WordPress/wp-content/themes/twentyeleven/functions.php

453 lines
13 KiB
PHP

<?php
/**
* @package WordPress
* @subpackage Twenty Eleven
*/
/**
* Make theme available for translation
* Translations can be filed in the /languages/ directory
* If you're building a theme based on Twenty Eleven, use a find and replace
* to change 'twentyeleven' to the name of your theme in all the template files
*/
load_theme_textdomain( 'twentyeleven', TEMPLATEPATH . '/languages' );
$locale = get_locale();
$locale_file = TEMPLATEPATH . "/languages/$locale.php";
if ( is_readable( $locale_file ) )
require_once( $locale_file );
/**
* Set the content width based on the theme's design and stylesheet.
*/
if ( ! isset( $content_width ) )
$content_width = 584;
/**
* This theme uses wp_nav_menu() in one location.
*/
register_nav_menus( array(
'primary' => __( 'Primary Menu', 'twentyeleven' ),
) );
/**
* Add default posts and comments RSS feed links to head
*/
add_theme_support( 'automatic-feed-links' );
/**
* Add support for an Aside Post Format
*/
add_theme_support( 'post-formats', array( 'aside', 'link', 'gallery', 'status', 'quote' ) );
/**
* Add support for custom backgrounds
*/
add_custom_background();
// This theme uses Feature Images for per-post/per-page Custom Header images
add_theme_support( 'post-thumbnails' );
/**
* Add support for Custom Headers
*/
define( 'HEADER_TEXTCOLOR', '000' );
// No CSS, just an IMG call. The %s is a placeholder for the theme template directory URI.
define( 'HEADER_IMAGE', '%s/images/headers/default.jpg' );
// The height and width of your custom header. You can hook into the theme's own filters to change these values.
// Add a filter to twentyeleven_header_image_width and twentyeleven_header_image_height to change these values.
define( 'HEADER_IMAGE_WIDTH', apply_filters( 'twentyeleven_header_image_width', 1000 ) );
define( 'HEADER_IMAGE_HEIGHT', apply_filters( 'twentyeleven_header_image_height', 300 ) );
// We'll be using post thumbnails for custom header images on posts and pages.
// We want them to be 940 pixels wide by 198 pixels tall.
// Larger images will be auto-cropped to fit, smaller ones will be ignored. See header.php.
set_post_thumbnail_size( HEADER_IMAGE_WIDTH, HEADER_IMAGE_HEIGHT, true );
// Add a way for the custom header to be styled in the admin panel that controls
// custom headers. See twentyeleven_admin_header_style(), below.
add_custom_image_header( 'twentyeleven_header_style', 'twentyeleven_admin_header_style', 'twentyeleven_admin_header_image' );
// ... and thus ends the changeable header business.
if ( ! function_exists( 'twentyeleven_header_style' ) ) :
/**
* Styles the header image and text displayed on the blog
*
* @since Twenty Eleven 1.0
*/
function twentyeleven_header_style() {
// If no custom options for text are set, let's bail
// get_header_textcolor() options: HEADER_TEXTCOLOR is default, hide text (returns 'blank') or any hex value
if ( HEADER_TEXTCOLOR == get_header_textcolor() )
return;
// If we get this far, we have custom styles. Let's do this.
?>
<style type="text/css">
<?php
// Has the text been hidden?
if ( 'blank' == get_header_textcolor() ) :
?>
#site-title,
#site-description {
position: absolute !important;
clip: rect(1px 1px 1px 1px); /* IE6, IE7 */
clip: rect(1px, 1px, 1px, 1px);
}
<?php
// If the user has set a custom color for the text use that
else :
?>
#site-title a,
#site-description {
color: #<?php echo get_header_textcolor(); ?> !important;
}
<?php endif; ?>
</style>
<?php
}
endif;
if ( ! function_exists( 'twentyeleven_admin_header_style' ) ) :
/**
* Styles the header image displayed on the Appearance > Header admin panel.
*
* Referenced via add_custom_image_header() in twentyeleven_setup().
