/*******************************************************************************
* Copyright (c) 2012-2017 Codenvy, S.A.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Codenvy, S.A. - initial API and implementation
*******************************************************************************/
package org.eclipse.che.ide.actions;
import com.google.inject.Inject;
import org.eclipse.che.ide.CoreLocalizationConstant;
import org.eclipse.che.ide.Resources;
import org.eclipse.che.ide.api.action.AbstractPerspectiveAction;
import org.eclipse.che.ide.api.action.ActionEvent;
import org.eclipse.che.ide.api.editor.EditorAgent;
import org.eclipse.che.ide.api.editor.EditorPartPresenter;
import org.eclipse.che.ide.api.editor.texteditor.HandlesUndoRedo;
import org.eclipse.che.ide.api.editor.texteditor.UndoableEditor;
import javax.validation.constraints.NotNull;
import java.util.Arrays;
import static org.eclipse.che.ide.workspace.perspectives.project.ProjectPerspective.PROJECT_PERSPECTIVE_ID;
/**
* Undo Action
*
* @author Roman Nikitenko
* @author Dmitry Shnurenko
*/
public class UndoAction extends AbstractPerspectiveAction {
private EditorAgent editorAgent;
@Inject
public UndoAction(EditorAgent editorAgent,
CoreLocalizationConstant localization,
Resources resources) {
super(Arrays.asList(PROJECT_PERSPECTIVE_ID), localization.undoName(), localization.undoDescription(), null, resources.undo());
this.editorAgent = editorAgent;
}
@Override
public void actionPerformed(ActionEvent e) {
EditorPartPresenter activeEditor = editorAgent.getActiveEditor();
if (activeEditor != null && activeEditor instanceof UndoableEditor) {
final HandlesUndoRedo undoRedo = ((UndoableEditor)activeEditor).getUndoRedo();
if (undoRedo != null) {
undoRedo.undo();
}
}
}
@Override
public void updateInPerspective(@NotNull ActionEvent event) {
EditorPartPresenter activeEditor = editorAgent.getActiveEditor();
boolean mustEnable = false;
if (activeEditor != null && activeEditor instanceof UndoableEditor) {
final HandlesUndoRedo undoRedo = ((UndoableEditor)activeEditor).getUndoRedo();
if (undoRedo != null) {
mustEnable = undoRedo.undoable();
}
}
event.getPresentation().setEnabled(mustEnable);
}
}