org.argeo.cms.ui/src/org/argeo/cms/ui/dialogs/CmsFeedback.java

   1 package org.argeo.cms.ui.dialogs;
   2
   3 import java.io.PrintWriter;
   4 import java.io.StringWriter;
   5
   6 import org.apache.commons.logging.Log;
   7 import org.apache.commons.logging.LogFactory;
   8 import org.argeo.eclipse.ui.Selected;
   9 import org.argeo.eclipse.ui.dialogs.LightweightDialog;
  10 import org.eclipse.swt.SWT;
  11 import org.eclipse.swt.layout.GridData;
  12 import org.eclipse.swt.layout.GridLayout;
  13 import org.eclipse.swt.widgets.Button;
  14 import org.eclipse.swt.widgets.Composite;
  15 import org.eclipse.swt.widgets.Control;
  16 import org.eclipse.swt.widgets.Display;
  17 import org.eclipse.swt.widgets.Label;
  18 import org.eclipse.swt.widgets.Shell;
  19 import org.eclipse.swt.widgets.Text;
  20
  21 public class CmsFeedback extends LightweightDialog {
  22         private final static Log log = LogFactory.getLog(CmsFeedback.class);
  23
  24         private String message;
  25         private Throwable exception;
  26
  27         public CmsFeedback(Shell parentShell, String message, Throwable e) {
  28                 super(parentShell);
  29                 this.message = message;
  30                 this.exception = e;
  31                 log.error(message, e);
  32         }
  33
  34         public static void show(String message, Throwable e) {
  35                 // rethrow ThreaDeath in order to make sure that RAP will properly clean
  36                 // up the UI thread
  37                 if (e instanceof ThreadDeath)
  38                         throw (ThreadDeath) e;
  39
  40                 new CmsFeedback(getDisplay().getActiveShell(), message, e).open();
  41         }
  42
  43         public static void show(String message) {
  44                 new CmsFeedback(getDisplay().getActiveShell(), message, null).open();
  45         }
  46
  47         /** Tries to find a display */
  48         private static Display getDisplay() {
  49                 try {
  50                         Display display = Display.getCurrent();
  51                         if (display != null)
  52                                 return display;
  53                         else
  54                                 return Display.getDefault();
  55                 } catch (Exception e) {
  56                         return Display.getCurrent();
  57                 }
  58         }
  59
  60         protected Control createDialogArea(Composite parent) {
  61                 parent.setLayout(new GridLayout(2, false));
  62
  63                 Label messageLbl = new Label(parent, SWT.WRAP);
  64                 if (message != null)
  65                         messageLbl.setText(message);
  66                 else if (exception != null)
  67                         messageLbl.setText(exception.getLocalizedMessage());
  68
  69                 Button close = new Button(parent, SWT.FLAT);
  70                 close.setText("Close");
  71                 close.setLayoutData(new GridData(SWT.END, SWT.TOP, false, false));
  72                 close.addSelectionListener((Selected) (e) -> closeShell(OK));
  73
  74                 // Composite composite = new Composite(dialogarea, SWT.NONE);
  75                 // composite.setLayout(new GridLayout(2, false));
  76                 // composite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
  77
  78                 if (exception != null) {
  79                         Text stack = new Text(parent, SWT.MULTI | SWT.LEAD | SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL);
  80                         stack.setEditable(false);
  81                         stack.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 2, 1));
  82                         StringWriter sw = new StringWriter();
  83                         exception.printStackTrace(new PrintWriter(sw));
  84                         stack.setText(sw.toString());
  85                 }
  86
  87                 // parent.pack();
  88                 return messageLbl;
  89         }
  90
  91 }