jQuery检测鼠标停留在元素上的秒数

Question

是否有办法检测鼠标指针停留在HTML元素上的秒数?

我想检索鼠标停留在元素上的秒数，以便在回调事件上放置一点延迟…如果可能的话:)

我正在尝试一个简单的for()循环检测计数器:

var time_over ; 
$('.bean-active').live('mouseover',function(){  
  id_tag = $(this).attr("id");   
  for(time_over = 1;time_over <= 3000;time_over ++){
      if(time_over == 3000){
         $('.bean-bubble,.bean-bubble img').hide();   
         $('#bean-bubble-'+id_tag+',#bean-bubble-'+id_tag+' img').show();
      }  
  }   
});

问题是它不工作:(

我还想绑定一个mouseleave事件，脚本逻辑应该是:

while ( mouseover element count how many time it stays over) 
  if (time == n)
  { do somenthing } 
if (mouseleave from element earlier then time)
{ do somenthing different }

Answer 1

给定这个标记:

<div id="hoverOverMe">Hover over me</div>
<div id="output"></div>

类似这样的插件应该可以做到:

(function($) {
    $.fn.delayedAction = function(options)
    {
        var settings = $.extend(
            {},
            {
                delayedAction : function(){},
                cancelledAction: function(){},
                hoverTime: 1000               
            },
            options);
        return this.each(function(){
           var $this = $(this);
            $this.hover(function(){  
               $this.data('timerId',
                          setTimeout(function(){
                                      $this.data('hover',false);
                                      settings.delayedAction($this);
                                      },settings.hoverTime));
                $this.data('hover',true);
            },
            function(){        
                if($this.data('hover')){       
                    clearTimeout($this.data('timerId'));
                    settings.cancelledAction($this);
                }
                $this.data('hover',false);
            } );
        });
    }
})(jQuery);

和主叫代码:

$('#hoverOverMe').delayedAction (
    {
        delayedAction: function($element){
            $('#output').html($element.attr('id') + ' was hovered for 3 seconds');
        },
        cancelledAction: function($element){
            $('#output').html($element.attr('id') + ' was hovered for less than 3 seconds');
        },
        hoverTime: 3000 // 3 seconds
    }
);

实例:http://jsfiddle.net/nrUqS/

对于您的要求，像这样的内容应该足够了:

$('.bean-active').delayedAction(
{ 
   delayedAction: function($element){  
       id_tag = $element.attr("id");   
       $('.bean-bubble,.bean-bubble img').hide();   
       $('#bean-bubble-'+id_tag+',#bean-bubble-'+id_tag+' img').show();
    },
    hoverTime: 3000
});

Answer 2

这段代码将计算鼠标悬停在元素上的时间(以毫秒为单位):

$(document).ready(function() {
$('#element').bind('mouseenter mouseleave', function(evt) {
    var currentTime == new Date();
    if (evt.type === 'mouseenter') {
        $(this).data('mouseenterTime') == currentTime.getTime();
    } else if (evt.type === 'mouseleave') {
        var mouseoverTime = currentTime.getTime() - $(this).data('mouseenterTime');
        alert('mouseover time was: ' + mouseoverTime);
    }
})
});

Answer 3

您应该能够利用hover()函数来捕获鼠标在特定元素上移动的时间，然后在鼠标从该对象上移开时根据需要做出反应。

$("#someDiv").hover(function(){ 
    //start counter
}, function(){
    //stop counter
});

Answer 4

我使用了C. Spencer Beggs的答案作为模板，因为他的答案不适合我。我使用了简单的变量，包含了许多console.log消息，并将'=='代码修改为'='。这个例子将等待3秒的"悬停在一个链接上"的动作发生。HTH某人。

var mouseenterTime = 0;
$(document).on('mouseenter mouseleave', '#element', function (evt)
{
    var currentTime = new Date();
    if (evt.type === 'mouseenter') 
    {
        mouseenterTime = currentTime.getTime();
        console.log('mouseenterTime (#1): ' + mouseenterTime);
    } else if (evt.type === 'mouseleave') {
        console.log('mouseenterTime (#2): ' + mouseenterTime);
        var mouseoverTime = currentTime.getTime() - mouseenterTime;
        console.log('mouseover time was: ' + mouseoverTime);
        // Checking if the Hover action has latest for longer than 3 seconds. 
        if(mouseoverTime > 3000) {console.log("Three seconds have elapsed")}
    }
})