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     public NewConnectionDialog(Shell shell) {
 108         super(shell);
 109         setShellStyle(SWT.RESIZE);
 110     }
 111
 112     // ------------------------------------------------------------------------
 113     // Accessors
 114     // ------------------------------------------------------------------------
 115     /*
 116      * (non-Javadoc)
 117      * @see org.eclipse.linuxtools.internal.lttng2.ui.views.control.dialogs.INewConnectionDialog#getConnectionName()
 118      */
 119     @Override
 120     public String getConnectionName() {
 121         return fConnectionName;
 122     }
 123
 124     /*
 125      * (non-Javadoc)
 126      * @see org.eclipse.linuxtools.internal.lttng2.ui.views.control.dialogs.INewConnectionDialog#getHostName()
 127      */
 128     @Override
 129     public String getHostName() {
 130         return fHostName;
 131     }
 132
 133     /*
 134      * (non-Javadoc)
 135      * @see org.eclipse.linuxtools.internal.lttng2.ui.views.control.dialogs.INewConnectionDialog#setTraceControlParent(org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.ITraceControlComponent)
 136      */
 137     @Override
 138     public void setTraceControlParent(ITraceControlComponent parent) {
 139         fParent = parent;
 140     }
 141
 142     /*
 143      * (non-Javadoc)
 144      * @see org.eclipse.linuxtools.internal.lttng2.ui.views.control.dialogs.INewConnectionDialog#setHosts(org.eclipse.rse.core.model.IHost[])
 145      */
 146     @Override
 147     public void setHosts(IHost[] hosts) {
 148         if (hosts != null) {
 149             fExistingHosts = Arrays.copyOf(hosts, hosts.length);
 150         }
 151     }
 152
 153     // ------------------------------------------------------------------------
 154     // Operations
 155     // ------------------------------------------------------------------------
 156     /*
 157      * (non-Javadoc)
 158      * @see org.eclipse.jface.window.Window#configureShell(org.eclipse.swt.widgets.Shell)
 159      */
 160     @Override
 161     protected void configureShell(Shell newShell) {
 162         super.configureShell(newShell);
 163         newShell.setText(Messages.TraceControl_NewDialogTitle);
 164         newShell.setImage(Activator.getDefault().loadIcon(TARGET_NEW_CONNECTION_ICON_FILE));
 165     }
 166
 167     /*
 168      * (non-Javadoc)
 169      * @see org.eclipse.jface.dialogs.Dialog#createDialogArea(org.eclipse.swt.widgets.Composite)
 170      */
 171     @Override
 172     protected Control createDialogArea(Composite parent) {
 173
 174         // Main dialog panel
 175         fDialogComposite = new Composite(parent, SWT.NONE);
 176         GridLayout layout = new GridLayout(1, true);
 177         fDialogComposite.setLayout(layout);
 178         fDialogComposite.setLayoutData(new GridData(GridData.FILL_BOTH));
 179
 180         // Existing connections group
 181         fComboGroup = new Group(fDialogComposite, SWT.SHADOW_NONE);
 182         fComboGroup.setText(Messages.TraceControl_NewNodeExistingConnectionGroupName);
 183         layout = new GridLayout(2, true);
 184         fComboGroup.setLayout(layout);
 185         GridData data = new GridData(GridData.FILL_HORIZONTAL);
 186         fComboGroup.setLayoutData(data);
 187
 188         fExistingHostsCombo = new CCombo(fComboGroup, SWT.READ_ONLY);
 189         fExistingHostsCombo.setToolTipText(Messages.TraceControl_NewNodeComboToolTip);
 190         fExistingHostsCombo.setLayoutData(new GridData(GridData.FILL, GridData.CENTER, true, false, 2, 1));
 191
 192         String items[] = new String[fExistingHosts.length];
 193         for (int i = 0; i < items.length; i++) {
 194             items[i] = String.valueOf(fExistingHosts[i].getAliasName() + " - " + fExistingHosts[i].getHostName()); //$NON-NLS-1$
 195         }
 196
 197         fExistingHostsCombo.setItems(items);
 198         fExistingHostsCombo.setEnabled(fExistingHosts.length > 0);
 199
 200         // Node information grop
 201         fTextGroup = new Group(fDialogComposite, SWT.SHADOW_NONE);
 202         layout = new GridLayout(3, true);
 203         fTextGroup.setLayout(layout);
 204         data = new GridData(GridData.FILL_HORIZONTAL);
 205         fTextGroup.setLayoutData(data);
 206
 207         fButton = new Button(fTextGroup, SWT.CHECK);
 208         fButton.setLayoutData(new GridData(GridData.FILL, GridData.CENTER, true, false, 3, 1));
 209         fButton.setText(Messages.TraceControl_NewNodeEditButtonName);
