Snippet: How to lock blocks and prevent your users from unlocking them

[bph]

Discussed in #342

^{Originally posted by ndiego November 18, 2024}
This snippet would provide a very brief overview of the Block Locking API and then show developers how to prevent unlocking in specific contexts:

Post types:

add_filter( 'block_editor_settings_all', function( $settings, $context ) {
    if ( $context->post && 'page' === $context->post->post_type ) {
        $settings['canLockBlocks'] = false;
    }

    return $settings;
}, 10, 2 );

User permissions:

add_filter( 'block_editor_settings_all', function( $settings ) {
    $settings['canLockBlocks'] = current_user_can( 'edit_theme_options' );

    return $settings;
} );

The snippet will also show how to disable access to the Code Editor, so users cannot manipulate the attributes directly.