net.sourceforge.phpeclipse.debug.ui/src/net/sourceforge/phpdt/internal/debug/ui/actions/ToggleBreakpointAdapter.java

   1 /*******************************************************************************
   2  * Copyright (c) 2000, 2004 IBM Corporation 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 API and implementation
  10  *******************************************************************************/
  11 package net.sourceforge.phpdt.internal.debug.ui.actions;
  12
  13 import java.util.ArrayList;
  14 import java.util.Iterator;
  15 import java.util.List;
  16
  17 import net.sourceforge.phpdt.core.Flags;
  18 import net.sourceforge.phpdt.core.ICompilationUnit;
  19 import net.sourceforge.phpdt.core.IJavaElement;
  20 import net.sourceforge.phpdt.core.IMethod;
  21 import net.sourceforge.phpdt.core.IType;
  22 import net.sourceforge.phpdt.core.JavaModelException;
  23 import net.sourceforge.phpdt.core.Signature;
  24 import net.sourceforge.phpdt.debug.core.PHPDebugModel;
  25 import net.sourceforge.phpdt.internal.debug.core.breakpoints.PHPLineBreakpoint;
  26 import net.sourceforge.phpdt.internal.debug.ui.PHPDebugUiPlugin;
  27 import net.sourceforge.phpdt.internal.ui.util.ExceptionHandler;
  28 import org.eclipse.core.resources.IResource;
  29 import org.eclipse.core.resources.ResourcesPlugin;
  30 import org.eclipse.core.runtime.CoreException;
  31 import org.eclipse.debug.core.DebugPlugin;
  32 import org.eclipse.debug.internal.ui.actions.ActionMessages;
  33 import org.eclipse.debug.ui.actions.IToggleBreakpointsTarget;
  34 import org.eclipse.jface.text.IDocument;
  35 import org.eclipse.jface.text.ITextSelection;
  36 import org.eclipse.jface.viewers.ISelection;
  37 import org.eclipse.jface.viewers.IStructuredSelection;
  38 import org.eclipse.ui.IEditorInput;
  39 import org.eclipse.ui.IEditorPart;
  40 import org.eclipse.ui.IFileEditorInput;
  41 import org.eclipse.ui.IWorkbenchPart;
  42 import org.eclipse.ui.texteditor.IEditorStatusLine;
  43 import org.eclipse.ui.texteditor.ITextEditor;
  44
  45 /**
  46  * Toggles a line breakpoint in a Java editor.
  47  *
  48  * @since 3.0
  49  */
  50 public class ToggleBreakpointAdapter implements IToggleBreakpointsTarget {
  51
  52         protected void report(String message, IWorkbenchPart part) {
  53                 IEditorStatusLine statusLine= (IEditorStatusLine) part.getAdapter(IEditorStatusLine.class);
  54                 if (statusLine != null) {
  55                         if (message != null) {
  56                                 statusLine.setMessage(true, message, null);
  57                         } else {
  58                                 statusLine.setMessage(true, null, null);
  59                         }
  60                 }
  61                 if (message != null && PHPDebugUiPlugin.getActiveWorkbenchShell() != null) {
  62                         PHPDebugUiPlugin.getActiveWorkbenchShell().getDisplay().beep();
  63                 }
  64         }
  65
  66 //      protected IType getType(ITextSelection selection) {
  67 //              IMember member= ActionDelegateHelper.getDefault().getCurrentMember(selection);
  68 //              IType type= null;
  69 //              if (member instanceof IType) {
  70 //                      type = (IType)member;
  71 //              } else if (member != null) {
  72 //                      type= member.getDeclaringType();
  73 //              }
  74 //              // bug 52385: we don't want local and anonymous types from compilation unit,
  75 //              // we are getting 'not-always-correct' names for them.
