/*
* 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 com.sun.tools.visualvm.core.datasource.DataSource;
import com.sun.tools.visualvm.uisupport.UISupport;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.KeyboardFocusManager;
import java.awt.Point;
import java.awt.Rectangle;
import java.awt.Window;
import java.awt.event.ActionEvent;
import java.awt.event.InputEvent;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.WindowEvent;
import java.awt.event.WindowFocusListener;
import java.util.Set;
import javax.swing.AbstractAction;
import javax.swing.Action;
import javax.swing.BorderFactory;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JPopupMenu;
import javax.swing.JScrollPane;
import javax.swing.JTree;
import javax.swing.KeyStroke;
import javax.swing.ScrollPaneConstants;
import javax.swing.SwingUtilities;
import javax.swing.event.TreeExpansionEvent;
import javax.swing.event.TreeWillExpandListener;
import javax.swing.tree.ExpandVetoException;
import javax.swing.tree.TreePath;
import javax.swing.tree.TreeSelectionModel;
/**
*
* @author Jiri Sedlacek
*/
class ExplorerComponent extends JPanel {
private static final Color MAC_TREE_BG_FOCUSED = new Color(214, 221, 229);
private static final Color MAC_TREE_BG_NOTFOCUSED = new Color(232, 232, 232);
private static ExplorerComponent instance;
private JTree explorerTree;
private boolean vetoTreeExpansion = false;
public static synchronized ExplorerComponent instance() {
if (instance == null) instance = new ExplorerComponent();
return instance;
}
private ExplorerComponent() {
initComponents();
}
public JTree getTree() {
return explorerTree;
}
public boolean requestFocusInWindow() {
if (explorerTree != null) return explorerTree.requestFocusInWindow();
else return super.requestFocusInWindow();
}
private void initComponents() {
setLayout(new BorderLayout());
// explorerTree
explorerTree = new JTree(ExplorerModelBuilder.getInstance().getModel()) {
protected void processMouseEvent(MouseEvent e) {
vetoTreeExpansion = false;
if (e.getModifiers() == InputEvent.BUTTON1_MASK && e.getClickCount() >= getToggleClickCount()) {
Set<DataSource> selectedDataSources = ExplorerSupport.sharedInstance().getSelectedDataSources();
if (getDefaultAction(selectedDataSources) != null) vetoTreeExpansion = true;
}
super.processMouseEvent(e);
}
public void updateUI() {
super.updateUI();
setCellRenderer(new ExplorerNodeRenderer());
}
public void addNotify() {
if (UISupport.isAquaLookAndFeel()) setWindow();
super.addNotify();
}
public void removeNotify() {
if (UISupport.isAquaLookAndFeel()) resetWindow();
super.removeNotify();
}
private Window window;
private WindowFocusListener focusListener;
private void setWindow() {
window = SwingUtilities.getWindowAncestor(this);
if (window != null) {
if (focusListener == null) focusListener = new WindowFocusListener() {
public void windowGainedFocus(WindowEvent e) { repaint(); }
public void windowLostFocus(WindowEvent e) { repaint(); }
};
window.addWindowFocusListener(focusListener);
}
}
private void resetWindow() {
if (window != null && focusListener != null) {
window.removeWindowFocusListener(focusListener);
window = null;
}
}
public Color getBackground() {
if (!UISupport.isAquaLookAndFeel()) return super.getBackground();
return KeyboardFocusManager.getCurrentKeyboardFocusManager().
