org.eclipse.linuxtools.lttng2.ui/src/org/eclipse/linuxtools/internal/lttng2/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.internal.lttng2.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.internal.lttng2.ui.Activator;
  20 import org.eclipse.linuxtools.internal.lttng2.ui.views.control.messages.Messages;
  21 import org.eclipse.linuxtools.internal.lttng2.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  * <p>
  40  * Dialog box for connection information.
  41  * </p>
  42  *
  43  * @author Bernd Hufmann
  44  */
  45 public class NewConnectionDialog extends Dialog implements INewConnectionDialog {
  46
  47     // ------------------------------------------------------------------------
  48     // Constants
  49     // ------------------------------------------------------------------------
  50     /**
  51      * The icon file for this dialog box.
  52      */
  53     public static final String TARGET_NEW_CONNECTION_ICON_FILE = "icons/elcl16/target_add.gif"; //$NON-NLS-1$
  54
  55     // ------------------------------------------------------------------------
  56     // Attributes
  57     // ------------------------------------------------------------------------
  58     /**
  59      * The dialog composite.
  60      */
  61     private Composite fDialogComposite = null;
  62     /**
  63      * The Group for the host combo box.
  64      */
  65     private Group fComboGroup = null;
  66     /**
  67      * The Group for the text input.
  68      */
  69     private Group fTextGroup = null;
  70     /**
  71      * The host combo box.
  72      */
  73     private CCombo fExistingHostsCombo = null;
  74     /**
  75      * The check box button for enabling/disabling the text input.
  76      */
  77     private Button fButton = null;
  78     /**
  79      * The text widget for the node name (alias)
  80      */
  81     private Text fConnectionNameText = null;
  82     /**
  83      * The text widget for the node address (IP or DNS name)
  84      */
  85     private Text fHostNameText = null;
  86     /**
  87      * The parent where the new node should be added.
  88      */
  89     private ITraceControlComponent fParent;
  90     /**
  91      * The node name (alias) string.
  92      */
  93     private String fConnectionName = null;
  94     /**
  95      * The node address (IP or DNS name) string.
  96      */
  97     private String fHostName = null;
  98
  99     /**
 100      * Input list of existing RSE hosts available for selection.
 101      */
 102     private IHost[] fExistingHosts = new IHost[0];
 103
 104     // ------------------------------------------------------------------------
 105     // Constructors
 106     // ------------------------------------------------------------------------
 107     /**
 108      * Constructor
 109      *
 110      * @param shell
 111      *            The shell
 112      */
 113     public NewConnectionDialog(Shell shell) {
 114         super(shell);
 115         setShellStyle(SWT.RESIZE);
 116     }
 117
 118     // ------------------------------------------------------------------------
 119     // Accessors
 120     // ------------------------------------------------------------------------
 121     /*
 122      * (non-Javadoc)
 123      * @see org.eclipse.linuxtools.internal.lttng2.ui.views.control.dialogs.INewConnectionDialog#getConnectionName()
 124      */
 125     @Override
 126     public String getConnectionName() {
 127         return fConnectionName;
 128     }
 129
 130     /*
 131      * (non-Javadoc)
 132      * @see org.eclipse.linuxtools.internal.lttng2.ui.views.control.dialogs.INewConnectionDialog#getHostName()
 133      */
 134     @Override
 135     public String getHostName() {
 136         return fHostName;
 137     }
 138
 139     /*
 140      * (non-Javadoc)
 141      * @see org.eclipse.linuxtools.internal.lttng2.ui.views.control.dialogs.INewConnectionDialog#setTraceControlParent(org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.ITraceControlComponent)