  76 //              try {
  77 //                      while (type != null && !type.isBinary() && type.isLocal()) {
  78 //                              type= type.getDeclaringType();
  79 //                      }
  80 //              } catch (JavaModelException e) {
  81 //                      PHPDebugUiPlugin.log(e);
  82 //              }
  83 //              return type;
  84 //      }
  85
  86         /* (non-Javadoc)
  87          * @see org.eclipse.debug.ui.actions.IToggleBreakpointsTarget#toggleLineBreakpoints(IWorkbenchPart, ISelection)
  88          */
  89         public void toggleLineBreakpoints(IWorkbenchPart part, ISelection selection) throws CoreException {
  90                 if (selection instanceof ITextSelection) {
  91                         report(null, part);
  92                         IEditorPart editorPart = (IEditorPart)part;
  93                         ITextSelection textSelection = (ITextSelection)selection;
  94 //                      IType type = getType(textSelection);
  95                         IEditorInput editorInput = editorPart.getEditorInput();
  96                         IDocument document= ((ITextEditor)editorPart).getDocumentProvider().getDocument(editorInput);
  97                         int lineNumber= textSelection.getStartLine() + 1;
  98                         int offset= textSelection.getOffset();
  99                         try {
 100 //                              if (type == null) {
 101 //                                      IClassFile classFile= (IClassFile)editorInput.getAdapter(IClassFile.class);
 102 //                                      if (classFile != null) {
 103 //                                              type= classFile.getType();
 104 //                                              // bug 34856 - if this is an inner type, ensure the breakpoint is not
 105 //                                              // being added to the outer type
 106 //                                              if (type.getDeclaringType() != null) {
 107 //                                                      ISourceRange sourceRange= type.getSourceRange();
 108 //                                                      int start= sourceRange.getOffset();
 109 //                                                      int end= start + sourceRange.getLength();
 110 //                                                      if (offset < start || offset > end) {
 111 //                                                              // not in the inner type
 112 //                                                              IStatusLineManager statusLine = editorPart.getEditorSite().getActionBars().getStatusLineManager();
 113 //                                                              statusLine .setErrorMessage(MessageFormat.format(ActionMessages.getString("ManageBreakpointRulerAction.Breakpoints_can_only_be_created_within_the_type_associated_with_the_editor__{0}._1"), new String[] { type.getTypeQualifiedName()})); //$NON-NLS-1$
 114 //                                                              Display.getCurrent().beep();
 115 //                                                              return;
 116 //                                                      }
 117 //                                              }
 118 //                                      }
 119 //                              }
 120
 121 //                              String typeName= null;
 122                                 IResource resource;
 123                                 PHPLineBreakpoint breakpoint= null;
 124 //                              if (type == null) {
 125                                         if (editorInput instanceof IFileEditorInput) {
 126                                                 resource= ((IFileEditorInput)editorInput).getFile();
 127                                         } else {
 128                                                 resource= ResourcesPlugin.getWorkspace().getRoot();
 129                                         }
 130 //                              } else {
 131 //                                      typeName= type.getFullyQualifiedName();
 132 //                                      PHPLineBreakpoint breakpoint=PHPDebugModel.lineBreakpointExists(lineNumber);
 133 //                                      if (breakpoint==null)
 134 //                                              PHPDebugModel.createLineBreakpoint(getFile(), lineNumber, 0, true, null);
 135 //                                      else
 136 //                                              DebugPlugin.getDefault().getBreakpointManager().removeBreakpoint( breakpoint, true );
 137 //
 138                                         PHPLineBreakpoint existingBreakpoint= PHPDebugModel.lineBreakpointExists(lineNumber); //typeName, lineNumber);
 139                                         if (existingBreakpoint != null) {
 140                                                 DebugPlugin.getDefault().getBreakpointManager().removeBreakpoint(existingBreakpoint, true);
 141                                                 return;
 142                                         } else {
 143                                                 breakpoint = PHPDebugModel.createLineBreakpoint(resource, lineNumber, 0, true, null);
 144                                         }
 145                                 //                              }
 146 //                              new BreakpointLocationVerifierJob(document, breakpoint, lineNumber, typeName, type, resource, (IEditorStatusLine) editorPart.getAdapter(IEditorStatusLine.class)).schedule();
 147                         } catch (CoreException ce) {
 148                                 ExceptionHandler.handle(ce, ActionMessages.getString("ManageBreakpointActionDelegate.error.title1"), ActionMessages.getString("ManageBreakpointActionDelegate.error.message1")); //$NON-NLS-1$ //$NON-NLS-2$
 149                                 return;
 150                         }
 151                 }
 152         }
 153         /*(non-Javadoc)
 154          * @see org.eclipse.debug.ui.actions.IToggleBreakpointsTarget#canToggleLineBreakpoints(IWorkbenchPart, ISelection)
 155          */
 156         public boolean canToggleLineBreakpoints(IWorkbenchPart part, ISelection selection) {
 157                 return selection instanceof ITextSelection;
 158         }
 159
 160         /* (non-Javadoc)
 161          * @see org.eclipse.debug.ui.actions.IToggleBreakpointsTarget#toggleMethodBreakpoints(org.eclipse.ui.IWorkbenchPart, org.eclipse.jface.viewers.ISelection)
 162          */
 163         public void toggleMethodBreakpoints(IWorkbenchPart part, ISelection selection) throws CoreException {
 164 //              report(null, part);
 165 //              selection = translateToMembers(part, selection);
 166 //              if (selection instanceof ITextSelection) {
 167 //                      ITextSelection textSelection = (ITextSelection) selection;
 168 //                      if (selection != null) {
 169 //                              CompilationUnit compilationUnit= parseCompilationUnit((ITextEditor)part);
 170 //                              if (compilationUnit != null) {
 171 //                                      BreakpointMethodLocator locator= new BreakpointMethodLocator(textSelection.getOffset());
 172 //                                      compilationUnit.accept(locator);
 173 //                                      String methodName= locator.getMethodName();
 174 //                                      if (methodName == null) {
 175 //                                              report(ActionMessages.getString("ManageMethodBreakpointActionDelegate.CantAdd"), part); //$NON-NLS-1$
 176 //                                              return;
 177 //                                      }
 178 //                                      String typeName= locator.getTypeName();
 179 //                                      String methodSignature= locator.getMethodSignature();
 180 //                                      if (methodSignature == null) {
 181 //                                              report(ActionMessages.getString("ManageMethodBreakpointActionDelegate.methodNonAvailable"), part); //$NON-NLS-1$
 182 //                                              return;
 183 //                                      }
 184 //                                      // check if this method breakpoint already exist. If yes, remove it.