getFocusedWindow() == window ? MAC_TREE_BG_FOCUSED :
MAC_TREE_BG_NOTFOCUSED;
}
};
explorerTree.setRootVisible(false);
explorerTree.setShowsRootHandles(true);
explorerTree.setRowHeight(getTreeRowHeight());
explorerTree.setCellRenderer(new ExplorerNodeRenderer());
explorerTree.getSelectionModel().setSelectionMode(TreeSelectionModel.DISCONTIGUOUS_TREE_SELECTION);
explorerTree.addKeyListener(new ExplorerTreeKeyAdapter());
explorerTree.addMouseListener(new ExplorerTreeMouseAdapter());
// explorerTreeScrollPane
JScrollPane explorerTreeScrollPane = new JScrollPane(explorerTree, ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED, ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED);
explorerTreeScrollPane.setBorder(BorderFactory.createEmptyBorder());
explorerTreeScrollPane.setViewportBorder(BorderFactory.createEmptyBorder());
// Keyboard actions definition
String DEFAULT_ACTION_KEY = "DEFAULT_ACTION"; // NOI18N
getInputMap(WHEN_IN_FOCUSED_WINDOW).put(KeyStroke.getKeyStroke(KeyEvent.VK_ENTER, 0), DEFAULT_ACTION_KEY); // NOI18N
getInputMap(WHEN_ANCESTOR_OF_FOCUSED_COMPONENT).put(KeyStroke.getKeyStroke(KeyEvent.VK_ENTER, 0), DEFAULT_ACTION_KEY); // NOI18N
getActionMap().put(DEFAULT_ACTION_KEY, new AbstractAction() { public void actionPerformed(ActionEvent e) { performDefaultAction(); }}); // NOI18N
// Control tree expansion
explorerTree.addTreeWillExpandListener(new TreeWillExpandListener() {
public void treeWillExpand(TreeExpansionEvent event) throws ExpandVetoException {
if (!vetoTreeExpansion) return;
vetoTreeExpansion = false;
throw new ExpandVetoException(event);
}
public void treeWillCollapse(TreeExpansionEvent event) throws ExpandVetoException {
if (!vetoTreeExpansion) return;
vetoTreeExpansion = false;
throw new ExpandVetoException(event);
}
});
add(explorerTreeScrollPane, BorderLayout.CENTER);
}
private static int getTreeRowHeight() {
// // NOTE: At least on GTK this returns -1
// int rowHeight = UIManager.getInt("Tree.rowHeight");
// if (rowHeight != -1) return rowHeight + 2; else
return new JLabel("XXX").getPreferredSize().height + 4; // NOI18N
}
private static Action getDefaultAction(Set<DataSource> dataSources) {
return ExplorerContextMenuFactory.instance().getDefaultActionFor(dataSources);
}
private void performDefaultAction() {
Set<DataSource> selectedDataSources = ExplorerSupport.sharedInstance().getSelectedDataSources();
Action defaultAction = getDefaultAction(selectedDataSources);
if (defaultAction != null) defaultAction.actionPerformed(new ActionEvent(selectedDataSources, 0, "Default Action")); // NOI18N
}
private void displayContextMenu(int x, int y) {
JPopupMenu popupMenu = ExplorerContextMenuFactory.instance().createPopupMenu();
if (popupMenu != null) popupMenu.show(explorerTree, x, y);
}
private class ExplorerTreeKeyAdapter extends KeyAdapter {
public void keyPressed(KeyEvent e) {
if ((e.getKeyCode() == KeyEvent.VK_CONTEXT_MENU)
|| ((e.getKeyCode() == KeyEvent.VK_F10) && (e.getModifiers() == InputEvent.SHIFT_MASK))) {
e.consume();
int x;
int y;
TreePath path = explorerTree.getSelectionPath();
if (path != null) {
Rectangle pathRect = explorerTree.getPathBounds(path);
x = pathRect.x;
y = pathRect.y;
} else {
Point pathPoint = new Point(explorerTree.getWidth() / 3, explorerTree.getHeight() / 3);
x = pathPoint.x;
y = pathPoint.y;
}
displayContextMenu(x, y);
}
}
}
private class ExplorerTreeMouseAdapter extends MouseAdapter {
private void updatePathSelection(TreePath path, MouseEvent e) {
if (path != null) {
if (!explorerTree.isPathSelected(path))
explorerTree.setSelectionPath(path);
} else {
explorerTree.clearSelection();
}
}
public void mousePressed(MouseEvent e) {
TreePath path = explorerTree.getPathForLocation(e.getX(), e.getY());
updatePathSelection(path, e);
if (e.isPopupTrigger()) displayContextMenu(e.getX(), e.getY());
}
public void mouseReleased(MouseEvent e) {
TreePath path = explorerTree.getPathForLocation(e.getX(), e.getY());
updatePathSelection(path, e);
if (e.isPopupTrigger()) displayContextMenu(e.getX(), e.getY());
}
public void mouseClicked(MouseEvent e) {
if (SwingUtilities.isLeftMouseButton(e) &&
e.getClickCount() == explorerTree.getToggleClickCount()) {
performDefaultAction();
}
}
}
}