eclipse/org.argeo.cms.swt/src/org/argeo/cms/swt/dialogs/CmsFeedback.java

   1 package org.argeo.cms.swt.dialogs;
   2
   3 import java.io.PrintWriter;
   4 import java.io.StringWriter;
   5
   6 import org.argeo.api.cms.CmsLog;
   7 import org.argeo.cms.CmsMsg;
   8 import org.argeo.cms.swt.Selected;
   9 import org.eclipse.swt.SWT;
  10 import org.eclipse.swt.layout.GridData;
  11 import org.eclipse.swt.layout.GridLayout;
  12 import org.eclipse.swt.widgets.Button;
  13 import org.eclipse.swt.widgets.Composite;
  14 import org.eclipse.swt.widgets.Control;
  15 import org.eclipse.swt.widgets.Label;
  16 import org.eclipse.swt.widgets.Shell;
  17 import org.eclipse.swt.widgets.Text;
  18
  19 /** A dialog feedback based on a {@link LightweightDialog}. */
  20 public class CmsFeedback extends LightweightDialog {
  21         private final static CmsLog log = CmsLog.getLog(CmsFeedback.class);
  22
  23         private String message;
  24         private Throwable exception;
  25
  26         public CmsFeedback(Shell parentShell, String message, Throwable e) {
  27                 super(parentShell);
  28                 this.message = message;
  29                 this.exception = e;
  30                 log.error(message, e);
  31         }
  32
  33         public static CmsFeedback show(String message, Throwable e) {
  34                 // rethrow ThreaDeath in order to make sure that RAP will properly clean
  35                 // up the UI thread
  36                 if (e instanceof ThreadDeath)
  37                         throw (ThreadDeath) e;
  38
  39                 try {
  40                         CmsFeedback cmsFeedback = new CmsFeedback(null, message, e);
  41                         cmsFeedback.setBlockOnOpen(false);
  42                         cmsFeedback.open();
  43                         return cmsFeedback;
  44                 } catch (Throwable e1) {
  45                         log.error("Cannot open error feedback (" + e.getMessage() + "), original error below", e);
  46                         return null;
  47                 }
  48         }
  49
  50         public static CmsFeedback show(String message) {
  51                 CmsFeedback cmsFeedback = new CmsFeedback(null, message, null);
  52                 cmsFeedback.open();
  53                 return cmsFeedback;
  54         }
  55
  56         /** Tries to find a display */
  57         // private static Display getDisplay() {
  58         // try {
  59         // Display display = Display.getCurrent();
  60         // if (display != null)
  61         // return display;
  62         // else
  63         // return Display.getDefault();
  64         // } catch (Exception e) {
  65         // return Display.getCurrent();
  66         // }
  67         // }
  68
  69         protected Control createDialogArea(Composite parent) {
  70                 parent.setLayout(new GridLayout(2, false));
  71
  72                 Label messageLbl = new Label(parent, SWT.WRAP);
  73                 if (message != null)
  74                         messageLbl.setText(message);
  75                 else if (exception != null)
  76                         messageLbl.setText(exception.getLocalizedMessage());
  77
  78                 Button close = new Button(parent, SWT.FLAT);
  79                 close.setText(CmsMsg.close.lead());
  80                 close.setLayoutData(new GridData(SWT.END, SWT.TOP, false, false));
  81                 close.addSelectionListener((Selected) (e) -> closeShell(OK));
  82
  83                 // Composite composite = new Composite(dialogarea, SWT.NONE);
  84                 // composite.setLayout(new GridLayout(2, false));
  85                 // composite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
  86
  87                 if (exception != null) {
  88                         Text stack = new Text(parent, SWT.MULTI | SWT.LEAD | SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL);
  89                         stack.setEditable(false);
  90                         stack.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 2, 1));
  91                         StringWriter sw = new StringWriter();
  92                         exception.printStackTrace(new PrintWriter(sw));
  93                         stack.setText(sw.toString());
  94                 }
  95
  96                 // parent.pack();
  97                 return messageLbl;
  98         }
  99
 100 }