/*
 * 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.actions;

import com.intellij.openapi.actionSystem.AnActionEvent;
import com.intellij.openapi.actionSystem.Presentation;
import com.intellij.openapi.project.DumbAwareAction;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.vcs.AbstractVcs;
import com.intellij.openapi.vcs.ProjectLevelVcsManager;
import org.jetbrains.annotations.NotNull;

import java.util.Collection;

import static com.intellij.util.containers.ContainerUtil.newHashSet;
import static java.util.Collections.emptySet;

public abstract class AbstractVcsAction extends DumbAwareAction {

  @SuppressWarnings("unused") // Required for compatibility with external plugins.
  public static Collection<AbstractVcs> getActiveVcses(@NotNull VcsContext dataContext) {
    Project project = dataContext.getProject();

    return project != null ? newHashSet(ProjectLevelVcsManager.getInstance(project).getAllActiveVcss()) : emptySet();
  }

  @Override
  public void update(@NotNull AnActionEvent e) {
    //noinspection deprecation - required for compatibility with external plugins.
    performUpdate(e.getPresentation(), VcsContextWrapper.createInstanceOn(e));
  }

  @Override
  public void actionPerformed(@NotNull AnActionEvent e) {
    actionPerformed(VcsContextWrapper.createCachedInstanceOn(e));
  }

  protected abstract void update(@NotNull VcsContext vcsContext, @NotNull Presentation presentation);

  protected abstract void actionPerformed(@NotNull VcsContext e);

  /**
   * @deprecated Only sync update is currently supported by {@link AbstractVcsAction}. Use
   * {@link com.intellij.openapi.actionSystem.AsyncUpdateAction} directly if async update is necessary.
   */
  @SuppressWarnings("unused") // Required for compatibility with external plugins.
  @Deprecated
  protected boolean forceSyncUpdate(@NotNull AnActionEvent e) {
    return true;
  }


  /**
   * @deprecated Use {@link AbstractVcsAction#update(VcsContext, Presentation)}.
   */
  @Deprecated
  protected void performUpdate(@NotNull Presentation presentation, @NotNull VcsContext vcsContext) {
    update(vcsContext, presentation);
  }
}

@@ -1,13 +1,10 @@
 /
-*%0A *
+/
  Copyrig
@@ -17,10 +17,10 @@
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@@ -36,566 +36,109 @@
 r.o.
-%0A *%0A * Licensed under the Apache License, Version 2.0 (the %22License%22);%0A * you may not use this file except in compliance with the License.%0A * You may obtain a copy of the License at%0A *%0A * http://www.apache.org/licenses/LICENSE-2.0%0A *%0A * Unless required by applicable law or agreed to in writing, software%0A * distributed under the License is distributed on an %22AS IS%22 BASIS,%0A * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.%0A * See the License for the specific language governing permissions and%0A * limitations under the License.%0A */
+ Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 %0Apac
@@ -1723,116 +1723,8 @@
 on%7D.
- Use%0A   * %7B@link com.intellij.openapi.actionSystem.AsyncUpdateAction%7D directly if async update is necessary.
 %0A   

fix javadoc refs