHeight(this));$.data(this,'mousewheel-page-height',special.getPageHeight(this))},teardown:function(){if(this.removeEventListener){for(var i=toBind.length;i;){this.removeEventListener(toBind[--i],handler,false)}}else{this.onmousewheel=null}$.removeData(this,'mousewheel-line-height');$.removeData(this,'mousewheel-page-height')},getLineHeight:function(elem){var $elem=$(elem),$parent=$elem['offsetParent'in $.fn?'offsetParent':'parent']();if(!$parent.length){$parent=$('body')}return parseInt($parent.css('fontSize'),10)||parseInt($elem.css('fontSize'),10)||16},getPageHeight:function(elem){return $(elem).height()},settings:{adjustOldDeltas:true,normalizeOffset:true}};$.fn.extend({mousewheel:function(fn){return fn?this.bind('mousewheel',fn):this.trigger('mousewheel')},unmousewheel:function(fn){return this.unbind('mousewheel',fn)}});function handler(event){var orgEvent=event||window.event,args=slice.call(arguments,1),delta=0,deltaX=0,deltaY=0,absDelta=0,offsetX=0,offsetY=0;event=$.event.fix(orgEvent);event.type='mousewheel';if('detail'in orgEvent){deltaY=orgEvent.detail*-1}if('wheelDelta'in orgEvent){deltaY=orgEvent.wheelDelta}if('wheelDeltaY'in orgEvent){deltaY=orgEvent.wheelDeltaY}if('wheelDeltaX'in orgEvent){deltaX=orgEvent.wheelDeltaX*-1}if('axis'in orgEvent&&orgEvent.axis===orgEvent.HORIZONTAL_AXIS){deltaX=deltaY*-1;deltaY=0}delta=deltaY===0?deltaX:deltaY;if('deltaY'in orgEvent){deltaY=orgEvent.deltaY*-1;delta=deltaY}if('deltaX'in orgEvent){deltaX=orgEvent.deltaX;if(deltaY===0){delta=deltaX*-1}}if(deltaY===0&&deltaX===0){return}if(orgEvent.deltaMode===1){var lineHeight=$.data(this,'mousewheel-line-height');delta*=lineHeight;deltaY*=lineHeight;deltaX*=lineHeight}else if(orgEvent.deltaMode===2){var pageHeight=$.data(this,'mousewheel-page-height');delta*=pageHeight;deltaY*=pageHeight;deltaX*=pageHeight}absDelta=Math.max(Math.abs(deltaY),Math.abs(deltaX));if(!lowestDelta||absDelta<lowestDelta){lowestDelta=absDelta;if(shouldAdjustOldDeltas(orgEvent,absDelta)){lowestDelta/=40}}if(shouldAdjustOldDeltas(orgEvent,absDelta)){delta/=40;deltaX/=40;deltaY/=40}delta=Math[delta>=1?'floor':'ceil'](delta/lowestDelta);deltaX=Math[deltaX>=1?'floor':'ceil'](deltaX/lowestDelta);deltaY=Math[deltaY>=1?'floor':'ceil'](deltaY/lowestDelta);if(special.settings.normalizeOffset&&this.getBoundingClientRect){var boundingRect=this.getBoundingClientRect();offsetX=event.clientX-boundingRect.left;offsetY=event.clientY-boundingRect.top}event.deltaX=deltaX;event.deltaY=deltaY;event.deltaFactor=lowestDelta;event.offsetX=offsetX;event.offsetY=offsetY;event.deltaMode=0;args.unshift(event,delta,deltaX,deltaY);if(nullLowestDeltaTimeout){clearTimeout(nullLowestDeltaTimeout)}nullLowestDeltaTimeout=setTimeout(nullLowestDelta,200);return($.event.dispatch||$.event.handle).apply(this,args)}function nullLowestDelta(){lowestDelta=null}function shouldAdjustOldDeltas(orgEvent,absDelta){return special.settings.adjustOldDeltas&&orgEvent.type==='mousewheel'&&absDelta%120===0}}));
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