 185 //                                      IBreakpointManager breakpointManager= DebugPlugin.getDefault().getBreakpointManager();
 186 //                                      IBreakpoint[] breakpoints= breakpointManager.getBreakpoints(JDIDebugModel.getPluginIdentifier());
 187 //                                      for (int i= 0; i < breakpoints.length; i++) {
 188 //                                              IBreakpoint breakpoint= breakpoints[i];
 189 //                                              if (breakpoint instanceof IJavaMethodBreakpoint) {
 190 //                                                      IJavaMethodBreakpoint methodBreakpoint= (IJavaMethodBreakpoint)breakpoint;
 191 //                                                      if (typeName.equals(methodBreakpoint.getTypeName())
 192 //                                                                      && methodName.equals(methodBreakpoint.getMethodName())
 193 //                                                                      && methodSignature.equals(methodBreakpoint.getMethodSignature())) {
 194 //                                                              breakpointManager.removeBreakpoint(methodBreakpoint, true);
 195 //                                                              return;
 196 //                                                      }
 197 //                                              }
 198 //                                      }
 199 //                                      // add the breakpoint
 200 //                                      JDIDebugModel.createMethodBreakpoint(getResource((IEditorPart)part), typeName, methodName, methodSignature, true, false, false, -1, -1, -1, 0, true, new HashMap(10));
 201 //                              }
 202 //                      }
 203 //              } else if (selection instanceof IStructuredSelection) {
 204 //                      IMethod[] members= getMethods((IStructuredSelection)selection);
 205 //                      if (members.length == 0) {
 206 //                              report(ActionMessages.getString("ToggleBreakpointAdapter.9"), part); //$NON-NLS-1$
 207 //                              return;
 208 //                      }
 209 //                      // add or remove the breakpoint
 210 //                      IBreakpointManager breakpointManager= DebugPlugin.getDefault().getBreakpointManager();
 211 //                      for (int i= 0, length= members.length; i < length; i++) {
 212 //                              IMethod method= members[i];
 213 //                              IJavaBreakpoint breakpoint= getBreakpoint(method);
 214 //                              if (breakpoint == null) {
 215 //                                      // add breakpoint
 216 //                                      int start = -1;
 217 //                                      int end = -1;
 218 //                                      ISourceRange range = method.getNameRange();
 219 //                                      if (range != null) {
 220 //                                              start = range.getOffset();
 221 //                                              end = start + range.getLength();
 222 //                                      }
 223 //                                      Map attributes = new HashMap(10);
 224 //                                      BreakpointUtils.addJavaBreakpointAttributes(attributes, method);
 225 //                                      String methodName = method.getElementName();
 226 //                                      if (method.isConstructor()) {
 227 //                                              methodName = "<init>"; //$NON-NLS-1$
 228 //                                      }
 229 //                                      IType type= method.getDeclaringType();
 230 //                                      String methodSignature= method.getSignature();
 231 //                                      if (!type.isBinary()) {
 232 //                                              //resolve the type names
 233 //                                              methodSignature= resolveMethodSignature(type, methodSignature);
 234 //                                              if (methodSignature == null) {
 235 //                                                      IStatus status = new Status(IStatus.ERROR, JDIDebugUIPlugin.getUniqueIdentifier(), IStatus.ERROR, "Source method signature could not be resolved", null); //$NON-NLS-1$
 236 //                                                      throw new CoreException(status);
 237 //                                              }
 238 //                                      }
 239 //                                      JDIDebugModel.createMethodBreakpoint(BreakpointUtils.getBreakpointResource(method), type.getFullyQualifiedName(), methodName, methodSignature, true, false, false, -1, start, end, 0, true, attributes);
 240 //                              } else {
 241 //                                      // remove breakpoint
 242 //                                      breakpointManager.removeBreakpoint(breakpoint, true);
 243 //                              }
 244 //                      }
 245 //              }
 246         }
 247
 248         /* (non-Javadoc)
 249          * @see org.eclipse.debug.ui.actions.IToggleBreakpointsTarget#canToggleMethodBreakpoints(org.eclipse.ui.IWorkbenchPart, org.eclipse.jface.viewers.ISelection)
