From bd63261888d8f37c598cba3b95c148e9906fd49b Mon Sep 17 00:00:00 2001
From: Riad Benguella <youknowriad@git.wordpress.org>
Date: Thu, 16 Jul 2020 11:48:49 +0000
Subject: [PATCH] Block Editor: Add theme support flag to opt-out of Core Block
 Patterns.

WordPress Core comes by default with a number of block patterns and a frequent request was to be able to opt-out of the Core block patterns.
You can now opt-out using remove_theme_support( 'core-block-patterns' )

Props desrosj, nosolosw.
Fixes #50669.


git-svn-id: https://develop.svn.wordpress.org/trunk@48492 602fd350-edb4-49c9-b593-d223f7449a82
---
 src/wp-includes/block-patterns.php | 58 +++++++++++++++++++-----------
 1 file changed, 37 insertions(+), 21 deletions(-)

diff --git a/src/wp-includes/block-patterns.php b/src/wp-includes/block-patterns.php
index fe80dc921c..742db0fc4f 100644
--- a/src/wp-includes/block-patterns.php
+++ b/src/wp-includes/block-patterns.php
@@ -6,27 +6,43 @@
  * @since 5.5.0
  */
 
-$core_block_patterns = array(
-	'text-two-columns',
-	'two-buttons',
-	'two-images',
-	'text-two-columns-with-images',
-	'text-three-columns-buttons',
-	'large-header',
-	'large-header-paragraph',
-	'three-buttons',
-	'quote',
-);
+add_theme_support( 'core-block-patterns' );
 
-foreach ( $core_block_patterns as $core_block_pattern ) {
-	register_block_pattern(
-		'core/' . $core_block_pattern,
-		require __DIR__ . '/block-patterns/' . $core_block_pattern . '.php'
-	);
+/**
+ * Registers the core block patterns and categories.
+ *
+ * @since 5.5.0
+ * @private
+ */
+function _register_core_block_patterns_and_categories() {
+	$should_register_core_patterns = get_theme_support( 'core-block-patterns' );
+
+	if ( $should_register_core_patterns ) {
+		$core_block_patterns = array(
+			'text-two-columns',
+			'two-buttons',
+			'two-images',
+			'text-two-columns-with-images',
+			'text-three-columns-buttons',
+			'large-header',
+			'large-header-paragraph',
+			'three-buttons',
+			'quote',
+		);
+
+		foreach ( $core_block_patterns as $core_block_pattern ) {
+			register_block_pattern(
+				'core/' . $core_block_pattern,
+				require __DIR__ . '/block-patterns/' . $core_block_pattern . '.php'
+			);
+		}
+	}
+
+	register_block_pattern_category( 'buttons', array( 'label' => _x( 'Buttons', 'Block pattern category', 'gutenberg' ) ) );
+	register_block_pattern_category( 'columns', array( 'label' => _x( 'Columns', 'Block pattern category', 'gutenberg' ) ) );
+	register_block_pattern_category( 'gallery', array( 'label' => _x( 'Gallery', 'Block pattern category', 'gutenberg' ) ) );
+	register_block_pattern_category( 'header', array( 'label' => _x( 'Headers', 'Block pattern category', 'gutenberg' ) ) );
+	register_block_pattern_category( 'text', array( 'label' => _x( 'Text', 'Block pattern category', 'gutenberg' ) ) );
 }
 
-register_block_pattern_category( 'buttons', array( 'label' => _x( 'Buttons', 'Block pattern category', 'gutenberg' ) ) );
-register_block_pattern_category( 'columns', array( 'label' => _x( 'Columns', 'Block pattern category', 'gutenberg' ) ) );
-register_block_pattern_category( 'gallery', array( 'label' => _x( 'Gallery', 'Block pattern category', 'gutenberg' ) ) );
-register_block_pattern_category( 'header', array( 'label' => _x( 'Headers', 'Block pattern category', 'gutenberg' ) ) );
-register_block_pattern_category( 'text', array( 'label' => _x( 'Text', 'Block pattern category', 'gutenberg' ) ) );
+add_action( 'init', '_register_core_block_patterns_and_categories' );