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.HashMap;
  15 import java.util.Iterator;
  16 import java.util.List;
  17 import java.util.Map;
  18
  19 import net.sourceforge.phpdt.core.Flags;
  20 import net.sourceforge.phpdt.core.ICompilationUnit;
  21 import net.sourceforge.phpdt.core.IField;
  22 import net.sourceforge.phpdt.core.IJavaElement;
  23 import net.sourceforge.phpdt.core.IJavaProject;
  24 import net.sourceforge.phpdt.core.IMember;
  25 import net.sourceforge.phpdt.core.IMethod;
  26 import net.sourceforge.phpdt.core.ISourceRange;
  27 import net.sourceforge.phpdt.core.IType;
  28 import net.sourceforge.phpdt.core.JavaCore;
  29 import net.sourceforge.phpdt.core.JavaModelException;
  30 import net.sourceforge.phpdt.core.Signature;
  31 import net.sourceforge.phpdt.core.dom.CompilationUnit;
  32 import net.sourceforge.phpdt.core.search.IJavaSearchConstants;
  33 import net.sourceforge.phpdt.core.search.ITypeNameRequestor;
  34 import net.sourceforge.phpdt.debug.core.PHPDebugModel;
  35 import net.sourceforge.phpdt.internal.debug.core.breakpoints.PHPLineBreakpoint;
  36 import net.sourceforge.phpdt.internal.debug.ui.PHPDebugUiPlugin;
  37 import net.sourceforge.phpdt.internal.ui.util.ExceptionHandler;
  38 import net.sourceforge.phpdt.ui.IWorkingCopyManager;
  39 import net.sourceforge.phpdt.ui.JavaUI;
  40
  41 import org.eclipse.core.resources.IProject;
  42 import org.eclipse.core.resources.IResource;
  43 import org.eclipse.core.resources.IWorkspace;
  44 import org.eclipse.core.resources.ResourcesPlugin;
  45 import org.eclipse.core.runtime.CoreException;
  46 import org.eclipse.core.runtime.IStatus;
  47 import org.eclipse.core.runtime.Status;
  48 import org.eclipse.debug.core.DebugException;
  49 import org.eclipse.debug.core.DebugPlugin;
  50 import org.eclipse.debug.core.IBreakpointManager;
  51 import org.eclipse.debug.core.ILaunch;
  52 import org.eclipse.debug.core.ILaunchConfiguration;
  53 import org.eclipse.debug.core.model.IBreakpoint;
  54 import org.eclipse.debug.internal.ui.actions.ActionMessages;
  55 import org.eclipse.debug.ui.actions.IToggleBreakpointsTarget;
  56 import org.eclipse.jface.text.BadLocationException;
  57 import org.eclipse.jface.text.IDocument;
  58 import org.eclipse.jface.text.IRegion;
  59 import org.eclipse.jface.text.ITextSelection;
  60 import org.eclipse.jface.viewers.ISelection;
  61 import org.eclipse.jface.viewers.IStructuredSelection;
  62 import org.eclipse.jface.viewers.StructuredSelection;
  63 import org.eclipse.ui.IEditorInput;
  64 import org.eclipse.ui.IEditorPart;
  65 import org.eclipse.ui.IFileEditorInput;
  66 import org.eclipse.ui.IWorkbenchPart;
  67 import org.eclipse.ui.texteditor.IEditorStatusLine;
  68 import org.eclipse.ui.texteditor.ITextEditor;
  69
  70 /**
  71  * Toggles a line breakpoint in a Java editor.
  72  *
  73  * @since 3.0
  74  */
  75 public class ToggleBreakpointAdapter implements IToggleBreakpointsTarget {
  76
  77         protected void report(String message, IWorkbenchPart part) {
  78                 IEditorStatusLine statusLine= (IEditorStatusLine) part.getAdapter(IEditorStatusLine.class);
  79                 if (statusLine != null) {
  80                         if (message != null) {
  81                                 statusLine.setMessage(true, message, null);
  82                         } else {
  83                                 statusLine.setMessage(true, null, null);
  84                         }
  85                 }
  86                 if (message != null && PHPDebugUiPlugin.getActiveWorkbenchShell() != null) {
  87                         PHPDebugUiPlugin.getActiveWorkbenchShell().getDisplay().beep();
  88                 }
  89         }
  90
  91 //      protected IType getType(ITextSelection selection) {
  92 //              IMember member= ActionDelegateHelper.getDefault().getCurrentMember(selection);
  93 //              IType type= null;
  94 //              if (member instanceof IType) {
  95 //                      type = (IType)member;
  96 //              } else if (member != null) {
  97 //                      type= member.getDeclaringType();
  98 //              }
  99 //              // bug 52385: we don't want local and anonymous types from compilation unit,
 100 //              // we are getting 'not-always-correct' names for them.
