net.sourceforge.phpeclipse.xdebug.ui/src/net/sourceforge/phpeclipse/xdebug/ui/php/launching/PHPEnvironmentTab.java

   1 /*
   2  * Created on 14.07.2004
   3  *
   4  * TODO To change the template for this generated file go to
   5  * Window - Preferences - Java - Code Style - Code Templates
   6  */
   7 package net.sourceforge.phpeclipse.xdebug.ui.php.launching;
   8
   9 import java.text.MessageFormat;
  10 import java.util.Comparator;
  11 import java.util.HashMap;
  12 import java.util.Iterator;
  13 import java.util.Map;
  14 import java.util.TreeMap;
  15
  16 import net.sourceforge.phpeclipse.xdebug.core.XDebugCorePlugin;
  17 import net.sourceforge.phpeclipse.xdebug.ui.EnvironmentVariable;
  18 import net.sourceforge.phpeclipse.xdebug.ui.MultipleInputDialog;
  19 import net.sourceforge.phpeclipse.xdebug.ui.XDebugUIPluginImages;
  20
  21 import org.eclipse.core.runtime.CoreException;
  22 import org.eclipse.core.runtime.IStatus;
  23 import org.eclipse.core.runtime.Status;
  24 import org.eclipse.debug.core.DebugPlugin;
  25 import org.eclipse.debug.core.ILaunchConfiguration;
  26 import org.eclipse.debug.core.ILaunchConfigurationWorkingCopy;
  27 import org.eclipse.debug.core.ILaunchManager;
  28 import org.eclipse.debug.ui.AbstractLaunchConfigurationTab;
  29 import org.eclipse.debug.ui.IDebugUIConstants;
  30 import org.eclipse.jface.dialogs.Dialog;
  31 import org.eclipse.jface.dialogs.IDialogSettings;
  32 import org.eclipse.jface.dialogs.MessageDialog;
  33 import org.eclipse.jface.viewers.ColumnLayoutData;
  34 import org.eclipse.jface.viewers.ColumnWeightData;
  35 import org.eclipse.jface.viewers.DoubleClickEvent;
  36 import org.eclipse.jface.viewers.IDoubleClickListener;
  37 import org.eclipse.jface.viewers.ILabelProvider;
  38 import org.eclipse.jface.viewers.ILabelProviderListener;
  39 import org.eclipse.jface.viewers.ISelectionChangedListener;
  40 import org.eclipse.jface.viewers.IStructuredContentProvider;
  41 import org.eclipse.jface.viewers.IStructuredSelection;
  42 import org.eclipse.jface.viewers.ITableLabelProvider;
  43 import org.eclipse.jface.viewers.LabelProvider;
  44 import org.eclipse.jface.viewers.SelectionChangedEvent;
  45 import org.eclipse.jface.viewers.TableLayout;
  46 import org.eclipse.jface.viewers.TableViewer;
  47 import org.eclipse.jface.viewers.Viewer;
  48 import org.eclipse.jface.viewers.ViewerSorter;
  49 import org.eclipse.jface.window.Window;
  50 import org.eclipse.swt.SWT;
  51 import org.eclipse.swt.events.SelectionAdapter;
  52 import org.eclipse.swt.events.SelectionEvent;
  53 import org.eclipse.swt.graphics.Font;
  54 import org.eclipse.swt.graphics.Image;
  55 import org.eclipse.swt.layout.GridData;
  56 import org.eclipse.swt.layout.GridLayout;
  57 import org.eclipse.swt.widgets.Button;
  58 import org.eclipse.swt.widgets.Composite;
  59 import org.eclipse.swt.widgets.Label;
  60 import org.eclipse.swt.widgets.Shell;
  61 import org.eclipse.swt.widgets.Table;
  62 import org.eclipse.swt.widgets.TableColumn;
  63 import org.eclipse.swt.widgets.TableItem;
  64 import org.eclipse.ui.dialogs.ListSelectionDialog;
  65
  66 /**
  67  * @author Christian
  68  *
  69  * TODO To change the template for this generated type comment go to Window -
  70  * Preferences - Java - Code Style - Code Templates
  71  */
  72 public class PHPEnvironmentTab extends AbstractLaunchConfigurationTab {
  73
  74         protected TableViewer environmentTable;
  75
  76         protected String[] envTableColumnHeaders = { "Variable", "Value" };
  77
  78         protected ColumnLayoutData[] envTableColumnLayouts = {
  79                         new ColumnWeightData(50), new ColumnWeightData(50) };
  80
  81         private static final String NAME_LABEL = "Name";
  82
  83         private static final String VALUE_LABEL = "Value";
  84
  85         protected static final String P_VARIABLE = "variable"; //$NON-NLS-1$
  86
  87         protected static final String P_VALUE = "value"; //$NON-NLS-1$
  88
  89         protected static String[] envTableColumnProperties = { P_VARIABLE, P_VALUE };
  90
  91         protected Button envAddButton;
  92
  93         protected Button envAddCGIButton;
  94
  95         protected Button envEditButton;
  96
  97         protected Button envRemoveButton;
  98
  99         protected Button appendEnvironment;
 100
 101         protected Button replaceEnvironment;
 102
 103         protected Button envSelectButton;
 104
 105         /**
 106          * Content provider for the environment table
 107          */
 108         protected class EnvironmentVariableContentProvider implements
 109                         IStructuredContentProvider {
 110                 public Object[] getElements(Object inputElement) {
 111                         EnvironmentVariable[] elements = new EnvironmentVariable[0];
 112                         ILaunchConfiguration config = (ILaunchConfiguration) inputElement;
 113                         Map m;
 114                         try {
 115                                 m = config.getAttribute(
 116                                                 ILaunchManager.ATTR_ENVIRONMENT_VARIABLES, (Map) null);
 117                         } catch (CoreException e) {
 118                                 XDebugCorePlugin.log(new Status(IStatus.ERROR,
 119                                                 XDebugCorePlugin.PLUGIN_ID, IStatus.ERROR,
