get('Version')
);
}
// Enqueue editor styles
add_action( 'enqueue_block_editor_assets', 'enqueue_editor_styles' );
function enqueue_editor_styles() {
wp_enqueue_style(
'caliope-editor-style',
get_stylesheet_directory_uri() . '/editor-style.css',
array(),
wp_get_theme()->get('Version')
);
}
/**
* Add caption (Description) to the featured image in the Single Post template only.
*/
function add_featured_image_caption( $block_content, $block ) {
if ( is_single() && isset($block['blockName']) && 'core/post-featured-image' === $block['blockName'] && has_post_thumbnail() ) {
$thumbnail_id = get_post_thumbnail_id(); // Get the featured image ID
// Retrieve the correct caption (stored in the "Description" field)
$attachment = get_post($thumbnail_id);
$caption = !empty($attachment->post_excerpt) ? $attachment->post_excerpt : '';
// Insert the caption inside the figure tag if it exists
if ( ! empty( $caption ) ) {
$figcaption = '' . wp_kses_post( $caption ) . '';
// Insert the figcaption before the closing tag
$block_content = str_replace( '', $figcaption . '', $block_content );
}
}
return $block_content;
}
add_filter( 'render_block', 'add_featured_image_caption', 10, 2 );
/**
* Future-proof dynamic hiding of ALL parent theme style and typography variations
* Automatically detects all variations from parent theme's /styles/ directory and subdirectories
* This solution adapts to future parent theme updates without requiring code changes
* Preserves ALL child theme custom variations
*/
function hide_parent_theme_variations_dynamic() {
// Only run in admin area
if ( ! is_admin() ) {
return;
}
$parent_variations = array();
$child_variations = array();
// Get parent theme variations
$parent_styles_dir = get_template_directory() . '/styles';
if ( file_exists( $parent_styles_dir ) && is_dir( $parent_styles_dir ) ) {
// Get style variations from root /styles/ directory
$style_variation_files = glob( $parent_styles_dir . '/*.json' );
foreach ( $style_variation_files as $file ) {
$variation_data = json_decode( file_get_contents( $file ), true );
if ( isset( $variation_data['title'] ) && ! empty( $variation_data['title'] ) ) {
$parent_variations[] = $variation_data['title'];
}
}
// Get typography variations from /styles/typography/ subdirectory
$typography_dir = $parent_styles_dir . '/typography';
if ( file_exists( $typography_dir ) && is_dir( $typography_dir ) ) {
$typography_files = glob( $typography_dir . '/*.json' );
foreach ( $typography_files as $file ) {
$variation_data = json_decode( file_get_contents( $file ), true );
if ( isset( $variation_data['title'] ) && ! empty( $variation_data['title'] ) ) {
$parent_variations[] = $variation_data['title'];
}
}
}
// Get variations from any other subdirectories (colors, blocks, sections, etc.)
$subdirectories = array_filter( glob( $parent_styles_dir . '/*' ), 'is_dir' );
foreach ( $subdirectories as $subdir ) {
// Skip typography as we already processed it
if ( basename( $subdir ) === 'typography' ) {
continue;
}
$subdir_files = glob( $subdir . '/*.json' );
foreach ( $subdir_files as $file ) {
$variation_data = json_decode( file_get_contents( $file ), true );
if ( isset( $variation_data['title'] ) && ! empty( $variation_data['title'] ) ) {
$parent_variations[] = $variation_data['title'];
}
}
}
}
// Get child theme variations to preserve them
$child_styles_dir = get_stylesheet_directory() . '/styles';
if ( file_exists( $child_styles_dir ) && is_dir( $child_styles_dir ) ) {
// Get child style variations from root /styles/ directory
$child_style_files = glob( $child_styles_dir . '/*.json' );
foreach ( $child_style_files as $file ) {
$variation_data = json_decode( file_get_contents( $file ), true );
if ( isset( $variation_data['title'] ) && ! empty( $variation_data['title'] ) ) {
$child_variations[] = $variation_data['title'];
}
}
// Get child typography variations from /styles/typography/ subdirectory
$child_typography_dir = $child_styles_dir . '/typography';
if ( file_exists( $child_typography_dir ) && is_dir( $child_typography_dir ) ) {
$child_typography_files = glob( $child_typography_dir . '/*.json' );
foreach ( $child_typography_files as $file ) {
$variation_data = json_decode( file_get_contents( $file ), true );
if ( isset( $variation_data['title'] ) && ! empty( $variation_data['title'] ) ) {
$child_variations[] = $variation_data['title'];
}
}
}
}
// Remove any child theme variations from parent list to avoid hiding custom variations
$parent_variations = array_diff( $parent_variations, $child_variations );
// Fallback for Twenty Twenty-Five if dynamic detection fails
if ( empty( $parent_variations ) ) {
$parent_variations = array(
'Evening', 'Noon', 'Dusk', 'Afternoon', 'Twilight', 'Morning', 'Sunrise', 'Midnight',
'Beiruti & Literata', 'Vollkorn & Fira Code', 'Platypi & Ysabeau Office',
'Roboto Slab & Manrope', 'Literata & Ysabeau Office', 'Platypi & Literata', 'Literata & Fira Sans'
