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[Font API] Use registered fonts for Block Editor iframe. #49646

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Apr 11, 2023
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31 changes: 19 additions & 12 deletions lib/compat/wordpress-6.2/script-loader.php
Original file line number Diff line number Diff line change
Expand Up @@ -130,26 +130,33 @@ function gutenberg_resolve_assets_override() {
$scripts = ob_get_clean();

/*
* Generate font @font-face styles for the site editor iframe.
* Use the registered font families for printing.
* Generate font @font-face styles for the iframe.
*
* For the Site Editor, use the registered fonts.
* For the Block Editor, use the enqueued fonts.
*/
if ( class_exists( 'WP_Fonts' ) ) {
$wp_fonts = wp_fonts();
$registered = $wp_fonts->get_registered_font_families();
if ( ! empty( $registered ) ) {
$queue = $wp_fonts->queue;
$done = $wp_fonts->done;
$wp_fonts = wp_fonts();
$registered = $wp_fonts->get_registered_font_families();
$is_site_editor = 'site-editor.php' === $pagenow;

$wp_fonts->done = array();
$wp_fonts->queue = $registered;
if ( ! empty( $registered ) ) {
$done = $wp_fonts->done;
$wp_fonts->done = array();
if ( $is_site_editor ) {
$queue = $wp_fonts->queue;
$wp_fonts->queue = $registered;
}

ob_start();
$wp_fonts->do_items();
$styles .= ob_get_clean();

// Reset the Web Fonts API.
$wp_fonts->done = $done;
$wp_fonts->queue = $queue;
// Reset the Fonts API.
$wp_fonts->done = $done;
if ( $is_site_editor ) {
$wp_fonts->queue = $queue;
}
}
}

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