ActivatableView.java

/*
 * This file is part of Bitsquare.
 *
 * Bitsquare is free software: you can redistribute it and/or modify it
 * under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or (at
 * your option) any later version.
 *
 * Bitsquare 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 Affero General Public
 * License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with Bitsquare. If not, see <http://www.gnu.org/licenses/>.
 */

package io.bitsquare.gui.common.view;

import javafx.scene.Node;

public abstract class ActivatableView<R extends Node, M> extends InitializableView<R, M> {

    public ActivatableView(M model) {
        super(model);
    }

    public ActivatableView() {
        this(null);
    }

    @Override
    protected void prepareInitialize() {
        if (root != null) {
            root.sceneProperty().addListener((ov, oldValue, newValue) -> {
                if (oldValue == null && newValue != null)
                    activate();
                else if (oldValue != null && newValue == null)
                    deactivate();
            });
        }
    }

    protected void activate() {
    }

    protected void deactivate() {
    }
}