CommandsActionGroup.java

/*******************************************************************************
 * 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.command.execute;

import com.google.inject.Inject;
import com.google.inject.Singleton;

import org.eclipse.che.api.core.model.machine.Machine;
import org.eclipse.che.ide.api.action.ActionEvent;
import org.eclipse.che.ide.api.action.ActionManager;
import org.eclipse.che.ide.api.action.DefaultActionGroup;
import org.eclipse.che.ide.api.resources.Resource;
import org.eclipse.che.ide.api.selection.Selection;
import org.eclipse.che.ide.api.selection.SelectionAgent;
import org.eclipse.che.ide.resources.tree.ResourceNode;

/**
 * Action group that contains all actions for executing commands.
 *
 * @author Artem Zatsarynnyi
 */
@Singleton
public class CommandsActionGroup extends DefaultActionGroup {

    private final SelectionAgent selectionAgent;

    @Inject
    public CommandsActionGroup(ActionManager actionManager,
                               SelectionAgent selectionAgent,
                               ExecMessages messages) {
        super(messages.actionCommandsTitle(), true, actionManager);

        this.selectionAgent = selectionAgent;
    }

    @Override
    public void update(ActionEvent e) {
        e.getPresentation().setEnabledAndVisible(false);

        // action group should be visible when current selection is machine or project

        final Selection<?> selection = selectionAgent.getSelection();

        if (selection != null && !selection.isEmpty() && selection.isSingleSelection()) {
            final Object possibleNode = selection.getHeadElement();

            if (possibleNode instanceof Machine) {
                e.getPresentation().setEnabledAndVisible(true);
            } else if (possibleNode instanceof ResourceNode) {
                final Resource selectedResource = ((ResourceNode)possibleNode).getData();

                e.getPresentation().setEnabledAndVisible(selectedResource.isProject());
            }
        }
    }
}