/** * Changes the current video settings for the peer with the desired quality settings and inform * the peer to stream the video with those settings. * * @param preset the desired video settings * @throws MediaException when the re-invite fails */ @Override public void setPreferredRemoteSendMaxPreset(QualityPreset preset) throws MediaException { QualityControl qControls = getMediaQualityControl(); if (qControls != null) { qControls.setRemoteSendMaxPreset(preset); try { // re-invites the peer with the new settings peer.sendReInvite(); } catch (Throwable cause) { String message = "Failed to re-invite for video quality change."; logger.error(message, cause); throw new MediaException(message, MediaException.GENERAL_ERROR, cause); } } }
/** * A wrapper of media quality control. * * @author Damian Minkov */ public class QualityControlWrapper extends AbstractQualityControlWrapper<CallPeerSipImpl> { /** Our class logger. */ private static final Logger logger = Logger.getLogger(QualityControlWrapper.class); /** * Creates quality control for peer. * * @param peer peer */ QualityControlWrapper(CallPeerSipImpl peer) { super(peer); } /** * Changes the current video settings for the peer with the desired quality settings and inform * the peer to stream the video with those settings. * * @param preset the desired video settings * @throws MediaException when the re-invite fails */ @Override public void setPreferredRemoteSendMaxPreset(QualityPreset preset) throws MediaException { QualityControl qControls = getMediaQualityControl(); if (qControls != null) { qControls.setRemoteSendMaxPreset(preset); try { // re-invites the peer with the new settings peer.sendReInvite(); } catch (Throwable cause) { String message = "Failed to re-invite for video quality change."; logger.error(message, cause); throw new MediaException(message, MediaException.GENERAL_ERROR, cause); } } } }
/** * Implements {@link PacketListener}. Notifies this instance that a specific {@link Packet} (which * this instance has already expressed interest into by returning <tt>true</tt> from {@link * #accept(Packet)}) has been received. * * @param packet the <tt>Packet</tt> which has been received and which this instance is given a * chance to process */ public void processPacket(Packet packet) { /* * As we do elsewhere, acknowledge the receipt of the Packet first and * then go about our business with it. */ IQ iq = (IQ) packet; if (iq.getType() == IQ.Type.SET) protocolProvider.getConnection().sendPacket(IQ.createResultIQ(iq)); /* * Now that the acknowledging is out of the way, do go about our * business with the Packet. */ ColibriConferenceIQ conferenceIQ = (ColibriConferenceIQ) iq; boolean interrupted = false; try { processColibriConferenceIQ(conferenceIQ); } catch (Throwable t) { logger.error( "An error occurred during the processing of a " + packet.getClass().getName() + " packet", t); if (t instanceof InterruptedException) { /* * We cleared the interrupted state of the current Thread by * catching the InterruptedException. However, we do not really * care whether the current Thread has been interrupted - we * caught the InterruptedException because we want to swallow * any Throwable. Consequently, we should better restore the * interrupted state. */ interrupted = true; } else if (t instanceof ThreadDeath) throw (ThreadDeath) t; } if (interrupted) Thread.currentThread().interrupt(); }
/** * The <tt>OneToOneCallPeerPanel</tt> is the panel containing data for a call peer in a given call. * It contains information like call peer name, photo, call duration, etc. * * @author Yana Stamcheva * @author Lyubomir Marinov * @author Sebastien Vincent * @author Adam Netocny */ public class OneToOneCallPeerPanel extends TransparentPanel implements SwingCallPeerRenderer, PropertyChangeListener, Skinnable { /** * The <tt>Logger</tt> used by the <tt>OneToOneCallPeerPanel</tt> class and its instances for * logging output. */ private static final Logger logger = Logger.getLogger(OneToOneCallPeerPanel.class); /** Serial version UID. */ private static final long serialVersionUID = 0L; /** The <tt>CallPeer</tt>, which is rendered in this panel. */ private final CallPeer callPeer; /** The <tt>Call</tt>, which is rendered in this panel. */ private final Call call; /** * The <tt>CallPeerAdapter</tt> which implements common <tt>CallPeer</tt>-related listeners on * behalf of this instance. */ private final CallPeerAdapter callPeerAdapter; /** The renderer of the call. */ private final SwingCallRenderer callRenderer; /** The component showing the status of the underlying call peer. */ private final JLabel callStatusLabel = new JLabel(); /** The center component. */ private final VideoContainer center; /** * The AWT <tt>Component</tt> which implements a button which allows closing/hiding the visual * <tt>Component</tt> which depicts the video streaming from the local peer/user to the remote * peer(s). */ private Component closeLocalVisualComponentButton; /** * A listener to desktop sharing granted/revoked events and to mouse and keyboard interaction with * the remote video displaying the remote desktop. */ private final DesktopSharingMouseAndKeyboardListener desktopSharingMouseAndKeyboardListener; /** * The indicator which determines whether {@link #dispose()} has already been invoked on this * instance. If <tt>true</tt>, this instance is considered non-functional and is to be left to the * garbage collector. */ private boolean disposed = false; /** The DTMF label. */ private final JLabel dtmfLabel = new JLabel(); /** The component responsible for displaying an error message. */ private JTextComponent errorMessageComponent; /** The label showing whether the call is on or off hold. */ private final JLabel holdStatusLabel = new JLabel(); /** Sound local level label. */ private InputVolumeControlButton localLevel; /** * The <tt>Component</tt> which {@link #updateViewFromModelInEventDispatchThread()} last added to * {@link #center} as the visual <tt>Component</tt> displaying the video streaming from the local * peer/user to the remote peer(s). * * <p><b>Warning</b>: It is not to be used for any other purposes because it may not represent the * current state of the model of this view. */ private Component localVideo; /** The label showing whether the voice has been set to mute. */ private final JLabel muteStatusLabel = new JLabel(); /** The <tt>Icon</tt> which represents the avatar of the associated call peer. */ private ImageIcon peerImage; /** The name of the peer. */ private String peerName; /** The label containing the user photo. */ private final JLabel photoLabel; /** Sound remote level label. */ private Component remoteLevel; /** * The <tt>Component</tt> which {@link #updateViewFromModelInEventDispatchThread()} last added to * {@link #center} as the visual <tt>Component</tt> displaying the video streaming from the remote * peer(s) to the local peer/user. * * <p><b>Warning</b>: It is not to be used for any other purposes because it may not represent the * current state of the model of this view. */ private Component remoteVideo; /** Current id for security image. */ private ImageID securityImageID = ImageLoader.SECURE_BUTTON_OFF; /** The panel containing security related components. */ private SecurityPanel<?