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functions.php
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549 lines (461 loc) · 19.4 KB
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<?php
/**
*
* Sets up the theme and provides some helper functions, which are used
* in the theme as custom template tags. Others are attached to action and
* filter hooks in WordPress to change core functionality.
*
*/
/**
* Sets up the content width value based on the theme's design and stylesheet.
*/
if ( ! isset( $content_width ) )
$content_width = 700;
/**
* Sets up theme defaults and registers the various WordPress features.
*
* @uses load_theme_textdomain() For translation/localization support.
* @uses add_editor_style() To add a Visual Editor stylesheet.
* @uses add_theme_support() To add support for post thumbnails, automatic feed links,
* custom background, and post formats.
* @uses register_nav_menu() To add support for navigation menus.
* @uses set_post_thumbnail_size() To set a custom post thumbnail size.
*/
function liftoff_setup() {
/*
* Makes theme available for translation.
*
* Translations can be added to the /languages/ directory.
* If you're building a theme based on Liftoff, use a find and replace
* to change 'liftoff' to the name of your theme in all the template files.
*/
load_theme_textdomain( 'liftoff', get_stylesheet_directory() . '/languages' );
// This theme styles the visual editor with editor-style.css to match the theme style.
add_editor_style();
// Adds RSS feed links to <head> for posts and comments.
add_theme_support( 'automatic-feed-links' );
// This theme supports a variety of post formats.
add_theme_support( 'post-formats', array( 'aside', 'image', 'link', 'quote', 'status' ) );
// This theme uses wp_nav_menu() in one location.
register_nav_menu( 'primary', __( 'Primary Menu', 'liftoff' ) );
// This theme uses a custom image size for featured images, displayed on "standard" posts.
add_theme_support( 'post-thumbnails' );
set_post_thumbnail_size( 700, 9999 ); // Unlimited height, soft crop
}
add_action( 'after_setup_theme', 'liftoff_setup' );
/**
* Enqueues scripts and styles for front-end.
*/
function liftoff_scripts_styles() {
global $wp_styles;
/*
* Adds JavaScript to pages with the comment form to support
* sites with threaded comments (when in use).
*/
if ( is_singular() && comments_open() && get_option( 'thread_comments' ) )
wp_enqueue_script( 'comment-reply' );
/*
* Adds JavaScript for handling the navigation menu hide-and-show behavior.
*/
wp_enqueue_script( 'liftoff-navigation', get_stylesheet_directory_uri() . '/js/navigation.js', array(), '1.0', true );
/*
* Loads our main stylesheet.
*/
wp_enqueue_style( 'liftoff-style', get_stylesheet_uri() );
/*
* Loads the Internet Explorer specific stylesheet.
*/
wp_enqueue_style( 'liftoff-ie', get_stylesheet_directory_uri() . '/css/ie.css', array( 'liftoff-style' ), '20121010' );
$wp_styles->add_data( 'liftoff-ie', 'conditional', 'lt IE 9' );
}
add_action( 'wp_enqueue_scripts', 'liftoff_scripts_styles' );
/**
* Creates a nicely formatted and more specific title element text
* for output in head of document, based on current view.
*
* @param string $title Default title text for current view.
* @param string $sep Optional separator.
* @return string Filtered title.
*/
function liftoff_wp_title( $title, $sep ) {
global $paged, $page;
if ( is_feed() )
return $title;
// Add the site name.
$title .= get_bloginfo( 'name' );
// Add the site description for the home/front page.
$site_description = get_bloginfo( 'description', 'display' );
if ( $site_description && ( is_home() || is_front_page() ) )
$title = "$title $sep $site_description";
// Add a page number if necessary.
if( is_int($paged) && is_int($page) ){
if ( $paged >= 2 || $page >= 2 ){
$title = "$title $sep " . sprintf( __( 'Page %s', 'liftoff' ), max( $paged, $page ) );
}
}
return $title;
}
add_filter( 'wp_title', 'liftoff_wp_title', 10, 2 );
/**
* Makes our wp_nav_menu() fallback -- wp_page_menu() -- show a home link.
