net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/PHPeclipsePlugin.java

   1 /**********************************************************************
   2  Copyright (c) 2000, 2002 IBM Corp. and others.
   3  All rights reserved. This program and the accompanying materials
   4  are made available under the terms of the Common Public License v1.0
   5  which accompanies this distribution, and is available at
   6  http://www.eclipse.org/legal/cpl-v10.html
   7
   8  Contributors:
   9  IBM Corporation - Initial implementation
  10  Klaus Hartlage - www.eclipseproject.de
  11  **********************************************************************/
  12 package net.sourceforge.phpeclipse;
  13 import java.io.File;
  14 import java.util.ArrayList;
  15 import java.util.Collection;
  16 import java.util.HashMap;
  17 import java.util.HashSet;
  18 import java.util.Iterator;
  19 import java.util.List;
  20 import java.util.Set;
  21
  22 import net.sourceforge.phpdt.core.IBuffer;
  23 import net.sourceforge.phpdt.core.IBufferFactory;
  24 import net.sourceforge.phpdt.core.ICompilationUnit;
  25 import net.sourceforge.phpdt.core.IJavaElement;
  26 import net.sourceforge.phpdt.core.JavaCore;
  27 import net.sourceforge.phpdt.core.WorkingCopyOwner;
  28 import net.sourceforge.phpdt.externaltools.internal.model.ColorManager;
  29 import net.sourceforge.phpdt.externaltools.internal.model.ExternalToolsPlugin;
  30 import net.sourceforge.phpdt.externaltools.internal.model.VariableContextManager;
  31 import net.sourceforge.phpdt.internal.ui.JavaElementAdapterFactory;
  32 import net.sourceforge.phpdt.internal.ui.ResourceAdapterFactory;
  33 import net.sourceforge.phpdt.internal.ui.preferences.MembersOrderPreferenceCache;
  34 import net.sourceforge.phpdt.internal.ui.preferences.TemplatePreferencePage;
  35 import net.sourceforge.phpdt.internal.ui.text.java.hover.JavaEditorTextHoverDescriptor;
  36 import net.sourceforge.phpdt.internal.ui.viewsupport.ImageDescriptorRegistry;
  37 import net.sourceforge.phpdt.internal.ui.viewsupport.ProblemMarkerManager;
  38 import net.sourceforge.phpdt.ui.IContextMenuConstants;
  39 import net.sourceforge.phpdt.ui.IWorkingCopyManager;
  40 import net.sourceforge.phpdt.ui.PreferenceConstants;
  41 import net.sourceforge.phpdt.ui.text.JavaTextTools;
  42 import net.sourceforge.phpeclipse.builder.ExternalEditorInput;
  43 import net.sourceforge.phpeclipse.builder.ExternalStorageDocumentProvider;
  44 import net.sourceforge.phpeclipse.builder.FileStorage;
  45 import net.sourceforge.phpeclipse.builder.IdentifierIndexManager;
  46 import net.sourceforge.phpeclipse.phpeditor.CustomBufferFactory;
  47 import net.sourceforge.phpeclipse.phpeditor.DocumentAdapter;
  48 import net.sourceforge.phpeclipse.phpeditor.PHPDocumentProvider;
  49 import net.sourceforge.phpeclipse.phpeditor.PHPSyntaxRdr;
  50 import net.sourceforge.phpeclipse.phpeditor.WorkingCopyManager;
  51 import net.sourceforge.phpeclipse.phpeditor.util.PHPColorProvider;
  52
  53 import org.eclipse.core.boot.BootLoader;
  54 import org.eclipse.core.resources.IFile;
  55 import org.eclipse.core.resources.IProject;
  56 import org.eclipse.core.resources.IResource;
  57 import org.eclipse.core.resources.IWorkspace;
  58 import org.eclipse.core.resources.ResourcesPlugin;
  59 import org.eclipse.core.runtime.CoreException;
  60 import org.eclipse.core.runtime.IAdapterManager;
  61 import org.eclipse.core.runtime.IPath;
  62 import org.eclipse.core.runtime.IPluginDescriptor;
  63 import org.eclipse.core.runtime.IStatus;
  64 import org.eclipse.core.runtime.Path;
  65 import org.eclipse.core.runtime.Platform;
  66 import org.eclipse.core.runtime.Status;
  67 import net.sourceforge.phpdt.internal.ui.text.folding.JavaFoldingStructureProviderRegistry;
  68
  69 import net.sourceforge.phpdt.internal.ui.text.PreferencesAdapter;
  70 import org.eclipse.jface.action.GroupMarker;
  71 import org.eclipse.jface.action.IMenuManager;
  72 import org.eclipse.jface.action.Separator;
  73 import org.eclipse.jface.preference.IPreferenceStore;
  74 import org.eclipse.jface.preference.PreferenceConverter;
  75 import org.eclipse.jface.resource.JFaceResources;
  76 import org.eclipse.jface.text.BadLocationException;
  77 import org.eclipse.jface.text.IDocument;
  78 import org.eclipse.jface.util.IPropertyChangeListener;
  79 import org.eclipse.jface.util.PropertyChangeEvent;
  80 import org.eclipse.swt.widgets.Display;
  81 import org.eclipse.swt.widgets.Shell;
  82 import org.eclipse.ui.IEditorDescriptor;
  83 import org.eclipse.ui.IEditorInput;
  84 import org.eclipse.ui.IEditorPart;
  85 import org.eclipse.ui.IEditorRegistry;
  86 import org.eclipse.ui.IWorkbench;
  87 import org.eclipse.ui.IWorkbenchPage;
  88 import org.eclipse.ui.IWorkbenchWindow;
  89 import org.eclipse.ui.PlatformUI;
  90 import org.eclipse.ui.editors.text.EditorsUI;
  91 import org.eclipse.ui.ide.IDE;
  92 import org.eclipse.ui.plugin.AbstractUIPlugin;
  93 import org.eclipse.ui.texteditor.AbstractDecoratedTextEditorPreferenceConstants;
  94 import org.eclipse.ui.texteditor.ChainedPreferenceStore;
  95 import org.eclipse.ui.texteditor.IDocumentProvider;
  96 import org.eclipse.ui.texteditor.ITextEditor;
  97 import org.eclipse.ui.texteditor.MarkerAnnotationPreferences;
  98 import org.osgi.framework.BundleContext;
  99 /**
 100  * The main plugin class to be used in the desktop.