> securityPanel; /** The security status of the peer */ private final SecurityStatusLabel securityStatusLabel = new SecurityStatusLabel(); /** The status bar component. */ private final Component statusBar; /** The facility which aids this instance in the dealing with the video-related information. */ private final UIVideoHandler2 uiVideoHandler; /** * The <tt>Observer</tt> which listens to changes in the video-related information detected and * reported by {@link #uiVideoHandler}. */ private final Observer uiVideoHandlerObserver = new Observer() { public void update(Observable o, Object arg) { updateViewFromModel(); } }; /** * The <tt>Runnable</tt> which is scheduled by {@link #updateViewFromModel()} for execution in the * AWT event dispatching thread in order to invoke {@link * #updateViewFromModelInEventDispatchThread()}. */ private final Runnable updateViewFromModelInEventDispatchThread = new Runnable() { public void run() { /* * We receive events/notifications from various threads and we * respond to them in the AWT event dispatching thread. It is * possible to first schedule an event to be brought to the AWT * event dispatching thread, then to have #dispose() invoked on * this instance and, finally, to receive the scheduled event in * the AWT event dispatching thread. In such a case, this * disposed instance should not respond to the event. */ if (!disposed) updateViewFromModelInEventDispatchThread(); } }; /** * Creates a <tt>CallPeerPanel</tt> for the given call peer. * * @param callRenderer the renderer of the call * @param callPeer the <tt>CallPeer</tt> represented in this panel * @param uiVideoHandler the facility which is to aid the new instance in the dealing with the * video-related information */ public OneToOneCallPeerPanel( SwingCallRenderer callRenderer, CallPeer callPeer, UIVideoHandler2 uiVideoHandler) { this.callRenderer = callRenderer; this.callPeer = callPeer; // we need to obtain call as soon as possible // cause if it fails too quickly we may fail to show it this.call = callPeer.getCall(); this.uiVideoHandler = uiVideoHandler; peerName = CallManager.getPeerDisplayName(callPeer); securityPanel = SecurityPanel.create(this, callPeer, null); photoLabel = new JLabel(getPhotoLabelIcon()); center = createCenter(); statusBar = createStatusBar(); setPeerImage(CallManager.getPeerImage(callPeer)); /* Lay out the main Components of the UI. */ setLayout(new GridBagLayout()); GridBagConstraints cnstrnts = new GridBagConstraints(); if (center != null) { cnstrnts.fill = GridBagConstraints.BOTH; cnstrnts.gridx = 0; cnstrnts.gridy = 1; cnstrnts.weightx = 1; cnstrnts.weighty = 1; add(center, cnstrnts); } if (statusBar != null) { cnstrnts.fill = GridBagConstraints.NONE; cnstrnts.gridx = 0; cnstrnts.gridy = 3; cnstrnts.weightx = 0; cnstrnts.weighty = 0; cnstrnts.insets = new Insets(5, 0, 0, 0); add(statusBar, cnstrnts); } createSoundLevelIndicators(); initSecuritySettings(); /* * Add the listeners which will be notified about changes in the model * and which will update this view. */ callPeerAdapter = new CallPeerAdapter(callPeer, this); uiVideoHandler.addObserver(uiVideoHandlerObserver); /* * This view adapts to whether it is displayed in full-screen or * windowed mode. */ if (callRenderer instanceof Component) { ((Component) callRenderer).addPropertyChangeListener(CallContainer.PROP_FULL_SCREEN, this); } OperationSetDesktopSharingClient desktopSharingClient = callPeer.getProtocolProvider().getOperationSet(OperationSetDesktopSharingClient.class); if (desktopSharingClient != null) { desktopSharingMouseAndKeyboardListener = new DesktopSharingMouseAndKeyboardListener(callPeer, desktopSharingClient); } else desktopSharingMouseAndKeyboardListener = null; updateViewFromModel(); } /** * Creates the <tt>Component</tt> hierarchy of the central area of this <tt>CallPeerPanel</tt> * which displays the photo of the <tt>CallPeer</tt> or the video if any. */ private VideoContainer createCenter() { photoLabel.setPreferredSize(new Dimension(90, 90)); return createVideoContainer(photoLabel); } /** Creates sound level related components. */ private void createSoundLevelIndicators() { TransparentPanel localLevelPanel = new TransparentPanel(new BorderLayout(5, 0)); TransparentPanel remoteLevelPanel = new TransparentPanel(new BorderLayout(5, 0)); localLevel = new InputVolumeControlButton( call, ImageLoader.MICROPHONE, ImageLoader.MUTE_BUTTON, false, false); remoteLevel = new OutputVolumeControlButton(call.getConference(), ImageLoader.HEADPHONE, false, false) .getComponent(); final SoundLevelIndicator localLevelIndicator = new SoundLevelIndicator(SoundLevelChangeEvent.MIN_LEVEL, SoundLevelChangeEvent.MAX_LEVEL); final SoundLevelIndicator remoteLevelIndicator = new SoundLevelIndicator(SoundLevelChangeEvent.MIN_LEVEL, SoundLevelChangeEvent.MAX_LEVEL); localLevelPanel.add(localLevel, BorderLayout.WEST); localLevelPanel.add(localLevelIndicator, BorderLayout.CENTER); remoteLevelPanel.add(remoteLevel, BorderLayout.WEST); remoteLevelPanel.add(remoteLevelIndicator, BorderLayout.CENTER); GridBagConstraints constraints = new GridBagConstraints(); constraints.fill = GridBagConstraints.NONE; constraints.gridx = 0; constraints.gridy = 5; constraints.weightx = 0; constraints.weighty = 0; constraints.insets = new Insets(10, 0, 0, 0); add(localLevelPanel, constraints); constraints.fill = GridBagConstraints.NONE; constraints.gridx = 0; constraints.gridy = 6; constraints.weightx = 0; constraints.weighty = 0; constraints.insets = new Insets(5, 0, 10, 0); add(remoteLevelPanel, constraints); if (!GuiActivator.getConfigurationService() .getBoolean( "net.java.sip.communicator.impl.gui.main.call." + "DISABLE_SOUND_LEVEL_INDICATORS", false)) { callPeer.addStreamSoundLevelListener( new SoundLevelListener() { public void soundLevelChanged(Object source, int level) { remoteLevelIndicator.updateSoundLevel(level); } }); /* * By