*/
function liftoff_page_menu_args( $args ) {
if ( ! isset( $args['show_home'] ) )
$args['show_home'] = true;
return $args;
}
add_filter( 'wp_page_menu_args', 'liftoff_page_menu_args' );
/**
* Registers our main widget area and the front page widget areas.
*/
function liftoff_widgets_init() {
register_sidebar( array(
'name' => __( 'Main Sidebar', 'liftoff' ),
'id' => 'sidebar-1',
'description' => __( 'Appears on posts and pages except the optional Front Page template, which has its own widgets', 'liftoff' ),
'before_widget' => '<aside id="%1$s" class="widget %2$s">',
'after_widget' => '</aside>',
'before_title' => '<h3 class="widget-title">',
'after_title' => '</h3>',
) );
register_sidebar( array(
'name' => __( 'First Front Page Widget Area', 'liftoff' ),
'id' => 'sidebar-2',
'description' => __( 'Appears when using the optional Front Page template with a page set as Static Front Page', 'liftoff' ),
'before_widget' => '<aside id="%1$s" class="widget %2$s">',
'after_widget' => '</aside>',
'before_title' => '<h3 class="widget-title">',
'after_title' => '</h3>',
) );
register_sidebar( array(
'name' => __( 'Second Front Page Widget Area', 'liftoff' ),
'id' => 'sidebar-3',
'description' => __( 'Appears when using the optional Front Page template with a page set as Static Front Page', 'liftoff' ),
'before_widget' => '<aside id="%1$s" class="widget %2$s">',
'after_widget' => '</aside>',
'before_title' => '<h3 class="widget-title">',
'after_title' => '</h3>',
) );
}
add_action( 'widgets_init', 'liftoff_widgets_init' );
if ( ! function_exists( 'liftoff_content_nav' ) ) :
/**
* Displays navigation to next/previous pages when applicable.
*/
function liftoff_content_nav( $html_id ) {
global $wp_query;
$html_id = esc_attr( $html_id );
if ( $wp_query->max_num_pages > 1 ) : ?>
<nav id="<?php echo $html_id; ?>" class="navigation" role="navigation">
<h3 class="assistive-text"><?php _e( 'Post navigation', 'liftoff' ); ?></h3>
<div class="nav-previous alignleft"><?php next_posts_link( __( '<span class="meta-nav">←</span> Older posts', 'liftoff' ) ); ?></div>
<div class="nav-next alignright"><?php previous_posts_link( __( 'Newer posts <span class="meta-nav">→</span>', 'liftoff' ) ); ?></div>
</nav><!-- #<?php echo $html_id; ?> .navigation -->
<?php endif;
}
endif;
if ( ! function_exists( 'liftoff_comment' ) ) :
/**
* Template for comments and pingbacks.
*
* To override this walker in a child theme without modifying the comments template
* simply create your own liftoff_comment(), and that function will be used instead.
*
* Used as a callback by wp_list_comments() for displaying the comments.
*/
function liftoff_comment( $comment, $args, $depth ) {
$GLOBALS['comment'] = $comment;
switch ( $comment->comment_type ) :
case 'pingback' :
case 'trackback' :
// Display trackbacks differently than normal comments.
?>
<li <?php comment_class(); ?> id="comment-<?php comment_ID(); ?>">
<p><?php _e( 'Pingback:', 'liftoff' ); ?> <?php comment_author_link(); ?> <?php edit_comment_link( __( '(Edit)', 'liftoff' ), '<span class="edit-link">', '</span>' ); ?></p>
<?php
break;
default :
// Proceed with normal comments.
global $post;
?>
<li <?php comment_class(); ?> id="li-comment-<?php comment_ID(); ?>">
<article id="comment-<?php comment_ID(); ?>" class="comment">
<header class="comment-meta comment-author vcard">
<?php
echo get_avatar( $comment, 44 );
printf( '<cite class="fn">%1$s %2$s</cite>',
get_comment_author_link(),
// If current post author is also comment author, make it known visually.
