org.spearce.egit.ui/src/org/spearce/egit/ui/internal/decorators/GitQuickDiffProvider.java

   1 /*******************************************************************************
   2  * Copyright (C) 2007, Robin Rosenberg <robin.rosenberg@dewire.com>
   3  * Copyright (C) 2007, Shawn O. Pearce <spearce@spearce.org>
   4  *
   5  * All rights reserved. This program and the accompanying materials
   6  * are made available under the terms of the Eclipse Public License v1.0
   7  * See LICENSE for the full license text, also available.
   8  *******************************************************************************/
   9 package org.spearce.egit.ui.internal.decorators;
  10
  11 import java.io.IOException;
  12
  13 import org.eclipse.core.resources.IResource;
  14 import org.eclipse.core.runtime.CoreException;
  15 import org.eclipse.core.runtime.IProgressMonitor;
  16 import org.eclipse.jface.text.IDocument;
  17 import org.eclipse.team.core.RepositoryProvider;
  18 import org.eclipse.ui.IEditorInput;
  19 import org.eclipse.ui.ide.ResourceUtil;
  20 import org.eclipse.ui.texteditor.ITextEditor;
  21 import org.eclipse.ui.texteditor.quickdiff.IQuickDiffReferenceProvider;
  22 import org.spearce.egit.ui.Activator;
  23 import org.spearce.egit.ui.UIText;
  24
  25 /**
  26  * This class provides input for the Eclipse Quick Diff feature.
  27  */
  28 public class GitQuickDiffProvider implements IQuickDiffReferenceProvider {
  29
  30         private String id;
  31
  32         private GitDocument document;
  33
  34         private IResource resource;
  35
  36         public void dispose() {
  37                 Activator.trace("(GitQuickDiffProvider) dispose");
  38                 if (document != null)
  39                         document.dispose();
  40         }
  41
  42         public String getId() {
  43                 return id;
  44         }
  45
  46         public IDocument getReference(IProgressMonitor monitor)
  47                         throws CoreException {
  48                 Activator.trace("(GitQuickDiffProvider) file: " + resource);
  49                 RepositoryProvider provider = RepositoryProvider.getProvider(resource
  50                                 .getProject());
  51                 if (provider != null) {
  52                         try {
  53                                 document = GitDocument.create(resource);
  54                         } catch (CoreException e) {
  55                                 Activator.error(UIText.QuickDiff_failedLoading, e);
  56                         } catch (IOException e) {
  57                                 Activator.error(UIText.QuickDiff_failedLoading, e);
  58                         }
  59                         return document;
  60                 } else {
  61                         return null;
  62                 }
  63         }
  64
  65         public boolean isEnabled() {
  66                 return true;
  67         }
  68
  69         public void setActiveEditor(ITextEditor editor) {
  70                 IEditorInput editorInput = editor.getEditorInput();
  71                 resource = ResourceUtil.getResource(editorInput);
  72         }
  73
  74         public void setId(String id) {
  75                 this.id = id;
  76         }
  77 }