https://icefi.org/sites/all/modules/extlink/extlink.js?t8lpog

1(function ($) {
2
3Drupal.extlink = Drupal.extlink || {};
4
5Drupal.extlink.attach = function (context, settings) {
6  if (!settings.hasOwnProperty('extlink')) {
7    return;
8  }
9
10  // Strip the host name down, removing ports, subdomains, or www.
11  var pattern = /^(([^\/:]+?\.)*)([^\.:]{4,})((\.[a-z]{1,4})*)(:[0-9]{1,5})?$/;
12  var host = window.location.host.replace(pattern, '$3$4');
13  var subdomain = window.location.host.replace(pattern, '$1');
14
15  // Determine what subdomains are considered internal.
16  var subdomains;
17  if (settings.extlink.extSubdomains) {
18    subdomains = "([^/]*\\.)?";
19  }
20  else if (subdomain == 'www.' || subdomain == '') {
21    subdomains = "(www\\.)?";
22  }
23  else {
24    subdomains = subdomain.replace(".", "\\.");
25  }
26
27  // Build regular expressions that define an internal link.
28  var internal_link = new RegExp("^https?://" + subdomains + host, "i");
29
30  // Extra internal link matching.
31  var extInclude = false;
32  if (settings.extlink.extInclude) {
33    extInclude = new RegExp(settings.extlink.extInclude.replace(/\\/, '\\'), "i");
34  }
35
36  // Extra external link matching.
37  var extExclude = false;
38  if (settings.extlink.extExclude) {
39    extExclude = new RegExp(settings.extlink.extExclude.replace(/\\/, '\\'), "i");
40  }
41
42  // Extra external link CSS selector exclusion.
43  var extCssExclude = false;
44  if (settings.extlink.extCssExclude) {
45    extCssExclude = settings.extlink.extCssExclude;
46  }
47
48  // Extra external link CSS selector explicit.
49  var extCssExplicit = false;
50  if (settings.extlink.extCssExplicit) {
51    extCssExplicit = settings.extlink.extCssExplicit;
52  }
53
54  // Find all links which are NOT internal and begin with http as opposed
55  // to ftp://, javascript:, etc. other kinds of links.
56  // When operating on the 'this' variable, the host has been appended to
57  // all links by the browser, even local ones.
58  // In jQuery 1.1 and higher, we'd use a filter method here, but it is not
59  // available in jQuery 1.0 (Drupal 5 default).
60  var external_links = new Array();
61  var mailto_links = new Array();
62  $("a:not(." + settings.extlink.extClass + ", ." + settings.extlink.mailtoClass + "), area:not(." + settings.extlink.extClass + ", ." + settings.extlink.mailtoClass + ")", context).each(function(el) {
63    try {
64      var url = this.href.toLowerCase();
65      if (url.indexOf('http') == 0
66        && ((!url.match(internal_link) && !(extExclude && url.match(extExclude))) || (extInclude && url.match(extInclude)))
67        && !(extCssExclude && $(this).parents(extCssExclude).length > 0)
68        && !(extCssExplicit && $(this).parents(extCssExplicit).length < 1)) {
69        external_links.push(this);
70      }
71      // Do not include area tags with begin with mailto: (this prohibits
72      // icons from being added to image-maps).
73      else if (this.tagName != 'AREA' 
74        && url.indexOf('mailto:') == 0 
75        && !(extCssExclude && $(this).parents(extCssExclude).length > 0)
76        && !(extCssExplicit && $(this).parents(extCssExplicit).length < 1)) {
77        mailto_links.push(this);
78      }
79    }
80    // IE7 throws errors often when dealing with irregular links, such as:
81    // <a href="node/10"></a> Empty tags.
82    // <a href="http://user:[email protected]">example</a> User:pass syntax.
83    catch (error) {
84      return false;
85    }
86  });
87
88  if (settings.extlink.extClass) {
89    Drupal.extlink.applyClassAndSpan(external_links, settings.extlink.extClass);
90  }
91
92  if (settings.extlink.mailtoClass) {
93    Drupal.extlink.applyClassAndSpan(mailto_links, settings.extlink.mailtoClass);
94  }
95
96  if (settings.extlink.extTarget) {
97    // Apply the target attribute to all links.
98    $(external_links).attr('target', settings.extlink.extTarget);
99  }
100
101  Drupal.extlink = Drupal.extlink || {};
102
103  // Set up default click function for the external links popup. This should be
104  // overridden by modules wanting to alter the popup.
105  Drupal.extlink.popupClickHandler = Drupal.extlink.popupClickHandler || function() {
106    if (settings.extlink.extAlert) {
107      return confirm(settings.extlink.extAlertText);
108    }
109   }
110
111  $(external_links).click(function(e) {
112    return Drupal.extlink.popupClickHandler(e);
113  });
114};
115
116/**
117 * Apply a class and a trailing <span> to all links not containing images.
118 *
119 * @param links
120 *   An array of DOM elements representing the links.
121 * @param class_name
122 *   The class to apply to the links.
123 */
124Drupal.extlink.applyClassAndSpan = function (links, class_name) {
125  var $links_to_process;
126  if (Drupal.settings.extlink.extImgClass){
127    $links_to_process = $(links);
128  }
129  else {
130    var links_with_images = $(links).find('img').parents('a');
131    $links_to_process = $(links).not(links_with_images);
132  }
133  $links_to_process.addClass(class_name);
134  var i;
135  var length = $links_to_process.length;
136  for (i = 0; i < length; i++) {
137    var $link = $($links_to_process[i]);
138    if ($link.css('display') == 'inline' || $link.css('display') == 'inline-block') {
139      if (class_name == Drupal.settings.extlink.mailtoClass) {
140        $link.append('<span class="' + class_name + '"><span class="element-invisible"> ' + Drupal.settings.extlink.mailtoLabel + '</span></span>');
141      }
142      else {
143        $link.append('<span class="' + class_name + '"><span class="element-invisible"> ' + Drupal.settings.extlink.extLabel + '</span></span>');
144      }
145    }
146  }
147};
148
149Drupal.behaviors.extlink = Drupal.behaviors.extlink || {};
150Drupal.behaviors.extlink.attach = function (context, settings) {
151  // Backwards compatibility, for the benefit of modules overriding extlink
152  // functionality by defining an "extlinkAttach" global function.
153  if (typeof extlinkAttach === 'function') {
154    extlinkAttach(context);
155  }
156  else {
157    Drupal.extlink.attach(context, settings);
158  }
159};
160
161})(jQuery);