hugo-theme-relearn/js/github-buttons.js

/*!
 * github-buttons v2.27.0
    McShelby/hugo-theme-relearn#155
      - make render() available on window.githubButtons
 * (c) 2023 なつき
 * @license BSD-2-Clause
 */
(function () {
  'use strict';

  var document = window.document;

  var location = document.location;

  var Math = window.Math;

  var HTMLElement = window.HTMLElement;

  var XMLHttpRequest = window.XMLHttpRequest;

  var buttonClass = 'github-button';

  var iframeURL = 'https://' + (/* istanbul ignore next */ 'buttons.github.io') + '/buttons.html';

  var domain = 'github.com';

  var apiBaseURL = 'https://api.' + domain;

  var useXHR = XMLHttpRequest && 'prototype' in XMLHttpRequest && 'withCredentials' in XMLHttpRequest.prototype;

  var useShadowDOM = useXHR && HTMLElement && 'attachShadow' in HTMLElement.prototype && !('prototype' in HTMLElement.prototype.attachShadow);

  var forEach = function (obj, func) {
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      func(obj[i]);
    }
  };

  var createElementInDocument = function (document) {
    return function (tag, props, children) {
      var el = document.createElement(tag);
      if (props != null) {
        for (var prop in props) {
          var val = props[prop];
          if (val != null) {
            if (el[prop] != null) {
              el[prop] = val;
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              el.setAttribute(prop, val);
            }
          }
        }
      }
      if (children != null) {
        forEach(children, function (child) {
          el.appendChild(typeof child === 'string' ? document.createTextNode(child) : child);
        });
      }
      return el
    }
  };

  var createElement = createElementInDocument(document);

  var dispatchOnce = function (func) {
    var onceToken;
    return function () {
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        onceToken = 1;
        func.apply(this, arguments);
      }
    }
  };

  var hasOwnProperty = function (obj, prop) {
    return {}.hasOwnProperty.call(obj, prop)
  };

  var toLowerCase = function (obj) {
    return ('' + obj).toLowerCase()
  };

  var stringify = function (obj, sep, eq, encodeURIComponent) {
    if (sep == null) {
      sep = '&';
    }
    if (eq == null) {
      eq = '=';
    }
    if (encodeURIComponent == null) {
      encodeURIComponent = window.encodeURIComponent;
    }
    var params = [];
    for (var name in obj) {
      var value = obj[name];
      if (value != null) {
        params.push(encodeURIComponent(name) + eq + encodeURIComponent(value));
      }
    }
    return params.join(sep)
  };

  var parse = function (str, sep, eq, decodeURIComponent) {
    if (sep == null) {
      sep = '&';
    }
    if (eq == null) {
      eq = '=';
    }
    if (decodeURIComponent == null) {
      decodeURIComponent = window.decodeURIComponent;
    }
    var obj = {};
    forEach(str.split(sep), function (entry) {
      if (entry !== '') {
        var ref = entry.split(eq);
        obj[decodeURIComponent(ref[0])] = (ref[1] != null ? decodeURIComponent(ref.slice(1).join(eq)) : undefined);
      }
    });
    return obj
  };

  var onEvent = function (target, eventName, func) {
    /* istanbul ignore else: IE lt 9 */
    if (target.addEventListener) {
      target.addEventListener(eventName, func, false);
    } else {
      target.attachEvent('on' + eventName, func);
    }
  };

  var offEvent = function (target, eventName, func) {
    /* istanbul ignore else: IE lt 9 */
    if (target.removeEventListener) {
      target.removeEventListener(eventName, func, false);
    } else {
      target.detachEvent('on' + eventName, func);
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  var onceEvent = function (target, eventName, func) {
    var callback = function () {
      offEvent(target, eventName, callback);
      return func.apply(this, arguments)
    };
    onEvent(target, eventName, callback);
  };

  var onceReadyStateChange = /* istanbul ignore next: IE lt 9 */ function (target, regex, func) {
    if (target.readyState != null) {
      var eventName = 'readystatechange';
      var callback = function () {
        if (regex.test(target.readyState)) {
          offEvent(target, eventName, callback);
          return func.apply(this, arguments)
        }
      };
      onEvent(target, eventName, callback);
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  };

  var defer = /* istanbul ignore next */ function (func) {
    if (document.readyState === 'complete' || (document.readyState !== 'loading' && !document.documentElement.doScroll)) {
      setTimeout(func);
    } else {
      if (document.addEventListener) {
        var callback = dispatchOnce(func);
        onceEvent(document, 'DOMContentLoaded', callback);
        onceEvent(window, 'load', callback);
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        onceReadyStateChange(document, /m/, func);
      }
    }
  };