 101  */
 102 public class PHPeclipsePlugin extends AbstractUIPlugin
 103     implements
 104       IPreferenceConstants {
 105   /**
 106    * The id of the PHP plugin (value <code>"net.sourceforge.phpeclipse"</code>).
 107    */
 108   public static final String PLUGIN_ID = "net.sourceforge.phpeclipse"; //$NON-NLS-1$
 109   /**
 110    * id of builder - matches plugin.xml (concatenate pluginid.builderid)
 111    */
 112   public static final String BUILDER_PARSER_ID = PLUGIN_ID + ".parserbuilder";
 113   //public static final String BUILDER_INDEX_ID = PLUGIN_ID + ".indexbuilder";
 114   /** General debug flag */
 115   public static final boolean DEBUG = false;
 116   /**
 117    * The maximum number of allowed proposals by category
 118    */
 119   public final static int MAX_PROPOSALS = 200;
 120   private static ExternalToolsPlugin externalTools;
 121   /**
 122    * The Java virtual machine that we are running on.
 123    */
 124   private static int jvm;
 125   /** MRJ 2.0 */
 126   private static final int MRJ_2_0 = 0;
 127   /** MRJ 2.1 or later */
 128   private static final int MRJ_2_1 = 1;
 129   /** Java on Mac OS X 10.0 (MRJ 3.0) */
 130   private static final int MRJ_3_0 = 3;
 131   /** MRJ 3.1 */
 132   private static final int MRJ_3_1 = 4;
 133   /** JVM constant for any other platform */
 134   private static final int OTHER = -1;
 135   // public static final String PHP_RESOURCES_VIEW_ID = PLUGIN_ID +
 136   // ".resourcesview.ViewPHPResources"; //$NON-NLS-1$
 137   public static final String PHP_CODING_ACTION_SET_ID = PLUGIN_ID
 138       + ".ui.CodingActionSet"; //$NON-NLS-1$
 139   public final static String PHP_NATURE_ID = PLUGIN_ID + ".phpnature";
 140   public static final String PHPPARSER_ORIGINAL = "net.sourceforge.phpdt.internal.compiler.parser.Parser";
 141   public static final String PHPPARSER_NEW = "test.PHPParser";
 142   /** Change this if you want to switch PHP Parser. */
 143   public static final String PHPPARSER = PHPPARSER_ORIGINAL;
 144   //The shared instance.
 145   private static PHPeclipsePlugin plugin;
 146   /** Windows 9x */
 147   private static final int WINDOWS_9x = 6;
 148   /** Windows NT */
 149   private static final int WINDOWS_NT = 5;
 150   private ImageDescriptorRegistry fImageDescriptorRegistry;
 151   private HashMap fIndexManagerMap = new HashMap();
 152   private IWorkingCopyManager fWorkingCopyManager;
 153         private IBufferFactory fBufferFactory;
 154   private PHPDocumentProvider fCompilationUnitDocumentProvider;
 155   private JavaTextTools fJavaTextTools;
 156   private ProblemMarkerManager fProblemMarkerManager;
 157   private MembersOrderPreferenceCache fMembersOrderPreferenceCache;
 158   private IFile fLastEditorFile = null;
 159   private JavaEditorTextHoverDescriptor[] fJavaEditorTextHoverDescriptors;
 160
 161   private JavaElementAdapterFactory fJavaElementAdapterFactory;
 162 //      private MarkerAdapterFactory fMarkerAdapterFactory;
 163 //      private EditorInputAdapterFactory fEditorInputAdapterFactory;
 164         private ResourceAdapterFactory fResourceAdapterFactory;
 165 //      private LogicalPackageAdapterFactory fLogicalPackageAdapterFactory;
 166         private IPropertyChangeListener fFontPropertyChangeListener;
 167         /**
 168          * Property change listener on this plugin's preference store.
 169          *
 170          * @since 3.0
 171          */
 172         private IPropertyChangeListener fPropertyChangeListener;
 173
 174         /**
 175          * The combined preference store.
 176          * @since 3.0
 177          */
 178         private IPreferenceStore fCombinedPreferenceStore;
 179         /**
 180          * The extension point registry for the <code>org.eclipse.jdt.ui.javaFoldingStructureProvider</code>
 181          * extension point.
 182          *
 183          * @since 3.0
 184          */
 185         private JavaFoldingStructureProviderRegistry fFoldingStructureProviderRegistry;
 186   /**
 187    * The constructor.
 188    */
 189   public PHPeclipsePlugin(IPluginDescriptor descriptor) {
 190     super(descriptor);
 191     plugin = this;
 192     setJVM();
 193     externalTools = new ExternalToolsPlugin();
 194     //    try {
 195     //      resourceBundle =
 196     // ResourceBundle.getBundle("net.sourceforge.PHPeclipsePluginResources");
 197     //    } catch (MissingResourceException x) {
 198     //      resourceBundle = null;
 199     //    }
 200   }
 201   /**
 202    * Returns all Java editor text hovers contributed to the workbench.
 203    *
 204    * @return an array of JavaEditorTextHoverDescriptor
 205    * @since 2.1
 206    */
 207   public JavaEditorTextHoverDescriptor[] getJavaEditorTextHoverDescriptors() {
 208     if (fJavaEditorTextHoverDescriptors == null)
 209       fJavaEditorTextHoverDescriptors = JavaEditorTextHoverDescriptor
 210           .getContributedHovers();
 211     return fJavaEditorTextHoverDescriptors;
 212   }
 213   /**
 214    * Resets the Java editor text hovers contributed to the workbench.
 215    * <p>
 216    * This will force a rebuild of the descriptors the next time a client asks
 217    * for them.
 218    * </p>
 219    *
 220    * @return an array of JavaEditorTextHoverDescriptor
 221    * @since 2.1
 222    */
 223   public void resetJavaEditorTextHoverDescriptors() {
 224     fJavaEditorTextHoverDescriptors = null;
 225   }
 226   /**
 227    * Creates the PHP plugin standard groups in a context menu.