 101 //              try {
 102 //                      while (type != null && !type.isBinary() && type.isLocal()) {
 103 //                              type= type.getDeclaringType();
 104 //                      }
 105 //              } catch (JavaModelException e) {
 106 //                      PHPDebugUiPlugin.log(e);
 107 //              }
 108 //              return type;
 109 //      }
 110
 111         /* (non-Javadoc)
 112          * @see org.eclipse.debug.ui.actions.IToggleBreakpointsTarget#toggleLineBreakpoints(IWorkbenchPart, ISelection)
 113          */
 114         public void toggleLineBreakpoints(IWorkbenchPart part, ISelection selection) throws CoreException {
 115                 if (selection instanceof ITextSelection) {
 116                         report(null, part);
 117                         IEditorPart editorPart = (IEditorPart)part;
 118                         ITextSelection textSelection = (ITextSelection)selection;
 119 //                      IType type = getType(textSelection);
 120                         IEditorInput editorInput = editorPart.getEditorInput();
 121                         IDocument document= ((ITextEditor)editorPart).getDocumentProvider().getDocument(editorInput);
 122                         int lineNumber= textSelection.getStartLine() + 1;
 123                         int offset= textSelection.getOffset();
 124                         try {
 125 //                              if (type == null) {
 126 //                                      IClassFile classFile= (IClassFile)editorInput.getAdapter(IClassFile.class);
 127 //                                      if (classFile != null) {
 128 //                                              type= classFile.getType();
 129 //                                              // bug 34856 - if this is an inner type, ensure the breakpoint is not
 130 //                                              // being added to the outer type
 131 //                                              if (type.getDeclaringType() != null) {
 132 //                                                      ISourceRange sourceRange= type.getSourceRange();
 133 //                                                      int start= sourceRange.getOffset();
 134 //                                                      int end= start + sourceRange.getLength();
 135 //                                                      if (offset < start || offset > end) {
 136 //                                                              // not in the inner type
 137 //                                                              IStatusLineManager statusLine = editorPart.getEditorSite().getActionBars().getStatusLineManager();
 138 //                                                              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()})); //$NON-NLS-1$
 139 //                                                              Display.getCurrent().beep();
 140 //                                                              return;
 141 //                                                      }
 142 //                                              }
 143 //                                      }
 144 //                              }
 145
 146 //                              String typeName= null;
 147                                 IResource resource;
 148                                 PHPLineBreakpoint breakpoint= null;
 149 //                              if (type == null) {
 150                                         if (editorInput instanceof IFileEditorInput) {
 151                                                 resource= ((IFileEditorInput)editorInput).getFile();
 152                                         } else {
 153                                                 resource= ResourcesPlugin.getWorkspace().getRoot();
 154                                         }
 155 //                              } else {
 156 //                                      typeName= type.getFullyQualifiedName();
 157 //                                      PHPLineBreakpoint breakpoint=PHPDebugModel.lineBreakpointExists(lineNumber);
 158 //                                      if (breakpoint==null)
 159 //                                              PHPDebugModel.createLineBreakpoint(getFile(), lineNumber, 0, true, null);
 160 //                                      else
 161 //                                              DebugPlugin.getDefault().getBreakpointManager().removeBreakpoint( breakpoint, true );
 162 //
 163                                         PHPLineBreakpoint existingBreakpoint= PHPDebugModel.lineBreakpointExists(lineNumber); //typeName, lineNumber);
 164                                         if (existingBreakpoint != null) {
 165                                                 DebugPlugin.getDefault().getBreakpointManager().removeBreakpoint(existingBreakpoint, true);
 166                                                 return;
 167                                         } else {
 168                                                 breakpoint = PHPDebugModel.createLineBreakpoint(resource, lineNumber, 0, true, null);
 169                                         }
 170                                 //                              }
 171 //                              new BreakpointLocationVerifierJob(document, breakpoint, lineNumber, typeName, type, resource, (IEditorStatusLine) editorPart.getAdapter(IEditorStatusLine.class)).schedule();
 172                         } catch (CoreException ce) {
 173                                 ExceptionHandler.handle(ce, ActionMessages.getString("ManageBreakpointActionDelegate.error.title1"), ActionMessages.getString("ManageBreakpointActionDelegate.error.message1")); //$NON-NLS-1$ //$NON-NLS-2$
 174                                 return;
 175                         }
 176                 }
 177         }
 178         /*(non-Javadoc)
 179          * @see org.eclipse.debug.ui.actions.IToggleBreakpointsTarget#canToggleLineBreakpoints(IWorkbenchPart, ISelection)
 180          */
 181         public boolean canToggleLineBreakpoints(IWorkbenchPart part, ISelection selection) {
