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wp-content/plugins/sitepress-multilingual-cms/compatibility/twentyseventeen/class-wpml-compatibility-2017.php

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+<?php
+
+/**
+ * Class WPML_Compatibility_2017
+ *
+ * # Compatbility class for 2017 theme
+ *
+ * ## Why is this needed?
+ *
+ * When configuring 2017 to use a static page, you can define sections in these pages.
+ * Each section is another page and the value is stored with the ID of that page.
+ * In order to display the sections in the current language, WPML needs to know the IDs of the translated pages.
+ *
+ * ## How this works?
+ *
+ * WPML tries to retrieve the number of Frontpage panels and, for each of them, will add a filter to translate the ID with the one in the current language, if any.
+ *
+ * This class is loaded and instantiated by `plugins-integration.php` only if the `twentyseventeen_panel_count` function exists and the `twentyseventeen_translate_panel_id` does not.
+ */
+class WPML_Compatibility_2017 {
+	function init_hooks() {
+		/**
+		 * @phpstan-ignore-next-line
+		 */
+		$num_sections = twentyseventeen_panel_count();
+
+		for ( $i = 1; $i <= $num_sections; $i ++ ) {
+			/**
+			 * @see  `get_theme_mod` documentation
+			 * @link https://codex.wordpress.org/Function_Reference/get_theme_mod
+			 * @link https://codex.wordpress.org/Plugin_API/Filter_Reference/theme_mod_$name
+			 */
+			add_filter( 'theme_mod_panel_' . $i, array( $this, 'get_translated_panel_id' ) );
+		}
+	}
+
+	function get_translated_panel_id( $id ) {
+		/**
+		 * Get the translated ID of the given page using the `wpml_object_id` filter and returns the original if the translation is missing
+		 *
+		 * @see https://wpml.org/wpml-hook/wpml_object_id/
+		 */
+		return apply_filters( 'wpml_object_id', $id, 'page', true );
+	}
+}