 120                                                 "Error reading configuration", e)); //$NON-NLS-1$
 121                                 return elements;
 122                         }
 123                         if (m != null && !m.isEmpty()) {
 124                                 elements = new EnvironmentVariable[m.size()];
 125                                 String[] varNames = new String[m.size()];
 126                                 m.keySet().toArray(varNames);
 127                                 for (int i = 0; i < m.size(); i++) {
 128                                         elements[i] = new EnvironmentVariable(varNames[i],
 129                                                         (String) m.get(varNames[i]));
 130                                 }
 131                         }
 132                         return elements;
 133                 }
 134
 135                 public void dispose() {
 136                 }
 137
 138                 public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
 139                         if (newInput == null) {
 140                                 return;
 141                         }
 142                         if (viewer instanceof TableViewer) {
 143                                 TableViewer tableViewer = (TableViewer) viewer;
 144                                 if (tableViewer.getTable().isDisposed()) {
 145                                         return;
 146                                 }
 147                                 tableViewer.setSorter(new ViewerSorter() {
 148                                         public int compare(Viewer iviewer, Object e1, Object e2) {
 149                                                 if (e1 == null) {
 150                                                         return -1;
 151                                                 } else if (e2 == null) {
 152                                                         return 1;
 153                                                 } else {
 154                                                         return ((EnvironmentVariable) e1).getName()
 155                                                                         .compareToIgnoreCase(
 156                                                                                         ((EnvironmentVariable) e2)
 157                                                                                                         .getName());
 158                                                 }
 159                                         }
 160                                 });
 161                         }
 162                 }
 163         }
 164
 165         /**
 166          * Label provider for the environment table
 167          */
 168         public class EnvironmentVariableLabelProvider extends LabelProvider
 169                         implements ITableLabelProvider {
 170                 public String getColumnText(Object element, int columnIndex) {
 171                         String result = null;
 172                         if (element != null) {
 173                                 EnvironmentVariable var = (EnvironmentVariable) element;
 174                                 switch (columnIndex) {
 175                                 case 0: // variable
 176                                         result = var.getName();
 177                                         break;
 178                                 case 1: // value
 179                                         result = var.getValue();
 180                                         break;
 181                                 }
 182                         }
 183                         return result;
 184                 }
 185
 186                 public Image getColumnImage(Object element, int columnIndex) {
 187                         return null;
 188                 }
 189         }
 190
 191         /*
 192          * (non-Javadoc)
 193          *
 194          * @see org.eclipse.debug.ui.ILaunchConfigurationTab#createControl(org.eclipse.swt.widgets.Composite)
 195          */
 196         public void createControl(Composite parent) {
 197                 // Create main composite
 198                 Composite mainComposite = new Composite(parent, SWT.NONE);
 199                 setControl(mainComposite);
 200                 // WorkbenchHelp.setHelp(getControl(),
 201                 // IDebugHelpContextIds.LAUNCH_CONFIGURATION_DIALOG_ENVIRONMENT_TAB);
 202                 GridLayout layout = new GridLayout();
 203                 layout.numColumns = 2;
 204                 GridData gridData = new GridData(GridData.FILL_HORIZONTAL);
 205                 mainComposite.setLayout(layout);
 206                 mainComposite.setLayoutData(gridData);
 207                 mainComposite.setFont(parent.getFont());
 208
 209                 createEnvironmentTable(mainComposite);
 210                 createTableButtons(mainComposite);
 211                 createAppendReplace(mainComposite);
 212
 213                 Dialog.applyDialogFont(mainComposite);
 214         }
 215
 216         /**
 217          * Creates and configures the widgets which allow the user to choose whether
 218          * the specified environment should be appended to the native environment or
 219          * if it should completely replace it.
