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.cms.CmsMsg;
   9 import org.argeo.eclipse.ui.Selected;
  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.Label;
  17 import org.eclipse.swt.widgets.Shell;
  18 import org.eclipse.swt.widgets.Text;
  19
  20 /** A dialog feedback based on a {@link LightweightDialog}. */
  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 CmsFeedback 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                 try {
  41                         CmsFeedback cmsFeedback = new CmsFeedback(null, message, e);
  42                         cmsFeedback.setBlockOnOpen(false);
  43                         cmsFeedback.open();
  44                         return cmsFeedback;
  45                 } catch (Throwable e1) {
  46                         log.error("Cannot open error feedback (" + e.getMessage() + "), original error below", e);
  47                         return null;
  48                 }
  49         }
  50
  51         public static CmsFeedback show(String message) {
  52                 CmsFeedback cmsFeedback = new CmsFeedback(null, message, null);
  53                 cmsFeedback.open();
  54                 return cmsFeedback;
  55         }
  56
  57         /** Tries to find a display */
  58         // private static Display getDisplay() {
  59         // try {
  60         // Display display = Display.getCurrent();
  61         // if (display != null)
  62         // return display;
  63         // else
  64         // return Display.getDefault();
  65         // } catch (Exception e) {
  66         // return Display.getCurrent();
  67         // }
  68         // }
  69
  70         protected Control createDialogArea(Composite parent) {
  71                 parent.setLayout(new GridLayout(2, false));
  72
  73                 Label messageLbl = new Label(parent, SWT.WRAP);
  74                 if (message != null)
  75                         messageLbl.setText(message);
  76                 else if (exception != null)
  77                         messageLbl.setText(exception.getLocalizedMessage());
  78
  79                 Button close = new Button(parent, SWT.FLAT);
  80                 close.setText(CmsMsg.close.lead());
  81                 close.setLayoutData(new GridData(SWT.END, SWT.TOP, false, false));
  82                 close.addSelectionListener((Selected) (e) -> closeShell(OK));
  83
  84                 // Composite composite = new Composite(dialogarea, SWT.NONE);
  85                 // composite.setLayout(new GridLayout(2, false));
  86                 // composite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
  87
  88                 if (exception != null) {
  89                         Text stack = new Text(parent, SWT.MULTI | SWT.LEAD | SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL);
  90                         stack.setEditable(false);
  91                         stack.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 2, 1));
  92                         StringWriter sw = new StringWriter();
  93                         exception.printStackTrace(new PrintWriter(sw));
  94                         stack.setText(sw.toString());
  95                 }
  96
  97                 // parent.pack();
  98                 return messageLbl;
  99         }
 100
 101 }