自定义滚动条不滚动

Question

我在github.com上复制其他人的工作遇到很大困难

我想做什么

我正在尝试为我的网站构建（复制）自定义滚动条。

什么不起作用

好的，所以我下载了正确的文件夹，创建了index.html并将所有文件链接到该文件夹​​。 因此，当我在浏览器（chrome或firefox）上运行该index.html时，该栏不会上下滑动，而是处于静止位置； 但是内容仍然滚动。 我也无法用光标抓住栏上的文字。 我在Surface Pro 4上的价值为128GB，售价为800美元，但售价为200美元，因此我只能使用触摸屏进行滚动。

我想要的是

我只想要自定义栏，就像链接中的那个一样，但实际上效果很好。 如果您有更好的解决方案，那么请向他们显示！

这里有例子！

这是我的例子！

的HTML

<!doctype html>
<html><head>
    <meta charset="UTF-8">
    <title>SimpleScrollbar</title>
    <link rel="stylesheet" href="simple-scrollbar.css">
    <!--[if IE 9]><script src="https://cdn.jsdelivr.net/classlist/2014.01.31/classList.min.js"></script><![endif]-->
    <script src="simple-scrollbar.min.js"></script>
  </head>
  <body>

  <a href="https://github.com/buzinas/simple-scrollbar"><img style="position: absolute; top: 0; right: 0; border: 0;" src="https://camo.githubusercontent.com/365986a132ccd6a44c23a9169022c0b5c890c387/68747470733a2f2f73332e616d617a6f6e6177732e636f6d2f6769746875622f726962626f6e732f666f726b6d655f72696768745f7265645f6161303030302e706e67" alt="Fork me on GitHub" data-canonical-src="https://s3.amazonaws.com/github/ribbons/forkme_right_red_aa0000.png"></a>
    <div style="height: 300px; width: 200px; display: inline-block;" ss-container="" class="ss-container"><div class="ss-wrapper"><div class="ss-content">
      <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</p>
    </div></div><div class="ss-scroll" style="height: 65.6455%; top: 0%; right: -191px;"></div></div>
    <section style="height: 300px; width: 500px; display: inline-block;" ss-container="" class="ss-container"><div class="ss-wrapper"><div class="ss-content">
      <p>Sed ut perspiciatis unde omnis iste natus error sit voluptatem accusantium doloremque laudantium, totam rem aperiam, eaque ipsa quae ab illo inventore veritatis et quasi architecto beatae vitae dicta sunt explicabo. Nemo enim ipsam voluptatem quia voluptas sit aspernatur aut odit aut fugit, sed quia consequuntur magni dolores eos qui ratione voluptatem sequi nesciunt. Neque porro quisquam est, qui dolorem ipsum quia dolor sit amet, consectetur, adipisci velit, sed quia non numquam eius modi tempora incidunt ut labore et dolore magnam aliquam quaerat voluptatem. Ut enim ad minima veniam, quis nostrum exercitationem ullam corporis suscipit laboriosam, nisi ut aliquid ex ea commodi consequatur? Quis autem vel eum iure reprehenderit qui in ea voluptate velit esse quam nihil molestiae consequatur, vel illum qui dolorem eum fugiat quo voluptas nulla pariatur?</p>
      <p>But I must explain to you how all this mistaken idea of denouncing pleasure and praising pain was born and I will give you a complete account of the system, and expound the actual teachings of the great explorer of the truth, the master-builder of human happiness. No one rejects, dislikes, or avoids pleasure itself, because it is pleasure, but because those who do not know how to pursue pleasure rationally encounter consequences that are extremely painful. Nor again is there anyone who loves or pursues or desires to obtain pain of itself, because it is pain, but because occasionally circumstances occur in which toil and pain can procure him some great pleasure. To take a trivial example, which of us ever undertakes laborious physical exercise, except to obtain some advantage from it? But who has any right to find fault with a man who chooses to enjoy a pleasure that has no annoying consequences, or one who avoids a pain that produces no resultant pleasure?</p>
    </div></div><div class="ss-scroll" style="height: 51.3699%; top: 0%; right: -491px;"></div></section>


</body></html>

的CSS

.ss-wrapper {
  overflow: hidden;
  width: 100%;
  height: 100%;
  position: relative;
  z-index: 1;
  float: left;
}

