platform/platform-impl/src/com/intellij/openapi/wm/impl/SystemDock.java

/*
 * Copyright 2000-2013 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.wm.impl;

import com.intellij.openapi.application.Application;
import com.intellij.openapi.application.ApplicationManager;
import com.intellij.openapi.util.SystemInfo;
import com.intellij.openapi.util.registry.Registry;
import com.intellij.ui.mac.MacDockDelegate;
import com.intellij.ui.win.WinDockDelegate;

/**
 * @author Denis Fokin
 */
public class SystemDock {
  private static final Delegate ourDelegate;

  static {
    Delegate delegate = null;

    Application app = ApplicationManager.getApplication();
    if (app != null && !app.isUnitTestMode()) {
      if (SystemInfo.isMac) {
        delegate = MacDockDelegate.getInstance();
      }
      else if (SystemInfo.isWin7OrNewer && Registry.is("windows.jumplist")) {
        delegate = WinDockDelegate.getInstance();
      }
    }

    ourDelegate = delegate;
  }

  public static void updateMenu() {
    if (ourDelegate != null) {
      ourDelegate.updateRecentProjectsMenu();
    }
  }

  public interface Delegate {
    void updateRecentProjectsMenu();
  }
}