  var buttonsCssText = "body{margin:0}a{text-decoration:none;outline:0}.widget{display:inline-block;overflow:hidden;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Helvetica,Arial,sans-serif;font-size:0;line-height:0;white-space:nowrap}.btn,.social-count{position:relative;display:inline-block;display:inline-flex;height:14px;padding:2px 5px;font-size:11px;font-weight:600;line-height:14px;vertical-align:bottom;cursor:pointer;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;background-repeat:repeat-x;background-position:-1px -1px;background-size:110% 110%;border:1px solid}.btn{border-radius:.25em}.btn:not(:last-child){border-radius:.25em 0 0 .25em}.social-count{border-left:0;border-radius:0 .25em .25em 0}.widget-lg .btn,.widget-lg .social-count{height:16px;padding:5px 10px;font-size:12px;line-height:16px}.octicon{display:inline-block;vertical-align:text-top;fill:currentColor;overflow:visible}";

  var light = ".btn:focus-visible,.social-count:focus-visible{outline:2px solid #0969da;outline-offset:-2px}.btn{color:#24292f;background-color:#ebf0f4;border-color:#ccd1d5;border-color:rgba(31,35,40,.15);background-image:url(\"data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg'%3e%3clinearGradient id='o' x2='0' y2='1'%3e%3cstop stop-color='%23f6f8fa'/%3e%3cstop offset='90%25' stop-color='%23ebf0f4'/%3e%3c/linearGradient%3e%3crect width='100%25' height='100%25' fill='url(%23o)'/%3e%3c/svg%3e\");background-image:-moz-linear-gradient(top, #f6f8fa, #ebf0f4 90%);background-image:linear-gradient(180deg, #f6f8fa, #ebf0f4 90%);filter:progid:DXImageTransform.Microsoft.Gradient(startColorstr='#FFF6F8FA', endColorstr='#FFEAEFF3')}:root .btn{filter:none}.btn:hover,.btn:focus{background-color:#e9ebef;background-position:0 -0.5em;border-color:#cbcdd1;border-color:rgba(31,35,40,.15);background-image:url(\"data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg'%3e%3clinearGradient id='o' x2='0' y2='1'%3e%3cstop stop-color='%23f3f4f6'/%3e%3cstop offset='90%25' stop-color='%23e9ebef'/%3e%3c/linearGradient%3e%3crect width='100%25' height='100%25' fill='url(%23o)'/%3e%3c/svg%3e\");background-image:-moz-linear-gradient(top, #f3f4f6, #e9ebef 90%);background-image:linear-gradient(180deg, #f3f4f6, #e9ebef 90%);filter:progid:DXImageTransform.Microsoft.Gradient(startColorstr='#FFF3F4F6', endColorstr='#FFE8EAEE')}:root .btn:hover,:root .btn:focus{filter:none}.btn:active{background-color:#e5e9ed;border-color:#c7cbcf;border-color:rgba(31,35,40,.15);background-image:none;filter:none}.social-count{color:#24292f;background-color:#fff;border-color:#dddedf;border-color:rgba(31,35,40,.15)}.social-count:hover,.social-count:focus{color:#0969da}.octicon-heart{color:#bf3989}";

  var lightHighContrast = ".btn:focus-visible,.social-count:focus-visible{outline:2px solid #0349b4;outline-offset:-2px}.btn{color:#0e1116;background-color:#e7ecf0;border-color:#2f3237;border-color:rgba(1,4,9,.8);background-image:none;filter:none}.btn:hover,.btn:focus{background-color:#c4cdd5;background-position:0 -0.5em;border-color:#282c32;border-color:rgba(1,4,9,.8);background-image:none;filter:none}.btn:active{background-color:#d8dde1;border-color:#2c2f34;border-color:rgba(1,4,9,.8)}.social-count{color:#0e1116;background-color:#fff;border-color:#34363a;border-color:rgba(1,4,9,.8)}.social-count:hover,.social-count:focus{color:#0349b4}.octicon-heart{color:#971368}";

