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   1 /*******************************************************************************
   2  * Copyright (c) 2000, 2003 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
  12 package net.sourceforge.phpdt.internal.ui.text.spelling;
  13
  14 import java.net.URL;
  15 import java.util.StringTokenizer;
  16
  17 import net.sourceforge.phpdt.core.JavaCore;
  18 import net.sourceforge.phpdt.internal.ui.text.spelling.engine.AbstractSpellDictionary;
  19
  20 import org.eclipse.core.runtime.Plugin;
  21 import org.eclipse.core.runtime.Preferences.IPropertyChangeListener;
  22 import org.eclipse.core.runtime.Preferences.PropertyChangeEvent;
  23
  24 /**
  25  * Dictionary for task tags.
  26  *
  27  * @since 3.0
  28  */
  29 public class TaskTagDictionary extends AbstractSpellDictionary implements IPropertyChangeListener {
  30
  31         /*
  32          * @see org.eclipse.jdt.internal.ui.text.spelling.engine.AbstractSpellDictionary#getName()
  33          */
  34         protected final URL getURL() {
  35                 return null;
  36         }
  37
  38         /*
  39          * @see org.eclipse.jdt.ui.text.spelling.engine.AbstractSpellDictionary#load(java.net.URL)
  40          */
  41         protected boolean load(final URL url) {
  42
  43                 final Plugin plugin= JavaCore.getPlugin();
  44                 if (plugin != null) {
  45
  46                         plugin.getPluginPreferences().addPropertyChangeListener(this);
  47                         return updateTaskTags();
  48                 }
  49                 return false;
  50         }
  51
  52         /*
  53          * @see org.eclipse.core.runtime.Preferences.IPropertyChangeListener#propertyChange(org.eclipse.core.runtime.Preferences.PropertyChangeEvent)
  54          */
  55         public void propertyChange(final PropertyChangeEvent event) {
  56
  57                 if (JavaCore.COMPILER_TASK_TAGS.equals(event.getProperty()))
  58                         updateTaskTags();
  59         }
  60
  61         /*
  62          * @see org.eclipse.jdt.ui.text.spelling.engine.ISpellDictionary#unload()
  63          */
  64         public void unload() {
  65
  66                 final Plugin plugin= JavaCore.getPlugin();
  67                 if (plugin != null)
  68                         plugin.getPluginPreferences().removePropertyChangeListener(this);
  69
  70                 super.unload();
  71         }
  72
  73         /**
  74          * Handles the compiler task tags property change event.
  75          */
  76         protected boolean updateTaskTags() {
  77
  78                 final String tags= JavaCore.getOption(JavaCore.COMPILER_TASK_TAGS);
  79                 if (tags != null) {
  80
  81                         unload();
  82
  83                         final StringTokenizer tokenizer= new StringTokenizer(tags, ","); //$NON-NLS-1$
  84                         while (tokenizer.hasMoreTokens())
  85                                 hashWord(tokenizer.nextToken());
  86
  87                         return true;
  88                 }
  89                 return false;
  90         }
  91 }