 182                 return selection instanceof ITextSelection;
 183         }
 184
 185         /* (non-Javadoc)
 186          * @see org.eclipse.debug.ui.actions.IToggleBreakpointsTarget#toggleMethodBreakpoints(org.eclipse.ui.IWorkbenchPart, org.eclipse.jface.viewers.ISelection)
 187          */
 188         public void toggleMethodBreakpoints(IWorkbenchPart part, ISelection selection) throws CoreException {
 189 //              report(null, part);
 190 //              selection = translateToMembers(part, selection);
 191 //              if (selection instanceof ITextSelection) {
 192 //                      ITextSelection textSelection = (ITextSelection) selection;
 193 //                      if (selection != null) {
 194 //                              CompilationUnit compilationUnit= parseCompilationUnit((ITextEditor)part);
 195 //                              if (compilationUnit != null) {
 196 //                                      BreakpointMethodLocator locator= new BreakpointMethodLocator(textSelection.getOffset());
 197 //                                      compilationUnit.accept(locator);
 198 //                                      String methodName= locator.getMethodName();
 199 //                                      if (methodName == null) {
 200 //                                              report(ActionMessages.getString("ManageMethodBreakpointActionDelegate.CantAdd"), part); //$NON-NLS-1$
 201 //                                              return;
 202 //                                      }
 203 //                                      String typeName= locator.getTypeName();
 204 //                                      String methodSignature= locator.getMethodSignature();
 205 //                                      if (methodSignature == null) {
 206 //                                              report(ActionMessages.getString("ManageMethodBreakpointActionDelegate.methodNonAvailable"), part); //$NON-NLS-1$
 207 //                                              return;
 208 //                                      }
 209 //                                      // check if this method breakpoint already exist. If yes, remove it.
 210 //                                      IBreakpointManager breakpointManager= DebugPlugin.getDefault().getBreakpointManager();
 211 //                                      IBreakpoint[] breakpoints= breakpointManager.getBreakpoints(JDIDebugModel.getPluginIdentifier());
 212 //                                      for (int i= 0; i < breakpoints.length; i++) {
 213 //                                              IBreakpoint breakpoint= breakpoints[i];
 214 //                                              if (breakpoint instanceof IJavaMethodBreakpoint) {
 215 //                                                      IJavaMethodBreakpoint methodBreakpoint= (IJavaMethodBreakpoint)breakpoint;
 216 //                                                      if (typeName.equals(methodBreakpoint.getTypeName())
 217 //                                                                      && methodName.equals(methodBreakpoint.getMethodName())
 218 //                                                                      && methodSignature.equals(methodBreakpoint.getMethodSignature())) {
 219 //                                                              breakpointManager.removeBreakpoint(methodBreakpoint, true);
 220 //                                                              return;
 221 //                                                      }
 222 //                                              }
 223 //                                      }
 224 //                                      // add the breakpoint
 225 //                                      JDIDebugModel.createMethodBreakpoint(getResource((IEditorPart)part), typeName, methodName, methodSignature, true, false, false, -1, -1, -1, 0, true, new HashMap(10));
 226 //                              }
 227 //                      }
 228 //              } else if (selection instanceof IStructuredSelection) {
 229 //                      IMethod[] members= getMethods((IStructuredSelection)selection);
 230 //                      if (members.length == 0) {
 231 //                              report(ActionMessages.getString("ToggleBreakpointAdapter.9"), part); //$NON-NLS-1$
 232 //                              return;
 233 //                      }
 234 //                      // add or remove the breakpoint
 235 //                      IBreakpointManager breakpointManager= DebugPlugin.getDefault().getBreakpointManager();
 236 //                      for (int i= 0, length= members.length; i < length; i++) {
 237 //                              IMethod method= members[i];
 238 //                              IJavaBreakpoint breakpoint= getBreakpoint(method);
 239 //                              if (breakpoint == null) {
 240 //                                      // add breakpoint
 241 //                                      int start = -1;
 242 //                                      int end = -1;
 243 //                                      ISourceRange range = method.getNameRange();
 244 //                                      if (range != null) {
 245 //                                              start = range.getOffset();
 246 //                                              end = start + range.getLength();
 247 //                                      }
 248 //                                      Map attributes = new HashMap(10);
 249 //                                      BreakpointUtils.addJavaBreakpointAttributes(attributes, method);
 250 //                                      String methodName = method.getElementName();
 251 //                                      if (method.isConstructor()) {
 252 //                                              methodName = "<init>"; //$NON-NLS-1$
 253 //                                      }
 254 //                                      IType type= method.getDeclaringType();
 255 //                                      String methodSignature= method.getSignature();
