net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/ui/text/template/BuiltInEngine.java

   1 /*
   2  * (c) Copyright IBM Corp. 2000, 2001.
   3  * All Rights Reserved.
   4  */
   5 package net.sourceforge.phpdt.internal.ui.text.template;
   6
   7 import java.util.ArrayList;
   8
   9 import net.sourceforge.phpdt.internal.corext.template.ContextType;
  10 import net.sourceforge.phpdt.internal.corext.template.php.PHPUnitContext;
  11 import net.sourceforge.phpdt.internal.corext.template.php.CompilationUnitContextType;
  12 import net.sourceforge.phpdt.internal.ui.PHPUiImages;
  13 import net.sourceforge.phpdt.internal.ui.text.java.IPHPCompletionProposal;
  14 import org.eclipse.jface.text.IDocument;
  15 import org.eclipse.jface.text.IRegion;
  16 import org.eclipse.jface.text.ITextViewer;
  17 import org.eclipse.jface.text.Region;
  18 //import org.eclipse.jdt.internal.ui.text.link.LinkedPositionManager;
  19
  20 public class BuiltInEngine {
  21
  22         /** The context type. */
  23         private ContextType fContextType;
  24         /** The result proposals. */
  25         private ArrayList fProposals= new ArrayList();
  26
  27         /**
  28          * Creates the template engine for a particular context type.
  29          * See <code>TemplateContext</code> for supported context types.
  30          */
  31         public BuiltInEngine(ContextType contextType) {
  32         //      Assert.isNotNull(contextType);
  33                 fContextType= contextType;
  34         }
  35
  36         /**
  37          * Empties the collector.
  38          *
  39          * @param viewer the text viewer
  40          * @param unit   the compilation unit (may be <code>null</code>)
  41          */
  42         public void reset() {
  43                 fProposals.clear();
  44         }
  45
  46         /**
  47          * Returns the array of matching templates.
  48          */
  49         public IPHPCompletionProposal[] getResults() {
  50                 return (IPHPCompletionProposal[]) fProposals.toArray(new IPHPCompletionProposal[fProposals.size()]);
  51         }
  52
  53         /**
  54          * Inspects the context of the compilation unit around <code>completionPosition</code>
  55          * and feeds the collector with proposals.
  56          * @param viewer the text viewer
  57          * @param completionPosition the context position in the document of the text viewer
  58          * @param compilationUnit the compilation unit (may be <code>null</code>)
  59          */
  60         public void complete(ITextViewer viewer, int completionPosition, Object[] identifiers)
  61   //,ICompilationUnit compilationUnit)
  62         //hrows JavaModelException
  63         {
  64             IDocument document= viewer.getDocument();
  65
  66                 // prohibit recursion
  67 //              if (LinkedPositionManager.hasActiveManager(document))
  68 //                      return;
  69
  70                 if (!(fContextType instanceof CompilationUnitContextType))
  71                         return;
  72
  73                 ((CompilationUnitContextType) fContextType).setContextParameters(document, completionPosition);//mpilationUnit);
  74                 PHPUnitContext context= (PHPUnitContext) fContextType.createContext();
  75                 int start= context.getStart();
  76                 int end= context.getEnd();
  77                 IRegion region= new Region(start, end - start);
  78
  79 //              Template[] templates= Templates.getInstance().getTemplates();
  80     String identifier = null;
  81                 for (int i= 0; i != identifiers.length; i++) {
  82       identifier = (String) identifiers[i];
  83                         if (context.canEvaluate(identifier)) {
  84                                 fProposals.add(new BuiltInProposal(identifier, context, region, viewer, PHPUiImages.get(PHPUiImages.IMG_BUILTIN)));
  85       }
  86     }
  87         }
  88
  89 }
  90