plugins/cvs/cvs-plugin/src/com/intellij/cvsSupport2/CvsRevisionSelector.java

   1 /*
   2  * Copyright 2000-2009 JetBrains s.r.o.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 package com.intellij.cvsSupport2;
  17
  18 import com.intellij.cvsSupport2.history.CvsRevisionNumber;
  19 import com.intellij.cvsSupport2.ui.SelectFileVersionDialog;
  20 import com.intellij.openapi.project.Project;
  21 import com.intellij.openapi.vcs.actions.VcsContextFactory;
  22 import com.intellij.openapi.vcs.diff.RevisionSelector;
  23 import com.intellij.openapi.vcs.history.VcsRevisionNumber;
  24 import com.intellij.openapi.vfs.VirtualFile;
  25 import org.jetbrains.annotations.Nullable;
  26
  27 public class CvsRevisionSelector implements RevisionSelector {
  28
  29
  30   private final Project myProject;
  31
  32   public CvsRevisionSelector(final Project project) {
  33     myProject = project;
  34   }
  35
  36   @Nullable public VcsRevisionNumber selectNumber(VirtualFile file) {
  37     final SelectFileVersionDialog selector = new SelectFileVersionDialog(
  38       VcsContextFactory.SERVICE.getInstance().createFilePathOn(file),
  39       myProject);
  40
  41     selector.show();
  42
  43     if (selector.isOK()) {
  44       return new CvsRevisionNumber(selector.getRevisionOrDate());
  45     } else {
  46       return null;
  47     }
  48   }
  49 }