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/*
* Jitsi, the OpenSource Java VoIP and Instant Messaging client.
*
* Copyright @ 2015 Atlassian Pty Ltd
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package net.java.sip.communicator.service.systray;
import java.util.*;
import net.java.sip.communicator.service.systray.event.*;
/**
* Abstract base implementation of <tt>PopupMessageHandler</tt> which
* facilitates the full implementation of the interface.
*
* @author Lubomir Marinov
*/
public abstract class AbstractPopupMessageHandler
implements PopupMessageHandler
{
/**
* The list of <tt>SystrayPopupMessageListener</tt>s registered with this
* instance.
*/
private final List<SystrayPopupMessageListener> popupMessageListeners
= new Vector<SystrayPopupMessageListener>();
/**
* Adds a <tt>SystrayPopupMessageListener</tt> to this instance so that it
* receives <tt>SystrayPopupMessageEvent</tt>s.
*
* @param listener the <tt>SystrayPopupMessageListener</tt> to be added to
* this instance
* @see PopupMessageHandler#addPopupMessageListener(
* SystrayPopupMessageListener)
*/
public void addPopupMessageListener(SystrayPopupMessageListener listener)
{
synchronized (popupMessageListeners)
{
if (!popupMessageListeners.contains(listener))
popupMessageListeners.add(listener);
}
}
/**
* Notifies the <tt>SystrayPopupMessageListener</tt>s registered with this
* instance that a <tt>SystrayPopupMessageEvent</tt> has occurred.
*
* @param evt the <tt>SystrayPopupMessageEvent</tt> to be fired to the
* <tt>SystrayPopupMessageListener</tt>s registered with this instance
*/
protected void firePopupMessageClicked(SystrayPopupMessageEvent evt)
{
List<SystrayPopupMessageListener> listeners;
synchronized (popupMessageListeners)
{
listeners
= new ArrayList<SystrayPopupMessageListener>(
popupMessageListeners);
}
for (SystrayPopupMessageListener listener : listeners)
listener.popupMessageClicked(evt);
}
/**
* Removes a <tt>SystrayPopupMessageListener</tt> from this instance so that
* it no longer receives <tt>SystrayPopupMessageEvent</tt>s.
*
* @param listener the <tt>SystrayPopupMessageListener</tt> to be removed
* from this instance
* @see PopupMessageHandler#removePopupMessageListener(
* SystrayPopupMessageListener)
*/
public void removePopupMessageListener(SystrayPopupMessageListener listener)
{
synchronized (popupMessageListeners)
{
popupMessageListeners.remove(listener);
}
}
}
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