 256 //                                      if (!type.isBinary()) {
 257 //                                              //resolve the type names
 258 //                                              methodSignature= resolveMethodSignature(type, methodSignature);
 259 //                                              if (methodSignature == null) {
 260 //                                                      IStatus status = new Status(IStatus.ERROR, JDIDebugUIPlugin.getUniqueIdentifier(), IStatus.ERROR, "Source method signature could not be resolved", null); //$NON-NLS-1$
 261 //                                                      throw new CoreException(status);
 262 //                                              }
 263 //                                      }
 264 //                                      JDIDebugModel.createMethodBreakpoint(BreakpointUtils.getBreakpointResource(method), type.getFullyQualifiedName(), methodName, methodSignature, true, false, false, -1, start, end, 0, true, attributes);
 265 //                              } else {
 266 //                                      // remove breakpoint
 267 //                                      breakpointManager.removeBreakpoint(breakpoint, true);
 268 //                              }
 269 //                      }
 270 //              }
 271         }
 272
 273         /* (non-Javadoc)
 274          * @see org.eclipse.debug.ui.actions.IToggleBreakpointsTarget#canToggleMethodBreakpoints(org.eclipse.ui.IWorkbenchPart, org.eclipse.jface.viewers.ISelection)
 275          */
 276         public boolean canToggleMethodBreakpoints(IWorkbenchPart part, ISelection selection) {
 277                 if (selection instanceof IStructuredSelection) {
 278                         IStructuredSelection ss = (IStructuredSelection) selection;
 279                         return getMethods(ss).length > 0;
 280                 } else {
 281                         return selection instanceof ITextSelection;
 282                 }
 283         }
 284
 285         protected IMethod[] getMethods(IStructuredSelection selection) {
 286                 if (selection.isEmpty()) {
 287                         return new IMethod[0];
 288                 } else {
 289                         List methods = new ArrayList(selection.size());
 290                         Iterator iterator = selection.iterator();
 291                         while (iterator.hasNext()) {
 292                                 Object thing = iterator.next();
 293                                 try {
 294                                         if (thing instanceof IMethod && !Flags.isAbstract(((IMethod)thing).getFlags())) {
 295                                                 methods.add(thing);
 296                                         }
 297                                 } catch (JavaModelException e) {
 298                                 }
 299                         }
 300                         return (IMethod[]) methods.toArray(new IMethod[methods.size()]);
 301                 }
 302         }
 303
 304 //      protected IField[] getFields(IStructuredSelection selection) {
 305 //              if (selection.isEmpty()) {
 306 //                      return new IField[0];
 307 //              } else {
 308 //                      List fields = new ArrayList(selection.size());
 309 //                      Iterator iterator = selection.iterator();
 310 //                      while (iterator.hasNext()) {
 311 //                              Object thing = iterator.next();
 312 //                              if (thing instanceof IField) {
 313 //                                      fields.add(thing);
 314 //                              } else if (thing instanceof IJavaFieldVariable) {
 315 //                                      IField field= getField((IJavaFieldVariable) thing);
 316 //                                      if (field != null) {
 317 //                                              fields.add(field);
 318 //                                      }
 319 //                              }
 320 //                      }
 321 //                      return (IField[]) fields.toArray(new IField[fields.size()]);
 322 //              }
 323 //      }
 324
 325         /* (non-Javadoc)
 326          * @see org.eclipse.debug.ui.actions.IToggleBreakpointsTarget#toggleWatchpoints(org.eclipse.ui.IWorkbenchPart, org.eclipse.jface.viewers.ISelection)
 327          */
 328         public void toggleWatchpoints(IWorkbenchPart part, ISelection selection) throws CoreException {
 329 //              report(null, part);
 330 //              selection = translateToMembers(part, selection);
 331 //              if (selection instanceof ITextSelection) {
 332 //                      ITextSelection textSelection= (ITextSelection) selection;
 333 //                      CompilationUnit compilationUnit= parseCompilationUnit((ITextEditor)part);
 334 //                      if (compilationUnit != null) {
 335 //                              BreakpointFieldLocator locator= new BreakpointFieldLocator(textSelection.getOffset());
 336 //                              compilationUnit.accept(locator);
 337 //                              String fieldName= locator.getFieldName();
 338 //                              if (fieldName == null) {
 339 //                                      report(ActionMessages.getString("ManageWatchpointActionDelegate.CantAdd"), part); //$NON-NLS-1$
 340 //                                      return;
 341 //                              }
 342 //                              String typeName= locator.getTypeName();
 343 //                              // check if the watchpoint already exists. If yes, remove it
 344 //                              IBreakpointManager breakpointManager= DebugPlugin.getDefault().getBreakpointManager();
 345 //                              IBreakpoint[] breakpoints= breakpointManager.getBreakpoints(JDIDebugModel.getPluginIdentifier());
 346 //                              for (int i= 0; i < breakpoints.length; i++) {
