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<?php

namespace MediaWiki\Hook;

use MediaWiki\Content\Content;
use MediaWiki\EditPage\EditPage;
use MediaWiki\Parser\ParserOutput;

/**
 * This is a hook handler interface, see docs/Hooks.md.
 * Use the hook name "AlternateEditPreview" to register handlers implementing this interface.
 *
 * @stable to implement
 * @ingroup Hooks
 */
interface AlternateEditPreviewHook {
	/**
	 * This hook is called before generating the preview of the page when editing
	 * ( EditPage::getPreviewText() ).
	 *
	 * @since 1.35
	 *
	 * @param EditPage $editPage
	 * @param Content &$content Content object for the text field from the edit page
	 * @param string &$previewHTML Text to be placed into the page for the preview
	 * @param ParserOutput &$parserOutput ParserOutput object for the preview
	 * @return bool|void True or no return value to continue, or false and set $previewHTML and
	 *   $parserOutput to output custom page preview HTML
	 */
	public function onAlternateEditPreview( $editPage, &$content, &$previewHTML,
		&$parserOutput
	);
}

/var/www/html/1c732/../mediawiki/includes/externalstore/../Hook/AlternateEditPreviewHook.php