Bless you helpful hipster cranberry!

: Clippy, bash / zsh commands, CSS Color

⚐ Wordpress

Disabling & changing default Gutenberg features

Only allow certain types of blocks (aka ‚remove‘ blocks)

👉  allowed_block_types hook

add_filter( 'allowed_block_types', 'slug_allowed_block_types' );
 
function slug_allowed_block_types( $allowed_blocks ) {
 
	return array(
		'core/image',
		'core/paragraph',
		'core/heading',
		'core/list'
	);
 
}

Takes $post as a second parameter, so the allowed blocks can be set on a per post-type basis

add_filter( 'allowed_block_types', 'slug_allowed_block_types', 10, 2 );
 
function slug_allowed_block_types( $allowed_blocks, $post ) {
 
	$allowed_blocks = array(
		'core/image',
		// ...
	);

 
	if( $post->post_type === 'page' ) {
		$allowed_blocks[] = 'core/shortcode';
	}
 
	return $allowed_blocks;
 
}

Note:

  • block list is empty on default
  • allowed blocks per template via if( 'page-template-name.php' == get_page_template_slug( $post ){ ... } but is only aplied when page with template already has been saved.
  • for block slug see Misha Rudrastyhs collection

Source: Misha Rudrastyh: Removing Default Gutenberg Blocks

Disable default WP block styles

function slug_remove_gutenberg_default_styles() {
	if( !is_admin() ){
		wp_dequeue_style( 'wp-block-library');
	}
}
add_action( 'wp_print_styles', 'slug_remove_gutenberg_default_styles' );

(duplicate of Gutenberg notes entry)

Disable color palettes

// Disable color palette.
add_theme_support( 'editor-color-palette' );

// Disable color picker.
add_theme_support( 'disable-custom-colors' );

Note: As with all add_theme_support methods hook into after_setup_theme

Source: Theme Coder

Block Templates

Predefined blocks per post type.

function slug_add_template_to_page() {
	$post_type_object = get_post_type_object( 'page' );	
	
    $post_type_object->template = array(
        array( 'core/paragraph', array(
            'placeholder' => 'Add Description...',
		) ),
		array( 'core/image', array(
        ) ),
    );
    $post_type_object->template_lock = 'all';
}
add_action( 'init', 'slug_add_template_to_page' );
  • ->template-lock :
    • 'all' : prevents all block manipulation (changing order adding, removing)
    • 'insert' : prevents inserting or removing blocks but allows chaning the order

Block Templates

See also