org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/control/dialogs/NewConnectionDialog.java

   1 /**********************************************************************
   2  * Copyright (c) 2012 Ericsson
   3  *
   4  * All rights reserved. This program and the accompanying materials are
   5  * made available under the terms of the Eclipse Public License v1.0 which
   6  * accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *   Bernd Hufmann - Initial API and implementation
  11  **********************************************************************/
  12 package org.eclipse.linuxtools.lttng.ui.views.control.dialogs;
  13
  14 import java.util.Arrays;
  15
  16 import org.eclipse.jface.dialogs.Dialog;
  17 import org.eclipse.jface.dialogs.IDialogConstants;
  18 import org.eclipse.jface.dialogs.MessageDialog;
  19 import org.eclipse.linuxtools.lttng.ui.LTTngUiPlugin;
  20 import org.eclipse.linuxtools.lttng.ui.views.control.Messages;
  21 import org.eclipse.linuxtools.lttng.ui.views.control.model.ITraceControlComponent;
  22 import org.eclipse.rse.core.model.IHost;
  23 import org.eclipse.swt.SWT;
  24 import org.eclipse.swt.custom.CCombo;
  25 import org.eclipse.swt.events.SelectionEvent;
  26 import org.eclipse.swt.events.SelectionListener;
  27 import org.eclipse.swt.graphics.Point;
  28 import org.eclipse.swt.layout.GridData;
  29 import org.eclipse.swt.layout.GridLayout;
  30 import org.eclipse.swt.widgets.Button;
  31 import org.eclipse.swt.widgets.Composite;
  32 import org.eclipse.swt.widgets.Control;
  33 import org.eclipse.swt.widgets.Group;
  34 import org.eclipse.swt.widgets.Label;
  35 import org.eclipse.swt.widgets.Shell;
  36 import org.eclipse.swt.widgets.Text;
  37
  38 /**
  39  * <b><u>NewConnectionDialog</u></b>
  40  * <p>
  41  * Dialog box for connection information.
  42  * </p>
  43  */
  44 public class NewConnectionDialog extends Dialog implements INewConnectionDialog {
  45
  46     // ------------------------------------------------------------------------
  47     // Constants
  48     // ------------------------------------------------------------------------
  49     /**
  50      * The icon file for this dialog box.
  51      */
  52     public static final String TARGET_NEW_CONNECTION_ICON_FILE = "icons/elcl16/target_add.gif"; //$NON-NLS-1$
  53
  54     // ------------------------------------------------------------------------
  55     // Attributes
  56     // ------------------------------------------------------------------------
  57     /**
  58      * The dialog composite.
  59      */
  60     private Composite fDialogComposite = null;
  61     /**
  62      * The Group for the host combo box.
  63      */
  64     private Group fComboGroup = null;
  65     /**
  66      * The Group for the text input.
  67      */
  68     private Group fTextGroup = null;
  69     /**
  70      * The host combo box.
  71      */
  72     private CCombo fExistingHostsCombo = null;
  73     /**
  74      * The check box button for enabling/disabling the text input.
  75      */
  76     private Button fButton = null;
  77     /**
  78      * The text widget for the node name (alias)
  79      */
  80     private Text fConnectionNameText = null;
  81     /**
  82      * The text widget for the node address (IP or DNS name)
  83      */
  84     private Text fHostNameText = null;
  85     /**
  86      * The parent where the new node should be added.
  87      */
  88     private ITraceControlComponent fParent;
  89     /**
  90      * The node name (alias) string.
  91      */
  92     private String fConnectionName = null;
  93     /**
  94      * The node address (IP or DNS name) string.
  95      */
  96     private String fHostName = null;
  97
  98     /**
  99      * Input list of existing RSE hosts available for selection.
