520 lines
16 KiB
PHP
520 lines
16 KiB
PHP
<?php
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/**
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* Twenty Eleven 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, twentyeleven_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', 'twentyeleven_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 Eleven
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* @since Twenty Eleven 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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if ( ! isset( $content_width ) )
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$content_width = 584;
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/**
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* Tell WordPress to run twentyeleven_setup() when the 'after_setup_theme' hook is run.
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*/
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add_action( 'after_setup_theme', 'twentyeleven_setup' );
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if ( ! function_exists( 'twentyeleven_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 twentyeleven_setup() in a child theme, add your own twentyeleven_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 and automatic feed links.
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* @uses register_nav_menus() To add support for navigation menus.
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* @uses add_custom_background() To add support for a custom background.
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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 Twenty Eleven 1.0
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*/
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function twentyeleven_setup() {
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/**
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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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* If you're building a theme based on Twenty Eleven, use a find and replace
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* to change 'twentyeleven' to the name of your theme in all the template files
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*/
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load_theme_textdomain( 'twentyeleven', 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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/**
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* Load up our theme options page
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*/
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require( dirname( __FILE__ ) . '/inc/theme-options/theme-options.php' );
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/**
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* Grab Twenty Eleven's Custom Widgets
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*/
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require( dirname( __FILE__ ) . '/inc/widgets.php' );
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/**
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* Add default posts and comments RSS feed links to head
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*/
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add_theme_support( 'automatic-feed-links' );
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/**
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* This theme uses wp_nav_menu() in one location.
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*/
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register_nav_menus( array(
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'primary' => __( 'Primary Menu', 'twentyeleven' ),
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) );
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/**
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* Add support for an Aside Post Format
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*/
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add_theme_support( 'post-formats', array( 'aside', 'link', 'gallery', 'status', 'quote' ) );
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/**
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* Add support for custom backgrounds
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*/
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add_custom_background();
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// This theme uses Feature Images for per-post/per-page Custom Header images
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add_theme_support( 'post-thumbnails' );
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/**
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* Add support for Custom Headers
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*/
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define( 'HEADER_TEXTCOLOR', '000' );
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// No CSS, just an IMG call. The %s is a placeholder for the theme template directory URI.
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define( 'HEADER_IMAGE', '%s/images/headers/default.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 twentyeleven_header_image_width and twentyeleven_header_image_height to change these values.
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define( 'HEADER_IMAGE_WIDTH', apply_filters( 'twentyeleven_header_image_width', 1000 ) );
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define( 'HEADER_IMAGE_HEIGHT', apply_filters( 'twentyeleven_header_image_height', 300 ) );
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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( HEADER_IMAGE_WIDTH, HEADER_IMAGE_HEIGHT, true );
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// Add Twenty Eleven's custom image sizes
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add_image_size( 'large-feature', HEADER_IMAGE_WIDTH, 500, true ); // Used for large feature images
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add_image_size( 'small-feature', 500, 500 ); // Used for featured posts if a large-feature doesn't exist
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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 twentyeleven_admin_header_style(), below.
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add_custom_image_header( 'twentyeleven_header_style', 'twentyeleven_admin_header_style', 'twentyeleven_admin_header_image' );
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// ... and thus ends the changeable header business.
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}
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endif; // twentyeleven_setup
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if ( ! function_exists( 'twentyeleven_header_style' ) ) :
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/**
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* Styles the header image and text displayed on the blog
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*
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* @since Twenty Eleven 1.0
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*/
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function twentyeleven_header_style() {
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// If no custom options for text are set, let's bail
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// get_header_textcolor() options: HEADER_TEXTCOLOR is default, hide text (returns 'blank') or any hex value
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if ( HEADER_TEXTCOLOR == get_header_textcolor() )
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return;
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// If we get this far, we have custom styles. Let's do this.
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?>
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<style type="text/css">
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<?php
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// Has the text been hidden?
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if ( 'blank' == get_header_textcolor() ) :
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?>
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#site-title,
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#site-description {
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position: absolute !important;
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clip: rect(1px 1px 1px 1px); /* IE6, IE7 */
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clip: rect(1px, 1px, 1px, 1px);
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}
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<?php
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// If the user has set a custom color for the text use that
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else :
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?>
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#site-title a,
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#site-description {
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color: #<?php echo get_header_textcolor(); ?> !important;
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}
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<?php endif; ?>
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</style>
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<?php
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}
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endif; // twentyeleven_header_style
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if ( ! function_exists( 'twentyeleven_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 twentyeleven_setup().
