下一篇全日历鼠标滚轮事件

Question

我正在尝试在Fullcalendar（1.6.2）中进行一个简单的思考，并通过鼠标滚轮上下模拟上一个和下一个按钮，类似于Google日历。

这是我正在使用的代码，我认为这段代码来自这里的另一个问题，但我不记得有一个：S

calendar.bind('mousewheel', function(event, delta) {
var view =  calendar.fullCalendar('getView');
//alert(view.name); //Can retrieve the view name successfully 
//alert(delta); // Undefined
//alert(event); // [Object object]
if (view.name == "month") {
                if (delta > 0) {
                alert(delta);  
                calendar.fullCalendar('prev'); 
            }
            if (delta < 0) { 
                alert(delta);
                calendar.fullCalendar('next'); 
            }
            return false;
}

}）;

问题是增量是未定义的

有人知道我做错了什么吗？我对Jquery或Javascript很陌生

编辑

var mousewheelevt=(/Firefox/i.test(navigator.userAgent))? "DOMMouseScroll" : "mousewheel";
// left: 37, up: 38, right: 39, down: 40,
// spacebar: 32, pageup: 33, pagedown: 34, end: 35, home: 36
var keys = [37, 38, 39, 40];
function preventDefault(e) {
  e = e || window.event;
  if (e.preventDefault)
  e.preventDefault();
  e.returnValue = false;  
}
function keydown(e) 
{
    for (var i = keys.length; i--;) {
      if (e.keyCode === keys[i]) {
          preventDefault(e);
          return;
       }
   }
 } 
  function wheel(e) {
    preventDefault(e);
  }
  function disable_scroll() 
  {
    if (window.addEventListener) {
       window.addEventListener('DOMMouseScroll', wheel, false);
   }
    window.onmousewheel = document.onmousewheel = wheel;
     document.onkeydown = keydown;
  }
  function enable_scroll() 
  {
     if (window.removeEventListener) {
         window.removeEventListener('DOMMouseScroll', wheel, false);
    }  
    window.onmousewheel = document.onmousewheel = document.onkeydown = null;  
  }

  calendar.bind(mousewheelevt, function(e) 
  {
   var evt=window.event || e;
   var delta=evt.detail ? evt.detail*(-120) : evt.wheelDelta;
    if(delta > 0){   
      calendar.fullCalendar('next');        
    }
    if(delta < 0){              
      calendar.fullCalendar('prev');        
    }        
   });
    calendar.bind("mouseleave", function() 
    {
     enable_scroll();
    });
   calendar.bind("mouseenter", function() 
   {
     disable_scroll();
    });

大部分代码都是从网上复制的，我只是根据我的问题对其进行了调整。

这适用于Chrome（最新版本）和I.E（最新版本）在火狐浏览器（最新版本）中不起作用

没有检查他们中的任何一个的旧版本。

任何人都可以看到在FF中无法工作的问题吗？

Answer 1

我想

我明白了，它有点笨拙，但它确实可以解决问题!!欢迎任何建设性的批评。这现在适用于IE，Firefox，Chrome最新版本。

//This checks the browser in use and populates da var accordingly with the browser
var mousewheelevt=(/Firefox/i.test(navigator.userAgent))? "DOMMouseScroll" : "mousewheel";
//Prevents the scroll event for the windows so you cant scroll the window       
function preventDefault(e) {
  e = e || window.event;
  if (e.preventDefault)
      e.preventDefault();
  e.returnValue = false;  
}       
//I think this could be eliminated but in the examples i found used it  
function wheel(e) {
  preventDefault(e);        
}
//adds the scroll event to the window       
function disable_scroll(){
    if (document.attachEvent) //if IE (and Opera depending on user setting)
        document.attachEvent("on"+mousewheelevt, wheel);
    else if (document.addEventListener) //WC3 browsers
        document.addEventListener(mousewheelevt, wheel, false);                 
}   
//removes the scroll event to the window    
function enable_scroll() 
{
    if (document.removeEvent) //if IE (and Opera depending on user setting)
        document.removeEvent("on"+mousewheelevt, wheel);
    else if (document.removeEventListener) //WC3 browsers
        document.removeEventListener(mousewheelevt, wheel, false);  
}           
//binds the scroll event to the calendar's DIV you have made    
calendar.bind(mousewheelevt, function(e){
    var evt = window.event || e; //window.event para Chrome e IE || 'e' para FF
    var delta;          
    delta = evt.detail ? evt.detail*(-120) : evt.wheelDelta;                    
    if(mousewheelevt === "DOMMouseScroll"){
        delta = evt.originalEvent.detail ? evt.originalEvent.detail*(-120) : evt.wheelDelta;
    }           
 if(delta > 0){  
    calendar.fullCalendar('next');      
     }
     if(delta < 0){             
        calendar.fullCalendar('prev');      
     }  
});
//hover event to disable or enable the window scroll    
calendar.hover(
    function(){
        enable_scroll();
        console.log("mouseEnter");
    },
    function(){
        disable_scroll();
        console.log("mouseLeave");
    }
);
//binds to the calendar's div the mouseleave event      
calendar.bind("mouseleave", function() 
{
     enable_scroll();
});
//binds to the calendar's div the mouseenter event   
calendar.bind("mouseenter", function() 
{
     disable_scroll();
});