| /* |
| * Copyright 2000-2009 JetBrains s.r.o. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.intellij.openapi.vcs.diff; |
| |
| import com.intellij.openapi.vcs.history.VcsRevisionNumber; |
| import com.intellij.openapi.vfs.VirtualFile; |
| import org.jetbrains.annotations.Nullable; |
| |
| /** |
| * Interface for selecting a version number valid for a specified file placed under |
| * version control. |
| * |
| * @see com.intellij.openapi.vcs.AbstractVcs#getRevisionSelector() |
| * @since 5.0.2 |
| */ |
| public interface RevisionSelector { |
| /** |
| * Shows the UI for selecting the version number and returns the selected |
| * version number or null if the selection was cancelled. |
| * |
| * @param file the file for which the version number is requested. |
| * @return the version number or null. |
| */ |
| @Nullable VcsRevisionNumber selectNumber(VirtualFile file); |
| } |