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*
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* @since Twenty Eleven 1.0
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*/
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function twentyeleven_admin_header_style() {
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?>
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<style type="text/css">
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.appearance_page_custom-header #headimg {
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border: none;
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}
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#headimg h1,
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#desc {
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font-family: "Helvetica Neue", Arial, Helvetica, "Nimbus Sans L", sans-serif;
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}
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#headimg h1 {
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margin: 0;
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}
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#headimg h1 a {
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font-size: 32px;
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line-height: 36px;
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text-decoration: none;
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}
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#desc {
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font-size: 14px;
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line-height: 23px;
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padding: 0 0 3em;
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}
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<?php
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// If the user has set a custom color for the text use that
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if ( get_header_textcolor() != HEADER_TEXTCOLOR ) :
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?>
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#site-title a,
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#site-description {
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color: #<?php echo get_header_textcolor(); ?>;
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}
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<?php endif; ?>
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#headimg img {
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max-width: 1000px;
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height: auto;
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width: 100%;
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}
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</style>
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<?php
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}
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endif; // twentyeleven_admin_header_style
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if ( ! function_exists( 'twentyeleven_admin_header_image' ) ) :
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/**
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* Custom header image markup displayed on the Appearance > Header admin panel.
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*
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* Referenced via add_custom_image_header() in twentyeleven_setup().
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*
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* @since Twenty Eleven 1.0
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*/
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function twentyeleven_admin_header_image() { ?>
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<div id="headimg">
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<?php
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if ( 'blank' == get_theme_mod( 'header_textcolor', HEADER_TEXTCOLOR ) || '' == get_theme_mod( 'header_textcolor', HEADER_TEXTCOLOR ) )
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$style = ' style="display:none;"';
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else
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$style = ' style="color:#' . get_theme_mod( 'header_textcolor', HEADER_TEXTCOLOR ) . ';"';
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?>
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<h1><a id="name"<?php echo $style; ?> onclick="return false;" href="<?php echo home_url( '/' ); ?>"><?php bloginfo( 'name' ); ?></a></h1>
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<div id="desc"<?php echo $style; ?>><?php bloginfo( 'description' ); ?></div>
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<img src="<?php esc_url ( header_image() ); ?>" alt="" />
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</div>
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<?php }
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endif; // twentyeleven_admin_header_image
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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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function twentyeleven_excerpt_length( $length ) {
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return 40;
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}
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add_filter( 'excerpt_length', 'twentyeleven_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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function twentyeleven_continue_reading_link() {
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return ' <a href="'. get_permalink() . '">' . __( 'Continue reading <span class="meta-nav">→</span>', 'twentyeleven' ) . '</a>';
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}
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/**
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* Replaces "[...]" (appended to automatically generated excerpts) with an ellipsis and twentyeleven_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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function twentyeleven_auto_excerpt_more( $more ) {
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return ' …' . twentyeleven_continue_reading_link();
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}
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add_filter( 'excerpt_more', 'twentyeleven_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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function twentyeleven_custom_excerpt_more( $output ) {
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if ( has_excerpt() && ! is_attachment() ) {
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$output .= twentyeleven_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', 'twentyeleven_custom_excerpt_more' );
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/**
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* Add custom body classes
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*/
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function twentyeleven_singular_class( $classes ) {
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if ( is_singular() && ! is_home() && ! is_page_template( 'showcase.php' ) )
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$classes[] = 'singular';
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return $classes;
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}
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add_filter( 'body_class', 'twentyeleven_singular_class' );
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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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function twentyeleven_page_menu_args( $args ) {
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$args['show_home'] = true;
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return $args;
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}
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add_filter( 'wp_page_menu_args', 'twentyeleven_page_menu_args' );
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/**
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* Register widgetized area and update sidebar with default widgets
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*/
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function twentyeleven_widgets_init() {
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register_sidebar( array(
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'name' => __( 'Main Sidebar', 'twentyeleven' ),
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'id' => 'sidebar-1',
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'before_widget' => '<aside id="%1$s" class="widget %2$s">',
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'after_widget' => "</aside>",
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'before_title' => '<h1 class="widget-title">',
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'after_title' => '</h1>',
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) );
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register_sidebar( array(
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'name' => __( 'Showcase Sidebar', 'twentyeleven' ),
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'id' => 'sidebar-2',
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'description' => __( 'The sidebar for the optional Showcase Template', 'twentyeleven' ),
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'before_widget' => '<aside id="%1$s" class="widget %2$s">',
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'after_widget' => "</aside>",
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'before_title' => '<h1 class="widget-title">',
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'after_title' => '</h1>',
