// Copyright (c) 2003-2014, Jodd Team (jodd.org). All Rights Reserved.
package jodd.swingspy;
import javax.swing.JComponent;
import javax.swing.JDialog;
import javax.swing.JRootPane;
import javax.swing.KeyStroke;
import javax.swing.RootPaneContainer;
import javax.swing.SwingUtilities;
import java.awt.AWTEvent;
import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.Container;
import java.awt.Toolkit;
import java.awt.Dialog;
import java.awt.Frame;
import java.awt.event.AWTEventListener;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.MouseEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
/**
* SwingSpy.
*/
public class SwingSpy {
private static final int MOUSE_HOTKEY = MouseEvent.SHIFT_DOWN_MASK | MouseEvent.CTRL_DOWN_MASK | MouseEvent.BUTTON1_DOWN_MASK;
private static SwingSpy spy;
protected JDialog spyDialog;
protected SwingSpyPanel spyPanel;
protected SwingSpyGlassPane spyGlass;
public SwingSpy() {
Toolkit.getDefaultToolkit().addAWTEventListener(new AWTEventListener() {
/**
* Mouse hot-key combination clicked.
*/
public void eventDispatched(AWTEvent awtEvent) {
MouseEvent event = (MouseEvent) awtEvent;
if ((event.getModifiersEx() == MOUSE_HOTKEY) && (event.getClickCount() == 1)) {
showSpyDialog((Component) event.getSource());
event.consume();
}
}
}, AWTEvent.MOUSE_EVENT_MASK);
printUsageMessage();
}
/**
* Print SwingSpy usage message.
*/
protected void printUsageMessage() {
System.out.println("SHIFT-CTRL-CLICK on any component to activate.");
}
/**
* Installs the SwingSpy globally if not already installed.
*/
public static void install() {
if (spy == null) {
System.out.print("SwingSpy has been installed. ");
spy = new SwingSpy();
} else {
System.out.println("SwingSpy already installed.");
}
}
/**
* Shows spy dialog on selected component.
*/
public void showSpyDialog(final Component component) {
showSpyDialog(SwingUtilities.getRoot(component), component);
}
/**
* Shows spy dialog or reload existing one.
*
* @param rootComponent root component
* @param component current component
*/
public void showSpyDialog(final Component rootComponent, final Component component) {
if (spyDialog != null) {
spyDialog.setVisible(true);
spyGlass.setVisible(true);
spyPanel.reload(rootComponent, component);
return;
}
if (rootComponent instanceof RootPaneContainer) {
RootPaneContainer rootPane = (RootPaneContainer) rootComponent;
spyGlass = new SwingSpyGlassPane(rootPane);
rootPane.setGlassPane(spyGlass);
rootPane.getGlassPane().setVisible(true);
Toolkit.getDefaultToolkit().addAWTEventListener(spyGlass, AWTEvent.MOUSE_MOTION_EVENT_MASK | AWTEvent.MOUSE_EVENT_MASK);
}
SwingUtilities.invokeLater(new Runnable() {
public void run() {
initSpyDialog(rootComponent, component);
}
});
}
/**
* Initializes Spy dialog.
*/
protected void initSpyDialog(Component rootComponent, Component component) {
if (rootComponent instanceof Dialog) {
spyDialog = new CaddyDialog((Dialog) rootComponent) {
@Override
protected JRootPane createRootPane() {
return createSpyRootPane();
}
};
} else if (rootComponent instanceof Frame) {
spyDialog = new CaddyDialog((Frame) rootComponent) {
@Override
protected JRootPane createRootPane() {
return createSpyRootPane();
}
};
} else {
spyDialog = new JDialog() {
@Override
protected JRootPane createRootPane() {
return createSpyRootPane();
}
};
}
spyDialog.setName("SwingSpy");
spyDialog.setTitle("SwingSpy");
spyDialog.setModal(false);
spyDialog.setAlwaysOnTop(true);
Container contentPane = spyDialog.getContentPane();
contentPane.setLayout(new BorderLayout());
spyPanel = new SwingSpyPanel();
spyPanel.reload(rootComponent, component);
contentPane.add(spyPanel);
spyDialog.pack();
spyDialog.addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
super.windowClosed(e);
spyGlass.setVisible(false);
spyDialog = null;
}
});
spyDialog.setLocationRelativeTo(null);
spyDialog.setVisible(true);
}
/**
* Creates spy root pane for spy dialog.
*/
protected JRootPane createSpyRootPane() {
JRootPane rootPane = new JRootPane();
KeyStroke escapeKeyStroke = KeyStroke.getKeyStroke(KeyEvent.VK_ESCAPE, 0);
rootPane.registerKeyboardAction(new ActionListener() {
public void actionPerformed(ActionEvent actionEvent) {
spyGlass.setVisible(false);
spyDialog.setVisible(false);
}
}, escapeKeyStroke, JComponent.WHEN_IN_FOCUSED_WINDOW);
return rootPane;
}
}