<?php
/**
* Reddle functions and definitions
*
* Sets up the theme and provides some helper functions. Some helper functions
* are used in the theme as custom template tags. Others are attached to action and
* filter hooks in WordPress to change core functionality.
*
* When using a child theme (see http://codex.wordpress.org/Theme_Development and
* http://codex.wordpress.org/Child_Themes), you can override certain functions
* (those wrapped in a function_exists() call) by defining them first in your child theme's
* functions.php file. The child theme's functions.php file is included before the parent
* theme's file, so the child theme functions would be used.
*
* Functions that are not pluggable (not wrapped in function_exists()) are instead attached
* to a filter or action hook. The hook can be removed by using remove_action() or
* remove_filter() and you can attach your own function to the hook.
*
* For more information on hooks, actions, and filters, see http://codex.wordpress.org/Plugin_API.
*
* @package Reddle
* @since Reddle 1.0
*/
/**
* Set the content width based on the theme's design and stylesheet.
*/
if ( ! isset( $content_width ) )
$content_width = 440; /* pixels */
/**
* Adjusts content_width value for when there are no active widgets in the
* sidebar.
*
* @since Reddle 1.2
*/
function reddle_set_content_width() {
global $content_width;
if ( ! is_active_sidebar( 'sidebar-1' ) && ! is_active_sidebar( 'sidebar-2' ) ) {
$content_width = 908; /* pixels */
}
}
add_action( 'template_redirect', 'reddle_set_content_width' );
if ( ! function_exists( 'reddle_setup' ) ):
/**
* Sets up theme defaults and registers support for various WordPress features.
*
* Note that this function is hooked into the after_setup_theme hook, which runs
* before the init hook. The init hook is too late for some features, such as indicating
* support post thumbnails.
*
* To override reddle_setup() in a child theme, add your own reddle_setup to your child theme's
* functions.php file.
*/
function reddle_setup() {
/**
* Make theme available for translation
* Translations can be filed in the /languages/ directory
* If you're building a theme based on Reddle, use a find and replace
* to change 'reddle' to the name of your theme in all the template files
*/
load_theme_textdomain( 'reddle', get_template_directory() . '/languages' );
/**
* Add default posts and comments RSS feed links to head
*/
add_theme_support( 'automatic-feed-links' );
/**
* This theme uses wp_nav_menu() in one location.
*/
register_nav_menus( array(
'primary' => __( 'Primary Menu', 'reddle' ),
) );
/**
* Add support for the Aside and Gallery Post Formats
*/
add_theme_support( 'post-formats', array( 'aside', 'image' ) );
/**
* Add in support for post thumbnails
*/
add_theme_support( 'post-thumbnails' );
/**
* Add support for custom backgrounds
*/
add_theme_support( 'custom-background' );
}
endif; // reddle_setup
/**
* Tell WordPress to run reddle_setup() when the 'after_setup_theme' hook is run.
*/
add_action( 'after_setup_theme', 'reddle_setup' );
/**
* Enqueue scripts and styles
*/
function reddle_scripts() {
wp_enqueue_style( 'reddle-style', get_stylesheet_uri() );
wp_enqueue_script( 'reddle-navigation', get_template_directory_uri() . '/js/navigation.js', array(), '20151026', true );
if ( is_singular() && comments_open() && get_option( 'thread_comments' ) ) {
wp_enqueue_script( 'comment-reply' );
}
}
add_action( 'wp_enqueue_scripts', 'reddle_scripts' );
/**
* Sets the post excerpt length to 40 words.
*/
function reddle_excerpt_length( $length ) {
return 40;
}
add_filter( 'excerpt_length', 'reddle_excerpt_length' );
/**
* Returns a "Continue Reading" link for excerpts
*/
function reddle_continue_reading_link() {
return ' <a href="'. esc_url( get_permalink() ) . '">' . __( 'Continue reading <span class="meta-nav">→</span>', 'reddle' ) . '</a>';
}
/**
* Replaces "[...]" (appended to automatically generated excerpts) with an ellipsis and reddle_continue_reading_link().