 347 //                                      IBreakpoint breakpoint= breakpoints[i];
 348 //                                      if (breakpoint instanceof IJavaWatchpoint) {
 349 //                                              IJavaWatchpoint watchpoint= (IJavaWatchpoint)breakpoint;
 350 //                                              if (typeName.equals(watchpoint.getTypeName()) && fieldName.equals(watchpoint.getFieldName())) {
 351 //                                                      breakpointManager.removeBreakpoint(watchpoint, true);
 352 //                                                      return;
 353 //                                              }
 354 //                                      }
 355 //                              }
 356 //                              // add the watchpoint
 357 //                              JDIDebugModel.createWatchpoint(getResource((IEditorPart)part), typeName, fieldName, -1, -1, -1, 0, true, new HashMap(10));
 358 //                      }
 359 //              } else if (selection instanceof IStructuredSelection) {
 360 //                      IField[] members = getFields((IStructuredSelection)selection);
 361 //                      if (members.length == 0) {
 362 //                              report(ActionMessages.getString("ToggleBreakpointAdapter.10"), part); //$NON-NLS-1$
 363 //                              return;
 364 //                      }
 365 //                      // add or remove watchpoint
 366 //                      IBreakpointManager breakpointManager= DebugPlugin.getDefault().getBreakpointManager();
 367 //                      for (int i= 0, length= members.length; i < length; i++) {
 368 //                              IField element= members[i];
 369 //                              IJavaBreakpoint breakpoint= getBreakpoint(element);
 370 //                              if (breakpoint == null) {
 371 //                                      IType type = element.getDeclaringType();
 372 //                                      int start = -1;
 373 //                                      int end = -1;
 374 //                                      ISourceRange range = element.getNameRange();
 375 //                                      if (range != null) {
 376 //                                              start = range.getOffset();
 377 //                                              end = start + range.getLength();
 378 //                                      }
 379 //                                      Map attributes = new HashMap(10);
 380 //                                      BreakpointUtils.addJavaBreakpointAttributes(attributes, element);
 381 //                                      JDIDebugModel.createWatchpoint(BreakpointUtils.getBreakpointResource(type), type.getFullyQualifiedName(), element.getElementName(), -1, start, end, 0, true, attributes);
 382 //                              } else {
 383 //                                      // remove breakpoint
 384 //                                      breakpointManager.removeBreakpoint(breakpoint, true);
 385 //                              }
 386 //                      }
 387 //              }
 388         }
 389
 390         public static String resolveMethodSignature(IType type, String methodSignature) throws JavaModelException {
 391                 String[] parameterTypes= Signature.getParameterTypes(methodSignature);
 392                 int length= length= parameterTypes.length;
 393                 String[] resolvedParameterTypes= new String[length];
 394
 395                 for (int i = 0; i < length; i++) {
 396                         resolvedParameterTypes[i]= resolveType(type, parameterTypes[i]);
 397                         if (resolvedParameterTypes[i] == null) {
 398                                 return null;
 399                         }
 400                 }
 401
 402                 String resolvedReturnType= resolveType(type, Signature.getReturnType(methodSignature));
 403                 if (resolvedReturnType == null) {
 404                         return null;
 405                 }
 406
 407                 return Signature.createMethodSignature(resolvedParameterTypes, resolvedReturnType);
 408         }
 409
 410         private static String resolveType(IType type, String typeSignature) throws JavaModelException {
 411 //              int count= Signature.getArrayCount(typeSignature);
 412 //              String elementTypeSignature= Signature.getElementType(typeSignature);
 413 //              if (elementTypeSignature.length() == 1) {
 414 //                      // no need to resolve primitive types
 415 //                      return typeSignature;
 416 //              }
 417 //              String elementTypeName= Signature.toString(elementTypeSignature);
 418 //              String[][] resolvedElementTypeNames= type.resolveType(elementTypeName);
 419 //              if (resolvedElementTypeNames == null || resolvedElementTypeNames.length != 1) {
 420 //                      // the type name cannot be resolved
 421 //                      return null;
 422 //              }
 423 //              String resolvedElementTypeName= Signature.toQualifiedName(resolvedElementTypeNames[0]);
 424 //              String resolvedElementTypeSignature= Signature.createTypeSignature(resolvedElementTypeName, true).replace('.', '/');
 425 //              return Signature.createArraySignature(resolvedElementTypeSignature, count);
 426                 return "";
 427         }
 428
 429         protected static IResource getResource(IEditorPart editor) {
 430                 IResource resource;
 431                 IEditorInput editorInput = editor.getEditorInput();
 432                 if (editorInput instanceof IFileEditorInput) {
 433                         resource= ((IFileEditorInput)editorInput).getFile();
 434                 } else {
 435                         resource= ResourcesPlugin.getWorkspace().getRoot();
 436                 }
 437                 return resource;
 438         }
 439
 440         /**
 441          * Returns a handle to the specified method or <code>null</code> if none.
