net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/ui/actions/RemoveBlockCommentAction.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.ui.actions;
  12
  13 import java.util.LinkedList;
  14 import java.util.List;
  15 import java.util.ResourceBundle;
  16
  17 import org.eclipse.jface.text.BadLocationException;
  18 import org.eclipse.jface.text.BadPartitioningException;
  19 import org.eclipse.jface.text.IDocumentExtension3;
  20 import org.eclipse.jface.text.ITextSelection;
  21 import org.eclipse.jface.text.ITypedRegion;
  22
  23 import org.eclipse.ui.texteditor.ITextEditor;
  24
  25 import net.sourceforge.phpdt.internal.ui.text.IPHPPartitions;
  26
  27 /**
  28  * Action that removes the enclosing comment marks from a Java block comment.
  29  *
  30  * @since 3.0
  31  */
  32 public class RemoveBlockCommentAction extends BlockCommentAction {
  33
  34         /**
  35          * Creates a new instance.
  36          *
  37          * @param bundle the resource bundle
  38          * @param prefix a prefix to be prepended to the various resource keys
  39          *   (described in <code>ResourceAction</code> constructor), or
  40          *   <code>null</code> if none
  41          * @param editor the text editor
  42          */
  43         public RemoveBlockCommentAction(ResourceBundle bundle, String prefix, ITextEditor editor) {
  44                 super(bundle, prefix, editor);
  45         }
  46
  47         /*
  48          * @see net.sourceforge.phpdt.internal.ui.actions.AddBlockCommentAction#runInternal(org.eclipse.jface.text.ITextSelection, org.eclipse.jface.text.IDocumentExtension3, net.sourceforge.phpdt.internal.ui.actions.AddBlockCommentAction.Edit.EditFactory)
  49          */
  50         protected void runInternal(ITextSelection selection, IDocumentExtension3 docExtension, Edit.EditFactory factory) throws BadPartitioningException, BadLocationException {
  51                 List edits= new LinkedList();
  52                 int tokenLength= getCommentStart().length();
  53
  54                 int offset= selection.getOffset();
  55                 int endOffset= offset + selection.getLength();
  56
  57                 ITypedRegion partition= docExtension.getPartition(IPHPPartitions.PHP_PARTITIONING, offset, false);
  58                 int partOffset= partition.getOffset();
  59                 int partEndOffset= partOffset + partition.getLength();
  60
  61                 while (partEndOffset < endOffset) {
  62
  63                         if (partition.getType() == IPHPPartitions.PHP_MULTILINE_COMMENT) {
  64                                 edits.add(factory.createEdit(partOffset, tokenLength, "")); //$NON-NLS-1$
  65                                 edits.add(factory.createEdit(partEndOffset - tokenLength, tokenLength, "")); //$NON-NLS-1$
  66                         }
  67
  68                         partition= docExtension.getPartition(IPHPPartitions.PHP_PARTITIONING, partEndOffset, false);
  69                         partOffset= partition.getOffset();
  70                         partEndOffset= partOffset + partition.getLength();
  71                 }
  72
  73                 if (partition.getType() == IPHPPartitions.PHP_MULTILINE_COMMENT) {
  74                         edits.add(factory.createEdit(partOffset, tokenLength, "")); //$NON-NLS-1$
  75                         edits.add(factory.createEdit(partEndOffset - tokenLength, tokenLength, "")); //$NON-NLS-1$
  76                 }
  77
  78                 executeEdits(edits);
  79         }
  80
  81         /*
  82          * @see net.sourceforge.phpdt.internal.ui.actions.AddBlockCommentAction#validSelection(org.eclipse.jface.text.ITextSelection)
  83          */
  84         protected boolean isValidSelection(ITextSelection selection) {
  85                 return selection != null && !selection.isEmpty();
  86         }
  87
  88 }