标签:style blog color io ar sp div on cti
/* 事件:DOMMouseScroll(W3C)、onmousewheel(IE/Opera/ChromeS) 滚轮方向判断:wheelDelta(IE/Opera/Chrome)、detail(Firefox) 滚轮方向值:wheelDelta(上:120,下:-120)、detail(上:-3,下:3)
ps:注意某些时候需要阻止滚动默认行为 */ /**
* 鼠标滚轮
* @param o{object} 绑定滚轮事件的对象
* @param callback{function} 滚轮上下滚动时执行的函数,接收一个参数(上:120,下:-120)
*
* wheel(o, function(detail){
* alert(detail);
* });
*/ function wheel(o, callback){ function fn(e){ var e = e || window.event, detail = 0; if(e.wheelDelta){ // IE/Opera/Chrome detail = e.wheelDelta; }else if(e.detail){ // Firefox detail = -e.detail * 40; } callback(detail); } if(o.addEventListener){ // W3C o.addEventListener(‘DOMMouseScroll‘,fn,false); } o.onmousewheel = fn; // IE/Opera/Chrome }
/* W3C:左(0),中(1),右(2) IE:左(0, 1, 3, 5, 7),中(4),右(2, 6) */ /* * return {number} 0, 1, 2 * * addEvent(document, ‘mousedown‘, function(ev){ * alert(getEventButton(ev)); * }); */ function getEventButton(event){ var ev = event || window.event; if(document.implementation.hasFeature(‘MouseEvents‘, ‘2.0‘)){ return ev.button; }else{ return [0, 0, 2, 0, 1, 0, 2, 0][ev.button]; } }
标签:style blog color io ar sp div on cti
原文地址:http://www.cnblogs.com/jununx/p/4006392.html