ShowWelcomePreferencePagePresenter.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.user.client.ui.AcceptsOneWidget;
import com.google.inject.Inject;
import com.google.inject.Singleton;

import org.eclipse.che.ide.CoreLocalizationConstant;
import org.eclipse.che.ide.api.preferences.AbstractPreferencePagePresenter;
import org.eclipse.che.ide.api.preferences.PreferencesManager;

/**
 * @author Vitaliy Guliy
 */
@Singleton
public class ShowWelcomePreferencePagePresenter extends AbstractPreferencePagePresenter implements ShowWelcomePreferencePageView.ActionDelegate {

    public static final String SHOW_WELCOME_PREFERENCE_KEY = "plugin-factory.welcome";

    private ShowWelcomePreferencePageView   view;
    private PreferencesManager              preferencesManager;

    @Inject
    public ShowWelcomePreferencePagePresenter(CoreLocalizationConstant localizationConstant,
                                              ShowWelcomePreferencePageView view,
                                              PreferencesManager preferencesManager) {
        super(localizationConstant.welcomePreferencesTitle());
        this.view = view;
        this.preferencesManager = preferencesManager;
        view.setDelegate(this);
        view.welcomeField().setValue(true);
    }

    @Override
    public boolean isDirty() {
        String value = preferencesManager.getValue(SHOW_WELCOME_PREFERENCE_KEY);
        if (value == null) {
            return !view.welcomeField().getValue();
        }

        return !view.welcomeField().getValue().equals(Boolean.parseBoolean(value));
    }

    @Override
    public void storeChanges() {
        preferencesManager.setValue(SHOW_WELCOME_PREFERENCE_KEY, view.welcomeField().getValue().toString());
    }

    @Override
    public void revertChanges() {
        view.welcomeField().setValue(Boolean.parseBoolean(preferencesManager.getValue(SHOW_WELCOME_PREFERENCE_KEY)));
    }

    @Override
    public void go(AcceptsOneWidget container) {
        container.setWidget(view);
        String value = preferencesManager.getValue(SHOW_WELCOME_PREFERENCE_KEY);
        if (value == null) {
            view.welcomeField().setValue(true);
        } else {
            view.welcomeField().setValue(Boolean.parseBoolean(preferencesManager.getValue(SHOW_WELCOME_PREFERENCE_KEY)));
        }
    }

    @Override
    public void onDirtyChanged() {
        delegate.onDirtyChanged();
    }

}