 220          *
 221          * @param parent
 222          *            the composite in which the widgets should be created
 223          */
 224         protected void createAppendReplace(Composite parent) {
 225                 Composite appendReplaceComposite = new Composite(parent, SWT.NONE);
 226                 GridData gridData = new GridData();
 227                 gridData.horizontalSpan = 2;
 228                 GridLayout layout = new GridLayout();
 229                 appendReplaceComposite.setLayoutData(gridData);
 230                 appendReplaceComposite.setLayout(layout);
 231                 appendReplaceComposite.setFont(parent.getFont());
 232
 233                 appendEnvironment = createRadioButton(appendReplaceComposite,
 234                                 "&Append environment to native environment");
 235                 appendEnvironment.addSelectionListener(new SelectionAdapter() {
 236                         public void widgetSelected(SelectionEvent e) {
 237                                 updateLaunchConfigurationDialog();
 238                         }
 239                 });
 240                 replaceEnvironment = createRadioButton(appendReplaceComposite,
 241                                 "Re&place native environment with specified environment");
 242         }
 243
 244         /**
 245          * Updates the enablement of the append/replace widgets. The widgets should
 246          * disable when there are no environment variables specified.
 247          */
 248         protected void updateAppendReplace() {
 249                 boolean enable = environmentTable.getTable().getItemCount() > 0;
 250                 appendEnvironment.setEnabled(enable);
 251                 replaceEnvironment.setEnabled(enable);
 252         }
 253
 254         /**
 255          * Creates and configures the table that displayed the key/value pairs that
 256          * comprise the environment.
 257          *
 258          * @param parent
 259          *            the composite in which the table should be created
 260          */
 261         protected void createEnvironmentTable(Composite parent) {
 262                 Font font = parent.getFont();
 263                 // Create table composite
 264                 Composite tableComposite = new Composite(parent, SWT.NONE);
 265                 GridLayout layout = new GridLayout();
 266                 layout.marginHeight = 0;
 267                 layout.marginWidth = 0;
 268                 layout.numColumns = 1;
 269                 GridData gridData = new GridData(GridData.FILL_BOTH);
 270                 gridData.heightHint = 150;
 271                 tableComposite.setLayout(layout);
 272                 tableComposite.setLayoutData(gridData);
 273                 tableComposite.setFont(font);
 274                 // Create label
 275                 Label label = new Label(tableComposite, SWT.NONE);
 276                 label.setFont(font);
 277                 label.setText("Environment variables to &set");
 278                 // Create table
 279                 environmentTable = new TableViewer(tableComposite, SWT.BORDER
 280                                 | SWT.H_SCROLL | SWT.V_SCROLL | SWT.MULTI | SWT.FULL_SELECTION);
 281                 Table table = environmentTable.getTable();
 282                 TableLayout tableLayout = new TableLayout();
 283                 table.setLayout(tableLayout);
 284                 table.setHeaderVisible(true);
 285                 table.setFont(font);
 286                 gridData = new GridData(GridData.FILL_BOTH);
 287                 environmentTable.getControl().setLayoutData(gridData);
 288                 environmentTable
 289                                 .setContentProvider(new EnvironmentVariableContentProvider());
 290                 environmentTable
 291                                 .setLabelProvider(new EnvironmentVariableLabelProvider());
 292                 environmentTable.setColumnProperties(envTableColumnProperties);
 293                 environmentTable
 294                                 .addSelectionChangedListener(new ISelectionChangedListener() {
 295                                         public void selectionChanged(SelectionChangedEvent event) {
 296                                                 handleTableSelectionChanged(event);
 297                                         }
 298                                 });
 299                 environmentTable.addDoubleClickListener(new IDoubleClickListener() {
 300                         public void doubleClick(DoubleClickEvent event) {
 301                                 if (!environmentTable.getSelection().isEmpty()) {
 302                                         handleEnvEditButtonSelected();
 303                                 }
 304                         }
 305                 });
 306                 // Create columns
 307                 for (int i = 0; i < envTableColumnHeaders.length; i++) {
 308                         tableLayout.addColumnData(envTableColumnLayouts[i]);
