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Using explicit JavaImporter constructor to make namespace for swing and using it later with the "with" statement to get access to Java classes.

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In this way the example can be used in an application that does not use ImporterTopLevel.
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igor%mir2.org 2004-08-10 16:11:13 +00:00
parent c23fd4c1e9
commit 98d50120c7
1 changed files with 59 additions and 52 deletions
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111
js/rhino/examples/SwingApplication.js
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@ -5,66 +5,73 @@
* @author Roger E Critchlow, Jr.
*/
importPackage(Packages.javax.swing);
importPackage(Packages.java.awt);
importPackage(Packages.java.awt.event);
var swingNames = JavaImporter();
function createComponents() {
var labelPrefix = "Number of button clicks: ";
var numClicks = 0;
var label = new JLabel(labelPrefix + numClicks);
var button = new JButton("I'm a Swing button!");
button.mnemonic = KeyEvent.VK_I;
// Since Rhino 1.5R5 JS functions can be passed to Java method if
// corresponding argument type is Java interface with single method
// or all its methods have the same number of arguments and the
// corresponding arguments has the same type. See also comments for
// frame.addWindowListener bellow
button.addActionListener(function() {
numClicks += 1;
label.setText(labelPrefix + numClicks);
});
label.setLabelFor(button);
swingNames.importPackage(Packages.javax.swing);
swingNames.importPackage(Packages.java.awt);
swingNames.importPackage(Packages.java.awt.event);
/*
* An easy way to put space between a top-level container
* and its contents is to put the contents in a JPanel
* that has an "empty" border.
*/
var pane = new JPanel();
pane.border = BorderFactory.createEmptyBorder(30, //top
30, //left
10, //bottom
30); //right
pane.setLayout(new GridLayout(0, 1));
pane.add(button);
pane.add(label);
function createComponents()
{
with (swingNames) {
var labelPrefix = "Number of button clicks: ";
var numClicks = 0;
var label = new JLabel(labelPrefix + numClicks);
var button = new JButton("I'm a Swing button!");
button.mnemonic = KeyEvent.VK_I;
// Since Rhino 1.5R5 JS functions can be passed to Java method if
// corresponding argument type is Java interface with single method
// or all its methods have the same number of arguments and the
// corresponding arguments has the same type. See also comments for
// frame.addWindowListener bellow
button.addActionListener(function() {
numClicks += 1;
label.setText(labelPrefix + numClicks);
});
label.setLabelFor(button);
return pane;
/*
* An easy way to put space between a top-level container
* and its contents is to put the contents in a JPanel
* that has an "empty" border.
*/
var pane = new JPanel();
pane.border = BorderFactory.createEmptyBorder(30, //top
30, //left
10, //bottom
30); //right
pane.setLayout(new GridLayout(0, 1));
pane.add(button);
pane.add(label);
return pane;
}
}
try {
UIManager.setLookAndFeel(UIManager.getCrossPlatformLookAndFeelClassName());
} catch (e) { }
with (swingNames) {
try {
UIManager.
setLookAndFeel(UIManager.getCrossPlatformLookAndFeelClassName());
} catch (e) { }
//Create the top-level container and add contents to it.
var frame = new JFrame("SwingApplication");
frame.getContentPane().add(createComponents(), BorderLayout.CENTER);
//Create the top-level container and add contents to it.
var frame = new swingNames.JFrame("SwingApplication");
frame.getContentPane().add(createComponents(), BorderLayout.CENTER);
// Pass JS function as implementation of WindowListener. It is allowed since
// all methods in WindowListener have the same signature. To distinguish
// between methods Rhino passes to JS function the name of corresponding
// method as the last argument
frame.addWindowListener(function(event, methodName) {
print(event + " "+methodName);
if (methodName == "windowClosing") {
java.lang.System.exit(0);
}
});
// Pass JS function as implementation of WindowListener. It is allowed since
// all methods in WindowListener have the same signature. To distinguish
// between methods Rhino passes to JS function the name of corresponding
// method as the last argument
frame.addWindowListener(function(event, methodName) {
if (methodName == "windowClosing") {
java.lang.System.exit(0);
}
});
//Finish setting up the frame, and show it.
frame.pack();
frame.setVisible(true);
//Finish setting up the frame, and show it.
frame.pack();
frame.setVisible(true);
}