001 /* 002 * Sonar, open source software quality management tool. 003 * Copyright (C) 2008-2011 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 public abstract class AbstractCallback<MODEL extends Model> implements Callback<MODEL> { 027 028 private Widget loadingWidget = null; 029 030 protected AbstractCallback(Widget loadingWidget) { 031 this.loadingWidget = loadingWidget; 032 } 033 034 protected AbstractCallback() { 035 } 036 037 public void onResponse(MODEL result, JavaScriptObject json) { 038 hideLoadingWidget(); 039 doOnResponse(result); 040 } 041 042 protected abstract void doOnResponse(MODEL result); 043 044 public final void onTimeout() { 045 doOnTimeout(); 046 hideLoadingWidget(); 047 } 048 049 public final void onError(int errorCode, String errorMessage) { 050 doOnError(errorCode, errorMessage); 051 hideLoadingWidget(); 052 } 053 054 protected void doOnError(int errorCode, String errorMessage) { 055 056 } 057 058 protected void doOnTimeout() { 059 060 } 061 062 private void hideLoadingWidget() { 063 if (loadingWidget != null) { 064 loadingWidget.removeFromParent(); 065 } 066 } 067 }