*
* @since Twenty Eleven 1.0
*/
function twentyeleven_admin_header_style() {
?>
<style type="text/css">
.appearance_page_custom-header #headimg {
border: none;
}
#headimg h1,
#desc {
font-family: "Helvetica Neue", Arial, Helvetica, "Nimbus Sans L", sans-serif;
}
#headimg h1 {
margin: 0;
}
#headimg h1 a {
font-size: 32px;
line-height: 36px;
text-decoration: none;
}
#desc {
font-size: 14px;
line-height: 23px;
padding: 0 0 3em;
}
<?php
// If the user has set a custom color for the text use that
if ( get_header_textcolor() != HEADER_TEXTCOLOR ) :
?>
#site-title a,
#site-description {
color: #<?php echo get_header_textcolor(); ?>;
}
<?php endif; ?>
#headimg img {
max-width: 1000px;
height: auto;
width: 100%;
}
</style>
<?php
}
endif;
if ( ! function_exists( 'twentyeleven_admin_header_image' ) ) :
/**
* Custom header image markup displayed on the Appearance > Header admin panel.
*
* Referenced via add_custom_image_header() in twentyeleven_setup().
*
* @since Twenty Eleven 1.0
*/
function twentyeleven_admin_header_image() { ?>
<div id="headimg">
<?php
if ( 'blank' == get_theme_mod( 'header_textcolor', HEADER_TEXTCOLOR ) || '' == get_theme_mod( 'header_textcolor', HEADER_TEXTCOLOR ) )
$style = ' style="display:none;"';
else
$style = ' style="color:#' . get_theme_mod( 'header_textcolor', HEADER_TEXTCOLOR ) . ';"';
?>
<h1><a id="name"<?php echo $style; ?> onclick="return false;" href="<?php echo home_url( '/' ); ?>"><?php bloginfo( 'name' ); ?></a></h1>
<div id="desc"<?php echo $style; ?>><?php bloginfo( 'description' ); ?></div>
<img src="<?php esc_url ( header_image() ); ?>" alt="" />
</div>
<?php }
endif;
/**
* Sets the post excerpt length to 40 characters.
*
* To override this length in a child theme, remove the filter and add your own
* function tied to the excerpt_length filter hook.
*/
function twentyeleven_excerpt_length( $length ) {
return 40;
}
add_filter( 'excerpt_length', 'twentyeleven_excerpt_length' );
/**
* Returns a "Continue Reading" link for excerpts
*/
function twentyeleven_continue_reading_link() {
return ' <a href="'. get_permalink() . '">' . __( 'Continue reading <span class="meta-nav">&rarr;</span>', 'twentyeleven' ) . '</a>';
}
/**
* Replaces "[...]" (appended to automatically generated excerpts) with an ellipsis and twentyeleven_continue_reading_link().
*
* To override this in a child theme, remove the filter and add your own
* function tied to the excerpt_more filter hook.
*/
function twentyeleven_auto_excerpt_more( $more ) {
return ' &hellip;' . twentyeleven_continue_reading_link();
}
add_filter( 'excerpt_more', 'twentyeleven_auto_excerpt_more' );
/**
* Adds a pretty "Continue Reading" link to custom post excerpts.
*
* To override this link in a child theme, remove the filter and add your own
* function tied to the get_the_excerpt filter hook.
*/
function twentyeleven_custom_excerpt_more( $output ) {
if ( has_excerpt() && ! is_attachment() ) {
$output .= twentyeleven_continue_reading_link();
}
return $output;
}
add_filter( 'get_the_excerpt', 'twentyeleven_custom_excerpt_more' );
/**
* Add Twenty Eleven's custom image sizes
*/
add_image_size( 'large-feature', HEADER_IMAGE_WIDTH, 500, true ); // Used for large feature images
add_image_size( 'small-feature', 500, 500 ); // Used for featured posts if a large-feature doesn't exist
/**
* Add custom body classes
*/
function twentyeleven_body_class($classes) {
if ( is_singular() && ! is_home() && ! is_page_template( 'showcase.php' ) )
$classes[] = 'singular';
return $classes;
}
add_filter( 'body_class', 'twentyeleven_body_class' );
/**
* Get our wp_nav_menu() fallback, wp_page_menu(), to show a home link.
