442 lines
16 KiB
PHP
442 lines
16 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), you can
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* override certain functions (those wrapped in a function_exists() call) by defining
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* them first in your child theme's functions.php file. The child theme's functions.php
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* file is included before the parent theme's file, so the child theme functions would
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* 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, 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 3.0.0
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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, navigation menus, and automatic feed links.
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* @uses add_custom_background() To add support for a custom background.
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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 add_custom_image_header() To add support for a custom header.
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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 3.0.0
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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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// This theme uses post thumbnails
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add_theme_support( 'post-thumbnails' );
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// This theme uses wp_nav_menu()
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add_theme_support( 'nav-menus' );
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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', TEMPLATEPATH . '/languages' );
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$locale = get_locale();
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$locale_file = TEMPLATEPATH . "/languages/$locale.php";
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if ( is_readable( $locale_file ) )
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require_once( $locale_file );
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// This theme allows users to set a custom background
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add_custom_background();
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// Your changeable header business starts here
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define( 'HEADER_TEXTCOLOR', '' );
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// No CSS, just IMG call. The %s is a placeholder for the theme template directory URI.
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define( 'HEADER_IMAGE', '%s/images/headers/path.jpg' );
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// The height and width of your custom header. You can hook into the theme's own filters to change these values.
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// Add a filter to twentyten_header_image_width and twentyten_header_image_height to change these values.
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define( 'HEADER_IMAGE_WIDTH', apply_filters( 'twentyten_header_image_width', 940 ) );
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define( 'HEADER_IMAGE_HEIGHT', apply_filters( 'twentyten_header_image_height', 198 ) );
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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 (larger images will be auto-cropped to fit).
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set_post_thumbnail_size( HEADER_IMAGE_WIDTH, HEADER_IMAGE_HEIGHT, true );
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// Don't support text inside the header image.
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define( 'NO_HEADER_TEXT', true );
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// Add a way for the custom header to be styled in the admin panel that controls
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// custom headers. See twentyten_admin_header_style(), below.
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add_custom_image_header( '', 'twentyten_admin_header_style' );
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// ... and thus ends the changeable 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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'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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'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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'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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'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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'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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'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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'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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'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 3.0.0
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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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#headimg {
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height: <?php echo HEADER_IMAGE_HEIGHT; ?>px;
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width: <?php echo HEADER_IMAGE_WIDTH; ?>px;
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}
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#headimg h1, #headimg #desc {
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display: none;
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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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if ( ! function_exists( 'twentyten_the_page_number' ) ) :
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/**
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* Prints the page number currently being browsed, with a vertical bar before it.
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*
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* Used in Twenty Ten's header.php to add the page number to the <title> HTML tag.
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*
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* @since 3.0.0
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*/
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function twentyten_the_page_number() {
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global $paged; // Contains page number.
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if ( $paged >= 2 )
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echo ' | ' . sprintf( __( 'Page %s' , 'twentyten' ), $paged );
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}
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endif;
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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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* @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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* Sets the "read more" link to something pretty.
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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 excerpt_more filter hook.
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*
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* @since 3.0.0
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* @return string A pretty 'Continue reading' link.
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*/
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function twentyten_excerpt_more( $more ) {
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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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add_filter( 'excerpt_more', 'twentyten_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.
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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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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 3.0.0
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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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<?php if ( '' == $comment->comment_type ) : ?>
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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( __( '<cite class="fn">%s</cite> <span class="says">says:</span>', 'twentyten' ), get_comment_author_link() ); ?>
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</div>
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<?php if ( $comment->comment_approved == '0' ) : ?>
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<em><?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( $comment->comment_ID ) ); ?>"><?php printf( __( '%1$s at %2$s', 'twentyten' ), get_comment_date(), get_comment_time() ); ?></a><?php edit_comment_link( __( '(Edit)', 'twentyten' ),' ','' ); ?></div>
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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>
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</div>
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<?php else : ?>
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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 endif;
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}
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endif;
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if ( ! function_exists( 'twentyten_cat_list' ) ) :
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/**
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* Returns the list of categories
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*
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* Returns the list of categories based on if we are or are
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* not browsing a category archive page.
