https://andersaamodt.com/static/footer-pages.js?v=1488115087

1(function () {
2  'use strict';
3
4  var CACHE_KEY = 'cached_footer_pages_v1';
5
6  function pageTitle(page) {
7    return String((page && (page.title || page.placeholder_title || page.slug)) || '').trim();
8  }
9
10  function pagePath(page) {
11    return String((page && page.path) || '').trim() || '/';
12  }
13
14  function validPages(value) {
15    return (Array.isArray(value) ? value : []).filter(function (page) {
16      return page && pageTitle(page) && pagePath(page);
17    });
18  }
19
20  function renderFooterPages(pages) {
21    var nav = document.getElementById('footer-pages');
22    if (!nav) {
23      return;
24    }
25    var rows = validPages(pages);
26    if (!rows.length) {
27      nav.innerHTML = '';
28      nav.hidden = true;
29      return;
30    }
31    nav.innerHTML = rows.map(function (page) {
32      var a = document.createElement('a');
33      a.className = 'footer-page-link';
34      a.href = pagePath(page);
35      a.textContent = pageTitle(page);
36      return a.outerHTML;
37    }).join('');
38    nav.hidden = false;
39  }
40
41  function bootstrapPages() {
42    if (window.__wizardrySiteBootstrap && Array.isArray(window.__wizardrySiteBootstrap.footer_pages)) {
43      return window.__wizardrySiteBootstrap.footer_pages;
44    }
45    try {
46      return JSON.parse(localStorage.getItem(CACHE_KEY) || '[]');
47    } catch (_err) {
48      return [];
49    }
50  }
51
52  function cachePages(pages) {
53    try {
54      localStorage.setItem(CACHE_KEY, JSON.stringify(validPages(pages)));
55    } catch (_err) {
56      // Ignore cache write failures.
57    }
58  }
59
60  function refreshFromStatic() {
61    fetch('/static/footer-pages.json', { cache: 'no-store' })
62      .then(function (res) {
63        if (!res.ok) {
64          throw new Error('footer pages unavailable');
65        }
66        return res.json();
67      })
68      .then(function (data) {
69        var pages = validPages(data && data.pages);
70        cachePages(pages);
71        renderFooterPages(pages);
72      })
73      .catch(function () {
74        // Keep the bootstrapped/cached footer rather than flashing empty.
75      });
76  }
77
78  renderFooterPages(bootstrapPages());
79  if (document.readyState === 'loading') {
80    document.addEventListener('DOMContentLoaded', function () {
81      renderFooterPages(bootstrapPages());
82      refreshFromStatic();
83    }, { once: true });
84  } else {
85    refreshFromStatic();
86  }
87  window.addEventListener('wizardry-footer-refresh-request', function (event) {
88    var pages = event && event.detail && Array.isArray(event.detail.pages) ? event.detail.pages : [];
89    cachePages(pages);
90    renderFooterPages(pages);
91  });
92})();