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) );
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register_sidebar( array(
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'name' => __( 'Footer Area One', 'twentyeleven' ),
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'id' => 'sidebar-3',
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'description' => __( 'An optional widget area for your site footer', 'twentyeleven' ),
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'before_widget' => '<aside id="%1$s" class="widget %2$s">',
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'after_widget' => "</aside>",
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'before_title' => '<h1 class="widget-title">',
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'after_title' => '</h1>',
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) );
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register_sidebar( array(
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'name' => __( 'Footer Area Two', 'twentyeleven' ),
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'id' => 'sidebar-4',
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'description' => __( 'An optional widget area for your site footer', 'twentyeleven' ),
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'before_widget' => '<aside id="%1$s" class="widget %2$s">',
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'after_widget' => "</aside>",
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'before_title' => '<h1 class="widget-title">',
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'after_title' => '</h1>',
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) );
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register_sidebar( array(
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'name' => __( 'Footer Area Three', 'twentyeleven' ),
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'id' => 'sidebar-5',
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'description' => __( 'An optional widget area for your site footer', 'twentyeleven' ),
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'before_widget' => '<aside id="%1$s" class="widget %2$s">',
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'after_widget' => "</aside>",
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'before_title' => '<h1 class="widget-title">',
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'after_title' => '</h1>',
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) );
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}
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add_action( 'init', 'twentyeleven_widgets_init' );
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/**
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* Display navigation to next/previous pages when applicable
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*/
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function twentyeleven_content_nav( $nav_id ) {
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global $wp_query;
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if ( $wp_query->max_num_pages > 1 ) : ?>
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<nav id="<?php echo $nav_id; ?>">
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<h1 class="section-heading"><?php _e( 'Post navigation', 'twentyeleven' ); ?></h1>
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<div class="nav-previous"><?php next_posts_link( __( '<span class="meta-nav">←</span> Older posts', 'twentyeleven' ) ); ?></div>
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<div class="nav-next"><?php previous_posts_link( __( 'Newer posts <span class="meta-nav">→</span>', 'twentyeleven' ) ); ?></div>
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</nav><!-- #nav-above -->
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<?php endif;
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}
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/**
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* Grab the first URL from a Link post
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*/
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function twentyeleven_url_grabber() {
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global $post, $posts;
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$first_url = '';
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ob_start();
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ob_end_clean();
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$output = preg_match_all('/<a.+href=[\'"]([^\'"]+)[\'"].*>/i', $post->post_content, $matches);
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$first_url = $matches [1] [0];
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if ( empty( $first_url ) )
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return false;
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return $first_url;
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}
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/**
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* Count the number of footer sidebars to enable dynamic classes for the footer
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*/
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function twentyeleven_footer_sidebar_class() {
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$count = 0;
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if ( is_active_sidebar( 'sidebar-3' ) )
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$count++;
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if ( is_active_sidebar( 'sidebar-4' ) )
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$count++;
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if ( is_active_sidebar( 'sidebar-5' ) )
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$count++;
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switch ( $count ) {
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case '1':
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$class = 'one';
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break;
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case '2':
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$class = 'two';
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break;
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case '3':
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$class = 'three';
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break;
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default:
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$class = '';
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break;
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}
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if ( '' != $class )
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echo 'class="' . $class . '"';
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}
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if ( ! function_exists( 'twentyeleven_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 twentyeleven_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 Eleven 1.0
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*/
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function twentyeleven_comment( $comment, $args, $depth ) {
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$GLOBALS['comment'] = $comment;
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switch ( $comment->comment_type ) :
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case '' :
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?>
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<li <?php comment_class(); ?> id="li-comment-<?php comment_ID(); ?>">
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<article id="comment-<?php comment_ID(); ?>" class="comment">
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<footer class="comment-meta">
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<div class="comment-author vcard">
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<?php
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$avatar_size = 68;
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if ( '0' != $comment->comment_parent )
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$avatar_size = 39;
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echo get_avatar( $comment, $avatar_size );
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printf( __( '%1$s on %2$s%3$s at %4$s%5$s <span class="says">said:</span>', 'twentyeleven' ),
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sprintf( '<cite class="fn">%s</cite>', get_comment_author_link() ),
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'<a href="' . esc_url( get_comment_link( $comment->comment_ID ) ) . '"><time pubdate datetime="' . get_comment_time( 'c' ) . '">',
|
|
get_comment_date(),
|
|
get_comment_time(),
|
|
'</time></a>'
|
|
);
|
|
?>
|
|
|
|
<?php edit_comment_link( __( '[Edit]', 'twentyeleven' ), ' ' ); ?>
|
|
</div><!-- .comment-author .vcard -->
|
|
|
|
<?php if ( $comment->comment_approved == '0' ) : ?>
|
|
<em><?php _e( 'Your comment is awaiting moderation.', 'twentyeleven' ); ?></em>
|
|
<br />
|
|
<?php endif; ?>
|
|
|
|
</footer>
|
|
|
|
<div class="comment-content"><?php comment_text(); ?></div>
|
|
|
|
<div class="reply">
|
|
<?php comment_reply_link( array_merge( $args, array( 'reply_text' => __( 'Reply ↓', 'twentyeleven' ), 'depth' => $depth, 'max_depth' => $args['max_depth'] ) ) ); ?>
|
|
</div><!-- .reply -->
|
|
</article><!-- #comment-## -->
|
|
|
|
<?php
|
|
break;
|
|
case 'pingback' :
|
|
case 'trackback' :
|
|
?>
|
|
<li class="post pingback">
|
|
<p><?php _e( 'Pingback:', 'twentyeleven' ); ?> <?php comment_author_link(); ?><?php edit_comment_link( __( '(Edit)', 'twentyeleven' ), ' ' ); ?></p>
|
|
<?php
|
|
break;
|
|
endswitch;
|
|
}
|
|
endif; // ends check for twentyeleven_comment()
|