 142      */
 143     @Override
 144     public void setTraceControlParent(ITraceControlComponent parent) {
 145         fParent = parent;
 146     }
 147
 148     /*
 149      * (non-Javadoc)
 150      * @see org.eclipse.linuxtools.internal.lttng2.ui.views.control.dialogs.INewConnectionDialog#setHosts(org.eclipse.rse.core.model.IHost[])
 151      */
 152     @Override
 153     public void setHosts(IHost[] hosts) {
 154         if (hosts != null) {
 155             fExistingHosts = Arrays.copyOf(hosts, hosts.length);
 156         }
 157     }
 158
 159     // ------------------------------------------------------------------------
 160     // Operations
 161     // ------------------------------------------------------------------------
 162     /*
 163      * (non-Javadoc)
 164      * @see org.eclipse.jface.window.Window#configureShell(org.eclipse.swt.widgets.Shell)
 165      */
 166     @Override
 167     protected void configureShell(Shell newShell) {
 168         super.configureShell(newShell);
 169         newShell.setText(Messages.TraceControl_NewDialogTitle);
 170         newShell.setImage(Activator.getDefault().loadIcon(TARGET_NEW_CONNECTION_ICON_FILE));
 171     }
 172
 173     /*
 174      * (non-Javadoc)
 175      * @see org.eclipse.jface.dialogs.Dialog#createDialogArea(org.eclipse.swt.widgets.Composite)
 176      */
 177     @Override
 178     protected Control createDialogArea(Composite parent) {
 179
 180         // Main dialog panel
 181         fDialogComposite = new Composite(parent, SWT.NONE);
 182         GridLayout layout = new GridLayout(1, true);
 183         fDialogComposite.setLayout(layout);
 184         fDialogComposite.setLayoutData(new GridData(GridData.FILL_BOTH));
 185
 186         // Existing connections group
 187         fComboGroup = new Group(fDialogComposite, SWT.SHADOW_NONE);
 188         fComboGroup.setText(Messages.TraceControl_NewNodeExistingConnectionGroupName);
 189         layout = new GridLayout(2, true);
 190         fComboGroup.setLayout(layout);
 191         GridData data = new GridData(GridData.FILL_HORIZONTAL);
 192         fComboGroup.setLayoutData(data);
 193
 194         fExistingHostsCombo = new CCombo(fComboGroup, SWT.READ_ONLY);
 195         fExistingHostsCombo.setToolTipText(Messages.TraceControl_NewNodeComboToolTip);
 196         fExistingHostsCombo.setLayoutData(new GridData(GridData.FILL, GridData.CENTER, true, false, 2, 1));
 197
 198         String items[] = new String[fExistingHosts.length];
 199         for (int i = 0; i < items.length; i++) {
 200             items[i] = String.valueOf(fExistingHosts[i].getAliasName() + " - " + fExistingHosts[i].getHostName()); //$NON-NLS-1$
 201         }
 202
 203         fExistingHostsCombo.setItems(items);
 204         fExistingHostsCombo.setEnabled(fExistingHosts.length > 0);
 205
 206         // Node information grop
 207         fTextGroup = new Group(fDialogComposite, SWT.SHADOW_NONE);
 208         layout = new GridLayout(3, true);
 209         fTextGroup.setLayout(layout);
 210         data = new GridData(GridData.FILL_HORIZONTAL);
 211         fTextGroup.setLayoutData(data);
 212
 213         fButton = new Button(fTextGroup, SWT.CHECK);
 214         fButton.setLayoutData(new GridData(GridData.FILL, GridData.CENTER, true, false, 3, 1));
 215         fButton.setText(Messages.TraceControl_NewNodeEditButtonName);
 216         fButton.setEnabled(fExistingHosts.length > 0);
 217
 218         Label connectionNameLabel = new Label(fTextGroup, SWT.RIGHT);
 219         connectionNameLabel.setText(Messages.TraceControl_NewNodeConnectionNameLabel);
 220         fConnectionNameText = new Text(fTextGroup, SWT.NONE);
 221         fConnectionNameText.setToolTipText(Messages.TraceControl_NewNodeConnectionNameTooltip);
 222         fConnectionNameText.setEnabled(fExistingHosts.length == 0);
 223
 224         Label hostNameLabel = new Label(fTextGroup, SWT.RIGHT);
