001/* 002 * This library is part of OpenCms - 003 * the Open Source Content Management System 004 * 005 * Copyright (c) Alkacon Software GmbH & Co. KG (http://www.alkacon.com) 006 * 007 * This library is free software; you can redistribute it and/or 008 * modify it under the terms of the GNU Lesser General Public 009 * License as published by the Free Software Foundation; either 010 * version 2.1 of the License, or (at your option) any later version. 011 * 012 * This library is distributed in the hope that it will be useful, 013 * but WITHOUT ANY WARRANTY; without even the implied warranty of 014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 015 * Lesser General Public License for more details. 016 * 017 * For further information about Alkacon Software, please see the 018 * company website: http://www.alkacon.com 019 * 020 * For further information about OpenCms, please see the 021 * project website: http://www.opencms.org 022 * 023 * You should have received a copy of the GNU Lesser General Public 024 * License along with this library; if not, write to the Free Software 025 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 026 */ 027 028package org.opencms.ui.client; 029 030import org.opencms.ui.report.CmsReportWidget; 031import org.opencms.ui.shared.rpc.I_CmsReportClientRpc; 032import org.opencms.ui.shared.rpc.I_CmsReportServerRpc; 033 034import com.google.gwt.core.client.Scheduler; 035import com.google.gwt.core.client.Scheduler.RepeatingCommand; 036import com.google.gwt.user.client.ui.Widget; 037import com.vaadin.client.ui.AbstractComponentConnector; 038import com.vaadin.shared.ui.Connect; 039 040/** 041 * Connector for the report widget.<p> 042 */ 043@Connect(CmsReportWidget.class) 044public class CmsReportWidgetConnector extends AbstractComponentConnector implements I_CmsReportClientRpc { 045 046 /** Serial version id. */ 047 private static final long serialVersionUID = 1L; 048 049 /** True if we know the report is finished (i.e. the last report update (null) has been received. */ 050 private boolean m_reportFinished; 051 052 /** True if the connector has been unregistered. */ 053 private boolean m_unregistered; 054 055 /** 056 * Creates a new instance.<p> 057 */ 058 public CmsReportWidgetConnector() { 059 060 registerRpc(I_CmsReportClientRpc.class, this); 061 RepeatingCommand command = new RepeatingCommand() { 062 063 @SuppressWarnings("synthetic-access") 064 public boolean execute() { 065 066 if (m_unregistered || m_reportFinished) { 067 return false; 068 } 069 070 getRpcProxy(I_CmsReportServerRpc.class).requestReportUpdate(); 071 return true; 072 } 073 074 }; 075 Scheduler.get().scheduleFixedDelay(command, 750); 076 077 } 078 079 /** 080 * @see org.opencms.ui.shared.rpc.I_CmsReportClientRpc#handleReportUpdate(java.lang.String) 081 */ 082 public void handleReportUpdate(String reportUpdate) { 083 084 if (reportUpdate == null) { 085 m_reportFinished = true; 086 } else { 087 CmsClientReportWidget widget = (CmsClientReportWidget)getWidget(); 088 widget.append(reportUpdate); 089 } 090 } 091 092 /** 093 * @see com.vaadin.client.ui.AbstractComponentConnector#onUnregister() 094 */ 095 @Override 096 public void onUnregister() { 097 098 m_unregistered = true; 099 super.onUnregister(); 100 } 101 102 /** 103 * @see com.vaadin.client.ui.AbstractComponentConnector#createWidget() 104 */ 105 @Override 106 protected Widget createWidget() { 107 108 return new CmsClientReportWidget(); 109 } 110 111}