com.nextep.designer.vcs.ui.actions.CheckoutAction.java Source code

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Here is the source code for com.nextep.designer.vcs.ui.actions.CheckoutAction.java

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/*******************************************************************************
 * Copyright (c) 2011 neXtep Software and contributors.
 * All rights reserved.
 *
 * This file is part of neXtep designer.
 *
 * NeXtep designer is free software: you can redistribute it 
 * and/or modify it under the terms of the GNU General Public 
 * License as published by the Free Software Foundation, either 
 * version 3 of the License, or any later version.
 *
 * NeXtep designer 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with neXtep designer.  
 * If not, see <http://www.gnu.org/licenses/>.
 *
 * Contributors:
 *     neXtep Softwares - initial API and implementation
 *******************************************************************************/
package com.nextep.designer.vcs.ui.actions;

import org.eclipse.jface.action.Action;
import org.eclipse.jface.resource.ImageDescriptor;
import com.nextep.datadesigner.Designer;
import com.nextep.datadesigner.model.ChangeEvent;
import com.nextep.datadesigner.model.IEventListener;
import com.nextep.datadesigner.model.IModelOriented;
import com.nextep.datadesigner.model.IObservable;
import com.nextep.designer.vcs.model.IVersionStatus;
import com.nextep.designer.vcs.model.IVersionable;
import com.nextep.designer.vcs.ui.VCSImages;
import com.nextep.designer.vcs.ui.VCSUIMessages;
import com.nextep.designer.vcs.ui.VCSUIPlugin;
import com.nextep.designer.vcs.ui.services.IVersioningUIService;

/**
 * @author Christophe Fondacci
 */
public class CheckoutAction extends Action implements IModelOriented<IVersionable<?>>, IEventListener {

    private IVersionable<?> model;

    public CheckoutAction(Object instigator, IVersionable<?> model) {
        super(VCSUIMessages.getString("action.checkout.tooltip"), AS_PUSH_BUTTON); //$NON-NLS-1$
        setImageDescriptor(ImageDescriptor.createFromImage(VCSImages.ICON_CHECKOUT));
        setModel(model);
        Designer.getListenerService().registerListener(instigator, model, this);
    }

    @Override
    public void run() {
        final IVersioningUIService versioningService = VCSUIPlugin.getVersioningUIService();
        versioningService.checkOut(null, getModel());
    }

    @Override
    public void setModel(IVersionable<?> model) {
        this.model = model;
        handleEnablement();
    }

    private void handleEnablement() {
        if (model != null) {
            setEnabled(model.getVersion().getStatus() == IVersionStatus.CHECKED_IN);
        } else {
            setEnabled(false);
        }
    }

    @Override
    public IVersionable<?> getModel() {
        return model;
    }

    @Override
    public void handleEvent(ChangeEvent event, IObservable source, Object data) {
        switch (event) {
        case CHECKIN:
            handleEnablement();
        }
    }
}