fix casing

src/main/java/com/github/hf02/scrollForWorldEdit/client/Key.java

@@ -0,0 +1,46 @@
+package com.github.hf02.scrollForWorldEdit.client;
+
+import net.fabricmc.fabric.api.client.keybinding.v1.KeyBindingHelper;
+import net.minecraft.client.option.KeyBinding;
+
+public class Key {
+
+	public final String code;
+	public final String name;
+	public final String command;
+	public final KeyBinding keybinding;
+	public final KeyManager keyManager;
+	private final ScrollForWorldEditClient scrollClient;
+	public final KeyHandler handler;
+
+	public Key(
+		KeyManager keyManager,
+		String code,
+		String command,
+		String name,
+		String keybindingName,
+		net.minecraft.client.util.InputUtil.Type type,
+		int defaultCode,
+		String category,
+		KeyHandler handler
+	) {
+		this.keyManager = keyManager;
+		this.code = code;
+		this.command = command;
+		this.name = name;
+		this.scrollClient = keyManager.scrollClient;
+		this.handler = handler;
+		this.keybinding =
+			KeyBindingHelper.registerKeyBinding(
+				new KeyBinding(keybindingName, type, defaultCode, category)
+			);
+	}
+
+	public void run(TakeScroll scroll) {
+		boolean isActive = keyManager.isKeyActive(this.code);
+		if (isActive) {
+			scrollClient.mouseHandler.capturingScroll = true;
+			this.handler.callback(this, scroll);
+		}
+	}
+}

src/main/java/com/github/hf02/scrollForWorldEdit/client/KeyHandler.java

@@ -0,0 +1,5 @@
+package com.github.hf02.scrollForWorldEdit.client;
+
+public interface KeyHandler {
+	void callback(Key key, TakeScroll scroll);
+}

