1 files changed, 67 insertions, 0 deletions
diff --git a/lib/private/Preview/Provider.php b/lib/private/Preview/Provider.php
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+++ b/lib/private/Preview/Provider.php
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+<?php
+/**
+ * @author Georg Ehrke <georg@owncloud.com>
+ * @author Joas Schilling <nickvergessen@owncloud.com>
+ * @author Jörn Friedrich Dreyer <jfd@butonic.de>
+ * @author Olivier Paroz <github@oparoz.com>
+ * @author Robin Appelman <icewind@owncloud.com>
+ *
+ * @copyright Copyright (c) 2016, ownCloud, Inc.
+ * @license AGPL-3.0
+ *
+ * This code is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3,
+ * as published by the Free Software Foundation.
+ *
+ * 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 Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License, version 3,
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ *
+ */
+namespace OC\Preview;
+
+use OCP\Preview\IProvider;
+
+abstract class Provider implements IProvider {
+	private $options;
+
+	/**
+	 * Constructor
+	 *
+	 * @param array $options
+	 */
+	public function __construct(array $options = []) {
+		$this->options = $options;
+	}
+
+	/**
+	 * @return string Regex with the mimetypes that are supported by this provider
+	 */
+	abstract public function getMimeType();
+
+	/**
+	 * Check if a preview can be generated for $path
+	 *
+	 * @param \OCP\Files\FileInfo $file
+	 * @return bool
+	 */
+	public function isAvailable(\OCP\Files\FileInfo $file) {
+		return true;
+	}
+
+	/**
+	 * Generates thumbnail which fits in $maxX and $maxY and keeps the aspect ratio, for file at path $path
+	 *
+	 * @param string $path Path of file
+	 * @param int $maxX The maximum X size of the thumbnail. It can be smaller depending on the shape of the image
+	 * @param int $maxY The maximum Y size of the thumbnail. It can be smaller depending on the shape of the image
+	 * @param bool $scalingup Disable/Enable upscaling of previews
+	 * @param \OC\Files\View $fileview fileview object of user folder
+	 * @return bool|\OCP\IImage false if no preview was generated
+	 */
+	abstract public function getThumbnail($path, $maxX, $maxY, $scalingup, $fileview);
+}