下面列出了怎么用java.awt.datatransfer.FlavorListener的API类实例代码及写法，或者点击链接到github查看源代码。
public synchronized void removeFlavorListener(FlavorListener listener) {
if (listener == null) {
return;
}
AppContext appContext = AppContext.getAppContext();
EventListenerAggregate contextFlavorListeners = (EventListenerAggregate)
appContext.get(CLIPBOARD_FLAVOR_LISTENER_KEY);
if (contextFlavorListeners == null){
//else we throw NullPointerException, but it is forbidden
return;
}
if (contextFlavorListeners.remove(listener) &&
--numberOfFlavorListeners == 0) {
unregisterClipboardViewerChecked();
currentFormats = null;
}
}
public synchronized void removeFlavorListener(FlavorListener listener) {
if (listener == null) {
return;
}
AppContext appContext = AppContext.getAppContext();
EventListenerAggregate contextFlavorListeners = (EventListenerAggregate)
appContext.get(CLIPBOARD_FLAVOR_LISTENER_KEY);
if (contextFlavorListeners == null){
//else we throw NullPointerException, but it is forbidden
return;
}
if (contextFlavorListeners.remove(listener) &&
--numberOfFlavorListeners == 0) {
unregisterClipboardViewerChecked();
currentFormats = null;
}
}
public synchronized void removeFlavorListener(FlavorListener listener) {
if (listener == null) {
return;
}
AppContext appContext = AppContext.getAppContext();
EventListenerAggregate contextFlavorListeners = (EventListenerAggregate)
appContext.get(CLIPBOARD_FLAVOR_LISTENER_KEY);
if (contextFlavorListeners == null){
//else we throw NullPointerException, but it is forbidden
return;
}
if (contextFlavorListeners.remove(listener) &&
--numberOfFlavorListeners == 0) {
unregisterClipboardViewerChecked();
currentFormats = null;
}
}
public synchronized void removeFlavorListener(FlavorListener listener) {
if (listener == null) {
return;
}
AppContext appContext = AppContext.getAppContext();
EventListenerAggregate contextFlavorListeners = (EventListenerAggregate)
appContext.get(CLIPBOARD_FLAVOR_LISTENER_KEY);
if (contextFlavorListeners == null){
//else we throw NullPointerException, but it is forbidden
return;
}
if (contextFlavorListeners.remove(listener) &&
--numberOfFlavorListeners == 0) {
unregisterClipboardViewerChecked();
currentFormats = null;
}
}
private static void makeSureSystemClipboardContainsString(
Clipboard sys, NbClipboard clip
) throws InterruptedException {
final CountDownLatch wait = new CountDownLatch(1);
class FL implements FlavorListener {
@Override
public void flavorsChanged(FlavorEvent e) {
wait.countDown();
}
}
FL fl = new FL();
sys.addFlavorListener(fl);
StringSelection ss = new StringSelection("empty");
clip.setContents(ss, ss);
wait.await();
}
public synchronized void removeFlavorListener(FlavorListener listener) {
if (listener == null) {
return;
}
AppContext appContext = AppContext.getAppContext();
EventListenerAggregate contextFlavorListeners = (EventListenerAggregate)
appContext.get(CLIPBOARD_FLAVOR_LISTENER_KEY);
if (contextFlavorListeners == null){
//else we throw NullPointerException, but it is forbidden
return;
}
if (contextFlavorListeners.remove(listener) &&
--numberOfFlavorListeners == 0) {
unregisterClipboardViewerChecked();
currentFormats = null;
}
}
public synchronized void addFlavorListener(FlavorListener listener) {
if (listener == null) {
return;
}
AppContext appContext = AppContext.getAppContext();
Set<FlavorListener> flavorListeners = getFlavorListeners(appContext);
if (flavorListeners == null) {
flavorListeners = new HashSet<>();
appContext.put(CLIPBOARD_FLAVOR_LISTENER_KEY, flavorListeners);
}
flavorListeners.add(listener);
if (numberOfFlavorListeners++ == 0) {
long[] currentFormats = null;
try {
openClipboard(null);
currentFormats = getClipboardFormats();
} catch (final IllegalStateException ignored) {
} finally {
closeClipboard();
}
