/* * Copyright 2005 The Apache Software Foundation. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ /* $Id$ */ package org.apache.fop.layoutmgr; import java.util.Iterator; import java.util.List; /** * This class is used to observe Knuth element lists generated within the layout managers. This * is mainly used for the purpose of automated testing. This implementation here does nothing. * Please see the subclass within the test code. */ public class ElementListObserver { private static List activeObservers = null; /** * Adds a new Observer to the list. * @param observer the observer implementation */ public static void addObserver(Observer observer) { if (!isObservationActive()) { activeObservers = new java.util.ArrayList(); } activeObservers.add(observer); } /** * Removes an Observer from the list. This call simply returns if the observer was not on * the list and does nothing. * @param observer the observer to remove */ public static void removeObserver(Observer observer) { if (isObservationActive()) { activeObservers.remove(observer); } } /** * Notifies all registered observers about the element list. * @param elementList the Knuth element list * @param category the category for the element list (example: main, static-content, table-cell) * @param id ID for the element list (may be null) */ public static void observe(List elementList, String category, String id) { if (isObservationActive()) { if (category == null) { throw new NullPointerException("category must not be null"); } Iterator i = activeObservers.iterator(); while (i.hasNext()) { ((Observer)i.next()).observe(elementList, category, id); } } } /** @return true if observation is active, i.e. Observers are registered. */ public static boolean isObservationActive() { return activeObservers != null; } /** * Implement this interface to receive notifications on element lists. */ public interface Observer { /** * Notifies the observer about the element list. * @param elementList the Knuth element list * @param category the category for the element list (example: main, static-content or * table-cell) * @param id ID for the element list (may be null) */ void observe(List elementList, String category, String id); } } g-a-file-from-and-to-a-shared-folder Nextcloud server, a safe home for all your data: https://github.com/nextcloud/serverwww-data
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path: root/apps/files_external/lib/Lib/FrontendDefinitionTrait.php
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<?php
/**
 * @copyright Copyright (c) 2016, ownCloud, Inc.
 *
 * @author Robin Appelman <robin@icewind.nl>
 * @author Robin McCorkell <robin@mccorkell.me.uk>
 * @author Roeland Jago Douma <roeland@famdouma.nl>
 *
 * @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 OCA\Files_External\Lib;

/**
 * Trait for objects that have a frontend representation
 */
trait FrontendDefinitionTrait {

	/** @var string human-readable mechanism name */
	private $text;

	/** @var DefinitionParameter[] parameters for mechanism */
	private $parameters = [];

	/** @var string[] custom JS */
	private $customJs = [];

	/**
	 * @return string
	 */
	public function getText() {
		return $this->text;
	}

	/**
	 * @param string $text
	 * @return $this
	 */
	public function setText($text) {
		$this->text = $text;
		return $this;
	}

	/**
	 * @param FrontendDefinitionTrait $a
	 * @param FrontendDefinitionTrait $b
	 * @return int
	 */
	public static function lexicalCompare(FrontendDefinitionTrait $a, FrontendDefinitionTrait $b) {
		return strcmp($a->getText(), $b->getText());
	}

	/**
	 * @return DefinitionParameter[]
	 */
	public function getParameters() {
		return $this->parameters;
	}

	/**
	 * @param DefinitionParameter[] $parameters
	 * @return self
	 */
	public function addParameters(array $parameters) {
		foreach ($parameters as $parameter) {
			$this->addParameter($parameter);
		}
		return $this;
	}

	/**
	 * @param DefinitionParameter $parameter
	 * @return self
	 */
	public function addParameter(DefinitionParameter $parameter) {
		$this->parameters[$parameter->getName()] = $parameter;
		return $this;
	}

	/**
	 * @return string[]
	 */
	public function getCustomJs() {
		return $this->customJs;
	}

	/**
	 * @param string $custom
	 * @return self
	 */
	public function addCustomJs($custom) {
		$this->customJs[] = $custom;
		return $this;
	}

	/**
	 * Serialize into JSON for client-side JS
	 *
	 * @return array
	 */
	public function jsonSerializeDefinition() {
		$configuration = [];
		foreach ($this->getParameters() as $parameter) {
			$configuration[$parameter->getName()] = $parameter;
		}

		$data = [
			'name' => $this->getText(),
			'configuration' => $configuration,
			'custom' => $this->getCustomJs(),
		];
		return $data;
	}

	/**
	 * Check if parameters are satisfied in a StorageConfig
	 *
	 * @param StorageConfig $storage
	 * @return bool
	 */
	public function validateStorageDefinition(StorageConfig $storage) {
		foreach ($this->getParameters() as $name => $parameter) {
			$value = $storage->getBackendOption($name);
			if (!is_null($value) || !$parameter->isOptional()) {
				if (!$parameter->validateValue($value)) {
					return false;
				}
				$storage->setBackendOption($name, $value);
			}
		}
		return true;
	}
}