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.core.BundleContextCallback;
  25 import org.argeo.security.ui.SecurityUiPlugin;
  26 import org.argeo.util.LocaleCallback;
  27 import org.eclipse.swt.SWT;
  28 import org.eclipse.swt.events.ModifyEvent;
  29 import org.eclipse.swt.events.ModifyListener;
  30 import org.eclipse.swt.events.SelectionEvent;
  31 import org.eclipse.swt.events.SelectionListener;
  32 import org.eclipse.swt.graphics.Point;
  33 import org.eclipse.swt.graphics.Rectangle;
  34 import org.eclipse.swt.layout.GridData;
  35 import org.eclipse.swt.layout.GridLayout;
  36 import org.eclipse.swt.widgets.Combo;
  37 import org.eclipse.swt.widgets.Composite;
  38 import org.eclipse.swt.widgets.Control;
  39 import org.eclipse.swt.widgets.Display;
  40 import org.eclipse.swt.widgets.Label;
  41 import org.eclipse.swt.widgets.Shell;
  42 import org.eclipse.swt.widgets.Text;
  43
  44 /** Default authentication dialog, to be used as {@link CallbackHandler}. */
  45 public class DefaultLoginDialog extends AbstractLoginDialog {
  46         public DefaultLoginDialog() {
  47                 this(SecurityUiPlugin.display.get().getActiveShell());
  48         }
  49
  50         public DefaultLoginDialog(Shell parentShell) {
  51                 super(parentShell);
  52         }
  53
  54         protected Point getInitialSize() {
  55                 return new Point(350, 180);
  56         }
  57
  58         @Override
  59         protected Control createContents(Composite parent) {
  60                 Control control = super.createContents(parent);
  61                 parent.pack();
  62
  63                 // Move the dialog to the center of the top level shell.
  64                 Rectangle shellBounds;
  65                 if (Display.getCurrent().getActiveShell() != null) // RCP
  66                         shellBounds = Display.getCurrent().getActiveShell().getBounds();
  67                 else
  68                         shellBounds = Display.getCurrent().getBounds();// RAP
  69                 Point dialogSize = parent.getSize();
  70                 int x = shellBounds.x + (shellBounds.width - dialogSize.x) / 2;
  71                 int y = shellBounds.y + (shellBounds.height - dialogSize.y) / 2;
  72                 parent.setLocation(x, y);
  73                 return control;
  74         }
  75
  76         protected Control createDialogArea(Composite parent) {
  77                 Composite dialogarea = (Composite) super.createDialogArea(parent);
  78                 Composite composite = new Composite(dialogarea, SWT.NONE);
  79                 composite.setLayout(new GridLayout(2, false));
  80                 composite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false));
  81                 createCallbackHandlers(composite);
  82                 // parent.pack();
  83                 return composite;
  84         }
  85
  86         private void createCallbackHandlers(Composite composite) {
  87                 Callback[] callbacks = getCallbacks();
  88                 for (int i = 0; i < callbacks.length; i++) {
  89                         Callback callback = callbacks[i];
  90                         if (callback instanceof TextOutputCallback) {
  91                                 createLabelTextoutputHandler(composite,
  92                                                 (TextOutputCallback) callback);
  93                         } else if (callback instanceof NameCallback) {
  94                                 createNameHandler(composite, (NameCallback) callback);
  95                         } else if (callback instanceof PasswordCallback) {
  96                                 createPasswordHandler(composite, (PasswordCallback) callback);
  97                         } else if (callback instanceof LocaleCallback) {
  98                                 createLocaleHandler(composite, (LocaleCallback) callback);
  99                         } else if (callback instanceof BundleContextCallback) {
 100                                 ((BundleContextCallback) callback)
 101                                                 .setBundleContext(SecurityUiPlugin.getBundleContext());
 102                         }
 103                 }
 104         }
 105
 106         private void createPasswordHandler(Composite composite,
 107                         final PasswordCallback callback) {
 108                 Label label = new Label(composite, SWT.NONE);
 109                 label.setText(callback.getPrompt());
 110                 final Text passwordText = new Text(composite, SWT.SINGLE | SWT.LEAD
 111                                 | SWT.PASSWORD | SWT.BORDER);
 112                 passwordText
 113                                 .setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
 114                 passwordText.addModifyListener(new ModifyListener() {
 115
 116                         public void modifyText(ModifyEvent event) {
 117                                 // FIXME use getTextChars() in Eclipse 3.7
 118                                 callback.setPassword(passwordText.getText().toCharArray());
 119                         }
 120                 });
 121         }
 122
 123         private void createLocaleHandler(Composite composite,
 124                         final LocaleCallback callback) {
 125                 String[] labels = callback.getSupportedLocalesLabels();
 126                 if (labels.length == 0)
 127                         return;
 128                 Label label = new Label(composite, SWT.NONE);
 129                 label.setText(callback.getPrompt());
 130
 131                 final Combo combo = new Combo(composite, SWT.READ_ONLY);
 132                 combo.setItems(labels);
 133                 combo.select(callback.getDefaultIndex());
 134                 combo.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
 135                 combo.addSelectionListener(new SelectionListener() {
 136                         @Override
 137                         public void widgetSelected(SelectionEvent e) {
 138                                 callback.setSelectedIndex(combo.getSelectionIndex());
 139                         }
 140
 141                         @Override
 142                         public void widgetDefaultSelected(SelectionEvent e) {
 143                         }
 144                 });
 145         }
 146
 147         private void createNameHandler(Composite composite,
 148                         final NameCallback callback) {
 149                 Label label = new Label(composite, SWT.NONE);
 150                 label.setText(callback.getPrompt());
 151                 final Text text = new Text(composite, SWT.SINGLE | SWT.LEAD
 152                                 | SWT.BORDER);
 153                 if (callback.getDefaultName() != null) {
 154                         // set default value, if provided
 155                         text.setText(callback.getDefaultName());
 156                         callback.setName(callback.getDefaultName());
 157                 }
 158                 text.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
 159                 text.addModifyListener(new ModifyListener() {
 160
 161                         public void modifyText(ModifyEvent event) {
 162                                 callback.setName(text.getText());
 163                         }
 164                 });
 165         }
 166
 167         private void createLabelTextoutputHandler(Composite composite,
 168                         final TextOutputCallback callback) {
 169                 Label label = new Label(composite, SWT.NONE);
 170                 label.setText(callback.getMessage());
 171                 GridData data = new GridData(SWT.FILL, SWT.FILL, true, true);
 172                 data.horizontalSpan = 2;
 173                 label.setLayoutData(data);
 174                 // TODO: find a way to pass this information
 175                 // int messageType = callback.getMessageType();
 176                 // int dialogMessageType = IMessageProvider.NONE;
 177                 // switch (messageType) {
 178                 // case TextOutputCallback.INFORMATION:
 179                 // dialogMessageType = IMessageProvider.INFORMATION;
 180                 // break;
 181                 // case TextOutputCallback.WARNING:
 182                 // dialogMessageType = IMessageProvider.WARNING;
 183                 // break;
 184                 // case TextOutputCallback.ERROR:
 185                 // dialogMessageType = IMessageProvider.ERROR;
 186                 // break;
 187                 // }
 188                 // setMessage(callback.getMessage(), dialogMessageType);
 189         }
 190
 191         public void internalHandle() {
 192         }
 193 }