this.currentFormats = currentFormats;
registerClipboardViewerChecked();
}
}
public synchronized void addFlavorListener(FlavorListener listener) {
if (listener == null) {
return;
}
AppContext appContext = AppContext.getAppContext();
Set<FlavorListener> flavorListeners = getFlavorListeners(appContext);
if (flavorListeners == null) {
flavorListeners = new HashSet<>();
appContext.put(CLIPBOARD_FLAVOR_LISTENER_KEY, flavorListeners);
}
flavorListeners.add(listener);
if (numberOfFlavorListeners++ == 0) {
long[] currentFormats = null;
try {
openClipboard(null);
currentFormats = getClipboardFormats();
} catch (final IllegalStateException ignored) {
} finally {
closeClipboard();
}
this.currentFormats = currentFormats;
registerClipboardViewerChecked();
}
}
public synchronized void removeFlavorListener(FlavorListener listener) {
if (listener == null) {
return;
}
AppContext appContext = AppContext.getAppContext();
EventListenerAggregate contextFlavorListeners = (EventListenerAggregate)
appContext.get(CLIPBOARD_FLAVOR_LISTENER_KEY);
if (contextFlavorListeners == null){
//else we throw NullPointerException, but it is forbidden
return;
}
if (contextFlavorListeners.remove(listener) &&
--numberOfFlavorListeners == 0) {
unregisterClipboardViewerChecked();
currentFormats = null;
}
}
public synchronized void removeFlavorListener(FlavorListener listener) {
if (listener == null) {
return;
}
AppContext appContext = AppContext.getAppContext();
EventListenerAggregate contextFlavorListeners = (EventListenerAggregate)
appContext.get(CLIPBOARD_FLAVOR_LISTENER_KEY);
if (contextFlavorListeners == null){
//else we throw NullPointerException, but it is forbidden
return;
}
if (contextFlavorListeners.remove(listener) &&
--numberOfFlavorListeners == 0) {
unregisterClipboardViewerChecked();
currentFormats = null;
}
}
public synchronized void removeFlavorListener(FlavorListener listener) {
if (listener == null) {
return;
}
AppContext appContext = AppContext.getAppContext();
EventListenerAggregate contextFlavorListeners = (EventListenerAggregate)
appContext.get(CLIPBOARD_FLAVOR_LISTENER_KEY);
if (contextFlavorListeners == null){
//else we throw NullPointerException, but it is forbidden
return;
}
if (contextFlavorListeners.remove(listener) &&
--numberOfFlavorListeners == 0) {
unregisterClipboardViewerChecked();
currentDataFlavors = null;
}
}
public synchronized void removeFlavorListener(FlavorListener listener) {
if (listener == null) {
return;
}
AppContext appContext = AppContext.getAppContext();
EventListenerAggregate contextFlavorListeners = (EventListenerAggregate)
appContext.get(CLIPBOARD_FLAVOR_LISTENER_KEY);
if (contextFlavorListeners == null){
//else we throw NullPointerException, but it is forbidden
return;
}
if (contextFlavorListeners.remove(listener) &&
--numberOfFlavorListeners == 0) {
unregisterClipboardViewerChecked();
currentDataFlavors = null;
}
}
public synchronized void removeFlavorListener(FlavorListener listener) {
if (listener == null) {
return;
}
AppContext appContext = AppContext.getAppContext();
EventListenerAggregate contextFlavorListeners = (EventListenerAggregate)
appContext.get(CLIPBOARD_FLAVOR_LISTENER_KEY);
if (contextFlavorListeners == null){
//else we throw NullPointerException, but it is forbidden
return;
}
if (contextFlavorListeners.remove(listener) &&
--numberOfFlavorListeners == 0) {
unregisterClipboardViewerChecked();
currentFormats = null;
}
}
public synchronized void removeFlavorListener(FlavorListener listener) {
if (listener == null) {
return;
}
AppContext appContext = AppContext.getAppContext();
EventListenerAggregate contextFlavorListeners = (EventListenerAggregate)
appContext.get(CLIPBOARD_FLAVOR_LISTENER_KEY);
if (contextFlavorListeners == null){
