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   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.preferences;
  12
  13 import java.util.Iterator;
  14
  15 import net.sourceforge.phpdt.internal.ui.text.IPHPPartitions;
  16 import net.sourceforge.phpdt.internal.ui.text.JavaWordFinder;
  17 import net.sourceforge.phpdt.internal.ui.text.template.preferences.TemplateVariableProcessor;
  18 import net.sourceforge.phpdt.ui.PreferenceConstants;
  19 import net.sourceforge.phpdt.ui.text.IColorManager;
  20 import net.sourceforge.phpdt.ui.text.JavaTextTools;
  21 import net.sourceforge.phpdt.ui.text.PHPSourceViewerConfiguration;
  22 import net.sourceforge.phpeclipse.PHPeclipsePlugin;
  23
  24 import org.eclipse.jface.preference.IPreferenceStore;
  25 import org.eclipse.jface.preference.PreferenceConverter;
  26 import org.eclipse.jface.text.BadLocationException;
  27 import org.eclipse.jface.text.IDocument;
  28 import org.eclipse.jface.text.IRegion;
  29 import org.eclipse.jface.text.ITextHover;
  30 import org.eclipse.jface.text.ITextViewer;
  31 import org.eclipse.jface.text.contentassist.ContentAssistant;
  32 import org.eclipse.jface.text.contentassist.IContentAssistant;
  33 import org.eclipse.jface.text.source.ISourceViewer;
  34 import org.eclipse.jface.text.templates.TemplateContextType;
  35 import org.eclipse.jface.text.templates.TemplateVariableResolver;
  36 import org.eclipse.swt.graphics.Color;
  37 import org.eclipse.swt.graphics.RGB;
  38 import org.eclipse.ui.texteditor.ITextEditor;
  39
  40 public class TemplateEditorSourceViewerConfiguration extends
  41                 PHPSourceViewerConfiguration {
  42
  43         private static class TemplateVariableTextHover implements ITextHover {
  44
  45                 private TemplateVariableProcessor fProcessor;
  46
  47                 /**
  48                  * @param type
  49                  */
  50                 public TemplateVariableTextHover(TemplateVariableProcessor processor) {
  51                         fProcessor = processor;
  52                 }
  53
  54                 /*
  55                  * (non-Javadoc)
  56                  *
  57                  * @see org.eclipse.jface.text.ITextHover#getHoverInfo(org.eclipse.jface.text.ITextViewer,
  58                  *      org.eclipse.jface.text.IRegion)
  59                  */
  60                 public String getHoverInfo(ITextViewer textViewer, IRegion subject) {
  61                         try {
  62                                 IDocument doc = textViewer.getDocument();
  63                                 int offset = subject.getOffset();
  64                                 if (offset >= 2 && "${".equals(doc.get(offset - 2, 2))) { //$NON-NLS-1$
  65                                         String varName = doc.get(offset, subject.getLength());
  66                                         TemplateContextType contextType = fProcessor
  67                                                         .getContextType();
  68                                         if (contextType != null) {
  69                                                 Iterator iter = contextType.resolvers();
  70                                                 while (iter.hasNext()) {
  71                                                         TemplateVariableResolver var = (TemplateVariableResolver) iter
  72                                                                         .next();
  73                                                         if (varName.equals(var.getType())) {
  74                                                                 return var.getDescription();
  75                                                         }
  76                                                 }
  77                                         }
  78                                 }
  79                         } catch (BadLocationException e) {
  80                         }
  81                         return null;
  82                 }
  83
  84                 /*
  85                  * (non-Javadoc)
  86                  *
  87                  * @see org.eclipse.jface.text.ITextHover#getHoverRegion(org.eclipse.jface.text.ITextViewer,
  88                  *      int)
  89                  */
  90                 public IRegion getHoverRegion(ITextViewer textViewer, int offset) {
  91                         if (textViewer != null) {
  92                                 return JavaWordFinder
  93                                                 .findWord(textViewer.getDocument(), offset);
  94                         }
  95                         return null;
  96                 }
  97
  98         }
  99
 100         private final TemplateVariableProcessor fProcessor;
 101
 102         public TemplateEditorSourceViewerConfiguration(IColorManager colorManager,
 103                         IPreferenceStore store, ITextEditor editor,
 104                         TemplateVariableProcessor processor) {
 105                 super(colorManager, store, editor, IPHPPartitions.PHP_PARTITIONING);
 106                 fProcessor = processor;
 107         }
 108
 109         /*
 110          * @see SourceViewerConfiguration#getContentAssistant(ISourceViewer)
 111          */
 112         public IContentAssistant getContentAssistant(ISourceViewer sourceViewer) {
 113
 114                 IPreferenceStore store = PHPeclipsePlugin.getDefault()
 115                                 .getPreferenceStore();
 116                 JavaTextTools textTools = PHPeclipsePlugin.getDefault()
 117                                 .getJavaTextTools();
 118                 IColorManager manager = textTools.getColorManager();
 119
 120                 ContentAssistant assistant = new ContentAssistant();
 121                 assistant.setContentAssistProcessor(fProcessor,
 122                                 IDocument.DEFAULT_CONTENT_TYPE);
 123                 // Register the same processor for strings and single line comments to
 124                 // get code completion at the start of those partitions.