 309                         TableColumn tc = new TableColumn(table, SWT.NONE, i);
 310                         tc.setResizable(envTableColumnLayouts[i].resizable);
 311                         tc.setText(envTableColumnHeaders[i]);
 312                 }
 313         }
 314
 315         /**
 316          * Responds to a selection changed event in the environment table
 317          *
 318          * @param event
 319          *            the selection change event
 320          */
 321         protected void handleTableSelectionChanged(SelectionChangedEvent event) {
 322                 int size = ((IStructuredSelection) event.getSelection()).size();
 323                 envEditButton.setEnabled(size == 1);
 324                 envRemoveButton.setEnabled(size > 0);
 325         }
 326
 327         /**
 328          * Creates the add/edit/remove buttons for the environment table
 329          *
 330          * @param parent
 331          *            the composite in which the buttons should be created
 332          */
 333         protected void createTableButtons(Composite parent) {
 334                 // Create button composite
 335                 Composite buttonComposite = new Composite(parent, SWT.NONE);
 336                 GridLayout glayout = new GridLayout();
 337                 glayout.marginHeight = 0;
 338                 glayout.marginWidth = 0;
 339                 glayout.numColumns = 1;
 340                 GridData gdata = new GridData(GridData.VERTICAL_ALIGN_BEGINNING
 341                                 | GridData.HORIZONTAL_ALIGN_END);
 342                 buttonComposite.setLayout(glayout);
 343                 buttonComposite.setLayoutData(gdata);
 344                 buttonComposite.setFont(parent.getFont());
 345
 346                 createVerticalSpacer(buttonComposite, 1);
 347                 // Create buttons
 348                 envAddButton = createPushButton(buttonComposite, "New", null);
 349                 envAddButton.addSelectionListener(new SelectionAdapter() {
 350                         public void widgetSelected(SelectionEvent event) {
 351                                 handleEnvAddButtonSelected();
 352                         }
 353                 });
 354                 envAddCGIButton = createPushButton(buttonComposite, "CGIButton", null);
 355                 envAddCGIButton.addSelectionListener(new SelectionAdapter() {
 356                         public void widgetSelected(SelectionEvent event) {
 357                                 handleEnvAddCGIButtonSelected();
 358                         }
 359                 });
 360
 361                 envSelectButton = createPushButton(buttonComposite, "Se&lect...", null);
 362                 envSelectButton.addSelectionListener(new SelectionAdapter() {
 363                         public void widgetSelected(SelectionEvent event) {
 364                                 handleEnvSelectButtonSelected();
 365                         }
 366                 });
 367                 envEditButton = createPushButton(buttonComposite, "Edit", null);
 368                 envEditButton.addSelectionListener(new SelectionAdapter() {
 369                         public void widgetSelected(SelectionEvent event) {
 370                                 handleEnvEditButtonSelected();
 371                         }
 372                 });
 373                 envEditButton.setEnabled(false);
 374                 envRemoveButton = createPushButton(buttonComposite, "Remove", null);
 375                 envRemoveButton.addSelectionListener(new SelectionAdapter() {
 376                         public void widgetSelected(SelectionEvent event) {
 377                                 handleEnvRemoveButtonSelected();
 378                         }
 379                 });
 380                 envRemoveButton.setEnabled(false);
 381         }
 382
 383         /**
 384          * Adds a new environment variable to the table.
 385          */
 386         protected void handleEnvAddButtonSelected() {
 387                 MultipleInputDialog dialog = new MultipleInputDialog(getShell(),
 388                                 "New Environment Variable");
 389                 dialog.addTextField(NAME_LABEL, null, false);
 390                 dialog.addVariablesField(VALUE_LABEL, null, true);
 391
 392                 if (dialog.open() != Window.OK) {
 393                         return;
 394                 }
 395
 396                 String name = dialog.getStringValue(NAME_LABEL);
 397                 String value = dialog.getStringValue(VALUE_LABEL);
 398
 399                 if (name != null && value != null && name.length() > 0
 400                                 && value.length() > 0) {
 401                         addVariable(new EnvironmentVariable(name.trim(), value.trim()));
 402                         updateAppendReplace();
 403                 }
 404         }
 405
 406         /**
 407          * Attempts to add the given variable. Returns whether the variable was
 408          * added or not (as when the user answers not to overwrite an existing
 409          * variable).
