diff options
Diffstat (limited to 'org.eclipse.tips.core/src/org/eclipse/tips/core/TipProviderListenerManager.java')
-rw-r--r-- | org.eclipse.tips.core/src/org/eclipse/tips/core/TipProviderListenerManager.java | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/org.eclipse.tips.core/src/org/eclipse/tips/core/TipProviderListenerManager.java b/org.eclipse.tips.core/src/org/eclipse/tips/core/TipProviderListenerManager.java new file mode 100644 index 000000000..985cb0ecd --- /dev/null +++ b/org.eclipse.tips.core/src/org/eclipse/tips/core/TipProviderListenerManager.java @@ -0,0 +1,67 @@ +/**************************************************************************** + * Copyright (c) 2017, 2018 Remain Software + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * Wim Jongman <wim.jongman@remainsoftware.com> - initial API and implementation + *****************************************************************************/ +package org.eclipse.tips.core; + +import java.util.ArrayList; +import java.util.List; + +/** + * Class to manage provider listeners. + */ +public class TipProviderListenerManager { + + protected List<TipProviderListener> fListeners = new ArrayList<>(); + + /** + * Notifies all listeners that an event occurred. + * + * @param event + * the event + * @param provider + * the provider + */ + public void notifyListeners(int event, TipProvider provider) { + synchronized (fListeners) { + for (TipProviderListener tipProviderListener : fListeners) { + switch (event) { + case TipProviderListener.EVENT_READY: + tipProviderListener.providerReady(provider); + break; + } + } + } + } + + /** + * Adds a listener to the list of listeners. + * + * @param pProviderListener + * the listener to be notified + * @return this + */ + public TipProviderListenerManager addProviderListener(TipProviderListener pProviderListener) { + fListeners.remove(pProviderListener); + fListeners.add(pProviderListener); + return this; + } + + /** + * Removes a listener from the list of listeners. + * + * @param pProviderListener + * the listener to remove + * @return this + */ + public TipProviderListenerManager removeProviderListener(TipProviderListener pProviderListener) { + fListeners.remove(pProviderListener); + return this; + } +}
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