twentyseventeen_front_page_section( WP_Customize_Partial $partial = null, int $id = 0 )

142function twentyseventeen_front_page_section( $partial = null, $id = 0 ) {143	if ( $partial instanceof WP_Customize_Partial ) {144		// Find out the ID and set it up during a selective refresh.145		global $twentyseventeencounter;146 147		$id = str_replace( 'panel_', '', $partial->id );148 149		$twentyseventeencounter = $id;150	}151 152	// Only when in Customizer, use a placeholder for an empty panel.153	$show_panel_placeholder = false;154 155	global $post; // Modify the global post object before setting up post data.156	if ( get_theme_mod( 'panel_' . $id ) ) {157		$post = get_post( get_theme_mod( 'panel_' . $id ) );158		setup_postdata( $post );159		set_query_var( 'panel', $id );160 161		if ( $post && in_array( $post->post_status, array( 'publish', 'private' ), true ) ) {162			get_template_part( 'template-parts/page/content', 'front-page-panels' );163		} elseif ( is_customize_preview() ) {164			$show_panel_placeholder = true;165		}166 167		wp_reset_postdata();168	} elseif ( is_customize_preview() ) {169		$show_panel_placeholder = true;170	}171 172	if ( $show_panel_placeholder ) {173		// The output placeholder anchor.174		printf(175			'<article class="panel-placeholder panel twentyseventeen-panel twentyseventeen-panel%1$s" id="panel%1$s">' .176			'<span class="twentyseventeen-panel-title">%2$s</span></article>',177			$id,178			/* translators: %s: The section ID. */179			sprintf( __( 'Front Page Section %s Placeholder', 'twentyseventeen' ), $id )180		);181	}182}