| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 org.netbeans.core.browser.api; |
| |
| import java.beans.PropertyChangeListener; |
| import org.openide.util.Lookup; |
| |
| /** |
| * Factory to create embedded browser. |
| * |
| * @author S. Aubrecht, Jan Stola |
| */ |
| public abstract class EmbeddedBrowserFactory { |
| |
| /** |
| * The name of property which is fired when embedded browser is enabled or |
| * disabled. The property value is undefined. |
| * @since 1.1 |
| */ |
| public static final String PROP_ENABLED = "enabled"; //NOI18N |
| |
| /** |
| * @return The one and only instance. |
| */ |
| public static EmbeddedBrowserFactory getDefault() { |
| EmbeddedBrowserFactory res = null; |
| for (EmbeddedBrowserFactory factory : Lookup.getDefault().lookupAll(EmbeddedBrowserFactory.class)) { |
| if (factory.isEnabled()) { |
| return factory; |
| } else { |
| res = factory; |
| } |
| } |
| if( null == res ) { |
| res = new EmbeddedBrowserFactory() { |
| |
| @Override |
| public boolean isEnabled() { |
| return false; |
| } |
| |
| @Override |
| public WebBrowser createEmbeddedBrowser() { |
| throw new IllegalStateException(); |
| } |
| |
| @Override |
| public void addPropertyChangeListener(PropertyChangeListener l) { |
| } |
| |
| @Override |
| public void removePropertyChangeListener(PropertyChangeListener l) { |
| } |
| }; |
| } |
| return res; |
| } |
| |
| /** |
| * |
| * @return True if embedded browser implementation is available for current |
| * OS and JDK and if user has enabled embedded browser in Options, false otherwise. |
| */ |
| public abstract boolean isEnabled(); |
| |
| /** |
| * Creates a new embedded browser component. Don't forget to invoke dispose() |
| * when the browser is no longer needed. |
| * @return Embedded browser. |
| * @throws IllegalStateException If embedded browser isn't enabled. |
| * @see WebBrowser#dispose() |
| */ |
| public abstract WebBrowser createEmbeddedBrowser(); |
| |
| /** |
| * Add property change listener |
| * @param l |
| * @since 1.1 |
| */ |
| public abstract void addPropertyChangeListener( PropertyChangeListener l ); |
| |
| /** |
| * Remove property change listener |
| * @param l |
| * @since 1.1 |
| */ |
| public abstract void removePropertyChangeListener( PropertyChangeListener l ); |
| } |