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

   1 package net.sourceforge.phpdt.internal.ui.text.template;
   2
   3 import net.sourceforge.phpdt.internal.corext.template.TemplateMessages;
   4 import net.sourceforge.phpdt.internal.corext.template.php.JavaContext;
   5 import net.sourceforge.phpdt.internal.ui.text.link.LinkedPositionManager;
   6 import net.sourceforge.phpdt.internal.ui.text.link.LinkedPositionUI;
   7 import net.sourceforge.phpeclipse.PHPeclipsePlugin;
   8
   9 import org.eclipse.jface.text.BadLocationException;
  10 import org.eclipse.jface.text.IDocument;
  11 import org.eclipse.jface.text.IRegion;
  12 import org.eclipse.jface.text.ITextViewer;
  13 import org.eclipse.jface.text.templates.TemplateContext;
  14 import org.eclipse.swt.graphics.Image;
  15
  16 /**
  17  * A PHP identifier proposal.
  18  */
  19 public class IdentifierProposal extends AbstractProposal {
  20         private final TemplateContext fContext;
  21
  22         private final Image fImage_fun;
  23
  24         private final Image fImage_var;
  25
  26         // private TemplateBuffer fTemplateBuffer;
  27         private String fOldText;
  28
  29         private final IRegion fRegion;
  30
  31         // private IRegion fSelectedRegion; // initialized by apply()
  32         private final String fTemplate;
  33
  34         public IdentifierProposal(String template, TemplateContext context,
  35                         IRegion region, ITextViewer viewer, Image image_fun, Image image_var) {
  36                 super(viewer);
  37                 fTemplate = template;
  38                 fContext = context;
  39
  40                 // fViewer = viewer;
  41                 fImage_fun = image_fun;
  42                 fImage_var = image_var;
  43                 fRegion = region;
  44         }
  45
  46         public void apply(IDocument document) {
  47                 try {
  48                         int start = fRegion.getOffset();
  49                         int end = fRegion.getOffset() + fRegion.getLength();
  50                         document.replace(start, end - start, fTemplate);
  51                         // translate positions
  52                         LinkedPositionManager manager = new LinkedPositionManager(document);
  53
  54                         LinkedPositionUI editor = new LinkedPositionUI(fViewer, manager);
  55                         editor.setFinalCaretOffset(fTemplate.length() + start);
  56                         // editor.setFinalCaretOffset(getCaretOffset(fTemplateBuffer) +
  57                         // start);
  58                         editor.enter();
  59                         fSelectedRegion = editor.getSelectedRegion();
  60                 } catch (BadLocationException e) {
  61                         PHPeclipsePlugin.log(e);
  62                         openErrorDialog(e);
  63                 }
  64         }
  65
  66         public String getAdditionalProposalInfo() {
  67                 return textToHTML(fTemplate); // fTemplateBuffer.getString());
  68         }
  69
  70         public String getDisplayString() {
  71                 return fTemplate
  72                                 + TemplateMessages.getString("TemplateProposal.delimiter")
  73                                 + fTemplate; // $NON-NLS-1$
  74         }
  75
  76         public Image getImage() {
  77                 if (fTemplate.charAt(0) == '$') {
  78                         return fImage_var;
  79                 }
  80                 return fImage_fun;
  81         }
  82
  83         public int getRelevance() {
  84                 if (fContext instanceof JavaContext) {
  85                         JavaContext context = (JavaContext) fContext;
  86                         switch (context.getCharacterBeforeStart()) {
  87                         // high relevance after whitespace
  88                         case ' ':
  89                         case '\r':
  90                         case '\n':
  91                         case '\t':
  92                                 return 50;
  93                         default:
  94                                 return 0;
  95                         }
  96                 } else {
  97                         return 50;
  98                 }
  99         }
 100 }