Changeset 12132

Timestamp:

11/01/2009 05:27:39 AM (15 years ago)

Author:

markjaquith

Message:

Introducing add_theme_support(feature) and current_theme_supports(feature) for announcing and checking theme support for various features. Implement it for post/page thumbanils, hiding UI if not supported.

Location:

trunk

Files:

• wp-admin/edit-form-advanced.php (modified) (1 diff)
• wp-admin/edit-page-form.php (modified) (1 diff)
• wp-includes/theme.php (modified) (1 diff)

trunk/wp-admin/edit-form-advanced.php

@@ -99 +99 @@
 
 add_meta_box('categorydiv', __('Categories'), 'post_categories_meta_box', 'post', 'side', 'core');
-add_meta_box('postthumbnaildiv', __('Post Thumbnail'), 'post_thumbnail_meta_box', 'post', 'side', 'low');
+if ( current_theme_supports( 'post-thumbnails' ) )
+    add_meta_box('postthumbnaildiv', __('Post Thumbnail'), 'post_thumbnail_meta_box', 'post', 'side', 'low');
 add_meta_box('postexcerpt', __('Excerpt'), 'post_excerpt_meta_box', 'post', 'normal', 'core');
 add_meta_box('trackbacksdiv', __('Send Trackbacks'), 'post_trackback_meta_box', 'post', 'normal', 'core');

trunk/wp-admin/edit-page-form.php

@@ -81 +81 @@
 add_meta_box('commentstatusdiv', __('Discussion'), 'post_comment_status_meta_box', 'page', 'normal', 'core');
 add_meta_box('slugdiv', __('Page Slug'), 'post_slug_meta_box', 'page', 'normal', 'core');
-add_meta_box('postthumbnaildiv', __('Post Thumbnail'), 'post_thumbnail_meta_box', 'page', 'side', 'low');
+if ( current_theme_supports( 'post-thumbnails' ) )
+    add_meta_box('postthumbnaildiv', __('Page Thumbnail'), 'post_thumbnail_meta_box', 'page', 'side', 'low');
 
 $authors = get_editable_user_ids( $current_user->id, true, 'page' ); // TODO: ROLE SYSTEM

trunk/wp-includes/theme.php

@@ -1304 +1304 @@
 }
 
+/**
+ * Allows a theme to register its support of a certain feature
+ *
+ * @author Mark Jaquith
+ * @since 2.9
+ * @param string $feature the feature being added
+ */
+function add_theme_support( $feature ) {
+    global $_wp_theme_features;
+    $_wp_theme_features[$feature] = true;
+}
+
+/**
+ * Checks a theme's support for a given feature
+ *
+ * @author Mark Jaquith
+ * @since 2.9
+ * @param string $feature the feature being checked
+ * @return boolean
+ */
+
+function current_theme_supports( $feature ) {
+    global $_wp_theme_features;
+    return ( isset( $_wp_theme_features[$feature] ) && $_wp_theme_features[$feature] );
+}
+
 ?>