the time the UI gets to be initialized, the callPeer may have * been removed from its Call. As far as the UI is concerned, the * callPeer will never have a Call again and there will be no audio * levels to display anyway so there is no point in throwing a * NullPointerException here. */ if (call != null) { call.addLocalUserSoundLevelListener( new SoundLevelListener() { public void soundLevelChanged(Object source, int level) { localLevelIndicator.updateSoundLevel(level); } }); } } } /** * Creates the <tt>Component</tt> hierarchy of the area of status-related information such as * <tt>CallPeer</tt> display name, call duration, security status. * * @return the root of the <tt>Component</tt> hierarchy of the area of status-related information * such as <tt>CallPeer</tt> display name, call duration, security status */ private Component createStatusBar() { // stateLabel callStatusLabel.setForeground(Color.WHITE); dtmfLabel.setForeground(Color.WHITE); callStatusLabel.setText(callPeer.getState().getLocalizedStateString()); PeerStatusPanel statusPanel = new PeerStatusPanel(new GridBagLayout()); GridBagConstraints constraints = new GridBagConstraints(); constraints.gridx = 0; constraints.gridy = 0; statusPanel.add(securityStatusLabel, constraints); initSecurityStatusLabel(); constraints.gridx++; statusPanel.add(holdStatusLabel, constraints); constraints.gridx++; statusPanel.add(muteStatusLabel, constraints); constraints.gridx++; callStatusLabel.setBorder(BorderFactory.createEmptyBorder(2, 3, 2, 12)); statusPanel.add(callStatusLabel, constraints); constraints.gridx++; constraints.weightx = 1f; statusPanel.add(dtmfLabel, constraints); return statusPanel; } /** * Creates a new AWT <tt>Container</tt> which can display a single <tt>Component</tt> at a time * (supposedly, one which represents video) and, in the absence of such a <tt>Component</tt>, * displays a predefined default <tt>Component</tt> (in accord with the previous supposition, one * which is the default when there is no video). The returned <tt>Container</tt> will track the * <tt>Components</tt>s added to and removed from it in order to make sure that * <tt>noVideoContainer</tt> is displayed as described. * * @param noVideoComponent the predefined default <tt>Component</tt> to be displayed in the * returned <tt>Container</tt> when there is no other <tt>Component</tt> in it * @return a new <tt>Container</tt> which can display a single <tt>Component</tt> at a time and, * in the absence of such a <tt>Component</tt>, displays <tt>noVideoComponent</tt> */ private VideoContainer createVideoContainer(Component noVideoComponent) { Container oldParent = noVideoComponent.getParent(); if (oldParent != null) oldParent.remove(noVideoComponent); return new VideoContainer(noVideoComponent, false); } /** * Releases the resources acquired by this instance which require explicit disposal (e.g. any * listeners added to the depicted <tt>CallPeer</tt>. Invoked by <tt>OneToOneCallPanel</tt> when * it determines that this <tt>OneToOneCallPeerPanel</tt> is no longer necessary. */ public void dispose() { disposed = true; callPeerAdapter.dispose(); uiVideoHandler.deleteObserver(uiVideoHandlerObserver); if (callRenderer instanceof Component) { ((Component) callRenderer).removePropertyChangeListener(CallContainer.PROP_FULL_SCREEN, this); } } /** * Returns the parent <tt>CallPanel</tt> containing this renderer. * * @return the parent <tt>CallPanel</tt> containing this renderer */ public CallPanel getCallPanel() { return callRenderer.getCallContainer(); } /** * Returns the parent call renderer. * * @return the parent call renderer */ public CallRenderer getCallRenderer() { return callRenderer; } /** * Returns the component associated with this renderer. * * @return the component associated with this renderer */ public Component getComponent() { return this; } /** * Returns the name of the peer, contained in this panel. * * @return the name of the peer, contained in this panel */ public String getPeerName() { return peerName; } /** * Gets the <tt>Icon</tt> to be displayed in {@link #photoLabel}. * * @return the <tt>Icon</tt> to be displayed in {@link #photoLabel} */ private ImageIcon getPhotoLabelIcon() { return (peerImage == null) ? new ImageIcon(ImageLoader.getImage(ImageLoader.DEFAULT_USER_PHOTO)) : peerImage; } /** Initializes the security settings for this call peer. */ private void initSecuritySettings() { CallPeerSecurityStatusEvent securityEvent = callPeer.getCurrentSecuritySettings(); if (securityEvent instanceof CallPeerSecurityOnEvent) securityOn((CallPeerSecurityOnEvent) securityEvent); } /** Initializes the security status label, shown in the call status bar. */ private void initSecurityStatusLabel() { securityStatusLabel.setBorder(BorderFactory.createEmptyBorder(2, 5, 2, 5)); securityStatusLabel.addMouseListener( new MouseAdapter() { /** Invoked when a mouse button has been pressed on a component. */ @Override public void mousePressed(MouseEvent e) { // Only show the security details if the security is on. SrtpControl ctrl = securityPanel.getSecurityControl(); if (ctrl instanceof ZrtpControl && ctrl.getSecureCommunicationStatus()) { setSecurityPanelVisible( !callRenderer .getCallContainer() .getCallWindow() .getFrame() .getGlassPane() .isVisible()); } } }); } /** * Determines whether the visual <tt>Component</tt> depicting the video streaming from the local * peer/user to the remote peer(s) is currently visible. * * @return <tt>true</tt> if the visual <tt>Component</tt> depicting the video streaming from the * local peer/user to the remote peer(s) is currently visible; otherwise, <tt>false</tt> */ public boolean isLocalVideoVisible() { return uiVideoHandler.isLocalVideoVisible(); } /** Reloads all icons. */ public void loadSkin() { if (localLevel != null) localLevel.setIcon(new ImageIcon(ImageLoader.getImage(ImageLoader.MICROPHONE))); if (remoteLevel != null && remoteLevel instanceof Skinnable) ((Skinnable) remoteLevel).loadSkin(); if (muteStatusLabel.getIcon() != null) muteStatusLabel.setIcon(new ImageIcon(ImageLoader.getImage(ImageLoader.MUTE_STATUS_ICON))); if (holdStatusLabel.getIcon() != null) holdStatusLabel.setIcon(new ImageIcon(ImageLoader.getImage(ImageLoader.HOLD_STATUS_ICON))); securityStatusLabel.setIcon(new ImageIcon(ImageLoader.getImage(securityImageID))); if (peerImage == null) { photoLabel.setIcon(new ImageIcon(ImageLoader.getImage(ImageLoader.DEFAULT_USER_PHOTO))); } } /** * Prints the given DTMG character through this <tt>CallPeerRenderer</tt>. * * @param dtmfChar the DTMF