//else we throw NullPointerException, but it is forbidden
return;
}
if (contextFlavorListeners.remove(listener) &&
--numberOfFlavorListeners == 0) {
unregisterClipboardViewerChecked();
currentDataFlavors = null;
}
}
public synchronized void removeFlavorListener(FlavorListener listener) {
if (listener == null) {
return;
}
AppContext appContext = AppContext.getAppContext();
EventListenerAggregate contextFlavorListeners = (EventListenerAggregate)
appContext.get(CLIPBOARD_FLAVOR_LISTENER_KEY);
if (contextFlavorListeners == null){
//else we throw NullPointerException, but it is forbidden
return;
}
if (contextFlavorListeners.remove(listener) &&
--numberOfFlavorListeners == 0) {
unregisterClipboardViewerChecked();
currentDataFlavors = null;
}
}
@Override
public synchronized void addFlavorListener(FlavorListener listener) {
Boolean prev = FIRING.get();
try {
FIRING.set(true);
super.addFlavorListener(listener);
} finally {
FIRING.set(prev);
}
}
final void fireChange() {
Boolean prev = FIRING.get();
try {
FIRING.set(true);
FlavorEvent e = new FlavorEvent(this);
fireClipboardChange();
for (FlavorListener l : super.getFlavorListeners()) {
l.flavorsChanged(e);
}
} finally {
FIRING.set(prev);
}
}
private void registerListener() {
if (flavL == null) {
Clipboard c = getClipboard();
if (c != null) {
flavL = WeakListeners.create(FlavorListener.class, this, c);
c.addFlavorListener(flavL);
}
}
}
@Override
public void setContents (Transferable t, ClipboardOwner o) {
super.setContents (t, o);
fireClipboardChange ();
FlavorEvent ev = new FlavorEvent(this);
for (FlavorListener flavorListener : getFlavorListeners()) {
flavorListener.flavorsChanged(ev);
}
}
public synchronized void removeFlavorListener(FlavorListener listener) {
if (listener == null) {
return;
}
Set<FlavorListener> flavorListeners = getFlavorListeners(AppContext.getAppContext());
if (flavorListeners == null){
//else we throw NullPointerException, but it is forbidden
return;
}
if (flavorListeners.remove(listener) && --numberOfFlavorListeners == 0) {
unregisterClipboardViewerChecked();
currentFormats = null;
}
}
/**
* Checks change of the {@code DataFlavor}s and, if necessary,
* posts notifications on {@code FlavorEvent}s to the
* AppContexts' EDTs.
* The parameter {@code formats} is null iff we have just
* failed to get formats available on the clipboard.
*
* @param formats data formats that have just been retrieved from
* this clipboard
*/
protected final void checkChange(final long[] formats) {
if (Arrays.equals(formats, currentFormats)) {
// we've been able to successfully get available on the clipboard
// DataFlavors this and previous time and they are coincident;
// don't notify
return;
}
currentFormats = formats;
for (final AppContext appContext : AppContext.getAppContexts()) {
if (appContext == null || appContext.isDisposed()) {
continue;
}
Set<FlavorListener> flavorListeners = getFlavorListeners(appContext);
if (flavorListeners != null) {
for (FlavorListener listener : flavorListeners) {
if (listener != null) {
PeerEvent peerEvent = new PeerEvent(this,
() -> listener.flavorsChanged(new FlavorEvent(SunClipboard.this)),
PeerEvent.PRIORITY_EVENT);
SunToolkit.postEvent(appContext, peerEvent);
}
}
}
}
}
public synchronized void removeFlavorListener(FlavorListener listener) {
if (listener == null) {
return;
}
Set<FlavorListener> flavorListeners = getFlavorListeners(AppContext.getAppContext());
if (flavorListeners == null){
//else we throw NullPointerException, but it is forbidden
return;
}
if (flavorListeners.remove(listener) && --numberOfFlavorListeners == 0) {
unregisterClipboardViewerChecked();
currentFormats = null;
}
}
/**
* Checks change of the {@code DataFlavor}s and, if necessary,
* posts notifications on {@code FlavorEvent}s to the
* AppContexts' EDTs.