 410          *
 411          * @param variable
 412          *            the variable to add
 413          * @return whether the variable was added
 414          */
 415         protected boolean addVariable(EnvironmentVariable variable) {
 416                 String name = variable.getName();
 417                 TableItem[] items = environmentTable.getTable().getItems();
 418                 for (int i = 0; i < items.length; i++) {
 419                         EnvironmentVariable existingVariable = (EnvironmentVariable) items[i]
 420                                         .getData();
 421                         if (existingVariable.getName().equals(name)) {
 422                                 boolean overWrite = MessageDialog
 423                                                 .openQuestion(
 424                                                                 getShell(),
 425                                                                 "Overwrite variable?",
 426                                                                 MessageFormat
 427                                                                                 .format(
 428                                                                                                 "A variable named {0} already exists. Overwrite?",
 429                                                                                                 new String[] { name }));
 430                                 if (!overWrite) {
 431                                         return false;
 432                                 }
 433                                 environmentTable.remove(existingVariable);
 434                                 break;
 435                         }
 436                 }
 437                 environmentTable.add(variable);
 438                 updateLaunchConfigurationDialog();
 439                 return true;
 440         }
 441
 442         /**
 443          * Displays a dialog that allows user to select native environment variables
 444          * to add to the table.
 445          */
 446         private void handleEnvSelectButtonSelected() {
 447                 // get Environment Variables from the OS
 448                 Map envVariables = getNativeEnvironment();
 449
 450                 // get Environment Variables from the table
 451                 TableItem[] items = environmentTable.getTable().getItems();
 452                 for (int i = 0; i < items.length; i++) {
 453                         EnvironmentVariable var = (EnvironmentVariable) items[i].getData();
 454                         envVariables.remove(var.getName());
 455                 }
 456
 457                 ListSelectionDialog dialog = new NativeEnvironmentDialog(getShell(),
 458                                 envVariables, createSelectionDialogContentProvider(),
 459                                 createSelectionDialogLabelProvider(),
 460                                 "Select &environment variables to add:");
 461                 dialog.setTitle("Select Environment Variables");
 462
 463                 int button = dialog.open();
 464                 if (button == Window.OK) {
 465                         Object[] selected = dialog.getResult();
 466                         for (int i = 0; i < selected.length; i++) {
 467                                 environmentTable.add(selected[i]);
 468                         }
 469                 }
 470
 471                 updateAppendReplace();
 472                 updateLaunchConfigurationDialog();
 473         }
 474
 475         /**
 476          * Displays a dialog that allows user to select native environment variables
 477          * to add to the table.
 478          */
 479         private void handleEnvAddCGIButtonSelected() {
 480
 481                 Map envVariables = new HashMap();
 482
 483                 envVariables.put("HTTP_COOKIE", new EnvironmentVariable("HTTP_COOKIE",
 484                                 "TestCookie=1"));
 485                 envVariables.put("REDIRECT_QUERY_STRING", new EnvironmentVariable(
 486                                 "REDIRECT_QUERY_STRING", ""));
 487                 envVariables.put("REDIRECT_STATUS", new EnvironmentVariable(
 488                                 "REDIRECT_STATUS", "200"));
 489                 envVariables.put("REDIRECT_URL", new EnvironmentVariable(
 490                                 "REDIRECT_URL", ""));
 491                 envVariables.put("SERVER_SOFTWARE", new EnvironmentVariable(
 492                                 "SERVER_SOFTWARE", "DBG / 2.1"));
 493                 envVariables.put("SERVER_NAME", new EnvironmentVariable("SERVER_NAME",
 494                                 "localhost"));
 495                 envVariables.put("SERVER_ADDR", new EnvironmentVariable("SERVER_ADDR",
 496                                 "127.0.0.1"));
 497                 envVariables.put("SERVER_PORT", new EnvironmentVariable("SERVER_PORT",
 498                                 "80"));
 499                 envVariables.put("REMOTE_ADDR", new EnvironmentVariable("REMOTE_ADDR",
 500                                 "127.0.0.1"));
 501                 envVariables.put("GATEWAY_INTERFACE", new EnvironmentVariable(
 502                                 "GATEWAY_INTERFACE", "CGI / 1.1"));
 503                 envVariables.put("SERVER_PROTOCOL", new EnvironmentVariable(
 504                                 "SERVER_PROTOCOL", "HTTP / 1.1"));
 505                 envVariables.put("REQUEST_METHOD", new EnvironmentVariable(
 506                                 "REQUEST_METHOD", "GET"));
 507                 envVariables.put("QUERY_STRING", new EnvironmentVariable(
 508                                 "QUERY_STRING", ""));
 509                 envVariables.put("REDIRECT_QUERY_STRING", new EnvironmentVariable(
 510                                 "REDIRECT_QUERY_STRING", ""));
 511                 // envVariables.put("REQUEST_URI" + OSFilePath;
 512                 // envVariables.put("PATH_INFO=" + OSFilePath;
 513                 // envVariables.put("PATH_TRANSLATED=" + OSFilePath;
 514
 515                 // get Environment Variables from the table