 228    */
 229   public static void createStandardGroups(IMenuManager menu) {
 230     if (!menu.isEmpty())
 231       return;
 232     menu.add(new Separator(IContextMenuConstants.GROUP_NEW));
 233     menu.add(new GroupMarker(IContextMenuConstants.GROUP_GOTO));
 234     menu.add(new Separator(IContextMenuConstants.GROUP_OPEN));
 235     menu.add(new GroupMarker(IContextMenuConstants.GROUP_SHOW));
 236     menu.add(new Separator(IContextMenuConstants.GROUP_REORGANIZE));
 237     menu.add(new Separator(IContextMenuConstants.GROUP_GENERATE));
 238     menu.add(new Separator(IContextMenuConstants.GROUP_SEARCH));
 239     menu.add(new Separator(IContextMenuConstants.GROUP_BUILD));
 240     menu.add(new Separator(IContextMenuConstants.GROUP_ADDITIONS));
 241     menu.add(new Separator(IContextMenuConstants.GROUP_VIEWER_SETUP));
 242     menu.add(new Separator(IContextMenuConstants.GROUP_PROPERTIES));
 243   }
 244   public static IWorkbenchPage getActivePage() {
 245     return getDefault().internalGetActivePage();
 246   }
 247   public static Shell getActiveWorkbenchShell() {
 248     return getActiveWorkbenchWindow().getShell();
 249   }
 250   /**
 251    * Returns an array of all editors that have an unsaved content. If the
 252    * identical content is presented in more than one editor, only one of those
 253    * editor parts is part of the result.
 254    *
 255    * @return an array of all dirty editor parts.
 256    */
 257   public static IEditorPart[] getDirtyEditors() {
 258     Set inputs = new HashSet();
 259     List result = new ArrayList(0);
 260     IWorkbench workbench = getDefault().getWorkbench();
 261     IWorkbenchWindow[] windows = workbench.getWorkbenchWindows();
 262     for (int i = 0; i < windows.length; i++) {
 263       IWorkbenchPage[] pages = windows[i].getPages();
 264       for (int x = 0; x < pages.length; x++) {
 265         IEditorPart[] editors = pages[x].getDirtyEditors();
 266         for (int z = 0; z < editors.length; z++) {
 267           IEditorPart ep = editors[z];
 268           IEditorInput input = ep.getEditorInput();
 269           if (!inputs.contains(input)) {
 270             inputs.add(input);
 271             result.add(ep);
 272           }
 273         }
 274       }
 275     }
 276     return (IEditorPart[]) result.toArray(new IEditorPart[result.size()]);
 277   }
 278   public static IWorkbenchWindow getActiveWorkbenchWindow() {
 279     return getDefault().getWorkbench().getActiveWorkbenchWindow();
 280   }
 281   /**
 282    * Returns the shared instance.
 283    */
 284   public static PHPeclipsePlugin getDefault() {
 285     return plugin;
 286   }
 287   public static ImageDescriptorRegistry getImageDescriptorRegistry() {
 288     return getDefault().internalGetImageDescriptorRegistry();
 289   }
 290   static IPath getInstallLocation() {
 291     return new Path(getDefault().getDescriptor().getInstallURL().getFile());
 292   }
 293   public static int getJVM() {
 294     return jvm;
 295   }
 296   public static String getPluginId() {
 297     return getDefault().getDescriptor().getUniqueIdentifier();
 298   }
 299   /**
 300    * Returns the standard display to be used. The method first checks, if the
 301    * thread calling this method has an associated display. If so, this display
 302    * is returned. Otherwise the method returns the default display.
 303    */
 304   public static Display getStandardDisplay() {
 305     Display display = Display.getCurrent();
 306     if (display == null) {
 307       display = Display.getDefault();
 308     }
 309     return display;
 310   }
 311   //  public static ExternalToolsPlugin getExternalTools() {
 312   //    return externalTools;
 313   //  }
 314   /**
 315    * Returns the workspace instance.
 316    */
 317   public static IWorkspace getWorkspace() {
 318     return ResourcesPlugin.getWorkspace();
 319   }
 320   public static boolean isDebug() {
 321     return getDefault().isDebugging();
 322   }
 323   //  public static void logErrorMessage(String message) {
 324   //    log(new Status(IStatus.ERROR, getPluginId(),
 325   // JavaStatusConstants.INTERNAL_ERROR, message, null));
 326   //  }
 327   //
 328   //  public static void logErrorStatus(String message, IStatus status) {
 329   //    if (status == null) {
 330   //      logErrorMessage(message);
 331   //      return;
 332   //    }
 333   //    MultiStatus multi= new MultiStatus(getPluginId(),
 334   // JavaStatusConstants.INTERNAL_ERROR, message, null);
 335   //    multi.add(status);
 336   //    log(multi);
 337   //  }
 338   //
 339   //  public static void log(Throwable e) {
 340   //    log(new Status(IStatus.ERROR, getPluginId(),
 341   // JavaStatusConstants.INTERNAL_ERROR,
 342   // JavaUIMessages.getString("JavaPlugin.internal_error"), e)); //$NON-NLS-1$
 343   //  }
 344   public static void log(int severity, String message) {
 345     Status status = new Status(severity, PLUGIN_ID, IStatus.OK, message, null);
 346     log(status);
 347   }
 348   public static void log(IStatus status) {
 349     getDefault().getLog().log(status);
 350   }
 351   public static void log(Throwable e) {
 352     log(new Status(IStatus.ERROR, PLUGIN_ID, IStatus.ERROR,
 353         "PHPeclipsePlugin.internalErrorOccurred", e)); //$NON-NLS-1$
 354   }
 355   private static void setJVM() {
 356     String osName = System.getProperty("os.name");
 357     if (osName.startsWith("Mac OS")) {
 358       String mrjVersion = System.getProperty("mrj.version");
 359       String majorMRJVersion = mrjVersion.substring(0, 3);
 360       jvm = OTHER;
 361       try {
 362         double version = Double.valueOf(majorMRJVersion).doubleValue();
 363         if (version == 2) {
 364           jvm = MRJ_2_0;
 365         } else if (version >= 2.1 && version < 3) {
 366           jvm = MRJ_2_1;
 367         } else if (version == 3.0) {
 368           jvm = MRJ_3_0;
 369         } else if (version >= 3.1) {
 370           jvm = MRJ_3_1;
 371         }
 372       } catch (NumberFormatException nfe) {
 373       }
 374     } else if (osName.startsWith("Windows")) {
 375       if (osName.indexOf("9") != -1) {
 376         jvm = WINDOWS_9x;
 377       } else {
 378         jvm = WINDOWS_NT;
 379       }
 380     }
 381   }
 382   // TODO: refactor this into a better method name !
