From e5707af4297db9e0cf0d371b65560a8990dd4a6d Mon Sep 17 00:00:00 2001
From: Weston Ruter <westonruter@git.wordpress.org>
Date: Thu, 7 Jan 2016 06:05:07 +0000
Subject: [PATCH] Customizer: Call `_doing_it_wrong()` if `widgets` or
 `nav_menus` are manually removed via `WP_Customize_Manager::remove_panel()`.

Advise that the `customize_loaded_components` filter should be used instead.

Props voldemortensen.
See #33552.
Fixes #35242.


git-svn-id: https://develop.svn.wordpress.org/trunk@36216 602fd350-edb4-49c9-b593-d223f7449a82
---
 src/wp-includes/class-wp-customize-manager.php | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/wp-includes/class-wp-customize-manager.php b/src/wp-includes/class-wp-customize-manager.php
index 2653247aed..e556f5ee27 100644
--- a/src/wp-includes/class-wp-customize-manager.php
+++ b/src/wp-includes/class-wp-customize-manager.php
@@ -1198,6 +1198,18 @@ final class WP_Customize_Manager {
 	 * @param string $id Panel ID to remove.
 	 */
 	public function remove_panel( $id ) {
+		$core_panels = array(
+			'widgets',
+			'nav_menus',
+		);
+		if ( in_array( $id, $core_panels, true ) ) {
+			$url = 'https://core.trac.wordpress.org/ticket/33552#comment:12';
+			_doing_it_wrong(
+				__METHOD__,
+				sprintf( __( 'Removing %1$s manually will cause PHP warnings. Use the <code>customize_loaded_components</code> filter instead. See <a href="%2$s">%2$s</a>.' ), $id, $url ),
+				'4.5'
+			);
+		}
 		unset( $this->panels[ $id ] );
 	}