hoponhopofftickets/astra-child-hoponhopoff/functions.php

<?php
/**
 * Hop On Hop Off — Astra child theme.
 *
 * Replaces the Astra header/footer with the "Hop On Hop Off" design and loads
 * the scoped chrome stylesheet + SVG icon sprite site-wide.
 */
defined( 'ABSPATH' ) || exit;

/**
 * Styles & scripts.
 */
add_action( 'wp_enqueue_scripts', function () {
	// Parent (Astra) base styles.
	wp_enqueue_style( 'astra-parent', get_template_directory_uri() . '/style.css', array(), null );

	// Design typeface (same as the plugin's pages).
	wp_enqueue_style( 'hoho-fonts', 'https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;700;800&display=swap', array(), null );

	// Header/footer design, scoped to .hoho so it can't fight Astra. Depend on
	// the Astra stylesheet (when present) so our rules load AFTER it and win ties.
	$deps = array( 'astra-parent' );
	if ( wp_style_is( 'astra-theme-css', 'registered' ) ) {
		$deps[] = 'astra-theme-css';
	}
	wp_enqueue_style( 'hoho-chrome', get_stylesheet_directory_uri() . '/assets/chrome.css', $deps, '1.0.2' );

	// Header interactions: burger, submenu, sticky, back-to-top, search toggle.
	wp_enqueue_script( 'hoho-chrome', get_stylesheet_directory_uri() . '/assets/chrome.js', array(), '1.0.2', true );

	wp_add_inline_style(
		'hoho-chrome',
		implode(
			'',
			array(
				// Solid, sticky header on pages without a hero to overlay (added by
				// chrome.js as .is-solid) so it stays readable and doesn't cover content.
				'.hoho .site-header.is-solid{position:sticky;inset-block-start:0;padding-block:var(--sp-2);background:rgba(0,0,0,.85);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);}',
				// Force the design font over Astra inside the header/footer.
				'.hoho,.hoho h1,.hoho h2,.hoho h3,.hoho p,.hoho a,.hoho span,.hoho li,.hoho button,.hoho input{font-family:"Plus Jakarta Sans",system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;}',
				// Normalize: stop Astra decorating header/footer links & lists.
				'.hoho a,.hoho.hoho a{text-decoration:none!important;box-shadow:none!important;}',
				'.hoho a:not(.btn){color:inherit;}',
				'.hoho :is(ul,ol){list-style:none!important;margin:0!important;padding:0!important;}',
				'.hoho li{margin:0!important;}',
				// Icon buttons: Astra gives <button> a filled background + its own
				// colour, which turned the header search icon into an empty dark
				// circle. Reset them (real .btn buttons keep their styling).
				'.hoho .icon-btn{background:transparent!important;border:0!important;color:#fff!important;padding:.4rem;}',
				'.hoho .site-header .icon{color:#fff;}',
				'.hoho button:not(.btn):not(.burger){background:transparent;border:0;color:inherit;}',
				// Expanding header search field.
				'.hoho .header__search{display:flex;align-items:center;gap:.25rem;}',
				'.hoho .header__search-input{width:0;min-width:0;padding:0;border:0;outline:0;opacity:0;height:var(--control-h);border-radius:var(--r-pill);background:rgba(255,255,255,.15);color:#fff;transition:width .25s var(--ease),opacity .2s var(--ease),padding .25s var(--ease);}',
				'.hoho .header__search.is-open .header__search-input{width:min(52vw,15rem);padding:0 1rem;opacity:1;}',
				'.hoho .header__search-input::placeholder{color:rgba(255,255,255,.7);}',
			)
		)
	);
}, 20 );

/**
 * Theme supports + menu locations.
 */
add_action( 'after_setup_theme', function () {
	add_theme_support( 'custom-logo', array( 'flex-width' => true, 'flex-height' => true ) );
	register_nav_menus(
		array(
			'hoho_primary' => __( 'HoHo — Header Menu', 'hoponhopoff' ),
			'hoho_quick'   => __( 'HoHo — Footer: Quick Access', 'hoponhopoff' ),
			'hoho_tours'   => __( 'HoHo — Footer: Tours', 'hoponhopoff' ),
			'hoho_account' => __( 'HoHo — Footer: User Account', 'hoponhopoff' ),
		)
	);
} );

/**
 * Print the SVG icon sprite once, high in the footer, so <use href="#i-…">
 * resolves everywhere (header, footer, and the plugin's pages).
 */
add_action( 'wp_footer', function () {
	// Reuse the plugin's guarded printer when available, so the sprite is never
	// output twice on plugin pages.
	if ( function_exists( 'vc_print_icon_sprite' ) ) {
		vc_print_icon_sprite();
		return;
	}
	$sprite = get_stylesheet_directory() . '/assets/sprite.svg';
	if ( is_readable( $sprite ) ) {
		echo file_get_contents( $sprite ); // phpcs:ignore
	}
}, 1 );

/**
 * Swap Astra's header/footer markup for ours.
 *
 * Astra prints its header via astra_header_markup() on the `astra_header`
 * action, and its footer via astra_footer_markup() on `astra_footer`. We remove
 * those and render our own template parts. Deferred to `wp` so Astra's parent
 * functions.php (which registers the callbacks) has already loaded.
 */
add_action( 'wp', function () {
	if ( function_exists( 'astra_header_markup' ) ) {
		remove_action( 'astra_header', 'astra_header_markup' );
	}
	add_action( 'astra_header', 'hoho_render_header' );

	if ( function_exists( 'astra_footer_markup' ) ) {
		remove_action( 'astra_footer', 'astra_footer_markup' );
	}
	add_action( 'astra_footer', 'hoho_render_footer' );
} );

function hoho_render_header() {
	require get_stylesheet_directory() . '/inc/header.php';
}
function hoho_render_footer() {
	require get_stylesheet_directory() . '/inc/footer.php';
}

require get_stylesheet_directory() . '/inc/nav-walker.php';

/**
 * The logo: a linked WordPress Custom Logo if one is set, otherwise the bundled
 * "Hop On Hop Off" SVG wordmark.
 */
function hoho_logo() {
	$home = esc_url( home_url( '/' ) );
	if ( has_custom_logo() ) {
		$id  = get_theme_mod( 'custom_logo' );
		$img = wp_get_attachment_image( $id, 'full', false, array( 'class' => 'logo' ) );
		if ( $img ) {
			return '<a class="header__logo" href="' . $home . '" aria-label="' . esc_attr( get_bloginfo( 'name' ) ) . '">' . $img . '</a>';
		}
	}
	ob_start();
	?>
	<a class="header__logo" href="<?php echo $home; ?>" aria-label="<?php echo esc_attr( get_bloginfo( 'name' ) ); ?>">
		<?php require get_stylesheet_directory() . '/inc/logo.php'; ?>
	</a>
	<?php
	return ob_get_clean();
}

/**
 * Small helper: inline-icon markup referencing the sprite.
 */
function hoho_icon( $name, $extra = '' ) {
	$name  = preg_replace( '/[^a-z0-9\-]/', '', 'i-' . ltrim( (string) $name, 'i-' ) );
	$class = 'icon' . ( $extra ? ' ' . $extra : '' );
	return '<svg class="' . esc_attr( $class ) . '" aria-hidden="true"><use href="#' . esc_attr( $name ) . '"></use></svg>';
}