<?php
/**
 * Fake handler for DjVu images.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 * http://www.gnu.org/copyleft/gpl.html
 *
 * @file
 * @ingroup Media
 */

class MockDjVuHandler extends DjVuHandler {
	public function isEnabled() {
		return true;
	}

	public function doTransform( $image, $dstPath, $dstUrl, $params, $flags = 0 ) {
		if ( !$this->normaliseParams( $image, $params ) ) {
			return new TransformParameterError( $params );
		}
		$width = $params['width'];
		$height = $params['height'];
		$page = $params['page'];
		if ( $page > $this->pageCount( $image ) ) {
			return new MediaTransformError(
				'thumbnail_error',
				$width,
				$height,
				wfMessage( 'djvu_page_error' )->text()
			);
		}

		$params = [
			'width' => $width,
			'height' => $height,
			'page' => $page
		];

		return new ThumbnailImage( $image, $dstUrl, $dstPath, $params );
	}
}
