514 lines
19 KiB
PHP
514 lines
19 KiB
PHP
<?php
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/**
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* TwentyTen functions and definitions
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*
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* Sets up the theme and provides some helper functions. Some helper functions
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* are used in the theme as custom template tags. Others are attached to action and
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* filter hooks in WordPress to change core functionality.
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*
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* The first function, twentyten_setup(), sets up the theme by registering support
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* for various features in WordPress, such as post thumbnails, navigation menus, and the like.
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*
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* When using a child theme (see http://codex.wordpress.org/Theme_Development and
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* http://codex.wordpress.org/Child_Themes), you can override certain functions
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* (those wrapped in a function_exists() call) by defining them first in your child theme's
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* functions.php file. The child theme's functions.php file is included before the parent
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* theme's file, so the child theme functions would be used.
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*
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* Functions that are not pluggable (not wrapped in function_exists()) are instead attached
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* to a filter or action hook. The hook can be removed by using remove_action() or
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* remove_filter() and you can attach your own function to the hook.
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*
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* We can remove the parent theme's hook only after it is attached, which means we need to
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* wait until setting up the child theme:
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*
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* <code>
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* add_action( 'after_setup_theme', 'my_child_theme_setup' );
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* function my_child_theme_setup() {
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* // We are providing our own filter for excerpt_length (or using the unfiltered value)
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* remove_filter( 'excerpt_length', 'twentyten_excerpt_length' );
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* ...
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* }
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* </code>
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*
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* For more information on hooks, actions, and filters, see http://codex.wordpress.org/Plugin_API.
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*
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* @package WordPress
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* @subpackage Twenty_Ten
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* @since Twenty Ten 1.0
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*/
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/**
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* Set the content width based on the theme's design and stylesheet.
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*
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* Used to set the width of images and content. Should be equal to the width the theme
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* is designed for, generally via the style.css stylesheet.
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*/
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if ( ! isset( $content_width ) )
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$content_width = 640;
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/** Tell WordPress to run twentyten_setup() when the 'after_setup_theme' hook is run. */
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add_action( 'after_setup_theme', 'twentyten_setup' );
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if ( ! function_exists( 'twentyten_setup' ) ):
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/**
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* Sets up theme defaults and registers support for various WordPress features.
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*
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* Note that this function is hooked into the after_setup_theme hook, which runs
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* before the init hook. The init hook is too late for some features, such as indicating
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* support post thumbnails.
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*
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* To override twentyten_setup() in a child theme, add your own twentyten_setup to your child theme's
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* functions.php file.
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*
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* @uses add_theme_support() To add support for post thumbnails, custom headers and backgrounds, and automatic feed links.
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* @uses register_nav_menus() To add support for navigation menus.
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* @uses add_editor_style() To style the visual editor.
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* @uses load_theme_textdomain() For translation/localization support.
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* @uses register_default_headers() To register the default custom header images provided with the theme.
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* @uses set_post_thumbnail_size() To set a custom post thumbnail size.
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*
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* @since Twenty Ten 1.0
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*/
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function twentyten_setup() {
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// This theme styles the visual editor with editor-style.css to match the theme style.
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add_editor_style();
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// Post Format support. You can also use the legacy "gallery" or "asides" (note the plural) categories.
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add_theme_support( 'post-formats', array( 'aside', 'gallery' ) );
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// This theme uses post thumbnails
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add_theme_support( 'post-thumbnails' );
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// Add default posts and comments RSS feed links to head
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add_theme_support( 'automatic-feed-links' );
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// Make theme available for translation
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// Translations can be filed in the /languages/ directory
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load_theme_textdomain( 'twentyten', get_template_directory() . '/languages' );
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// This theme uses wp_nav_menu() in one location.
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register_nav_menus( array(
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'primary' => __( 'Primary Navigation', 'twentyten' ),
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) );
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// This theme allows users to set a custom background.
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add_theme_support( 'custom-background', array(
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// Let WordPress know what our default background color is.
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'default-color' => 'f1f1f1',
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) );
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// The custom header business starts here.
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$custom_header_support = array(
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// The default image to use.
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// The %s is a placeholder for the theme template directory URI.
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'default-image' => '%s/images/headers/path.jpg',
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// The height and width of our custom header.
