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Prevent page scrolling when scrolling a DIV while resolving [Violation] warning in console

由 左心房为你撑大大i 提交于 2020-01-03 08:35:24

问题


At first this seems to be duplicate question answered here but there is more that need to be figured out.

How can I resolve below given [Violation] warning in google chrome console?

[Violation] Added non-passive event listener to a scroll-blocking 'mousewheel' event. Consider marking event handler as 'passive' to make the page more responsive.

Here is the code snippet that works but with the above mentioned [Violation] warning.

$.fn.isolatedScroll = function() {
  this.on('mousewheel DOMMouseScroll', function (e) {
    let delta = e.wheelDelta || (e.originalEvent && e.originalEvent.wheelDelta) || -e.detail,
      bottomOverflow = this.scrollTop + $(this).outerHeight() - this.scrollHeight >= 0,
      topOverflow = this.scrollTop <= 0;

    if ((delta < 0 && bottomOverflow) || (delta > 0 && topOverflow)) {
      e.preventDefault();
    }
  });
  return this;
};

$('.js-isolated-scroll').isolatedScroll()

// Nothing to check here as it's just repeating <p> tags
function multiplyNode(node, count, deep) {
  for (var i = 0, copy; i < count - 1; i++) {
    copy = node.cloneNode(deep);
    node.parentNode.insertBefore(copy, node);
  }
}

multiplyNode(document.querySelector('.p-in-fixed'), 20, true);
multiplyNode(document.querySelector('.p-in-body'), 20, true);
body{
  position: relative;
  background-color: #ccc !important;
  padding: 20px 20px 20px 50%;
}
.fixed {
  top: 20px;
  left: 20px;
  right: 20px;
  bottom: 20px;
  padding: 20px;
  overflow: auto;
  position: fixed;
  border: 1px solid #333;
  width: calc(50% - 40px);
  background-color: #f8f8f8;
}
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<div class="js-isolated-scroll fixed">
  <p class="p-in-fixed">Lorem ipsum dolor sit amet, consectetur adipisicing elit. Ab accusamus aliquam, beatae blanditiis, cum dicta earum eligendi esse eum inventore iusto molestiae necessitatibus nesciunt praesentium quod ratione, similique sit voluptates.</p>
</div>

<p class="p-in-body">Lorem ipsum dolor sit amet, consectetur adipisicing elit. Ab accusamus aliquam, beatae blanditiis, cum dicta earum eligendi esse eum inventore iusto molestiae necessitatibus nesciunt praesentium quod ratione, similique sit voluptates.</p>

Here is how I tried to fix it using Modernizr's passiveeventlisteners with this code Modernizr.passiveeventlisteners ? {passive:true} : false while following an answer given here. But I am getting this error message in console:

Unable to preventDefault inside passive event listener invocation.

It's clear for me that I cannot using e.preventDefault() while using {passive:true} and that make sense, I just want know how can I Prevent page scrolling when scrolling a DIV while resolving [Violation] warning in console.

Here is the code snippet that doesn't work and produces above mentioned error in console. 

document.getElementById('fixed-content').addEventListener('wheel', avoidBodyScroll, Modernizr.passiveeventlisteners ? {passive:true} : false);
document.getElementById('fixed-content').addEventListener('mousewheel', avoidBodyScroll, Modernizr.passiveeventlisteners ? {passive:true} : false);
document.getElementById('fixed-content').addEventListener('DOMMouseScroll', avoidBodyScroll, Modernizr.passiveeventlisteners ? {passive:true} : false);

function avoidBodyScroll(e) {
  let delta = e.wheelDelta || (e.originalEvent && e.originalEvent.wheelDelta) || -e.detail,
    bottomOverflow = this.scrollTop + $(this).outerHeight() - this.scrollHeight >= 0,
    topOverflow = this.scrollTop <= 0;

  if ((delta < 0 && bottomOverflow) || (delta > 0 && topOverflow)) {
    e.preventDefault();
  }
}

