/*
* Fires AccessibleActiveDescendant PropertyChangeEvent to notify listeners
* on the popup menu invoker that a popup list item has been selected
*/
private void fireActiveDescendant() {
if (JPopupMenu.this instanceof BasicComboPopup) {
// get the popup list
JList popupList = ((BasicComboPopup) JPopupMenu.this).getList();
if (popupList == null) {
return;
}
// get the first selected item
AccessibleContext ac = popupList.getAccessibleContext();
AccessibleSelection selection = ac.getAccessibleSelection();
if (selection == null) {
return;
}
Accessible a = selection.getAccessibleSelection(0);
if (a == null) {
return;
}
AccessibleContext selectedItem = a.getAccessibleContext();
// fire the event with the popup invoker as the source.
if (selectedItem != null && invoker != null) {
AccessibleContext invokerContext = invoker.getAccessibleContext();
if (invokerContext != null) {
// Check invokerContext because Component.getAccessibleContext
// returns null. Classes that extend Component are responsible
// for returning a non-null AccessibleContext.
invokerContext.firePropertyChange(
ACCESSIBLE_ACTIVE_DESCENDANT_PROPERTY, null, selectedItem);
}
}
}
}
public static void main(String args[]) throws Exception {
try {
UIManager.setLookAndFeel(new NimbusLookAndFeel());
} catch (Exception e) {
throw new RuntimeException(e);
}
SwingUtilities.invokeAndWait(
() -> {
JPanel panel0 = new JPanel();
JPanel panel2 = new JPanel();
BadPane badPane = new BadPane();
badPane.add("zero", panel0);
badPane.add("one", null); // no component
badPane.add("", panel2); // no title
badPane.add("", null); // no component, no title
// but give it that via a tabComponent
JPanel tabComponent = new JPanel();
JLabel tabComponentLabel = new JLabel("three");
tabComponent.add(tabComponentLabel);
badPane.setTabComponentAt(3, tabComponent);
JFrame frame = new JFrame();
frame.add(badPane);
frame.setSize(300, 300);
frame.setVisible(true);
try {
AccessibleContext ac = badPane.getAccessibleContext();
Accessible page0 = ac.getAccessibleChild(0);
if (page0 == null) {
// Not something being tested, but checking anyway
throw new RuntimeException("getAccessibleChild(0) is null");
}
Accessible page1 = ac.getAccessibleChild(1);
if (page1 == null) {
// Not something being tested, but checking anyway
throw new RuntimeException("getAccessibleChild(1) is null");
}
Accessible page2 = ac.getAccessibleChild(2);
Accessible page3 = ac.getAccessibleChild(3);
// page0 - page3 are JTabbedPane.Page, a private inner class
// and is an AccessibleContext
// and implements Accessible and AccessibleComponent
AccessibleContext pac0 = page0.getAccessibleContext();
AccessibleContext pac1 = page1.getAccessibleContext();
AccessibleContext pac2 = page2.getAccessibleContext();
AccessibleContext pac3 = page3.getAccessibleContext();
// test Page.getBounds
// ensure no IndexOutOfBoundsException
Rectangle r0 = pac0.getAccessibleComponent().getBounds();
// make sure second Bounds is different than first
Rectangle r1 = pac1.getAccessibleComponent().getBounds();
if (r1.equals(r0)) {
String msg = "Second tab should not have same bounds as first tab";
throw new RuntimeException(msg);
}
// test Page.getAccessibleStateSet
// At this point page 0 is selected
AccessibleStateSet accSS0 = pac0.getAccessibleStateSet();
if (!accSS0.contains(AccessibleState.SELECTED)) {
String msg = "Empty title -> AccessibleState.SELECTED not set";
throw new RuntimeException(msg);
}
// select second tab
badPane.setSelectedIndex(1);
AccessibleStateSet accSS1 = pac1.getAccessibleStateSet();
if (!accSS1.contains(AccessibleState.SELECTED)) {
String msg = "Second tab selected but AccessibleState.SELECTED not set";
throw new RuntimeException(msg);
}
// select third tab
badPane.setSelectedIndex(2);
AccessibleStateSet accSS2 = pac2.getAccessibleStateSet();
if (!accSS1.contains(AccessibleState.SELECTED)) {
String msg = "Third tab selected but AccessibleState.SELECTED not set";
throw new RuntimeException(msg);
}
// select fourth tab
badPane.setSelectedIndex(3);
AccessibleStateSet accSS3 = pac3.getAccessibleStateSet();
if (!accSS1.contains(AccessibleState.SELECTED)) {
String msg = "Fourth tab selected but AccessibleState.SELECTED not set";
throw new RuntimeException(msg);
}
// test Page.getAccessibleIndexInParent
if (pac0.getAccessibleIndexInParent() == -1) {
String msg = "Empty title -> negative AccessibleIndexInParent";
throw new RuntimeException(msg);
}
if (pac0.getAccessibleIndexInParent() != 0) {
String msg = "first tab is not at index 0 in parent";
throw new RuntimeException(msg);
}
if (pac1.getAccessibleIndexInParent() != 1) {
String msg = "second tab (null component) is not at index 1 in parent";
throw new RuntimeException(msg);
}
if (pac2.getAccessibleIndexInParent() != 2) {
String msg = "third tab (empty title) string is not at index 2 in parent";
throw new RuntimeException(msg);
}
if (pac3.getAccessibleIndexInParent() != 3) {
String msg =
"fourth tab (empty title, null component, has tabComponent) string is not at index 3 in parent";
throw new RuntimeException(msg);
}
// test Page.getAccessibleName
String accName = pac0.getAccessibleName();
if (!accName.equals("zero")) {
String msg = "Empty title -> empty AccessibleName";
throw new RuntimeException(msg);
}
// test Page.getAccessibleName when component is null
accName = pac1.getAccessibleName();
if (!accName.equals("one")) {
String msg = "AccessibleName of null panel not 'one'";
throw new RuntimeException(msg);
}
// test Page.setDisplayedMnemonicIndex
// Empty title -> IllegalArgumnetException
badPane.setDisplayedMnemonicIndexAt(0, 1);
// test Page.updateDisplayedMnemonicIndex
badPane.setMnemonicAt(0, KeyEvent.VK_Z);
if (badPane.getDisplayedMnemonicIndexAt(0) == -1) {
String msg = "Empty title -> getDisplayedMnemonicIndexAt failure";
throw new RuntimeException(msg);
}
} catch (Exception e) {
exception = e;
}
});
if (exception != null) {
System.out.println("Test failed: " + exception.getMessage());
throw exception;
} else {
System.out.println("Test passed.");
}
}