Java tutorial
/** * Copyright 2014 Microsoft Open Technologies, Inc. * * 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.microsoftopentechnologies.intellij.ui.components; import javax.swing.event.EventListenerList; import com.intellij.openapi.project.Project; import com.intellij.openapi.ui.DialogWrapper; import com.microsoftopentechnologies.deploy.wizard.ConfigurationEventArgs; import com.microsoftopentechnologies.deploy.wizard.ConfigurationEventListener; public abstract class WindowsAzurePage extends DialogWrapper { private static final EventListenerList LISTENERS = new EventListenerList(); // protected WindowsAzurePage(String pageName) { // super(pageName); // } protected WindowsAzurePage(Project project) { super(project); } public static void addConfigurationEventListener(ConfigurationEventListener listener) { LISTENERS.add(ConfigurationEventListener.class, listener); } public void removeConfigurationEventListener(ConfigurationEventListener listener) { LISTENERS.remove(ConfigurationEventListener.class, listener); } public void fireConfigurationEvent(ConfigurationEventArgs config) { Object[] list = LISTENERS.getListenerList(); for (int i = 0; i < list.length; i += 2) { if (list[i] == ConfigurationEventListener.class) { ((ConfigurationEventListener) list[i + 1]).onConfigurationChanged(config); } } } }