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