 383   public synchronized PHPDocumentProvider getCompilationUnitDocumentProvider() {
 384     if (fCompilationUnitDocumentProvider == null)
 385       fCompilationUnitDocumentProvider = new PHPDocumentProvider();
 386     return fCompilationUnitDocumentProvider;
 387   }
 388
 389   /**
 390    * Get the identifier index manager for the given project
 391    *
 392    * @param iProject
 393    *            the current project
 394    * @return
 395    */
 396   public IdentifierIndexManager getIndexManager(IProject iProject) {
 397     String indexFilename = iProject.getLocation() + File.separator
 398         + "project.index";
 399     IdentifierIndexManager indexManager = (IdentifierIndexManager) fIndexManagerMap
 400         .get(indexFilename);
 401     if (indexManager == null) {
 402       indexManager = new IdentifierIndexManager(indexFilename);
 403       fIndexManagerMap.put(indexFilename, indexManager);
 404     }
 405     return indexManager;
 406   }
 407   public synchronized IWorkingCopyManager getWorkingCopyManager() {
 408     if (fWorkingCopyManager == null) {
 409       PHPDocumentProvider provider = getCompilationUnitDocumentProvider();
 410       fWorkingCopyManager = new WorkingCopyManager(provider);
 411     }
 412     return fWorkingCopyManager;
 413   }
 414   public synchronized MembersOrderPreferenceCache getMemberOrderPreferenceCache() {
 415     if (fMembersOrderPreferenceCache == null)
 416       fMembersOrderPreferenceCache = new MembersOrderPreferenceCache();
 417     return fMembersOrderPreferenceCache;
 418   }
 419   public synchronized ProblemMarkerManager getProblemMarkerManager() {
 420     if (fProblemMarkerManager == null)
 421       fProblemMarkerManager = new ProblemMarkerManager();
 422     return fProblemMarkerManager;
 423   }
 424
 425   public synchronized JavaTextTools getJavaTextTools() {
 426     if (fJavaTextTools == null)
 427       fJavaTextTools = new JavaTextTools(getPreferenceStore());
 428     return fJavaTextTools;
 429   }
 430   public IFile getLastEditorFile() {
 431     return fLastEditorFile;
 432   }
 433   /**
 434    * Returns the string from the plugin's resource bundle, or 'key' if not
 435    * found.
 436    */
 437   //  public static String getResourceString(String key) {
 438   //    ResourceBundle bundle = PHPeclipsePlugin.getDefault().getResourceBundle();
 439   //    try {
 440   //      return bundle.getString(key);
 441   //    } catch (MissingResourceException e) {
 442   //      return key;
 443   //    }
 444   //  }
 445   /**
 446    * Returns the plugin's resource bundle,
 447    */
 448   //  public ResourceBundle getResourceBundle() {
 449   //    return resourceBundle;
 450   //  }
 451   protected void initializeDefaultPreferences(IPreferenceStore store) {
 452     // windows preferences:
 453     store.setDefault(LOCALHOST_PREF, "http://localhost");
 454 //    store.setDefault(SHOW_EXTERNAL_PREVIEW_PREF, "true");
 455     store.setDefault(USE_EXTERNAL_BROWSER_PREF, "false");
 456     store.setDefault(SHOW_OUTPUT_IN_CONSOLE, "true");
 457     store.setDefault(PHP_OBFUSCATOR_DEFAULT, "c:\\temp");
 458     store.setDefault(PHP_BOOKMARK_DEFAULT, "");
 459
 460     store.setDefault(PHP_AUTO_PREVIEW_DEFAULT, "true");
 461     store.setDefault(PHP_BRING_TO_TOP_PREVIEW_DEFAULT, "true");
 462
 463     String windowsSystem = BootLoader.getWS();
 464     if (jvm == WINDOWS_9x) {
 465       store.setDefault(EXTERNAL_BROWSER_PREF,
 466           "command.com /c start iexplore {0}");
 467     } else if (windowsSystem.equals(BootLoader.WS_WIN32)) {
 468       store.setDefault(EXTERNAL_BROWSER_PREF,
 469           "rundll32 url.dll,FileProtocolHandler {0}");
 470     } else if (windowsSystem.equals(BootLoader.WS_CARBON)) {
 471       // TODO How do we start Safari on Mac OS X ?
 472       store.setDefault(EXTERNAL_BROWSER_PREF, "netscape {0}");
 473     } else {
 474       store.setDefault(PHP_OBFUSCATOR_DEFAULT, "/tmp");
 475       store.setDefault(EXTERNAL_BROWSER_PREF, "netscape {0}");
 476     }
 477     store.setDefault(DOCUMENTROOT_PREF, getWorkspace().getRoot().getLocation()
 478         .toString());
 479     //  if ((jvm == WINDOWS_9x) || (jvm == WINDOWS_NT)) {
 480     //
 481     if (windowsSystem.equals(BootLoader.WS_WIN32)) {
 482       store.setDefault(PHP_RUN_PREF, "c:\\apache\\php\\php.exe");
 483       store.setDefault(EXTERNAL_PARSER_PREF, "c:\\apache\\php\\php -l -f {0}");
 484       store.setDefault(MYSQL_RUN_PREF, "c:\\apache\\mysql\\bin\\mysqld-nt.exe");
 485       store.setDefault(APACHE_RUN_PREF, "c:\\apache\\apache.exe");
 486     } else {
 487       store.setDefault(PHP_RUN_PREF, "/apache/php/php");
 488       store.setDefault(EXTERNAL_PARSER_PREF, "/apache/php/php -l -f {0}");
 489       store.setDefault(MYSQL_RUN_PREF, "/apache/mysql/bin/mysqld");
 490       store.setDefault(APACHE_RUN_PREF, "/apache/apache");
 491     }
 492     store.setDefault(MYSQL_PREF, "--standalone");
 493     store.setDefault(APACHE_START_PREF, "-c \"DocumentRoot \"{0}\"\"");
