--- /dev/null
+/*
+ * Jexer - Java Text User Interface
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (C) 2019 Kevin Lamonte
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * @author Kevin Lamonte [kevin.lamonte@gmail.com]
+ * @version 1
+ */
+package jexer.backend;
+
+import java.util.List;
+
+import jexer.event.TInputEvent;
+
+/**
+ * HeadlessBackend
+ */
+public class HeadlessBackend extends LogicalScreen implements Backend {
+
+ // ------------------------------------------------------------------------
+ // Variables --------------------------------------------------------------
+ // ------------------------------------------------------------------------
+
+ /**
+ * The session information.
+ */
+ private SessionInfo sessionInfo;
+
+ // ------------------------------------------------------------------------
+ // Constructors -----------------------------------------------------------
+ // ------------------------------------------------------------------------
+
+ /**
+ * Public constructor.
+ */
+ public HeadlessBackend() {
+ sessionInfo = new TSessionInfo(width, height);
+ }
+
+ // ------------------------------------------------------------------------
+ // Backend ----------------------------------------------------------------
+ // ------------------------------------------------------------------------
+
+ /**
+ * Getter for sessionInfo.
+ *
+ * @return the SessionInfo
+ */
+ public final SessionInfo getSessionInfo() {
+ return sessionInfo;
+ }
+
+ /**
+ * Get a Screen, which displays the text cells to the user.
+ *
+ * @return the Screen
+ */
+ public Screen getScreen() {
+ return this;
+ }
+
+ /**
+ * Subclasses must provide an implementation that syncs the logical
+ * screen to the physical device.
+ */
+ public void flushScreen() {
+ // NOP
+ }
+
+ /**
+ * Check if there are events in the queue.
+ *
+ * @return if true, getEvents() has something to return to the application
+ */
+ public boolean hasEvents() {
+ return false;
+ }
+
+ /**
+ * Subclasses must provide an implementation to get keyboard, mouse, and
+ * screen resize events.
+ *
+ * @param queue list to append new events to
+ */
+ public void getEvents(List<TInputEvent> queue) {
+ // NOP
+ }
+
+ /**
+ * Subclasses must provide an implementation that closes sockets,
+ * restores console, etc.
+ */
+ public void shutdown() {
+ // NOP
+ }
+
+ /**
+ * Set listener to a different Object.
+ *
+ * @param listener the new listening object that run() wakes up on new
+ * input
+ */
+ public void setListener(final Object listener) {
+ // NOP
+ }
+
+ /**
+ * Reload backend options from System properties.
+ */
+ public void reloadOptions() {
+ // NOP
+ }
+
+}
--- /dev/null
+/*
+ * Jexer - Java Text User Interface
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (C) 2019 Kevin Lamonte
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * @author Kevin Lamonte [kevin.lamonte@gmail.com]
+ * @version 1
+ */
+package jexer.demos;
+
+import java.net.ServerSocket;
+import java.net.Socket;
+import java.text.MessageFormat;
+import java.util.ResourceBundle;
+
+import jexer.TApplication;
+import jexer.backend.*;
+import jexer.demos.DemoApplication;
+import jexer.net.TelnetServerSocket;
+
+
+/**
+ * This class shows off the use of MultiBackend and MultiScreen.
+ */
+public class Demo8 {
+
+ /**
+ * Translated strings.
+ */
+ private static final ResourceBundle i18n = ResourceBundle.getBundle(Demo8.class.getName());
+
+ // ------------------------------------------------------------------------
+ // Demo8 ------------------------------------------------------------------
+ // ------------------------------------------------------------------------
+
+ /**
+ * Main entry point.
+ *
+ * @param args Command line arguments
+ */
+ public static void main(final String [] args) {
+ ServerSocket server = null;
+ try {
+
+ /*
+ * In this demo we will create a headless application that anyone
+ * can telnet to.
+ */
+
+ /*
+ * Check the arguments for the port to listen on.
+ */
+ if (args.length == 0) {
+ System.err.println(i18n.getString("usageString"));
+ return;
+ }
+ int port = Integer.parseInt(args[0]);
+
+ /*
+ * We create a headless screen and use it to establish a
+ * MultiBackend.
+ */
+ HeadlessBackend headlessBackend = new HeadlessBackend();
+ MultiBackend multiBackend = new MultiBackend(headlessBackend);
+
+ /*
+ * Now we create the shared application (a standard demo) and
+ * spin it up.
+ */
+ DemoApplication demoApp = new DemoApplication(multiBackend);
+ (new Thread(demoApp)).start();
+ multiBackend.setListener(demoApp);
+
+ /*
+ * Fire up the telnet server.
+ */
+ server = new TelnetServerSocket(port);
+ while (demoApp.isRunning()) {
+ Socket socket = server.accept();
+ System.out.println(MessageFormat.
+ format(i18n.getString("newConnection"), socket));
+
+ ECMA48Backend ecmaBackend = new ECMA48Backend(demoApp,
+ socket.getInputStream(),
+ socket.getOutputStream());
+
+ /*
+ * Add this screen to the MultiBackend, and at this point we
+ * have the telnet client able to use the shared demo
+ * application.
+ */
+ multiBackend.addBackend(ecmaBackend);
+
+ /*
+ * Emit the connection information from telnet.
+ */
+ Thread.sleep(500);
+ System.out.println(MessageFormat.
+ format(i18n.getString("terminal"),
+ ((jexer.net.TelnetInputStream) socket.getInputStream()).
+ getTerminalType()));
+ System.out.println(MessageFormat.
+ format(i18n.getString("username"),
+ ((jexer.net.TelnetInputStream) socket.getInputStream()).
+ getUsername()));
+ System.out.println(MessageFormat.
+ format(i18n.getString("language"),
+ ((jexer.net.TelnetInputStream) socket.getInputStream()).
+ getLanguage()));
+
+ } // while (demoApp.isRunning())
+
+ /*
+ * When the application exits, kill all of the connections too.
+ */
+ multiBackend.shutdown();
+ server.close();
+
+ System.out.println(i18n.getString("exitMain"));
+
+ } catch (Exception e) {
+ e.printStackTrace();
+ } finally {
+ if (server != null) {
+ try {
+ server.close();
+ } catch (Exception e) {
+ // SQUASH
+ }
+ }
+ }
+ }
+
+}
git://git.nikiroo.be / nikiroo-utils.git / commitdiff