( $comment->user_id === $post->post_author ) ? '<span> ' . __( 'Post author', 'liftoff' ) . '</span>' : ''
);
printf( '<a href="%1$s"><time datetime="%2$s">%3$s</time></a>',
esc_url( get_comment_link( $comment->comment_ID ) ),
get_comment_time( 'c' ),
/* translators: 1: date, 2: time */
sprintf( __( '%1$s at %2$s', 'liftoff' ), get_comment_date(), get_comment_time() )
);
?>
</header><!-- .comment-meta -->
<?php if ( '0' == $comment->comment_approved ) : ?>
<p class="comment-awaiting-moderation"><?php _e( 'Your comment is awaiting moderation.', 'liftoff' ); ?></p>
<?php endif; ?>
<section class="comment-content comment">
<?php comment_text(); ?>
<?php edit_comment_link( __( 'Edit', 'liftoff' ), '<p class="edit-link">', '</p>' ); ?>
</section><!-- .comment-content -->
<div class="reply">
<?php comment_reply_link( array_merge( $args, array( 'reply_text' => __( 'Reply', 'liftoff' ), 'after' => ' <span>↓</span>', 'depth' => $depth, 'max_depth' => $args['max_depth'] ) ) ); ?>
</div><!-- .reply -->
</article><!-- #comment-## -->
<?php
break;
endswitch; // end comment_type check
}
endif;
if ( ! function_exists( 'liftoff_entry_date' ) ) :
/**
* Prints HTML with meta information for current date.
*/
function liftoff_entry_date() {
$date = sprintf( '<span title="%1$s" ><time class="entry-date" datetime="%2$s">%3$s</time></span>',
esc_attr( get_the_time() ),
esc_attr( get_the_date( 'c' ) ),
esc_html( get_the_time(get_option('date_format')) )
);
echo $date;
}
endif;
if ( ! function_exists( 'liftoff_entry_meta' ) ) :
/**
* Prints HTML with meta information for current post: categories, tags, permalink, author.
*/
function liftoff_entry_meta() {
// Translators: used between list items, there is a space after the comma.
$categories_list = get_the_category_list( __( ', ', 'liftoff' ) );
// Translators: used between list items, there is a space after the comma.
$tag_list = get_the_tag_list( '', __( ', ', 'liftoff' ) );
$author = sprintf( '<span class="author vcard"><a class="url fn n" href="%1$s" title="%2$s" rel="author">%3$s</a></span>',
esc_url( get_author_posts_url( get_the_author_meta( 'ID' ) ) ),
esc_attr( sprintf( __( 'View all posts by %s', 'liftoff' ), get_the_author() ) ),
get_the_author()
);
// Translators: 1 is author, 2 is category, 3 is tag
if ( $tag_list ) {
$utility_text = __( '<span class="by-author">%1s | </span>Category: <span class="category-list">%2$s</span> | Tags: <span class="tag-list">%3$s</span>', 'liftoff' );
} else {
$utility_text = __( '<span class="by-author">%1s | </span>Category: <span class="category-list">%2$s</span>', 'liftoff' );
}
printf(
$utility_text,
$author,
$categories_list,
$tag_list
);
}
endif;
/**
* Extends the default WordPress body class to denote:
* 1. Using a full-width layout, when no active widgets in the sidebar
* or full-width template.
* 2. Front Page template: thumbnail in use and number of sidebars for
* widget areas.
* 3. White or empty background color to change the layout and spacing.
* 4. Custom fonts enabled.
* 5. Single or multiple authors.
*
*
* @param array Existing class values.
* @return array Filtered class values.
*/
function liftoff_body_class( $classes ) {
$background_color = get_background_color();
if ( ! is_active_sidebar( 'sidebar-1' ) || is_page_template( 'page-templates/full-width.php' ) )
$classes[] = 'full-width';
if ( is_page_template( 'page-templates/front-page.php' ) ) {
$classes[] = 'template-front-page';
if ( has_post_thumbnail() )
$classes[] = 'has-post-thumbnail';
if ( is_active_sidebar( 'sidebar-2' ) && is_active_sidebar( 'sidebar-3' ) )
$classes[] = 'two-sidebars';
}
if ( ! is_multi_author() )
$classes[] = 'single-author';
return $classes;
}
add_filter( 'body_class', 'liftoff_body_class' );
/**
* Adjusts content_width value for full-width and single image attachment
* templates, and when there are no active widgets in the sidebar.