);
// Remove any child theme variations from fallback list too
$parent_variations = array_diff( $parent_variations, $child_variations );
}
// Remove duplicates and ensure we have unique variations
$parent_variations = array_unique( $parent_variations );
// Only proceed if we have parent variations to hide
if ( empty( $parent_variations ) ) {
return;
}
// Generate CSS to hide only parent theme variations
echo '';
// Generate JavaScript with dynamic variation list
echo '';
}
add_action( 'admin_head', 'hide_parent_theme_variations_dynamic' );
/**
* Dynamically set site logo image via CSS (fallback method)
* This makes the logo work programmatically on any site using this theme
*/
function add_dynamic_site_logo_css() {
// Only add CSS override if no custom logo is set
if ( ! has_custom_logo() ) {
// Get the theme directory URI
$theme_uri = get_stylesheet_directory_uri();
$logo_url = $theme_uri . '/assets/images/ufrj-horizontal-cor-rgb-telas.png';
// Output the CSS with the dynamic URL
echo '';
}
}
// Add the CSS to both frontend and admin
add_action( 'wp_head', 'add_dynamic_site_logo_css' );
add_action( 'admin_head', 'add_dynamic_site_logo_css' );
/**
* Set default site logo when theme is activated or if no logo is set
*/
function set_default_site_logo() {
// Check if site logo is already set
if ( ! has_custom_logo() ) {
// Path to the default logo in the theme
$logo_path = get_stylesheet_directory() . '/assets/images/ufrj-horizontal-cor-rgb-telas.png';
// Check if the logo file exists
if ( file_exists( $logo_path ) ) {
// Upload the logo to the media library
$upload_dir = wp_upload_dir();
$image_data = file_get_contents( $logo_path );
$filename = basename( $logo_path );
// Check if file already exists in uploads
$existing_attachment = get_posts( array(
'post_type' => 'attachment',
'meta_query' => array(
array(
'key' => '_wp_attached_file',
'value' => $filename,
'compare' => 'LIKE'
)
),
'posts_per_page' => 1
) );
if ( ! empty( $existing_attachment ) ) {
// Use existing attachment
$attachment_id = $existing_attachment[0]->ID;
} else {
// Upload new file
if ( wp_mkdir_p( $upload_dir['path'] ) ) {
$file = $upload_dir['path'] . '/' . $filename;
} else {
$file = $upload_dir['basedir'] . '/' . $filename;
}
file_put_contents( $file, $image_data );
// Create attachment
$wp_filetype = wp_check_filetype( $filename, null );
$attachment = array(
'post_mime_type' => $wp_filetype['type'],
'post_title' => 'UFRJ Logo',
'post_content' => '',
'post_status' => 'inherit'
);
$attachment_id = wp_insert_attachment( $attachment, $file );
// Generate attachment metadata
require_once( ABSPATH . 'wp-admin/includes/image.php' );
$attach_data = wp_generate_attachment_metadata( $attachment_id, $file );
wp_update_attachment_metadata( $attachment_id, $attach_data );
}
// Set as site logo
set_theme_mod( 'custom_logo', $attachment_id );
}
}
}
// Set default logo on theme activation
add_action( 'after_switch_theme', 'set_default_site_logo' );
// Also check and set logo on init if not already set (for existing installations)
add_action( 'init', 'set_default_site_logo' );
/**
* Force the logo to always be the default UFRJ logo
* This prevents any programmatic changes to the logo
*/
function force_default_logo( $value ) {
// Get the default logo attachment ID
$default_logo_id = get_option( 'caliope_default_logo_id' );
if ( $default_logo_id ) {
return $default_logo_id;
}
return $value;
}
add_filter( 'theme_mod_custom_logo', 'force_default_logo', 10, 1 );
/**
* Store the default logo ID for reference
*/
function store_default_logo_id() {
if ( ! get_option( 'caliope_default_logo_id' ) ) {
$logo_id = get_theme_mod( 'custom_logo' );
if ( $logo_id ) {
update_option( 'caliope_default_logo_id', $logo_id );
}
}
}
add_action( 'init', 'store_default_logo_id' );
/**
* Override all site logo blocks to use the fixed UFRJ logo
* This affects any site logo block anywhere on the site
*/
function override_site_logo_block( $block_content, $block ) {
// Check if this is a site logo block
if ( isset( $block['blockName'] ) && 'core/site-logo' === $block['blockName'] ) {
// Get the theme logo URL
$logo_url = get_stylesheet_directory_uri() . '/assets/images/ufrj-horizontal-cor-rgb-telas.png';
$site_name = get_bloginfo( 'name' );
$home_url = home_url( '/' );
// Extract any custom classes from the original block
$classes = 'wp-block-site-logo is-default-size';
if ( isset( $block['attrs']['className'] ) ) {
$classes .= ' ' . $block['attrs']['className'];
}
// Extract width if set
$width_style = '';
if ( isset( $block['attrs']['width'] ) ) {
$width_style = 'width: ' . $block['attrs']['width'] . 'px;';
}
// Create the fixed logo HTML
$fixed_logo = sprintf(
'',
esc_attr( $classes ),
esc_url( $home_url ),
esc_url( $logo_url ),
esc_attr( $site_name ),
esc_attr( $width_style )
);
return $fixed_logo;
}
return $block_content;
}
add_filter( 'render_block', 'override_site_logo_block', 10, 2 );