 250          */
 251         public boolean canToggleMethodBreakpoints(IWorkbenchPart part, ISelection selection) {
 252 //              if (selection instanceof IStructuredSelection) {
 253 //                      IStructuredSelection ss = (IStructuredSelection) selection;
 254 //                      return getMethods(ss).length > 0;
 255 //              } else {
 256 //                      return selection instanceof ITextSelection;
 257 //              }
 258                 return false;
 259         }
 260
 261         protected IMethod[] getMethods(IStructuredSelection selection) {
 262                 if (selection.isEmpty()) {
 263                         return new IMethod[0];
 264                 } else {
 265                         List methods = new ArrayList(selection.size());
 266                         Iterator iterator = selection.iterator();
 267                         while (iterator.hasNext()) {
 268                                 Object thing = iterator.next();
 269                                 try {
 270                                         if (thing instanceof IMethod && !Flags.isAbstract(((IMethod)thing).getFlags())) {
 271                                                 methods.add(thing);
 272                                         }
 273                                 } catch (JavaModelException e) {
 274                                 }
 275                         }
 276                         return (IMethod[]) methods.toArray(new IMethod[methods.size()]);
 277                 }
 278         }
 279
 280 //      protected IField[] getFields(IStructuredSelection selection) {
 281 //              if (selection.isEmpty()) {
 282 //                      return new IField[0];
 283 //              } else {
 284 //                      List fields = new ArrayList(selection.size());
 285 //                      Iterator iterator = selection.iterator();
 286 //                      while (iterator.hasNext()) {
 287 //                              Object thing = iterator.next();
 288 //                              if (thing instanceof IField) {
 289 //                                      fields.add(thing);
 290 //                              } else if (thing instanceof IJavaFieldVariable) {
 291 //                                      IField field= getField((IJavaFieldVariable) thing);
 292 //                                      if (field != null) {
 293 //                                              fields.add(field);
 294 //                                      }
 295 //                              }
 296 //                      }
 297 //                      return (IField[]) fields.toArray(new IField[fields.size()]);
 298 //              }
 299 //      }
 300
 301         /* (non-Javadoc)
 302          * @see org.eclipse.debug.ui.actions.IToggleBreakpointsTarget#toggleWatchpoints(org.eclipse.ui.IWorkbenchPart, org.eclipse.jface.viewers.ISelection)
 303          */
 304         public void toggleWatchpoints(IWorkbenchPart part, ISelection selection) throws CoreException {
 305 //              report(null, part);
 306 //              selection = translateToMembers(part, selection);
 307 //              if (selection instanceof ITextSelection) {
 308 //                      ITextSelection textSelection= (ITextSelection) selection;
 309 //                      CompilationUnit compilationUnit= parseCompilationUnit((ITextEditor)part);
 310 //                      if (compilationUnit != null) {
 311 //                              BreakpointFieldLocator locator= new BreakpointFieldLocator(textSelection.getOffset());
 312 //                              compilationUnit.accept(locator);
 313 //                              String fieldName= locator.getFieldName();
 314 //                              if (fieldName == null) {
 315 //                                      report(ActionMessages.getString("ManageWatchpointActionDelegate.CantAdd"), part); //$NON-NLS-1$
 316 //                                      return;
 317 //                              }
 318 //                              String typeName= locator.getTypeName();
 319 //                              // check if the watchpoint already exists. If yes, remove it
 320 //                              IBreakpointManager breakpointManager= DebugPlugin.getDefault().getBreakpointManager();
 321 //                              IBreakpoint[] breakpoints= breakpointManager.getBreakpoints(JDIDebugModel.getPluginIdentifier());
 322 //                              for (int i= 0; i < breakpoints.length; i++) {
 323 //                                      IBreakpoint breakpoint= breakpoints[i];
 324 //                                      if (breakpoint instanceof IJavaWatchpoint) {
 325 //                                              IJavaWatchpoint watchpoint= (IJavaWatchpoint)breakpoint;
 326 //                                              if (typeName.equals(watchpoint.getTypeName()) && fieldName.equals(watchpoint.getFieldName())) {
 327 //                                                      breakpointManager.removeBreakpoint(watchpoint, true);
 328 //                                                      return;
 329 //                                              }
 330 //                                      }
 331 //                              }