char to print */ public void printDTMFTone(char dtmfChar) { dtmfLabel.setText(dtmfLabel.getText() + dtmfChar); if (dtmfLabel.getBorder() == null) dtmfLabel.setBorder(BorderFactory.createEmptyBorder(2, 1, 2, 5)); } /** * Notifies this instance about a change in the value of a property of a source which of interest * to this instance. For example, <tt>OneToOneCallPeerPanel</tt> updates its user * interface-related properties upon changes in the value of the {@link * CallContainer#PROP_FULL_SCREEN} property of its associated {@link #callRenderer}. * * @param ev a <tt>PropertyChangeEvent</tt> which identifies the source, the name of the property * and the old and new values */ public void propertyChange(PropertyChangeEvent ev) { if (CallContainer.PROP_FULL_SCREEN.equals(ev.getPropertyName())) updateViewFromModel(); } /** * Re-dispatches glass pane mouse events only in case they occur on the security panel. * * @param glassPane the glass pane * @param e the mouse event in question */ private void redispatchMouseEvent(Component glassPane, MouseEvent e) { Point glassPanePoint = e.getPoint(); Point securityPanelPoint = SwingUtilities.convertPoint(glassPane, glassPanePoint, securityPanel); Component component; Point componentPoint; if (securityPanelPoint.y > 0) { component = securityPanel; componentPoint = securityPanelPoint; } else { Container contentPane = callRenderer.getCallContainer().getCallWindow().getFrame().getContentPane(); Point containerPoint = SwingUtilities.convertPoint(glassPane, glassPanePoint, contentPane); component = SwingUtilities.getDeepestComponentAt(contentPane, containerPoint.x, containerPoint.y); componentPoint = SwingUtilities.convertPoint(contentPane, glassPanePoint, component); } if (component != null) component.dispatchEvent( new MouseEvent( component, e.getID(), e.getWhen(), e.getModifiers(), componentPoint.x, componentPoint.y, e.getClickCount(), e.isPopupTrigger())); e.consume(); } /** * The handler for the security event received. The security event for starting establish a secure * connection. * * @param evt the security started event received */ public void securityNegotiationStarted(CallPeerSecurityNegotiationStartedEvent evt) { if (Boolean.parseBoolean( GuiActivator.getResources().getSettingsString("impl.gui.PARANOIA_UI"))) { SrtpControl srtpControl = null; if (callPeer instanceof MediaAwareCallPeer) srtpControl = evt.getSecurityController(); securityPanel = new ParanoiaTimerSecurityPanel<SrtpControl>(srtpControl); setSecurityPanelVisible(true); } } /** * Indicates that the security has gone off. * * @param evt the <tt>CallPeerSecurityOffEvent</tt> that notified us */ public void securityOff(final CallPeerSecurityOffEvent evt) { if (!SwingUtilities.isEventDispatchThread()) { SwingUtilities.invokeLater( new Runnable() { public void run() { securityOff(evt); } }); return; } if (evt.getSessionType() == CallPeerSecurityOffEvent.AUDIO_SESSION) { securityStatusLabel.setText(""); securityStatusLabel.setSecurityOff(); if (securityStatusLabel.getBorder() == null) securityStatusLabel.setBorder(BorderFactory.createEmptyBorder(2, 5, 2, 3)); } securityPanel.securityOff(evt); } /** * Indicates that the security is turned on. * * <p>Sets the secured status icon to the status panel and initializes/updates the corresponding * security details. * * @param evt Details about the event that caused this message. */ public void securityOn(final CallPeerSecurityOnEvent evt) { if (!SwingUtilities.isEventDispatchThread()) { SwingUtilities.invokeLater( new Runnable() { public void run() { securityOn(evt); } }); return; } // If the securityOn is called without a specific event, we'll just set // the security label status to on. if (evt == null) { securityStatusLabel.setSecurityOn(); return; } SrtpControl srtpControl = evt.getSecurityController(); if (!srtpControl.requiresSecureSignalingTransport() || callPeer.getProtocolProvider().isSignalingTransportSecure()) { if (srtpControl instanceof ZrtpControl) { securityStatusLabel.setText("zrtp"); if (!((ZrtpControl) srtpControl).isSecurityVerified()) securityStatusLabel.setSecurityPending(); else securityStatusLabel.setSecurityOn(); } else securityStatusLabel.setSecurityOn(); } // if we have some other panel, using other control if (!srtpControl.getClass().isInstance(securityPanel.getSecurityControl()) || (securityPanel instanceof ParanoiaTimerSecurityPanel)) { setSecurityPanelVisible(false); securityPanel = SecurityPanel.create(this, callPeer, srtpControl); if (srtpControl instanceof ZrtpControl) ((ZrtpSecurityPanel) securityPanel).setSecurityStatusLabel(securityStatusLabel); } securityPanel.securityOn(evt); boolean isSecurityLowPriority = Boolean.parseBoolean( GuiActivator.getResources() .getSettingsString("impl.gui.I_DONT_CARE_THAT_MUCH_ABOUT_SECURITY")); // Display ZRTP panel in case SAS was not verified or a AOR mismtach // was detected during creation of ZrtpSecurityPanel. // Don't show panel if user does not care about security at all. if (srtpControl instanceof ZrtpControl && !isSecurityLowPriority && (!((ZrtpControl) srtpControl).isSecurityVerified() || ((ZrtpSecurityPanel) securityPanel).isZidAorMismatch())) { setSecurityPanelVisible(true); } this.revalidate(); } /** Indicates that the security status is pending confirmation. */ public void securityPending() { securityStatusLabel.setSecurityPending(); } /** * Indicates that the security is timeouted, is not supported by the other end. * * @param evt Details about the event that caused this message. */ public void securityTimeout(final CallPeerSecurityTimeoutEvent evt) { if (!SwingUtilities.isEventDispatchThread()) { SwingUtilities.invokeLater( new Runnable() { public void run() { securityTimeout(evt); } }); return; } if (securityPanel != null) securityPanel.securityTimeout(evt); } /** * Sets the reason of a call failure if one occurs. The renderer should display this reason to the * user. * * @param reason the reason to display */ public void setErrorReason(final String reason) { if (!SwingUtilities.isEventDispatchThread()) { SwingUtilities.invokeLater( new Runnable() { public void run() { setErrorReason(reason); } }); return; } if (errorMessageComponent == null) { errorMessageComponent = new JTextPane(); JTextPane textPane = (JTextPane) errorMessageComponent; textPane.setEditable(false); textPane.setOpaque(false); StyledDocument doc = textPane.getStyledDocument(); MutableAttributeSet standard = new SimpleAttributeSet(); StyleConstants.setAlignment(standard, StyleConstants.ALIGN_CENTER); StyleConstants.setFontFamily(standard, textPane.getFont().getFamily()); StyleConstants.setFontSize(standard, 