// Nothing to check here as it's just repeating <p> tags
function multiplyNode(node, count, deep) {
  for (var i = 0, copy; i < count - 1; i++) {
    copy = node.cloneNode(deep);
    node.parentNode.insertBefore(copy, node);
  }
}

multiplyNode(document.querySelector('.p-in-fixed'), 20, true);
multiplyNode(document.querySelector('.p-in-body'), 20, true);
body{
  position: relative;
  background-color: #ccc !important;
  padding: 20px 20px 20px 50%;
}
.fixed {
  top: 20px;
  left: 20px;
  right: 20px;
  bottom: 20px;
  padding: 20px;
  overflow: auto;
  position: fixed;
  border: 1px solid #333;
  width: calc(50% - 40px);
  background-color: #f8f8f8;
}
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<script>
  /*! modernizr 3.5.0 (Custom Build) | MIT *
  * https://modernizr.com/download/?-passiveeventlisteners-setclasses !*/
  !function(e,n,s){function o(e,n){return typeof e===n}function a(){var e,n,s,a,t,f,l;for(var c in r)if(r.hasOwnProperty(c)){if(e=[],n=r[c],n.name&&(e.push(n.name.toLowerCase()),n.options&&n.options.aliases&&n.options.aliases.length))for(s=0;s<n.options.aliases.length;s++)e.push(n.options.aliases[s].toLowerCase());for(a=o(n.fn,"function")?n.fn():n.fn,t=0;t<e.length;t++)f=e[t],l=f.split("."),1===l.length?Modernizr[l[0]]=a:(!Modernizr[l[0]]||Modernizr[l[0]]instanceof Boolean||(Modernizr[l[0]]=new Boolean(Modernizr[l[0]])),Modernizr[l[0]][l[1]]=a),i.push((a?"":"no-")+l.join("-"))}}function t(e){var n=l.className,s=Modernizr._config.classPrefix||"";if(c&&(n=n.baseVal),Modernizr._config.enableJSClass){var o=new RegExp("(^|\\s)"+s+"no-js(\\s|$)");n=n.replace(o,"$1"+s+"js$2")}Modernizr._config.enableClasses&&(n+=" "+s+e.join(" "+s),c?l.className.baseVal=n:l.className=n)}var i=[],r=[],f={_version:"3.5.0",_config:{classPrefix:"",enableClasses:!0,enableJSClass:!0,usePrefixes:!0},_q:[],on:function(e,n){var s=this;setTimeout(function(){n(s[e])},0)},addTest:function(e,n,s){r.push({name:e,fn:n,options:s})},addAsyncTest:function(e){r.push({name:null,fn:e})}},Modernizr=function(){};Modernizr.prototype=f,Modernizr=new Modernizr,Modernizr.addTest("passiveeventlisteners",function(){var n=!1;try{var s=Object.defineProperty({},"passive",{get:function(){n=!0}});e.addEventListener("test",null,s)}catch(o){}return n});var l=n.documentElement,c="svg"===l.nodeName.toLowerCase();a(),t(i),delete f.addTest,delete f.addAsyncTest;for(var u=0;u<Modernizr._q.length;u++)Modernizr._q[u]();e.Modernizr=Modernizr}(window,document);
</script>

<div id="fixed-content" class="js-isolated-scroll fixed">
  <p class="p-in-fixed">Lorem ipsum dolor sit amet, consectetur adipisicing elit. Ab accusamus aliquam, beatae blanditiis, cum dicta earum eligendi esse eum inventore iusto molestiae necessitatibus nesciunt praesentium quod ratione, similique sit voluptates.</p>
</div>

<p class="p-in-body">Lorem ipsum dolor sit amet, consectetur adipisicing elit. Ab accusamus aliquam, beatae blanditiis, cum dicta earum eligendi esse eum inventore iusto molestiae necessitatibus nesciunt praesentium quod ratione, similique sit voluptates.</p>

Or, Am I making things unnecessarily complicated because as it can be achieved just by using CSS?


回答1:


Update1:

This is a pure css option for webkit browsers using the ::-webkit-scrollbar property.

body{
  position: relative;
  background-color: #ccc !important;
  padding: 20px 20px 20px 50%;
}
.fixed {
  top: 20px;
  left: 20px;
  right: 20px;
  bottom: 20px;
  padding: 20px;
  overflow: auto;
  position: fixed;
  border: 1px solid #333;
  width: calc(50% - 70px);
  background-color: #f8f8f8;
}