*/
function twentyeleven_page_menu_args( $args ) {
$args['show_home'] = true;
return $args;
}
add_filter( 'wp_page_menu_args', 'twentyeleven_page_menu_args' );
/**
* Register widgetized area and update sidebar with default widgets
*/
function twentyeleven_widgets_init() {
register_sidebar( array(
'name' => __( 'Main Sidebar', 'twentyeleven' ),
'id' => 'sidebar-1',
'before_widget' => '<aside id="%1$s" class="widget %2$s">',
'after_widget' => "</aside>",
'before_title' => '<h1 class="widget-title">',
'after_title' => '</h1>',
) );
register_sidebar( array(
'name' => __( 'Showcase Sidebar', 'twentyeleven' ),
'id' => 'sidebar-2',
'description' => __( 'The sidebar for the optional Showcase Template', 'twentyeleven' ),
'before_widget' => '<aside id="%1$s" class="widget %2$s">',
'after_widget' => "</aside>",
'before_title' => '<h1 class="widget-title">',
'after_title' => '</h1>',
) );
register_sidebar( array(
'name' => __( 'Footer Area One', 'twentyeleven' ),
'id' => 'sidebar-3',
'description' => __( 'An optional widget area for your site footer', 'twentyeleven' ),
'before_widget' => '<aside id="%1$s" class="widget %2$s">',
'after_widget' => "</aside>",
'before_title' => '<h1 class="widget-title">',
'after_title' => '</h1>',
) );
register_sidebar( array(
'name' => __( 'Footer Area Two', 'twentyeleven' ),
'id' => 'sidebar-4',
'description' => __( 'An optional widget area for your site footer', 'twentyeleven' ),
'before_widget' => '<aside id="%1$s" class="widget %2$s">',
'after_widget' => "</aside>",
'before_title' => '<h1 class="widget-title">',
'after_title' => '</h1>',
) );
register_sidebar( array(
'name' => __( 'Footer Area Three', 'twentyeleven' ),
'id' => 'sidebar-5',
'description' => __( 'An optional widget area for your site footer', 'twentyeleven' ),
'before_widget' => '<aside id="%1$s" class="widget %2$s">',
'after_widget' => "</aside>",
'before_title' => '<h1 class="widget-title">',
'after_title' => '</h1>',
) );
}
add_action( 'init', 'twentyeleven_widgets_init' );
/**
* Grab Twenty Eleven's Custom Widgets
*/
require( dirname( __FILE__ ) . '/widgets.php' );
/**
* Display navigation to next/previous pages when applicable
*/
function twentyeleven_content_nav($nav_id) {
global $wp_query;
if ( $wp_query->max_num_pages > 1 ) : ?>
<nav id="<?php echo $nav_id; ?>">
<h1 class="section-heading"><?php _e( 'Post navigation', 'twentyeleven' ); ?></h1>
<div class="nav-previous"><?php next_posts_link( __( '<span class="meta-nav">&larr;</span> Older posts', 'twentyeleven' ) ); ?></div>
<div class="nav-next"><?php previous_posts_link( __( 'Newer posts <span class="meta-nav">&rarr;</span>', 'twentyeleven' ) ); ?></div>
</nav><!-- #nav-above -->
<?php endif;
}
/**
* Grab the first URL from a Link post
*/
function twentyeleven_url_grabber() {
global $post, $posts;
$first_url = '';
ob_start();
ob_end_clean();
$output = preg_match_all('/<a.+href=[\'"]([^\'"]+)[\'"].*>/i', $post->post_content, $matches);
$first_url = $matches [1] [0];
if ( empty( $first_url ) )
return false;
return $first_url;
}
/**
* Count the number of footer sidebars to enable dynamic classes for the footer
*/
function twentyeleven_footer_sidebar_class() {
$count = 0;
if ( is_active_sidebar( 'sidebar-3' ) )
$count++;
if ( is_active_sidebar( 'sidebar-4' ) )
$count++;
if ( is_active_sidebar( 'sidebar-5' ) )
$count++;
switch ( $count ) {
case '1':
$class = 'one';
break;
case '2':
$class = 'two';
break;
case '3':
$class = 'three';
break;
default:
$class = '';
break;
}
if ( '' != $class )
echo 'class="' . $class . '"';
}
if ( ! function_exists( 'twentyeleven_comment' ) ) :
/**
* Template for comments and pingbacks.
*
* To override this walker in a child theme without modifying the comments template
* simply create your own twentyeleven_comment(), and that function will be used instead.
*
* Used as a callback by wp_list_comments() for displaying the comments.
*
* @since Twenty Eleven 1.0
*/
function twentyeleven_comment( $comment, $args, $depth ) {
$GLOBALS['comment'] = $comment;
switch ( $comment->comment_type ) :
case '' :
?>
<li <?php comment_class(); ?> id="li-comment-<?php comment_ID(); ?>">
<article id="comment-<?php comment_ID(); ?>" class="comment">
<footer class="comment-meta">
<div class="comment-author vcard">
<?php
$avatar_size = 68;
if ( '0' != $comment->comment_parent )
$avatar_size = 39;
echo get_avatar( $comment, $avatar_size );
printf( __( '%1$s on %2$s%3$s at %4$s%5$s <span class="says">said:</span>', 'twentyeleven' ),
sprintf( '<cite class="fn">%s</cite>', get_comment_author_link() ),
'<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 &darr;', '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()