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.CompilationUnitContextType;
  11 import net.sourceforge.phpdt.internal.corext.template.php.PHPUnitContext;
  12 import net.sourceforge.phpdt.internal.ui.PHPUiImages;
  13 import net.sourceforge.phpdt.internal.ui.text.java.IPHPCompletionProposal;
  14
  15 import org.eclipse.jface.text.IDocument;
  16 import org.eclipse.jface.text.IRegion;
  17 import org.eclipse.jface.text.ITextViewer;
  18 import org.eclipse.jface.text.Region;
  19 //import org.eclipse.jdt.internal.ui.text.link.LinkedPositionManager;
  20
  21 public class BuiltInEngine {
  22
  23         /** The context type. */
  24         private ContextType fContextType;
  25         /** The result proposals. */
  26         private ArrayList fProposals= new ArrayList();
  27
  28         /**
  29          * Creates the template engine for a particular context type.
  30          * See <code>TemplateContext</code> for supported context types.
  31          */
  32         public BuiltInEngine(ContextType contextType) {
  33         //      Assert.isNotNull(contextType);
  34                 fContextType= contextType;
  35         }
  36
  37         /**
  38          * Empties the collector.
  39          *
  40          * @param viewer the text viewer
  41          * @param unit   the compilation unit (may be <code>null</code>)
  42          */
  43         public void reset() {
  44                 fProposals.clear();
  45         }
  46
  47         /**
  48          * Returns the array of matching templates.
  49          */
  50         public IPHPCompletionProposal[] getResults() {
  51                 return (IPHPCompletionProposal[]) fProposals.toArray(new IPHPCompletionProposal[fProposals.size()]);
  52         }
  53
  54         /**
  55          * Inspects the context of the compilation unit around <code>completionPosition</code>
  56          * and feeds the collector with proposals.
  57          * @param viewer the text viewer
  58          * @param completionPosition the context position in the document of the text viewer
  59          * @param compilationUnit the compilation unit (may be <code>null</code>)
  60          */
  61         public void complete(ITextViewer viewer, int completionPosition, Object[] identifiers)
  62   //,ICompilationUnit compilationUnit)
  63         //hrows JavaModelException
  64         {
  65             IDocument document= viewer.getDocument();
  66
  67                 // prohibit recursion
  68 //              if (LinkedPositionManager.hasActiveManager(document))
  69 //                      return;
  70
  71                 if (!(fContextType instanceof CompilationUnitContextType))
  72                         return;
  73
  74                 ((CompilationUnitContextType) fContextType).setContextParameters(document, completionPosition);//mpilationUnit);
  75                 PHPUnitContext context= (PHPUnitContext) fContextType.createContext();
  76                 int start= context.getStart();
  77                 int end= context.getEnd();
  78                 IRegion region= new Region(start, end - start);
  79
  80 //              Template[] templates= Templates.getInstance().getTemplates();
  81     String identifier = null;
  82                 for (int i= 0; i != identifiers.length; i++) {
  83       identifier = (String) identifiers[i];
  84                         if (context.canEvaluate(identifier)) {
  85                                 fProposals.add(new BuiltInProposal(identifier, context, region, viewer, PHPUiImages.get(PHPUiImages.IMG_BUILTIN)));
  86       }
  87     }
  88         }
  89
  90 }
  91