https://servicedesk.adult-empire.com/includes/jquery/plugins/handleaccesskeys/handleAccessKeys.js

1(function (jQuery) {
2  var _ = require('underscore');
3
4  /**
5   *
6   * A way to handle duplicate access keys in forms. So for instance using accesskey="s" does not submit a different form
7   * to the one you have focus in.
8   *
9   * @example
10   * jQuery("form").handleAccessKeys();
11   *
12   * @function external:"jQuery.fn".handleAccessKeys
13   * @param {Boolean} options.selective - Remove all access keys or just the ones that exist elsewhere
14   */
15  jQuery.fn.handleAccessKeys = function (options) {
16    var accessKeyAttr = "accesskey";
17    if (jQuery.browser.msie && jQuery.browser.version == "7.0") {
18      accessKeyAttr = "accessKey";
19    }
20    options = options || {};
21    this.each(function () {
22      var $form = jQuery(this),
23        accesskeyElements = {
24          getBlackList: _.once(function getBlackList() {
25            var blacklist = [];
26            this.getMyAccesskeyElems().each(function () {
27              if (this.hasAttribute(accessKeyAttr)) {
28                blacklist.push(this.getAttribute(accessKeyAttr).toLowerCase());
29              }
30            });
31            return blacklist;
32          }),
33          getMyAccesskeyElems: _.once(function getMyAccesskeyElems() {
34            return jQuery(":input[" + accessKeyAttr + "], a[" + accessKeyAttr + "]", $form);
35          }),
36          getOtherAccesskeyElems: _.once(function getOtherAccesskeyElems() {
37            return jQuery("form").not($form).find(":input[" + accessKeyAttr + "], a[" + accessKeyAttr + "]");
38          })
39        };
40      if (!$form.is("form")) {
41        console.warn("jQuery.fn.handleAccessKeys: node type [" + $form.prop("nodeName") + "] is not valid. " + "Only <form> supported");
42        return this;
43      }
44      if ($form.data("handleAccessKeys.applied")) {
45        return;
46      }
47      $form.data("handleAccessKeys.applied", true);
48      $form.delegate(":input, a", "focus", function () {
49        removeAccessKeys(accesskeyElements.getOtherAccesskeyElems(), accesskeyElements.getBlackList());
50        attachAccessKeys(accesskeyElements.getMyAccesskeyElems());
51      }).delegate(":input, a", "blur", function () {
52        attachAccessKeys(accesskeyElements.getOtherAccesskeyElems());
53      });
54    });
55    function isInvalid(key, blackList) {
56      if (key) {
57        if (options.selective === false) {
58          return true;
59        }
60        if (/[a-z]/i.test(key)) {
61          key = key.toLowerCase();
62        }
63        return jQuery.inArray(key, blackList) !== -1;
64      }
65    }
66    function attachAccessKeys($accessKeyElems) {
67      $accessKeyElems.each(function () {
68        var $this = jQuery(this);
69        if ($this.data(accessKeyAttr)) {
70          $this.attr(accessKeyAttr, $this.data(accessKeyAttr));
71        }
72      });
73    }
74    function removeAccessKeys($accessKeyElems, blackList) {
75      $accessKeyElems.each(function () {
76        var $this = jQuery(this);
77        if (isInvalid($this.attr(accessKeyAttr), blackList)) {
78          $this.data(accessKeyAttr, $this.attr(accessKeyAttr));
79          $this.removeAttr(accessKeyAttr);
80        }
81      });
82    }
83    return this;
84  };
85})(jQuery);