* The parameter {@code formats} is null iff we have just
* failed to get formats available on the clipboard.
*
* @param formats data formats that have just been retrieved from
* this clipboard
*/
protected final void checkChange(final long[] formats) {
if (Arrays.equals(formats, currentFormats)) {
// we've been able to successfully get available on the clipboard
// DataFlavors this and previous time and they are coincident;
// don't notify
return;
}
currentFormats = formats;
for (final AppContext appContext : AppContext.getAppContexts()) {
if (appContext == null || appContext.isDisposed()) {
continue;
}
Set<FlavorListener> flavorListeners = getFlavorListeners(appContext);
if (flavorListeners != null) {
for (FlavorListener listener : flavorListeners) {
if (listener != null) {
PeerEvent peerEvent = new PeerEvent(this,
() -> listener.flavorsChanged(new FlavorEvent(SunClipboard.this)),
PeerEvent.PRIORITY_EVENT);
SunToolkit.postEvent(appContext, peerEvent);
}
}
}
}
}
public synchronized FlavorListener[] getFlavorListeners() {
EventListenerAggregate contextFlavorListeners = (EventListenerAggregate)
AppContext.getAppContext().get(CLIPBOARD_FLAVOR_LISTENER_KEY);
return contextFlavorListeners == null ? new FlavorListener[0] :
(FlavorListener[])contextFlavorListeners.getListenersCopy();
}
public synchronized FlavorListener[] getFlavorListeners() {
EventListenerAggregate contextFlavorListeners = (EventListenerAggregate)
AppContext.getAppContext().get(CLIPBOARD_FLAVOR_LISTENER_KEY);
return contextFlavorListeners == null ? new FlavorListener[0] :
(FlavorListener[])contextFlavorListeners.getListenersCopy();
}
public synchronized FlavorListener[] getFlavorListeners() {
EventListenerAggregate contextFlavorListeners = (EventListenerAggregate)
AppContext.getAppContext().get(CLIPBOARD_FLAVOR_LISTENER_KEY);
return contextFlavorListeners == null ? new FlavorListener[0] :
(FlavorListener[])contextFlavorListeners.getListenersCopy();
}
public synchronized FlavorListener[] getFlavorListeners() {
EventListenerAggregate contextFlavorListeners = (EventListenerAggregate)
AppContext.getAppContext().get(CLIPBOARD_FLAVOR_LISTENER_KEY);
return contextFlavorListeners == null ? new FlavorListener[0] :
(FlavorListener[])contextFlavorListeners.getListenersCopy();
}
@Override
public FlavorListener[] getFlavorListeners() {
return new FlavorListener[0];
}
public synchronized FlavorListener[] getFlavorListeners() {
EventListenerAggregate contextFlavorListeners = (EventListenerAggregate)
AppContext.getAppContext().get(CLIPBOARD_FLAVOR_LISTENER_KEY);
return contextFlavorListeners == null ? new FlavorListener[0] :
(FlavorListener[])contextFlavorListeners.getListenersCopy();
}
@SuppressWarnings("unchecked")
private Set<FlavorListener> getFlavorListeners(AppContext appContext) {
return (Set<FlavorListener>)appContext.get(CLIPBOARD_FLAVOR_LISTENER_KEY);
}