  var dark = ".btn:focus-visible,.social-count:focus-visible{outline:2px solid #2f81f7;outline-offset:-2px}.btn{color:#c9d1d9;background-color:#1a1e23;border-color:#2f3439;border-color:rgba(240,246,252,.1);background-image:url(\"data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg'%3e%3clinearGradient id='o' x2='0' y2='1'%3e%3cstop stop-color='%2321262d'/%3e%3cstop offset='90%25' stop-color='%231a1e23'/%3e%3c/linearGradient%3e%3crect width='100%25' height='100%25' fill='url(%23o)'/%3e%3c/svg%3e\");background-image:-moz-linear-gradient(top, #21262d, #1a1e23 90%);background-image:linear-gradient(180deg, #21262d, #1a1e23 90%);filter:progid:DXImageTransform.Microsoft.Gradient(startColorstr='#FF21262D', endColorstr='#FF191D22')}:root .btn{filter:none}.btn:hover,.btn:focus{background-color:#292e33;background-position:0 -0.5em;border-color:#8b949e;background-image:url(\"data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg'%3e%3clinearGradient id='o' x2='0' y2='1'%3e%3cstop stop-color='%2330363d'/%3e%3cstop offset='90%25' stop-color='%23292e33'/%3e%3c/linearGradient%3e%3crect width='100%25' height='100%25' fill='url(%23o)'/%3e%3c/svg%3e\");background-image:-moz-linear-gradient(top, #30363d, #292e33 90%);background-image:linear-gradient(180deg, #30363d, #292e33 90%);filter:progid:DXImageTransform.Microsoft.Gradient(startColorstr='#FF30363D', endColorstr='#FF282D32')}:root .btn:hover,:root .btn:focus{filter:none}.btn:active{background-color:#161719;border-color:#8b949e;background-image:none;filter:none}.social-count{color:#c9d1d9;background-color:#0d1117;border-color:#24282e;border-color:rgba(240,246,252,.1)}.social-count:hover,.social-count:focus{color:#2f81f7}.octicon-heart{color:#db61a2}";

  var darkDimmed = ".btn:focus-visible,.social-count:focus-visible{outline:2px solid #539bf5;outline-offset:-2px}.btn{color:#adbac7;background-color:#30363d;border-color:#40464e;border-color:rgba(205,217,229,.1);background-image:url(\"data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg'%3e%3clinearGradient id='o' x2='0' y2='1'%3e%3cstop stop-color='%23373e47'/%3e%3cstop offset='90%25' stop-color='%2330363d'/%3e%3c/linearGradient%3e%3crect width='100%25' height='100%25' fill='url(%23o)'/%3e%3c/svg%3e\");background-image:-moz-linear-gradient(top, #373e47, #30363d 90%);background-image:linear-gradient(180deg, #373e47, #30363d 90%);filter:progid:DXImageTransform.Microsoft.Gradient(startColorstr='#FF373E47', endColorstr='#FF2F353C')}:root .btn{filter:none}.btn:hover,.btn:focus{background-color:#3c444d;background-position:0 -0.5em;border-color:#768390;background-image:url(\"data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg'%3e%3clinearGradient id='o' x2='0' y2='1'%3e%3cstop stop-color='%23444c56'/%3e%3cstop offset='90%25' stop-color='%233c444d'/%3e%3c/linearGradient%3e%3crect width='100%25' height='100%25' fill='url(%23o)'/%3e%3c/svg%3e\");background-image:-moz-linear-gradient(top, #444c56, #3c444d 90%);background-image:linear-gradient(180deg, #444c56, #3c444d 90%);filter:progid:DXImageTransform.Microsoft.Gradient(startColorstr='#FF444C56', endColorstr='#FF3B434C')}:root .btn:hover,:root .btn:focus{filter:none}.btn:active{background-color:#2e3031;border-color:#768390;background-image:none;filter:none}.social-count{color:#adbac7;background-color:#22272e;border-color:#333940;border-color:rgba(205,217,229,.1)}.social-count:hover,.social-count:focus{color:#539bf5}.octicon-heart{color:#c96198}";

  var darkHighContrast = ".btn:focus-visible,.social-count:focus-visible{outline:2px solid #71b7ff;outline-offset:-2px}.btn{color:#f0f3f6;background-color:#272b33;border-color:#7a828e;background-image:none;filter:none}.btn:hover,.btn:focus{background-color:#4a515b;background-position:0 -0.5em;border-color:#bdc4cc;background-image:none;filter:none}.btn:active{background-color:#1d1d1f;border-color:#bdc4cc}.social-count{color:#f0f3f6;background-color:#0a0c10;border-color:#7a828e}.social-count:hover,.social-count:focus{color:#71b7ff}.octicon-heart{color:#ef6eb1}";