 516                 TableItem[] items = environmentTable.getTable().getItems();
 517                 for (int i = 0; i < items.length; i++) {
 518                         EnvironmentVariable var = (EnvironmentVariable) items[i].getData();
 519                         envVariables.remove(var.getName());
 520                 }
 521
 522                 ListSelectionDialog dialog = new NativeEnvironmentDialog(getShell(),
 523                                 envVariables, createSelectionDialogContentProvider(),
 524                                 createSelectionDialogLabelProvider(),
 525                                 "Select &environment variables to add:");
 526                 dialog.setTitle("Select Environment Variables");
 527
 528                 int button = dialog.open();
 529                 if (button == Window.OK) {
 530                         Object[] selected = dialog.getResult();
 531                         for (int i = 0; i < selected.length; i++) {
 532                                 environmentTable.add(selected[i]);
 533                         }
 534                 }
 535
 536                 updateAppendReplace();
 537                 updateLaunchConfigurationDialog();
 538         }
 539
 540         /**
 541          * Creates a label provider for the native native environment variable
 542          * selection dialog.
 543          *
 544          * @return A label provider for the native native environment variable
 545          *         selection dialog.
 546          */
 547         private ILabelProvider createSelectionDialogLabelProvider() {
 548                 return new ILabelProvider() {
 549                         public Image getImage(Object element) {
 550                                 return null;
 551                         }
 552
 553                         public String getText(Object element) {
 554                                 EnvironmentVariable var = (EnvironmentVariable) element;
 555                                 return var.getName() + " [" + var.getValue() + "]"; //$NON-NLS-1$ //$NON-NLS-2$
 556                         }
 557
 558                         public void addListener(ILabelProviderListener listener) {
 559                         }
 560
 561                         public void dispose() {
 562                         }
 563
 564                         public boolean isLabelProperty(Object element, String property) {
 565                                 return false;
 566                         }
 567
 568                         public void removeListener(ILabelProviderListener listener) {
 569                         }
 570                 };
 571         }
 572
 573         /**
 574          * Creates a content provider for the native native environment variable
 575          * selection dialog.
 576          *
 577          * @return A content provider for the native native environment variable
 578          *         selection dialog.
 579          */
 580         private IStructuredContentProvider createSelectionDialogContentProvider() {
 581                 return new IStructuredContentProvider() {
 582                         public Object[] getElements(Object inputElement) {
 583                                 EnvironmentVariable[] elements = null;
 584                                 if (inputElement instanceof HashMap) {
 585                                         Comparator comparator = new Comparator() {
 586                                                 public int compare(Object o1, Object o2) {
 587                                                         String s1 = (String) o1;
 588                                                         String s2 = (String) o2;
 589                                                         return s1.compareTo(s2);
 590                                                 }
 591
 592                                         };
 593                                         TreeMap envVars = new TreeMap(comparator);
 594                                         envVars.putAll((Map) inputElement);
 595                                         elements = new EnvironmentVariable[envVars.size()];
 596                                         int index = 0;
 597                                         for (Iterator iterator = envVars.keySet().iterator(); iterator
 598                                                         .hasNext(); index++) {
 599                                                 Object key = iterator.next();
 600                                                 elements[index] = (EnvironmentVariable) envVars
 601                                                                 .get(key);
 602                                         }
 603                                 }
 604                                 return elements;
 605                         }
 606
 607                         public void dispose() {
 608                         }
 609
 610                         public void inputChanged(Viewer viewer, Object oldInput,
 611                                         Object newInput) {
 612                         }
 613                 };
 614         }
 615
 616         /**
 617          * Gets native environment variable from the LaunchManager. Creates
 618          * EnvironmentVariable objects.
 619          *
 620          * @return Map of name - EnvironmentVariable pairs based on native
 621          *         environment.
 622          */
 623         private Map getNativeEnvironment() {
 624                 Map stringVars = DebugPlugin.getDefault().getLaunchManager()
 625                                 .getNativeEnvironment();
 626                 HashMap vars = new HashMap();
 627                 for (Iterator i = stringVars.keySet().iterator(); i.hasNext();) {
 628                         String key = (String) i.next();
 629                         String value = (String) stringVars.get(key);
 630                         vars.put(key, new EnvironmentVariable(key, value));
 631                 }
 632                 return vars;
 633         }
 634
 635         /**
 636          * Creates an editor for the value of the selected environment variable.
