metatag-vbo-integration-1624266.patch

diff --git a/metatag.module b/metatag.module
index a44128327f..fc264a5f0e 100644
--- a/metatag.module
+++ b/metatag.module
@@ -247,6 +247,147 @@ function metatag_flush_caches() {
   return array('cache_metatag');
 }
 
+/**
+ * Implements hook_action_info().
+ * Provides integration with Views bulk operations.
+ */
+function metatag_action_info() {
+  return array(
+    'metatag_modify_metatags_action' => array(
+      'type' => 'entity',
+      'label' => t('Modify entity metatags'),
+      'configurable' => FALSE,
+      'vbo_configurable' => TRUE,
+      'behavior' => array('changes_property'),
+      'triggers' => array('any'),
+      'permissions' => array('edit meta tags'),
+    ),
+  );
+}
+
+/**
+ * Updates entity metatags with values from the action form.
+ *
+ * @param  object $entity
+ *   The entity housing the metatags to modify.
+ * @param  array $context
+ *   Contextual information passed from the View bulk operation configuration
+ *   form. The updated metatag values for the entity are stored in
+ *   $context['updates'].
+ */
+function metatag_modify_metatags_action($entity, $context) {
+  if (empty($entity)) {
+    drupal_set_message(t("Error while trying to update an entity's metatags."),
+      'warning', FALSE);
+    return;
+  }
+
+  $updates = $context['updates'];
+  $language = $entity->language;
+
+  // Reset metatags to the entity default configs.
+  if ($context['reset_default']) {
+    $instance = $context['entity_type'] . ':' . $entity->type;
+    $entity_defaults = metatag_config_load_with_defaults($instance);
+
+    // Clean up empty values.
+    foreach ($entity_defaults as $name => $tag) {
+      if (empty($tag['value'])) {
+        unset($entity_defaults[$name]);
+      }
+    }
+
+    $entity->metatags[$language] = $entity_defaults;
+  }
+  // Otherwise, we're updating existing values. Ensure that the entity has any
+  // metatags already set. If so then merge the updates to avoid overwriting
+  // existing values that may exist as an array. E.g. robots.
+  elseif (!empty($entity->metatags) && !empty($entity->metatags[$language])) {
+    foreach ($updates as $tag => $value_array) {
+      if (is_array($updates[$tag]['value']) && !empty($entity->metatags[$language][$tag]['value'])) {
+        $entity->metatags[$language][$tag]['value'] = array_merge($entity->metatags[$language][$tag]['value'],
+          array_filter($updates[$tag]['value']));
+      }
+      elseif (!empty($updates[$tag]['value'])) {
+        $entity->metatags[$language][$tag]['value'] = $updates[$tag]['value'];
+      }
+    }
+  }
+  // Otherwise just set the net new tags.
+  else {
+    $entity->metatags[$language] = $updates;
+  }
+
+  entity_save($context['entity_type'], $entity);
+}
+
+/**
+ * The Views bulk operation configuration form for modifying metatags.
+ *
+ * @param  array $context
+ *   Contextual information passed from the View bulk operation configuration
+ *   form.
+ *
+ * @return array
+ *   A form API compatible array.
+ */
+function metatag_modify_metatags_action_form($context) {
+  $form = array(
+    '#entity_type' => $context['entity_type'],
+  );
+
+  // There can be multiple instances being edited here. So the 2nd param passed
+  // here is as generic as possible.
+  metatag_metatags_form($form, 'global');
+
+  // Force the metatags tab to be fully visible and save a click from the user.
+  $form['metatags']['#collapsed'] = FALSE;
+  $form['metatags']['#collapsible'] = FALSE;
+
+  // If we're reseting to the entity default, then we don't need to show the
+  // form fields.
+  $form['metatags']['#states'] = array(
+    'visible' => array(
+      ':input[name="reset_default"]' => array('checked' => FALSE),
+    ),
+  );
+
+  // Add an option to reset selected entities to the default configuration.
+  $form['reset_default'] = array(
+    '#type' => 'checkbox',
+    '#title' => t('Reset to metatag defaults'),
+    '#default_value' => FALSE,
+    '#description' => t('Check to <strong>fully reset all metatags</strong> on
+      the entities being modified to their <a href="@settings">default
+      configuration</a>.', array(
+      '@settings' => url('admin/config/search/metatags'),
+    )),
+  );
+
+  return $form;
+}
+
+/**
+ * Submit handler for metatag_modify_metatags_action_form(). Filters out
+ * the user entered values from the defaults and returns the updated values to
+ * the $context array.
+ *
+ * @return array
+ *   The updated metatag values that is ultimately keyed at $context['updates'].
+ */
+function metatag_modify_metatags_action_submit($form, &$form_state) {
+  $updates = $form_state['values']['metatags'][LANGUAGE_NONE];
+  $defaults = metatag_config_load_with_defaults($form['#entity_type']);
+
+  // Filter out the true updates.
+  metatag_filter_values_from_defaults($updates, $defaults);
+
+  return array(
+    'updates' => $updates,
+    'reset_default' => $form_state['values']['reset_default'],
+  );
+}
+
 /**
  * Load a metatag configuration record with all the defaults merged in.
  *