1 files changed, 46 insertions, 0 deletions
diff --git a/platform/dvcs/src/com/intellij/dvcs/ui/VcsLogSingleCommitAction.java b/platform/dvcs/src/com/intellij/dvcs/ui/VcsLogSingleCommitAction.java
new file mode 100644
index 000000000000..4b43380ea9eb
--- /dev/null
+++ b/platform/dvcs/src/com/intellij/dvcs/ui/VcsLogSingleCommitAction.java
@@ -0,0 +1,46 @@
+/*
+ * Copyright 2000-2014 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.dvcs.ui;
+
+import com.intellij.dvcs.repo.Repository;
+import com.intellij.openapi.project.Project;
+import com.intellij.util.containers.MultiMap;
+import com.intellij.vcs.log.VcsFullCommitDetails;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.Collection;
+import java.util.Map;
+
+public abstract class VcsLogSingleCommitAction<Repo extends Repository> extends VcsLogAction<Repo> {
+
+  @Override
+  protected boolean isEnabled(@NotNull MultiMap<Repo, VcsFullCommitDetails> grouped) {
+    return grouped.size() == 1;
+  }
+
+  @Override
+  protected void actionPerformed(@NotNull Project project, @NotNull MultiMap<Repo, VcsFullCommitDetails> grouped) {
+    assert grouped.size() == 1;
+    Map.Entry<Repo, Collection<VcsFullCommitDetails>> entry = grouped.entrySet().iterator().next();
+    Repo repository = entry.getKey();
+    Collection<VcsFullCommitDetails> commits = entry.getValue();
+    assert commits.size() == 1;
+    actionPerformed(repository, commits.iterator().next());
+  }
+
+  protected abstract void actionPerformed(@NotNull Repo repository, @NotNull VcsFullCommitDetails commit);
+
+}