From 7af187e52bc46d5bec76896ac918c41ad4f386ae Mon Sep 17 00:00:00 2001
From: Miguel Torres <1233880+mmtr@users.noreply.github.com>
Date: Mon, 16 Dec 2024 16:06:53 +0100
Subject: [PATCH] Duplicate views: Hide "View" switcher (#40595)

---
 .../update-hide-switcher-duplicated-views     |  4 ++++
 .../wpcom-admin-interface.php                 | 20 +++++++++++++++++++
 2 files changed, 24 insertions(+)
 create mode 100644 projects/packages/jetpack-mu-wpcom/changelog/update-hide-switcher-duplicated-views

diff --git a/projects/packages/jetpack-mu-wpcom/changelog/update-hide-switcher-duplicated-views b/projects/packages/jetpack-mu-wpcom/changelog/update-hide-switcher-duplicated-views
new file mode 100644
index 0000000000000..6c2c108ea3e4b
--- /dev/null
+++ b/projects/packages/jetpack-mu-wpcom/changelog/update-hide-switcher-duplicated-views
@@ -0,0 +1,4 @@
+Significance: patch
+Type: changed
+
+Admin menu: Hide dashboard switcher when WP Admin view is enforced
diff --git a/projects/packages/jetpack-mu-wpcom/src/features/wpcom-admin-interface/wpcom-admin-interface.php b/projects/packages/jetpack-mu-wpcom/src/features/wpcom-admin-interface/wpcom-admin-interface.php
index 1e1b3c0d5e033..cabfcca1dfe58 100644
--- a/projects/packages/jetpack-mu-wpcom/src/features/wpcom-admin-interface/wpcom-admin-interface.php
+++ b/projects/packages/jetpack-mu-wpcom/src/features/wpcom-admin-interface/wpcom-admin-interface.php
@@ -191,6 +191,26 @@ function wpcom_admin_get_user_option_jetpack( $value ) {
 add_filter( 'get_user_option_jetpack_admin_menu_preferred_views', 'wpcom_admin_get_user_option_jetpack' );
 add_filter( 'pre_option_wpcom_admin_interface', 'wpcom_admin_interface_pre_get_option', 10 );
 
+/**
+ * Hides the "View" switcher on WP Admin screens enforced by the "Remove duplicate views" experiment.
+ */
+function wpcom_duplicate_views_hide_view_switcher() {
+	if ( ! function_exists( '\Automattic\Jetpack\Masterbar\get_admin_menu_class' ) || ! function_exists( '\Automattic\Jetpack\Masterbar\should_customize_nav' ) ) {
+		return;
+	}
+
+	$admin_menu_class = apply_filters( 'jetpack_admin_menu_class', \Automattic\Jetpack\Masterbar\get_admin_menu_class() );
+	if ( \Automattic\Jetpack\Masterbar\should_customize_nav( $admin_menu_class ) ) {
+		$admin_menu = $admin_menu_class::get_instance();
+
+		$current_screen = wpcom_admin_get_current_screen();
+		if ( in_array( $current_screen, WPCOM_DUPLICATED_VIEW, true ) && wpcom_is_duplicate_views_experiment_enabled() ) {
+			remove_filter( 'in_admin_header', array( $admin_menu, 'add_dashboard_switcher' ) );
+		}
+	}
+}
+add_action( 'admin_init', 'wpcom_duplicate_views_hide_view_switcher' );
+
 /**
  * Determines whether the admin interface has been recently changed by checking the presence of the `admin-interface-changed` query param.
  *