.fixed::-webkit-scrollbar {
    width: 0px;
    background: transparent;
}
<div class="js-isolated-scroll fixed">
  <p class="p-in-fixed">Lorem ipsum dolor sit amet, consectetur adipisicing elit. Ab accusamus aliquam, beatae blanditiis, cum dicta earum eligendi esse eum inventore iusto molestiae necessitatibus nesciunt praesentium quod ratione, similique sit voluptates. Animi nisi molestiae expedita tenetur dolore, aliquam, quasi, ducimus neque exercitationem tempore maxime rerum! Alias tempora modi laborum animi voluptate minus quae!Lorem ipsum dolor sit amet, consectetur adipisicing elit. Ab accusamus aliquam, beatae blanditiis, cum dicta earum eligendi esse eum inventore iusto molestiae necessitatibus nesciunt praesentium quod ratione, similique sit voluptates. Lorem ipsum dolor, sit amet consectetur adipisicing elit. Animi nisi molestiae expedita tenetur dolore, aliquam, quasi, ducimus neque exercitationem tempore maxime rerum! Alias tempora modi laborum animi voluptate minus quae!Lorem ipsum dolor sit amet, consectetur adipisicing elit. Ab accusamus aliquam, beatae blanditiis, cum dicta earum eligendi esse eum inventore iusto molestiae necessitatibus nesciunt praesentium quod ratione, similique sit voluptates. Lorem ipsum dolor, sit amet consectetur adipisicing elit. Animi nisi molestiae expedita tenetur dolore, aliquam, quasi, ducimus neque exercitationem tempore maxime rerum! Alias tempora modi laborum animi voluptate minus quae!Lorem ipsum dolor sit amet, consectetur adipisicing elit. Animi nisi molestiae expedita tenetur dolore, aliquam, quasi, ducimus neque exercitationem tempore maxime rerum! Alias tempora modi laborum animi voluptate minus quae!Lorem ipsum dolor sit amet, consectetur adipisicing elit. Ab accusamus aliquam, beatae blanditiis, cum dicta earum eligendi esse eum inventore iusto molestiae necessitatibus nesciunt praesentium quod ratione, similique sit voluptates. Lorem ipsum dolor, sit amet consectetur adipisicing elit. Animi nisi molestiae expedita tenetur dolore, aliquam, quasi, ducimus neque exercitationem tempore maxime rerum! Alias tempora modi laborum animi voluptate minus quae!Lorem ipsum dolor sit amet, consectetur adipisicing elit. Ab accusamus aliquam, beatae blanditiis, cum dicta earum eligendi esse eum inventore iusto molestiae necessitatibus nesciunt praesentium quod ratione, similique sit voluptates. Lorem ipsum dolor, sit amet consectetur adipisicing elit. Animi nisi molestiae expedita tenetur dolore, aliquam, quasi, ducimus neque exercitationem tempore maxime rerum! Alias tempora modi laborum animi voluptate minus quae!Lorem ipsum dolor sit amet, consectetur adipisicing elit.</p>
</div>

<p class="p-in-body">Lorem ipsum dolor sit amet, consectetur adipisicing elit. Ab accusamus aliquam, beatae blanditiis, cum dicta earum eligendi esse eum inventore iusto molestiae necessitatibus nesciunt praesentium quod ratione, similique sit voluptates. Animi nisi molestiae expedita tenetur dolore, aliquam, quasi, ducimus neque exercitationem tempore maxime rerum! Alias tempora modi laborum animi voluptate minus quae!Lorem ipsum dolor sit amet, consectetur adipisicing elit. Ab accusamus aliquam, beatae blanditiis, cum dicta earum eligendi esse eum inventore iusto molestiae necessitatibus nesciunt praesentium quod ratione, similique sit voluptates. Lorem ipsum dolor, sit amet consectetur adipisicing elit. Animi nisi molestiae expedita tenetur dolore, aliquam, quasi, ducimus neque exercitationem tempore maxime rerum! Alias tempora modi laborum animi voluptate minus quae!Lorem ipsum dolor sit amet, consectetur adipisicing elit. Ab accusamus aliquam, beatae blanditiis, cum dicta earum eligendi esse eum inventore iusto molestiae necessitatibus nesciunt praesentium quod ratione, similique sit voluptates. Lorem ipsum dolor, sit amet consectetur adipisicing elit. Animi nisi molestiae expedita tenetur dolore, aliquam, quasi, ducimus neque exercitationem tempore maxime rerum! Alias tempora modi laborum animi voluptate minus quae!Lorem ipsum dolor sit amet, consectetur adipisicing elit.</p>

Would something like this work? When you hover over the scrolling div, toggle a class on the body or other parent element that has an overflow of hidden, thus preventing parent scroll using CSS.

