mirror of
https://github.com/vanitasvitae/Smack.git
synced 2024-09-27 10:09:32 +02:00
b7ea226c56
and gradle-errorprone-plugin to 0.6.
244 lines
7.9 KiB
Java
244 lines
7.9 KiB
Java
/**
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*
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* Copyright 2003-2006 Jive Software.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.jivesoftware.smackx.jingleold.mediaimpl.sshare;
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import java.awt.Rectangle;
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import java.awt.event.WindowAdapter;
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import java.awt.event.WindowEvent;
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import java.io.IOException;
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import java.net.DatagramSocket;
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import java.net.InetAddress;
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import java.net.ServerSocket;
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import java.net.UnknownHostException;
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import java.util.logging.Level;
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import java.util.logging.Logger;
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import javax.swing.JFrame;
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import javax.swing.JPanel;
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import org.jivesoftware.smackx.jingleold.JingleSession;
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import org.jivesoftware.smackx.jingleold.media.JingleMediaSession;
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import org.jivesoftware.smackx.jingleold.media.PayloadType;
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import org.jivesoftware.smackx.jingleold.mediaimpl.sshare.api.ImageDecoder;
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import org.jivesoftware.smackx.jingleold.mediaimpl.sshare.api.ImageEncoder;
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import org.jivesoftware.smackx.jingleold.mediaimpl.sshare.api.ImageReceiver;
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import org.jivesoftware.smackx.jingleold.mediaimpl.sshare.api.ImageTransmitter;
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import org.jivesoftware.smackx.jingleold.nat.TransportCandidate;
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/**
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* This Class implements a complete JingleMediaSession.
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* It should be used to transmit and receive captured images from the Display.
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* This Class should be automatically controlled by JingleSession.
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* For better NAT Traversal support this implementation don't support only receive or only transmit.
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* To receive you MUST transmit. So the only implemented and functionally methods are startTransmit() and stopTransmit()
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*
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* @author Thiago Camargo
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*/
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public class ScreenShareSession extends JingleMediaSession {
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private static final Logger LOGGER = Logger.getLogger(ScreenShareSession.class.getName());
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private ImageTransmitter transmitter = null;
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private ImageReceiver receiver = null;
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private int width = 600;
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private int height = 600;
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/**
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* Creates a org.jivesoftware.jingleaudio.jmf.AudioMediaSession with defined payload type, remote and local candidates.
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*
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* @param payloadType Payload of the jmf
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* @param remote the remote information. The candidate that the jmf will be sent to.
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* @param local the local information. The candidate that will receive the jmf
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* @param locator media locator
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*/
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public ScreenShareSession(final PayloadType payloadType, final TransportCandidate remote, final TransportCandidate local,
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final String locator, JingleSession jingleSession) {
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super(payloadType, remote, local, "Screen", jingleSession);
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initialize();
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}
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/**
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* Initialize the screen share channels.
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*/
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@Override
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public void initialize() {
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JingleSession session = getJingleSession();
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if (session != null && session.getInitiator().equals(session.getConnection().getUser())) {
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// If the initiator of the jingle session is us then we transmit a screen share.
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try {
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InetAddress remote = InetAddress.getByName(getRemote().getIp());
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transmitter = new ImageTransmitter(new DatagramSocket(getLocal().getPort()), remote, getRemote().getPort(),
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new Rectangle(0, 0, width, height));
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} catch (Exception e) {
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LOGGER.log(Level.WARNING, "exception", e);
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}
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} else {
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// Otherwise we receive a screen share.
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JFrame window = new JFrame();
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JPanel jp = new JPanel();
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window.add(jp);
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window.setLocation(0, 0);
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window.setSize(600, 600);
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window.addWindowListener(new WindowAdapter() {
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@Override
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public void windowClosed(WindowEvent e) {
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receiver.stop();
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}
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});
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try {
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receiver = new ImageReceiver(InetAddress.getByName("0.0.0.0"), getRemote().getPort(), getLocal().getPort(), width,
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height);
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LOGGER.fine("Receiving on:" + receiver.getLocalPort());
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} catch (UnknownHostException e) {
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LOGGER.log(Level.WARNING, "exception", e);
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}
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jp.add(receiver);
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receiver.setVisible(true);
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window.setAlwaysOnTop(true);
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window.setVisible(true);
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}
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}
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/**
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* Starts transmission and for NAT Traversal reasons start receiving also.
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*
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* @deprecated use {@link #startTransmit()} instead.
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*/
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@Deprecated
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public void startTrasmit() {
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startTransmit();
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}
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/**
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* Starts transmission and for NAT Traversal reasons start receiving also.
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*/
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@Override
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public void startTransmit() {
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new Thread(transmitter).start();
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}
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/**
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* Set transmit activity. If the active is true, the instance should transmit.
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* If it is set to false, the instance should pause transmit.
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*
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* @param active active state
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* @deprecated use {@link #setTransmit(boolean)} instead.
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*/
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@Deprecated
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public void setTrasmit(boolean active) {
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setTransmit(active);
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}
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/**
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* Set transmit activity. If the active is true, the instance should transmit.
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* If it is set to false, the instance should pause transmit.
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*
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* @param active active state
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*/
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@Override
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public void setTransmit(boolean active) {
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transmitter.setTransmit(true);
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}
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/**
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* For NAT Reasons this method does nothing. Use startTransmit() to start transmit and receive jmf
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*/
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@Override
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public void startReceive() {
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// Do nothing
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}
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/**
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* Stops transmission and for NAT Traversal reasons stop receiving also.
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*
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* @deprecated use {@link #stopTransmit()} instead.
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*/
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@Deprecated
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public void stopTrasmit() {
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stopTransmit();
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}
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/**
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* Stops transmission and for NAT Traversal reasons stop receiving also.
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*/
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@Override
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public void stopTransmit() {
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if (transmitter != null) {
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transmitter.stop();
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}
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}
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/**
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* For NAT Reasons this method does nothing. Use startTransmit() to start transmit and receive jmf
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*/
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@Override
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public void stopReceive() {
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if (receiver != null) {
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receiver.stop();
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}
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}
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/**
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* Obtain a free port we can use.
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*
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* @return A free port number.
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*/
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protected int getFreePort() {
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ServerSocket ss;
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int freePort = 0;
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for (int i = 0; i < 10; i++) {
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freePort = (int) (10000 + Math.round(Math.random() * 10000));
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freePort = freePort % 2 == 0 ? freePort : freePort + 1;
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try {
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ss = new ServerSocket(freePort);
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freePort = ss.getLocalPort();
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ss.close();
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return freePort;
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} catch (IOException e) {
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LOGGER.log(Level.WARNING, "exception", e);
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}
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}
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try {
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ss = new ServerSocket(0);
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freePort = ss.getLocalPort();
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ss.close();
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} catch (IOException e) {
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LOGGER.log(Level.WARNING, "exception", e);
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}
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return freePort;
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}
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public void setEncoder(ImageEncoder encoder) {
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if (encoder != null) {
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this.transmitter.setEncoder(encoder);
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}
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}
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public void setDecoder(ImageDecoder decoder) {
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if (decoder != null) {
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this.receiver.setDecoder(decoder);
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}
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}
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}
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