 332 //                              // add the watchpoint
 333 //                              JDIDebugModel.createWatchpoint(getResource((IEditorPart)part), typeName, fieldName, -1, -1, -1, 0, true, new HashMap(10));
 334 //                      }
 335 //              } else if (selection instanceof IStructuredSelection) {
 336 //                      IField[] members = getFields((IStructuredSelection)selection);
 337 //                      if (members.length == 0) {
 338 //                              report(ActionMessages.getString("ToggleBreakpointAdapter.10"), part); //$NON-NLS-1$
 339 //                              return;
 340 //                      }
 341 //                      // add or remove watchpoint
 342 //                      IBreakpointManager breakpointManager= DebugPlugin.getDefault().getBreakpointManager();
 343 //                      for (int i= 0, length= members.length; i < length; i++) {
 344 //                              IField element= members[i];
 345 //                              IJavaBreakpoint breakpoint= getBreakpoint(element);
 346 //                              if (breakpoint == null) {
 347 //                                      IType type = element.getDeclaringType();
 348 //                                      int start = -1;
 349 //                                      int end = -1;
 350 //                                      ISourceRange range = element.getNameRange();
 351 //                                      if (range != null) {
 352 //                                              start = range.getOffset();
 353 //                                              end = start + range.getLength();
 354 //                                      }
 355 //                                      Map attributes = new HashMap(10);
 356 //                                      BreakpointUtils.addJavaBreakpointAttributes(attributes, element);
 357 //                                      JDIDebugModel.createWatchpoint(BreakpointUtils.getBreakpointResource(type), type.getFullyQualifiedName(), element.getElementName(), -1, start, end, 0, true, attributes);
 358 //                              } else {
 359 //                                      // remove breakpoint
 360 //                                      breakpointManager.removeBreakpoint(breakpoint, true);
 361 //                              }
 362 //                      }
 363 //              }
 364         }
 365
 366         public static String resolveMethodSignature(IType type, String methodSignature) throws JavaModelException {
 367                 String[] parameterTypes= Signature.getParameterTypes(methodSignature);
 368                 int length= length= parameterTypes.length;
 369                 String[] resolvedParameterTypes= new String[length];
 370
 371                 for (int i = 0; i < length; i++) {
 372                         resolvedParameterTypes[i]= resolveType(type, parameterTypes[i]);
 373                         if (resolvedParameterTypes[i] == null) {
 374                                 return null;
 375                         }
 376                 }
 377
 378                 String resolvedReturnType= resolveType(type, Signature.getReturnType(methodSignature));
 379                 if (resolvedReturnType == null) {
 380                         return null;
 381                 }
 382
 383                 return Signature.createMethodSignature(resolvedParameterTypes, resolvedReturnType);
 384         }
 385
 386         private static String resolveType(IType type, String typeSignature) throws JavaModelException {
 387 //              int count= Signature.getArrayCount(typeSignature);
 388 //              String elementTypeSignature= Signature.getElementType(typeSignature);
 389 //              if (elementTypeSignature.length() == 1) {
 390 //                      // no need to resolve primitive types
 391 //                      return typeSignature;
 392 //              }
 393 //              String elementTypeName= Signature.toString(elementTypeSignature);
 394 //              String[][] resolvedElementTypeNames= type.resolveType(elementTypeName);
 395 //              if (resolvedElementTypeNames == null || resolvedElementTypeNames.length != 1) {
 396 //                      // the type name cannot be resolved
 397 //                      return null;
 398 //              }
 399 //              String resolvedElementTypeName= Signature.toQualifiedName(resolvedElementTypeNames[0]);
 400 //              String resolvedElementTypeSignature= Signature.createTypeSignature(resolvedElementTypeName, true).replace('.', '/');
 401 //              return Signature.createArraySignature(resolvedElementTypeSignature, count);
 402                 return "";
 403         }
 404
 405         protected static IResource getResource(IEditorPart editor) {
 406                 IResource resource;
 407                 IEditorInput editorInput = editor.getEditorInput();
 408                 if (editorInput instanceof IFileEditorInput) {
 409                         resource= ((IFileEditorInput)editorInput).getFile();
 410                 } else {
 411                         resource= ResourcesPlugin.getWorkspace().getRoot();
 412                 }
 413                 return resource;
 414         }
 415
 416         /**
 417          * Returns a handle to the specified method or <code>null</code> if none.