 442          *
 443          * @param editorPart the editor containing the method
 444          * @param typeName
 445          * @param methodName
 446          * @param signature
 447          * @return handle or <code>null</code>
 448          */
 449         protected IMethod getMethodHandle(IEditorPart editorPart, String typeName, String methodName, String signature) throws CoreException {
 450                 IJavaElement element = (IJavaElement) editorPart.getEditorInput().getAdapter(IJavaElement.class);
 451                 IType type = null;
 452                 if (element instanceof ICompilationUnit) {
 453                         IType[] types = ((ICompilationUnit)element).getAllTypes();
 454                         for (int i = 0; i < types.length; i++) {
 455                                 if (types[i].getFullyQualifiedName().equals(typeName)) {
 456                                         type = types[i];
 457                                         break;
 458                                 }
 459                         }
 460                 }
 461 //              else if (element instanceof IClassFile) {
 462 //                      type = ((IClassFile)element).getType();
 463 //              }
 464                 if (type != null) {
 465                         String[] sigs = Signature.getParameterTypes(signature);
 466                         return type.getMethod(methodName, sigs);
 467                 }
 468                 return null;
 469         }
 470
 471 //      protected IJavaBreakpoint getBreakpoint(IMember element) {
 472 //              IBreakpointManager breakpointManager= DebugPlugin.getDefault().getBreakpointManager();
 473 //              IBreakpoint[] breakpoints= breakpointManager.getBreakpoints(JDIDebugModel.getPluginIdentifier());
 474 //              if (element instanceof IMethod) {
 475 //                      IMethod method= (IMethod)element;
 476 //                      for (int i= 0; i < breakpoints.length; i++) {
 477 //                              IBreakpoint breakpoint= breakpoints[i];
 478 //                              if (breakpoint instanceof IJavaMethodBreakpoint) {
 479 //                                      IJavaMethodBreakpoint methodBreakpoint= (IJavaMethodBreakpoint)breakpoint;
 480 //                                      IMember container = null;
 481 //                                      try {
 482 //                                              container= BreakpointUtils.getMember(methodBreakpoint);
 483 //                                      } catch (CoreException e) {
 484 //                                              JDIDebugUIPlugin.log(e);
 485 //                                              return null;
 486 //                                      }
 487 //                                      if (container == null) {
 488 //                                              try {
 489 //                                                      if (method.getDeclaringType().getFullyQualifiedName().equals(methodBreakpoint.getTypeName())
 490 //                                                                      && method.getElementName().equals(methodBreakpoint.getMethodName())
 491 //                                                                      && method.getSignature().equals(methodBreakpoint.getMethodSignature())) {
 492 //                                                              return methodBreakpoint;
 493 //                                                      }
 494 //                                              } catch (CoreException e) {
 495 //                                                      JDIDebugUIPlugin.log(e);
 496 //                                              }
 497 //                                      } else {
 498 //                                              if (container instanceof IMethod) {
 499 //                                                      if (method.getDeclaringType().getFullyQualifiedName().equals(container.getDeclaringType().getFullyQualifiedName())) {
 500 //                                                              if (method.isSimilar((IMethod)container)) {
 501 //                                                                      return methodBreakpoint;
 502 //                                                              }
 503 //                                                      }
 504 //                                              }
 505 //                                      }
 506 //                              }
 507 //                      }
 508 //              } else if (element instanceof IField) {
 509 //                      for (int i= 0; i < breakpoints.length; i++) {
 510 //                              IBreakpoint breakpoint= breakpoints[i];
 511 //                              if (breakpoint instanceof IJavaWatchpoint) {
 512 //                                      try {
 513 //                                              if (equalFields(element, (IJavaWatchpoint)breakpoint))
 514 //                                                      return (IJavaBreakpoint)breakpoint;
 515 //                                      } catch (CoreException e) {
 516 //                                              JDIDebugUIPlugin.log(e);
 517 //                                      }
 518 //                              }
 519 //                      }
 520 //              }
 521 //              return null;
 522 //      }
 523
 524         /**
 525          * Compare two fields. The default <code>equals()</code>
 526          * method for <code>IField</code> doesn't give the comparison desired.
