Ticket #22080: add-remove-theme-support-20121016.diff

wp-includes/theme.php

@@ -1350 +1350 @@
                                 define( 'BACKGROUND_IMAGE', $args[0]['default-image'] );
 
                         break;
+                case 'post-thumbnails':
+                        // merge in support for new post types
+                        $support = get_theme_support( 'post-thumbnails' );
+                        if ( is_array( $support ) && is_array( $support[0] ) ) {
+                                // currently enabled for specific post types, merge
+                                if ( is_string( $args[0] ) ) {
+                                        $args[0] = array( $args[0] );
+                                }
+                                $args[0] = array_unique( array_merge( $support[0], $args[0] ) );
+                        }
+                        else if ( $support ) {
+                                // currently enabled for all post types, keep as is
+                                $args = true;
+                        }
+                        break;
         }
 
         $_wp_theme_features[ $feature ] = $args;
@@ -1476 +1491 @@
                         remove_action( 'admin_menu', array( $GLOBALS['custom_background'], 'init' ) );
                         unset( $GLOBALS['custom_background'] );
                         break;
+
+                case 'post-thumbnails':
+                        if ( func_num_args() == 2 ) {
+                                $support = get_theme_support( 'custom-background' );
+                                $post_types = array_slice( func_get_args(), 1 );
+                                switch ( $support ) {
+                                        case true:
+                                                // thumbnails globally enabled, cannot disable for post type
+                                                return new WP_Error( 'remove_theme_support_error', __( 'post-thumbnails are enabled for all post types (try using remove_post_type_support( "my-post-type", "thumbnails" ); instead).' ) );
+                                                break;
+                                        case false:
+                                                // thumbnails globally disabled
+                                                return new WP_Error( 'remove_theme_support_warn', __( 'post-thumbnails are disabled for all post types' ) );
+                                                break;
+                                        default:
+                                                // thumbnails enabled for specific post types
+                                                if ( is_array( $support ) && is_array( $support[0] ) && is_array( $post_types ) ) {
+                                                        $_post_types = $found = array();
+                                                        foreach ( $support[0] as $_post_type ) {
+                                                                if ( in_array( $_post_type, $post_types ) )
+                                                                        $found[] = $_post_type;
+                                                                else
+                                                                        $_post_types[] = $_post_type;
+                                                        }
+                                                        if ( count( $post_types ) != count( $found ) ) {
+                                                                // some post types weren't found
+                                                                $diff = array_diff( $post_types, $found );
+                                                                return new WP_Error( 'remove_theme_support_warn', __( 'post-thumbnails were already disabled for reuested post type(s)' ) , array( 'post-thumbnails' => $post_types, 'already-disabled' => $diff ) );
+                                                        }
+                                                        else {
+                                                                $_wp_theme_features[ 'post-thumbnails' ] = $_post_types;
+                                                                // have to get out early to avoid unsetting the feature entirely
+                                                                return true;
+                                                        }
+                                                }
+                                }
+                        }
+                        break;
         }
 
         unset( $_wp_theme_features[ $feature ] );