 418          *
 419          * @param editorPart the editor containing the method
 420          * @param typeName
 421          * @param methodName
 422          * @param signature
 423          * @return handle or <code>null</code>
 424          */
 425         protected IMethod getMethodHandle(IEditorPart editorPart, String typeName, String methodName, String signature) throws CoreException {
 426                 IJavaElement element = (IJavaElement) editorPart.getEditorInput().getAdapter(IJavaElement.class);
 427                 IType type = null;
 428                 if (element instanceof ICompilationUnit) {
 429                         IType[] types = ((ICompilationUnit)element).getAllTypes();
 430                         for (int i = 0; i < types.length; i++) {
 431                                 if (types[i].getFullyQualifiedName().equals(typeName)) {
 432                                         type = types[i];
 433                                         break;
 434                                 }
 435                         }
 436                 }
 437 //              else if (element instanceof IClassFile) {
 438 //                      type = ((IClassFile)element).getType();
 439 //              }
 440                 if (type != null) {
 441                         String[] sigs = Signature.getParameterTypes(signature);
 442                         return type.getMethod(methodName, sigs);
 443                 }
 444                 return null;
 445         }
 446
 447 //      protected IJavaBreakpoint getBreakpoint(IMember element) {
 448 //              IBreakpointManager breakpointManager= DebugPlugin.getDefault().getBreakpointManager();
 449 //              IBreakpoint[] breakpoints= breakpointManager.getBreakpoints(JDIDebugModel.getPluginIdentifier());
 450 //              if (element instanceof IMethod) {
 451 //                      IMethod method= (IMethod)element;
 452 //                      for (int i= 0; i < breakpoints.length; i++) {
 453 //                              IBreakpoint breakpoint= breakpoints[i];
 454 //                              if (breakpoint instanceof IJavaMethodBreakpoint) {
 455 //                                      IJavaMethodBreakpoint methodBreakpoint= (IJavaMethodBreakpoint)breakpoint;
 456 //                                      IMember container = null;
 457 //                                      try {
 458 //                                              container= BreakpointUtils.getMember(methodBreakpoint);
 459 //                                      } catch (CoreException e) {
 460 //                                              JDIDebugUIPlugin.log(e);
 461 //                                              return null;
 462 //                                      }
 463 //                                      if (container == null) {
 464 //                                              try {
 465 //                                                      if (method.getDeclaringType().getFullyQualifiedName().equals(methodBreakpoint.getTypeName())
 466 //                                                                      && method.getElementName().equals(methodBreakpoint.getMethodName())
 467 //                                                                      && method.getSignature().equals(methodBreakpoint.getMethodSignature())) {
 468 //                                                              return methodBreakpoint;
 469 //                                                      }
 470 //                                              } catch (CoreException e) {
 471 //                                                      JDIDebugUIPlugin.log(e);
 472 //                                              }
 473 //                                      } else {
 474 //                                              if (container instanceof IMethod) {
 475 //                                                      if (method.getDeclaringType().getFullyQualifiedName().equals(container.getDeclaringType().getFullyQualifiedName())) {
 476 //                                                              if (method.isSimilar((IMethod)container)) {
 477 //                                                                      return methodBreakpoint;
 478 //                                                              }
 479 //                                                      }
 480 //                                              }
 481 //                                      }
 482 //                              }
 483 //                      }
 484 //              } else if (element instanceof IField) {
 485 //                      for (int i= 0; i < breakpoints.length; i++) {
 486 //                              IBreakpoint breakpoint= breakpoints[i];
 487 //                              if (breakpoint instanceof IJavaWatchpoint) {
 488 //                                      try {
 489 //                                              if (equalFields(element, (IJavaWatchpoint)breakpoint))
 490 //                                                      return (IJavaBreakpoint)breakpoint;
 491 //                                      } catch (CoreException e) {
 492 //                                              JDIDebugUIPlugin.log(e);
 493 //                                      }
 494 //                              }
 495 //                      }
 496 //              }
 497 //              return null;
 498 //      }
 499
 500         /**
 501          * Compare two fields. The default <code>equals()</code>
 502          * method for <code>IField</code> doesn't give the comparison desired.
