ShowWelcomePreferencePageViewImpl.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.factory.welcome.preferences;

import com.google.gwt.uibinder.client.UiBinder;
import com.google.gwt.uibinder.client.UiField;
import com.google.gwt.user.client.ui.CheckBox;
import com.google.gwt.user.client.ui.FlowPanel;
import com.google.gwt.user.client.ui.HasValue;
import com.google.gwt.user.client.ui.Widget;
import com.google.inject.Inject;
import com.google.inject.Singleton;

/**
 * @author Vitaliy Guliy
 */
@Singleton
public class ShowWelcomePreferencePageViewImpl implements ShowWelcomePreferencePageView {

    interface ShowWelcomePreferencePageViewImplUiBinder extends UiBinder<FlowPanel, ShowWelcomePreferencePageViewImpl> {}

    private ActionDelegate delegate;

    private Widget widget;

    @UiField
    CheckBox showWelcome;

    @Inject
    public ShowWelcomePreferencePageViewImpl(ShowWelcomePreferencePageViewImplUiBinder uiBinder) {
        widget = uiBinder.createAndBindUi(this);

        showWelcome.addValueChangeHandler(booleanValueChangeEvent -> {
            if (delegate != null) {
                delegate.onDirtyChanged();
            }
        });
    }

    @Override
    public void setDelegate(ActionDelegate delegate) {
        this.delegate = delegate;
    }

    @Override
    public Widget asWidget() {
        return widget;
    }

    @Override
    public HasValue<Boolean> welcomeField() {
        return showWelcome;
    }

}