001 /* 002 Copyright (C) 2002-2003 Laurent Martelli <laurent@aopsys.com> 003 004 This program is free software; you can redistribute it and/or modify 005 it under the terms of the GNU Lesser General Public License as 006 published by the Free Software Foundation; either version 2 of the 007 License, or (at your option) any later version. 008 009 This program is distributed in the hope that it will be useful, 010 but WITHOUT ANY WARRANTY; without even the implied warranty of 011 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 012 GNU Lesser General Public License for more details. 013 014 You should have received a copy of the GNU Lesser General Public License 015 along with this program; if not, write to the Free Software 016 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ 017 018 package org.objectweb.jac.aspects.gui.web; 019 020 import java.io.IOException; 021 import java.io.PrintWriter; 022 import java.util.Iterator; 023 import java.util.Map; 024 import javax.servlet.http.HttpServletResponse; 025 import org.apache.log4j.Logger; 026 import org.objectweb.jac.aspects.gui.*; 027 import org.objectweb.jac.core.Collaboration; 028 import org.objectweb.jac.util.Semaphore; 029 030 /** 031 * An HTML page containing a View, and an OK and a close Button 032 */ 033 public class Dialog extends AbstractPage 034 implements DialogView, DialogListener 035 { 036 static Logger loggerTimeout = Logger.getLogger("gui.timeout"); 037 static Logger loggerEvents = Logger.getLogger("gui.events"); 038 039 boolean ok = false; 040 Semaphore semaphore = new Semaphore(); 041 String description; 042 HttpServletResponse response; 043 JacRequest jacRequest; 044 /** Stores context attributes at creation time */ 045 Map attributes; 046 047 /** 048 * @param view the view to embed in the dialog 049 * @param parent the parent window of the dialog 050 * @param title the title 051 * @param description description of the view 052 */ 053 public Dialog(ViewFactory factory, DisplayContext context, 054 View view, Object parent, 055 String title, String description) 056 { 057 super(factory,context,view,false); 058 this.description = description; 059 attributes = Collaboration.get().getAttributes(); 060 attributes.remove(WebDisplay.REQUEST); 061 attributes.remove(WebDisplay.RESPONSE); 062 //System.out.println("Stored attributes: "+attributes); 063 /* 064 if (view instanceof org.objectweb.jac.aspects.gui.EditorContainer) { 065 Iterator i = 066 ((org.objectweb.jac.aspects.gui.EditorContainer)view).getEditors().iterator(); 067 */ 068 Iterator i = context.getEditors().iterator(); 069 while (i.hasNext()) { 070 Object editor = i.next(); 071 if (editor instanceof HTMLEditor) { 072 ((HTMLEditor)editor).setAttribute( 073 "onkeypress", 074 "return commitFormOnEnter(event,this,'event=onRefresh&source="+getId()+"')\""); 075 } 076 } 077 // } 078 } 079 080 public HttpServletResponse getResponse() { 081 return response; 082 } 083 084 public JacRequest getRequest() { 085 return jacRequest; 086 } 087 088 // DialogView interface 089 090 public boolean waitForClose() throws TimeoutException { 091 loggerTimeout.debug("waiting for "+this+" to be closed "+ 092 GuiAC.dialogTimeout+"ms"); 093 if (!semaphore.acquire(GuiAC.dialogTimeout)) { 094 loggerTimeout.debug("Dialog timedout: "+this); 095 throw new TimeoutException(this); 096 } 097 loggerEvents.debug("closed "+this+" -> "+ok); 098 return ok; 099 } 100 101 public View getContentView() { 102 return view; 103 } 104 105 // HTMLViewer interface 106 107 public void genHTML(PrintWriter out) throws IOException { 108 Collaboration c = Collaboration.get(); 109 // pressing "enter" in an editor should call "refresh" 110 c.addAttribute(WebDisplay.ON_ENTER_ACTION, "event=onRefresh"); 111 try { 112 super.genHTML(out); 113 } finally { 114 c.removeAttribute(WebDisplay.ON_ENTER_ACTION); 115 } 116 } 117 118 public void genBody(PrintWriter out) throws IOException { 119 out.println("<div class=\""+type+"\">"); 120 if (description!=null) 121 out.println("<div class=\"description\">"+description+"</div>"); 122 openForm(out); 123 ((HTMLViewer)view).genHTML(out); 124 showFormButtons(out); 125 closeForm(out); 126 out.println("</div>"); 127 } 128 129 // DialogListener interface 130 131 public void restoreContext() { 132 loggerEvents.debug("Restoring attributes: "+attributes.keySet()); 133 Collaboration.get().setAttributes(attributes); 134 } 135 136 public void onOK(JacRequest request) { 137 loggerEvents.debug(this+".onOK"); 138 restoreContext(); 139 WebDisplay display = (WebDisplay)context.getDisplay(); 140 response = WebDisplay.getResponse(); 141 jacRequest = WebDisplay.getRequest(); 142 display.closeWindow(this,true); 143 ok = true; 144 semaphore.release(); 145 } 146 147 public void onRefresh(JacRequest request) { 148 loggerEvents.debug(this+".onRefresh"); 149 WebDisplay display = (WebDisplay)context.getDisplay(); 150 restoreContext(); 151 response = WebDisplay.getResponse(); 152 jacRequest = WebDisplay.getRequest(); 153 WebDisplay.readValuesAndRefresh(context,request,true); 154 } 155 156 public void onValidate(JacRequest request) { 157 restoreContext(); 158 WebDisplay.readValues(context,request,true); 159 } 160 161 public void onCancel() { 162 loggerEvents.debug(this+".onCancel"); 163 ok = false; 164 Collaboration collab = Collaboration.get(); 165 try { 166 WebDisplay display = (WebDisplay)context.getDisplay(); 167 response = WebDisplay.getResponse(); 168 jacRequest = WebDisplay.getRequest(); 169 //collab.addAttribute(GuiAC.NO_COMMIT,Boolean.TRUE); 170 display.closeWindow(this,false); 171 } finally { 172 //collab.addAttribute(GuiAC.NO_COMMIT,null); 173 semaphore.release(); 174 } 175 } 176 }