Font collection pagination: add min height to avoid infinite number (#…

…59241)

* Add min height to avoid infinite number

* improve syntax

Co-authored-by: Aki Hamano <54422211+t-hamano@users.noreply.github.com>

---------
Co-authored-by: matiasbenedetto <mmaattiiaass@git.wordpress.org>
Co-authored-by: t-hamano <wildworks@git.wordpress.org>
Co-authored-by: carolinan <poena@git.wordpress.org>

packages/edit-site/src/components/global-styles/font-library-modal/font-collection.js

@@ -41,6 +41,9 @@ const DEFAULT_CATEGORY = {
 	slug: 'all',
 	name: _x( 'All', 'font categories' ),
 };
+
+const MIN_WINDOW_HEIGHT = 500;
+
 function FontCollection( { slug } ) {
 	const requiresPermission = slug === 'google-fonts';
 
@@ -118,7 +121,8 @@ function FontCollection( { slug } ) {
 
 	// NOTE: The height of the font library modal unavailable to use for rendering font family items is roughly 417px
 	// The height of each font family item is 61px.
-	const pageSize = Math.floor( ( window.innerHeight - 417 ) / 61 );
+	const windowHeight = Math.max( window.innerHeight, MIN_WINDOW_HEIGHT );
+	const pageSize = Math.floor( ( windowHeight - 417 ) / 61 );
 	const totalPages = Math.ceil( fonts.length / pageSize );
 	const itemsStart = ( page - 1 ) * pageSize;
 	const itemsLimit = page * pageSize;