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'width' => apply_filters( 'twentyten_header_image_width', 940 ),
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'height' => apply_filters( 'twentyten_header_image_height', 198 ),
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// Support flexible heights.
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'flex-height' => true,
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// Don't support text inside the header image.
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'header-text' => false,
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// Callback for styling the header preview in the admin.
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'admin-head-callback' => 'twentyten_admin_header_style',
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);
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add_theme_support( 'custom-header', $custom_header_support );
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if ( ! function_exists( 'get_custom_header' ) ) {
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// This is all for compatibility with versions of WordPress prior to 3.4.
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define( 'HEADER_TEXTCOLOR', '' );
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define( 'NO_HEADER_TEXT', true );
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define( 'HEADER_IMAGE', $custom_header_support['default-image'] );
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define( 'HEADER_IMAGE_WIDTH', $custom_header_support['width'] );
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define( 'HEADER_IMAGE_HEIGHT', $custom_header_support['height'] );
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add_custom_image_header( '', $custom_header_support['admin-head-callback'] );
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add_custom_background();
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}
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// We'll be using post thumbnails for custom header images on posts and pages.
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// We want them to be 940 pixels wide by 198 pixels tall.
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// Larger images will be auto-cropped to fit, smaller ones will be ignored. See header.php.
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set_post_thumbnail_size( $custom_header_support['width'], $custom_header_support['height'], true );
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// ... and thus ends the custom header business.
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// Default custom headers packaged with the theme. %s is a placeholder for the theme template directory URI.
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register_default_headers( array(
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'berries' => array(
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'url' => '%s/images/headers/berries.jpg',
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'thumbnail_url' => '%s/images/headers/berries-thumbnail.jpg',
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/* translators: header image description */
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'description' => __( 'Berries', 'twentyten' )
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),
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'cherryblossom' => array(
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'url' => '%s/images/headers/cherryblossoms.jpg',
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'thumbnail_url' => '%s/images/headers/cherryblossoms-thumbnail.jpg',
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/* translators: header image description */
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'description' => __( 'Cherry Blossoms', 'twentyten' )
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),
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'concave' => array(
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'url' => '%s/images/headers/concave.jpg',
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'thumbnail_url' => '%s/images/headers/concave-thumbnail.jpg',
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/* translators: header image description */
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'description' => __( 'Concave', 'twentyten' )
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),
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'fern' => array(
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'url' => '%s/images/headers/fern.jpg',
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'thumbnail_url' => '%s/images/headers/fern-thumbnail.jpg',
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/* translators: header image description */
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'description' => __( 'Fern', 'twentyten' )
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),
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'forestfloor' => array(
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'url' => '%s/images/headers/forestfloor.jpg',
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'thumbnail_url' => '%s/images/headers/forestfloor-thumbnail.jpg',
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/* translators: header image description */
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'description' => __( 'Forest Floor', 'twentyten' )
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),
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'inkwell' => array(
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'url' => '%s/images/headers/inkwell.jpg',
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'thumbnail_url' => '%s/images/headers/inkwell-thumbnail.jpg',
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/* translators: header image description */
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'description' => __( 'Inkwell', 'twentyten' )
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),
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'path' => array(
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'url' => '%s/images/headers/path.jpg',
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'thumbnail_url' => '%s/images/headers/path-thumbnail.jpg',
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/* translators: header image description */
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'description' => __( 'Path', 'twentyten' )
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),
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'sunset' => array(
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'url' => '%s/images/headers/sunset.jpg',
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'thumbnail_url' => '%s/images/headers/sunset-thumbnail.jpg',
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/* translators: header image description */
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'description' => __( 'Sunset', 'twentyten' )
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)
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) );
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}
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endif;
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if ( ! function_exists( 'twentyten_admin_header_style' ) ) :
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/**
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* Styles the header image displayed on the Appearance > Header admin panel.
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*
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* Referenced via add_custom_image_header() in twentyten_setup().
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*
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* @since Twenty Ten 1.0
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*/
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function twentyten_admin_header_style() {
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?>
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<style type="text/css">
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/* Shows the same border as on front end */
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#headimg {
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border-bottom: 1px solid #000;
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border-top: 4px solid #000;
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}
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/* If header-text was supported, you would style the text with these selectors:
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#headimg #name { }
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#headimg #desc { }
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*/
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</style>
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<?php
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}
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endif;
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/**
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* Get our wp_nav_menu() fallback, wp_page_menu(), to show a home link.
