Issue #25: Add an alter hook for renderable output.

on_the_web.api.php

@@ -25,3 +25,24 @@ function hook_on_the_web_get_services_alter(&$services) {
     'fa-icon' => 'fa-vimeo-square',
   );
 }
+
+/**
+ * Alter the links displayedby on_the_web_display_block().
+ *
+ * This alter function can be used to:
+ * - Change how the links are rendered.
+ *
+ * @see on_the_web_display_block().
+ */
+function hook_on_the_web_links_alter(&$links) {
+  // Turn the links into an item-list.
+  $items = array();
+  foreach ($links as $link) {
+    $items[] = backdrop_render($link);
+  }
+  $links = array(
+    '#theme' => 'item_list',
+    '#items' => $items,
+  );
+}
+

on_the_web.module

@@ -213,6 +213,9 @@ function on_the_web_display_block($delta, $settings = array(), $contexts = array
     }
   }
 
+  // Add an alter here.
+  backdrop_alter('on_the_web_links', $links);
+
   return backdrop_render($links);
 }
 
@@ -290,7 +293,7 @@ function on_the_web_get_services() {
       'fa-icon' => 'fa-linkedin-square',
     ),
     'itunes' => array(
-      'name' => 'iTunes',
+      'name' => 'Podcast',
       'fa-icon' => 'fa-apple',
     ),
     'delicious' => array(