net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/ui/text/template/AbstractProposal.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 net.sourceforge.phpdt.internal.corext.template.TemplateMessages;
   8 import net.sourceforge.phpdt.internal.ui.text.java.IPHPCompletionProposal;
   9 import net.sourceforge.phpeclipse.PHPeclipsePlugin;
  10
  11 import org.eclipse.core.runtime.CoreException;
  12 import org.eclipse.jface.dialogs.MessageDialog;
  13 import org.eclipse.jface.text.BadLocationException;
  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.contentassist.ContextInformation;
  18 import org.eclipse.jface.text.contentassist.IContextInformation;
  19 import org.eclipse.swt.graphics.Point;
  20 import org.eclipse.swt.widgets.Shell;
  21
  22
  23 /**
  24  * A PHP identifier proposal.
  25  */
  26 public abstract class AbstractProposal implements IPHPCompletionProposal {
  27         protected IRegion fSelectedRegion; // initialized by apply()
  28
  29         protected final ITextViewer fViewer;
  30
  31         protected ContextInformation fContextInfo;
  32
  33         public AbstractProposal(ITextViewer viewer) {
  34                 fContextInfo = null;
  35                 fViewer = viewer;
  36         }
  37
  38         protected static String textToHTML(String string) {
  39                 StringBuffer buffer = new StringBuffer(string.length());
  40                 buffer.append("<pre>"); //$NON-NLS-1$
  41
  42                 for (int i = 0; i != string.length(); i++) {
  43                         char ch = string.charAt(i);
  44
  45                         switch (ch) {
  46                         case '&':
  47                                 buffer.append("&amp;"); //$NON-NLS-1$
  48                                 break;
  49
  50                         case '<':
  51                                 buffer.append("&lt;"); //$NON-NLS-1$
  52                                 break;
  53
  54                         case '>':
  55                                 buffer.append("&gt;"); //$NON-NLS-1$
  56                                 break;
  57
  58                         case '\t':
  59                                 buffer.append("    "); //$NON-NLS-1$
  60                                 break;
  61
  62                         case '\n':
  63                                 buffer.append("<br>"); //$NON-NLS-1$
  64                                 break;
  65
  66                         default:
  67                                 buffer.append(ch);
  68                                 break;
  69                         }
  70                 }
  71
  72                 buffer.append("</pre>"); //$NON-NLS-1$
  73                 return buffer.toString();
  74         }
  75
  76         /*
  77          * @see ICompletionProposal#getSelection(IDocument)
  78          */
  79         public Point getSelection(IDocument document) {
  80                 return new Point(fSelectedRegion.getOffset(), fSelectedRegion
  81                                 .getLength());
  82         }
  83
  84         protected void handleException(CoreException e) {
  85                 PHPeclipsePlugin.log(e);
  86         }
  87
  88         protected void openErrorDialog(BadLocationException e) {
  89                 Shell shell = fViewer.getTextWidget().getShell();
  90                 MessageDialog.openError(shell, TemplateMessages
  91                                 .getString("TemplateEvaluator.error.title"), e.getMessage()); //$NON-NLS-1$
  92         }
  93
  94         public IContextInformation getContextInformation() {
  95                 return null;
  96         }
  97
  98 }