/*
* Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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package com.sun.tools.visualvm.core.explorer;
import java.awt.BorderLayout;
import java.awt.event.FocusAdapter;
import java.awt.event.FocusEvent;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.openide.util.ImageUtilities;
import org.openide.util.NbBundle;
import org.openide.windows.Mode;
import org.openide.windows.TopComponent;
import org.openide.windows.WindowManager;
/**
*
* @author Jiri Sedlacek
*/
// Top component for DataSources explorer
final class ExplorerTopComponent extends TopComponent {
private static final String PREFERRED_ID = "ExplorerTopComponent"; // NOI18N
private static final Logger LOGGER = Logger.getLogger(ExplorerTopComponent.class.getName());
static final String ICON_PATH = "com/sun/tools/visualvm/core/ui/resources/explorer.png"; // NOI18N
private static ExplorerTopComponent instance;
private ExplorerTopComponent() {
initComponents();
setName(NbBundle.getMessage(ExplorerTopComponent.class, "LBL_Applications")); // NOI18N
setToolTipText(NbBundle.getMessage(ExplorerTopComponent.class, "LBL_Applications")); // NOI18N
setIcon(ImageUtilities.loadImage(ICON_PATH, true));
setFocusable(true);
setRequestFocusEnabled(true);
addFocusListener(new FocusAdapter() {
public void focusGained(FocusEvent e) {
ExplorerComponent.instance().requestFocusInWindow();
}
});
}
private void initComponents() {
setLayout(new BorderLayout());
add(ExplorerComponent.instance(), BorderLayout.CENTER);
}
/**
* Gets default instance. Do not use directly: reserved for *.settings files only,
* i.e. deserialization routines; otherwise you could get a non-deserialized instance.
* To obtain the singleton instance, use {@link findInstance}.
*/
public static synchronized ExplorerTopComponent getInstance() {
if (instance == null) instance = new ExplorerTopComponent();
return instance;
}
/**
* Obtain the ExplorerTopComponent instance. Never call {@link #getDefault} directly!
*/
public static synchronized ExplorerTopComponent findInstance() {
TopComponent explorerTopComponent = WindowManager.getDefault().findTopComponent(PREFERRED_ID);
if (explorerTopComponent == null) return getInstance();
if (explorerTopComponent instanceof ExplorerTopComponent) return (ExplorerTopComponent)explorerTopComponent;
if (LOGGER.isLoggable(Level.WARNING)) {
LOGGER.warning("There seem to be multiple components with the '" + PREFERRED_ID + "' ID. That is a potential source of errors and unexpected behavior."); // NOI18N
}
return getInstance();
}
private boolean needsDocking() {
return WindowManager.getDefault().findMode(this) == null;
}
public void open() {
if (needsDocking()) {
Mode mode = WindowManager.getDefault().findMode("explorer"); // NOI18N
if (mode != null) mode.dockInto(this);
}
super.open();
}
public int getPersistenceType() {
return TopComponent.PERSISTENCE_ALWAYS;
}
protected String preferredID() {
return PREFERRED_ID;
}
}