Changeset 31707 for trunk/src/wp-includes/class-wp-customize-setting.php

Timestamp:

03/10/2015 11:04:12 PM (10 years ago)

Author:

ocean90

Message:

Customizer: Return the original value when filtering theme mods/options and the current blog has changed.

props westonruter.
fixes #31428.

File:

• trunk/src/wp-includes/class-wp-customize-setting.php (modified) (4 diffs)

trunk/src/wp-includes/class-wp-customize-setting.php

@@ -115 +115 @@
     }
 
+    /**
+     * The ID for the current blog when the preview() method was called.
+     *
+     * @since 4.2.0
+     * @var int
+     */
+    protected $_previewed_blog_id;
+
+    /**
+     * Return true if the current blog is not the same as the previewed blog.
+     *
+     * @since 4.2.0
+     * @return bool|null Returns null if preview() has not been called yet.
+     */
+    public function is_current_blog_previewed() {
+        if ( ! isset( $this->_previewed_blog_id ) ) {
+            return null;
+        }
+        return ( get_current_blog_id() === $this->_previewed_blog_id );
+    }
+
+    /**
+     * Original non-previewed value stored by the preview method.
+     *
+     * @see WP_Customize_Setting::preview()
+     * @since 4.1.1
+     * @var mixed
+     */
     protected $_original_value;
 
@@ -125 +153 @@
         if ( ! isset( $this->_original_value ) ) {
             $this->_original_value = $this->value();
+        }
+        if ( ! isset( $this->_previewed_blog_id ) ) {
+            $this->_previewed_blog_id = get_current_blog_id();
         }
 
@@ -170 +201 @@
      * Callback function to filter the theme mods and options.
      *
+     * If switch_to_blog() was called after the preview() method, and the current
+     * blog is now not the same blog, then this method does a no-op and returns
+     * the original value.
+     *
      * @since 3.4.0
      * @uses WP_Customize_Setting::multidimensional_replace()
@@ -177 +212 @@
      */
     public function _preview_filter( $original ) {
+        if ( ! $this->is_current_blog_previewed() ) {
+            return $original;
+        }
+
         $undefined = new stdClass(); // symbol hack
         $post_value = $this->post_value( $undefined );