 527          */
 528 //      private boolean equalFields(IMember breakpointField, IJavaWatchpoint watchpoint) throws CoreException {
 529 //              return (breakpointField.getElementName().equals(watchpoint.getFieldName()) &&
 530 //              breakpointField.getDeclaringType().getFullyQualifiedName().equals(watchpoint.getTypeName()));
 531 //      }
 532 //
 533 //      protected CompilationUnit parseCompilationUnit(ITextEditor editor) {
 534 //              IEditorInput editorInput = editor.getEditorInput();
 535 //              IDocument document= editor.getDocumentProvider().getDocument(editorInput);
 536 //              ASTParser parser = ASTParser.newParser(AST.JLS2);
 537 //              parser.setSource(document.get().toCharArray());
 538 //              return (CompilationUnit) parser.createAST(null);
 539 //      }
 540
 541         /* (non-Javadoc)
 542          * @see org.eclipse.debug.ui.actions.IToggleBreakpointsTarget#canToggleWatchpoints(org.eclipse.ui.IWorkbenchPart, org.eclipse.jface.viewers.ISelection)
 543          */
 544         public boolean canToggleWatchpoints(IWorkbenchPart part, ISelection selection) {
 545 //              if (selection instanceof IStructuredSelection) {
 546 //                      IStructuredSelection ss = (IStructuredSelection) selection;
 547 //                      return getFields(ss).length > 0;
 548 //              } else {
 549 //                      return selection instanceof ITextSelection;
 550 //              }
 551                 return false;
 552         }
 553
 554         /**
 555          * Returns a selection of the member in the given text selection,
 556          * or the original selection if none.
 557          *
 558          * @param part
 559          * @param selection
 560          * @return a structured selection of the member in the given text selection,
 561          * or the original selection if none
 562          * @exception CoreException if an exceptoin occurrs
 563          */
 564 //      protected ISelection translateToMembers(IWorkbenchPart part, ISelection selection) throws CoreException {
 565 //              if (selection instanceof ITextSelection && part instanceof IEditorPart) {
 566 //                      ITextSelection textSelection = (ITextSelection)selection;
 567 //                      IEditorPart editorPart = (IEditorPart) part;
 568 //                      IEditorInput editorInput = editorPart.getEditorInput();
 569 //                      IMember m= null;
 570 //                      IClassFile classFile= (IClassFile)editorInput.getAdapter(IClassFile.class);
 571 //                      if (classFile != null) {
 572 //                              IJavaElement e= classFile.getElementAt(textSelection.getOffset());
 573 //                              if (e instanceof IMember) {
 574 //                                      m= (IMember)e;
 575 //                              }
 576 //                      } else {
 577 //                              IWorkingCopyManager manager= JavaUI.getWorkingCopyManager();
 578 //                              ICompilationUnit unit= manager.getWorkingCopy(editorInput);
 579 //                              if (unit != null) {
 580 //                                      synchronized (unit) {
 581 //                                              unit.reconcile(ICompilationUnit.NO_AST /*don't create ast*/, false/*don't force problem detection*/, null/*use primary owner*/, null/*no progress monitor*/);
 582 //                                      }
 583 //                                      IJavaElement e = unit.getElementAt(textSelection.getOffset());
 584 //                                      if (e instanceof IMember) {
 585 //                                              m= (IMember)e;
 586 //                                      }
 587 //                              }
 588 //                      }
 589 //                      if (m != null) {
 590 //                              return new StructuredSelection(m);
 591 //                      }
 592 //              }
 593 //              return selection;
 594 //      }
 595
 596         /**
 597          * Returns a list of matching types (IType - Java model) that correspond to the
 598          * declaring type (ReferenceType - JDI model) of the given variable.
