Changeset 39209 for trunk/src/wp-includes/theme.php

Timestamp:

11/13/2016 02:42:04 AM (8 years ago)

Author:

westonruter

Message:

Customize: Improve extensibility of Custom CSS.

• Add customize_value_custom_css filter to WP_Customize_Custom_CSS::value() method.
• Introduce customize_update_custom_css_post_content_args filter in WP_Customize_Custom_CSS::update() method.
• Make clear that wp_get_custom_css() and wp_get_custom_css filter are specifically for obtaining the value to render/display. Eliminate use of wp_get_custom_css() when getting the setting value. Use the underlying post_value directly when is_previewed.
• Move anonymous functions handing JS previewing for custom_logo, custom_css, and background into named functions on the wp.customize.settingPreviewHandlers to allow plugins to override/extend preview logic.
• Update _custom_background_cb to always print a style tag wen in the customizer preview, and update background preview logic to replace existing style element instead of appending a new style to the head so that background changes don't unexpectedly override any Custom CSS in the preview's stylesheet cascade.

Props westonruter, georgestephanis.
See #22058.
Fixes #38672.

File:

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

trunk/src/wp-includes/theme.php

@@ -1501 +1501 @@
     }
 
-    if ( ! $background && ! $color )
+    if ( ! $background && ! $color ) {
+        if ( is_customize_preview() ) {
+            echo '<style type="text/css" id="custom-background-css"></style>';
+        }
         return;
+    }
 
     $style = $color ? "background-color: #$color;" : '';
@@ -1622 +1626 @@
 
 /**
- * Fetch the saved Custom CSS content.
+ * Fetch the saved Custom CSS content for rendering.
  *
  * @since 4.7.0