  var widgetColorSchemes = {
    light: light,
    light_high_contrast: lightHighContrast,
    dark: dark,
    dark_dimmed: darkDimmed,
    dark_high_contrast: darkHighContrast
  };

  var getColorSchemeMediaQuery = function (systemColorScheme, widgetColorScheme) {
    return '@media(prefers-color-scheme:' + systemColorScheme + '){' + widgetColorSchemes[hasOwnProperty(widgetColorSchemes, widgetColorScheme) ? widgetColorScheme : systemColorScheme] + '}'
  };

  var getColorScheme = function (declarations) {
    if (declarations == null) {
      return widgetColorSchemes.light
    }

    if (hasOwnProperty(widgetColorSchemes, declarations)) {
      return widgetColorSchemes[declarations]
    }

    var colorSchemes = parse(declarations, ';', ':', function (str) {
      return str.replace(/^[ \t\n\f\r]+|[ \t\n\f\r]+$/g, '')
    });

    return widgetColorSchemes[hasOwnProperty(widgetColorSchemes, colorSchemes['no-preference']) ? colorSchemes['no-preference'] : 'light'] +
      getColorSchemeMediaQuery('light', colorSchemes.light) +
      getColorSchemeMediaQuery('dark', colorSchemes.dark)
  };

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        "16": {
          width: 16,
          path: "<path d=\"M13.25 8a.75.75 0 0 1 .75.75v4.5a.75.75 0 0 1-.75.75h-2.5a.75.75 0 0 1 0-1.5h1.75v-2h-.75a.75.75 0 0 1 0-1.5h.75v-.25a.75.75 0 0 1 .75-.75ZM5 12.25a.25.25 0 0 1 .25-.25h3.5a.25.25 0 0 1 .25.25v3.25a.25.25 0 0 1-.4.2l-1.45-1.087a.249.249 0 0 0-.3 0L5.4 15.7a.25.25 0 0 1-.4-.2ZM2.75 8a.75.75 0 0 1 .75.75v.268c.083-.012.166-.018.25-.018h.5a.75.75 0 0 1 0 1.5h-.5a.25.25 0 0 0-.25.25v.75c0 .28.114.532.3.714a.75.75 0 1 1-1.05 1.072A2.495 2.495 0 0 1 2 11.5V8.75A.75.75 0 0 1 2.75 8ZM11 .75a.75.75 0 0 1 .75-.75h1.5a.75.75 0 0 1 .75.75v1.5a.75.75 0 0 1-1.5 0V1.5h-.75A.75.75 0 0 1 11 .75Zm-5 0A.75.75 0 0 1 6.75 0h2.5a.75.75 0 0 1 0 1.5h-2.5A.75.75 0 0 1 6 .75Zm0 9A.75.75 0 0 1 6.75 9h2.5a.75.75 0 0 1 0 1.5h-2.5A.75.75 0 0 1 6 9.75ZM4.992.662a.75.75 0 0 1-.636.848c-.436.063-.783.41-.846.846a.751.751 0 0 1-1.485-.212A2.501 2.501 0 0 1 4.144.025a.75.75 0 0 1 .848.637ZM2.75 4a.75.75 0 0 1 .75.75v1.5a.75.75 0 0 1-1.5 0v-1.5A.75.75 0 0 1 2.75 4Zm10.5 0a.75.75 0 0 1 .75.75v1.5a.75.75 0 0 1-1.5 0v-1.5a.75.75 0 0 1 .75-.75Z\"></path>"
        }
      }
    },
    star: {
      heights: {
        "16": {
          width: 16,
          path: "<path d=\"M8 .25a.75.75 0 0 1 .673.418l1.882 3.815 4.21.612a.75.75 0 0 1 .416 1.279l-3.046 2.97.719 4.192a.751.751 0 0 1-1.088.791L8 12.347l-3.766 1.98a.75.75 0 0 1-1.088-.79l.72-4.194L.818 6.374a.75.75 0 0 1 .416-1.28l4.21-.611L7.327.668A.75.75 0 0 1 8 .25Zm0 2.445L6.615 5.5a.75.75 0 0 1-.564.41l-3.097.45 2.24 2.184a.75.75 0 0 1 .216.664l-.528 3.084 2.769-1.456a.75.75 0 0 1 .698 0l2.77 1.456-.53-3.084a.75.75 0 0 1 .216-.664l2.24-2.183-3.096-.45a.75.75 0 0 1-.564-.41L8 2.694Z\"></path>"
        }
      }
    }
  };

