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给网站顶部加一个进度条(适用于Pjax)

2023年09月21日 702阅读 0评论 6点赞

很多网站使用了Pjax无刷新加载 顶部没有页面加载进度,为了美观丶流畅感觉可以加进去,分享写个教程给大家

首先创建一个js文件引入(把以下js代码放进去)
注意:引入到jquery.js的下面

!(function (n, e) {
  "function" == typeof define && define.amd
    ? define(e)
    : "object" == typeof exports
    ? (module.exports = e())
    : (n.NProgress = e());
})(this, function () {
  function n(n, e, t) {
    return e > n ? e : n > t ? t : n;
  }
  function e(n) {
    return 100 * (-1 + n);
  }
  function t(n, t, r) {
    var i;
    return (
      (i =
        "translate3d" === c.positionUsing
          ? { transform: "translate3d(" + e(n) + "%,0,0)" }
          : "translate" === c.positionUsing
          ? { transform: "translate(" + e(n) + "%,0)" }
          : { "margin-left": e(n) + "%" }),
      (i.transition = "all " + t + "ms " + r),
      i
    );
  }
  function r(n, e) {
    var t = "string" == typeof n ? n : o(n);
    return t.indexOf(" " + e + " ") >= 0;
  }
  function i(n, e) {
    var t = o(n),
      i = t + e;
    r(t, e) || (n.className = i.substring(1));
  }
  function s(n, e) {
    var t,
      i = o(n);
    r(n, e) &&
      ((t = i.replace(" " + e + " ", " ")),
      (n.className = t.substring(1, t.length - 1)));
  }
  function o(n) {
    return (" " + (n.className || "") + " ").replace(/\s+/gi, " ");
  }
  function a(n) {
    n && n.parentNode && n.parentNode.removeChild(n);
  }
  var u = {};
  u.version = "0.2.0";
  var c = (u.settings = {
    minimum: 0.08,
    easing: "ease",
    positionUsing: "",
    speed: 200,
    trickle: !0,
    trickleRate: 0.02,
    trickleSpeed: 800,
    showSpinner: !0,
    barSelector: '[role="bar"]',
    parent: "body",
    template:
      '<div class="bar" role="bar"><div class="peg"></div></div></div>'
  });
  (u.configure = function (n) {
    var e, t;
    for (e in n) (t = n[e]), void 0 !== t && n.hasOwnProperty(e) && (c[e] = t);
    return this;
  }),
    (u.status = null),
    (u.set = function (e) {
      var r = u.isStarted();
      (e = n(e, c.minimum, 1)), (u.status = 1 === e ? null : e);
      var i = u.render(!r),
        s = i.querySelector(c.barSelector),
        o = c.speed,
        a = c.easing;
      return (
        i.offsetWidth,
        l(function (n) {
          "" === c.positionUsing && (c.positionUsing = u.getPositioningCSS()),
            f(s, t(e, o, a)),
            1 === e
              ? (f(i, { transition: "none", opacity: 1 }),
                i.offsetWidth,
                setTimeout(function () {
                  f(i, { transition: "all " + o + "ms linear", opacity: 0 }),
                    setTimeout(function () {
                      u.remove(), n();
                    }, o);
                }, o))
              : setTimeout(n, o);
        }),
        this
      );
    }),
    (u.isStarted = function () {
      return "number" == typeof u.status;
    }),
    (u.start = function () {
      u.status || u.set(0);
      var n = function () {
        setTimeout(function () {
          u.status && (u.trickle(), n());
        }, c.trickleSpeed);
      };
      return c.trickle && n(), this;
    }),
    (u.done = function (n) {
      return n || u.status ? u.inc(0.3 + 0.5 * Math.random()).set(1) : this;
    }),
    (u.inc = function (e) {
      var t = u.status;
      return t
        ? ("number" != typeof e &&
            (e = (1 - t) * n(Math.random() * t, 0.1, 0.95)),
          (t = n(t + e, 0, 0.994)),
          u.set(t))
        : u.start();
    }),
    (u.trickle = function () {
      return u.inc(Math.random() * c.trickleRate);
    }),
    (function () {
      var n = 0,
        e = 0;
      u.promise = function (t) {
        return t && "resolved" !== t.state()
          ? (0 === e && u.start(),
            n++,
            e++,
            t.always(function () {
              e--, 0 === e ? ((n = 0), u.done()) : u.set((n - e) / n);
            }),
            this)
          : this;
      };
    })(),
    (u.render = function (n) {
      if (u.isRendered()) return document.getElementById("nprogress");
      i(document.documentElement, "Progress-bar");
      var t = document.createElement("div");
      (t.id = "nprogress"), (t.innerHTML = c.template);
      var r,
        s = t.querySelector(c.barSelector),
        o = n ? "-100" : e(u.status || 0),
        l = document.querySelector(c.parent);
      return (
        f(s, {
          transition: "all 0 linear",
          transform: "translate3d(" + o + "%,0,0)"
        }),
        c.showSpinner || ((r = t.querySelector(c.spinnerSelector)), r && a(r)),
        l != document.body && i(l, "nprogress-custom-parent"),
        l.appendChild(t),
        t
      );
    }),
    (u.remove = function () {
      s(document.documentElement, "Progress-bar"),
        s(document.querySelector(c.parent), "nprogress-custom-parent");
      var n = document.getElementById("nprogress");
      n && a(n);
    }),
    (u.isRendered = function () {
      return !!document.getElementById("nprogress");
    }),
    (u.getPositioningCSS = function () {
      var n = document.body.style,
        e =
          "WebkitTransform" in n
            ? "Webkit"
            : "MozTransform" in n
            ? "Moz"
            : "msTransform" in n
            ? "ms"
            : "OTransform" in n
            ? "O"
            : "";
      return e + "Perspective" in n
        ? "translate3d"
        : e + "Transform" in n
        ? "translate"
        : "margin";
    });
  var l = (function () {
      function n() {
        var t = e.shift();
        t && t(n);
      }
      var e = [];
      return function (t) {
        e.push(t), 1 == e.length && n();
      };
    })(),
    f = (function () {
      function n(n) {
        return n
          .replace(/^-ms-/, "ms-")
          .replace(/-([\da-z])/gi, function (n, e) {
            return e.toUpperCase();
          });
      }
      function e(n) {
        var e = document.body.style;
        if (n in e) return n;
        for (
          var t, r = i.length, s = n.charAt(0).toUpperCase() + n.slice(1);
          r--;

        )
          if (((t = i[r] + s), t in e)) return t;
        return n;
      }
      function t(t) {
        return (t = n(t)), s[t] || (s[t] = e(t));
      }
      function r(n, e, r) {
        (e = t(e)), (n.style[e] = r);
      }
      var i = ["Webkit", "O", "Moz", "ms"],
        s = {};
      return function (n, e) {
        var t,
          i,
          s = arguments;
        if (2 == s.length)
          for (t in e)
            (i = e[t]), void 0 !== i && e.hasOwnProperty(t) && r(n, t, i);
        else r(n, s[1], s[2]);
      };
    })();
  return u;
});

在创建一个css文件 引入(把以下css代码放进去)

#nprogress{pointer-events:none}
#nprogress .bar{background:#73aaff;position:fixed;z-index:99999;top:0;left:0;width:100%;height:2px;}
#nprogress .peg{display:block;position:absolute;right:0;width:100px;height:100%;opacity:1;transform:rotate(3deg) translate(0,-4px);}

最后加入pjax 重载函数

$(document).on('pjax:send', function() {
NProgress.start()
});

$(document).on("pjax:complete", function () {
NProgress.done();
});
6
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