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v0.4.3b: improvements to the signal class

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This commit is contained in:
Evan Debenham 2016-11-02 18:53:38 -04:00
parent 10e1a17704
commit 6ee0a30db8
1 changed files with 9 additions and 14 deletions
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23
SPD-classes/src/main/java/com/watabou/utils/Signal.java
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@ -39,7 +39,7 @@ public class Signal<T> {
this.stackMode = stackMode; this.stackMode = stackMode;
} }
public void add( Listener<T> listener ) { public synchronized void add( Listener<T> listener ) {
if (!listeners.contains( listener )) { if (!listeners.contains( listener )) {
if (stackMode) { if (stackMode) {
listeners.addFirst( listener ); listeners.addFirst( listener );
@ -49,33 +49,28 @@ public class Signal<T> {
} }
} }
public void remove( Listener<T> listener ) { public synchronized void remove( Listener<T> listener ) {
listeners.remove( listener ); listeners.remove( listener );
} }
public void removeAll() { public synchronized void removeAll() {
listeners.clear(); listeners.clear();
} }
public void replace( Listener<T> listener ) { public synchronized void replace( Listener<T> listener ) {
removeAll(); removeAll();
add( listener ); add( listener );
} }
public int numListeners() { public synchronized int numListeners() {
return listeners.size(); return listeners.size();
} }
public void dispatch( T t ) { public synchronized void dispatch( T t ) {
@SuppressWarnings("unchecked")
Listener<T>[] list = listeners.toArray( new Listener[0] );
canceled = false; canceled = false;
for (int i=0; i < list.length; i++) { for (Listener<T> listener : listeners) {
Listener<T> listener = list[i];
if (listeners.contains( listener )) { if (listeners.contains( listener )) {
listener.onSignal( t ); listener.onSignal( t );
if (canceled) { if (canceled) {