$('.js-isolated-scroll').bind('mouseenter mouseleave touchstart touchend', 
function() {
    $("body").toggleClass("no-scroll"); 
});
body{
  position: relative;
  background-color: #ccc !important;
  padding: 20px 20px 20px 50%;
}
.fixed {
  top: 20px;
  left: 20px;
  right: 20px;
  bottom: 20px;
  padding: 20px;
  overflow: auto;
  position: fixed;
  border: 1px solid #333;
  width: calc(50% - 40px);
  background-color: #f8f8f8;
}

.no-scroll {
    overflow: hidden;
}
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="fixed-content" class="js-isolated-scroll fixed">
  <p class="p-in-fixed">Lorem ipsum dolor sit amet, consectetur adipisicing elit. Ab accusamus aliquam, beatae blanditiis, cum dicta earum eligendi esse eum inventore iusto molestiae necessitatibus nesciunt praesentium quod ratione, similique sit voluptates. Lorem ipsum dolor, sit amet consectetur adipisicing elit. Animi nisi molestiae expedita tenetur dolore, aliquam, quasi, ducimus neque exercitationem tempore maxime rerum! Alias tempora modi laborum animi voluptate minus quae!Lorem ipsum dolor sit amet, consectetur adipisicing elit. Ab accusamus aliquam, beatae blanditiis, cum dicta earum eligendi esse eum inventore iusto molestiae necessitatibus nesciunt praesentium quod ratione, similique sit voluptates. Lorem ipsum dolor, sit amet consectetur adipisicing elit. Animi nisi molestiae expedita tenetur dolore, aliquam, quasi, ducimus neque exercitationem tempore maxime rerum! Alias tempora modi laborum animi voluptate minus quae!Lorem ipsum dolor sit amet, consectetur adipisicing elit. Ab accusamus aliquam, beatae blanditiis, cum dicta earum eligendi esse eum inventore iusto molestiae necessitatibus nesciunt praesentium quod ratione, similique sit voluptates. Lorem ipsum dolor, sit amet consectetur adipisicing elit. Animi nisi molestiae expedita tenetur dolore, aliquam, quasi, ducimus neque exercitationem tempore maxime rerum! Alias tempora modi laborum animi voluptate minus quae!Lorem ipsum dolor sit amet, consectetur adipisicing elit. Ab accusamus aliquam, beatae blanditiis, cum dicta earum eligendi esse eum inventore iusto molestiae necessitatibus nesciunt praesentium quod ratione, similique sit voluptates. Lorem ipsum dolor, sit amet consectetur adipisicing elit. Animi nisi molestiae expedita tenetur dolore, aliquam, quasi, ducimus neque exercitationem tempore maxime rerum! Alias tempora modi laborum animi voluptate minus quae!Lorem ipsum dolor sit amet, consectetur adipisicing elit. Ab accusamus aliquam, beatae blanditiis, cum dicta earum eligendi esse eum inventore iusto molestiae necessitatibus nesciunt praesentium quod ratione, similique sit voluptates. Lorem ipsum dolor, sit amet consectetur adipisicing elit. Animi nisi molestiae expedita tenetur dolore, aliquam, quasi, ducimus neque exercitationem tempore maxime rerum! Alias tempora modi laborum animi voluptate minus quae!Lorem ipsum dolor sit amet, consectetur adipisicing elit. Ab accusamus aliquam, beatae blanditiis, cum dicta earum eligendi esse eum inventore iusto molestiae necessitatibus nesciunt praesentium quod ratione, similique sit voluptates. Lorem ipsum dolor, sit amet consectetur adipisicing elit. Animi nisi molestiae expedita tenetur dolore, aliquam, quasi, ducimus neque exercitationem tempore maxime rerum! Alias tempora modi laborum animi voluptate minus quae!Lorem ipsum dolor sit amet, consectetur adipisicing elit. Ab accusamus aliquam, beatae blanditiis, cum dicta earum eligendi esse eum inventore iusto molestiae necessitatibus nesciunt praesentium quod ratione, similique sit voluptates. Lorem ipsum dolor, sit amet consectetur adipisicing elit. Animi nisi molestiae expedita tenetur dolore, aliquam, quasi, ducimus neque exercitationem tempore maxime rerum! Alias tempora modi laborum animi voluptate minus quae!Lorem ipsum dolor sit amet, consectetur adipisicing elit. Ab accusamus aliquam, beatae blanditiis, cum dicta earum eligendi esse eum inventore iusto molestiae necessitatibus nesciunt praesentium quod ratione, similique sit voluptates. Lorem ipsum dolor, sit amet consectetur adipisicing elit. Animi nisi molestiae expedita tenetur dolore, aliquam, quasi, ducimus