Changeset 39227 for trunk/src/wp-includes/theme.php

Timestamp:

11/14/2016 06:40:08 PM (4 years ago)

Author:

westonruter

Message:

Customize: Use selective refresh for custom header changes when possible.

• Use postMessage transport for header image settings by default when video headers are supported, and thus the_custom_header_markup() will necessarily be used (and thus a selective refresh partial will be available).
• Ensure that the_custom_header_markup() always outputs a container element in the customizer preview even if the header is empty.
• Ensure that edit shortcut appearing for custom header does not get positioned off-screen.

Props bradyvercher, westonruter.
See #38639.
Fixes #38737.

File:

• trunk/src/wp-includes/theme.php (modified) (2 diffs)

trunk/src/wp-includes/theme.php

@@ -1411 +1411 @@
  * Retrieve the markup for a custom header.
  *
+ * The container div will always be returned in the Customizer preview.
+ *
  * @since 4.7.0
  *
- * @return string|false The markup for a custom header on success. False if not.
+ * @return string The markup for a custom header on success.
  */
 function get_custom_header_markup() {
-    if ( ! has_custom_header() ) {
-        return false;
+    if ( ! has_custom_header() && ! is_customize_preview() ) {
+        return '';
     }
 
@@ -1429 +1431 @@
  * Print the markup for a custom header.
  *
+ * A container div will always be printed in the Customizer preview.
+ *
  * @since 4.7.0
  */
 function the_custom_header_markup() {
-    if ( ! $custom_header = get_custom_header_markup() ) {
+    $custom_header = get_custom_header_markup();
+    if ( empty( $custom_header ) ) {
         return;
     }
+
     echo $custom_header;
 
-    if ( has_header_video() && is_front_page() ) {
+    if ( is_front_page() && ( has_header_video() || is_customize_preview() ) ) {
         wp_enqueue_script( 'wp-custom-header' );
         wp_localize_script( 'wp-custom-header', '_wpCustomHeaderSettings', get_header_video_settings() );