Groups integration: Use groups_get_current_group().

Use `groups_get_current_group()` instead of directly accessing the `$bp` global.

includes/integration-groups.php

@@ -1308,27 +1308,27 @@ function admin_markup() {
 	 * @since 1.0-beta
 	 */
 	function enable_nav_item() {
-		global $bp;
-
 		$enable_nav_item    = false;
 		$this->settings     = bp_docs_get_group_settings( $this->group_id );
 		$this->group_enable = ! empty( $this->settings['group-enable'] ) ? true : false;
+		$current_group      = groups_get_current_group();
 
 		// The nav item should only be enabled when BP Docs is enabled for the group
 		if ( $this->group_enable ) {
-			if ( !empty( $bp->groups->current_group->status ) && $status = $bp->groups->current_group->status ) {
+			if ( ! empty( $current_group->status ) && $status = $current_group->status ) {
 				// Docs in public groups are publicly viewable.
 				if ( 'public' == $status ) {
 					$enable_nav_item = true;
-				} else if ( groups_is_user_member( bp_loggedin_user_id(), $bp->groups->current_group->id ) ) {
+				} else if ( groups_is_user_member( bp_loggedin_user_id(), $current_group->id ) ) {
 					// Docs in private or hidden groups visible only to members
 					$enable_nav_item = true;
 				}
 			}
 
 			// Super admin override
-			if ( is_super_admin() )
+			if ( is_super_admin() ) {
 				$enable_nav_item = true;
+			}
 		}
 
 		return apply_filters( 'bp_docs_groups_enable_nav_item', $enable_nav_item );