Enable “hide title” toggle checkbox for shop page in Genesis 3.1

[nickcernis]

Genesis 3.1 plans to add a “hide title” toggle. This won't work on the shop page by default, due to WordPress treating it as a product archive rather than a page.

We can make sure the “hide title” checkbox takes effect on the shop page with this code:

add_action( 'woocommerce_before_main_content', 'gencwooc_maybe_hide_title_on_shop_page' );
function gencwooc_maybe_hide_title_on_shop_page() {
	if ( function_exists( 'is_shop' ) && is_shop() ) {
		$title_toggle_enabled = apply_filters( 'genesis_title_toggle_enabled', true );
		$shop_id              = get_option( 'woocommerce_shop_page_id' );
		$title_hidden_on_shop = get_post_meta( $shop_id, '_genesis_hide_title', true );

		if ( $title_toggle_enabled && $title_hidden_on_shop ) {
			add_filter( 'woocommerce_show_page_title', '__return_false' );
		}
	}
}