Add experimental abilities and workflow palette and move abilities API

docs/manifest.json

@@ -1427,6 +1427,12 @@
 		"markdown_source": "../packages/a11y/README.md",
 		"parent": "packages"
 	},
+	{
+		"title": "@wordpress/abilities",
+		"slug": "packages-abilities",
+		"markdown_source": "../packages/abilities/README.md",
+		"parent": "packages"
+	},
 	{
 		"title": "@wordpress/admin-ui",
 		"slug": "packages-admin-ui",

lib/experimental/workflow-palette.php

@@ -0,0 +1,16 @@
+<?php
+/**
+ * Enqueues the assets required for the Workflow Palette.
+ *
+ * @package gutenberg
+ */
+
+/**
+ * Enqueue workflow palette assets on all admin pages.
+ */
+function gutenberg_enqueue_workflow_palette_assets() {
+	wp_enqueue_script( 'wp-workflow' );
+	wp_enqueue_style( 'wp-workflow' );
+}
+
+add_action( 'admin_enqueue_scripts', 'gutenberg_enqueue_workflow_palette_assets' );

lib/experiments-page.php

@@ -187,6 +187,18 @@ function gutenberg_initialize_experiments_settings() {
 		)
 	);
 
+	add_settings_field(
+		'gutenberg-workflow-palette',
+		__( 'Workflow Palette', 'gutenberg' ),
+		'gutenberg_display_experiment_field',
+		'gutenberg-experiments',
+		'gutenberg_experiments_section',
+		array(
+			'label' => __( 'Enables the Workflow Palette for running workflows composed of abilities, from a unified interface.', 'gutenberg' ),
+			'id'    => 'gutenberg-workflow-palette',
+		)
+	);
+
 	register_setting(
 		'gutenberg-experiments',
 		'gutenberg-experiments'

lib/load.php

@@ -110,6 +110,10 @@ function gutenberg_is_experiment_enabled( $name ) {
 require __DIR__ . '/experimental/pages/gutenberg-boot.php';
 require __DIR__ . '/experimental/posts/load.php';
 
+if ( gutenberg_is_experiment_enabled( 'gutenberg-workflow-palette' ) ) {
+	require __DIR__ . '/experimental/workflow-palette.php';
+}
+
 if ( gutenberg_is_experiment_enabled( 'gutenberg-no-tinymce' ) ) {
 	require __DIR__ . '/experimental/disable-tinymce.php';
 }