Ticket #38738: 38738.diff

src/wp-includes/theme.php

@@ -1400 +1400 @@
  * @return bool True if a custom header is set. False if not.
  */
 function has_custom_header() {
-        if ( has_header_image() || ( is_front_page() && has_header_video() ) ) {
+        if ( has_header_image() || ( has_header_video() && is_header_video_active() ) ) {
                 return true;
         }
 
@@ -1408 +1408 @@
 }
 
 /**
+ * Checks whether the custom header video is eligible to show on the current page.
+ *
+ * @since 1.0.0
+ *
+ * @return bool True if the custom header video should be shown. False if not.
+ */
+function is_header_video_active() {
+        $video_active_cb = get_theme_support( 'custom-header', 'video-active-callback' );
+        if ( empty( $video_active_cb ) || ! is_callable( $video_active_cb ) ) {
+                return true;
+        }
+
+        return call_user_func( $video_active_cb );
+}
+
+/**
  * Retrieve the markup for a custom header.
  *
  * @since 4.7.0
@@ -1436 +1452 @@
         }
         echo $custom_header;
 
-        if ( has_header_video() && is_front_page() ) {
+        if ( has_header_video() && is_header_video_active() ) {
                 wp_enqueue_script( 'wp-custom-header' );
                 wp_localize_script( 'wp-custom-header', '_wpCustomHeaderSettings', get_header_video_settings() );
         }
@@ -2048 +2064 @@
                                 'admin-head-callback' => '',
                                 'admin-preview-callback' => '',
                                 'video' => false,
+                                'video-active-callback' => 'is_front_page',
                         );
 
                         $jit = isset( $args[0]['__jit'] );