src/be/nikiroo/fanfix/reader/tui/TuiReader.java

   1 package be.nikiroo.fanfix.reader.tui;
   2
   3 import java.io.IOException;
   4
   5 import jexer.TApplication;
   6 import jexer.TApplication.BackendType;
   7 import be.nikiroo.fanfix.Instance;
   8 import be.nikiroo.fanfix.reader.BasicReader;
   9 import be.nikiroo.fanfix.reader.Reader;
  10
  11 /**
  12  * This {@link Reader}is based upon the TUI widget library 'jexer'
  13  * (https://github.com/klamonte/jexer/) and offer, as its name suggest, a Text
  14  * User Interface.
  15  * <p>
  16  * It is expected to be on par with the GUI version.
  17  *
  18  * @author niki
  19  */
  20 class TuiReader extends BasicReader {
  21         /**
  22          * Will detect the backend to use.
  23          * <p>
  24          * Swing is the default backend on Windows and MacOS while evreything else
  25          * will use XTERM unless explicitly overridden by <tt>jexer.Swing</tt> =
  26          * <tt>true</tt> or <tt>false</tt>.
  27          *
  28          * @return the backend to use
  29          */
  30         private static BackendType guessBackendType() {
  31                 // TODO: allow a config option to force one or the other?
  32                 TApplication.BackendType backendType = TApplication.BackendType.XTERM;
  33                 if (System.getProperty("os.name").startsWith("Windows")) {
  34                         backendType = TApplication.BackendType.SWING;
  35                 }
  36
  37                 if (System.getProperty("os.name").startsWith("Mac")) {
  38                         backendType = TApplication.BackendType.SWING;
  39                 }
  40
  41                 if (System.getProperty("jexer.Swing") != null) {
  42                         if (System.getProperty("jexer.Swing", "false").equals("true")) {
  43                                 backendType = TApplication.BackendType.SWING;
  44                         } else {
  45                                 backendType = TApplication.BackendType.XTERM;
  46                         }
  47                 }
  48
  49                 return backendType;
  50         }
  51
  52         @Override
  53         public void read() throws IOException {
  54                 try {
  55                         TuiReaderApplication app = new TuiReaderApplication(this,
  56                                         guessBackendType());
  57                         new Thread(app).start();
  58                 } catch (Exception e) {
  59                         Instance.getTraceHandler().error(e);
  60                 }
  61         }
  62
  63         @Override
  64         public void browse(String source) {
  65                 try {
  66                         TuiReaderApplication app = new TuiReaderApplication(this, source,
  67                                         guessBackendType());
  68                         new Thread(app).start();
  69                 } catch (Exception e) {
  70                         Instance.getTraceHandler().error(e);
  71                 }
  72         }
  73 }