 494     store.setDefault(APACHE_STOP_PREF, "-k shutdown");
 495     store.setDefault(APACHE_RESTART_PREF, "-k restart");
 496     store.setDefault(MYSQL_START_BACKGROUND, "true");
 497     store.setDefault(APACHE_START_BACKGROUND, "true");
 498     store.setDefault(APACHE_STOP_BACKGROUND, "true");
 499     store.setDefault(APACHE_RESTART_BACKGROUND, "true");
 500     store.setDefault(PHP_PARSER_DEFAULT, PHP_EXTERNAL_PARSER);
 501     store.setDefault(PHP_INTERNAL_PARSER, "false");
 502     store.setDefault(PHP_EXTERNAL_PARSER, "true");
 503     //    store.setDefault(PHP_PARSE_ON_SAVE, "true");
 504     // show line numbers:
 505     //   store.setDefault(LINE_NUMBER_RULER, "false");
 506     //    store.setDefault(FORMATTER_TAB_SIZE, "4");
 507     // php syntax highlighting
 508     store.setDefault(PHP_USERDEF_XMLFILE, "");
 509     //assume there is none chooA
 510     PreferenceConverter.setDefault(store, PHP_MULTILINE_COMMENT,
 511         PHPColorProvider.MULTI_LINE_COMMENT);
 512     PreferenceConverter.setDefault(store, PHP_SINGLELINE_COMMENT,
 513         PHPColorProvider.SINGLE_LINE_COMMENT);
 514     PreferenceConverter.setDefault(store, PHP_TAG, PHPColorProvider.TAG);
 515     PreferenceConverter
 516         .setDefault(store, PHP_KEYWORD, PHPColorProvider.KEYWORD);
 517     PreferenceConverter.setDefault(store, PHP_VARIABLE,
 518         PHPColorProvider.VARIABLE);
 519     PreferenceConverter.setDefault(store, PHP_FUNCTIONNAME,
 520         PHPColorProvider.FUNCTION_NAME);
 521     PreferenceConverter.setDefault(store, PHP_CONSTANT,
 522         PHPColorProvider.CONSTANT);
 523     PreferenceConverter.setDefault(store, PHP_TYPE, PHPColorProvider.TYPE);
 524     PreferenceConverter.setDefault(store, PHP_STRING, PHPColorProvider.STRING);
 525     PreferenceConverter
 526         .setDefault(store, PHP_DEFAULT, PHPColorProvider.DEFAULT);
 527     PreferenceConverter.setDefault(store, PHPDOC_KEYWORD,
 528         PHPColorProvider.PHPDOC_KEYWORD);
 529     PreferenceConverter.setDefault(store, PHPDOC_TAG,
 530         PHPColorProvider.PHPDOC_TAG);
 531     PreferenceConverter.setDefault(store, PHPDOC_LINK,
 532         PHPColorProvider.PHPDOC_LINK);
 533     PreferenceConverter.setDefault(store, PHPDOC_DEFAULT,
 534         PHPColorProvider.PHPDOC_DEFAULT);
 535     //    PreferenceConverter.setDefault(
 536     //      store,
 537     //      PHP_EDITOR_BACKGROUND,
 538     //      PHPColorProvider.BACKGROUND);
 539     //    PreferenceConverter.setDefault(
 540     //      store,
 541     //      LINKED_POSITION_COLOR,
 542     //      PHPColorProvider.LINKED_POSITION_COLOR);
 543     //    PreferenceConverter.setDefault(
 544     //      store,
 545     //      LINE_NUMBER_COLOR,
 546     //      PHPColorProvider.LINE_NUMBER_COLOR);
 547     //    // set default PHPDoc colors:
 548     //    PreferenceConverter.setDefault(
 549     //      store,
 550     //      PHPDOC_KEYWORD,
 551     //      PHPColorProvider.PHPDOC_KEYWORD);
 552     //    PreferenceConverter.setDefault(
 553     //      store,
 554     //      PHPDOC_LINK,
 555     //      PHPColorProvider.PHPDOC_LINK);
 556     //    PreferenceConverter.setDefault(
 557     //      store,
 558     //      PHPDOC_DEFAULT,
 559     //      PHPColorProvider.PHPDOC_DEFAULT);
 560     //    PreferenceConverter.setDefault(
 561     //      store,
 562     //      PHPDOC_TAG,
 563     //      PHPColorProvider.PHPDOC_TAG);
 564     //    store.setDefault(PREFERENCE_COLOR_BACKGROUND_SYSTEM_DEFAULT, "true");
 565     //    PreferenceConverter.setDefault(
 566     //      store,
 567     //      PREFERENCE_COLOR_BACKGROUND,
 568     //      PHPColorProvider.BACKGROUND_COLOR);
 569     //language stuff
 570     //    store.setDefault(RESOURCE_BUNDLE, LANGUAGE_DEFAULT);
 571     //    store.setDefault(RESOURCE_BUNDLE_EN_GB, "true");
 572     //    store.setDefault(RESOURCE_BUNDLE_DE, "false");
 573     //    store.setDefault(RESOURCE_BUNDLE_FR, "false");
 574     //    store.setDefault(RESOURCE_BUNDLE_ES, "false");
 575     TemplatePreferencePage.initDefaults(store);
 576     //this will initialize the static fields in the syntaxrdr class
 577     new PHPSyntaxRdr();
 578     JavaCore.initializeDefaultPluginPreferences();
 579     PreferenceConstants.initializeDefaultValues(store);
 580     externalTools.initializeDefaultPreferences(store);
 581     MarkerAnnotationPreferences.initializeDefaultValues(store);
 582   }
 583   private IWorkbenchPage internalGetActivePage() {
 584     IWorkbenchWindow window = getWorkbench().getActiveWorkbenchWindow();
 585     if (window != null)
 586       return window.getActivePage();
 587     return null;
 588   }
 589   private ImageDescriptorRegistry internalGetImageDescriptorRegistry() {
 590     if (fImageDescriptorRegistry == null)
 591       fImageDescriptorRegistry = new ImageDescriptorRegistry();
 592     return fImageDescriptorRegistry;
 593   }
 594   /**
 595    * Open a file in the Workbench that may or may not exist in the workspace.
 596    * Must be run on the UI thread.
