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-rw-r--r--engine/lib/elgglib.php48
1 files changed, 48 insertions, 0 deletions
diff --git a/engine/lib/elgglib.php b/engine/lib/elgglib.php
index 42d6ffc6f..fd270bc1d 100644
--- a/engine/lib/elgglib.php
+++ b/engine/lib/elgglib.php
@@ -2661,6 +2661,54 @@ function elgg_http_add_url_query_elements($url, array $elements) {
return $string;
}
+
+/**
+ * Breadcrumb support.
+ */
+
+/**
+ * Adds a breadcrumb to the stack
+ *
+ * @param string $title The title to display
+ * @param string $link Optional. The link for the title.
+ */
+function elgg_push_breadcrumb($title, $link = NULL) {
+ global $CONFIG;
+ if (!is_array($CONFIG->breadcrumbs)) {
+ $CONFIG->breadcrumbs = array();
+ }
+
+ // avoid key collisions.
+ $CONFIG->breadcrumbs[] = array('title' => $title, 'link' => $link);
+}
+
+/**
+ * Removes last breadcrumb entry.
+ *
+ * @return array popped item.
+ */
+function elgg_pop_breadcrumb() {
+ global $CONFIG;
+
+ if (is_array($CONFIG->breadcrumbs)) {
+ array_pop($CONFIG->breadcrumbs);
+ }
+
+ return FALSE;
+}
+
+/**
+ * Returns all breadcrumbs
+ *
+ * @return array Breadcrumbs
+ */
+function elgg_get_breadcrumbs() {
+ global $CONFIG;
+
+ return (is_array($CONFIG->breadcrumbs)) ? $CONFIG->breadcrumbs : array();
+}
+
+
/**
* Returns the PHP INI setting in bytes
*