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 */ 020package org.sonar.gwt.ui; 021 022import com.google.gwt.core.client.EntryPoint; 023import com.google.gwt.core.client.GWT; 024import com.google.gwt.core.client.JavaScriptObject; 025import com.google.gwt.json.client.JSONObject; 026import com.google.gwt.user.client.ui.RootPanel; 027import com.google.gwt.user.client.ui.Widget; 028import org.sonar.wsclient.gwt.GwtUtils; 029import org.sonar.wsclient.services.Resource; 030import org.sonar.wsclient.services.WSUtils; 031import org.sonar.wsclient.unmarshallers.ResourceUnmarshaller; 032 033public abstract class Page implements EntryPoint { 034 035 private static final ResourceUnmarshaller RESOURCE_UNMARSHALLER = new ResourceUnmarshaller(); 036 037 public final void onModuleLoad() { 038 export(GWT.getModuleName(), this); 039 load(); 040 onResourceLoad(); 041 } 042 043 private void load() { 044 Widget widget = doOnModuleLoad(); 045 if (widget != null) { 046 getRootPanel().add(widget); 047 } 048 } 049 050 protected Widget doOnModuleLoad() { 051 return null; 052 } 053 054 public final void onResourceLoad() { 055 JavaScriptObject json = loadResource(); 056 if (json != null) { 057 if (WSUtils.getINSTANCE() == null) { 058 WSUtils.setInstance(new GwtUtils()); // TODO dirty hack to initialize WSUtils 059 } 060 String jsonStr = (new JSONObject(json)).toString(); 061 Resource resource = RESOURCE_UNMARSHALLER.toModel(jsonStr); 062 063 RootPanel container = getRootPanel(); 064 container.clear(); 065 066 Widget currentWidget = doOnResourceLoad(resource); 067 if (currentWidget != null) { 068 container.add(currentWidget); 069 } 070 } 071 } 072 073 protected Widget doOnResourceLoad(Resource resource) { 074 return null; 075 } 076 077 protected final RootPanel getRootPanel() { 078 RootPanel result = RootPanel.get("gwtpage-" + GWT.getModuleName()); 079 if (result == null) { 080 result = RootPanel.get("gwtpage"); 081 } 082 return result; 083 } 084 085 private native JavaScriptObject loadResource()/*-{ 086 return $wnd.config['resource']; 087 }-*/; 088 089 private native void export(String gwtId, Page page)/*-{ 090 $wnd.modules[gwtId]=function() {page.@org.sonar.gwt.ui.Page::onResourceLoad()()}; 091 }-*/; 092}