woocommerce/includes/admin/meta-boxes/views/html-product-data-panel.php

<?php
/**
 * Product data meta box.
 *
 * @package WooCommerce/Admin
 */

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}
?>

<div class="panel-wrap product_data">

	<span class="type_box hidden"> &mdash;
		<label for="product-type">
			<select id="product-type" name="product-type">
				<optgroup label="<?php esc_attr_e( 'Product Type', 'woocommerce' ); ?>">
				<?php foreach ( wc_get_product_types() as $value => $label ) : ?>
					<option value="<?php echo esc_attr( $value ); ?>" <?php echo selected( $product_object->get_type(), $value, false ); ?>><?php echo esc_html( $label ); ?></option>
				<?php endforeach; ?>
				</optgroup>
			</select>
		</label>

		<?php
		foreach ( self::get_product_type_options() as $key => $option ) :
			if ( metadata_exists( 'post', $post->ID, '_' . $key ) ) {
				$selected_value = is_callable( array( $product_object, "is_$key" ) ) ? $product_object->{"is_$key"}() : 'yes' === get_post_meta( $post->ID, '_' . $key, true );
			} else {
				$selected_value = 'yes' === ( isset( $option['default'] ) ? $option['default'] : 'no' );
			}
			?>
			<label for="<?php echo esc_attr( $option['id'] ); ?>" class="<?php echo esc_attr( $option['wrapper_class'] ); ?> tips" data-tip="<?php echo esc_attr( $option['description'] ); ?>">
				<?php echo esc_html( $option['label'] ); ?>:
				<input type="checkbox" name="<?php echo esc_attr( $option['id'] ); ?>" id="<?php echo esc_attr( $option['id'] ); ?>" <?php echo checked( $selected_value, true, false ); ?> />
			</label>
		<?php endforeach; ?>
	</span>

	<ul class="product_data_tabs wc-tabs">
		<?php foreach ( self::get_product_data_tabs() as $key => $tab ) : ?>
			<li class="<?php echo esc_attr( $key ); ?>_options <?php echo esc_attr( $key ); ?>_tab <?php echo esc_attr( isset( $tab['class'] ) ? implode( ' ', (array) $tab['class'] ) : '' ); ?>">
				<a href="#<?php echo esc_attr( $tab['target'] ); ?>"><span><?php echo esc_html( $tab['label'] ); ?></span></a>
			</li>
		<?php endforeach; ?>
		<?php do_action( 'woocommerce_product_write_panel_tabs' ); ?>
	</ul>

	<?php
		self::output_tabs();
		self::output_variations();
		do_action( 'woocommerce_product_data_panels' );
		wc_do_deprecated_action( 'woocommerce_product_write_panels', array(), '2.6', 'Use woocommerce_product_data_panels action instead.' );
	?>
	<div class="clear"></div>
</div>