*/
function reddle_auto_excerpt_more( $more ) {
return ' …' . reddle_continue_reading_link();
}
add_filter( 'excerpt_more', 'reddle_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 reddle_custom_excerpt_more( $output ) {
if ( has_excerpt() && ! is_attachment() ) {
$output .= reddle_continue_reading_link();
}
return $output;
}
add_filter( 'get_the_excerpt', 'reddle_custom_excerpt_more' );
/**
* Register widgetized area
*/
function reddle_widgets_init() {
register_sidebar( array(
'name' => __( 'Sidebar 1', 'reddle' ),
'id' => 'sidebar-1',
'before_widget' => '<aside id="%1$s" class="widget %2$s">',
'after_widget' => '</aside>',
'before_title' => '<h1 class="widget-title">',
'after_title' => '</h1>',
) );
register_sidebar( array(
'name' => __( 'Sidebar 2', 'reddle' ),
'id' => 'sidebar-2',
'description' => __( 'An optional second sidebar area', 'reddle' ),
'before_widget' => '<aside id="%1$s" class="widget %2$s">',
'after_widget' => '</aside>',
'before_title' => '<h1 class="widget-title">',
'after_title' => '</h1>',
) );
register_sidebar( array(
'name' => __( 'First Footer Area', 'reddle' ),
'id' => 'sidebar-3',
'description' => __( 'An optional widget area for your site footer', 'reddle' ),
'before_widget' => '<aside id="%1$s" class="widget %2$s">',
'after_widget' => '</aside>',
'before_title' => '<h1 class="widget-title">',
'after_title' => '</h1>',
) );
register_sidebar( array(
'name' => __( 'Second Footer Area', 'reddle' ),
'id' => 'sidebar-4',
'description' => __( 'An optional widget area for your site footer', 'reddle' ),
'before_widget' => '<aside id="%1$s" class="widget %2$s">',
'after_widget' => '</aside>',
'before_title' => '<h1 class="widget-title">',
'after_title' => '</h1>',
) );
register_sidebar( array(
'name' => __( 'Third Footer Area', 'reddle' ),
'id' => 'sidebar-5',
'description' => __( 'An optional widget area for your site footer', 'reddle' ),
'before_widget' => '<aside id="%1$s" class="widget %2$s">',
'after_widget' => '</aside>',
'before_title' => '<h1 class="widget-title">',
'after_title' => '</h1>',
) );
}
add_action( 'widgets_init', 'reddle_widgets_init' );
/**
* Add some useful default widgets to the Reddle sidebar
*/
function reddle_default_widgets() {
global $sidebars_widgets;
$sidebars = get_option( 'sidebars_widgets' );
if ( empty( $sidebars['sidebar-1'] ) && isset( $_GET['activated'] ) ) {
update_option( 'widget_calendar', array( 2 => array( 'title' => __( 'Archives', 'reddle' ) ), '_multiwidget' => 1 ) );
update_option( 'widget_pages', array( 2 => array( 'title' => __( 'Pages', 'reddle' ) ), '_multiwidget' => 1 ) );
update_option( 'widget_tag_cloud', array( 2 => array( 'title' => __( 'Topics', 'reddle' ) ), '_multiwidget' => 1 ) );
update_option( 'widget_meta', array( 2 => array( 'title' => __( 'Info', 'reddle' ) ), '_multiwidget' => 1 ) );
update_option( 'sidebars_widgets', array(
'wp_inactive_widgets' => array(),
'sidebar-1' => array(
0 => 'calendar-2',
1 => 'pages-2',
2 => 'tag_cloud-2',
3 => 'meta-2',
),
'array_version' => 3
) );
}
}
add_action( 'after_setup_theme', 'reddle_default_widgets' );
if ( ! function_exists( 'reddle_content_nav' ) ):
/**
* Display navigation to next/previous pages when applicable
*
* @since Reddle 1.0
*/
function reddle_content_nav( $nav_id ) {
global $wp_query;
?>
<nav id="<?php echo esc_attr( $nav_id ); ?>">
<h1 class="assistive-text section-heading"><?php _e( 'Post navigation', 'reddle' ); ?></h1>
<?php if ( is_single() ) : // navigation links for single posts ?>
<?php previous_post_link( '<div class="nav-previous">%link</div>', '<span class="meta-nav">' . _x( '←', 'Previous post link', 'reddle' ) . '</span> %title' ); ?>
<?php next_post_link( '<div class="nav-next">%link</div>', '%title <span class="meta-nav">' . _x( '→', 'Next post link', 'reddle' ) . '</span>' ); ?>
<?php elseif ( $wp_query->max_num_pages > 1 && ( is_home() || is_archive() || is_search() ) ) : // navigation links for home, archive, and search pages ?>
<?php if ( get_next_posts_link() ) : ?>
<div class="nav-previous"><?php next_posts_link( __( '<span class="meta-nav">←</span> Older posts', 'reddle' ) ); ?></div>
<?php endif; ?>
<?php if ( get_previous_posts_link() ) : ?>
<div class="nav-next"><?php previous_posts_link( __( 'Newer posts <span class="meta-nav">→</span>', 'reddle' ) ); ?></div>
<?php endif; ?>
<?php endif; ?>
</nav><!-- #<?php echo $nav_id; ?> -->
<?php
}
endif; // reddle_content_nav
if ( ! function_exists( 'reddle_comment' ) ) :
/**
* Template for comments and pingbacks.
*
* To override this walker in a child theme without modifying the comments template
* simply create your own reddle_comment(), and that function will be used instead.