 637          */
 638         private void handleEnvEditButtonSelected() {
 639                 IStructuredSelection sel = (IStructuredSelection) environmentTable
 640                                 .getSelection();
 641                 EnvironmentVariable var = (EnvironmentVariable) sel.getFirstElement();
 642                 if (var == null) {
 643                         return;
 644                 }
 645                 String originalName = var.getName();
 646                 String value = var.getValue();
 647                 MultipleInputDialog dialog = new MultipleInputDialog(getShell(),
 648                                 "Edit Environment Variable");
 649                 dialog.addTextField(NAME_LABEL, originalName, false);
 650                 dialog.addVariablesField(VALUE_LABEL, value, true);
 651
 652                 if (dialog.open() != Window.OK) {
 653                         return;
 654                 }
 655                 String name = dialog.getStringValue(NAME_LABEL);
 656                 value = dialog.getStringValue(VALUE_LABEL);
 657                 if (!originalName.equals(name)) {
 658                         if (addVariable(new EnvironmentVariable(name, value))) {
 659                                 environmentTable.remove(var);
 660                         }
 661                 } else {
 662                         var.setValue(value);
 663                         environmentTable.update(var, null);
 664                         updateLaunchConfigurationDialog();
 665                 }
 666         }
 667
 668         /**
 669          * Removes the selected environment variable from the table.
 670          */
 671         private void handleEnvRemoveButtonSelected() {
 672                 IStructuredSelection sel = (IStructuredSelection) environmentTable
 673                                 .getSelection();
 674                 environmentTable.getControl().setRedraw(false);
 675                 for (Iterator i = sel.iterator(); i.hasNext();) {
 676                         EnvironmentVariable var = (EnvironmentVariable) i.next();
 677                         environmentTable.remove(var);
 678                 }
 679                 environmentTable.getControl().setRedraw(true);
 680                 updateAppendReplace();
 681                 updateLaunchConfigurationDialog();
 682         }
 683
 684         /**
 685          * Updates the environment table for the given launch configuration
 686          *
 687          * @param configuration
 688          */
 689         protected void updateEnvironment(ILaunchConfiguration configuration) {
 690                 environmentTable.setInput(configuration);
 691         }
 692
 693         /*
 694          * (non-Javadoc)
 695          *
 696          * @see org.eclipse.debug.ui.ILaunchConfigurationTab#setDefaults(org.eclipse.debug.core.ILaunchConfigurationWorkingCopy)
 697          */
 698         public void setDefaults(ILaunchConfigurationWorkingCopy configuration) {
 699         }
 700
 701         /*
 702          * (non-Javadoc)
 703          *
 704          * @see org.eclipse.debug.ui.ILaunchConfigurationTab#initializeFrom(org.eclipse.debug.core.ILaunchConfiguration)
 705          */
 706         public void initializeFrom(ILaunchConfiguration configuration) {
 707                 boolean append = true;
 708                 try {
 709                         append = configuration.getAttribute(
 710                                         ILaunchManager.ATTR_APPEND_ENVIRONMENT_VARIABLES, true);
 711                 } catch (CoreException e) {
 712                         XDebugCorePlugin.log(e.getStatus());
 713                 }
 714                 if (append) {
 715                         appendEnvironment.setSelection(true);
 716                         replaceEnvironment.setSelection(false);
 717                 } else {
 718                         replaceEnvironment.setSelection(true);
 719                         appendEnvironment.setSelection(false);
 720                 }
 721                 updateEnvironment(configuration);
 722                 updateAppendReplace();
 723         }
 724
 725         /**
 726          * Stores the environment in the given configuration
 727          *
 728          * @see org.eclipse.debug.ui.ILaunchConfigurationTab#performApply(org.eclipse.debug.core.ILaunchConfigurationWorkingCopy)
 729          */
 730         public void performApply(ILaunchConfigurationWorkingCopy configuration) {
 731                 // Convert the table's items into a Map so that this can be saved in the
 732                 // configuration's attributes.