12); doc.setParagraphAttributes(0, 0, standard, true); GridBagConstraints constraints = new GridBagConstraints(); constraints.fill = GridBagConstraints.HORIZONTAL; constraints.gridx = 0; constraints.gridy = 4; constraints.weightx = 1; constraints.weighty = 0; constraints.insets = new Insets(5, 0, 0, 0); add(errorMessageComponent, constraints); this.revalidate(); } errorMessageComponent.setText(reason); if (isVisible()) errorMessageComponent.repaint(); } /** * Shows/hides the visual <tt>Component</tt> depicting the video streaming from the local * peer/user to the remote peer(s). * * @param visible <tt>true</tt> to show the visual <tt>Component</tt> depicting the video * streaming from the local peer/user to the remote peer(s); <tt>false</tt>, otherwise */ public void setLocalVideoVisible(boolean visible) { uiVideoHandler.setLocalVideoVisible(visible); } /** * Sets the mute status icon to the status panel. * * @param isMute indicates if the call with this peer is muted */ public void setMute(final boolean isMute) { if (!SwingUtilities.isEventDispatchThread()) { SwingUtilities.invokeLater( new Runnable() { public void run() { setMute(isMute); } }); return; } if (isMute) { muteStatusLabel.setIcon(new ImageIcon(ImageLoader.getImage(ImageLoader.MUTE_STATUS_ICON))); muteStatusLabel.setBorder(BorderFactory.createEmptyBorder(2, 3, 2, 3)); } else { muteStatusLabel.setIcon(null); muteStatusLabel.setBorder(BorderFactory.createEmptyBorder(0, 0, 0, 0)); } // Update input volume control button state to reflect the current // mute status. if (localLevel.isSelected() != isMute) localLevel.setSelected(isMute); this.revalidate(); this.repaint(); } /** * Sets the "on hold" property value. * * @param isOnHold indicates if the call with this peer is put on hold */ public void setOnHold(final boolean isOnHold) { if (!SwingUtilities.isEventDispatchThread()) { SwingUtilities.invokeLater( new Runnable() { public void run() { setOnHold(isOnHold); } }); return; } if (isOnHold) { holdStatusLabel.setIcon(new ImageIcon(ImageLoader.getImage(ImageLoader.HOLD_STATUS_ICON))); holdStatusLabel.setBorder(BorderFactory.createEmptyBorder(2, 3, 2, 3)); } else { holdStatusLabel.setIcon(null); holdStatusLabel.setBorder(BorderFactory.createEmptyBorder(0, 0, 0, 0)); } this.revalidate(); this.repaint(); } /** * Set the image of the peer * * @param image new image */ public void setPeerImage(byte[] image) { // If the image is still null we try to obtain it from one of the // available contact sources. if (image == null || image.length <= 0) { GuiActivator.getContactList().setSourceContactImage(peerName, photoLabel, 100, 100); } else { peerImage = ImageUtils.getScaledRoundedIcon(image, 100, 100); if (peerImage == null) peerImage = getPhotoLabelIcon(); if (!SwingUtilities.isEventDispatchThread()) { SwingUtilities.invokeLater( new Runnable() { public void run() { photoLabel.setIcon(peerImage); photoLabel.repaint(); } }); } else { photoLabel.setIcon(peerImage); photoLabel.repaint(); } } } /** * Sets the name of the peer. * * @param name the name of the peer */ public void setPeerName(final String name) { if (!SwingUtilities.isEventDispatchThread()) { SwingUtilities.invokeLater( new Runnable() { public void run() { setPeerName(name); } }); return; } peerName = name; ((OneToOneCallPanel) callRenderer).setPeerName(name); } /** * Sets the state of the contained call peer by specifying the state name. * * @param oldState the previous state of the peer * @param newState the new state of the peer * @param stateString the state of the contained call peer */ public void setPeerState( final CallPeerState oldState, final CallPeerState newState, final String stateString) { if (!SwingUtilities.isEventDispatchThread()) { SwingUtilities.invokeLater( new Runnable() { public void run() { setPeerState(oldState, newState, stateString); } }); return; } this.callStatusLabel.setText(stateString); if (newState == CallPeerState.CONNECTED && !CallPeerState.isOnHold(oldState) && !securityStatusLabel.isSecurityStatusSet()) { securityStatusLabel.setSecurityOff(); } } /** * Shows/hides the security panel. * * @param isVisible <tt>true</tt> to show the security panel, <tt>false</tt> to hide it */ public void setSecurityPanelVisible(final boolean isVisible) { if (!SwingUtilities.isEventDispatchThread()) { SwingUtilities.invokeLater( new Runnable() { public void run() { setSecurityPanelVisible(isVisible); } }); return; } final JFrame callFrame = callRenderer.getCallContainer().getCallWindow().getFrame(); final JPanel glassPane = (JPanel) callFrame.getGlassPane(); if (!isVisible) { // Need to hide the security panel explicitly in order to keep the // fade effect. securityPanel.setVisible(false); glassPane.setVisible(false); glassPane.removeAll(); } else { glassPane.setLayout(null); glassPane.addMouseListener( new MouseListener() { public void mouseClicked(MouseEvent e) { redispatchMouseEvent(glassPane, e); } public void mouseEntered(MouseEvent e) { redispatchMouseEvent(glassPane, e); } public void mouseExited(MouseEvent e) { redispatchMouseEvent(glassPane, e); } public void mousePressed(MouseEvent e) { redispatchMouseEvent(glassPane, e); } public void mouseReleased(MouseEvent e) { redispatchMouseEvent(glassPane, e); } }); Point securityLabelPoint = securityStatusLabel.getLocation(); Point newPoint = SwingUtilities.convertPoint( securityStatusLabel.getParent(), securityLabelPoint.x, securityLabelPoint.y, callFrame); securityPanel.setBeginPoint(new Point((int) newPoint.getX() + 15, 0)); securityPanel.setBounds(0, (int) newPoint.getY() - 5, this.getWidth(), 130); glassPane.add(securityPanel); // Need to show the security panel explicitly in order to keep the // fade effect. securityPanel.setVisible(true); glassPane.setVisible(true); glassPane.addComponentListener( new ComponentAdapter() { /** Invoked when the component's size changes. */ @Override public void componentResized(ComponentEvent e) { if (glassPane.isVisible()) { glassPane.setVisible(false); callFrame.removeComponentListener(this); } } }); } } /** * Updates this view i.e. <tt>OneToOneCallPeerPanel</tt> so that it depicts the current state of * its model i.e. <tt>callPeer</tt>. */ private void updateViewFromModel() { /* * We receive events/notifications from various threads and we respond * to them in the AWT event dispatching thread. It is possible to first * schedule an event to be brought to the AWT event dispatching thread, * then to have #dispose() invoked on this instance and, finally, to * receive the