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   1 /*******************************************************************************
   2  * Copyright (c) 2000, 2004 IBM Corporation and others.
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Common Public License v1.0
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/cpl-v10.html
   7  *
   8  * Contributors:
   9  *     IBM Corporation - initial API and implementation
  10  *******************************************************************************/
  11 package net.sourceforge.phpdt.internal.ui.text.template.preferences;
  12
  13 //import net.sourceforge.phpeclipse.PHPeclipsePlugin;
  14
  15 import net.sourceforge.phpeclipse.ui.WebUI;
  16
  17 import org.eclipse.jface.dialogs.MessageDialog;
  18 import org.eclipse.jface.text.BadLocationException;
  19 import org.eclipse.jface.text.IDocument;
  20 import org.eclipse.jface.text.ITextViewer;
  21 import org.eclipse.jface.text.contentassist.ICompletionProposal;
  22 import org.eclipse.jface.text.contentassist.IContextInformation;
  23 import org.eclipse.jface.text.templates.TemplateVariableResolver;
  24 import org.eclipse.swt.graphics.Image;
  25 import org.eclipse.swt.graphics.Point;
  26 import org.eclipse.swt.widgets.Shell;
  27
  28 /**
  29  * A proposal for insertion of template variables.
  30  */
  31 public class TemplateVariableProposal implements ICompletionProposal {
  32
  33         private TemplateVariableResolver fVariable;
  34
  35         private int fOffset;
  36
  37         private int fLength;
  38
  39         private ITextViewer fViewer;
  40
  41         private Point fSelection;
  42
  43         /**
  44          * Creates a template variable proposal.
  45          *
  46          * @param variable
  47          *            the template variable
  48          * @param offset
  49          *            the offset to replace
  50          * @param length
  51          *            the length to replace
  52          * @param viewer
  53          *            the viewer
  54          */
  55         public TemplateVariableProposal(TemplateVariableResolver variable,
  56                         int offset, int length, ITextViewer viewer) {
  57                 fVariable = variable;
  58                 fOffset = offset;
  59                 fLength = length;
  60                 fViewer = viewer;
  61         }
  62
  63         /*
  64          * @see ICompletionProposal#apply(IDocument)
  65          */
  66         public void apply(IDocument document) {
  67
  68                 try {
  69                         String variable = fVariable.getType().equals("dollar") ? "$$" : "${" + fVariable.getType() + '}'; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
  70                         document.replace(fOffset, fLength, variable);
  71                         fSelection = new Point(fOffset + variable.length(), 0);
  72
  73                 } catch (BadLocationException e) {
  74                         WebUI.log(e);
  75
  76                         Shell shell = fViewer.getTextWidget().getShell();
  77                         MessageDialog
  78                                         .openError(
  79                                                         shell,
  80                                                         TemplatePreferencesMessages
  81                                                                         .getString("TemplateVariableProposal.error.title"), e.getMessage()); //$NON-NLS-1$
  82                 }
  83         }
  84
  85         /*
  86          * @see ICompletionProposal#getSelection(IDocument)
  87          */
  88         public Point getSelection(IDocument document) {
  89                 return fSelection;
  90         }
  91
  92         /*
  93          * @see ICompletionProposal#getAdditionalProposalInfo()
  94          */
  95         public String getAdditionalProposalInfo() {
  96                 return null;
  97         }
  98
  99         /*
 100          * @see ICompletionProposal#getDisplayString()
 101          */
 102         public String getDisplayString() {
 103                 return fVariable.getType() + " - " + fVariable.getDescription(); //$NON-NLS-1$
 104         }
 105
 106         /*
 107          * @see ICompletionProposal#getImage()
 108          */
 109         public Image getImage() {
 110                 return null;
 111         }
 112
 113         /*
 114          * @see ICompletionProposal#getContextInformation()
 115          */
 116         public IContextInformation getContextInformation() {
 117                 return null;
 118         }
 119 }