 210         fButton.setEnabled(fExistingHosts.length > 0);
 211
 212         Label connectionNameLabel = new Label(fTextGroup, SWT.RIGHT);
 213         connectionNameLabel.setText(Messages.TraceControl_NewNodeConnectionNameLabel);
 214         fConnectionNameText = new Text(fTextGroup, SWT.NONE);
 215         fConnectionNameText.setToolTipText(Messages.TraceControl_NewNodeConnectionNameTooltip);
 216         fConnectionNameText.setEnabled(fExistingHosts.length == 0);
 217
 218         Label hostNameLabel = new Label(fTextGroup, SWT.RIGHT);
 219         hostNameLabel.setText(Messages.TraceControl_NewNodeHostNameLabel);
 220         fHostNameText = new Text(fTextGroup, SWT.NONE);
 221         fHostNameText.setToolTipText(Messages.TraceControl_NewNodeHostNameTooltip);
 222         fHostNameText.setEnabled(fExistingHosts.length == 0);
 223
 224         fButton.addSelectionListener(new SelectionListener() {
 225             @Override
 226             public void widgetSelected(SelectionEvent e) {
 227                 if (fButton.getSelection()) {
 228                     fExistingHostsCombo.deselectAll();
 229                     fExistingHostsCombo.setEnabled(false);
 230                     fConnectionNameText.setEnabled(true);
 231                     fHostNameText.setEnabled(true);
 232                 } else {
 233                     fExistingHostsCombo.setEnabled(true);
 234                     fConnectionNameText.setEnabled(false);
 235                     fHostNameText.setEnabled(false);
 236                 }
 237             }
 238
 239             @Override
 240             public void widgetDefaultSelected(SelectionEvent e) {
 241             }
 242         });
 243
 244         fExistingHostsCombo.addSelectionListener(new SelectionListener() {
 245             @Override
 246             public void widgetSelected(SelectionEvent e) {
 247                 int index = fExistingHostsCombo.getSelectionIndex();
 248                 fConnectionNameText.setText(fExistingHosts[index].getAliasName());
 249                 fHostNameText.setText(fExistingHosts[index].getHostName());
 250             }
 251
 252             @Override
 253             public void widgetDefaultSelected(SelectionEvent e) {
 254             }
 255         });
 256
 257         // layout widgets
 258         data = new GridData(GridData.FILL_HORIZONTAL);
 259         fHostNameText.setText("666.666.666.666"); //$NON-NLS-1$
 260         Point minSize = fHostNameText.computeSize(SWT.DEFAULT, SWT.DEFAULT, true);
 261         data.widthHint = minSize.x + 5;
 262         data.horizontalSpan = 2;
 263
 264         fConnectionNameText.setLayoutData(data);
 265         fHostNameText.setLayoutData(data);
 266
 267         fHostNameText.setText(""); //$NON-NLS-1$
 268
 269         return fDialogComposite;
 270     }
 271
 272     /*
 273      * (non-Javadoc)
 274      * @see org.eclipse.jface.dialogs.Dialog#createButtonsForButtonBar(org.eclipse.swt.widgets.Composite)
 275      */
 276     @Override
 277     protected void createButtonsForButtonBar(Composite parent) {
 278         createButton(parent, IDialogConstants.CANCEL_ID, "&Cancel", true); //$NON-NLS-1$
 279         createButton(parent, IDialogConstants.OK_ID, "&Ok", true); //$NON-NLS-1$
 280     }
 281
 282     /*
 283      * (non-Javadoc)
 284      * @see org.eclipse.jface.dialogs.Dialog#okPressed()
 285      */
 286     @Override
 287     protected void okPressed() {
 288         // Validate input data
 289         fConnectionName = fConnectionNameText.getText();
 290         fHostName = fHostNameText.getText();
 291
 292         if (!"".equals(fHostName)) { //$NON-NLS-1$
 293             // If no node name is specified use the node address as name
 294             if ("".equals(fConnectionName)) { //$NON-NLS-1$
 295                 fConnectionName = fHostName;
 296             }
 297             // Check if node with name already exists in parent
 298             if(fParent.containsChild(fConnectionName)) {
 299                 MessageDialog.openError(getShell(),
 300                         Messages.TraceControl_NewDialogTitle,
 301                         Messages.TraceControl_AlreadyExistsError + " (" + fConnectionName + ")");  //$NON-NLS-1$//$NON-NLS-2$
 302                 return;
 303             }
 304         }
 305         else {
 306             return;
 307         }
 308         // validation successful -> call super.okPressed()
 309         super.okPressed();
 310     }
 311 }