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.cms.CmsMsg;
   9 import org.argeo.eclipse.ui.Selected;
  10 import org.argeo.eclipse.ui.dialogs.LightweightDialog;
  11 import org.eclipse.swt.SWT;
  12 import org.eclipse.swt.layout.GridData;
  13 import org.eclipse.swt.layout.GridLayout;
  14 import org.eclipse.swt.widgets.Button;
  15 import org.eclipse.swt.widgets.Composite;
  16 import org.eclipse.swt.widgets.Control;
  17 import org.eclipse.swt.widgets.Label;
  18 import org.eclipse.swt.widgets.Shell;
  19 import org.eclipse.swt.widgets.Text;
  20
  21 /** A dialog feedback based on a {@link LightweightDialog}. */
  22 public class CmsFeedback extends LightweightDialog {
  23         private final static Log log = LogFactory.getLog(CmsFeedback.class);
  24
  25         private String message;
  26         private Throwable exception;
  27
  28         public CmsFeedback(Shell parentShell, String message, Throwable e) {
  29                 super(parentShell);
  30                 this.message = message;
  31                 this.exception = e;
  32                 log.error(message, e);
  33         }
  34
  35         public static void show(String message, Throwable e) {
  36                 // rethrow ThreaDeath in order to make sure that RAP will properly clean
  37                 // up the UI thread
  38                 if (e instanceof ThreadDeath)
  39                         throw (ThreadDeath) e;
  40
  41                 try {
  42                         CmsFeedback cmsFeedback = new CmsFeedback(null, message, e);
  43                         cmsFeedback.setBlockOnOpen(false);
  44                         cmsFeedback.open();
  45                 } catch (Throwable e1) {
  46                         log.error("Cannot open error feedback (" + e.getMessage() + "), original error below", e);
  47                 }
  48         }
  49
  50         public static void show(String message) {
  51                 new CmsFeedback(null, message, null).open();
  52         }
  53
  54         /** Tries to find a display */
  55         // private static Display getDisplay() {
  56         // try {
  57         // Display display = Display.getCurrent();
  58         // if (display != null)
  59         // return display;
  60         // else
  61         // return Display.getDefault();
  62         // } catch (Exception e) {
  63         // return Display.getCurrent();
  64         // }
  65         // }
  66
  67         protected Control createDialogArea(Composite parent) {
  68                 parent.setLayout(new GridLayout(2, false));
  69
  70                 Label messageLbl = new Label(parent, SWT.WRAP);
  71                 if (message != null)
  72                         messageLbl.setText(message);
  73                 else if (exception != null)
  74                         messageLbl.setText(exception.getLocalizedMessage());
  75
  76                 Button close = new Button(parent, SWT.FLAT);
  77                 close.setText(CmsMsg.close.lead());
  78                 close.setLayoutData(new GridData(SWT.END, SWT.TOP, false, false));
  79                 close.addSelectionListener((Selected) (e) -> closeShell(OK));
  80
  81                 // Composite composite = new Composite(dialogarea, SWT.NONE);
  82                 // composite.setLayout(new GridLayout(2, false));
  83                 // composite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
  84
  85                 if (exception != null) {
  86                         Text stack = new Text(parent, SWT.MULTI | SWT.LEAD | SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL);
  87                         stack.setEditable(false);
  88                         stack.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 2, 1));
  89                         StringWriter sw = new StringWriter();
  90                         exception.printStackTrace(new PrintWriter(sw));
  91                         stack.setText(sw.toString());
  92                 }
  93
  94                 // parent.pack();
  95                 return messageLbl;
  96         }
  97
  98 }