Developers

Using ServerKeyboardBridge is very easy !

Download the plugin and put it to your libs folder.

build.gradle:

dependencies {
    compileOnly fileTree(include: ['*.jar'], dir: 'libs')
}

plugin.yml

softdepend: ['ServerKeyboardBridge']

Register a new Key input

    // In your main class

    @Override
    public void onEnable() {
        if (Bukkit.getPluginManager().isPluginEnabled("ServerKeyboardBridge")) {
            // keyCode can be found here : https://www.glfw.org/docs/latest/group__keys.html and https://www.glfw.org/docs/latest/group__buttons.html
            // Do not use null value, use empty string instead.
            // name and category can't be blank
            ServerKeyboardBridge.getInstance().registerKey(new KeyEntry(new NamespacedKey(plugin, id), name, description, category, defaultKeyCode));
        }
    }

Listen client events

    @EventHandler
    public void skbJoinEvent(SkbJoinEventevent) {
        Player player = event.getPlayer();
        String version = event.getVersion();
    }

    // KeyPressedEvent, KeyReleasedEvent or KeyEvent for both
    @EventHandler
    public void keyPressed(KeyPressedEvent event) {
        Player player = event.getPlayer();
        NamespacedKey namespacedKey = event.getKey();
        boolean isPressed = event.isPressed();
        boolean isInGui = event.isInGUI();
    }

Q&A

Q. Can I use translatable text ? A. Yes! Available for name, description and category

How does the plugin works

[CLIENT] connect to the server
         sent packet HANDSHAKE containing his client mod version
[SERVER] if config option "IfNoModDetected.kickPlayer" is true:
            kick player
         else if received HANDSHAKE packet:
            call BridgeJoinEvent
            if client mod version is not supported by the plugin:
                sent a message to client about not supported mod version
            else:
                sent all custom keys datas in a single packet
[CLIENT] if receive the custom keys data from packet:
            register each custom keys
            load configured keys from cache file
            make the key binding button in game menu visible
            when client press custom key:
                sent a packet containing custom key id, is key pressed ? and is in gui ?
[SERVER] everytime received custom key packet:
            call KeyPressedEvent or KeyReleaseEvent

[...]

[CLIENT] disconnect from server
         unregister custom keys
         hide the key binding button in game menu