| /* |
| * 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.modules.welcome; |
| |
| import java.lang.ref.WeakReference; |
| import org.openide.util.NbBundle; |
| import org.openide.windows.*; |
| import java.awt.*; |
| import javax.swing.*; |
| import org.netbeans.modules.welcome.content.Constants; |
| import org.netbeans.modules.welcome.ui.StartPageContent; |
| import org.openide.ErrorManager; |
| import org.openide.nodes.Node; |
| import org.openide.util.NbPreferences; |
| |
| /** |
| * The welcome screen. |
| * @author Richard Gregor, S. Aubrecht |
| */ |
| public class WelcomeComponent extends TopComponent { |
| static final long serialVersionUID=6021472310161712674L; |
| private static WeakReference<WelcomeComponent> component = |
| new WeakReference<WelcomeComponent>(null); |
| private JComponent content; |
| |
| private boolean initialized = false; |
| |
| private WelcomeComponent(){ |
| setLayout(new BorderLayout()); |
| setName(NbBundle.getMessage(WelcomeComponent.class, "LBL_Tab_Title")); //NOI18N |
| content = null; |
| initialized = false; |
| putClientProperty( "activateAtStartup", Boolean.TRUE ); //NOI18N |
| putClientProperty( "KeepNonPersistentTCInModelWhenClosed", Boolean.TRUE ); //NOI18N |
| } |
| |
| @Override protected String preferredID(){ |
| return "WelcomeComponent"; //NOI18N |
| } |
| |
| /** |
| * #38900 - lazy addition of GUI components |
| */ |
| |
| private void doInitialize() { |
| initAccessibility(); |
| |
| if( null == content ) { |
| WelcomeOptions.getDefault().incrementStartCounter(); |
| |
| JScrollPane scroll = new JScrollPane(new StartPageContent()); |
| scroll.setBorder(BorderFactory.createEmptyBorder()); |
| scroll.getViewport().setOpaque(false); |
| scroll.setOpaque(false); |
| scroll.getViewport().setPreferredSize(new Dimension(Constants.START_PAGE_MIN_WIDTH,100)); |
| JScrollBar vertical = scroll.getVerticalScrollBar(); |
| if( null != vertical ) { |
| vertical.setBlockIncrement(30*Constants.FONT_SIZE); |
| vertical.setUnitIncrement(Constants.FONT_SIZE); |
| } |
| content = scroll; |
| add( content, BorderLayout.CENTER ); |
| setFocusable( false ); |
| } |
| } |
| |
| /* Singleton accessor. As WelcomeComponent is persistent singleton this |
| * accessor makes sure that WelcomeComponent is deserialized by window system. |
| * Uses known unique TopComponent ID "Welcome" to get WelcomeComponent instance |
| * from window system. "Welcome" is name of settings file defined in module layer. |
| */ |
| public static WelcomeComponent findComp() { |
| WelcomeComponent wc = component.get(); |
| if (wc == null) { |
| TopComponent tc = WindowManager.getDefault().findTopComponent("Welcome"); // NOI18N |
| if (tc != null) { |
| if (tc instanceof WelcomeComponent) { |
| wc = (WelcomeComponent)tc; |
| component = new WeakReference<WelcomeComponent>(wc); |
| } else { |
| //Incorrect settings file? |
| IllegalStateException exc = new IllegalStateException |
| ("Incorrect settings file. Unexpected class returned." // NOI18N |
| + " Expected:" + WelcomeComponent.class.getName() // NOI18N |
| + " Returned:" + tc.getClass().getName()); // NOI18N |
| ErrorManager.getDefault().notify(ErrorManager.INFORMATIONAL, exc); |
| //Fallback to accessor reserved for window system. |
| wc = WelcomeComponent.createComp(); |
| } |
| } else { |
| //WelcomeComponent cannot be deserialized |
| //Fallback to accessor reserved for window system. |
| wc = WelcomeComponent.createComp(); |
| } |
| } |
| return wc; |
| } |
| |
| /* Singleton accessor reserved for window system ONLY. Used by window system to create |
| * WelcomeComponent instance from settings file when method is given. Use <code>findComp</code> |
| * to get correctly deserialized instance of WelcomeComponent. */ |
| public static WelcomeComponent createComp() { |
| WelcomeComponent wc = component.get(); |
| if(wc == null) { |
| wc = new WelcomeComponent(); |
| component = new WeakReference<WelcomeComponent>(wc); |
| } |
| return wc; |
| } |
| |
| /** Overriden to explicitely set persistence type of WelcomeComponent |
| * to PERSISTENCE_ALWAYS */ |
| @Override public int getPersistenceType() { |
| return TopComponent.PERSISTENCE_ONLY_OPENED; |
| } |
| |
| private void initAccessibility(){ |
| getAccessibleContext().setAccessibleDescription(NbBundle.getMessage(WelcomeComponent.class, "ACS_Welcome_DESC")); // NOI18N |
| } |
| |
| /** |
| * Called when <code>TopComponent</code> is about to be shown. |
| * Shown here means the component is selected or resides in it own cell |
| * in container in its <code>Mode</code>. The container is visible and not minimized. |
| * <p><em>Note:</em> component |
| * is considered to be shown, even its container window |
| * is overlapped by another window.</p> |
| * @since 2.18 |
| * |
| * #38900 - lazy addition of GUI components |
| * |
| */ |
| @Override protected void componentShowing() { |
| if (!initialized) { |
| initialized = true; |
| doInitialize(); |
| } |
| if( null != content && getComponentCount() == 0 ) { |
| //notify components down the hierarchy tree that they should |
| //refresh their content (e.g. RSS feeds) |
| add( content, BorderLayout.CENTER ); |
| } |
| super.componentShowing(); |
| setActivatedNodes( new Node[] {} ); |
| } |
| |
| private static boolean firstTimeOpen = true; |
| @Override |
| protected void componentOpened() { |
| super.componentOpened(); |
| if( firstTimeOpen ) { |
| firstTimeOpen = false; |
| if( !WelcomeOptions.getDefault().isShowOnStartup() ) { |
| close(); |
| } |
| } |
| } |
| |
| @Override |
| protected void componentClosed() { |
| super.componentClosed(); |
| TopComponentGroup group = WindowManager.getDefault().findTopComponentGroup("InitialLayout"); //NOI18N |
| if( null != group ) { |
| group.open(); |
| boolean firstTimeClose = NbPreferences.forModule(WelcomeComponent.class).getBoolean("firstTimeClose", true); //NOI18N |
| NbPreferences.forModule(WelcomeComponent.class).putBoolean("firstTimeClose", false); //NOI18N |
| if( firstTimeClose ) { |
| TopComponent tc = WindowManager.getDefault().findTopComponent("projectTabLogical_tc"); //NOI18N |
| if( null != tc && tc.isOpened() ) |
| tc.requestActive(); |
| } |
| } |
| } |
| |
| @Override protected void componentHidden() { |
| super.componentHidden(); |
| if( null != content ) { |
| //notify components down the hierarchy tree that they no long |
| //need to periodically refresh their content (e.g. RSS feeds) |
| remove( content ); |
| } |
| } |
| |
| @Override |
| public void requestFocus() { |
| if( null != content ) |
| content.requestFocus(); |
| } |
| |
| @Override |
| public boolean requestFocusInWindow() { |
| if( null != content ) |
| return content.requestFocusInWindow(); |
| return super.requestFocusInWindow(); |
| } |
| } |
| |
