| /******************************************************************************* |
| * Copyright (c) 2019 Christian W. Damus and others. |
| * |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * Christian W. Damus - initial API and implementation |
| ******************************************************************************/ |
| package org.eclipse.emf.edapt.history.preferences.ui; |
| |
| import org.eclipse.jface.dialogs.MessageDialogWithToggle; |
| import org.eclipse.jface.preference.IPreferenceStore; |
| |
| /** |
| * An enumeration of preference values for a prompting preference. |
| */ |
| public enum PromptKind { |
| PROMPT(MessageDialogWithToggle.PROMPT), NEVER(MessageDialogWithToggle.NEVER), ALWAYS( |
| MessageDialogWithToggle.ALWAYS); |
| |
| private final String value; |
| |
| private PromptKind(String value) { |
| this.value = value; |
| } |
| |
| /** |
| * Get the value of a preference {@code key} from the given {@code store}. |
| * |
| * @param store the preference store |
| * @param key the preference to get |
| * @return the preference value |
| */ |
| public static PromptKind get(IPreferenceStore store, String key) { |
| store.setDefault(key, PROMPT.value); |
| |
| return getByValue(store.getString(key)); |
| } |
| |
| /** |
| * Get a prompt kind by string value. |
| * |
| * @param value the value |
| * @return the corresponding prompt kind, or {@link #PROMPT} if the {@code value} |
| * is invalid |
| */ |
| public static PromptKind getByValue(String value) { |
| PromptKind result = PROMPT; |
| |
| for (final PromptKind next : values()) { |
| if (next.value.equals(value)) { |
| result = next; |
| break; |
| } |
| } |
| |
| return result; |
| } |
| |
| @Override |
| public String toString() { |
| return value; |
| } |
| |
| } |