Changeset 56199 for trunk/src/wp-admin/includes/theme-previews.php

Timestamp:

07/11/2023 05:01:05 AM (17 months ago)

Author:

isabel_brison

Message:

General: add nonce for block theme preview activation.

Adds a nonce so that activation works for block theme previews. Temporary fix until there is a REST API endpoint for activating themes.

Props scruffian, peterwilsoncc, nithins53, nithi22, jomonthomaslobo1, poena, syamraj24, vivekawsm, mrinal013.
Fixes #58712.

File:

• trunk/src/wp-admin/includes/theme-previews.php (modified) (1 diff)

trunk/src/wp-admin/includes/theme-previews.php

@@ -55 +55 @@
     );
 }
+
+/**
+ * Set a JavaScript constant for theme activation.
+ *
+ * Sets the JavaScript global WP_BLOCK_THEME_ACTIVATE_NONCE containing the nonce
+ * required to activate a theme. For use within the site editor.
+ *
+ * @see https://github.com/WordPress/gutenberg/pull/41836.
+ *
+ * @since 6.3.0
+ * @private
+ */
+function wp_block_theme_activate_nonce() {
+    $nonce_handle = 'switch-theme_' . wp_get_theme_preview_path();
+    ?>
+    <script type="text/javascript">
+        window.WP_BLOCK_THEME_ACTIVATE_NONCE = '<?php echo wp_create_nonce( $nonce_handle ); ?>';
+    </script>
+    <?php
+}
+
+// Attaches filters to enable theme previews in the Site Editor.
+if ( ! empty( $_GET['wp_theme_preview'] ) ) {
+    add_filter( 'stylesheet', 'wp_get_theme_preview_path' );
+    add_filter( 'template', 'wp_get_theme_preview_path' );
+    add_action( 'init', 'wp_attach_theme_preview_middleware' );
+    add_action( 'admin_head', 'wp_block_theme_activate_nonce' );
+}