.ss-content {
  height: 100%;
  width: calc(100% + 18px);
  padding: 0 0 0 0;
  position: relative;
  overflow: auto;
  box-sizing: border-box;
}

.ss-content.rtl {
  width: calc(100% + 18px);
  right: auto;
}

.ss-scroll {
  position: relative;
  background: rgba(0, 0, 0, 0.1);
  width: 9px;
  border-radius: 4px;
  top: 0;
  z-index: 2;
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.25s linear;
}

.ss-hidden {
  display: none;
}

.ss-container:hover .ss-scroll,
.ss-container:active .ss-scroll {
  opacity: 1;
}

**.ss-grabbed {
  -o-user-select: none;
  -ms-user-select: none;
  -moz-user-select: none;
  -webkit-user-select: none;
  user-select: none;
}

Js-1; simple-scrollbar.min.js

    ! function(t, e) {
    "object" == typeof exports ? module.exports = e(window, document) : t.SimpleScrollbar = e(window, document)
}(this, function(t, e) {
    function s(t) {
        Object.prototype.hasOwnProperty.call(t, "data-simple-scrollbar") || Object.defineProperty(t, "data-simple-scrollbar", {
            value: new o(t)
        })
    }

    function i(t, s) {
        function i(t) {
            var e = t.pageY - a;
            a = t.pageY, n(function() {
                s.el.scrollTop += e / s.scrollRatio
            })
        }

        function r() {
            t.classList.remove("ss-grabbed"), e.body.classList.remove("ss-grabbed"), e.removeEventListener("mousemove", i), e.removeEventListener("mouseup", r)
        }
        var a;
        t.addEventListener("mousedown", function(s) {
            return a = s.pageY, t.classList.add("ss-grabbed"), e.body.classList.add("ss-grabbed"), e.addEventListener("mousemove", i), e.addEventListener("mouseup", r), !1
        })
    }

    function r(t) {
        for (this.target = t, this.direction = window.getComputedStyle(this.target).direction, this.bar = '<div class="ss-scroll">', this.wrapper = e.createElement("div"), this.wrapper.setAttribute("class", "ss-wrapper"), this.el = e.createElement("div"), this.el.setAttribute("class", "ss-content"), "rtl" === this.direction && this.el.classList.add("rtl"), this.wrapper.appendChild(this.el); this.target.firstChild;) this.el.appendChild(this.target.firstChild);
        this.target.appendChild(this.wrapper), this.target.insertAdjacentHTML("beforeend", this.bar), this.bar = this.target.lastChild, i(this.bar, this), this.moveBar(), this.el.addEventListener("scroll", this.moveBar.bind(this)), this.el.addEventListener("mouseenter", this.moveBar.bind(this)), this.target.classList.add("ss-container");
        var s = window.getComputedStyle(t);
        "0px" === s.height && "0px" !== s["max-height"] && (t.style.height = s["max-height"])
    }

    function a() {
        for (var t = e.querySelectorAll("*[ss-container]"), i = 0; i < t.length; i++) s(t[i])
    }
    var n = t.requestAnimationFrame || t.setImmediate || function(t) {
        return setTimeout(t, 0)
    };
    r.prototype = {
        moveBar: function(t) {
            var e = this.el.scrollHeight,
                s = this.el.clientHeight,
                i = this;
            this.scrollRatio = s / e;
            var r = "rtl" === i.direction,
                a = r ? i.target.clientWidth - i.bar.clientWidth + 18 : -1 * (i.target.clientWidth - i.bar.clientWidth);
            n(function() {
                i.scrollRatio >= 1 ? i.bar.classList.add("ss-hidden") : (i.bar.classList.remove("ss-hidden"), i.bar.style.cssText = "height:" + Math.max(100 * i.scrollRatio, 10) + "%; top:" + i.el.scrollTop / e * 100 + "%;right:" + a + "px;")
            })
        }
    }, e.addEventListener("DOMContentLoaded", a), r.initEl = s, r.initAll = a;
    var o = r;
    return o
});

js-2; simple-scrollbar.js

;(function(root, factory) {
  if (typeof exports === 'object') {
    module.exports = factory(window, document)
  } else {
    root.SimpleScrollbar = factory(window, document)
  }
})(this, function(w, d) {
  var raf = w.requestAnimationFrame || w.setImmediate || function(c) { return setTimeout(c, 0); };

  function initEl(el) {
    if (Object.prototype.hasOwnProperty.call(el, 'data-simple-scrollbar')) return;
    Object.defineProperty(el, 'data-simple-scrollbar', { value: new SimpleScrollbar(el) });
  }