*/
function liftoff_content_width() {
if ( is_page_template( 'page-templates/full-width.php' ) || is_attachment() || ! is_active_sidebar( 'sidebar-1' ) ) {
global $content_width;
$content_width = 960;
}
}
add_action( 'template_redirect', 'liftoff_content_width' );
/**
* Add postMessage support for site title and description for the Theme Customizer.
*
* @param WP_Customize_Manager $wp_customize Theme Customizer object.
* @return void
*/
function liftoff_customize_register( $wp_customize ) {
$wp_customize->get_setting( 'blogname' )->transport = 'postMessage';
$wp_customize->get_setting( 'blogdescription' )->transport = 'postMessage';
}
add_action( 'customize_register', 'liftoff_customize_register' );
/**
* Includes CSS styles set in theme options after default stylesheet
*/
if ( ! function_exists( 'liftoff_custom_css' ) ) :
function liftoff_custom_css() {
$custom_css = '';
# -----------------------------------------------------------------------------
# Custom CSS Styles from Theme Options
# -----------------------------------------------------------------------------
// Text colors
// ----------------------------------------------------------------------------
$link_color = get_options_data('design-settings', 'link-color');
$link_hover = get_options_data('design-settings', 'link-hover-color');
$underline = get_options_data('design-settings', 'underline-links');
$underline_hover = get_options_data('design-settings', 'underline-links-hover');
$link_styles = '';
$hover_styles = '';
// Font Styles
$default_font = get_liftoff_font_styles('font-default');
$heading_font = get_liftoff_font_styles('font-heading');
if ($link_color) $link_styles .= 'color: '. $link_color .';';
if ($underline == 'true') $link_styles .= 'text-decoration: underline;';
if ($link_styles) {
$custom_css .= 'a, .widget-area .widget a:hover, .comments-link a:hover, .entry-meta a:hover, .entry-header .entry-title a:hover, footer[role="contentinfo"] a { '. $link_styles .' }';
$custom_css .= '@media screen and (min-width: 600px) { .main-navigation li ul li a:hover { background-color: '. $link_color .' } }';
}
if ($link_hover) $hover_styles .= 'color: '. $link_hover .';';
if ($underline_hover == 'true') $hover_styles .= 'text-decoration: underline;';
if ($hover_styles) {
$custom_css .= 'a:hover, footer[role="contentinfo"] a:hover { '. $hover_styles .' }';
}
if ($default_font) $custom_css .= 'body { '. $default_font .' }';
if ($heading_font) $custom_css .= 'h1, h2, h3, h4, h5, h6, .entry-header .entry-title a { '. $heading_font .' }';
// Header styles (text color, backgrounds, etc.)
// ----------------------------------------------------------------------------
$header_color = get_options_data('design-settings', 'header-text-color');
$header_background = get_options_data('design-settings', 'header-background-color');
$header_image = get_options_data('design-settings', 'header-background-image');
$header_pos_x = get_options_data('design-settings', 'header-background-image-pos-x', 'left');
$header_pos_y = get_options_data('design-settings', 'header-background-image-pos-y', 'top');
$header_repeat = get_options_data('design-settings', 'header-background-image-repeat', 'no-repeat');
$header_styles = '';
if ($header_color) $header_styles .= 'color: '. $header_color .';';
if ($header_background) $header_styles .= 'background-color: '. $header_background .';';
if ($header_image) {
$header_styles .= 'background-image: url('. $header_image .');';
if ($header_repeat == 'fixed') {
$header_pos = $header_repeat;
$header_repeat = 'no-repeat';
} else {
$header_pos = $header_pos_x .' '. $header_pos_y;
}
$header_styles .= 'background-position: '. $header_pos .';';
$header_styles .= 'background-repeat: '. $header_repeat .';';
}
if ($header_styles) {
$custom_css .= '#masthead { '. $header_styles .' }';
}
// Logo
// ----------------------------------------------------------------------------
if ($header_color) {
$custom_css .= '.site-header h1 a, .site-header h2 a, .site-header h1 a:hover, .site-header h2 a:hover { color: '. $header_color .' }';
}
// Footer styles (text color, backgrounds, etc.)