 100      */
 101     private IHost[] fExistingHosts = new IHost[0];
 102
 103     // ------------------------------------------------------------------------
 104     // Constructors
 105     // ------------------------------------------------------------------------
 106     public NewConnectionDialog(Shell shell, ITraceControlComponent parent, IHost[] hosts) {
 107         super(shell);
 108         fParent = parent;
 109         if (hosts != null) {
 110             fExistingHosts = Arrays.copyOf(hosts, hosts.length);
 111         }
 112         setShellStyle(SWT.RESIZE);
 113     }
 114
 115     // ------------------------------------------------------------------------
 116     // Accessors
 117     // ------------------------------------------------------------------------
 118     /*
 119      * (non-Javadoc)
 120      * @see org.eclipse.linuxtools.lttng.ui.views.control.dialogs.INewConnectionDialog#getConnectionName()
 121      */
 122     @Override
 123     public String getConnectionName() {
 124         return fConnectionName;
 125     }
 126
 127     /*
 128      * (non-Javadoc)
 129      * @see org.eclipse.linuxtools.lttng.ui.views.control.dialogs.INewConnectionDialog#getHostName()
 130      */
 131     @Override
 132     public String getHostName() {
 133         return fHostName;
 134     }
 135
 136     // ------------------------------------------------------------------------
 137     // Operations
 138     // ------------------------------------------------------------------------
 139     /*
 140      * (non-Javadoc)
 141      * @see org.eclipse.jface.window.Window#configureShell(org.eclipse.swt.widgets.Shell)
 142      */
 143     @Override
 144     protected void configureShell(Shell newShell) {
 145         super.configureShell(newShell);
 146         newShell.setText(Messages.TraceControl_NewDialogTitle);
 147         newShell.setImage(LTTngUiPlugin.getDefault().loadIcon(TARGET_NEW_CONNECTION_ICON_FILE));
 148     }
 149
 150     /*
 151      * (non-Javadoc)
 152      * @see org.eclipse.jface.dialogs.Dialog#createDialogArea(org.eclipse.swt.widgets.Composite)
 153      */
 154     @Override
 155     protected Control createDialogArea(Composite parent) {
 156
 157         // Main dialog panel
 158         fDialogComposite = new Composite(parent, SWT.NONE);
 159         GridLayout layout = new GridLayout(1, true);
 160         fDialogComposite.setLayout(layout);
 161         fDialogComposite.setLayoutData(new GridData(GridData.FILL_BOTH));
 162
 163         // Existing connections group
 164         fComboGroup = new Group(fDialogComposite, SWT.SHADOW_NONE);
 165         fComboGroup.setText(Messages.TraceControl_NewNodeExistingConnectionGroupName);
 166         layout = new GridLayout(2, true);
 167         fComboGroup.setLayout(layout);
 168         GridData data = new GridData(GridData.FILL_HORIZONTAL);
 169         fComboGroup.setLayoutData(data);
 170
 171         fExistingHostsCombo = new CCombo(fComboGroup, SWT.READ_ONLY);
 172         fExistingHostsCombo.setToolTipText(Messages.TraceControl_NewNodeComboToolTip);
 173         fExistingHostsCombo.setLayoutData(new GridData(GridData.FILL, GridData.CENTER, true, false, 2, 1));
 174
 175         String items[] = new String[fExistingHosts.length];
 176         for (int i = 0; i < items.length; i++) {
 177             items[i] = String.valueOf(fExistingHosts[i].getAliasName() + " - " + fExistingHosts[i].getHostName()); //$NON-NLS-1$
 178         }
 179
 180         fExistingHostsCombo.setItems(items);
 181         fExistingHostsCombo.setEnabled(fExistingHosts.length > 0);
 182
 183         // Node information grop
 184         fTextGroup = new Group(fDialogComposite, SWT.SHADOW_NONE);
 185         layout = new GridLayout(3, true);
 186         fTextGroup.setLayout(layout);
 187         data = new GridData(GridData.FILL_HORIZONTAL);
 188         fTextGroup.setLayoutData(data);
 189
 190         fButton = new Button(fTextGroup, SWT.CHECK);
 191         fButton.setLayoutData(new GridData(GridData.FILL, GridData.CENTER, true, false, 3, 1));
 192         fButton.setText(Messages.TraceControl_NewNodeEditButtonName);
 193         fButton.setEnabled(fExistingHosts.length > 0);
 194
 195         Label connectionNameLabel = new Label(fTextGroup, SWT.RIGHT);
