info.nemoworks.airsys.policies.FXDeleteFirstAnchorageOnClickPolicy.java Source code

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Here is the source code for info.nemoworks.airsys.policies.FXDeleteFirstAnchorageOnClickPolicy.java

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/*******************************************************************************
 * Copyright (c) 2014, 2015 itemis AG and others.
 *
 * 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:
 *     Matthias Wienand (itemis AG) - initial API & implementation
 *
 *******************************************************************************/
package info.nemoworks.airsys.policies;

import javafx.scene.Node;
import javafx.scene.input.MouseEvent;

import org.eclipse.gef4.mvc.fx.policies.AbstractFXOnClickPolicy;
import org.eclipse.gef4.mvc.parts.IContentPart;
import org.eclipse.gef4.mvc.parts.IVisualPart;
import org.eclipse.gef4.mvc.policies.ContentPolicy;

import com.google.common.collect.SetMultimap;

public class FXDeleteFirstAnchorageOnClickPolicy extends AbstractFXOnClickPolicy {

    @Override
    public void click(MouseEvent e) {
        IVisualPart<Node, ? extends Node> host = getHost();
        if (host instanceof IContentPart) {
            ContentPolicy<Node> policy = host.<ContentPolicy<Node>>getAdapter(ContentPolicy.class);
            if (policy != null) {
                init(policy);
                policy.deleteContent();
                commit(policy);
            }
        }
    }

    @Override
    public IVisualPart<Node, ? extends Node> getHost() {
        SetMultimap<IVisualPart<Node, ? extends Node>, String> anchorages = super.getHost().getParent()
                .getAnchorages();
        if (anchorages == null || anchorages.isEmpty()) {
            return null;
        }
        return anchorages.keySet().iterator().next();
    }

}