scheduled event in the AWT event dispatching thread. In * such a case, this disposed instance should not respond to the event * because it may, for example, steal a visual Components depicting * video (which cannot belong to more than one parent at a time) from * another non-disposed OneToOneCallPeerPanel. */ if (!disposed) { if (SwingUtilities.isEventDispatchThread()) updateViewFromModelInEventDispatchThread(); else { SwingUtilities.invokeLater(updateViewFromModelInEventDispatchThread); } } } /** * Updates this view i.e. <tt>OneToOneCallPeerPanel</tt> so that it depicts the current state of * its model i.e. <tt>callPeer</tt>. The update is performed in the AWT event dispatching thread. */ private void updateViewFromModelInEventDispatchThread() { /* * We receive events/notifications from various threads and we respond * to them in the AWT event dispatching thread. It is possible to first * schedule an event to be brought to the AWT event dispatching thread, * then to have #dispose() invoked on this instance and, finally, to * receive the scheduled event in the AWT event dispatching thread. In * such a case, this disposed instance should not respond to the event * because it may, for example, steal a visual Components depicting * video (which cannot belong to more than one parent at a time) from * another non-disposed OneToOneCallPeerPanel. */ if (disposed) return; /* * Update the display of visual <tt>Component</tt>s depicting video * streaming between the local peer/user and the remote peer(s). */ OperationSetVideoTelephony videoTelephony = callPeer.getProtocolProvider().getOperationSet(OperationSetVideoTelephony.class); Component remoteVideo = null; Component localVideo = null; if (videoTelephony != null) { List<Component> remoteVideos = videoTelephony.getVisualComponents(callPeer); if ((remoteVideos != null) && !remoteVideos.isEmpty()) { /* * TODO OneToOneCallPeerPanel displays a one-to-one conversation * between the local peer/user and a specific remote peer. If * the remote peer is the focus of a telephony conference of its * own, it may be sending multiple videos to the local peer. * Switching to a user interface which displays multiple videos * is the responsibility of whoever decided that this * OneToOneCallPeerPanel is to be used to depict the current * state of the CallConference associated with the CallPeer * depicted by this instance. If that switching decides that * this instance is to continue being the user interface, then * we should probably pick up the remote video which is * generated by the remote peer and not one of its * ConferenceMembers. */ remoteVideo = remoteVideos.get(0); } if (uiVideoHandler.isLocalVideoVisible()) { try { localVideo = videoTelephony.getLocalVisualComponent(callPeer); } catch (OperationFailedException ofe) { /* * Well, we cannot do much about the exception. We'll just * not display the local video. */ logger.warn("Failed to retrieve local video to be displayed.", ofe); } } /* * Determine whether there is actually a change in the local and * remote videos which requires an update. */ boolean localVideoChanged = ((localVideo != this.localVideo) || ((localVideo != null) && !UIVideoHandler2.isAncestor(center, localVideo))); boolean remoteVideoChanged = ((remoteVideo != this.remoteVideo) || ((remoteVideo != null) && !UIVideoHandler2.isAncestor(center, remoteVideo))); // If the remote video has changed, maybe the CallPanel can display // the LO/SD/HD button. if (remoteVideoChanged) { // Updates video component which may listen the mouse and key // events. if (desktopSharingMouseAndKeyboardListener != null) { desktopSharingMouseAndKeyboardListener.setVideoComponent(remoteVideo); } CallPanel callPanel = callRenderer.getCallContainer(); // The remote video has been added, then tries to display the // LO/SD/HD button. if (remoteVideo != null) { callPanel.addRemoteVideoSpecificComponents(callPeer); } // The remote video has been removed, then hide the LO/SD/HD // button if it is currently displayed. else { callPanel.removeRemoteVideoSpecificComponents(); } } if (localVideoChanged || remoteVideoChanged) { /* * VideoContainer and JAWTRenderer cannot handle random * additions of Components. Removing the localVideo when the * user has requests its hiding though, should work without * removing all Components from the VideoCotainer and adding * them again. */ if (localVideoChanged && !remoteVideoChanged && (localVideo == null)) { if (this.localVideo != null) { center.remove(this.localVideo); this.localVideo = null; if (closeLocalVisualComponentButton != null) center.remove(closeLocalVisualComponentButton); } } else { center.removeAll(); this.localVideo = null; this.remoteVideo = null; /* * AWT does not make a guarantee about the Z order even * within an operating system i.e. the order of adding the * Components to their Container does not mean that they * will be determinedly painted in that or reverse order. * Anyway, there appears to be an expectation among the * developers less acquainted with AWT that AWT paints the * Components of a Container in an order that is the reverse * of the order of their adding. In order to satisfy that * expectation and thus give at least some idea to the * developers reading the code bellow, do add the Components * according to that expectation. */ if (localVideo != null) { if (closeLocalVisualComponentButton == null) { closeLocalVisualComponentButton = new CloseLocalVisualComponentButton(uiVideoHandler); } center.add(closeLocalVisualComponentButton, VideoLayout.CLOSE_LOCAL_BUTTON, -1); center.add(localVideo, VideoLayout.LOCAL, -1); this.localVideo = localVideo; } if (remoteVideo != null) { center.add(remoteVideo, VideoLayout.CENTER_REMOTE, -1); this.remoteVideo = remoteVideo; } } } } } /** The <tt>TransparentPanel</tt> that will display the peer status. */ private static class PeerStatusPanel extends TransparentPanel { /** * Silence the serial warning. Though there isn't a plan to serialize the instances of the * class, there're no fields so the default serialization routine will work. */ private static final long serialVersionUID = 0L; /** * Constructs a new <tt>PeerStatusPanel</tt>. * * @param layout the <tt>LayoutManager</tt> to use */ public PeerStatusPanel(LayoutManager layout) { super(layout); } /** @{inheritDoc} */ @Override public void paintComponent(Graphics g) { super.paintComponent(g); g = g.create(); try { AntialiasingManager.activateAntialiasing(g); g.setColor(Color.DARK_GRAY); g.fillRoundRect(0, 0, this.getWidth(), this.getHeight(), 10, 10); } finally { g.dispose(); } } } }