 125                 assistant.setContentAssistProcessor(fProcessor,
 126                                 IPHPPartitions.PHP_STRING_DQ);
 127                 assistant.setContentAssistProcessor(fProcessor,
 128                                 IPHPPartitions.PHP_STRING_SQ);
 129                 assistant.setContentAssistProcessor(fProcessor,
 130                                 IPHPPartitions.PHP_STRING_HEREDOC);
 131                 assistant.setContentAssistProcessor(fProcessor,
 132                                 IPHPPartitions.PHP_SINGLELINE_COMMENT);
 133                 assistant.setContentAssistProcessor(fProcessor,
 134                                 IPHPPartitions.PHP_MULTILINE_COMMENT);
 135                 assistant.setContentAssistProcessor(fProcessor,
 136                                 IPHPPartitions.PHP_PHPDOC_COMMENT);
 137
 138                 assistant.enableAutoInsert(store
 139                                 .getBoolean(PreferenceConstants.CODEASSIST_AUTOINSERT));
 140                 assistant.enableAutoActivation(store
 141                                 .getBoolean(PreferenceConstants.CODEASSIST_AUTOACTIVATION));
 142                 assistant.setAutoActivationDelay(store
 143                                 .getInt(PreferenceConstants.CODEASSIST_AUTOACTIVATION_DELAY));
 144                 assistant
 145                                 .setProposalPopupOrientation(ContentAssistant.PROPOSAL_OVERLAY);
 146                 assistant
 147                                 .setContextInformationPopupOrientation(ContentAssistant.CONTEXT_INFO_ABOVE);
 148                 assistant
 149                                 .setInformationControlCreator(getInformationControlCreator(sourceViewer));
 150
 151                 Color background = getColor(store,
 152                                 PreferenceConstants.CODEASSIST_PROPOSALS_BACKGROUND, manager);
 153                 assistant.setContextInformationPopupBackground(background);
 154                 assistant.setContextSelectorBackground(background);
 155                 assistant.setProposalSelectorBackground(background);
 156
 157                 Color foreground = getColor(store,
 158                                 PreferenceConstants.CODEASSIST_PROPOSALS_FOREGROUND, manager);
 159                 assistant.setContextInformationPopupForeground(foreground);
 160                 assistant.setContextSelectorForeground(foreground);
 161                 assistant.setProposalSelectorForeground(foreground);
 162
 163                 return assistant;
 164         }
 165
 166         private Color getColor(IPreferenceStore store, String key,
 167                         IColorManager manager) {
 168                 RGB rgb = PreferenceConverter.getColor(store, key);
 169                 return manager.getColor(rgb);
 170         }
 171
 172         /*
 173          * @see SourceViewerConfiguration#getTextHover(ISourceViewer, String, int)
 174          * @since 2.1
 175          */
 176         public ITextHover getTextHover(ISourceViewer sourceViewer,
 177                         String contentType, int stateMask) {
 178                 return new TemplateVariableTextHover(fProcessor);
 179         }
 180
 181 }