Purpur/purpur-server/minecraft-patches/sources/net/minecraft/server/gui/MinecraftServerGui.java.patch

--- a/net/minecraft/server/gui/MinecraftServerGui.java
+++ b/net/minecraft/server/gui/MinecraftServerGui.java
@@ -40,6 +_,11 @@
     private Thread logAppenderThread;
     private final Collection<Runnable> finalizers = Lists.newArrayList();
     private final AtomicBoolean isClosing = new AtomicBoolean();
+    // Purpur start - GUI Improvements
+    private final CommandHistory history = new CommandHistory();
+    private String currentCommand = "";
+    private int historyIndex = 0;
+    // Purpur end - GUI Improvements
 
     public static MinecraftServerGui showFrameFor(final DedicatedServer server) {
         try {
@@ -47,7 +_,7 @@
         } catch (Exception var3) {
         }
 
-        final JFrame frame = new JFrame("Minecraft server");
+        final JFrame frame = new JFrame("Purpur Minecraft server"); // Purpur - Improve GUI
         final MinecraftServerGui gui = new MinecraftServerGui(server);
         frame.setDefaultCloseOperation(2);
         frame.add(gui);
@@ -55,7 +_,7 @@
         frame.setLocationRelativeTo(null);
         frame.setVisible(true);
         // Paper start - Improve ServerGUI
-        frame.setName("Minecraft server");
+        frame.setName("Purpur Minecraft server"); // Purpur - Improve GUI
         try {
             frame.setIconImage(javax.imageio.ImageIO.read(java.util.Objects.requireNonNull(MinecraftServerGui.class.getClassLoader().getResourceAsStream("logo.png"))));
         } catch (java.io.IOException ignore) {
@@ -65,7 +_,7 @@
             @Override
             public void windowClosing(final WindowEvent event) {
                 if (!gui.isClosing.getAndSet(true)) {
-                    frame.setTitle("Minecraft server - shutting down!");
+                    frame.setTitle("Purpur Minecraft server - shutting down!"); // Purpur - Improve GUI
                     server.halt(true);
                     gui.runFinalizers();
                 }
@@ -113,7 +_,7 @@
 
     private JComponent buildChatPanel() {
         JPanel panel = new JPanel(new BorderLayout());
-        JTextArea chatArea = new JTextArea();
+        org.purpurmc.purpur.gui.JColorTextPane chatArea = new org.purpurmc.purpur.gui.JColorTextPane(); // Purpur - GUI Improvements
         JScrollPane scrollPane = new JScrollPane(chatArea, 22, 30);
         chatArea.setEditable(false);
         chatArea.setFont(MONOSPACED);
@@ -122,10 +_,43 @@
             String text = chatField.getText().trim();
             if (!text.isEmpty()) {
                 this.server.handleConsoleInput(text, this.server.createCommandSourceStack());
+                // Purpur start - GUI Improvements
+                history.add(text);
+                historyIndex = -1;
+                // Purpur end - GUI Improvements
             }
 
             chatField.setText("");
         });
+        // Purpur start - GUI Improvements
+        chatField.getInputMap().put(javax.swing.KeyStroke.getKeyStroke("UP"), "up");
+        chatField.getInputMap().put(javax.swing.KeyStroke.getKeyStroke("DOWN"), "down");
+        chatField.getActionMap().put("up", new javax.swing.AbstractAction() {
+            @Override
+            public void actionPerformed(java.awt.event.ActionEvent actionEvent) {
+                if (historyIndex < 0) {
+                    currentCommand = chatField.getText();
+                }
+                if (historyIndex < history.size() - 1) {
+                    chatField.setText(history.get(++historyIndex));
+                }
+            }
+        });
+        chatField.getActionMap().put("down", new javax.swing.AbstractAction() {
+            @Override
+            public void actionPerformed(java.awt.event.ActionEvent actionEvent) {
+                if (historyIndex >= 0) {
+                    if (historyIndex == 0) {
+                        --historyIndex;
+                        chatField.setText(currentCommand);
+                    } else {
+                        --historyIndex;
+                        chatField.setText(history.get(historyIndex));
+                    }
+                }
+            }
+        });
+        // Purpur end - GUI Improvements
         chatArea.addFocusListener(new FocusAdapter() {
             {
                 Objects.requireNonNull(MinecraftServerGui.this);
@@ -164,7 +_,7 @@
     }
 
     private static final java.util.regex.Pattern ANSI = java.util.regex.Pattern.compile("\\e\\[[\\d;]*[^\\d;]"); // CraftBukkit // Paper
-    public void print(final JTextArea console, final JScrollPane scrollPane, final String line) {
+    public void print(final org.purpurmc.purpur.gui.JColorTextPane console, final JScrollPane scrollPane, final String line) {
         if (!SwingUtilities.isEventDispatchThread()) {
             SwingUtilities.invokeLater(() -> this.print(console, scrollPane, line));
         } else {
@@ -175,16 +_,29 @@
                 shouldScroll = scrollBar.getValue() + scrollBar.getSize().getHeight() + MONOSPACED.getSize() * 4 > scrollBar.getMaximum();
             }
 
-            try {
+            /*try { // Purpur - GUI Improvements
                 document.insertString(document.getLength(), MinecraftServerGui.ANSI.matcher(line).replaceAll(""), null); // CraftBukkit
             } catch (BadLocationException var8) {
-            }
+            }*/ // Purpur - GUI Improvements
+            console.append(line); // Purpur - GUI Improvements
 
             if (shouldScroll) {
                 scrollBar.setValue(Integer.MAX_VALUE);
             }
         }
     }
+
+    // Purpur start - GUI Improvements
+    public static class CommandHistory extends java.util.LinkedList<String> {
+        @Override
+        public boolean add(String command) {
+            if (size() > 1000) {
+                remove();
+            }
+            return super.offerFirst(command);
+        }
+    }
+    // Purpur end - GUI Improvements
 
     // Paper start - Add onboarding message for initial server start
     private JComponent buildOnboardingPanel() {