 597    *
 598    * @param filename
 599    * @throws CoreException
 600    */
 601   public ITextEditor openFileInTextEditor(String filename) throws CoreException {
 602     //  reject directories
 603     if (new File(filename).isDirectory())
 604       return null;
 605     IWorkbench workbench = PlatformUI.getWorkbench();
 606     IWorkbenchWindow window = workbench.getWorkbenchWindows()[0];
 607     IWorkbenchPage page = window.getActivePage();
 608     IPath path = new Path(filename);
 609     // If the file exists in the workspace, open it
 610     IFile file = getWorkspace().getRoot().getFileForLocation(path);
 611     IEditorPart editor;
 612     ITextEditor textEditor;
 613     if (file != null && file.exists()) {
 614       editor = IDE.openEditor(page, file, true);
 615       textEditor = (ITextEditor) editor.getAdapter(ITextEditor.class);
 616     } else {
 617       // Otherwise open the stream directly
 618       if (page == null)
 619         return null;
 620       FileStorage storage = new FileStorage(path);
 621       IEditorRegistry registry = getWorkbench().getEditorRegistry();
 622       IEditorDescriptor desc = registry.getDefaultEditor(filename);
 623       if (desc == null) {
 624         desc = registry.findEditor(IEditorRegistry.SYSTEM_EXTERNAL_EDITOR_ID);
 625      //   desc = registry.getDefaultEditor();
 626       }
 627       IEditorInput input = new ExternalEditorInput(storage);
 628       editor = page.openEditor(input, desc.getId());
 629       textEditor = (ITextEditor) editor.getAdapter(ITextEditor.class);
 630       // If the storage provider is not ours, we can't guarantee read/write.
 631       if (textEditor != null) {
 632         IDocumentProvider documentProvider = textEditor.getDocumentProvider();
 633         if (!(documentProvider instanceof ExternalStorageDocumentProvider)) {
 634           storage.setReadOnly();
 635         }
 636       }
 637     }
 638     return textEditor;
 639   }
 640   /**
 641    * Open a file in the Workbench that may or may not exist in the workspace.
 642    * Must be run on the UI thread.
 643    *
 644    * @param filename
 645    * @param line
 646    * @throws CoreException
 647    */
 648   public void openFileAndGotoLine(String filename, int line)
 649       throws CoreException {
 650     ITextEditor textEditor = openFileInTextEditor(filename);
 651     if (textEditor != null) {
 652       // If a line number was given, go to it
 653       if (line > 0) {
 654         try {
 655           line--; // document is 0 based
 656           IDocument document = textEditor.getDocumentProvider().getDocument(
 657               textEditor.getEditorInput());
 658           textEditor.selectAndReveal(document.getLineOffset(line), document
 659               .getLineLength(line));
 660         } catch (BadLocationException e) {
 661           // invalid text position -> do nothing
 662         }
 663       }
 664     }
 665   }
 666   /**
 667    * Open a file in the Workbench that may or may not exist in the workspace.
 668    * Must be run on the UI thread.
 669    *
 670    * @param filename
 671    * @param offset
 672    * @throws CoreException
 673    */
 674   public void openFileAndGotoOffset(String filename, int offset, int length)
 675       throws CoreException {
 676     ITextEditor textEditor = openFileInTextEditor(filename);
 677     if (textEditor != null) {
 678       // If a line number was given, go to it
 679       if (offset >= 0) {
 680         IDocument document = textEditor.getDocumentProvider().getDocument(
 681             textEditor.getEditorInput());
 682         textEditor.selectAndReveal(offset, length);
 683       }
 684     }
 685   }
 686   public void openFileAndFindString(String filename, String findString)
 687       throws CoreException {
 688     ITextEditor textEditor = openFileInTextEditor(filename);
 689     if (textEditor != null) {
 690       //                If a string was given, go to it
 691       if (findString != null) {
 692         try {
 693           IDocument document = textEditor.getDocumentProvider().getDocument(
 694               textEditor.getEditorInput());
 695           int offset = document.search(0, findString, true, false, true);
 696           textEditor.selectAndReveal(offset, findString.length());
 697         } catch (BadLocationException e) {
 698           // invalid text position -> do nothing
 699         }
 700       }
 701     }
 702   }
 703   public void setLastEditorFile(IFile textEditor) {
 704     this.fLastEditorFile = textEditor;
 705   }
 706         /*
 707          * @see org.eclipse.core.runtime.Plugin#stop
 708          */
 709         public void stop(BundleContext context) throws Exception {
 710                 try {
 711                         JavaCore.stop(this, context);
 712
 713                         ColorManager.getDefault().dispose();
 714                     // save the information from the php index files if necessary
 715                     Collection collection = fIndexManagerMap.values();
 716                     Iterator iterator = collection.iterator();
 717                     IdentifierIndexManager indexManager = null;
 718                     while (iterator.hasNext()) {
 719                       indexManager = (IdentifierIndexManager) iterator.next();
 720                       indexManager.writeFile();
 721                     }
 722                     if (fImageDescriptorRegistry != null)
 723                       fImageDescriptorRegistry.dispose();
 724
 725 //                      AllTypesCache.terminate();
 726
 727                         if (fImageDescriptorRegistry != null)
 728                                 fImageDescriptorRegistry.dispose();
 729
 730                         unregisterAdapters();
 731
 732 //                      if (fASTProvider != null) {
 733 //                              fASTProvider.dispose();
 734 //                              fASTProvider= null;
 735 //                      }
 736
 737                         if (fWorkingCopyManager != null) {
 738                                 fWorkingCopyManager.shutdown();
 739                                 fWorkingCopyManager= null;
 740                         }
 741
 742                         if (fCompilationUnitDocumentProvider != null) {
 743                                 fCompilationUnitDocumentProvider.shutdown();
 744                                 fCompilationUnitDocumentProvider= null;
 745                         }
 746
 747                         if (fJavaTextTools != null) {
 748                                 fJavaTextTools.dispose();
 749                                 fJavaTextTools= null;
 750                         }
 751 //                      JavaDocLocations.shutdownJavadocLocations();
 752
 753                         uninstallPreferenceStoreBackwardsCompatibility();
 754
 755 //                      RefactoringCore.getUndoManager().shutdown();
 756                 } finally {
 757                         super.stop(context);
 758                 }
 759         }
 760   /**
 761    * @see org.eclipse.ui.plugin.AbstractUIPlugin#shutdown()
 762    */
 763 //  public void shutdown() throws CoreException {
 764 //    // moved down (see below):
 765 //    //    super.shutdown();
 766 //    //  externalTools.shutDown();
 767 //    ColorManager.getDefault().dispose();
 768 //    // save the information from the php index files if necessary
 769 //    Collection collection = fIndexManagerMap.values();
 770 //    Iterator iterator = collection.iterator();
 771 //    IdentifierIndexManager indexManager = null;
 772 //    while (iterator.hasNext()) {
 773 //      indexManager = (IdentifierIndexManager) iterator.next();
 774 //      indexManager.writeFile();
 775 //    }
 776 //    if (fImageDescriptorRegistry != null)
 777 //      fImageDescriptorRegistry.dispose();
 778 //    //                                unregisterAdapters();
 779 //    super.shutdown();
 780 //    if (fWorkingCopyManager != null) {
 781 //      fWorkingCopyManager.shutdown();
 782 //      fWorkingCopyManager = null;
 783 //    }
 784 //    if (fCompilationUnitDocumentProvider != null) {
 785 //      fCompilationUnitDocumentProvider.shutdown();
 786 //      fCompilationUnitDocumentProvider = null;
 787 //    }
 788 //    if (fJavaTextTools != null) {
 789 //      fJavaTextTools.dispose();
 790 //      fJavaTextTools = null;
 791 //    }
 792 //    //                                JavaDocLocations.shutdownJavadocLocations();
 793 //    //
 794 //    //                                JFaceResources.getFontRegistry().removeListener(fFontPropertyChangeListener);
 795 //    // begin JavaCore#shutdown()
 796 //    //savePluginPreferences();
 797 //    savePluginPreferences();
 798 //    IWorkspace workspace = ResourcesPlugin.getWorkspace();
 799 //      workspace.removeResourceChangeListener(JavaModelManager.getJavaModelManager().deltaState);
 800 //      workspace.removeSaveParticipant(this);
 801 //      ((JavaModelManager) JavaModelManager.getJavaModelManager()).shutdown();
 802 //    //         end JavaCore#shutdown()
 803 //  }
 804         /**
 805          * Installs backwards compatibility for the preference store.
