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   1 /*******************************************************************************
   2  * Copyright (c) 2000, 2003 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
  12 package net.sourceforge.phpdt.internal.ui.text.java.hover;
  13
  14 import net.sourceforge.phpdt.core.IJavaElement;
  15 import net.sourceforge.phpdt.internal.ui.text.JavaWordFinder;
  16 import net.sourceforge.phpdt.ui.text.java.hover.IJavaEditorTextHover;
  17
  18 import org.eclipse.jface.text.IRegion;
  19 import org.eclipse.jface.text.ITextViewer;
  20 import org.eclipse.ui.IEditorPart;
  21
  22 /**
  23  * Abstract class for providing hover information for Java elements.
  24  *
  25  * @since 2.1
  26  */
  27 public abstract class AbstractJavaEditorTextHover implements IJavaEditorTextHover {
  28
  29
  30         private IEditorPart fEditor;
  31
  32
  33         /*
  34          * @see IJavaEditorTextHover#setEditor(IEditorPart)
  35          */
  36         public void setEditor(IEditorPart editor) {
  37                 fEditor= editor;
  38         }
  39
  40         protected IEditorPart getEditor() {
  41                 return fEditor;
  42         }
  43
  44 //      protected ICodeAssist getCodeAssist() {
  45 //              if (fEditor != null) {
  46 //                      IEditorInput input= fEditor.getEditorInput();
  47 //                      if (input instanceof IClassFileEditorInput) {
  48 //                              IClassFileEditorInput cfeInput= (IClassFileEditorInput) input;
  49 //                              return cfeInput.getClassFile();
  50 //                      }
  51 //
  52 //                      IWorkingCopyManager manager= PHPeclipsePlugin.getDefault().getWorkingCopyManager();
  53 //                      return manager.getWorkingCopy(input);
  54 //              }
  55 //
  56 //              return null;
  57 //      }
  58
  59         /*
  60          * @see ITextHover#getHoverRegion(ITextViewer, int)
  61          */
  62         public IRegion getHoverRegion(ITextViewer textViewer, int offset) {
  63                 return JavaWordFinder.findWord(textViewer.getDocument(), offset);
  64         }
  65
  66         /*
  67          * @see ITextHover#getHoverInfo(ITextViewer, IRegion)
  68          */
  69         public String getHoverInfo(ITextViewer textViewer, IRegion hoverRegion) {
  70
  71 //              ICodeAssist resolve= getCodeAssist();
  72 //              if (resolve != null) {
  73 //                      try {
  74 //                              IJavaElement[] result= null;
  75 //
  76 //                              synchronized (resolve) {
  77 //                                      result= resolve.codeSelect(hoverRegion.getOffset(), hoverRegion.getLength());
  78 //                              }
  79 //
  80 //                              if (result == null)
  81 //                                      return null;
  82 //
  83 //                              int nResults= result.length;
  84 //                              if (nResults == 0)
  85 //                                      return null;
  86 //
  87 //                              return getHoverInfo(result);
  88 //
  89 //                      } catch (JavaModelException x) {
  90 //                              PHPeclipsePlugin.log(x.getStatus());
  91 //                      }
  92 //              }
  93                 return null;
  94         }
  95
  96         /**
  97          * Provides hover information for the given Java elements.
  98          *
  99          * @return the hover information string
 100          * @since 2.1
 101          */
 102         protected String getHoverInfo(IJavaElement[] javaElements) {
 103                 return null;
 104         }
 105 }