src/main/java/com/github/hf02/scrollForWorldEdit/client/KeyManager.java

@@ -0,0 +1,257 @@
+package com.github.hf02.scrollForWorldEdit.client;
+
+import com.github.hf02.scrollForWorldEdit.ScrollForWorldEdit;
+import java.util.Optional;
+import net.fabricmc.fabric.api.client.event.lifecycle.v1.ClientTickEvents;
+import net.fabricmc.fabric.api.client.keybinding.v1.KeyBindingHelper;
+import net.minecraft.client.option.KeyBinding;
+import net.minecraft.client.util.InputUtil;
+import org.lwjgl.glfw.GLFW;
+
+public class KeyManager {
+
+	private Key[] keys;
+
+	public final int count;
+
+	public final KeyBinding modeKey = KeyBindingHelper.registerKeyBinding(
+		new KeyBinding(
+			"key.scroll-for-worldedit.mode",
+			InputUtil.Type.KEYSYM,
+			GLFW.GLFW_KEY_LEFT_CONTROL,
+			"key.scroll-for-worldedit.main"
+		)
+	);
+	private boolean modeKeyToggle = false;
+
+	public final KeyBinding useKey = KeyBindingHelper.registerKeyBinding(
+		new KeyBinding(
+			"key.scroll-for-worldedit.use",
+			InputUtil.Type.KEYSYM,
+			GLFW.GLFW_KEY_LEFT_ALT,
+			"key.scroll-for-worldedit.main"
+		)
+	);
+	private boolean useKeyToggle = false;
+
+	public final KeyBinding modifierKey = KeyBindingHelper.registerKeyBinding(
+		new KeyBinding(
+			"key.scroll-for-worldedit.modifier",
+			InputUtil.Type.KEYSYM,
+			GLFW.GLFW_KEY_Z,
+			"key.scroll-for-worldedit.main"
+		)
+	);
+
+	private Optional<Key> getKey(String code) {
+		for (Key key : keys) {
+			if (key.code == code) {
+				return Optional.of(key);
+			}
+		}
+		return Optional.empty();
+	}
+
+	public boolean isUseKeyActive() {
+		return ScrollForWorldEditClient.config.useKeyToggles
+			? useKeyToggle
+			: useKey.isPressed();
+	}
+
+	public boolean isModeKeyActive() {
+		boolean modeKeyAllowed = ScrollForWorldEditClient.config.mustHoldUseKeyForModeKey
+			? isUseKeyActive()
+			: true;
+		boolean modeKeyPressed = ScrollForWorldEditClient.config.modeKeyToggles
+			? modeKeyToggle
+			: modeKey.isPressed();
+		return modeKeyAllowed && modeKeyPressed;
+	}
+
+	private int activeKeyIndex = 0;
+	private Key activeKey;
+
+	public void setActiveKey(int index) {
+		activeKeyIndex = index % count;
+		if (activeKeyIndex < 0) {
+			activeKeyIndex = count + activeKeyIndex;
+		}
+		activeKey = keys[activeKeyIndex];
+	}
+
+	public Key getActiveKey() {
+		return activeKey;
+	}
+
+	public int getActiveKeyIndex() {
+		return activeKeyIndex;
+	}
+
+	public final ScrollForWorldEditClient scrollClient;
+
+	public KeyManager(ScrollForWorldEditClient scrollForWorldEditClient) {
+		this.scrollClient = scrollForWorldEditClient;
+
+		ClientTickEvents.END_CLIENT_TICK.register(client -> {
+			while (useKey.wasPressed()) {
+				useKeyToggle =
+					ScrollForWorldEditClient.config.useKeyToggles
+						? !useKeyToggle
+						: false;
+			}
+			while (modeKey.wasPressed()) {
+				modeKeyToggle =
+					ScrollForWorldEditClient.config.modeKeyToggles
+						? !modeKeyToggle
+						: false;
+			}
+		});
+
+		keys =
+			new Key[] {
+				new Key(
+					this,
+					"move",
+					"/move %s %s -s",
+					"scroll-for-worldedit.mode.move",
+					"key.scroll-for-worldedit.move",
+					InputUtil.Type.KEYSYM,
+					GLFW.GLFW_KEY_UNKNOWN,
+					"key.scroll-for-worldedit.main",
+					this::runNonNegativeMove
+				),
+				new Key(
+					this,
+					"expand",
+					"/expand %s %s",
+					"scroll-for-worldedit.mode.expand",
+					"key.scroll-for-worldedit.expand",
+					InputUtil.Type.KEYSYM,
+					GLFW.GLFW_KEY_UNKNOWN,
+					"key.scroll-for-worldedit.main",
+					this::runMove
+				),
+				new Key(
+					this,
+					"contract",
+					"/contract %s %s",
+					"scroll-for-worldedit.mode.contract",
+					"key.scroll-for-worldedit.contract",
+					InputUtil.Type.KEYSYM,
+					GLFW.GLFW_KEY_UNKNOWN,
+					"key.scroll-for-worldedit.main",
+					this::runMove
+				),
+				new Key(
+					this,
+					"shift",
+					"/shift %s %s",
+					"scroll-for-worldedit.mode.shift",
+					"key.scroll-for-worldedit.shift",
+					InputUtil.Type.KEYSYM,
+					GLFW.GLFW_KEY_UNKNOWN,
+					"key.scroll-for-worldedit.main",
+					this::runMove
+				),
+				new Key(
+					this,
+					"stack",
+					"/stack %s %s -s",
+					"scroll-for-worldedit.mode.stack",
+					"key.scroll-for-worldedit.stack",
+					InputUtil.Type.KEYSYM,
+					GLFW.GLFW_KEY_UNKNOWN,
+					"key.scroll-for-worldedit.main",
+					this::runNonNegativeMove
+				),
+			};
+		count = keys.length;
+		setActiveKey(0);
+	}
+
+	public boolean isKeyActive(String keyName) {
+		Optional<Key> key = getKey(keyName);
+		if (!key.isPresent()) {
+			ScrollForWorldEdit.LOGGER.warn(
+				String.format("isKeyActive(): Unknown key %s", keyName)
+			);
+			return false;
+		}
+		if (isUseKeyActive() && activeKey == key.get()) {
+			return true;
+		}
+		return key.get().keybinding.isPressed();
+	}
+
+	public void processKeys(TakeScroll scroll) {
+		for (Key key : keys) {
+			key.run(scroll);
+		}
+	}
+
+	private void sendCommand(String command) {
+		scrollClient.client.player.networkHandler.sendChatCommand(command);
+	}
+
+	// methods to handle Keys
+
+	private void runNonNegativeMove(Key key, TakeScroll scroll) {
+		if (scroll.scrollY > 0) {
+			sendCommand(
+				String.format(
+					key.command,
+					scroll.scrollY,
+					scrollClient.primaryTextDirection()
+				)
+			);
+		} else if (scroll.scrollY < 0) {
+			sendCommand(
+				String.format(
+					key.command,
+					-scroll.scrollY,
+					scrollClient.primaryTextDirection(true)
+				)
+			);
+		}
+
+		if (scroll.scrollX > 0) {
+			sendCommand(
+				String.format(
+					key.command,
+					scroll.scrollX,
+					scrollClient.secondaryTextDirection()
+				)
+			);
+		} else if (scroll.scrollX < 0) {
+			sendCommand(
+				String.format(
+					key.command,
+					-scroll.scrollX,
+					scrollClient.secondaryTextDirection(true)
+				)
+			);
+		}
+	}
+
+	private void runMove(Key key, TakeScroll scroll) {
+		if (scroll.scrollY != 0) {
+			sendCommand(
+				String.format(
+					key.command,
+					scroll.scrollY,
+					scrollClient.primaryTextDirection()
+				)
+			);
+		}
+
+		if (scroll.scrollX != 0) {
+			sendCommand(
+				String.format(
+					key.command,
+					scroll.scrollX,
+					scrollClient.secondaryTextDirection()
+				)
+			);
+		}
+	}
+}

src/main/java/com/github/hf02/scrollForWorldEdit/client/MouseScrollCallback.java

@@ -0,0 +1,32 @@
+package com.github.hf02.scrollForWorldEdit.client;
+
+import net.fabricmc.fabric.api.event.Event;
+import net.fabricmc.fabric.api.event.EventFactory;
+import net.minecraft.util.ActionResult;
+
+/**
+ * callback for the mouse scrolling.
+ * returning SUCCESS will cancel minecraft's handling of the mouse
+ * wheel.
+ */
+public interface MouseScrollCallback {
+	Event<MouseScrollCallback> EVENT = EventFactory.createArrayBacked(
+		MouseScrollCallback.class,
+		listeners ->
+			(horizontal, vertical) -> {
+				for (MouseScrollCallback listener : listeners) {
+					ActionResult result = listener.interact(
+						horizontal,
+						vertical
+					);
+
+					if (result != ActionResult.PASS) {
+						return result;
+					}
+				}
+				return ActionResult.PASS;
+			}
+	);
+
+	ActionResult interact(double horizontal, double vertical);
+}