package com.sun.javafx.collections;
import com.sun.javafx.binding.ExpressionHelperBase;
import javafx.beans.InvalidationListener;
import javafx.collections.SetChangeListener;
import com.sun.javafx.logging.PlatformLogger;
import java.util.Arrays;
public abstract class SetListenerHelper<E> extends ExpressionHelperBase {
public static <E> SetListenerHelper<E> addListener(SetListenerHelper<E> helper, InvalidationListener listener) {
if (listener == null) {
throw new NullPointerException();
}
return (helper == null)? new SingleInvalidation<E>(listener) : helper.addListener(listener);
}
public static <E> SetListenerHelper<E> removeListener(SetListenerHelper<E> helper, InvalidationListener listener) {
if (listener == null) {
throw new NullPointerException();
}
return (helper == null)? null : helper.removeListener(listener);
}
public static <E> SetListenerHelper<E> addListener(SetListenerHelper<E> helper, SetChangeListener<? super E> listener) {
if (listener == null) {
throw new NullPointerException();
}
return (helper == null)? new SingleChange<E>(listener) : helper.addListener(listener);
}
public static <E> SetListenerHelper<E> removeListener(SetListenerHelper<E> helper, SetChangeListener<? super E> listener) {
if (listener == null) {
throw new NullPointerException();
}
return (helper == null)? null : helper.removeListener(listener);
}
public static <E> void fireValueChangedEvent(SetListenerHelper<E> helper, SetChangeListener.Change<? extends E> change) {
if (helper != null) {
helper.fireValueChangedEvent(change);
}
}
public static <E> boolean hasListeners(SetListenerHelper<E> helper) {
return helper != null;
}
protected abstract SetListenerHelper<E> addListener(InvalidationListener listener);
protected abstract SetListenerHelper<E> removeListener(InvalidationListener listener);
protected abstract SetListenerHelper<E> addListener(SetChangeListener<? super E> listener);
protected abstract SetListenerHelper<E> removeListener(SetChangeListener<? super E> listener);
protected abstract void fireValueChangedEvent(SetChangeListener.Change<? extends E> change);
private static class SingleInvalidation<E> extends SetListenerHelper<E> {
private final InvalidationListener listener;
private SingleInvalidation(InvalidationListener listener) {
this.listener = listener;
}
@Override
protected SetListenerHelper<E> addListener(InvalidationListener listener) {
return new Generic<E>(this.listener, listener);
}
@Override
protected SetListenerHelper<E> removeListener(InvalidationListener listener) {
return (listener.equals(this.listener))? null : this;
}
@Override
protected SetListenerHelper<E> addListener(SetChangeListener<? super E> listener) {
return new Generic<E>(this.listener, listener);
}
@Override
protected SetListenerHelper<E> removeListener(SetChangeListener<? super E> listener) {
return this;
}
@Override
protected void fireValueChangedEvent(SetChangeListener.Change<? extends E> change) {
try {
listener.invalidated(change.getSet());
} catch (Exception e) {
Thread.currentThread().getUncaughtExceptionHandler().uncaughtException(Thread.currentThread(), e);
}
}
}
private static class SingleChange<E> extends SetListenerHelper<E> {
private final SetChangeListener<? super E> listener;
private SingleChange(SetChangeListener<? super E> listener) {
this.listener = listener;
}
@Override
protected SetListenerHelper<E> addListener(InvalidationListener listener) {
return new Generic<E>(listener, this.listener);
}
@Override
protected SetListenerHelper<E> removeListener(InvalidationListener listener) {
return this;
}
@Override
protected SetListenerHelper<E> addListener(SetChangeListener<? super E> listener) {
return new Generic<E>(this.listener, listener);
}
@Override
protected SetListenerHelper<E> removeListener(SetChangeListener<? super E> listener) {
return (listener.equals(this.listener))? null : this;
}
@Override
protected void fireValueChangedEvent(SetChangeListener.Change<? extends E> change) {
try {
listener.onChanged(change);
} catch (Exception e) {
Thread.currentThread().getUncaughtExceptionHandler().uncaughtException(Thread.currentThread(), e);
}
}
}
private static class Generic<E> extends SetListenerHelper<E> {
private InvalidationListener[] invalidationListeners;
private SetChangeListener<? super E>[] changeListeners;
private int invalidationSize;
private int changeSize;
private boolean locked;
private Generic(InvalidationListener listener0, InvalidationListener listener1) {
this.invalidationListeners = new InvalidationListener[] {listener0, listener1};
this.invalidationSize = 2;
}
private Generic(SetChangeListener<? super E> listener0, SetChangeListener<? super E> listener1) {