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*
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* To override this in a child theme, remove the filter and optionally add
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* your own function tied to the wp_page_menu_args filter hook.
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*
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* @since Twenty Ten 1.0
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*/
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function twentyten_page_menu_args( $args ) {
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$args['show_home'] = true;
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return $args;
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}
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add_filter( 'wp_page_menu_args', 'twentyten_page_menu_args' );
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/**
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* Sets the post excerpt length to 40 characters.
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*
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* To override this length in a child theme, remove the filter and add your own
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* function tied to the excerpt_length filter hook.
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*
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* @since Twenty Ten 1.0
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* @return int
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*/
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function twentyten_excerpt_length( $length ) {
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return 40;
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}
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add_filter( 'excerpt_length', 'twentyten_excerpt_length' );
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/**
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* Returns a "Continue Reading" link for excerpts
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*
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* @since Twenty Ten 1.0
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* @return string "Continue Reading" link
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*/
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function twentyten_continue_reading_link() {
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return ' <a href="'. get_permalink() . '">' . __( 'Continue reading <span class="meta-nav">→</span>', 'twentyten' ) . '</a>';
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}
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/**
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* Replaces "[...]" (appended to automatically generated excerpts) with an ellipsis and twentyten_continue_reading_link().
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*
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* To override this in a child theme, remove the filter and add your own
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* function tied to the excerpt_more filter hook.
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*
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* @since Twenty Ten 1.0
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* @return string An ellipsis
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*/
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function twentyten_auto_excerpt_more( $more ) {
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return ' …' . twentyten_continue_reading_link();
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}
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add_filter( 'excerpt_more', 'twentyten_auto_excerpt_more' );
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/**
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* Adds a pretty "Continue Reading" link to custom post excerpts.
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*
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* To override this link in a child theme, remove the filter and add your own
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* function tied to the get_the_excerpt filter hook.
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*
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* @since Twenty Ten 1.0
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* @return string Excerpt with a pretty "Continue Reading" link
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*/
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function twentyten_custom_excerpt_more( $output ) {
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if ( has_excerpt() && ! is_attachment() ) {
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$output .= twentyten_continue_reading_link();
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}
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return $output;
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}
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add_filter( 'get_the_excerpt', 'twentyten_custom_excerpt_more' );
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/**
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* Remove inline styles printed when the gallery shortcode is used.
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*
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* Galleries are styled by the theme in Twenty Ten's style.css. This is just
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* a simple filter call that tells WordPress to not use the default styles.
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*
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* @since Twenty Ten 1.2
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*/
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add_filter( 'use_default_gallery_style', '__return_false' );
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/**
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* Deprecated way to remove inline styles printed when the gallery shortcode is used.
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*
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* This function is no longer needed or used. Use the use_default_gallery_style
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* filter instead, as seen above.
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*
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* @since Twenty Ten 1.0
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* @deprecated Deprecated in Twenty Ten 1.2 for WordPress 3.1
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*
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* @return string The gallery style filter, with the styles themselves removed.
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*/
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function twentyten_remove_gallery_css( $css ) {
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return preg_replace( "#<style type='text/css'>(.*?)</style>#s", '', $css );
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}
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// Backwards compatibility with WordPress 3.0.
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if ( version_compare( $GLOBALS['wp_version'], '3.1', '<' ) )
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add_filter( 'gallery_style', 'twentyten_remove_gallery_css' );
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if ( ! function_exists( 'twentyten_comment' ) ) :
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/**
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* Template for comments and pingbacks.
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*
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* To override this walker in a child theme without modifying the comments template
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* simply create your own twentyten_comment(), and that function will be used instead.
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*
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* Used as a callback by wp_list_comments() for displaying the comments.
