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