@mui/x-charts/internals/plugins/utils/ChartStore.js

The community edition of MUI X Charts components.

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.ChartStore = void 0;
class ChartStore {
  constructor(value) {
    this.value = void 0;
    this.listeners = void 0;
    this.subscribe = fn => {
      this.listeners.add(fn);
      return () => {
        this.listeners.delete(fn);
      };
    };
    this.getSnapshot = () => {
      return this.value;
    };
    this.update = updater => {
      const newState = updater(this.value);
      if (newState !== this.value) {
        this.value = newState;
        this.listeners.forEach(l => l(newState));
      }
    };
    this.value = value;
    this.listeners = new Set();
  }
}
exports.ChartStore = ChartStore;