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*
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* @since Twenty Ten 1.0
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*/
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function twentyten_comment( $comment, $args, $depth ) {
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$GLOBALS['comment'] = $comment;
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switch ( $comment->comment_type ) :
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case '' :
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?>
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<li <?php comment_class(); ?> id="li-comment-<?php comment_ID(); ?>">
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<div id="comment-<?php comment_ID(); ?>">
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<div class="comment-author vcard">
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<?php echo get_avatar( $comment, 40 ); ?>
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<?php printf( __( '%s <span class="says">says:</span>', 'twentyten' ), sprintf( '<cite class="fn">%s</cite>', get_comment_author_link() ) ); ?>
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</div><!-- .comment-author .vcard -->
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<?php if ( $comment->comment_approved == '0' ) : ?>
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<em class="comment-awaiting-moderation"><?php _e( 'Your comment is awaiting moderation.', 'twentyten' ); ?></em>
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<br />
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<?php endif; ?>
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<div class="comment-meta commentmetadata"><a href="<?php echo esc_url( get_comment_link( $comment->comment_ID ) ); ?>">
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<?php
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/* translators: 1: date, 2: time */
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printf( __( '%1$s at %2$s', 'twentyten' ), get_comment_date(), get_comment_time() ); ?></a><?php edit_comment_link( __( '(Edit)', 'twentyten' ), ' ' );
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?>
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</div><!-- .comment-meta .commentmetadata -->
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<div class="comment-body"><?php comment_text(); ?></div>
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<div class="reply">
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<?php comment_reply_link( array_merge( $args, array( 'depth' => $depth, 'max_depth' => $args['max_depth'] ) ) ); ?>
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</div><!-- .reply -->
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</div><!-- #comment-## -->
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<?php
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break;
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case 'pingback' :
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case 'trackback' :
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?>
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<li class="post pingback">
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<p><?php _e( 'Pingback:', 'twentyten' ); ?> <?php comment_author_link(); ?><?php edit_comment_link( __( '(Edit)', 'twentyten' ), ' ' ); ?></p>
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<?php
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break;
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endswitch;
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}
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endif;
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/**
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* Register widgetized areas, including two sidebars and four widget-ready columns in the footer.
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*
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* To override twentyten_widgets_init() in a child theme, remove the action hook and add your own
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* function tied to the init hook.
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*
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* @since Twenty Ten 1.0
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* @uses register_sidebar
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*/
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function twentyten_widgets_init() {
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// Area 1, located at the top of the sidebar.
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register_sidebar( array(
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'name' => __( 'Primary Widget Area', 'twentyten' ),
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'id' => 'primary-widget-area',
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'description' => __( 'The primary widget area', 'twentyten' ),
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'before_widget' => '<li id="%1$s" class="widget-container %2$s">',
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'after_widget' => '</li>',
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'before_title' => '<h3 class="widget-title">',
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'after_title' => '</h3>',
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) );
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// Area 2, located below the Primary Widget Area in the sidebar. Empty by default.
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register_sidebar( array(
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'name' => __( 'Secondary Widget Area', 'twentyten' ),
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'id' => 'secondary-widget-area',
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'description' => __( 'The secondary widget area', 'twentyten' ),
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'before_widget' => '<li id="%1$s" class="widget-container %2$s">',
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'after_widget' => '</li>',
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'before_title' => '<h3 class="widget-title">',
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'after_title' => '</h3>',
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) );
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// Area 3, located in the footer. Empty by default.
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register_sidebar( array(
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'name' => __( 'First Footer Widget Area', 'twentyten' ),
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'id' => 'first-footer-widget-area',
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'description' => __( 'The first footer widget area', 'twentyten' ),
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'before_widget' => '<li id="%1$s" class="widget-container %2$s">',
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'after_widget' => '</li>',
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'before_title' => '<h3 class="widget-title">',
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'after_title' => '</h3>',
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) );
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// Area 4, located in the footer. Empty by default.
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register_sidebar( array(
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'name' => __( 'Second Footer Widget Area', 'twentyten' ),
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'id' => 'second-footer-widget-area',
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'description' => __( 'The second footer widget area', 'twentyten' ),
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'before_widget' => '<li id="%1$s" class="widget-container %2$s">',
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'after_widget' => '</li>',
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'before_title' => '<h3 class="widget-title">',
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'after_title' => '</h3>',
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) );
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// Area 5, located in the footer. Empty by default.
