security/plugins/org.argeo.security.ui/src/main/java/org/argeo/security/ui/dialogs/DefaultLoginDialog.java

   1 package org.argeo.security.ui.dialogs;
   2
   3 import javax.security.auth.callback.Callback;
   4 import javax.security.auth.callback.NameCallback;
   5 import javax.security.auth.callback.PasswordCallback;
   6 import javax.security.auth.callback.TextOutputCallback;
   7
   8 import org.eclipse.swt.SWT;
   9 import org.eclipse.swt.events.ModifyEvent;
  10 import org.eclipse.swt.events.ModifyListener;
  11 import org.eclipse.swt.graphics.Point;
  12 import org.eclipse.swt.layout.GridData;
  13 import org.eclipse.swt.layout.GridLayout;
  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 DefaultLoginDialog extends AbstractLoginDialog {
  22
  23         public DefaultLoginDialog() {
  24                 this(Display.getCurrent().getActiveShell());
  25         }
  26
  27         protected DefaultLoginDialog(Shell parentShell) {
  28                 super(parentShell);
  29                 // setBlockOnOpen(false);
  30         }
  31
  32         protected Point getInitialSize() {
  33                 return new Point(300, 180);
  34         }
  35
  36         @Override
  37         protected Control createContents(Composite parent) {
  38                 Control control = super.createContents(parent);
  39                 parent.pack();
  40                 return control;
  41         }
  42
  43         protected Control createDialogArea(Composite parent) {
  44                 Composite dialogarea = (Composite) super.createDialogArea(parent);
  45                 Composite composite = new Composite(dialogarea, SWT.NONE);
  46                 composite.setLayout(new GridLayout(2, false));
  47                 composite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false));
  48                 createCallbackHandlers(composite);
  49                 // parent.pack();
  50                 return composite;
  51         }
  52
  53         private void createCallbackHandlers(Composite composite) {
  54                 Callback[] callbacks = getCallbacks();
  55                 for (int i = 0; i < callbacks.length; i++) {
  56                         Callback callback = callbacks[i];
  57                         if (callback instanceof TextOutputCallback) {
  58                                 createLabelTextoutputHandler(composite,
  59                                                 (TextOutputCallback) callback);
  60                         } else if (callback instanceof NameCallback) {
  61                                 createNameHandler(composite, (NameCallback) callback);
  62                         } else if (callback instanceof PasswordCallback) {
  63                                 createPasswordHandler(composite, (PasswordCallback) callback);
  64                         }
  65                 }
  66         }
  67
  68         private void createPasswordHandler(Composite composite,
  69                         final PasswordCallback callback) {
  70                 Label label = new Label(composite, SWT.NONE);
  71                 label.setText(callback.getPrompt());
  72                 final Text passwordText = new Text(composite, SWT.SINGLE | SWT.LEAD
  73                                 | SWT.PASSWORD | SWT.BORDER);
  74                 passwordText
  75                                 .setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
  76                 passwordText.addModifyListener(new ModifyListener() {
  77
  78                         public void modifyText(ModifyEvent event) {
  79                                 // FIXME use getTextChars() in Eclipse 3.7
  80                                 callback.setPassword(passwordText.getText().toCharArray());
  81                         }
  82                 });
  83         }
  84
  85         private void createNameHandler(Composite composite,
  86                         final NameCallback callback) {
  87                 Label label = new Label(composite, SWT.NONE);
  88                 label.setText(callback.getPrompt());
  89                 final Text text = new Text(composite, SWT.SINGLE | SWT.LEAD
  90                                 | SWT.BORDER);
  91                 text.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
  92                 text.addModifyListener(new ModifyListener() {
  93
  94                         public void modifyText(ModifyEvent event) {
  95                                 callback.setName(text.getText());
  96                         }
  97                 });
  98         }
  99
 100         private void createLabelTextoutputHandler(Composite composite,
 101                         final TextOutputCallback callback) {
 102                 Label label = new Label(composite, SWT.NONE);
 103                 label.setText(callback.getMessage());
 104                 GridData data = new GridData(SWT.FILL, SWT.FILL, true, true);
 105                 data.horizontalSpan = 2;
 106                 label.setLayoutData(data);
 107                 // TODO: find a way to pass this information
 108                 // int messageType = callback.getMessageType();
 109                 // int dialogMessageType = IMessageProvider.NONE;
 110                 // switch (messageType) {
 111                 // case TextOutputCallback.INFORMATION:
 112                 // dialogMessageType = IMessageProvider.INFORMATION;
 113                 // break;
 114                 // case TextOutputCallback.WARNING:
 115                 // dialogMessageType = IMessageProvider.WARNING;
 116                 // break;
 117                 // case TextOutputCallback.ERROR:
 118                 // dialogMessageType = IMessageProvider.ERROR;
 119                 // break;
 120                 // }
 121                 // setMessage(callback.getMessage(), dialogMessageType);
 122         }
 123
 124         public void internalHandle() {
 125         }
 126
 127         // hack to simulate modal
 128         // see
 129         // http://dev.eclipse.org/mhonarc/newsLists/news.eclipse.platform.jface/msg00181.html
 130         // protected void setShellStyle(int newShellStyle) {
 131         // // turn off APPLICATION_MODAL
 132         // int newstyle = newShellStyle & ~SWT.APPLICATION_MODAL;
 133         // // turn on MODELESS
 134         // newstyle |= SWT.MODELESS;
 135         // super.setShellStyle(newstyle);
 136         // }
 137         //
 138         // public int open() {
 139         //
 140         // int retVal = super.open();
 141         // // this will let the caller wait till OK, Cancel is
 142         // // pressed, but will let the other GUI responsive
 143         // pumpMessages();
 144         // return retVal;
 145         // }
 146         //
 147         // protected void pumpMessages() {
 148         // Shell sh = getShell();
 149         // Display disp = sh.getDisplay();
 150         // while (!sh.isDisposed()) {
 151         // if (!disp.readAndDispatch())
 152         // disp.sleep();
 153         // }
 154         // disp.update();
 155         // }
 156
 157 }