  // Mouse drag handler
  function dragDealer(el, context) {
    var lastPageY;

    el.addEventListener('mousedown', function(e) {
      lastPageY = e.pageY;
      el.classList.add('ss-grabbed');
      d.body.classList.add('ss-grabbed');

      d.addEventListener('mousemove', drag);
      d.addEventListener('mouseup', stop);

      return false;
    });

    function drag(e) {
      var delta = e.pageY - lastPageY;
      lastPageY = e.pageY;

      raf(function() {
        context.el.scrollTop += delta / context.scrollRatio;
      });
    }

    function stop() {
      el.classList.remove('ss-grabbed');
      d.body.classList.remove('ss-grabbed');
      d.removeEventListener('mousemove', drag);
      d.removeEventListener('mouseup', stop);
    }
  }

  // Constructor
  function ss(el) {
    this.target = el;

    this.direction = w.getComputedStyle(this.target).direction;

    this.bar = '<div class="ss-scroll">';

    this.wrapper = d.createElement('div');
    this.wrapper.setAttribute('class', 'ss-wrapper');

    this.el = d.createElement('div');
    this.el.setAttribute('class', 'ss-content');

    if (this.direction === 'rtl') {
      this.el.classList.add('rtl');
    }

    this.wrapper.appendChild(this.el);

    while (this.target.firstChild) {
      this.el.appendChild(this.target.firstChild);
    }
    this.target.appendChild(this.wrapper);

    this.target.insertAdjacentHTML('beforeend', this.bar);
    this.bar = this.target.lastChild;

    dragDealer(this.bar, this);
    this.moveBar();

    w.addEventListener('resize', this.moveBar.bind(this));
    this.el.addEventListener('scroll', this.moveBar.bind(this));
    this.el.addEventListener('mouseenter', this.moveBar.bind(this));

    this.target.classList.add('ss-container');

    var css = w.getComputedStyle(el);
    if (css['height'] === '0px' && css['max-height'] !== '0px') {
        el.style.height = css['max-height'];
    }
  }

  ss.prototype = {
    moveBar: function(e) {
      var totalHeight = this.el.scrollHeight,
          ownHeight = this.el.clientHeight,
          _this = this;

      this.scrollRatio = ownHeight / totalHeight;

      var isRtl = _this.direction === 'rtl';
      var right = isRtl ?
        (_this.target.clientWidth - _this.bar.clientWidth + 18) :
        (_this.target.clientWidth - _this.bar.clientWidth) * -1;

      raf(function() {
        // Hide scrollbar if no scrolling is possible
        if(_this.scrollRatio >= 1) {
          _this.bar.classList.add('ss-hidden')
        } else {
          _this.bar.classList.remove('ss-hidden')
          _this.bar.style.cssText = 'height:' + Math.max(_this.scrollRatio * 100, 10) + '%; top:' + (_this.el.scrollTop / totalHeight ) * 100 + '%;right:' + right + 'px;';
        }
      });
    }
  }

  function initAll() {
    var nodes = d.querySelectorAll('*[ss-container]');

    for (var i = 0; i < nodes.length; i++) {
      initEl(nodes[i]);
    }
  }

  d.addEventListener('DOMContentLoaded', initAll);
  ss.initEl = initEl;
  ss.initAll = initAll;

  var SimpleScrollbar = ss;
  return SimpleScrollbar;
});

旁注

如果有人有更好的解决方案，请告诉我。 谢谢！

Answer 1

您所做的只是复制相关站点的整个HTML输出。

如果要使用给定的库，则必须按照自述部分中的说明进行操作：

https://github.com/buzinas/simple-scrollbar#manual-binding

要以这种方式使用它，您需要将脚本添加到代码库中。 那就是关于两个javascript文件的问题所在：有两个给定的javascript文件，一个以.min.js而一个没有.min.js. 。 min表示minified ，因此不会占用太多空间。

而且，请不要在Instagram上分享视频。 非常不专业。

Answer 2

我认为您应该从这种情况下的基础知识入手，然后再为自己的网站复制代码。

很棒的教程，可以在这里找到漂亮的例子： https : //www.w3schools.com/jS/default.asp