Allow list of enqueued module data to be exposed

src/wp-includes/class-wp-script-modules.php

@@ -265,12 +265,21 @@ public function print_import_map() {
 	 * @return array Array with an `imports` key mapping to an array of script module identifiers and their respective
 	 *               URLs, including the version query.
 	 */
-	private function get_import_map(): array {
+	public function get_import_map(): array {
 		$imports = array();
 		foreach ( $this->get_dependencies( array_keys( $this->get_marked_for_enqueue() ) ) as $id => $script_module ) {
 			$imports[ $id ] = $this->get_src( $id );
 		}
-		return array( 'imports' => $imports );
+		$import_map = array( 'imports' => $imports );
+
+		/**
+		 * Filters the import map before it is returned.
+		 *
+		 * @since 6.8.0
+		 *
+		 * @param array $import_map The import map array containing script module identifiers and their URLs.
+		 */
+		return apply_filters( 'script_modules_import_map', $import_map );
 	}
 
 	/**
@@ -280,7 +289,7 @@ private function get_import_map(): array {
 	 *
 	 * @return array[] Script modules marked for enqueue, keyed by script module identifier.
 	 */
-	private function get_marked_for_enqueue(): array {
+	public function get_marked_for_enqueue(): array {
 		$enqueued = array();
 		foreach ( $this->registered as $id => $script_module ) {
 			if ( true === $script_module['enqueue'] ) {
@@ -503,4 +512,29 @@ public function print_a11y_script_module_html() {
 			. '<div id="a11y-speak-polite" class="a11y-speak-region" aria-live="polite" aria-relevant="additions text" aria-atomic="true"></div>'
 			. '</div>';
 	}
+
+	/**
+	 * Checks if a script module is marked for enqueue.
+	 *
+	 * @since 6.8.0
+	 *
+	 * @param string $id The script module identifier.
+	 * @return bool True if the script module is marked for enqueue, false otherwise.
+	 */
+	public function is_marked_for_enqueue( string $id ): bool {
+		return isset( $this->registered[ $id ] ) && true === $this->registered[ $id ]['enqueue'];
+	}
+
+	/**
+	 * Checks if a script module will be included in the import map.
+	 *
+	 * @since 6.8.0
+	 *
+	 * @param string $id The script module identifier.
+	 * @return bool True if the script module will be included in the import map, false otherwise.
+	 */
+	public function is_marked_for_import( string $id ): bool {
+		$import_map = $this->get_import_map();
+		return isset( $import_map['imports'][ $id ] );
+	}
 }

tests/phpunit/tests/script-modules/wpScriptModules.php

@@ -906,4 +906,39 @@ public static function data_invalid_script_module_data(): array {
 			'string'   => array( 'string' ),
 		);
 	}
+
+	/**
+	 * Tests that is_marked_for_enqueue() correctly identifies enqueued modules.
+	 *
+	 * @ticket 60597
+	 *
+	 * @covers ::is_marked_for_enqueue
+	 */
+	public function test_is_marked_for_enqueue() {
+		$this->script_modules->register( 'foo', '/foo.js' );
+		$this->script_modules->register( 'bar', '/bar.js' );
+		$this->script_modules->enqueue( 'foo' );
+
+		$this->assertTrue( $this->script_modules->is_marked_for_enqueue( 'foo' ) );
+		$this->assertFalse( $this->script_modules->is_marked_for_enqueue( 'bar' ) );
+		$this->assertFalse( $this->script_modules->is_marked_for_enqueue( 'nonexistent' ) );
+	}
+
+	/**
+	 * Tests that is_marked_for_import() correctly identifies modules in the import map.
+	 *
+	 * @ticket 60597
+	 *
+	 * @covers ::is_marked_for_import
+	 */
+	public function test_is_marked_for_import() {
+		$this->script_modules->register( 'foo', '/foo.js' );
+		$this->script_modules->register( 'bar', '/bar.js', array( 'foo' ) );
+		$this->script_modules->register( 'baz', '/baz.js', array( 'bar' ) );
+		$this->script_modules->enqueue( 'baz' );
+
+		$this->assertTrue( $this->script_modules->is_marked_for_import( 'foo' ) );
+		$this->assertTrue( $this->script_modules->is_marked_for_import( 'bar' ) );
+		$this->assertFalse( $this->script_modules->is_marked_for_import( 'nonexistent' ) );
+	}
 }