 503          */
 504 //      private boolean equalFields(IMember breakpointField, IJavaWatchpoint watchpoint) throws CoreException {
 505 //              return (breakpointField.getElementName().equals(watchpoint.getFieldName()) &&
 506 //              breakpointField.getDeclaringType().getFullyQualifiedName().equals(watchpoint.getTypeName()));
 507 //      }
 508 //
 509 //      protected CompilationUnit parseCompilationUnit(ITextEditor editor) {
 510 //              IEditorInput editorInput = editor.getEditorInput();
 511 //              IDocument document= editor.getDocumentProvider().getDocument(editorInput);
 512 //              ASTParser parser = ASTParser.newParser(AST.JLS2);
 513 //              parser.setSource(document.get().toCharArray());
 514 //              return (CompilationUnit) parser.createAST(null);
 515 //      }
 516
 517         /* (non-Javadoc)
 518          * @see org.eclipse.debug.ui.actions.IToggleBreakpointsTarget#canToggleWatchpoints(org.eclipse.ui.IWorkbenchPart, org.eclipse.jface.viewers.ISelection)
 519          */
 520         public boolean canToggleWatchpoints(IWorkbenchPart part, ISelection selection) {
 521 //              if (selection instanceof IStructuredSelection) {
 522 //                      IStructuredSelection ss = (IStructuredSelection) selection;
 523 //                      return getFields(ss).length > 0;
 524 //              } else {
 525 //                      return selection instanceof ITextSelection;
 526 //              }
 527                 return false;
 528         }
 529
 530         /**
 531          * Returns a selection of the member in the given text selection,
 532          * or the original selection if none.
 533          *
 534          * @param part
 535          * @param selection
 536          * @return a structured selection of the member in the given text selection,
 537          * or the original selection if none
 538          * @exception CoreException if an exceptoin occurrs
 539          */
 540 //      protected ISelection translateToMembers(IWorkbenchPart part, ISelection selection) throws CoreException {
 541 //              if (selection instanceof ITextSelection && part instanceof IEditorPart) {
 542 //                      ITextSelection textSelection = (ITextSelection)selection;
 543 //                      IEditorPart editorPart = (IEditorPart) part;
 544 //                      IEditorInput editorInput = editorPart.getEditorInput();
 545 //                      IMember m= null;
 546 //                      IClassFile classFile= (IClassFile)editorInput.getAdapter(IClassFile.class);
 547 //                      if (classFile != null) {
 548 //                              IJavaElement e= classFile.getElementAt(textSelection.getOffset());
 549 //                              if (e instanceof IMember) {
 550 //                                      m= (IMember)e;
 551 //                              }
 552 //                      } else {
 553 //                              IWorkingCopyManager manager= JavaUI.getWorkingCopyManager();
 554 //                              ICompilationUnit unit= manager.getWorkingCopy(editorInput);
 555 //                              if (unit != null) {
 556 //                                      synchronized (unit) {
 557 //                                              unit.reconcile(ICompilationUnit.NO_AST /*don't create ast*/, false/*don't force problem detection*/, null/*use primary owner*/, null/*no progress monitor*/);
 558 //                                      }
 559 //                                      IJavaElement e = unit.getElementAt(textSelection.getOffset());
 560 //                                      if (e instanceof IMember) {
 561 //                                              m= (IMember)e;
 562 //                                      }
 563 //                              }
 564 //                      }
 565 //                      if (m != null) {
 566 //                              return new StructuredSelection(m);
 567 //                      }
 568 //              }
 569 //              return selection;
 570 //      }
 571
 572         /**
 573          * Returns a list of matching types (IType - Java model) that correspond to the
 574          * declaring type (ReferenceType - JDI model) of the given variable.
