facetapi_bonus-radio-widget-2034777-2d.patch

diff --git a/facetapi_bonus.info b/facetapi_bonus.info
index f9ba779..a716118 100644
--- a/facetapi_bonus.info
+++ b/facetapi_bonus.info
@@ -7,6 +7,7 @@ dependencies[] = facetapi
 files[] = plugins/facetapi/dependency_facet.inc
 files[] = plugins/facetapi/filter_rewrite_items.inc
 files[] = plugins/facetapi/filter_exclude_specified_items.inc
+files[] = plugins/facetapi/widget_links_radio.inc
 files[] = plugins/facetapi/filter_narrow_results.inc
 files[] = plugins/facetapi/filter_show_if_minimum_items.inc
 files[] = plugins/facetapi/filter_show_deepest_level_items.inc
diff --git a/facetapi_bonus.module b/facetapi_bonus.module
index 3df1e21..5ded35a 100644
--- a/facetapi_bonus.module
+++ b/facetapi_bonus.module
@@ -50,3 +50,18 @@ function facetapi_bonus_facetapi_filters() {
     ),
   );
 }
+
+/**
+ * Implements hook_facetapi_widgets().
+ */
+function facetapi_bonus_facetapi_widgets() {
+  return array(
+    'facetapi_radio_links' => array(
+      'handler' => array(
+        'label' => t('Links with radio buttons'),
+        'class' => 'FacetapiWidgetRadioLinks',
+        'query types' => array('term', 'date'),
+      ),
+    ),
+  );
+}
diff --git a/facetapi_bonus_widget_links_radio.js b/facetapi_bonus_widget_links_radio.js
new file mode 100644
index 0000000..3ed9869
--- /dev/null
+++ b/facetapi_bonus_widget_links_radio.js
@@ -0,0 +1,65 @@
+(function ($) {
+
+  Drupal.behaviors.facetapi_bonus = {
+    attach: function(context, settings) {
+      if (settings.facetapi) {
+        for (var index in settings.facetapi.facets) {
+          if (null != settings.facetapi.facets[index].makeRadios) {
+            // Find all radio facet links and give them a radio button.
+            var elements = $(settings.facetapi.facets[index].selector + ' a.facetapi-radio', context);
+            if (elements.length === 0) {
+              $('#' + settings.facetapi.facets[index].id + ' a.facetapi-radio', context).each(Drupal.facetapi_bonus.makeRadio);
+            }
+            else {
+              $(settings.facetapi.facets[index].selector + ' a.facetapi-radio', context).each(Drupal.facetapi_bonus.makeRadio);
+            }
+          }
+        }
+      }
+    }
+  }
+
+  /**
+   * Class containing functionality for Facet API.
+   */
+  Drupal.facetapi_bonus = {};
+
+  /**
+   * Replace an unclick link with a checked radio button.
+   */
+  Drupal.facetapi_bonus.makeRadio = function() {
+    var $link = $(this);
+    if (!$link.hasClass('facetapi-radio-processed')) {
+      var active;
+      if ($link.hasClass('facetapi-inactive')) {
+        active = false;
+      }
+      else if ($link.hasClass('facetapi-active')) {
+        active = true;
+      }
+      else {
+        // Not a facet link.
+        return;
+      }
+      // Derive an ID and label for the radio based on the associated link.
+      // The label is required for accessibility, but it duplicates information
+      // in the link itself, so it should only be shown to screen reader users.
+      var id = this.id + '--radio';
+      var description = $link.find('.element-invisible').html();
+      var label = $('<label class="element-invisible" for="' + id + '">' + description + '</label>');
+      var radio = active ? $('<input type="radio" class="facetapi-radio" id="' + id + '" checked="true" />') : $('<input type="radio" class="facetapi-radio" id="' + id + '" />');
+      // Get the href of the link that is this DOM object.
+      var href = $link.attr('href');
+      redirect = new Drupal.facetapi.Redirect(href);
+      if (active) {
+        // Add the radio and label, hide the link.
+        $link.before(label).before(radio).hide();
+      }
+      else {
+        $link.before(label).before(radio);
+        radio.click($.proxy(redirect, 'gotoHref'));
+      }
+      $link.removeClass('facetapi-radio').addClass('facetapi-radio-processed');
+    }
+  }
+})(jQuery);
diff --git a/plugins/facetapi/widget_links_radio.inc b/plugins/facetapi/widget_links_radio.inc
new file mode 100644
index 0000000..84fa96d
--- /dev/null
+++ b/plugins/facetapi/widget_links_radio.inc
@@ -0,0 +1,32 @@
+<?php
+
+/**
+ * Widget that renders facets as a list of clickable radio buttons.
+ *
+ * This widget renders facets in the same way as FacetapiWidgetLinks but uses
+ * JavaScript to transform the links into radio buttons followed by the facet.
+ */
+class FacetapiWidgetRadioLinks extends FacetapiWidgetLinks {
+
+  /**
+   * Overrides FacetapiWidgetLinks::init().
+   *
+   * Adds additional JavaScript file & settings.
+   */
+  public function init() {
+    parent::init();
+    $this->jsSettings['makeRadios'] = 1;
+    $this->jsSettings['selector'] = '.' . $this->id . '_' . str_replace(':', '', $this->key);
+
+    drupal_add_js(drupal_get_path('module', 'facetapi_bonus') . '/facetapi_bonus_widget_links_radio.js');
+  }
+
+  /**
+   * Overrides FacetapiWidgetLinks::getItemClasses().
+   *
+   * Sets the base class for radio facet items.
+   */
+  public function getItemClasses() {
+    return array('facetapi-radio');
+  }
+}
\ No newline at end of file