/** * Updates this view i.e. <tt>OneToOneCallPeerPanel</tt> so that it depicts the current state of * its model i.e. <tt>callPeer</tt>. The update is performed in the AWT event dispatching thread. */ private void updateViewFromModelInEventDispatchThread() { /* * We receive events/notifications from various threads and we respond * to them in the AWT event dispatching thread. It is possible to first * schedule an event to be brought to the AWT event dispatching thread, * then to have #dispose() invoked on this instance and, finally, to * receive the scheduled event in the AWT event dispatching thread. In * such a case, this disposed instance should not respond to the event * because it may, for example, steal a visual Components depicting * video (which cannot belong to more than one parent at a time) from * another non-disposed OneToOneCallPeerPanel. */ if (disposed) return; /* * Update the display of visual <tt>Component</tt>s depicting video * streaming between the local peer/user and the remote peer(s). */ OperationSetVideoTelephony videoTelephony = callPeer.getProtocolProvider().getOperationSet(OperationSetVideoTelephony.class); Component remoteVideo = null; Component localVideo = null; if (videoTelephony != null) { List<Component> remoteVideos = videoTelephony.getVisualComponents(callPeer); if ((remoteVideos != null) && !remoteVideos.isEmpty()) { /* * TODO OneToOneCallPeerPanel displays a one-to-one conversation * between the local peer/user and a specific remote peer. If * the remote peer is the focus of a telephony conference of its * own, it may be sending multiple videos to the local peer. * Switching to a user interface which displays multiple videos * is the responsibility of whoever decided that this * OneToOneCallPeerPanel is to be used to depict the current * state of the CallConference associated with the CallPeer * depicted by this instance. If that switching decides that * this instance is to continue being the user interface, then * we should probably pick up the remote video which is * generated by the remote peer and not one of its * ConferenceMembers. */ remoteVideo = remoteVideos.get(0); } if (uiVideoHandler.isLocalVideoVisible()) { try { localVideo = videoTelephony.getLocalVisualComponent(callPeer); } catch (OperationFailedException ofe) { /* * Well, we cannot do much about the exception. We'll just * not display the local video. */ logger.warn("Failed to retrieve local video to be displayed.", ofe); } } /* * Determine whether there is actually a change in the local and * remote videos which requires an update. */ boolean localVideoChanged = ((localVideo != this.localVideo) || ((localVideo != null) && !UIVideoHandler2.isAncestor(center, localVideo))); boolean remoteVideoChanged = ((remoteVideo != this.remoteVideo) || ((remoteVideo != null) && !UIVideoHandler2.isAncestor(center, remoteVideo))); // If the remote video has changed, maybe the CallPanel can display // the LO/SD/HD button. if (remoteVideoChanged) { // Updates video component which may listen the mouse and key // events. if (desktopSharingMouseAndKeyboardListener != null) { desktopSharingMouseAndKeyboardListener.setVideoComponent(remoteVideo); } CallPanel callPanel = callRenderer.getCallContainer(); // The remote video has been added, then tries to display the // LO/SD/HD button. if (remoteVideo != null) { callPanel.addRemoteVideoSpecificComponents(callPeer); } // The remote video has been removed, then hide the LO/SD/HD // button if it is currently displayed. else { callPanel.removeRemoteVideoSpecificComponents(); } } if (localVideoChanged || remoteVideoChanged) { /* * VideoContainer and JAWTRenderer cannot handle random * additions of Components. Removing the localVideo when the * user has requests its hiding though, should work without * removing all Components from the VideoCotainer and adding * them again. */ if (localVideoChanged && !remoteVideoChanged && (localVideo == null)) { if (this.localVideo != null) { center.remove(this.localVideo); this.localVideo = null; if (closeLocalVisualComponentButton != null) center.remove(closeLocalVisualComponentButton); } } else { center.removeAll(); this.localVideo = null; this.remoteVideo = null; /* * AWT does not make a guarantee about the Z order even * within an operating system i.e. the order of adding the * Components to their Container does not mean that they * will be determinedly painted in that or reverse order. * Anyway, there appears to be an expectation among the * developers less acquainted with AWT that AWT paints the * Components of a Container in an order that is the reverse * of the order of their adding. In order to satisfy that * expectation and thus give at least some idea to the * developers reading the code bellow, do add the Components * according to that expectation. */ if (localVideo != null) { if (closeLocalVisualComponentButton == null) { closeLocalVisualComponentButton = new CloseLocalVisualComponentButton(uiVideoHandler); } center.add(closeLocalVisualComponentButton, VideoLayout.CLOSE_LOCAL_BUTTON, -1); center.add(localVideo, VideoLayout.LOCAL, -1); this.localVideo = localVideo; } if (remoteVideo != null) { center.add(remoteVideo, VideoLayout.CENTER_REMOTE, -1); this.remoteVideo = remoteVideo; } } } } }
/** * Implements <tt>OperationSetVideoBridge</tt> for Jabber. * * @author Yana Stamcheva * @author Lyubomir Marinov */ public class OperationSetVideoBridgeImpl implements OperationSetVideoBridge, PacketFilter, PacketListener, RegistrationStateChangeListener { /** * The <tt>Logger</tt> used by the <tt>OperationSetVideoBridgeImpl</tt> class and its instances * for logging output. */ private static final Logger logger = Logger.getLogger(OperationSetVideoBridgeImpl.class); /** * The <tt>ProtocolProviderService</tt> implementation which initialized this instance, owns it * and is often referred to as its parent. */ private final ProtocolProviderServiceJabberImpl protocolProvider; /** * Creates an instance of <tt>OperationSetVideoBridgeImpl</tt> by specifying the parent * <tt>ProtocolProviderService</tt> announcing this operation set. * * @param protocolProvider the parent Jabber protocol provider */ public OperationSetVideoBridgeImpl(ProtocolProviderServiceJabberImpl protocolProvider) { this.protocolProvider = protocolProvider; this.protocolProvider.addRegistrationStateChangeListener(this); } /** * Implements {@link PacketFilter}. Determines whether this instance is interested in a specific * {@link Packet}. <tt>OperationSetVideoBridgeImpl</tt> returns <tt>true</tt> if the specified * <tt>packet</tt> is