 806          */
 807         private void installPreferenceStoreBackwardsCompatibility() {
 808
 809                 /*
 810                  * Installs backwards compatibility: propagate the Java editor font from a
 811                  * pre-2.1 plug-in to the Platform UI's preference store to preserve
 812                  * the Java editor font from a pre-2.1 workspace. This is done only
 813                  * once.
 814                  */
 815                 String fontPropagatedKey= "fontPropagated"; //$NON-NLS-1$
 816                 if (getPreferenceStore().contains(JFaceResources.TEXT_FONT) && !getPreferenceStore().isDefault(JFaceResources.TEXT_FONT)) {
 817                         if (!getPreferenceStore().getBoolean(fontPropagatedKey))
 818                                 PreferenceConverter.setValue(PlatformUI.getWorkbench().getPreferenceStore(), PreferenceConstants.EDITOR_TEXT_FONT, PreferenceConverter.getFontDataArray(getPreferenceStore(), JFaceResources.TEXT_FONT));
 819                 }
 820                 getPreferenceStore().setValue(fontPropagatedKey, true);
 821
 822                 /*
 823                  * Backwards compatibility: set the Java editor font in this plug-in's
 824                  * preference store to let older versions access it. Since 2.1 the
 825                  * Java editor font is managed by the workbench font preference page.
 826                  */
 827                 PreferenceConverter.putValue(getPreferenceStore(), JFaceResources.TEXT_FONT, JFaceResources.getFontRegistry().getFontData(PreferenceConstants.EDITOR_TEXT_FONT));
 828
 829                 fFontPropertyChangeListener= new IPropertyChangeListener() {
 830                         public void propertyChange(PropertyChangeEvent event) {
 831                                 if (PreferenceConstants.EDITOR_TEXT_FONT.equals(event.getProperty()))
 832                                         PreferenceConverter.putValue(getPreferenceStore(), JFaceResources.TEXT_FONT, JFaceResources.getFontRegistry().getFontData(PreferenceConstants.EDITOR_TEXT_FONT));
 833                         }
 834                 };
 835                 JFaceResources.getFontRegistry().addListener(fFontPropertyChangeListener);
 836
 837                 /*
 838                  * Backwards compatibility: propagate the Java editor tab width from a
 839                  * pre-3.0 plug-in to the new preference key. This is done only once.
 840                  */
 841                 final String oldTabWidthKey= PreferenceConstants.EDITOR_TAB_WIDTH;
 842                 final String newTabWidthKey= AbstractDecoratedTextEditorPreferenceConstants.EDITOR_TAB_WIDTH;
 843                 String tabWidthPropagatedKey= "tabWidthPropagated"; //$NON-NLS-1$
 844                 if (getPreferenceStore().contains(oldTabWidthKey) && !getPreferenceStore().isDefault(oldTabWidthKey)) {
 845                         if (!getPreferenceStore().getBoolean(tabWidthPropagatedKey))
 846                                 getPreferenceStore().setValue(newTabWidthKey, getPreferenceStore().getInt(oldTabWidthKey));
 847                 }
 848                 getPreferenceStore().setValue(tabWidthPropagatedKey, true);
 849
 850                 /*
 851                  * Backwards compatibility: set the Java editor tab width in this plug-in's
 852                  * preference store with the old key to let older versions access it.
 853                  * Since 3.0 the tab width is managed by the extended texteditor and
 854                  * uses a new key.
 855                  */
 856                 getPreferenceStore().putValue(oldTabWidthKey, getPreferenceStore().getString(newTabWidthKey));
 857
 858                 fPropertyChangeListener= new IPropertyChangeListener() {
 859                         public void propertyChange(PropertyChangeEvent event) {
 860                                 if (newTabWidthKey.equals(event.getProperty()))
 861                                         getPreferenceStore().putValue(oldTabWidthKey, getPreferenceStore().getString(newTabWidthKey));
 862                         }
 863                 };
 864                 getPreferenceStore().addPropertyChangeListener(fPropertyChangeListener);
 865
 866                 /*
 867                  * Backward compatibility for the refactoring preference key.
 868                  */
 869 //              getPreferenceStore().setValue(
 870 //                      PreferenceConstants.REFACTOR_ERROR_PAGE_SEVERITY_THRESHOLD,
 871 //                      RefactoringCore.getConditionCheckingFailedSeverity());
 872         }
 873
 874         /**
 875          * Uninstalls backwards compatibility for the preference store.
