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