<?php

namespace MediaWiki\Hook;

use MediaWiki\Content\Content;
use MediaWiki\EditPage\EditPage;

/**
 * This is a hook handler interface, see docs/Hooks.md.
 * Use the hook name "EditPageGetDiffContent" to register handlers implementing this interface.
 *
 * @stable to implement
 * @ingroup Hooks
 */
interface EditPageGetDiffContentHook {
	/**
	 * Use this hook to modify the wikitext that will be used in "Show changes".
	 * Note that it is preferable to implement diff handling for different data types
	 * using the ContentHandler facility.
	 *
	 * @since 1.35
	 *
	 * @param EditPage $editPage
	 * @param Content &$newtext Content that will be used in place of "Show changes"
	 * @return bool|void True or no return value to continue or false to abort
	 */
	public function onEditPageGetDiffContent( $editPage, &$newtext );
}