a {@link ColibriConferenceIQ}; otherwise, <tt>false</tt>. * * @param packet the <tt>Packet</tt> to be determined whether this instance is interested in it * @return <tt>true</tt> if the specified <tt>packet</tt> is a <tt>ColibriConferenceIQ</tt>; * otherwise, <tt>false</tt> */ public boolean accept(Packet packet) { return (packet instanceof ColibriConferenceIQ); } /** * Creates a conference call with the specified callees as call peers via a video bridge provided * by the parent Jabber provider. * * @param callees the list of addresses that we should call * @return the newly created conference call containing all CallPeers * @throws OperationFailedException if establishing the conference call fails * @throws OperationNotSupportedException if the provider does not have any conferencing features. */ public Call createConfCall(String[] callees) throws OperationFailedException, OperationNotSupportedException { return protocolProvider .getOperationSet(OperationSetTelephonyConferencing.class) .createConfCall(callees, new MediaAwareCallConference(true)); } /** * Invites the callee represented by the specified uri to an already existing call using a video * bridge provided by the parent Jabber provider. The difference between this method and * createConfCall is that inviteCalleeToCall allows a user to add new peers to an already * established conference. * * @param uri the callee to invite to an existing conf call. * @param call the call that we should invite the callee to. * @return the CallPeer object corresponding to the callee represented by the specified uri. * @throws OperationFailedException if inviting the specified callee to the specified call fails * @throws OperationNotSupportedException if allowing additional callees to a pre-established call * is not supported. */ public CallPeer inviteCalleeToCall(String uri, Call call) throws OperationFailedException, OperationNotSupportedException { return protocolProvider .getOperationSet(OperationSetTelephonyConferencing.class) .inviteCalleeToCall(uri, call); } /** * Indicates if there's an active video bridge available at this moment. The Jabber provider may * announce support for video bridge, but it should not be used for calling until it becomes * actually active. * * @return <tt>true</tt> to indicate that there's currently an active available video bridge, * <tt>false</tt> - otherwise */ public boolean isActive() { String jitsiVideobridge = protocolProvider.getJitsiVideobridge(); return ((jitsiVideobridge != null) && (jitsiVideobridge.length() > 0)); } /** * Notifies this instance that a specific <tt>ColibriConferenceIQ</tt> has been received. * * @param conferenceIQ the <tt>ColibriConferenceIQ</tt> which has been received */ private void processColibriConferenceIQ(ColibriConferenceIQ conferenceIQ) { /* * The application is not a Jitsi Videobridge server, it is a client. * Consequently, the specified ColibriConferenceIQ is sent to it in * relation to the part of the application's functionality which makes * requests to a Jitsi Videobridge server i.e. CallJabberImpl. * * Additionally, the method processColibriConferenceIQ is presently tasked * with processing ColibriConferenceIQ requests only. They are SET IQs * sent by the Jitsi Videobridge server to notify the application about * updates in the states of (colibri) conferences organized by the * application. */ if (IQ.Type.SET.equals(conferenceIQ.getType()) && conferenceIQ.getID() != null) { OperationSetBasicTelephony<?> basicTelephony = protocolProvider.getOperationSet(OperationSetBasicTelephony.class); if (basicTelephony != null) { Iterator<? extends Call> i = basicTelephony.getActiveCalls(); while (i.hasNext()) { Call call = i.next(); if (call instanceof CallJabberImpl) { CallJabberImpl callJabberImpl = (CallJabberImpl) call; MediaAwareCallConference conference = callJabberImpl.getConference(); if ((conference != null) && conference.isJitsiVideobridge()) { /* * TODO We may want to disallow rogue CallJabberImpl * instances which may throw an exception to prevent * the conferenceIQ from reaching the CallJabberImpl * instance which it was meant for. */ if (callJabberImpl.processColibriConferenceIQ(conferenceIQ)) break; } } } } } } /** * Implements {@link PacketListener}. Notifies this instance that a specific {@link Packet} (which * this instance has already expressed interest into by returning <tt>true</tt> from {@link * #accept(Packet)}) has been received. * * @param packet the <tt>Packet</tt> which has been received and which this instance is given a * chance to process */ public void processPacket(Packet packet) { /* * As we do elsewhere, acknowledge the receipt of the Packet first and * then go about our business with it. */ IQ iq = (IQ) packet; if (iq.getType() == IQ.Type.SET) protocolProvider.getConnection().sendPacket(IQ.createResultIQ(iq)); /* * Now that the acknowledging is out of the way, do go about our * business with the Packet. */ ColibriConferenceIQ conferenceIQ = (ColibriConferenceIQ) iq; boolean interrupted = false; try { processColibriConferenceIQ(conferenceIQ); } catch (Throwable t) { logger.error( "An error occurred during the processing of a " + packet.getClass().getName() + " packet", t); if (t instanceof InterruptedException) { /* * We cleared the interrupted state of the current Thread by * catching the InterruptedException. However, we do not really * care whether the current Thread has been interrupted - we * caught the InterruptedException because we want to swallow * any Throwable. Consequently, we should better restore the * interrupted state. */ interrupted = true; } else if (t instanceof ThreadDeath) throw (ThreadDeath) t; } if (interrupted) Thread.currentThread().interrupt(); } /** * {@inheritDoc} * * <p>Implements {@link RegistrationStateChangeListener}. Notifies this instance that there has * been a change in the <tt>RegistrationState</tt> of {@link #protocolProvider}. Subscribes this * instance to {@link ColibriConferenceIQ}s as soon as <tt>protocolProvider</tt> is registered and * unsubscribes it as soon as <tt>protocolProvider</tt> is unregistered. */ public void registrationStateChanged(RegistrationStateChangeEvent ev) { RegistrationState registrationState = ev.getNewState(); if (RegistrationState.REGISTERED.equals(registrationState)) { protocolProvider.getConnection().addPacketListener(this, this); } else if (RegistrationState.UNREGISTERED.equals(registrationState)) { XMPPConnection connection = protocolProvider.getConnection(); if (connection != null) connection.removePacketListener(this); } } }