Ticket #36666: 36666.2.diff

theme.php

@@ -1832 +1832 @@
  * @since 3.0.0
  * @see add_theme_support()
  * @param string $feature the feature being added
+ * @param array $args Optional arguments
  * @return bool|void Whether feature was removed.
  */
-function remove_theme_support( $feature ) {
+function remove_theme_support( $feature, $args = array() ) {
         // Blacklist: for internal registrations not used directly by themes.
         if ( in_array( $feature, array( 'editor-style', 'widgets', 'menus' ) ) )
                 return false;
 
-        return _remove_theme_support( $feature );
+        return _remove_theme_support( $feature, $args );
 }
-
 /**
  * Do not use. Removes theme support internally, ignorant of the blacklist.
  *
@@ -1853 +1853 @@
  * @global Custom_Background   $custom_background
  *
  * @param string $feature
+ * @param array $args Optional arguments
+ * @return bool|void
  */
-function _remove_theme_support( $feature ) {
+function _remove_theme_support( $feature, $args = array() ) {
         global $_wp_theme_features;
 
+        // Theme support was never added for this feature.
+        if ( ! isset( $_wp_theme_features[ $feature ] ) ) {
+                return false;
+        }
+
+        // Partial removal of theme support, such as a particular post format or thumbnails on a specific post type.
+        if ( $args ) {
+                switch ( $feature ) {
+                        // Remove the passed arguments from this feature, reassigning those that remain.
+                        case 'html5' :
+                        case 'post-formats' :
+                                $kept_args = array_diff( $_wp_theme_features[ $feature ][0], $args );
+
+                                if ( ! empty( $kept_args ) ) {
+                                        $_wp_theme_features[ $feature ][0] = $kept_args;
+                                        return true;
+                                }
+
+                                return false;
+
+                        case 'post-thumbnails' :
+                                if ( is_bool( $_wp_theme_features['post-thumbnails'] ) ) {
+                                        $_wp_theme_features['post-thumbnails'] = array();
+                                        $_wp_theme_features['post-thumbnails'][] = get_post_types_by_support( 'thumbnail' );
+                                }
+
+                                $kept_args = array_diff( $_wp_theme_features[ $feature ][0], $args );
+
+                                if ( ! empty( $kept_args ) ) {
+                                        $_wp_theme_features[ $feature ][0] = $kept_args;
+                                        return true;
+                                }
+
+                                return false;
+
+                        default :
+                                return false;
+                }
+        }
+
+        // Full removal of theme support.
         switch ( $feature ) {
                 case 'custom-header-uploads' :
-                        if ( ! isset( $_wp_theme_features['custom-header'] ) )
+                        if ( ! isset( $_wp_theme_features['custom-header'] ) ) {
                                 return false;
+                        }
                         add_theme_support( 'custom-header', array( 'uploads' => false ) );
+
                         return; // Do not continue - custom-header-uploads no longer exists.
-        }
 
-        if ( ! isset( $_wp_theme_features[ $feature ] ) )
-                return false;
-
-        switch ( $feature ) {
                 case 'custom-header' :
-                        if ( ! did_action( 'wp_loaded' ) )
+                        if ( ! did_action( 'wp_loaded' ) ) {
                                 break;
+                        }
                         $support = get_theme_support( 'custom-header' );
-                        if ( $support[0]['wp-head-callback'] )
+                        if ( $support[0]['wp-head-callback'] ) {
                                 remove_action( 'wp_head', $support[0]['wp-head-callback'] );
+                        }
                         remove_action( 'admin_menu', array( $GLOBALS['custom_image_header'], 'init' ) );
                         unset( $GLOBALS['custom_image_header'] );
                         break;
 
+
                 case 'custom-background' :
-                        if ( ! did_action( 'wp_loaded' ) )
+                        if ( ! did_action( 'wp_loaded' ) ) {
                                 break;
+                        }
                         $support = get_theme_support( 'custom-background' );
                         remove_action( 'wp_head', $support[0]['wp-head-callback'] );
                         remove_action( 'admin_menu', array( $GLOBALS['custom_background'], 'init' ) );