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register_sidebar( array(
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'name' => __( 'Third Footer Widget Area', 'twentyten' ),
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'id' => 'third-footer-widget-area',
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'description' => __( 'The third footer widget area', 'twentyten' ),
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'before_widget' => '<li id="%1$s" class="widget-container %2$s">',
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'after_widget' => '</li>',
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'before_title' => '<h3 class="widget-title">',
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'after_title' => '</h3>',
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) );
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// Area 6, located in the footer. Empty by default.
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register_sidebar( array(
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'name' => __( 'Fourth Footer Widget Area', 'twentyten' ),
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'id' => 'fourth-footer-widget-area',
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'description' => __( 'The fourth footer widget area', 'twentyten' ),
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'before_widget' => '<li id="%1$s" class="widget-container %2$s">',
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'after_widget' => '</li>',
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'before_title' => '<h3 class="widget-title">',
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'after_title' => '</h3>',
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) );
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}
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/** Register sidebars by running twentyten_widgets_init() on the widgets_init hook. */
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add_action( 'widgets_init', 'twentyten_widgets_init' );
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/**
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* Removes the default styles that are packaged with the Recent Comments widget.
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*
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* To override this in a child theme, remove the filter and optionally add your own
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* function tied to the widgets_init action hook.
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*
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* This function uses a filter (show_recent_comments_widget_style) new in WordPress 3.1
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* to remove the default style. Using Twenty Ten 1.2 in WordPress 3.0 will show the styles,
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* but they won't have any effect on the widget in default Twenty Ten styling.
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*
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* @since Twenty Ten 1.0
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*/
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function twentyten_remove_recent_comments_style() {
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add_filter( 'show_recent_comments_widget_style', '__return_false' );
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}
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add_action( 'widgets_init', 'twentyten_remove_recent_comments_style' );
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if ( ! function_exists( 'twentyten_posted_on' ) ) :
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/**
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* Prints HTML with meta information for the current post-date/time and author.
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*
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* @since Twenty Ten 1.0
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*/
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function twentyten_posted_on() {
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printf( __( '<span class="%1$s">Posted on</span> %2$s <span class="meta-sep">by</span> %3$s', 'twentyten' ),
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'meta-prep meta-prep-author',
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sprintf( '<a href="%1$s" title="%2$s" rel="bookmark"><span class="entry-date">%3$s</span></a>',
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get_permalink(),
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esc_attr( get_the_time() ),
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get_the_date()
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),
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sprintf( '<span class="author vcard"><a class="url fn n" href="%1$s" title="%2$s">%3$s</a></span>',
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get_author_posts_url( get_the_author_meta( 'ID' ) ),
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esc_attr( sprintf( __( 'View all posts by %s', 'twentyten' ), get_the_author() ) ),
|
|
get_the_author()
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|
)
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|
);
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|
}
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endif;
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|
|
|
if ( ! function_exists( 'twentyten_posted_in' ) ) :
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|
/**
|
|
* Prints HTML with meta information for the current post (category, tags and permalink).
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|
*
|
|
* @since Twenty Ten 1.0
|
|
*/
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|
function twentyten_posted_in() {
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|
// Retrieves tag list of current post, separated by commas.
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|
$tag_list = get_the_tag_list( '', ', ' );
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|
if ( $tag_list ) {
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|
$posted_in = __( 'This entry was posted in %1$s and tagged %2$s. Bookmark the <a href="%3$s" title="Permalink to %4$s" rel="bookmark">permalink</a>.', 'twentyten' );
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} elseif ( is_object_in_taxonomy( get_post_type(), 'category' ) ) {
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|
$posted_in = __( 'This entry was posted in %1$s. Bookmark the <a href="%3$s" title="Permalink to %4$s" rel="bookmark">permalink</a>.', 'twentyten' );
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|
} else {
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|
$posted_in = __( 'Bookmark the <a href="%3$s" title="Permalink to %4$s" rel="bookmark">permalink</a>.', 'twentyten' );
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|
}
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|
// Prints the string, replacing the placeholders.
|
|
printf(
|
|
$posted_in,
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|
get_the_category_list( ', ' ),
|
|
$tag_list,
|
|
get_permalink(),
|
|
the_title_attribute( 'echo=0' )
|
|
);
|
|
}
|
|
endif;
|