From 7fef116c00f55abbaa9dbbe6dd638e3bbb0c2927 Mon Sep 17 00:00:00 2001
From: Jordan Dukart <jordan@discoverygarden.ca>
Date: Tue, 3 Sep 2013 19:39:00 +0000
Subject: [PATCH 1/2] Add alterable breadcrumbs to Islandora.

---
 includes/breadcrumb.inc | 1 +
 islandora.api.php       | 7 +++++++
 2 files changed, 8 insertions(+)

diff --git a/includes/breadcrumb.inc b/includes/breadcrumb.inc
index 872eb70a..24b9fbbe 100644
--- a/includes/breadcrumb.inc
+++ b/includes/breadcrumb.inc
@@ -27,6 +27,7 @@
 function islandora_get_breadcrumbs($object) {
   $breadcrumbs = islandora_get_breadcrumbs_recursive($object->id, $object->repository);
   array_pop($breadcrumbs);
+  drupal_alter('islandora_breadcrumbs', $breadcrumbs);
   return $breadcrumbs;
 }
 
diff --git a/islandora.api.php b/islandora.api.php
index 6d25bae3..1d6754c9 100644
--- a/islandora.api.php
+++ b/islandora.api.php
@@ -648,3 +648,10 @@ function hook_islandora_derivative() {
 function hook_CMODEL_PID_islandora_derivative() {
 
 }
+
+/**
+ * Alters breadcrumbs used on Solr search results and collection views.
+ */
+function hook_islandora_breadcrumbs_alter(&$breadcrumbs) {
+
+}

From 0c50962a63e91276f21a543f098ff1f9a37d8815 Mon Sep 17 00:00:00 2001
From: Jordan Dukart <jordan@discoverygarden.ca>
Date: Tue, 3 Sep 2013 19:55:07 +0000
Subject: [PATCH 2/2] Add context for ease of use.

---
 includes/breadcrumb.inc | 3 ++-
 islandora.api.php       | 9 +++++++--
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/includes/breadcrumb.inc b/includes/breadcrumb.inc
index 24b9fbbe..05ab1bac 100644
--- a/includes/breadcrumb.inc
+++ b/includes/breadcrumb.inc
@@ -27,7 +27,8 @@
 function islandora_get_breadcrumbs($object) {
   $breadcrumbs = islandora_get_breadcrumbs_recursive($object->id, $object->repository);
   array_pop($breadcrumbs);
-  drupal_alter('islandora_breadcrumbs', $breadcrumbs);
+  $context = 'islandora';
+  drupal_alter('islandora_breadcrumbs', $breadcrumbs, $context);
   return $breadcrumbs;
 }
 
diff --git a/islandora.api.php b/islandora.api.php
index 1d6754c9..3a773e2b 100644
--- a/islandora.api.php
+++ b/islandora.api.php
@@ -650,8 +650,13 @@ function hook_CMODEL_PID_islandora_derivative() {
 }
 
 /**
- * Alters breadcrumbs used on Solr search results and collection views.
+ * 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) {
+function hook_islandora_breadcrumbs_alter(&$breadcrumbs, $context) {
 
 }