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 java.util.WeakHashMap;
   8
   9 import net.sourceforge.phpdt.internal.corext.template.TemplateMessages;
  10 import net.sourceforge.phpdt.internal.ui.text.java.IPHPCompletionProposal;
  11 import net.sourceforge.phpeclipse.PHPeclipsePlugin;
  12
  13 import org.eclipse.core.runtime.CoreException;
  14 import org.eclipse.jface.dialogs.MessageDialog;
  15 import org.eclipse.jface.text.BadLocationException;
  16 import org.eclipse.jface.text.IDocument;
  17 import org.eclipse.jface.text.IRegion;
  18 import org.eclipse.jface.text.ITextViewer;
  19 import org.eclipse.jface.text.contentassist.ContextInformation;
  20 import org.eclipse.jface.text.contentassist.IContextInformation;
  21 import org.eclipse.swt.graphics.Point;
  22 import org.eclipse.swt.widgets.Shell;
  23
  24
  25 /**
  26  * A PHP identifier proposal.
  27  */
  28 public abstract class AbstractProposal implements IPHPCompletionProposal {
  29         protected IRegion fSelectedRegion; // initialized by apply()
  30
  31         protected final ITextViewer fViewer;
  32
  33         protected ContextInformation fContextInfo;
  34
  35         public AbstractProposal(ITextViewer viewer) {
  36                 fContextInfo = null;
  37                 fViewer = viewer;
  38         }
  39
  40         protected static String textToHTML(String string) {
  41                 StringBuffer buffer = new StringBuffer(string.length());
  42                 buffer.append("<pre>"); //$NON-NLS-1$
  43
  44                 for (int i = 0; i != string.length(); i++) {
  45                         char ch = string.charAt(i);
  46
  47                         switch (ch) {
  48                         case '&':
  49                                 buffer.append("&amp;"); //$NON-NLS-1$
  50                                 break;
  51
  52                         case '<':
  53                                 buffer.append("&lt;"); //$NON-NLS-1$
  54                                 break;
  55
  56                         case '>':
  57                                 buffer.append("&gt;"); //$NON-NLS-1$
  58                                 break;
  59
  60                         case '\t':
  61                                 buffer.append("    "); //$NON-NLS-1$
  62                                 break;
  63
  64                         case '\n':
  65                                 buffer.append("<br>"); //$NON-NLS-1$
  66                                 break;
  67
  68                         default:
  69                                 buffer.append(ch);
  70                                 break;
  71                         }
  72                 }
  73
  74                 buffer.append("</pre>"); //$NON-NLS-1$
  75                 return buffer.toString();
  76         }
  77
  78         /*
  79          * @see ICompletionProposal#getSelection(IDocument)
  80          */
  81         public Point getSelection(IDocument document) {
  82                 return new Point(fSelectedRegion.getOffset(), fSelectedRegion
  83                                 .getLength());
  84         }
  85
  86         protected void handleException(CoreException e) {
  87                 PHPeclipsePlugin.log(e);
  88         }
  89
  90         protected void openErrorDialog(BadLocationException e) {
  91                 Shell shell = fViewer.getTextWidget().getShell();
  92                 MessageDialog.openError(shell, TemplateMessages
  93                                 .getString("TemplateEvaluator.error.title"), e.getMessage()); //$NON-NLS-1$
  94         }
  95
  96         public IContextInformation getContextInformation() {
  97                 return null;
  98         }
  99
 100 }