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

   1 /*
   2  * Copyright (C) 2007-2012 Argeo GmbH
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *         http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 package org.argeo.security.ui.dialogs;
  17
  18 import javax.security.auth.callback.Callback;
  19 import javax.security.auth.callback.CallbackHandler;
  20 import javax.security.auth.callback.NameCallback;
  21 import javax.security.auth.callback.PasswordCallback;
  22 import javax.security.auth.callback.TextOutputCallback;
  23
  24 import org.argeo.security.ui.SecurityUiPlugin;
  25 import org.argeo.util.LocaleCallback;
  26 import org.eclipse.swt.SWT;
  27 import org.eclipse.swt.events.ModifyEvent;
  28 import org.eclipse.swt.events.ModifyListener;
  29 import org.eclipse.swt.events.SelectionEvent;
  30 import org.eclipse.swt.events.SelectionListener;
  31 import org.eclipse.swt.graphics.Point;
  32 import org.eclipse.swt.graphics.Rectangle;
  33 import org.eclipse.swt.layout.GridData;
  34 import org.eclipse.swt.layout.GridLayout;
  35 import org.eclipse.swt.widgets.Combo;
  36 import org.eclipse.swt.widgets.Composite;
  37 import org.eclipse.swt.widgets.Control;
  38 import org.eclipse.swt.widgets.Display;
  39 import org.eclipse.swt.widgets.Label;
  40 import org.eclipse.swt.widgets.Shell;
  41 import org.eclipse.swt.widgets.Text;
  42
  43 /** Default authentication dialog, to be used as {@link CallbackHandler}. */
  44 public class DefaultLoginDialog extends AbstractLoginDialog {
  45         public DefaultLoginDialog() {
  46                 this(SecurityUiPlugin.display.get().getActiveShell());
  47         }
  48
  49         public DefaultLoginDialog(Shell parentShell) {
  50                 super(parentShell);
  51         }
  52
  53         protected Point getInitialSize() {
  54                 return new Point(350, 180);
  55         }
  56
  57         @Override
  58         protected Control createContents(Composite parent) {
  59                 Control control = super.createContents(parent);
  60                 parent.pack();
  61
  62                 // Move the dialog to the center of the top level shell.
  63                 Rectangle shellBounds;
  64                 if (Display.getCurrent().getActiveShell() != null) // RCP
  65                         shellBounds = Display.getCurrent().getActiveShell().getBounds();
  66                 else
  67                         shellBounds = Display.getCurrent().getBounds();// RAP
  68                 Point dialogSize = parent.getSize();
  69                 int x = shellBounds.x + (shellBounds.width - dialogSize.x) / 2;
  70                 int y = shellBounds.y + (shellBounds.height - dialogSize.y) / 2;
  71                 parent.setLocation(x, y);
  72                 return control;
  73         }
  74
  75         protected Control createDialogArea(Composite parent) {
  76                 Composite dialogarea = (Composite) super.createDialogArea(parent);
  77                 Composite composite = new Composite(dialogarea, SWT.NONE);
  78                 composite.setLayout(new GridLayout(2, false));
  79                 composite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false));
  80                 createCallbackHandlers(composite);
  81                 // parent.pack();
  82                 return composite;
  83         }
  84
  85         private void createCallbackHandlers(Composite composite) {
  86                 Callback[] callbacks = getCallbacks();
  87                 for (int i = 0; i < callbacks.length; i++) {
  88                         Callback callback = callbacks[i];
  89                         if (callback instanceof TextOutputCallback) {
  90                                 createLabelTextoutputHandler(composite,
  91                                                 (TextOutputCallback) callback);
  92                         } else if (callback instanceof NameCallback) {
  93                                 createNameHandler(composite, (NameCallback) callback);
  94                         } else if (callback instanceof PasswordCallback) {
  95                                 createPasswordHandler(composite, (PasswordCallback) callback);
  96                         } else if (callback instanceof LocaleCallback) {
  97                                 createLocaleHandler(composite, (LocaleCallback) callback);
  98                         }
  99                 }
 100         }
 101
 102         private void createPasswordHandler(Composite composite,
 103                         final PasswordCallback callback) {
 104                 Label label = new Label(composite, SWT.NONE);
 105                 label.setText(callback.getPrompt());
 106                 final Text passwordText = new Text(composite, SWT.SINGLE | SWT.LEAD
 107                                 | SWT.PASSWORD | SWT.BORDER);
 108                 passwordText
 109                                 .setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
 110                 passwordText.addModifyListener(new ModifyListener() {
 111
 112                         public void modifyText(ModifyEvent event) {
 113                                 // FIXME use getTextChars() in Eclipse 3.7
 114                                 callback.setPassword(passwordText.getText().toCharArray());
 115                         }
 116                 });
 117         }
 118
 119         private void createLocaleHandler(Composite composite,
 120                         final LocaleCallback callback) {
 121                 String[] labels = callback.getSupportedLocalesLabels();
 122                 if (labels.length == 0)
 123                         return;
 124                 Label label = new Label(composite, SWT.NONE);
 125                 label.setText(callback.getPrompt());
 126
 127                 final Combo combo = new Combo(composite, SWT.READ_ONLY);
 128                 combo.setItems(labels);
 129                 combo.select(callback.getDefaultIndex());
 130                 combo.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
 131                 combo.addSelectionListener(new SelectionListener() {
 132                         @Override
 133                         public void widgetSelected(SelectionEvent e) {
 134                                 callback.setSelectedIndex(combo.getSelectionIndex());
 135                         }
 136
 137                         @Override
 138                         public void widgetDefaultSelected(SelectionEvent e) {
 139                         }
 140                 });
 141         }
 142
 143         private void createNameHandler(Composite composite,
 144                         final NameCallback callback) {
 145                 Label label = new Label(composite, SWT.NONE);
 146                 label.setText(callback.getPrompt());
 147                 final Text text = new Text(composite, SWT.SINGLE | SWT.LEAD
 148                                 | SWT.BORDER);
 149                 if (callback.getDefaultName() != null) {
 150                         // set default value, if provided
 151                         text.setText(callback.getDefaultName());
 152                         callback.setName(callback.getDefaultName());
 153                 }
 154                 text.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
 155                 text.addModifyListener(new ModifyListener() {
 156
 157                         public void modifyText(ModifyEvent event) {
 158                                 callback.setName(text.getText());
 159                         }
 160                 });
 161         }
 162
 163         private void createLabelTextoutputHandler(Composite composite,
 164                         final TextOutputCallback callback) {
 165                 Label label = new Label(composite, SWT.NONE);
 166                 label.setText(callback.getMessage());
 167                 GridData data = new GridData(SWT.FILL, SWT.FILL, true, true);
 168                 data.horizontalSpan = 2;
 169                 label.setLayoutData(data);
 170                 // TODO: find a way to pass this information
 171                 // int messageType = callback.getMessageType();
 172                 // int dialogMessageType = IMessageProvider.NONE;
 173                 // switch (messageType) {
 174                 // case TextOutputCallback.INFORMATION:
 175                 // dialogMessageType = IMessageProvider.INFORMATION;
 176                 // break;
 177                 // case TextOutputCallback.WARNING:
 178                 // dialogMessageType = IMessageProvider.WARNING;
 179                 // break;
 180                 // case TextOutputCallback.ERROR:
 181                 // dialogMessageType = IMessageProvider.ERROR;
 182                 // break;
 183                 // }
 184                 // setMessage(callback.getMessage(), dialogMessageType);
 185         }
 186
 187         public void internalHandle() {
 188         }
 189 }