shahnevis-core/dist/utils/historyManager.js

**Shahnevis Core** is a lightweight and flexible library for building custom code editors. It provides essential features like syntax highlighting, a minimap, multi-cursor support, line numbering, and plugin management. This library is framework-agnostic,

function _typeof(o) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) { return typeof o; } : function (o) { return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o; }, _typeof(o); }
function _toConsumableArray(r) { return _arrayWithoutHoles(r) || _iterableToArray(r) || _unsupportedIterableToArray(r) || _nonIterableSpread(); }
function _nonIterableSpread() { throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }
function _unsupportedIterableToArray(r, a) { if (r) { if ("string" == typeof r) return _arrayLikeToArray(r, a); var t = {}.toString.call(r).slice(8, -1); return "Object" === t && r.constructor && (t = r.constructor.name), "Map" === t || "Set" === t ? Array.from(r) : "Arguments" === t || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(t) ? _arrayLikeToArray(r, a) : void 0; } }
function _iterableToArray(r) { if ("undefined" != typeof Symbol && null != r[Symbol.iterator] || null != r["@@iterator"]) return Array.from(r); }
function _arrayWithoutHoles(r) { if (Array.isArray(r)) return _arrayLikeToArray(r); }
function _arrayLikeToArray(r, a) { (null == a || a > r.length) && (a = r.length); for (var e = 0, n = Array(a); e < a; e++) n[e] = r[e]; return n; }
function ownKeys(e, r) { var t = Object.keys(e); if (Object.getOwnPropertySymbols) { var o = Object.getOwnPropertySymbols(e); r && (o = o.filter(function (r) { return Object.getOwnPropertyDescriptor(e, r).enumerable; })), t.push.apply(t, o); } return t; }
function _objectSpread(e) { for (var r = 1; r < arguments.length; r++) { var t = null != arguments[r] ? arguments[r] : {}; r % 2 ? ownKeys(Object(t), !0).forEach(function (r) { _defineProperty(e, r, t[r]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(t)) : ownKeys(Object(t)).forEach(function (r) { Object.defineProperty(e, r, Object.getOwnPropertyDescriptor(t, r)); }); } return e; }
function _defineProperty(e, r, t) { return (r = _toPropertyKey(r)) in e ? Object.defineProperty(e, r, { value: t, enumerable: !0, configurable: !0, writable: !0 }) : e[r] = t, e; }
function _toPropertyKey(t) { var i = _toPrimitive(t, "string"); return "symbol" == _typeof(i) ? i : i + ""; }
function _toPrimitive(t, r) { if ("object" != _typeof(t) || !t) return t; var e = t[Symbol.toPrimitive]; if (void 0 !== e) { var i = e.call(t, r || "default"); if ("object" != _typeof(i)) return i; throw new TypeError("@@toPrimitive must return a primitive value."); } return ("string" === r ? String : Number)(t); }
import { globalState } from "./global";
import { saveSnapshot, debounceSnapshot, handleUndoRedo as handleUndoRedoAction } from "./stackUtils";

/**
 * Factory to create an isolated history manager for each editor instance.
 * @param {number} maxSize - Maximum number of history entries to keep.
 */
export function createHistoryManager(onChange) {
  var initialState = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : _objectSpread({}, globalState);
  var maxSize = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 100;
  // console.log("---------------------");
  // console.log(initialState);

  var manager = {
    undoStack: _toConsumableArray(initialState.undoStack),
    redoStack: _toConsumableArray(initialState.redoStack),
    isUndoRedo: false,
    maxHistory: maxSize,
    debounceId: null
  };
  return {
    saveState: function saveState(editor, foldingManager) {
      saveSnapshot(manager, editor, foldingManager);
      onChange(function (prevState) {
        return _objectSpread(_objectSpread({}, prevState), {}, {
          undoStack: _toConsumableArray(manager.undoStack),
          redoStack: _toConsumableArray(manager.redoStack)
        });
      });
    },
    debounceSaveState: function debounceSaveState(editor, foldingManager) {
      debounceSnapshot(manager, editor, foldingManager, onChange);
    },
    /** Keydown handler for undo/redo */
    handleUndoRedo: function handleUndoRedo(e, editor, foldingManager) {
      return handleUndoRedoAction(e, manager, editor, foldingManager, onChange);
    },
    getStack: function getStack() {
      return manager;
    }
  };
}