如何修复 Firefox 的 window 滚动事件侦听器?

How to fix window scroll event listener for firefox?


function hide_on_scroll(obj) {
  // Throw Error if input type is not object or navid is not passed
  if(typeof(obj)!=="object" || obj.nav_id===undefined){
    throw new TypeError("Argument must be an Object, also confirm NavId");
  }

  // Get Function Paramenters
  var nav_id                  = obj.nav_id;
  var nav_offset              = !!obj.nav_offset ? obj.nav_offset : 200;
  var nav_position            = !!obj.nav_position ? obj.nav_position : 'top';
  var hide_onscroll_mobile    = !!obj.hide_onscroll_mobile ? true : false;
  var mobile_width            = !!obj.mobile_width ? obj.mobile_width : 576;
  nav_position = nav_position.toLowerCase();

  // Prepare Navbar
  var navbar = document.getElementById(nav_id);
  if(navbar==undefined){throw new TypeError("Recheck Passed Navigation Id"); }

  var nav_height = navbar.offsetHeight;
  var navClasses = document.createElement('style');
  navClasses.type = 'text/css';
  navClasses.innerHTML = 
  '.nav-scroll-up{-webkit-transform: translateY(-'+78+'px);-ms-transform: translateY(-'+78+'px);transform: translateY(-'+78+'px);}' +
  '.nav-scroll-down{-webkit-transform: translateY('+78+'px);-ms-transform: translateY('+78+'px);transform: translateY('+78+'px);}' +
  '.nav-scroll-fixed-'+ nav_position +'{position: fixed;'+ nav_position +': 0;right: 0;left: 0;z-index: 1000;}' +
  '.nav-scroll-transition{will-change: transform; -webkit-transition: -webkit-transform 0.5s cubic-bezier(0.5, 0, 0.25, 1);transition: -webkit-transform 0.5s cubic-bezier(0.5, 0, 0.25, 1);-o-transition: transform 0.5s cubic-bezier(0.5, 0, 0.25, 1);transition: transform 0.5s cubic-bezier(0.5, 0, 0.25, 1);transition: transform 0.5s cubic-bezier(0.5, 0, 0.25, 1), -webkit-transform 0.5s cubic-bezier(0.5, 0, 0.25, 1);}';
  document.getElementsByTagName('head')[0].appendChild(navClasses);
  navbar.classList.add('nav-scroll-transition');
  navbar.classList.add('nav-scroll-fixed-' + nav_position);


  // Set Global Variables
  var c=0;
  var currentScrollTop = 0;
  var scrollingClass = (nav_position==='top') ? 'nav-scroll-up' : 'nav-scroll-down';
  var width = Math.max(document.documentElement.clientWidth, window.innerWidth || 0);
  // Get Current Viewport Width
  window.onresize = function(){ width = Math.max(document.documentElement.clientWidth, window.innerWidth || 0);}
  // Call Window OnScroll
  window.onscroll = function() {
    // disable Hide on scroll for mobile
    if(hide_onscroll_mobile==false && width<=mobile_width){
      if(navbar.classList.contains(scrollingClass)){ navbar.classList.remove(scrollingClass); }
    }

    // Hide On Scroll for all screen if (width > mobile_width or mobile_width==true)
    else{
      var a = window.scrollY;
      currentScrollTop = a;
      if (c < currentScrollTop && a > (2*nav_offset)) { 
        navbar.classList.add(scrollingClass); 
      }
      else if (c > currentScrollTop && !(a <= nav_offset)) { 
        navbar.classList.remove(scrollingClass); 
      }
      c = currentScrollTop;
    }
  };
}
  <script src="navonscroll.js"></script>
  <script>
    hide_on_scroll({
      nav_id: 'myscrolling_nav',
      hide_onscroll_mobile : true,
      nav_offset : 10
    });
  </script>

我希望有人可以帮助我直接在 git 上修复它并为这种开源插件做出贡献 或在 Whosebug 中修复一些 也会有帮助。

这显然是一个 CSS 问题,所以这将是一个不完整的答案(这不是我的领域),但在 Firefox 上似乎根本没有触发 window.scroll 事件,由于以下组合:

  • scroll-behavior: smooth;html 元素上,
  • height: 100vh; + overflow: auto;body 元素上。

如果您从 main.css 文件中删除任何这些规则,则 JS 事件将再次触发。

拥有更多 CSS 专业知识的人可能会理解正在发生的事情以及调整这些规则的最合适方法,尽管对我来说这有点像 Firefox 的错误。