// WComponentPeer overrides
@SuppressWarnings("unchecked")
protected void disposeImpl() {
AppContext appContext = SunToolkit.targetToAppContext(target);
synchronized (appContext) {
List<WWindowPeer> l = (List<WWindowPeer>) appContext.get(ACTIVE_WINDOWS_KEY);
if (l != null) {
l.remove(this);
}
}
// Remove ourself from the Map of DisplayChangeListeners
GraphicsConfiguration gc = getGraphicsConfiguration();
((Win32GraphicsDevice) gc.getDevice()).removeDisplayChangedListener(this);
synchronized (getStateLock()) {
TranslucentWindowPainter currentPainter = painter;
if (currentPainter != null) {
currentPainter.flush();
// don't set the current one to null here; reduces the chances of
// MT issues (like NPEs)
}
}
super.disposeImpl();
}
/*
* The method maps the list of the active windows to the window's AppContext,
* then the method registers ActiveWindowListener, GuiDisposedListener listeners;
* it executes the initilialization only once per AppContext.
*/
@SuppressWarnings("unchecked")
private static void initActiveWindowsTracking(Window w) {
AppContext appContext = AppContext.getAppContext();
synchronized (appContext) {
List<WWindowPeer> l = (List<WWindowPeer>) appContext.get(ACTIVE_WINDOWS_KEY);
if (l == null) {
l = new LinkedList<WWindowPeer>();
appContext.put(ACTIVE_WINDOWS_KEY, l);
appContext.addPropertyChangeListener(AppContext.GUI_DISPOSED, guiDisposedListener);
KeyboardFocusManager kfm = KeyboardFocusManager.getCurrentKeyboardFocusManager();
kfm.addPropertyChangeListener("activeWindow", activeWindowListener);
}
}
}
/*
* Returns all the ever active windows from the current AppContext.
* The list is sorted by the time of activation, so the latest
* active window is always at the end.
*/
@SuppressWarnings("unchecked")
public static long[] getActiveWindowHandles() {
AppContext appContext = AppContext.getAppContext();
synchronized (appContext) {
List<WWindowPeer> l = (List<WWindowPeer>) appContext.get(ACTIVE_WINDOWS_KEY);
if (l == null) {
return null;
}
long[] result = new long[l.size()];
for (int j = 0; j < l.size(); j++) {
result[j] = l.get(j).getHWnd();
}
return result;
}
}
public void propertyChange(PropertyChangeEvent e) {
Window w = (Window) e.getNewValue();
if (w == null) {
return;
}
AppContext appContext = SunToolkit.targetToAppContext(w);
synchronized (appContext) {
WWindowPeer wp = (WWindowPeer) w.getPeer();
// add/move wp to the end of the list
List<WWindowPeer> l = (List<WWindowPeer>) appContext.get(ACTIVE_WINDOWS_KEY);
if (l != null) {
l.remove(wp);
l.add(wp);
}
}
}