https://camdennaz.church/wp-content/themes/maranatha/js/lib/viewport-units-buggyfill.hacks.js?ver=2.1

1/*!
2 * viewport-units-buggyfill.hacks v0.6.2
3 * @web: https://github.com/rodneyrehm/viewport-units-buggyfill/
4 * @author: Zoltan Hawryluk - http://www.useragentman.com/
5 */
6
7(function() {
8  (function(root, factory) {
9    'use strict';
10    if (typeof define === 'function' && define.amd) {
11      // AMD. Register as an anonymous module.
12      define([], factory);
13    } else if (typeof exports === 'object') {
14      // Node. Does not work with strict CommonJS, but
15      // only CommonJS-like enviroments that support module.exports,
16      // like Node.
17      module.exports = factory();
18    } else {
19      // Browser globals (root is window)
20      root.viewportUnitsBuggyfillHacks = factory();
21    }
22  }(this, function() {
23    'use strict';
24
25    var calcExpression = /calc\(/g;
26    var quoteExpression = /["']/g;
27    var userAgent = window.navigator.userAgent;
28    var isBuggyIE = /MSIE [0-9]\./i.test(userAgent);
29
30    // added check for IE10, IE11 and Edge < 20, since it *still* doesn't understand vmax
31    // http://caniuse.com/#feat=viewport-units
32    if (!isBuggyIE) {
33      isBuggyIE = !!navigator.userAgent.match(/MSIE 10\.|Trident.*rv[ :]*1[01]\.| Edge\/1\d\./);
34    }
35
36    // iOS SAFARI, IE9, or Stock Android: abuse "content" if "viewport-units-buggyfill" specified
37    function checkHacks(declarations, rule, name, value) {
38      var needsHack = name === 'content' && value.indexOf('viewport-units-buggyfill') > -1;
39      if (!needsHack) {
40        return;
41      }
42
43      var fakeRules = value.replace(quoteExpression, '');
44      fakeRules.split(';').forEach(function(fakeRuleElement) {
45        var fakeRule = fakeRuleElement.split(':');
46        if (fakeRule.length !== 2) {
47          return;
48        }
49
50        var name = fakeRule[0].trim();
51        if (name === 'viewport-units-buggyfill') {
52          return;
53        }
54
55        var value = fakeRule[1].trim();
56        declarations.push([rule, name, value]);
57        if (calcExpression.test(value)) {
58          var webkitValue = value.replace(calcExpression, '-webkit-calc(');
59          declarations.push([rule, name, webkitValue]);
60        }
61      });
62    }
63
64    return {
65      required: function(options) {
66        return options.isMobileSafari || isBuggyIE;
67      },
68
69      initialize: function() {},
70
71      initializeEvents: function(options, refresh, _refresh) {
72        if (options.force) {
73          return;
74        }
75
76        if (isBuggyIE && !options._listeningToResize) {
77          window.addEventListener('resize', _refresh, true);
78          options._listeningToResize = true;
79        }
80      },
81
82      findDeclarations: function(declarations, rule, name, value) {
83        if (name === null) {
84          // KeyframesRule does not have a CSS-PropertyName
85          return;
86        }
87
88        checkHacks(declarations, rule, name, value);
89      },
90
91      overwriteDeclaration: function(rule, name, _value) {
92        if (isBuggyIE && name === 'filter') {
93          // remove unit "px" from complex value, e.g.:
94          // filter: progid:DXImageTransform.Microsoft.DropShadow(OffX=5.4px, OffY=3.9px, Color=#000000);
95          _value = _value.replace(/px/g, '');
96        }
97
98        return _value;
99      },
100    };
101  }));
102})();