*
* Used as a callback by wp_list_comments() for displaying the comments.
*
* @since Reddle 0.4
*/
function reddle_comment( $comment, $args, $depth ) {
$GLOBALS['comment'] = $comment;
if ( 'pingback' == $comment->comment_type || 'trackback' == $comment->comment_type ) : ?>
<li class="post pingback">
<p><?php _e( 'Pingback:', 'reddle' ); ?> <?php comment_author_link(); ?><?php edit_comment_link( __( 'Edit', 'reddle' ), ' ' ); ?></p>
<?php else: ?>
<li <?php comment_class(); ?> id="li-comment-<?php comment_ID(); ?>">
<article id="comment-<?php comment_ID(); ?>" class="comment">
<footer>
<div class="comment-author vcard">
<?php
$comment_avatar_size = ( 0 == $comment->comment_parent ) ? 47 : 23;
echo get_avatar( $comment, $comment_avatar_size );
?>
<cite class="fn"><?php comment_author_link(); ?></cite>
</div><!-- .comment-author .vcard -->
<?php if ( '0' == $comment->comment_approved ) : ?>
<em><?php _e( 'Your comment is awaiting moderation.', 'reddle' ); ?></em>
<br />
<?php endif; ?>
<div class="comment-meta commentmetadata">
<a class="comment-time" href="<?php echo esc_url( get_comment_link( $comment->comment_ID ) ); ?>"><time pubdate datetime="<?php comment_time( 'c' ); ?>">
<?php printf( _x( '%1$s at %2$s', '1: date, 2: time', 'reddle' ), get_comment_date(), get_comment_time() ); ?>
</time></a>
<?php edit_comment_link( __( 'Edit', 'reddle' ), ' ' ); ?>
</div><!-- .comment-meta .commentmetadata -->
</footer>
<div class="comment-content"><?php comment_text(); ?></div>
<div class="reply">
<?php comment_reply_link( array_merge( $args, array( 'depth' => $depth, 'max_depth' => $args['max_depth'] ) ) ); ?>
</div><!-- .reply -->
</article><!-- #comment-## -->
<?php
endif;
}
endif; // ends check for reddle_comment()
if ( ! function_exists( 'reddle_posted_on' ) ) :
/**
* Prints HTML with meta information for the current post-date/time and author.
* Create your own reddle_posted_on to override in a child theme
*
* @since Reddle 1.0
*/
function reddle_posted_on() {
printf( __( '<span class="byline">Posted by <span class="author vcard"><a class="url fn n" href="%1$s" title="%2$s" rel="author">%3$s</a></span></span>', 'reddle' ),
esc_url( get_author_posts_url( get_the_author_meta( 'ID' ) ) ),
esc_attr( sprintf( __( 'View all posts by %s', 'reddle' ), get_the_author() ) ),
esc_html( get_the_author() )
);
}
endif;
if ( ! function_exists( 'reddle_the_attached_image' ) ) :
/**
* Prints the attached image with a link to the next attached image.
*/
function reddle_the_attached_image() {
$next_id = null;
$post = get_post();
$attachment_size = apply_filters( 'reddle_attachment_size', 1200 );
$attachment_size = array( $attachment_size, $attachment_size );
$next_attachment_url = wp_get_attachment_url();
if ( $post->post_parent ) {
/**
* Grab the IDs of all the image attachments in a gallery so we can get the
* URL of the next adjacent image in a gallery, or the first image (if
* we're looking at the last image in a gallery), or, in a gallery of one,
* just the link to that image file.
*/
$attachment_ids = get_posts( array(
'post_parent' => $post->post_parent,
'fields' => 'ids',
'numberposts' => 999,
'post_status' => 'inherit',
'post_type' => 'attachment',
'post_mime_type' => 'image',
'order' => 'ASC',
'orderby' => 'menu_order ID'
) );
// If there is more than 1 attachment in a gallery...
if ( is_countable( $attachment_ids ) && count( $attachment_ids ) > 1 ) {
foreach ( $attachment_ids as $idx => $attachment_id ) {
if ( $attachment_id == $post->ID ) {
$next_id = $attachment_ids[ ( $idx + 1 ) % count( $attachment_ids ) ];
break;
}
}
// get the URL of the next image attachment...
if ( $next_id )
$next_attachment_url = get_attachment_link( $next_id );
// or get the URL of the first image attachment.
else
$next_attachment_url = get_attachment_link( array_shift( $attachment_ids ) );
}
}
printf( '<a href="%1$s" title="%2$s" rel="attachment">%3$s</a>',
esc_url( $next_attachment_url ),
the_title_attribute( array( 'echo' => false ) ),
wp_get_attachment_image( $post->ID, $attachment_size )
);
}
endif;
/**
* Adds custom classes to the array of body classes.
