WordPress 4.0
[autoinstalls/wordpress.git] / wp-includes / theme.php
index 00b3c39d1f49eca50a892d2ed59f9a475d6ced43..85119eda1eaa3b9480afe51ca4d03ac08981f2e0 100644 (file)
@@ -137,7 +137,7 @@ function is_child_theme() {
  * The theme name that the administrator has currently set the front end theme
  * as.
  *
- * For all extensive purposes, the template name and the stylesheet name are
+ * For all intents and purposes, the template name and the stylesheet name are
  * going to be the same for most cases.
  *
  * @since 1.5.0
@@ -370,11 +370,19 @@ function register_theme_directory( $directory ) {
                // Try prepending as the theme directory could be relative to the content directory
                $directory = WP_CONTENT_DIR . '/' . $directory;
                // If this directory does not exist, return and do not register
-               if ( ! file_exists( $directory ) )
+               if ( ! file_exists( $directory ) ) {
                        return false;
+               }
        }
 
-       $wp_theme_directories[] = $directory;
+       if ( ! is_array( $wp_theme_directories ) ) {
+               $wp_theme_directories = array();
+       }
+
+       $untrailed = untrailingslashit( $directory );
+       if ( ! empty( $untrailed ) && ! in_array( $untrailed, $wp_theme_directories ) ) {
+               $wp_theme_directories[] = $untrailed;
+       }
 
        return true;
 }
@@ -1394,6 +1402,54 @@ function remove_editor_styles() {
        return true;
 }
 
+/**
+ * Retrieve any registered editor stylesheets
+ *
+ * @since 4.0.0
+ *
+ * @global $editor_styles Registered editor stylesheets
+ *
+ * @return array If registered, a list of editor stylesheet URLs.
+ */
+function get_editor_stylesheets() {
+       $stylesheets = array();
+       // load editor_style.css if the current theme supports it
+       if ( ! empty( $GLOBALS['editor_styles'] ) && is_array( $GLOBALS['editor_styles'] ) ) {
+               $editor_styles = $GLOBALS['editor_styles'];
+
+               $editor_styles = array_unique( array_filter( $editor_styles ) );
+               $style_uri = get_stylesheet_directory_uri();
+               $style_dir = get_stylesheet_directory();
+
+               // Support externally referenced styles (like, say, fonts).
+               foreach ( $editor_styles as $key => $file ) {
+                       if ( preg_match( '~^(https?:)?//~', $file ) ) {
+                               $stylesheets[] = esc_url_raw( $file );
+                               unset( $editor_styles[ $key ] );
+                       }
+               }
+
+               // Look in a parent theme first, that way child theme CSS overrides.
+               if ( is_child_theme() ) {
+                       $template_uri = get_template_directory_uri();
+                       $template_dir = get_template_directory();
+
+                       foreach ( $editor_styles as $key => $file ) {
+                               if ( $file && file_exists( "$template_dir/$file" ) ) {
+                                       $stylesheets[] = "$template_uri/$file";
+                               }
+                       }
+               }
+
+               foreach ( $editor_styles as $file ) {
+                       if ( $file && file_exists( "$style_dir/$file" ) ) {
+                               $stylesheets[] = "$style_uri/$file";
+                       }
+               }
+       }
+       return $stylesheets;
+}
+
 /**
  * Allows a theme to register its support of a certain feature
  *
@@ -1437,7 +1493,6 @@ function add_theme_support( $feature ) {
 
                case 'custom-header-uploads' :
                        return add_theme_support( 'custom-header', array( 'uploads' => true ) );
-                       break;
 
                case 'custom-header' :
                        if ( ! is_array( $args ) )
@@ -1618,10 +1673,9 @@ function get_theme_support( $feature ) {
                        if ( isset( $_wp_theme_features[ $feature ][0][ $args[0] ] ) )
                                return $_wp_theme_features[ $feature ][0][ $args[0] ];
                        return false;
-                       break;
+
                default :
                        return $_wp_theme_features[ $feature ];
-                       break;
        }
 }
 
@@ -1720,7 +1774,6 @@ function current_theme_supports( $feature ) {
                                return true;
                        $content_type = $args[0];
                        return in_array( $content_type, $_wp_theme_features[$feature][0] );
-                       break;
 
                case 'html5':
                case 'post-formats':
@@ -1731,7 +1784,6 @@ function current_theme_supports( $feature ) {
 
                        $type = $args[0];
                        return in_array( $type, $_wp_theme_features[$feature][0] );
-                       break;
 
                case 'custom-header':
                case 'custom-background' :
@@ -1739,7 +1791,6 @@ function current_theme_supports( $feature ) {
                        // an array to add_theme_support()
                        $header_support = $args[0];
                        return ( isset( $_wp_theme_features[$feature][0][$header_support] ) && $_wp_theme_features[$feature][0][$header_support] );
-                       break;
        }
 
        /**
@@ -1879,6 +1930,9 @@ function _wp_customize_loader_settings() {
                'url'           => esc_url( admin_url( 'customize.php' ) ),
                'isCrossDomain' => $cross_domain,
                'browser'       => $browser,
+               'l10n'          => array(
+                       'saveAlert' => __( 'The changes you made will be lost if you navigate away from this page.' ),
+               ),
        );
 
        $script = 'var _wpCustomizeLoaderSettings = ' . json_encode( $settings ) . ';';
@@ -1943,3 +1997,18 @@ function wp_customize_support_script() {
        </script>
        <?php
 }
+
+/**
+ * Whether the site is being previewed in the Customizer.
+ *
+ * @since 4.0.0
+ *
+ * @global WP_Customize_Manager $wp_customize Customizer instance.
+ *
+ * @return bool True if the site is being previewed in the Customizer, false otherwise.
+ */
+function is_customize_preview() {
+       global $wp_customize;
+
+       return is_a( $wp_customize, 'WP_Customize_Manager' ) && $wp_customize->is_preview();
+}