Add warning message for user locking themselves out.

includes/object_properties.form.inc

@@ -19,6 +19,9 @@
  *   The drupal form definition.
  */
 function islandora_object_properties_form(array $form, array &$form_state, AbstractObject $object) {
+  if (isset($form_state['islandora']['needs_confirmation'])) {
+    return islandora_object_properties_confirm_form($form_state);
+  }
   $form_state['object'] = $object;
   $temp = islandora_invoke_hook_list(ISLANDORA_UPDATE_RELATED_OBJECTS_PROPERTIES_HOOK, $object->models, array($object));
   $related_objects_pids = array();
@@ -110,6 +113,22 @@ function islandora_object_properties_form(array $form, array &$form_state, Abstr
  *   The Drupal form state.
  */
 function islandora_object_properties_form_submit(array $form, array &$form_state) {
+  if (isset($form_state['islandora']['needs_confirmation'])){
+    $form_state['values'] = $form_state['islandora']['values'];
+  }
+  else {
+    // Confirm if user is about to lock themselves out of this object.
+    if (in_array($form_state['values']['object_state'], ['I','D'])) {
+      if ($form_state['object']->state == 'A') {
+        if (!user_access(ISLANDORA_ACCESS_INACTIVE_AND_DELETED_OBJECTS)) {
+          $form_state['islandora']['needs_confirmation'] = TRUE;
+          $form_state['islandora']['values'] = $form_state['values'];
+          $form_state['rebuild'] = TRUE;
+          return;
+        }
+      }
+    }
+  }
   $object = $form_state['object'];
   $owner = $form_state['values']['object_owner'];
   $state = $form_state['values']['object_state'];
@@ -214,3 +233,20 @@ function islandora_update_object_properties($pid, $update_states, $state, $updat
 function islandora_object_properties_regenerate_derivatives(array $form, array &$form_state) {
   drupal_goto("islandora/object/{$form_state['object']}/regenerate");
 }
+
+/**
+ * Confirmation form for object properties admin form.
+ *
+ * @param array $form_state
+ *   The Drupal form state.
+ */
+function islandora_object_properties_confirm_form(&$form_state) {
+  $desc = t('You do not have permission to view Inactive or Deleted objects, so you will no longer be able to view or manage this object. Are you sure?');
+  $path = "islandora/object/{$form_state['object']->id}/manage/properties";
+  return confirm_form(array(),
+    'Are you sure you want to set the object state?',
+    $path,
+    $desc,
+    'Continue',
+    'Cancel');
+}