*
* @since Reddle 1.0
*/
function reddle_body_classes( $classes ) {
// We should always have content
$classes[] = 'primary';
// If we have 1 sidebar active we have secondary content
if ( is_active_sidebar( 'sidebar-1' ) || is_active_sidebar( 'sidebar-2' ) )
$classes[] = 'secondary';
// If we have both sidebars active we have tertiary content
if ( is_active_sidebar( 'sidebar-1' ) && is_active_sidebar( 'sidebar-2' ) )
$classes[] = 'tertiary';
/**
* What's going on here?
* If there is a 'secondary' class we can override our basic CSS structure to make a 2-column layout
* adding some page width and some CSS to accommodate one widget area
* and if there is a 'tertiary' class we can override our basic structure to make a 3-column layout
* adding more page width and some CSS to accommodate two widget areas
*/
// Adds a class of index to views that are not posts or pages or search
if ( ! is_singular() && ! is_search() ) {
$classes[] = 'indexed';
}
// Adds a class of single-author to blogs with only 1 published author
if ( ! is_multi_author() ) {
$classes[] = 'single-author';
}
// Add as a class of fixed or fluid depending on whether or not there is or isn't a header image
$header_image = get_header_image();
if ( empty( $header_image ) ) {
$classes[] = 'fluid';
} else {
$classes[] = 'fixed';
}
return $classes;
}
add_filter( 'body_class', 'reddle_body_classes' );
/**
* Adds custom classes to the array of post classes.
*
* @since Reddle 1.0
*/
function reddle_post_classes( $classes ) {
global $post;
// Adds a class of has-featured-image
if ( '' != get_the_post_thumbnail() ) {
$classes[] = 'has-featured-image';
}
return $classes;
}
add_filter( 'post_class', 'reddle_post_classes' );
/**
* Count the number of footer sidebars to enable dynamic classes for the footer
*
* @since Reddle 1.0
*/
function reddle_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++;
$class = '';
switch ( $count ) {
case '1':
$class = 'one';
break;
case '2':
$class = 'two';
break;
case '3':
$class = 'three';
break;
}
if ( $class )
echo 'class="' . $class . '"';
}
/**
* Returns true if a blog has more than 1 category
*
* @since Reddle 1.0
*/
function reddle_categorized_blog() {
if ( false === ( $all_the_cool_cats = get_transient( 'all_the_cool_cats' ) ) ) {
// Create an array of all the categories that are attached to posts
$all_the_cool_cats = get_categories( array(
'hide_empty' => 1,
) );
// Count the number of categories that are attached to the posts
$all_the_cool_cats = is_countable( $all_the_cool_cats ) ? count( $all_the_cool_cats ) : 0;
set_transient( 'all_the_cool_cats', $all_the_cool_cats );
}
if ( '1' != $all_the_cool_cats ) {
// This blog has more than 1 category so reddle_categorized_blog should return true
return true;
} else {
// This blog has only 1 category so reddle_categorized_blog should return false
return false;
}
}
/**
* Flush out the transients used in reddle_categorized_blog
*
* @since Reddle 1.0
*/
function reddle_category_transient_flusher() {
// Like, beat it. Dig?
delete_transient( 'all_the_cool_cats' );
}
add_action( 'edit_category', 'reddle_category_transient_flusher' );
add_action( 'save_post', 'reddle_category_transient_flusher' );
/**
* Filter in a link to a content ID attribute for the next/previous image links on image attachment pages
*/
function reddle_enhanced_image_navigation( $url ) {
$post = get_post();
if ( wp_attachment_is_image() && ( $GLOBALS['wp_rewrite']->using_permalinks() && $post->post_parent > 0 && $post->post_parent != $post->ID ) )
$url = $url . '#main';
return $url;
}
add_filter( 'attachment_link', 'reddle_enhanced_image_navigation' );
/**
* Filters wp_title to print a neat <title> tag based on what is being viewed.
*
* @since Reddle 1.0
*/
function reddle_wp_title( $title, $sep ) {
global $page, $paged;
if ( is_feed() )
return $title;
// Add the blog name
$title .= get_bloginfo( 'name' );
// Add the blog description for the home/front page.
$site_description = get_bloginfo( 'description', 'display' );
if ( $site_description && ( is_home() || is_front_page() ) )
$title .= " $sep $site_description";
// Add a page number if necessary:
if ( $paged >= 2 || $page >= 2 )
$title .= " $sep " . sprintf( __( 'Page %s', 'reddle' ), max( $paged, $page ) );
return $title;
}
add_filter( 'wp_title', 'reddle_wp_title', 10, 2 );
/**
* Implement the Custom Header feature
*/
require get_template_directory() . '/inc/custom-header.php';
/**
* Load Jetpack compatibility file.
*/
if ( file_exists( get_template_directory() . '/inc/jetpack.php' ) )
require get_template_directory() . '/inc/jetpack.php';