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  1. #1
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    detect window scroll position

    How do I detect when the window is set to a certain scroll position? For example, I have this event:

    $('html,body').animate({scrollLeft: $("#div").offset().left-window.innerWidth/2}, 1000)

    How do I execute a function when that specific location has been scrolled to? For example, anytime the window is set to that position, div2 can be clicked? Not sure how to write that if statement?
    Last edited by resin; 02-22-2014 at 11:28 AM.

  • #2
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    This should give you a good place to start:
    Code:
    <script type="text/javascript">
    window.onscroll = scroll;
    
    function scroll () {
    var pos_left = document.getElementById("div2").offsetLeft;
      if(pos_left >= YOU OFFSET HERE){
    	  MAKE IT CLICKABLE
      }
    }
    </script>
    Last edited by sunfighter; 02-22-2014 at 01:12 PM.
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  • #3
    The fat guy next door VIPStephan's Avatar
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    And if you’re more into using jQuery read the official documentation, it has all info you ever need:

  • #4
    The fat guy next door VIPStephan's Avatar
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    Code:
    if($('html,body').scrollTop() === [your value])

  • #5
    Supreme Master coder! glenngv's Avatar
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    I think what the OP wants is to execute a function when the window is set to a certain scroll position while the animation is in progress. If so, then you need to use the step callback option of the jQuery animate function.
    Code:
    $('html,body').animate({
        scrollLeft: $("#div").offset().left - ($(window).width()/2)
    }, {
        duration: 1000,
        step: function (now, fx) {
            var x = $(window).scrollLeft();
    
            //check x here
        }
    });
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