| /* |
| * 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.ui.mac; |
| |
| import java.util.LinkedList; |
| |
| /** |
| * @author Denis Fokin |
| */ |
| class MacMessagesQueue<T extends Runnable> { |
| |
| private boolean waitingForAppKit = false; |
| private LinkedList<Runnable> queueModel = new LinkedList<Runnable>(); |
| |
| synchronized void runOrEnqueue (final T runnable) { |
| if (waitingForAppKit) { |
| enqueue(runnable); |
| } else { |
| runnable.run(); |
| waitingForAppKit = true; |
| } |
| } |
| |
| private void enqueue (final T runnable) { |
| queueModel.add(runnable); |
| } |
| |
| synchronized void runFromQueue () { |
| if (!queueModel.isEmpty()) { |
| queueModel.remove().run(); |
| waitingForAppKit = true; |
| } else { |
| waitingForAppKit = false; |
| } |
| } |
| } |