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*
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* @uses twentyten_term_list
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*
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* @return string
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*/
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function twentyten_cat_list() {
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return twentyten_term_list( 'category', ', ', __( 'Posted in %s', 'twentyten' ), __( 'Also posted in %s', 'twentyten' ) );
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}
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endif;
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if ( ! function_exists( 'twentyten_tag_list' ) ) :
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/**
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* Returns the list of tags
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*
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* Returns the list of tags based on if we are or are not
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* browsing a tag archive page
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*
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* @uses twentyten_term_list
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*
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* @return string
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*/
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function twentyten_tag_list() {
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return twentyten_term_list( 'post_tag', ', ', __( 'Tagged %s', 'twentyten' ), __( 'Also tagged %s', 'twentyten' ) );
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}
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endif;
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if ( ! function_exists( 'twentyten_term_list' ) ) :
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/**
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* Returns the list of taxonomy items in multiple ways
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*
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* Returns the list of taxonomy items differently based on
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* if we are browsing a term archive page or a different
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* type of page. If browsing a term archive page and the
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* post has no other taxonomied terms, it returns empty
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*
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* @return string
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*/
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function twentyten_term_list( $taxonomy, $glue = ', ', $text = '', $also_text = '' ) {
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global $wp_query, $post;
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$current_term = $wp_query->get_queried_object();
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$terms = wp_get_object_terms( $post->ID, $taxonomy );
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// If we're viewing a Taxonomy page..
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if ( isset( $current_term->taxonomy ) && $taxonomy == $current_term->taxonomy ) {
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// Remove the term from display.
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foreach ( (array) $terms as $key => $term ) {
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if ( $term->term_id == $current_term->term_id ) {
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unset( $terms[$key] );
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break;
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}
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}
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// Change to Also text as we've now removed something from the terms list.
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$text = $also_text;
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}
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$tlist = array();
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$rel = 'category' == $taxonomy ? 'rel="category"' : 'rel="tag"';
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foreach ( (array) $terms as $term ) {
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$tlist[] = '<a href="' . get_term_link( $term, $taxonomy ) . '" title="' . esc_attr( sprintf( __( 'View all posts in %s', 'twentyten' ), $term->name ) ) . '" ' . $rel . '>' . $term->name . '</a>';
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}
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if ( ! empty( $tlist ) )
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return sprintf( $text, join( $glue, $tlist ) );
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return '';
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}
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endif;
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/**
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* Register widgetized areas, including two sidebars and four widget-ready columns in the footer.
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*
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* To override twentyten_widgets_init() in a child theme, remove the action hook and add your own
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* function tied to the init hook.
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* @uses register_sidebar
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*/
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function twentyten_widgets_init() {
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// Area 1
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register_sidebar( array (
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'name' => 'Primary Widget Area',
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'id' => 'primary-widget-area',
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'description' => __( 'The primary widget area' , 'twentyten' ),
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'before_widget' => '<li id="%1$s" class="widget-container %2$s">',
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'after_widget' => "</li>",
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'before_title' => '<h3 class="widget-title">',
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'after_title' => '</h3>',
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) );
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// Area 2
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register_sidebar( array (
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'name' => 'Secondary Widget Area',
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'id' => 'secondary-widget-area',
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'description' => __( 'The secondary widget area' , 'twentyten' ),
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'before_widget' => '<li id="%1$s" class="widget-container %2$s">',
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'after_widget' => "</li>",
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'before_title' => '<h3 class="widget-title">',
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'after_title' => '</h3>',
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) );
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// Area 3
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register_sidebar( array (
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'name' => 'First Footer Widget Area',
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'id' => 'first-footer-widget-area',
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'description' => __( 'The first footer widget area' , 'twentyten' ),
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'before_widget' => '<li id="%1$s" class="widget-container %2$s">',
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'after_widget' => "</li>",
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'before_title' => '<h3 class="widget-title">',
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'after_title' => '</h3>',
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) );
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// Area 4
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register_sidebar( array (
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'name' => 'Second Footer Widget Area',
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'id' => 'second-footer-widget-area',
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'description' => __( 'The second footer widget area' , 'twentyten' ),
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'before_widget' => '<li id="%1$s" class="widget-container %2$s">',
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'after_widget' => "</li>",
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'before_title' => '<h3 class="widget-title">',
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'after_title' => '</h3>',
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) );
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// Area 5
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register_sidebar( array (
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'name' => 'Third Footer Widget Area',
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'id' => 'third-footer-widget-area',
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'description' => __( 'The third footer widget area' , 'twentyten' ),
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'before_widget' => '<li id="%1$s" class="widget-container %2$s">',
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'after_widget' => "</li>",
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'before_title' => '<h3 class="widget-title">',
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'after_title' => '</h3>',
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) );
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// Area 6
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register_sidebar( array (
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'name' => 'Fourth Footer Widget Area',
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'id' => 'fourth-footer-widget-area',
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'description' => __( 'The fourth footer widget area' , 'twentyten' ),
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'before_widget' => '<li id="%1$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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add_action( '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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function twentyten_remove_recent_comments_style() {
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global $wp_widget_factory;
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remove_action( 'wp_head', array( $wp_widget_factory->widgets['WP_Widget_Recent_Comments'], 'recent_comments_style' ) );
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}
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add_action( 'widgets_init', 'twentyten_remove_recent_comments_style' );
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