this.changeListeners = new SetChangeListener[] {listener0, listener1};
this.changeSize = 2;
}
private Generic(InvalidationListener invalidationListener, SetChangeListener<? super E> changeListener) {
this.invalidationListeners = new InvalidationListener[] {invalidationListener};
this.invalidationSize = 1;
this.changeListeners = new SetChangeListener[] {changeListener};
this.changeSize = 1;
}
@Override
protected Generic<E> addListener(InvalidationListener listener) {
if (invalidationListeners == null) {
invalidationListeners = new InvalidationListener[] {listener};
invalidationSize = 1;
} else {
final int oldCapacity = invalidationListeners.length;
if (locked) {
final int newCapacity = (invalidationSize < oldCapacity)? oldCapacity : (oldCapacity * 3)/2 + 1;
invalidationListeners = Arrays.copyOf(invalidationListeners, newCapacity);
} else if (invalidationSize == oldCapacity) {
invalidationSize = trim(invalidationSize, invalidationListeners);
if (invalidationSize == oldCapacity) {
final int newCapacity = (oldCapacity * 3)/2 + 1;
invalidationListeners = Arrays.copyOf(invalidationListeners, newCapacity);
}
}
invalidationListeners[invalidationSize++] = listener;
}
return this;
}
@Override
protected SetListenerHelper<E> removeListener(InvalidationListener listener) {
if (invalidationListeners != null) {
for (int index = 0; index < invalidationSize; index++) {
if (listener.equals(invalidationListeners[index])) {
if (invalidationSize == 1) {
if (changeSize == 1) {
return new SingleChange<E>(changeListeners[0]);
}
invalidationListeners = null;
invalidationSize = 0;
} else if ((invalidationSize == 2) && (changeSize == 0)) {
return new SingleInvalidation<E>(invalidationListeners[1-index]);
} else {
final int numMoved = invalidationSize - index - 1;
final InvalidationListener[] oldListeners = invalidationListeners;
if (locked) {
invalidationListeners = new InvalidationListener[invalidationListeners.length];
System.arraycopy(oldListeners, 0, invalidationListeners, 0, index);
}
if (numMoved > 0) {
System.arraycopy(oldListeners, index+1, invalidationListeners, index, numMoved);
}
invalidationSize--;
if (!locked) {
invalidationListeners[invalidationSize] = null;
}
}
break;
}
}
}
return this;
}
@Override
protected SetListenerHelper<E> addListener(SetChangeListener<? super E> listener) {
if (changeListeners == null) {
changeListeners = new SetChangeListener[] {listener};
changeSize = 1;
} else {
final int oldCapacity = changeListeners.length;
if (locked) {
final int newCapacity = (changeSize < oldCapacity)? oldCapacity : (oldCapacity * 3)/2 + 1;
changeListeners = Arrays.copyOf(changeListeners, newCapacity);
} else if (changeSize == oldCapacity) {
changeSize = trim(changeSize, changeListeners);
if (changeSize == oldCapacity) {
final int newCapacity = (oldCapacity * 3)/2 + 1;
changeListeners = Arrays.copyOf(changeListeners, newCapacity);
}
}
changeListeners[changeSize++] = listener;
}
return this;
}
@Override
protected SetListenerHelper<E> removeListener(SetChangeListener<? super E> listener) {
if (changeListeners != null) {
for (int index = 0; index < changeSize; index++) {
if (listener.equals(changeListeners[index])) {
if (changeSize == 1) {
if (invalidationSize == 1) {
return new SingleInvalidation<E>(invalidationListeners[0]);
}
changeListeners = null;
changeSize = 0;
} else if ((changeSize == 2) && (invalidationSize == 0)) {
return new SingleChange<E>(changeListeners[1-index]);
} else {
final int numMoved = changeSize - index - 1;
final SetChangeListener<? super E>[] oldListeners = changeListeners;
if (locked) {
changeListeners = new SetChangeListener[changeListeners.length];
System.arraycopy(oldListeners, 0, changeListeners, 0, index);
}
if (numMoved > 0) {
System.arraycopy(oldListeners, index+1, changeListeners, index, numMoved);
}
changeSize--;
if (!locked) {
changeListeners[changeSize] = null;
}
}
break;
}
}
}
return this;
}
@Override
protected void fireValueChangedEvent(SetChangeListener.Change<? extends E> change) {
final InvalidationListener[] curInvalidationList = invalidationListeners;
final int curInvalidationSize = invalidationSize;
final SetChangeListener<? super E>[] curChangeList = changeListeners;
final int curChangeSize = changeSize;
try {
locked = true;
for (int i = 0; i < curInvalidationSize; i++) {
try {
curInvalidationList[i].invalidated(change.getSet());
} catch (Exception e) {
Thread.currentThread().getUncaughtExceptionHandler().uncaughtException(Thread.currentThread(), e);
}
}
for (int i = 0; i < curChangeSize; i++) {
try {
curChangeList[i].onChanged(change);
} catch (Exception e) {
Thread.currentThread().getUncaughtExceptionHandler().uncaughtException(Thread.currentThread(), e);
}
}
} finally {
locked = false;
}
}
}
}