  var octicon = function (icon, height) {
    icon = toLowerCase(icon).replace(/^octicon-/, '');
    if (!hasOwnProperty(data, icon)) {
      icon = 'mark-github';
    }

    var defaultHeight = height >= 24 && /* istanbul ignore next */ 24 in data[icon].heights ? /* istanbul ignore next */ 24 : 16;

    var svg = data[icon].heights[defaultHeight];

    return '<svg viewBox="0 0 ' + svg.width + ' ' + defaultHeight + '" width="' + (height * svg.width / defaultHeight) + '" height="' + height + '" class="octicon octicon-' + icon + '" aria-hidden="true">' + svg.path + '</svg>'
  };

  var queues = {};

  var fetch = function (url, func) {
    var queue = queues[url] || (queues[url] = []);
    if (queue.push(func) > 1) {
      return
    }

    var callback = dispatchOnce(function () {
      delete queues[url];
      while ((func = queue.shift())) {
        func.apply(null, arguments);
      }
    });

    if (useXHR) {
      var xhr = new XMLHttpRequest();
      onEvent(xhr, 'abort', callback);
      onEvent(xhr, 'error', callback);
      onEvent(xhr, 'load', function () {
        var data;
        try {
          data = JSON.parse(this.responseText);
        } catch (error) {
          callback(error);
          return
        }
        callback(this.status !== 200, data);
      });
      xhr.open('GET', url);
      xhr.send();
    } else {
      var contentWindow = this || window;
      contentWindow._ = function (json) {
        contentWindow._ = null;
        callback(json.meta.status !== 200, json.data);
      };
      var script = createElementInDocument(contentWindow.document)('script', {
        async: true,
        src: url + (url.indexOf('?') !== -1 ? '&' : '?') + 'callback=_'
      });
      var onloadend = /* istanbul ignore next: IE lt 9 */ function () {
        if (contentWindow._) {
          contentWindow._({
            meta: {}
          });
        }
      };
      onEvent(script, 'load', onloadend);
      onEvent(script, 'error', onloadend);
      onceReadyStateChange(script, /de|m/, onloadend);
      contentWindow.document.getElementsByTagName('head')[0].appendChild(script);
    }
  };

  var render$1 = function (root, options, func) {
    var createElement = createElementInDocument(root.ownerDocument);

    var style = root.appendChild(createElement('style', {
      type: 'text/css'
    }));

    var cssText = buttonsCssText + getColorScheme(options['data-color-scheme']);

    /* istanbul ignore if: IE lt 9 */
    if (style.styleSheet) {
      style.styleSheet.cssText = cssText;
    } else {
      style.appendChild(root.ownerDocument.createTextNode(cssText));
    }

    var isLarge = toLowerCase(options['data-size']) === 'large';

    var btn = createElement('a', {
      className: 'btn',
      href: options.href,
      rel: 'noopener',
      target: '_blank',
      title: options.title || undefined,
      'aria-label': options['aria-label'] || undefined,
      innerHTML: octicon(options['data-icon'], isLarge ? 16 : 14) + '&nbsp;'
    }, [
      createElement('span', {}, [options['data-text'] || ''])
    ]);

    var widget = root.appendChild(createElement('div', {
      className: 'widget' + (isLarge ? ' widget-lg' : '')
    }, [
      btn
    ]));

    var hostname = btn.hostname.replace(/\.$/, '');
    if (('.' + hostname).substring(hostname.length - domain.length) !== ('.' + domain)) {
      btn.removeAttribute('href');
      func(widget);
      return
    }

    var path = (' /' + btn.pathname).split(/\/+/);
    if (((hostname === domain || hostname === 'gist.' + domain) && path[3] === 'archive') ||
      (hostname === domain && path[3] === 'releases' && (path[4] === 'download' || (path[4] === 'latest' && path[5] === 'download'))) ||
      (hostname === 'codeload.' + domain)) {
      btn.target = '_top';
    }

    if (toLowerCase(options['data-show-count']) !== 'true' ||
      hostname !== domain ||
      path[1] === 'marketplace' ||
      path[1] === 'sponsors' ||
      path[1] === 'orgs' ||
      path[1] === 'users' ||
      path[1] === '-') {
      func(widget);
      return
    }