 733                 TableItem[] items = environmentTable.getTable().getItems();
 734                 Map map = new HashMap(items.length);
 735                 for (int i = 0; i < items.length; i++) {
 736                         EnvironmentVariable var = (EnvironmentVariable) items[i].getData();
 737                         map.put(var.getName(), var.getValue());
 738                 }
 739                 if (map.size() == 0) {
 740                         configuration.setAttribute(
 741                                         ILaunchManager.ATTR_ENVIRONMENT_VARIABLES, (Map) null);
 742                 } else {
 743                         configuration.setAttribute(
 744                                         ILaunchManager.ATTR_ENVIRONMENT_VARIABLES, map);
 745                 }
 746                 configuration.setAttribute(
 747                                 ILaunchManager.ATTR_APPEND_ENVIRONMENT_VARIABLES,
 748                                 appendEnvironment.getSelection());
 749         }
 750
 751         /*
 752          * (non-Javadoc)
 753          *
 754          * @see org.eclipse.debug.ui.ILaunchConfigurationTab#getName()
 755          */
 756         public String getName() {
 757                 return "Environment";
 758         }
 759
 760         /*
 761          * (non-Javadoc)
 762          *
 763          * @see org.eclipse.debug.ui.ILaunchConfigurationTab#getImage()
 764          */
 765         public Image getImage() {
 766                 return XDebugUIPluginImages
 767                                 .get(XDebugUIPluginImages.IMG_EVIEW_ENVIROMENT_TAB);
 768         }
 769
 770         /*
 771          * (non-Javadoc)
 772          *
 773          * @see org.eclipse.debug.ui.ILaunchConfigurationTab#activated(org.eclipse.debug.core.ILaunchConfigurationWorkingCopy)
 774          */
 775         public void activated(ILaunchConfigurationWorkingCopy workingCopy) {
 776                 // do nothing when activated
 777         }
 778
 779         /*
 780          * (non-Javadoc)
 781          *
 782          * @see org.eclipse.debug.ui.ILaunchConfigurationTab#deactivated(org.eclipse.debug.core.ILaunchConfigurationWorkingCopy)
 783          */
 784         public void deactivated(ILaunchConfigurationWorkingCopy workingCopy) {
 785                 // do nothing when deactivated
 786         }
 787
 788         private class NativeEnvironmentDialog extends ListSelectionDialog {
 789                 public NativeEnvironmentDialog(Shell parentShell, Object input,
 790                                 IStructuredContentProvider contentProvider,
 791                                 ILabelProvider labelProvider, String message) {
 792                         super(parentShell, input, contentProvider, labelProvider, message);
 793                         setShellStyle(getShellStyle() | SWT.RESIZE);
 794                 }
 795
 796                 protected IDialogSettings getDialogSettings() {
 797                         IDialogSettings settings = XDebugCorePlugin.getDefault()
 798                                         .getDialogSettings();
 799                         IDialogSettings section = settings
 800                                         .getSection(getDialogSettingsSectionName());
 801                         if (section == null) {
 802                                 section = settings
 803                                                 .addNewSection(getDialogSettingsSectionName());
 804                         }
 805                         return section;
 806                 }
 807
 808                 /**
 809                  * Returns the name of the section that this dialog stores its settings
 810                  * in
 811                  *
 812                  * @return String
 813                  */
 814                 protected String getDialogSettingsSectionName() {
 815                         return IDebugUIConstants.PLUGIN_ID
 816                                         + ".ENVIRONMENT_TAB.NATIVE_ENVIROMENT_DIALOG"; //$NON-NLS-1$
 817                 }
 818
 819                 // /* (non-Javadoc)
 820                 // * @see
 821                 // org.eclipse.jface.window.Window#getInitialLocation(org.eclipse.swt.graphics.Point)
 822                 // */
 823                 // protected Point getInitialLocation(Point initialSize) {
 824                 // Point initialLocation=
 825                 // DialogSettingsHelper.getInitialLocation(getDialogSettingsSectionName());
 826                 // if (initialLocation != null) {
 827                 // return initialLocation;
 828                 // }
 829                 // return super.getInitialLocation(initialSize);
 830                 // }
 831
 832                 // /* (non-Javadoc)
 833                 // * @see org.eclipse.jface.window.Window#getInitialSize()
 834                 // */
 835                 // protected Point getInitialSize() {
 836                 // Point size = super.getInitialSize();
 837                 // return
 838                 // DialogSettingsHelper.getInitialSize(getDialogSettingsSectionName(),
 839                 // size);
 840                 // }
 841
 842                 // /* (non-Javadoc)
 843                 // * @see org.eclipse.jface.window.Window#close()
 844                 // */
 845                 // public boolean close() {
 846                 // DialogSettingsHelper.persistShellGeometry(getShell(),
 847                 // getDialogSettingsSectionName());
 848                 // return super.close();
 849                 // }
 850         }
 851 }