why-cant-we-deploy-today/plugin/zoom/zoom.js

!(function (e, t) {
  "object" == typeof exports && "undefined" != typeof module
    ? (module.exports = t())
    : "function" == typeof define && define.amd
    ? define(t)
    : ((e =
        "undefined" != typeof globalThis ? globalThis : e || self).RevealZoom =
        t());
})(this, function () {
  "use strict";
  /*!
   * reveal.js Zoom plugin
   */ const e = {
    id: "zoom",
    init: function (e) {
      e.getRevealElement().addEventListener("mousedown", function (o) {
        var n = /Linux/.test(window.navigator.platform) ? "ctrl" : "alt",
          i = (e.getConfig().zoomKey ? e.getConfig().zoomKey : n) + "Key",
          d = e.getConfig().zoomLevel ? e.getConfig().zoomLevel : 2;
        o[i] &&
          !e.isOverview() &&
          (o.preventDefault(),
          t.to({ x: o.clientX, y: o.clientY, scale: d, pan: !1 }));
      });
    },
    destroy: () => {
      t.reset();
    },
  };
  var t = (function () {
    var e = 1,
      o = 0,
      n = 0,
      i = -1,
      d = -1,
      l = "transform" in document.body.style;
    function s(t, o) {
      var n = r();
      if (
        ((t.width = t.width || 1),
        (t.height = t.height || 1),
        (t.x -= (window.innerWidth - t.width * o) / 2),
        (t.y -= (window.innerHeight - t.height * o) / 2),
        l)
      )
        if (1 === o) document.body.style.transform = "";
        else {
          var i = n.x + "px " + n.y + "px",
            d = "translate(" + -t.x + "px," + -t.y + "px) scale(" + o + ")";
          (document.body.style.transformOrigin = i),
            (document.body.style.transform = d);
        }
      else
        1 === o
          ? ((document.body.style.position = ""),
            (document.body.style.left = ""),
            (document.body.style.top = ""),
            (document.body.style.width = ""),
            (document.body.style.height = ""),
            (document.body.style.zoom = ""))
          : ((document.body.style.position = "relative"),
            (document.body.style.left = -(n.x + t.x) / o + "px"),
            (document.body.style.top = -(n.y + t.y) / o + "px"),
            (document.body.style.width = 100 * o + "%"),
            (document.body.style.height = 100 * o + "%"),
            (document.body.style.zoom = o));
      (e = o),
        document.documentElement.classList &&
          (1 !== e
            ? document.documentElement.classList.add("zoomed")
            : document.documentElement.classList.remove("zoomed"));
    }
    function c() {
      var t = 0.12 * window.innerWidth,
        i = 0.12 * window.innerHeight,
        d = r();
      n < i
        ? window.scroll(d.x, d.y - (14 / e) * (1 - n / i))
        : n > window.innerHeight - i &&
          window.scroll(
            d.x,
            d.y + (1 - (window.innerHeight - n) / i) * (14 / e)
          ),
        o < t
          ? window.scroll(d.x - (14 / e) * (1 - o / t), d.y)
          : o > window.innerWidth - t &&
            window.scroll(
              d.x + (1 - (window.innerWidth - o) / t) * (14 / e),
              d.y
            );
    }
    function r() {
      return {
        x: void 0 !== window.scrollX ? window.scrollX : window.pageXOffset,
        y: void 0 !== window.scrollY ? window.scrollY : window.pageYOffset,
      };
    }
    return (
      l && (document.body.style.transition = "transform 0.8s ease"),
      document.addEventListener("keyup", function (o) {
        1 !== e && 27 === o.keyCode && t.out();
      }),
      document.addEventListener("mousemove", function (t) {
        1 !== e && ((o = t.clientX), (n = t.clientY));
      }),
      {
        to: function (o) {
          if (1 !== e) t.out();
          else {
            if (((o.x = o.x || 0), (o.y = o.y || 0), o.element)) {
              var n = o.element.getBoundingClientRect();
              (o.x = n.left - 20),
                (o.y = n.top - 20),
                (o.width = n.width + 40),
                (o.height = n.height + 40);
            }
            void 0 !== o.width &&
              void 0 !== o.height &&
              (o.scale = Math.max(
                Math.min(
                  window.innerWidth / o.width,
                  window.innerHeight / o.height
                ),
                1
              )),
              o.scale > 1 &&
                ((o.x *= o.scale),
                (o.y *= o.scale),
                s(o, o.scale),
                !1 !== o.pan &&
                  (i = setTimeout(function () {
                    d = setInterval(c, 1e3 / 60);
                  }, 800)));
          }
        },
        out: function () {
          clearTimeout(i), clearInterval(d), s({ x: 0, y: 0 }, 1), (e = 1);
        },
        magnify: function (e) {
          this.to(e);
        },
        reset: function () {
          this.out();
        },
        zoomLevel: function () {
          return e;
        },
      }
    );
  })();
  /*!
   * zoom.js 0.3 (modified for use with reveal.js)
   * http://lab.hakim.se/zoom-js
   * MIT licensed
   *
   * Copyright (C) 2011-2014 Hakim El Hattab, http://hakim.se
   */ return () => e;
});