    var href, property;
    if (!path[2] && path[1]) {
      property = 'followers';
      href = '?tab=followers';
    } else if (!path[3] && path[2]) {
      property = 'stargazers_count';
      href = '/stargazers';
    } else if (!path[4] && path[3] === 'subscription') {
      property = 'subscribers_count';
      href = '/watchers';
    } else if (!path[4] && path[3] === 'fork') {
      property = 'forks_count';
      href = '/forks';
    } else if (path[3] === 'issues') {
      property = 'open_issues_count';
      href = '/issues';
    } else {
      func(widget);
      return
    }

    var api = path[2] ? '/repos/' + path[1] + '/' + path[2] : '/users/' + path[1];
    fetch.call(this, apiBaseURL + api, function (error, json) {
      if (!error) {
        var data = json[property];
        widget.appendChild(createElement('a', {
          className: 'social-count',
          href: json.html_url + href,
          rel: 'noopener',
          target: '_blank',
          'aria-label': data + ' ' + property.replace(/_count$/, '').replace('_', ' ').slice(0, data < 2 ? -1 : undefined) + ' on GitHub'
        }, [
          ('' + data).replace(/\B(?=(\d{3})+(?!\d))/g, ',')
        ]));
      }
      func(widget);
    });
  };

  var parseOptions = function (anchor) {
    var options = {
      href: anchor.href,
      title: anchor.title,
      'aria-label': anchor.getAttribute('aria-label')
    };

    forEach(['icon', 'color-scheme', 'text', 'size', 'show-count'], function (option) {
      var attribute = 'data-' + option;
      options[attribute] = anchor.getAttribute(attribute);
    });

    if (options['data-text'] == null) {
      options['data-text'] = anchor.textContent || anchor.innerText;
    }

    return options
  };

  var devicePixelRatio = window.devicePixelRatio || /* istanbul ignore next */ 1;

  var ceilPixel = function (px) {
    return (devicePixelRatio > 1 ? Math.ceil(Math.round(px * devicePixelRatio) / devicePixelRatio * 2) / 2 : Math.ceil(px)) || 0
  };

  var get = function (el) {
    var width = el.offsetWidth;
    var height = el.offsetHeight;
    if (el.getBoundingClientRect) {
      var boundingClientRect = el.getBoundingClientRect();
      width = Math.max(width, ceilPixel(boundingClientRect.width));
      height = Math.max(height, ceilPixel(boundingClientRect.height));
    }
    return [width, height]
  };

  var set = function (el, size) {
    el.style.width = size[0] + 'px';
    el.style.height = size[1] + 'px';
  };

  var render = function (options, func) {
    if (options == null || func == null) {
      return
    }
    if (options.getAttribute) {
      options = parseOptions(options);
    }
    if (useShadowDOM) {
      var host = createElement('span');
      render$1(host.attachShadow({ mode: 'closed' }), options, function () {
        func(host);
      });
    } else {
      var iframe = createElement('iframe', {
        src: 'javascript:0',
        title: options.title || undefined,
        allowtransparency: true,
        scrolling: 'no',
        frameBorder: 0
      });
      set(iframe, [0, 0]);
      iframe.style.border = 'none';
      var callback = function () {
        var contentWindow = iframe.contentWindow;
        var body;
        try {
          body = contentWindow.document.body;
        } catch (_) /* istanbul ignore next: IE 11 */ {
          document.body.appendChild(iframe.parentNode.removeChild(iframe));
          return
        }
        offEvent(iframe, 'load', callback);
        render$1.call(contentWindow, body, options, function (widget) {
          var size = get(widget);
          iframe.parentNode.removeChild(iframe);
          onceEvent(iframe, 'load', function () {
            set(iframe, size);
          });
          iframe.src = iframeURL + '#' + (iframe.name = stringify(options));
          func(iframe);
        });
      };
      onEvent(iframe, 'load', callback);
      document.body.appendChild(iframe);
    }
  };

  if (location.protocol + '//' + location.host + location.pathname === iframeURL) {
    render$1(document.body, parse(window.name || location.hash.replace(/^#/, '')), function () {});
  } else {
    defer(function () {
      var anchors = document.querySelectorAll
        ? document.querySelectorAll('a.' + buttonClass)
        : (function () {
            var results = [];
            forEach(document.getElementsByTagName('a'), function (a) {
              if ((' ' + a.className + ' ').replace(/[ \t\n\f\r]+/g, ' ').indexOf(' ' + buttonClass + ' ') !== -1) {
                results.push(a);
              }
            });
            return results
          })();
      forEach(anchors, function (anchor) {
        render(anchor, function (el) {
          anchor.parentNode.replaceChild(el, anchor);
        });
      });
    });
  }

  window.githubButtons = { render: render };
})();