// ----------------------------------------------------------------------------
$footer_color = get_options_data('design-settings', 'footer-text-color');
$footer_background = get_options_data('design-settings', 'footer-background-color');
$footer_image = get_options_data('design-settings', 'footer-background-image');
$footer_pos_x = get_options_data('design-settings', 'footer-background-image-pos-x');
$footer_pos_y = get_options_data('design-settings', 'footer-background-image-pos-y');
$footer_repeat = get_options_data('design-settings', 'footer-background-image-repeat');
$footer_styles = '';
if ($footer_color) $footer_styles .= 'color: '. $footer_color .';';
if ($footer_background) $footer_styles .= 'background-color: '. $footer_background .';';
if ($footer_image) {
$footer_styles .= 'background-image: url('. $footer_image .');';
if ($footer_repeat == 'fixed') {
$footer_pos = $footer_repeat;
$footer_repeat = 'no-repeat';
} else {
$footer_pos = $footer_pos_x .' '. $footer_pos_y;
}
$footer_styles .= 'background-position: '. $footer_pos .';';
$footer_styles .= 'background-repeat: '. $footer_repeat .';';
}
if ($footer_styles) {
$custom_css .= '#footer { '. $footer_styles .' }';
}
$custom_css .= stripslashes(htmlspecialchars_decode(get_options_data('content-options', 'custom-css')));
// Enqueue the CSS to load in header ( $main_stylesheet_handle, $css_data )
// ----------------------------------------------------------------------------
wp_add_inline_style( 'liftoff-style', $custom_css );
}
endif;
add_action( 'wp_enqueue_scripts', 'liftoff_custom_css' );
if ( ! function_exists( 'get_liftoff_font_styles' ) ) :
function get_liftoff_font_styles( $alias = false ) {
if ($alias) {
$font = array();
$font_family = '';
$font['family'] = get_options_data('design-settings', $alias);
if ($font['family'] == 'google') {
// Google font
$font = get_options_data('design-settings', $alias.'-google'); // returns: array( 'family', 'style', 'weight', 'size', 'color' )
// Load the font
$googleFont = $font['family'] .':'. $font['weight'];
if ($font['style'] == 'italic') {
$googleFont .= ','.$font['weight'].'italic';
}
$google_family = str_replace(' ', '+', $googleFont); // make ready for query string
$protocol = is_ssl() ? 'https' : 'http';
$subsets = 'latin,latin-ext';
$query_args = array( 'family' => $google_family, 'subset' => $subsets );
wp_enqueue_style( 'google-font-'.sanitize_key($google_family), add_query_arg( $query_args, "$protocol://fonts.googleapis.com/css" ), array(), null );
} else {
// Standard font styles
$font['style'] = get_options_data('design-settings', $alias.'-style');
$font['size'] = get_options_data('design-settings', $alias.'-size');
$font['color'] = get_options_data('design-settings', $alias.'-color');
// set the font weight & style
switch ($font['style']) {
case 'bold':
$font['style'] = 'normal';
$font['weight'] = 'bold';
break;
case 'italic':
$font['style'] = 'italic';
$font['weight'] = 'normal';
break;
case 'bold-italic':
$font['style'] = 'italic';
$font['weight'] = 'bold';
break;
default:
$font['weight'] = 'normal';
break;
}
}
// Error checking values
if (empty($font['color']) || $font['color'] == '#') {
$font['color'] = '#333';
}
if (is_numeric($font['size'])) {
$font['size'] += 'px';
}
if ($font['family'] !== 'default') {
$font_family = 'font-family: "'.$font['family'].'";';
}
// Create the CSS styles
$css = $font_family.' font-style: '.$font['style'].'; font-weight: '.$font['weight'].'; font-size: '.$font['size'].'; color: '.$font['color'].';';
return $css;
}
}
endif;