Gutenberg core blocks list

core-blocks.txt

// Útil para filtros de Gutenberg como "allowed_block_types"

archives
audio
button
categories
code
column
columns
coverImage
embed
file
freeform
gallery
heading
html
image
latestComments
latestPosts
list
more
nextpage
paragraph
preformatted
pullquote
quote
reusableBlock
separator
shortcode
spacer
subhead
table
textColumns
verse
video

hidding-blocks.php

<?php

// Filtro para limitar el tipo de bloques que admite un CPT 'libro'.

function scv_allowed_block_types( $allowed_block_types, $post ) {
    if ( $post->post_type === 'libro' ) {
        return array(
          'core/paragraph',
          'core/image',
          'core/list'
        );
    }
    return $allowed_block_types;
}

add_filter( 'allowed_block_types', 'scv_allowed_block_types', 10, 2 );

Since WordPress 5.6 changed the Embed blocks to all variations of the core/embed block they are now no longer being allowed individually by using the allowed_block_types() hook in previous versions of WP.

The below solution works for me if the Gutenberg plugin is installed. Otherwise wait for the release of WP 5.7 in the next few days and those filters will be included into core.

Original thread:
https://wordpress.stackexchange.com/questions/379612/how-to-remove-the-core-embed-blocks-in-wordpress-5-6/380977

To fetch the list of all registered blocks in the JS, we can do something like this:
wp.blocks.getBlockTypes()

you may try this in browser console.

Also, to get a list of blocks for a particular namespace, you may use something like this:

wp.blocks.getBlockTypes().filter((block) => { return block.name.indexOf('core') !== -1});
(This will list all blocks with namespace 'core'

wp.blocks.getBlockTypes()

👍 👏

Hi all, is there a PHP only way (as per above example) to register only certain variations of the embed block?

@troychaplin , @parmarhardip , a bit late but for anyone else who stumbles here, i use this way to disable the (absolutely insane) list of core embeds inside an editor enqueued script

add_action('enqueue_block_editor_assets', function() {
  wp_enqueue_script('theme-block-scripts', get_template_directory_uri() . '/editor.js', ['wp-blocks', 'wp-element']);
});

wp.domReady(function() {
  const dumbEmbedTypes = [
      'smugmug',
      'wolfram-cloud',
      ...
  ];

  dumbEmbedTypes.forEach(type => {
    wp.blocks.unregisterBlockVariation('core/embed', type);
  });
});

I had to add more hooks for js file. Allows only the 'youtube' embed.

add_action('enqueue_block_editor_assets', function() {
  wp_enqueue_script('theme-block-scripts-unregister', get_template_directory_uri() . '/assets/js/admin-embed-block-unregister.js', ['wp-blocks', 'wp-element', 'wp-dom-ready', 'wp-edit-post']);
});

document.addEventListener("DOMContentLoaded", function () {
  wp.domReady(function () {
    const allowedEmbedBlocks = ["youtube"];
    const blocks = wp.blocks.getBlockVariations("core/embed");
    blocks?.forEach(function (blockVariation) {
      if (-1 === allowedEmbedBlocks.indexOf(blockVariation.name)) {
        wp.blocks.unregisterBlockVariation("core/embed", blockVariation.name);
      }
    });
  });
});