12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364 |
- /*
- * Copyright (c) 2006-2017 DMDirc Developers
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated
- * documentation files (the "Software"), to deal in the Software without restriction, including without limitation the
- * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
- * WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS
- * OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
- * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
- package com.dmdirc.addons.ui_swing;
-
- import java.awt.event.ActionEvent;
-
- import javax.swing.AbstractAction;
- import javax.swing.undo.CannotUndoException;
- import javax.swing.undo.UndoManager;
-
- import org.slf4j.Logger;
- import org.slf4j.LoggerFactory;
-
- import static com.dmdirc.util.LogUtils.USER_ERROR;
-
- /**
- * Handles undo's on text components.
- */
- public final class UndoAction extends AbstractAction {
-
- private static final Logger LOG = LoggerFactory.getLogger(UndoAction.class);
- /** A version number for this class. */
- private static final long serialVersionUID = 1;
- /** Undo manager. */
- private final UndoManager undoManager;
-
- /**
- * Creates a new instance of UndoAction.
- *
- * @param undoManager UndoManager to use for this redo action
- */
- public UndoAction(final UndoManager undoManager) {
- super("Undo");
-
- this.undoManager = undoManager;
- }
-
- @Override
- public void actionPerformed(final ActionEvent evt) {
- try {
- if (undoManager.canUndo()) {
- undoManager.undo();
- }
- } catch (CannotUndoException ex) {
- LOG.info(USER_ERROR, "Unable to undo", ex);
- }
- }
-
- }
|