 225         hostNameLabel.setText(Messages.TraceControl_NewNodeHostNameLabel);
 226         fHostNameText = new Text(fTextGroup, SWT.NONE);
 227         fHostNameText.setToolTipText(Messages.TraceControl_NewNodeHostNameTooltip);
 228         fHostNameText.setEnabled(fExistingHosts.length == 0);
 229
 230         fButton.addSelectionListener(new SelectionListener() {
 231             @Override
 232             public void widgetSelected(SelectionEvent e) {
 233                 if (fButton.getSelection()) {
 234                     fExistingHostsCombo.deselectAll();
 235                     fExistingHostsCombo.setEnabled(false);
 236                     fConnectionNameText.setEnabled(true);
 237                     fHostNameText.setEnabled(true);
 238                 } else {
 239                     fExistingHostsCombo.setEnabled(true);
 240                     fConnectionNameText.setEnabled(false);
 241                     fHostNameText.setEnabled(false);
 242                 }
 243             }
 244
 245             @Override
 246             public void widgetDefaultSelected(SelectionEvent e) {
 247             }
 248         });
 249
 250         fExistingHostsCombo.addSelectionListener(new SelectionListener() {
 251             @Override
 252             public void widgetSelected(SelectionEvent e) {
 253                 int index = fExistingHostsCombo.getSelectionIndex();
 254                 fConnectionNameText.setText(fExistingHosts[index].getAliasName());
 255                 fHostNameText.setText(fExistingHosts[index].getHostName());
 256             }
 257
 258             @Override
 259             public void widgetDefaultSelected(SelectionEvent e) {
 260             }
 261         });
 262
 263         // layout widgets
 264         data = new GridData(GridData.FILL_HORIZONTAL);
 265         fHostNameText.setText("666.666.666.666"); //$NON-NLS-1$
 266         Point minSize = fHostNameText.computeSize(SWT.DEFAULT, SWT.DEFAULT, true);
 267         data.widthHint = minSize.x + 5;
 268         data.horizontalSpan = 2;
 269
 270         fConnectionNameText.setLayoutData(data);
 271         fHostNameText.setLayoutData(data);
 272
 273         fHostNameText.setText(""); //$NON-NLS-1$
 274
 275         return fDialogComposite;
 276     }
 277
 278     /*
 279      * (non-Javadoc)
 280      * @see org.eclipse.jface.dialogs.Dialog#createButtonsForButtonBar(org.eclipse.swt.widgets.Composite)
 281      */
 282     @Override
 283     protected void createButtonsForButtonBar(Composite parent) {
 284         createButton(parent, IDialogConstants.CANCEL_ID, "&Cancel", true); //$NON-NLS-1$
 285         createButton(parent, IDialogConstants.OK_ID, "&Ok", true); //$NON-NLS-1$
 286     }
 287
 288     /*
 289      * (non-Javadoc)
 290      * @see org.eclipse.jface.dialogs.Dialog#okPressed()
 291      */
 292     @Override
 293     protected void okPressed() {
 294         // Validate input data
 295         fConnectionName = fConnectionNameText.getText();
 296         fHostName = fHostNameText.getText();
 297
 298         if (!"".equals(fHostName)) { //$NON-NLS-1$
 299             // If no node name is specified use the node address as name
 300             if ("".equals(fConnectionName)) { //$NON-NLS-1$
 301                 fConnectionName = fHostName;
 302             }
 303             // Check if node with name already exists in parent
 304             if(fParent.containsChild(fConnectionName)) {
 305                 MessageDialog.openError(getShell(),
 306                         Messages.TraceControl_NewDialogTitle,
 307                         Messages.TraceControl_AlreadyExistsError + " (" + fConnectionName + ")");  //$NON-NLS-1$//$NON-NLS-2$
 308                 return;
 309             }
 310         }
 311         else {
 312             return;
 313         }
 314         // validation successful -> call super.okPressed()
 315         super.okPressed();
 316     }
 317 }