neque exercitationem tempore maxime rerum! Alias tempora modi laborum animi voluptate minus quae!Lorem ipsum dolor sit amet, consectetur adipisicing elit. Ab accusamus aliquam, beatae blanditiis, cum dicta earum eligendi esse eum inventore iusto molestiae necessitatibus nesciunt praesentium quod ratione, similique sit voluptates. Lorem ipsum dolor, sit amet consectetur adipisicing elit. Animi nisi molestiae expedita tenetur dolore, aliquam, quasi, ducimus neque exercitationem tempore maxime rerum! Alias tempora modi laborum animi voluptate minus quae!Lorem ipsum dolor sit amet, consectetur adipisicing elit. Ab accusamus aliquam, beatae blanditiis, cum dicta earum eligendi esse eum inventore iusto molestiae necessitatibus nesciunt praesentium quod ratione, similique sit voluptates. Lorem ipsum dolor, sit amet consectetur adipisicing elit. Animi nisi molestiae expedita tenetur dolore, aliquam, quasi, ducimus neque exercitationem tempore maxime rerum! Alias tempora modi laborum animi voluptate minus quae!Lorem ipsum dolor sit amet, consectetur adipisicing elit. Ab accusamus aliquam, beatae blanditiis, cum dicta earum eligendi esse eum inventore iusto molestiae necessitatibus nesciunt praesentium quod ratione, similique sit voluptates. Lorem ipsum dolor, sit amet consectetur adipisicing elit. Animi nisi molestiae expedita tenetur dolore, aliquam, quasi, ducimus neque exercitationem tempore maxime rerum! Alias tempora modi laborum animi voluptate minus quae!Lorem ipsum dolor sit amet, consectetur adipisicing elit. Ab accusamus aliquam, beatae blanditiis, cum dicta earum eligendi esse eum inventore iusto molestiae necessitatibus nesciunt praesentium quod ratione, similique sit voluptates. Lorem ipsum dolor, sit amet consectetur adipisicing elit. Animi nisi molestiae expedita tenetur dolore, aliquam, quasi, ducimus neque exercitationem tempore maxime rerum! Alias tempora modi laborum animi voluptate minus quae!Lorem ipsum dolor sit amet, consectetur adipisicing elit. Ab accusamus aliquam, beatae blanditiis, cum dicta earum eligendi esse eum inventore iusto molestiae necessitatibus nesciunt praesentium quod ratione, similique sit voluptates. Lorem ipsum dolor, sit amet consectetur adipisicing elit. Animi nisi molestiae expedita tenetur dolore, aliquam, quasi, ducimus neque exercitationem tempore maxime rerum! Alias tempora modi laborum animi voluptate minus quae!Lorem ipsum dolor sit amet, consectetur adipisicing elit. Ab accusamus aliquam, beatae blanditiis, cum dicta earum eligendi esse eum inventore iusto molestiae necessitatibus nesciunt praesentium quod ratione, similique sit voluptates. Lorem ipsum dolor, sit amet consectetur adipisicing elit. Animi nisi molestiae expedita tenetur dolore, aliquam, quasi, ducimus neque exercitationem tempore maxime rerum! Alias tempora modi laborum animi voluptate minus quae!Lorem ipsum dolor sit amet, consectetur adipisicing elit.</p>



回答2:


Take a look at this fiddle. The key trick in my answer is separating the two scrolls. In your example, the body had the scroll so the fixed div had a container with scroll. By making a container element for the p-in-bodies which has the scroll, and placing the fixed-content outside of it, you can get around this.

HTML (added the container wrapper):

<div id="container">
  <p class="p-in-body">...</p>
</div>

<div id="fixed-content" class="fixed">
    <p class="p-in-fixed">...</p>
</div>

CSS (changed html, body & added #container):

html, body{
  padding: 0;
  width: 100%;
  height: 100%;
}
.fixed {
  top: 20px;
  left: 20px;
  right: 20px;
  bottom: 20px;
  padding: 20px;
  overflow: auto;
  position: absolute;
  border: 1px solid #333;
  width: calc(50% - 40px);
  background-color: #f8f8f8;
}


#container{
  position: relative;
  background-color: #ccc !important;
  padding: 20px 20px 20px 50%;
  width: 100%;
  height: 100%;
  box-sizing: border-box;
  overflow-y: auto;
}


来源：https://stackoverflow.com/questions/45387213/prevent-page-scrolling-when-scrolling-a-div-while-resolving-violation-warning

标签
javascript
jquery
css3
modernizr
passive-event-listeners
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