001    /*
002     * Sonar, open source software quality management tool.
003     * Copyright (C) 2008-2012 SonarSource
004     * mailto:contact AT sonarsource DOT com
005     *
006     * Sonar is free software; you can redistribute it and/or
007     * modify it under the terms of the GNU Lesser General Public
008     * License as published by the Free Software Foundation; either
009     * version 3 of the License, or (at your option) any later version.
010     *
011     * Sonar is distributed in the hope that it will be useful,
012     * but WITHOUT ANY WARRANTY; without even the implied warranty of
013     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014     * Lesser General Public License for more details.
015     *
016     * You should have received a copy of the GNU Lesser General Public
017     * License along with Sonar; if not, write to the Free Software
018     * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02
019     */
020    package org.sonar.wsclient.gwt;
021    
022    import com.google.gwt.core.client.JavaScriptObject;
023    import com.google.gwt.user.client.ui.Widget;
024    import org.sonar.wsclient.services.Model;
025    
026    import java.util.List;
027    
028    public abstract class AbstractListCallback<MODEL extends Model> implements ListCallback<MODEL> {
029    
030      private Widget loadingWidget = null;
031    
032      protected AbstractListCallback(Widget loadingWidget) {
033        this.loadingWidget = loadingWidget;
034      }
035    
036      protected AbstractListCallback() {
037      }
038    
039      public void onResponse(List<MODEL> result, JavaScriptObject json) {
040        hideLoadingWidget();
041        doOnResponse(result);
042      }
043    
044      protected abstract void doOnResponse(List<MODEL> result);
045    
046      public final void onTimeout() {
047        doOnTimeout();
048        hideLoadingWidget();
049      }
050    
051      public final void onError(int errorCode, String errorMessage) {
052        doOnError(errorCode, errorMessage);
053        hideLoadingWidget();
054      }
055    
056      protected void doOnError(int errorCode, String errorMessage) {
057    
058      }
059    
060      protected void doOnTimeout() {
061    
062      }
063    
064      private void hideLoadingWidget() {
065        if (loadingWidget != null) {
066          loadingWidget.removeFromParent();
067        }
068      }
069    }