 575          */
 576 //      protected static List searchForDeclaringType(IJavaFieldVariable variable) {
 577 //              List types= new ArrayList();
 578 //              ILaunch launch = variable.getDebugTarget().getLaunch();
 579 //              if (launch == null) {
 580 //                      return types;
 581 //              }
 582 //
 583 //              ILaunchConfiguration configuration= launch.getLaunchConfiguration();
 584 //              IJavaProject[] javaProjects = null;
 585 //              IWorkspace workspace= ResourcesPlugin.getWorkspace();
 586 //              if (configuration != null) {
 587 //                      // Launch configuration support
 588 //                      try {
 589 //                              String projectName= configuration.getAttribute(IJavaLaunchConfigurationConstants.ATTR_PROJECT_NAME, ""); //$NON-NLS-1$
 590 //                              if (projectName.length() != 0) {
 591 //                                      javaProjects= new IJavaProject[] {JavaCore.create(workspace.getRoot().getProject(projectName))};
 592 //                              } else {
 593 //                                      IProject[] projects= ResourcesPlugin.getWorkspace().getRoot().getProjects();
 594 //                                      IProject project;
 595 //                                      List projectList= new ArrayList();
 596 //                                      for (int i= 0, numProjects= projects.length; i < numProjects; i++) {
 597 //                                              project= projects[i];
 598 //                                              if (project.isAccessible() && project.hasNature(JavaCore.NATURE_ID)) {
 599 //                                                      projectList.add(JavaCore.create(project));
 600 //                                              }
 601 //                                      }
 602 //                                      javaProjects= new IJavaProject[projectList.size()];
 603 //                                      projectList.toArray(javaProjects);
 604 //                              }
 605 //                      } catch (CoreException e) {
 606 //                              JDIDebugUIPlugin.log(e);
 607 //                      }
 608 //              }
 609 //              if (javaProjects == null) {
 610 //                      return types;
 611 //              }
 612 //
 613 //              SearchEngine engine= new SearchEngine();
 614 //              IJavaSearchScope scope= SearchEngine.createJavaSearchScope(javaProjects, true);
 615 //              String declaringType= null;
 616 //              try {
 617 //                      declaringType= variable.getDeclaringType().getName();
 618 //              } catch (DebugException x) {
 619 //                      JDIDebugUIPlugin.log(x);
 620 //                      return types;
 621 //              }
 622 //              ArrayList typeRefsFound= new ArrayList(3);
 623 //              ITypeNameRequestor requestor= new TypeInfoRequestor(typeRefsFound);
 624 //              try {
 625 //                      engine.searchAllTypeNames(
 626 //                              getPackage(declaringType),
 627 //                              getTypeName(declaringType),
 628 //                              SearchPattern.R_EXACT_MATCH | SearchPattern.R_CASE_SENSITIVE,
 629 //                              IJavaSearchConstants.CLASS,
 630 //                              scope,
 631 //                              requestor,
 632 //                              IJavaSearchConstants.WAIT_UNTIL_READY_TO_SEARCH,
 633 //                              null);
 634 //              } catch (JavaModelException x) {
 635 //                      JDIDebugUIPlugin.log(x);
 636 //                      return types;
 637 //              }
 638 //              Iterator iter= typeRefsFound.iterator();
 639 //              TypeInfo typeInfo= null;
 640 //              while (iter.hasNext()) {
 641 //                      typeInfo= (TypeInfo)iter.next();
 642 //                      try {
 643 //                              types.add(typeInfo.resolveType(scope));
 644 //                      } catch (JavaModelException jme) {
 645 //                              JDIDebugUIPlugin.log(jme);
 646 //                      }
 647 //              }
 648 //              return types;
 649 //      }
 650
 651         /**
 652          * Returns the package name of the given fully qualified type name.
 653          * The package name is assumed to be the dot-separated prefix of the
 654          * type name.
 655          */
 656 //      protected static char[] getPackage(String fullyQualifiedName) {
 657 //              int index= fullyQualifiedName.lastIndexOf('.');
 658 //              if (index == -1) {
 659 //                      return new char[0];
 660 //              }
 661 //              return fullyQualifiedName.substring(0, index).toCharArray();
 662 //      }
 663 //
 664 //      /**
 665 //       * Returns a simple type name from the given fully qualified type name.
 666 //       * The type name is assumed to be the last contiguous segment of the
 667 //       * fullyQualifiedName not containing a '.' or '$'
 668 //       */
 669 //      protected static char[] getTypeName(String fullyQualifiedName) {
 670 //              int index= fullyQualifiedName.lastIndexOf('.');
 671 //              String typeName= fullyQualifiedName.substring(index + 1);
 672 //              int lastInnerClass= typeName.lastIndexOf('$');
 673 //              if (lastInnerClass != -1) {
 674 //                      typeName= typeName.substring(lastInnerClass + 1);
 675 //              }
 676 //              return typeName.toCharArray();
 677 //      }
 678 //
 679 //      /**
 680 //       * Return the associated IField (Java model) for the given
 681 //       * IJavaFieldVariable (JDI model)
 682 //       */
 683 //      private IField getField(IJavaFieldVariable variable) {
 684 //              String varName= null;
 685 //              try {
 686 //                      varName= variable.getName();
 687 //              } catch (DebugException x) {
 688 //                      JDIDebugUIPlugin.log(x);
 689 //                      return null;
 690 //              }
 691 //              IField field;
 692 //              List types= searchForDeclaringType(variable);
 693 //              Iterator iter= types.iterator();
 694 //              while (iter.hasNext()) {
 695 //                      IType type= (IType)iter.next();
 696 //                      field= type.getField(varName);
 697 //                      if (field.exists()) {
 698 //                              return field;
 699 //                      }
 700 //              }
 701 //              return null;
 702 //      }
 703 }