Add migration from Pressbooks Publisher (fix #53). (#55)

inc/activation/namespace.php

@@ -6,8 +6,28 @@
 
 namespace Aldine\Activation;
 
+/**
+ * Create default page content, importing from Pressbooks Publisher, if possible.
+ */
 function create_default_content() {
 	if ( ! get_option( 'pb_aldine_activated' ) ) {
+		$mods = get_option( 'theme_mods_pressbooks-publisher' );
+		if ( $mods === false ) {
+			$mods = get_option( 'mods_pressbooks-publisher' );
+		}
+		if ( $mods && isset( $mods['pressbooks_publisher_intro_textbox'] ) ) {
+			$home_content = apply_filters( 'the_content', $mods['pressbooks_publisher_intro_textbox'] );
+		} else {
+			$home_content = apply_filters(
+				'pb_root_home_page_content',
+				sprintf(
+					'<h2>%1$s</h2><p>%2$s</p><p><a class="call-to-action" href="/about/">%3$s</a></p>',
+					__( 'About Pressbooks', 'pressbooks-aldine' ),
+					__( 'Pressbooks is easy-to-use book writing software that lets you create a book in all the formats you need to publish.', 'pressbooks-aldine' ),
+					__( 'Learn More', 'pressbooks-aldine' )
+				)
+			);
+		}
 
 		$default_pages = [
 			'about' => [
@@ -49,14 +69,9 @@ function create_default_content() {
 			],
 			'home' => [
 				'post_title' => __( 'Home', 'pressbooks-aldine' ),
-				'post_content' => apply_filters(
-					'pb_root_home_page_content',
-					sprintf(
-						'<div class="block block--standard"><h2>%1$s</h2><p>%2$s</p><p><a class="button" href="/about/">%3$s</a></p></div>',
-						__( 'About Pressbooks', 'pressbooks-aldine' ),
-						__( 'Pressbooks is easy-to-use book writing software that lets you create a book in all the formats you need to publish.', 'pressbooks-aldine' ),
-						__( 'Learn More', 'pressbooks-aldine' )
-					)
+				'post_content' => sprintf(
+					'<div class="page-section">%s</div>',
+					$home_content
 				),
 			],
 		];
@@ -78,15 +93,9 @@ function create_default_content() {
 		update_option( 'page_on_front', $pages['home'] );
 
 		// Remove content generated by wp_install_defaults
-		if ( ! wp_delete_post( 1, true ) ) {
-			return;
-		}
-		if ( ! wp_delete_post( 2, true ) ) {
-			return;
-		}
-		if ( ! wp_delete_comment( 1, true ) ) {
-			return;
-		}
+		wp_delete_post( 1, true );
+		wp_delete_post( 2, true );
+		wp_delete_comment( 1, true );
 
 		// Add "pb_aldine_activated" option to enable check above
 		add_option( 'pb_aldine_activated', 1 );