How to programmatically disable page scrolling with jQuery

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滥情空心
滥情空心 2020-11-22 08:09

Using jQuery, I would like to disable scrolling of the body:

My idea is to:

  1. Set body{ overflow: hidden;}
  2. Capture the current
23条回答
  •  暗喜
    暗喜 (楼主)
    2020-11-22 08:21

    The only way I've found to do this is similar to what you described:

    1. Grab current scroll position (don't forget horizontal axis!).
    2. Set overflow to hidden (probably want to retain previous overflow value).
    3. Scroll document to stored scroll position with scrollTo().

    Then when you're ready to allow scrolling again, undo all that.

    Edit: no reason I can't give you the code since I went to the trouble to dig it up...

    // lock scroll position, but retain settings for later
    var scrollPosition = [
      self.pageXOffset || document.documentElement.scrollLeft || document.body.scrollLeft,
      self.pageYOffset || document.documentElement.scrollTop  || document.body.scrollTop
    ];
    var html = jQuery('html'); // it would make more sense to apply this to body, but IE7 won't have that
    html.data('scroll-position', scrollPosition);
    html.data('previous-overflow', html.css('overflow'));
    html.css('overflow', 'hidden');
    window.scrollTo(scrollPosition[0], scrollPosition[1]);
    
    
    // un-lock scroll position
    var html = jQuery('html');
    var scrollPosition = html.data('scroll-position');
    html.css('overflow', html.data('previous-overflow'));
    window.scrollTo(scrollPosition[0], scrollPosition[1])
    

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