platform/platform-impl/src/com/intellij/ui/MountainLionNotifications.java

/*
 * Copyright 2000-2012 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.ui;

import com.intellij.ide.AppLifecycleListener;
import com.intellij.openapi.application.ApplicationActivationListener;
import com.intellij.openapi.application.ApplicationManager;
import com.intellij.openapi.util.text.StringUtil;
import com.intellij.openapi.wm.IdeFrame;
import com.intellij.ui.mac.foundation.Foundation;
import com.intellij.ui.mac.foundation.ID;
import com.intellij.util.messages.MessageBusConnection;
import org.jetbrains.annotations.NotNull;

import java.util.Set;

import static com.intellij.ui.mac.foundation.Foundation.invoke;
import static com.intellij.ui.mac.foundation.Foundation.nsString;

/**
 * @author Dennis.Ushakov
 */
class MountainLionNotifications implements SystemNotificationsImpl.Notifier {
  private static MountainLionNotifications ourInstance;

  public static synchronized MountainLionNotifications getInstance() {
    if (ourInstance == null) {
      ourInstance = new MountainLionNotifications();
    }
    return ourInstance;
  }

  private MountainLionNotifications() {
    final MessageBusConnection connection = ApplicationManager.getApplication().getMessageBus().connect();
    connection.subscribe(ApplicationActivationListener.TOPIC, new ApplicationActivationListener.Adapter() {
      @Override
      public void applicationActivated(IdeFrame ideFrame) {
        cleanupDeliveredNotifications();
      }
    });
    connection.subscribe(AppLifecycleListener.TOPIC, new AppLifecycleListener.Adapter() {
      @Override
      public void appClosing() {
        cleanupDeliveredNotifications();
      }
    });
  }

  @Override
  public void notify(@NotNull Set<String> allNames, @NotNull String name, @NotNull String title, @NotNull String description) {
    final ID notification = invoke(Foundation.getObjcClass("NSUserNotification"), "new");
    invoke(notification, "setTitle:", nsString(StringUtil.stripHtml(title, true).replace("%", "%%")));
    invoke(notification, "setInformativeText:", nsString(StringUtil.stripHtml(description, true).replace("%", "%%")));
    final ID center = invoke(Foundation.getObjcClass("NSUserNotificationCenter"), "defaultUserNotificationCenter");
    invoke(center, "deliverNotification:", notification);
  }

  private static void cleanupDeliveredNotifications() {
    final ID center = invoke(Foundation.getObjcClass("NSUserNotificationCenter"), "defaultUserNotificationCenter");
    invoke(center, "removeAllDeliveredNotifications");
  }
}