Merge pull request #399 from jordandukart/7.x-alter-breadcrumbs

Add alterable breadcrumbs to Islandora.

includes/breadcrumb.inc

@@ -27,6 +27,8 @@
 function islandora_get_breadcrumbs($object) {
   $breadcrumbs = islandora_get_breadcrumbs_recursive($object->id, $object->repository);
   array_pop($breadcrumbs);
+  $context = 'islandora';
+  drupal_alter('islandora_breadcrumbs', $breadcrumbs, $context);
   return $breadcrumbs;
 }
 

islandora.api.php

@@ -648,3 +648,15 @@ function hook_islandora_derivative() {
 function hook_CMODEL_PID_islandora_derivative() {
 
 }
+
+/**
+ * Alters breadcrumbs used on Solr search results and within Islandora views.
+ *
+ * @param array $breadcrumbs
+ *   Breadcrumbs array to be altered by reference. Each element is markup.
+ * @param string $context
+ *   Where the alter is originating from for distinguishing.
+ */
+function hook_islandora_breadcrumbs_alter(&$breadcrumbs, $context) {
+
+}