FocusOppositePaneAction.java

/*
 * 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.diff.actions;

import com.intellij.openapi.actionSystem.AnAction;
import com.intellij.openapi.actionSystem.AnActionEvent;
import com.intellij.openapi.diff.impl.DiffPanelImpl;
import com.intellij.openapi.project.DumbAware;

/**
 * @author yole
 */
public class FocusOppositePaneAction extends AnAction implements DumbAware {
  public FocusOppositePaneAction() {
    setEnabledInModalContext(true);
  }

  public void actionPerformed(final AnActionEvent e) {
    final DiffPanelImpl diffPanel = DiffPanelImpl.fromDataContext(e.getDataContext());
    assert diffPanel != null;
    diffPanel.focusOppositeSide();
  }

  @Override
  public void update(final AnActionEvent e) {
    final DiffPanelImpl diffPanel = DiffPanelImpl.fromDataContext(e.getDataContext());
    e.getPresentation().setEnabled(diffPanel != null);
  }
}