bonsai-analyzer/bin/utils/UrlStateEncoder.js

Trim your dependency tree.

"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;

var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));

var _actions = require("./actions");

function toQueryString(obj) {
  return Object.keys(obj).map(key => `${key}=${encodeURIComponent(obj[key])}`).join('&');
}

class UrlStateEncoder {
  constructor(store) {
    (0, _defineProperty2.default)(this, "_store", void 0);
    (0, _defineProperty2.default)(this, "_subscription", null);
    (0, _defineProperty2.default)(this, "onStoreChanged", () => {
      const newState = this._store.getState();

      window.location.hash = this.encodeStateForHash(newState);
    });
    this._store = store;
    const targetState = this.readStateFromHash(window.location.hash);

    if (targetState.filename !== null && targetState.filename !== undefined) {
      (0, _actions.fetchDataFile)(store.dispatch)(targetState.filename);

      if (targetState.chunk !== null && targetState.chunk !== undefined) {
        (0, _actions.PickedChunk)(store.dispatch)(targetState.chunk);

        if (targetState.rm) {
          const remove = (0, _actions.RemovedModule)(store.dispatch);
          targetState.rm.split(',').forEach(remove);
        }
      }
    }

    this._subscription = store.subscribe(this.onStoreChanged);
  }

  readStateFromHash(hash) {
    return hash.replace(/^#/, '').split('&').reduce((map, pair) => {
      const [key, val] = pair.split('=');
      map[key] = decodeURIComponent(val);
      return map;
    }, {});
  }

  encodeStateForHash(state) {
    const vals = {};

    if (state.selectedFilename !== null && state.selectedFilename !== undefined) {
      vals.filename = state.selectedFilename;

      if (state.selectedChunkId !== null && state.selectedChunkId !== undefined) {
        vals.chunk = state.selectedChunkId;

        if (state.blacklistedModuleIds && state.blacklistedModuleIds.length) {
          vals.rm = state.blacklistedModuleIds.join(',');
        }
      }
    }

    return toQueryString(vals);
  }

  destroy() {
    if (this._subscription) {
      this._subscription();

      this._subscription = null;
    }
  }

}

exports.default = UrlStateEncoder;
(0, _defineProperty2.default)(UrlStateEncoder, "instance", null);
(0, _defineProperty2.default)(UrlStateEncoder, "factory", function (store) {
  if (!UrlStateEncoder.instance) {
    UrlStateEncoder.instance = new UrlStateEncoder(store);
  }

  return UrlStateEncoder.instance;
});