de.symeda.sormas.ui.utils.ConfirmationComponent.java Source code

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Here is the source code for de.symeda.sormas.ui.utils.ConfirmationComponent.java

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/*******************************************************************************
 * SORMAS - Surveillance Outbreak Response Management & Analysis System
 * Copyright  2016-2018 Helmholtz-Zentrum fr Infektionsforschung GmbH (HZI)
 *
 * This program 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
 * (at your option) any later version.
 *
 * This program 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 this program.  If not, see <https://www.gnu.org/licenses/>.
 *******************************************************************************/
package de.symeda.sormas.ui.utils;

import java.util.ArrayList;
import java.util.List;

import com.vaadin.ui.Button;
import com.vaadin.ui.Button.ClickEvent;
import com.vaadin.ui.Button.ClickListener;
import com.vaadin.ui.HorizontalLayout;
import com.vaadin.ui.themes.ValoTheme;

import de.symeda.sormas.api.i18n.Captions;
import de.symeda.sormas.api.i18n.I18nProperties;
import de.symeda.sormas.ui.utils.CommitDiscardWrapperComponent.DoneListener;

/**
 * Besteht aus einem "confirm"/"bernehmen"- und einem "cancel"/"Abbrechen"-Button
 * 
 * @author Martin Wahnschaffe
 */
@SuppressWarnings("serial")
public abstract class ConfirmationComponent extends HorizontalLayout {

    private transient List<DoneListener> doneListeners = new ArrayList<DoneListener>();

    private Button confirmButton;
    private Button cancelButton;

    public ConfirmationComponent() {
        this(false);
    }

    public ConfirmationComponent(boolean inverseOrder) {

        setSpacing(true);
        setSizeUndefined();

        Button discardButton = getCancelButton();
        if (!inverseOrder)
            addComponent(discardButton);

        Button commitButton = getConfirmButton();
        addComponent(commitButton);

        if (inverseOrder)
            addComponent(discardButton);
    }

    public Button getConfirmButton() {
        if (confirmButton == null) {
            confirmButton = new Button(I18nProperties.getCaption(Captions.actionConfirm));
            cancelButton.addStyleName(ValoTheme.BUTTON_PRIMARY);

            confirmButton.addClickListener(new ClickListener() {
                public void buttonClick(ClickEvent event) {
                    onConfirm();
                    onDone();
                }
            });
        }
        return confirmButton;
    }

    public Button getCancelButton() {
        if (cancelButton == null) {
            cancelButton = new Button(I18nProperties.getCaption(Captions.actionCancel));
            cancelButton.addStyleName(ValoTheme.BUTTON_LINK);

            cancelButton.addClickListener(new ClickListener() {
                @Override
                public void buttonClick(ClickEvent event) {
                    onCancel();
                    onDone();
                }
            });
        }
        return cancelButton;
    }

    public void addDoneListener(DoneListener listener) {
        if (!doneListeners.contains(listener))
            doneListeners.add(listener);
    }

    public void removeDoneListener(DoneListener listener) {
        doneListeners.remove(listener);
    }

    protected void onDone() {
        for (DoneListener listener : doneListeners)
            listener.onDone();
    }

    protected abstract void onConfirm();

    protected void onCancel() {
    };
}