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+<?php
+
+/**
+ * @file
+ * Hooks provided by the Menu module.
+ */
+
+/**
+ * @addtogroup hooks
+ * @{
+ */
+
+/**
+ * Respond to a custom menu creation.
+ *
+ * This hook is used to notify modules that a custom menu has been created.
+ * Contributed modules may use the information to perform actions based on the
+ * information entered into the menu system.
+ *
+ * @param $menu
+ * An array representing a custom menu:
+ * - menu_name: The unique name of the custom menu.
+ * - title: The human readable menu title.
+ * - description: The custom menu description.
+ *
+ * @see hook_menu_update()
+ * @see hook_menu_delete()
+ */
+function hook_menu_insert($menu) {
+ // For example, we track available menus in a variable.
+ $my_menus = variable_get('my_module_menus', array());
+ $my_menus[$menu['menu_name']] = $menu['menu_name'];
+ variable_set('my_module_menus', $my_menus);
+}
+
+/**
+ * Respond to a custom menu update.
+ *
+ * This hook is used to notify modules that a custom menu has been updated.
+ * Contributed modules may use the information to perform actions based on the
+ * information entered into the menu system.
+ *
+ * @param $menu
+ * An array representing a custom menu:
+ * - menu_name: The unique name of the custom menu.
+ * - title: The human readable menu title.
+ * - description: The custom menu description.
+ * - old_name: The current 'menu_name'. Note that internal menu names cannot
+ * be changed after initial creation.
+ *
+ * @see hook_menu_insert()
+ * @see hook_menu_delete()
+ */
+function hook_menu_update($menu) {
+ // For example, we track available menus in a variable.
+ $my_menus = variable_get('my_module_menus', array());
+ $my_menus[$menu['menu_name']] = $menu['menu_name'];
+ variable_set('my_module_menus', $my_menus);
+}
+
+/**
+ * Respond to a custom menu deletion.
+ *
+ * This hook is used to notify modules that a custom menu along with all links
+ * contained in it (if any) has been deleted. Contributed modules may use the
+ * information to perform actions based on the information entered into the menu
+ * system.
+ *
+ * @param $menu
+ * An array representing a custom menu:
+ * - menu_name: The unique name of the custom menu.
+ * - title: The human readable menu title.
+ * - description: The custom menu description.
+ *
+ * @see hook_menu_insert()
+ * @see hook_menu_update()
+ */
+function hook_menu_delete($menu) {
+ // Delete the record from our variable.
+ $my_menus = variable_get('my_module_menus', array());
+ unset($my_menus[$menu['menu_name']]);
+ variable_set('my_module_menus', $my_menus);
+}
+
+/**
+ * @} End of "addtogroup hooks".
+ */