 196         connectionNameLabel.setText(Messages.TraceControl_NewNodeConnectionNameLabel);
 197         fConnectionNameText = new Text(fTextGroup, SWT.NONE);
 198         fConnectionNameText.setToolTipText(Messages.TraceControl_NewNodeConnectionNameTooltip);
 199         fConnectionNameText.setEnabled(fExistingHosts.length == 0);
 200
 201         Label hostNameLabel = new Label(fTextGroup, SWT.RIGHT);
 202         hostNameLabel.setText(Messages.TraceControl_NewNodeHostNameLabel);
 203         fHostNameText = new Text(fTextGroup, SWT.NONE);
 204         fHostNameText.setToolTipText(Messages.TraceControl_NewNodeHostNameTooltip);
 205         fHostNameText.setEnabled(fExistingHosts.length == 0);
 206
 207         fButton.addSelectionListener(new SelectionListener() {
 208             @Override
 209             public void widgetSelected(SelectionEvent e) {
 210                 if (fButton.getSelection()) {
 211                     fExistingHostsCombo.deselectAll();
 212                     fExistingHostsCombo.setEnabled(false);
 213                     fConnectionNameText.setEnabled(true);
 214                     fHostNameText.setEnabled(true);
 215                 } else {
 216                     fExistingHostsCombo.setEnabled(true);
 217                     fConnectionNameText.setEnabled(false);
 218                     fHostNameText.setEnabled(false);
 219                 }
 220             }
 221
 222             @Override
 223             public void widgetDefaultSelected(SelectionEvent e) {
 224             }
 225         });
 226
 227         fExistingHostsCombo.addSelectionListener(new SelectionListener() {
 228             @Override
 229             public void widgetSelected(SelectionEvent e) {
 230                 int index = fExistingHostsCombo.getSelectionIndex();
 231                 fConnectionNameText.setText(fExistingHosts[index].getAliasName());
 232                 fHostNameText.setText(fExistingHosts[index].getHostName());
 233             }
 234
 235             @Override
 236             public void widgetDefaultSelected(SelectionEvent e) {
 237             }
 238         });
 239
 240         // layout widgets
 241         data = new GridData(GridData.FILL_HORIZONTAL);
 242         fHostNameText.setText("666.666.666.666"); //$NON-NLS-1$
 243         Point minSize = fHostNameText.computeSize(SWT.DEFAULT, SWT.DEFAULT, true);
 244         data.widthHint = minSize.x + 5;
 245         data.horizontalSpan = 2;
 246
 247         fConnectionNameText.setLayoutData(data);
 248         fHostNameText.setLayoutData(data);
 249
 250         fHostNameText.setText(""); //$NON-NLS-1$
 251
 252         return fDialogComposite;
 253     }
 254
 255     /*
 256      * (non-Javadoc)
 257      * @see org.eclipse.jface.dialogs.Dialog#createButtonsForButtonBar(org.eclipse.swt.widgets.Composite)
 258      */
 259     @Override
 260     protected void createButtonsForButtonBar(Composite parent) {
 261         createButton(parent, IDialogConstants.OK_ID, "&Ok", true); //$NON-NLS-1$
 262     }
 263
 264     /*
 265      * (non-Javadoc)
 266      * @see org.eclipse.jface.dialogs.Dialog#okPressed()
 267      */
 268     @Override
 269     protected void okPressed() {
 270         // Validate input data
 271         fConnectionName = fConnectionNameText.getText();
 272         fHostName = fHostNameText.getText();
 273
 274         if (!"".equals(fHostName)) { //$NON-NLS-1$
 275             // If no node name is specified use the node address as name
 276             if ("".equals(fConnectionName)) { //$NON-NLS-1$
 277                 fConnectionName = fHostName;
 278             }
 279             // Check if node with name already exists in parent
 280             if(fParent.containsChild(fConnectionName)) {
 281                 MessageDialog.openError(getShell(),
 282                         Messages.TraceControl_NewDialogTitle,
 283                         Messages.TraceControl_AlreadyExistsError + " (" + fConnectionName + ")");  //$NON-NLS-1$//$NON-NLS-2$
 284                 return;
 285             }
 286         }
 287         else {
 288             return;
 289         }
 290         // validation successful -> call super.okPressed()
 291         super.okPressed();
 292     }
 293 }