 876          */
 877         private void uninstallPreferenceStoreBackwardsCompatibility() {
 878                 JFaceResources.getFontRegistry().removeListener(fFontPropertyChangeListener);
 879                 getPreferenceStore().removePropertyChangeListener(fPropertyChangeListener);
 880         }
 881   /* (non - Javadoc)
 882          * Method declared in Plugin
 883          */
 884         public void start(BundleContext context) throws Exception {
 885                 super.start(context);
 886
 887                 JavaCore.start(this, context);
 888
 889                 registerAdapters();
 890
 891                  //  externalTools.startUp();
 892             getStandardDisplay().asyncExec(new Runnable() {
 893               public void run() {
 894                 //initialize the variable context manager
 895                 VariableContextManager.getDefault();
 896               }
 897             });
 898
 899 //              if (USE_WORKING_COPY_OWNERS) {
 900                         WorkingCopyOwner.setPrimaryBufferProvider(new WorkingCopyOwner() {
 901                                 public IBuffer createBuffer(ICompilationUnit workingCopy) {
 902                                         ICompilationUnit original= workingCopy.getPrimary();
 903                                         IResource resource= original.getResource();
 904                                         if (resource instanceof IFile)
 905                                                 return new DocumentAdapter(workingCopy, (IFile) resource);
 906                                         return DocumentAdapter.NULL;
 907                                 }
 908                         });
 909 //              }
 910
 911                 installPreferenceStoreBackwardsCompatibility();
 912
 913 //              AllTypesCache.initialize();
 914
 915                 // Initialize AST provider
 916 //              getASTProvider();
 917         }
 918 //  public void startup() throws CoreException {
 919 //    super.startup();
 920 //    // begin JavaCore.startup();
 921 //    JavaModelManager manager = JavaModelManager.getJavaModelManager();
 922 //    try {
 923 //      manager.configurePluginDebugOptions();
 924 //      // request state folder creation (workaround 19885)
 925 //      //              JavaCore.getPlugin().getStateLocation();
 926 //      getStateLocation();
 927 //      // retrieve variable values
 928 //      //              JavaCore.getPlugin().getPluginPreferences().addPropertyChangeListener(new
 929 //      // JavaModelManager.PluginPreferencesListener());
 930 //      getPluginPreferences().addPropertyChangeListener(
 931 //          new JavaModelManager.PluginPreferencesListener());
 932 //      //      TODO khartlage temp-del
 933 //      //              manager.loadVariablesAndContainers();
 934 //      final IWorkspace workspace = ResourcesPlugin.getWorkspace();
 935 //              workspace.addResourceChangeListener(
 936 //                      manager.deltaState,
 937 //                      IResourceChangeEvent.PRE_BUILD
 938 //                              | IResourceChangeEvent.POST_BUILD
 939 //                              | IResourceChangeEvent.POST_CHANGE
 940 //                              | IResourceChangeEvent.PRE_DELETE
 941 //                              | IResourceChangeEvent.PRE_CLOSE);
 942 //      //              startIndexing();
 943 //      workspace.addSaveParticipant(PHPeclipsePlugin.getDefault(), manager);
 944 //    } catch (CoreException e) {
 945 //    } catch (RuntimeException e) {
 946 //      manager.shutdown();
 947 //      throw e;
 948 //    }
 949 //    //         end JavaCore.startup();
 950 //    IAdapterManager platformManager = Platform.getAdapterManager();
 951 //    platformManager.registerAdapters(new PHPElementAdapterFactory(),
 952 //        PHPElement.class);
 953 //    platformManager.registerAdapters(new ResourceAdapterFactory(),
 954 //        IResource.class);
 955 //    //  externalTools.startUp();
 956 //    getStandardDisplay().asyncExec(new Runnable() {
 957 //      public void run() {
 958 //        //initialize the variable context manager
 959 //        VariableContextManager.getDefault();
 960 //      }
 961 //    });
 962 //  }
 963
 964
 965         private void registerAdapters() {
 966                 fJavaElementAdapterFactory= new JavaElementAdapterFactory();
 967 //              fMarkerAdapterFactory= new MarkerAdapterFactory();
 968 //              fEditorInputAdapterFactory= new EditorInputAdapterFactory();
 969                 fResourceAdapterFactory= new ResourceAdapterFactory();
 970 //              fLogicalPackageAdapterFactory= new LogicalPackageAdapterFactory();
 971
 972                 IAdapterManager manager= Platform.getAdapterManager();
 973                 manager.registerAdapters(fJavaElementAdapterFactory, IJavaElement.class);
 974 //              manager.registerAdapters(fMarkerAdapterFactory, IMarker.class);
 975 //              manager.registerAdapters(fEditorInputAdapterFactory, IEditorInput.class);
 976                 manager.registerAdapters(fResourceAdapterFactory, IResource.class);
 977 //              manager.registerAdapters(fLogicalPackageAdapterFactory, LogicalPackage.class);
 978         }
 979
 980         private void unregisterAdapters() {
 981                 IAdapterManager manager= Platform.getAdapterManager();
 982                 manager.unregisterAdapters(fJavaElementAdapterFactory);
 983 //              manager.unregisterAdapters(fMarkerAdapterFactory);
 984 //              manager.unregisterAdapters(fEditorInputAdapterFactory);
 985                 manager.unregisterAdapters(fResourceAdapterFactory);
 986 //              manager.unregisterAdapters(fLogicalPackageAdapterFactory);
 987         }
 988
 989         /**
 990          * Returns a combined preference store, this store is read-only.
 991          *
 992          * @return the combined preference store
 993          *
 994          * @since 3.0
 995          */
 996         public IPreferenceStore getCombinedPreferenceStore() {
 997                 if (fCombinedPreferenceStore == null) {
 998                         IPreferenceStore generalTextStore= EditorsUI.getPreferenceStore();
 999                         fCombinedPreferenceStore= new ChainedPreferenceStore(new IPreferenceStore[] { getPreferenceStore(), new PreferencesAdapter(JavaCore.getPlugin().getPluginPreferences()), generalTextStore });
1000                 }
1001                 return fCombinedPreferenceStore;
1002         }
1003
1004         public synchronized IBufferFactory getBufferFactory() {
1005                 if (fBufferFactory == null)
1006                         fBufferFactory= new CustomBufferFactory();
1007                 return fBufferFactory;
1008         }
1009         /**
1010          * Returns the registry of the extensions to the <code>org.eclipse.jdt.ui.javaFoldingStructureProvider</code>
1011          * extension point.
1012          *
1013          * @return the registry of contributed <code>IJavaFoldingStructureProvider</code>
1014          * @since 3.0
1015          */
1016         public synchronized JavaFoldingStructureProviderRegistry getFoldingStructureProviderRegistry() {
1017                 if (fFoldingStructureProviderRegistry == null)
1018                         fFoldingStructureProviderRegistry= new JavaFoldingStructureProviderRegistry();
1019                 return fFoldingStructureProviderRegistry;
1020         }
1021 }