Adds a keybind into the module that allows GMs to temporarily hide their cursor from everyone else (including other GMs)

module/settings/toggleMouseBroadcast.mjs

@@ -0,0 +1,130 @@
+import { SettingStatusEnum, status } from "../utils/SettingStatus.mjs";
+import { __ID__ } from "../consts.mjs";
+import { Logger } from "../utils/Logger.mjs";
+
+const key = `toggleMouseBroadcast`;
+
+/** @type {number | null} */
+let notifID = null;
+
+export function toggleMouseBroadcast() {
+	status[key] = SettingStatusEnum.Unknown;
+
+	// #region Registration
+	const prevented = Hooks.call(`${__ID__}.preventSetting`, key);
+	if (!prevented) {
+		Logger.log(`Preventing setting "${key}" from being registered`);
+		status[key] = SettingStatusEnum.Blocked;
+		return;
+	};
+	Logger.log(`Registering setting: ${key}`);
+
+	// MARK: setting
+	game.settings.register(__ID__, key, {
+		scope: `client`,
+		config: false,
+		default: true,
+	});
+
+	// MARK: keybind
+	game.keybindings.register(__ID__, key, {
+		name: `OFT.keybindings.${key}.name`,
+		hint: `OFT.keybindings.${key}.hint`,
+		precedence: CONST.KEYBINDING_PRECEDENCE.NORMAL,
+		restricted: true,
+		editable: [
+			{ key: `KeyH` },
+		],
+		onDown: (event) => {
+			if (!game.user.hasPermission(`SHOW_CURSOR`)) { return };
+			event.preventDefault?.();
+			const current = game.settings.get(__ID__, key);
+
+			if (current) {
+				notifID = ui.notifications.warn(
+					`OFT.notifs.${key}.hidingCursor`,
+					{ console: false, localize: true, permanent: true },
+				).id;
+			} else {
+				if (notifID != null) {
+					ui.notifications.remove(notifID);
+				};
+				ui.notifications.success(
+					`OFT.notifs.${key}.showingCursor`,
+					{ console: false, localize: true },
+				);
+			};
+
+			game.settings.set(__ID__, key, !current);
+
+			// Hide the existing cursor
+			game.user.broadcastActivity({ cursor: null });
+			return true;
+		},
+	});
+	// #endregion Registration
+
+	// #region Implementation
+	Hooks.on(`renderControlsConfig`, renderControlsConfigHandler);
+	Hooks.once(`ready`, readyHandler);
+
+	class OFTControlsLayer extends CONFIG.Canvas.layers.controls.layerClass {
+		_onMouseMove(currentPos) {
+			if (!game.settings.get(__ID__, key)) {
+				game.user.broadcastActivity({});
+			};
+			super._onMouseMove(currentPos);
+		};
+	};
+	CONFIG.Canvas.layers.controls.layerClass = OFTControlsLayer;
+
+	// #endregion Implementation
+
+	status[key] = SettingStatusEnum.Registered;
+};
+
+// #region Helpers
+const tabGroup = `categories`;
+
+/**
+ * Handle showing the "hiding your cursor" notification when the user
+ * connects to the server initially, allowing the current state to be
+ * correctly described to the user.
+ */
+function readyHandler() {
+	const hideCursor = !game.settings.get(__ID__, key);
+	const canShowCursor = game.user.hasPermission(`SHOW_CURSOR`);
+	if (hideCursor && canShowCursor) {
+		notifID = ui.notifications.warn(
+			`OFT.notifs.${key}.hidingCursor`,
+			{ console: false, localize: true, permanent: true },
+		).id;
+	};
+};
+
+/**
+ * Handles hiding the keybinding from the configuration if and when the user
+ * does not have the SHOW_CURSOR permission since this keybinding is really
+ * useless if they can't even broadcast their cursor in the first place.
+ */
+function renderControlsConfigHandler(_app, element) {
+
+	if (game.user.hasPermission(`SHOW_CURSOR`)) { return };
+
+	const keybindingList = element.querySelector(`section[data-group="${tabGroup}"][data-tab="${__ID__}"]`);
+	const tabButton = element.querySelector(`button[data-group="${tabGroup}"][data-tab="${__ID__}"]`);
+
+	if (keybindingList.childElementCount === 0) {
+		tabButton?.remove();
+		return;
+	};
+
+	const keybind = keybindingList.querySelector(`.form-group[data-action-id="${__ID__}.${key}"]`);
+	keybind?.remove();
+
+	if (keybindingList.childElementCount === 0) {
+		keybindingList.remove();
+		tabButton.remove();
+	};
+};
+// #endregion Helpers