 599          */
 600 //      protected static List searchForDeclaringType(IJavaFieldVariable variable) {
 601 //              List types= new ArrayList();
 602 //              ILaunch launch = variable.getDebugTarget().getLaunch();
 603 //              if (launch == null) {
 604 //                      return types;
 605 //              }
 606 //
 607 //              ILaunchConfiguration configuration= launch.getLaunchConfiguration();
 608 //              IJavaProject[] javaProjects = null;
 609 //              IWorkspace workspace= ResourcesPlugin.getWorkspace();
 610 //              if (configuration != null) {
 611 //                      // Launch configuration support
 612 //                      try {
 613 //                              String projectName= configuration.getAttribute(IJavaLaunchConfigurationConstants.ATTR_PROJECT_NAME, ""); //$NON-NLS-1$
 614 //                              if (projectName.length() != 0) {
 615 //                                      javaProjects= new IJavaProject[] {JavaCore.create(workspace.getRoot().getProject(projectName))};
 616 //                              } else {
 617 //                                      IProject[] projects= ResourcesPlugin.getWorkspace().getRoot().getProjects();
 618 //                                      IProject project;
 619 //                                      List projectList= new ArrayList();
 620 //                                      for (int i= 0, numProjects= projects.length; i < numProjects; i++) {
 621 //                                              project= projects[i];
 622 //                                              if (project.isAccessible() && project.hasNature(JavaCore.NATURE_ID)) {
 623 //                                                      projectList.add(JavaCore.create(project));
 624 //                                              }
 625 //                                      }
 626 //                                      javaProjects= new IJavaProject[projectList.size()];
 627 //                                      projectList.toArray(javaProjects);
 628 //                              }
 629 //                      } catch (CoreException e) {
 630 //                              JDIDebugUIPlugin.log(e);
 631 //                      }
 632 //              }
 633 //              if (javaProjects == null) {
 634 //                      return types;
 635 //              }
 636 //
 637 //              SearchEngine engine= new SearchEngine();
 638 //              IJavaSearchScope scope= SearchEngine.createJavaSearchScope(javaProjects, true);
 639 //              String declaringType= null;
 640 //              try {
 641 //                      declaringType= variable.getDeclaringType().getName();
 642 //              } catch (DebugException x) {
 643 //                      JDIDebugUIPlugin.log(x);
 644 //                      return types;
 645 //              }
 646 //              ArrayList typeRefsFound= new ArrayList(3);
 647 //              ITypeNameRequestor requestor= new TypeInfoRequestor(typeRefsFound);
 648 //              try {
 649 //                      engine.searchAllTypeNames(
 650 //                              getPackage(declaringType),
 651 //                              getTypeName(declaringType),
 652 //                              SearchPattern.R_EXACT_MATCH | SearchPattern.R_CASE_SENSITIVE,
 653 //                              IJavaSearchConstants.CLASS,
 654 //                              scope,
 655 //                              requestor,
 656 //                              IJavaSearchConstants.WAIT_UNTIL_READY_TO_SEARCH,
 657 //                              null);
 658 //              } catch (JavaModelException x) {
 659 //                      JDIDebugUIPlugin.log(x);
 660 //                      return types;
 661 //              }
 662 //              Iterator iter= typeRefsFound.iterator();
 663 //              TypeInfo typeInfo= null;
 664 //              while (iter.hasNext()) {
 665 //                      typeInfo= (TypeInfo)iter.next();
 666 //                      try {
 667 //                              types.add(typeInfo.resolveType(scope));
 668 //                      } catch (JavaModelException jme) {
 669 //                              JDIDebugUIPlugin.log(jme);
 670 //                      }
 671 //              }
 672 //              return types;
 673 //      }
 674
 675         /**
 676          * Returns the package name of the given fully qualified type name.
 677          * The package name is assumed to be the dot-separated prefix of the
 678          * type name.
 679          */
 680 //      protected static char[] getPackage(String fullyQualifiedName) {
 681 //              int index= fullyQualifiedName.lastIndexOf('.');
 682 //              if (index == -1) {
 683 //                      return new char[0];
 684 //              }
 685 //              return fullyQualifiedName.substring(0, index).toCharArray();
 686 //      }
 687 //
 688 //      /**
 689 //       * Returns a simple type name from the given fully qualified type name.
 690 //       * The type name is assumed to be the last contiguous segment of the
 691 //       * fullyQualifiedName not containing a '.' or '$'
 692 //       */
 693 //      protected static char[] getTypeName(String fullyQualifiedName) {
 694 //              int index= fullyQualifiedName.lastIndexOf('.');
 695 //              String typeName= fullyQualifiedName.substring(index + 1);
 696 //              int lastInnerClass= typeName.lastIndexOf('$');
 697 //              if (lastInnerClass != -1) {
 698 //                      typeName= typeName.substring(lastInnerClass + 1);
 699 //              }
 700 //              return typeName.toCharArray();
 701 //      }
 702 //
 703 //      /**
 704 //       * Return the associated IField (Java model) for the given
 705 //       * IJavaFieldVariable (JDI model)
 706 //       */
 707 //      private IField getField(IJavaFieldVariable variable) {
 708 //              String varName= null;
 709 //              try {
 710 //                      varName= variable.getName();
 711 //              } catch (DebugException x) {
 712 //                      JDIDebugUIPlugin.log(x);
 713 //                      return null;
 714 //              }
 715 //              IField field;
 716 //              List types= searchForDeclaringType(variable);
 717 //              Iterator iter= types.iterator();
 718 //              while (iter.hasNext()) {
 719 //                      IType type= (IType)iter.next();
 720 //                      field= type.getField(varName);
 721 //                      if (field.exists()) {
 722 //                              return field;
 723 //                      }
 724 //              }
 725 //              return null;
 726 //      }
 727 }