/*
 * Copyright 2000-2015 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.changes;

import com.intellij.ide.impl.dataRules.GetDataRule;
import com.intellij.openapi.actionSystem.DataProvider;
import com.intellij.openapi.vcs.VcsDataKeys;
import com.intellij.openapi.ListSelection;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

public class VcsChangesSelectionRule implements GetDataRule {
  @Nullable
  @Override
  public Object getData(@NotNull DataProvider dataProvider) {
    return getChangesSelection(dataProvider);
  }

  @Nullable
  public ListSelection<Change> getChangesSelection(@NotNull DataProvider dataProvider) {
    Change currentChange = VcsDataKeys.CURRENT_CHANGE.getData(dataProvider);

    Change[] selectedChanges = VcsDataKeys.SELECTED_CHANGES.getData(dataProvider);
    if (selectedChanges != null) {
      return ListSelection.create(selectedChanges, currentChange);
    }

    Change[] changes = VcsDataKeys.CHANGES.getData(dataProvider);
    if (changes != null) {
      return ListSelection.create(changes, currentChange);
    }

    if (currentChange != null) {
      return ListSelection.createSingleton(currentChange);
    }
    return null;
  }
}

@@ -689,16 +689,59 @@
 taRule;%0A
+import com.intellij.openapi.ListSelection;%0A
 import c
@@ -836,51 +836,8 @@
 ys;%0A
-import com.intellij.openapi.ListSelection;%0A
 impo
@@ -918,16 +918,42 @@
 lable;%0A%0A
+import java.util.Arrays;%0A%0A
 public c
@@ -1248,86 +1248,8 @@
 ) %7B%0A
-    Change currentChange = VcsDataKeys.CURRENT_CHANGE.getData(dataProvider);%0A%0A
     
@@ -1395,16 +1395,32 @@
 n.create
+At(Arrays.asList
 (selecte
@@ -1423,39 +1423,28 @@
 ectedChanges
+)
 , 
-currentChange
+0
 );%0A    %7D%0A%0A  
@@ -1571,130 +1571,36 @@
 eate
-(changes, currentChange);%0A    %7D%0A%0A    if (currentChange != null) %7B%0A      return ListSelection.createSingleton(currentChange
+At(Arrays.asList(changes), 0
 );%0A 
@@ -1604,16 +1604,17 @@
 ;%0A    %7D%0A
+%0A
     retu

fix incorrect VcsDataKeys.CURRENT_CHANGE usage