@wordpress/data/build-module/registry.js

Data module for WordPress.

// packages/data/src/registry.js
import deprecated from "@wordpress/deprecated";
import createReduxStore from "./redux-store";
import coreDataStore from "./store";
import { createEmitter } from "./utils/emitter";
import { lock, unlock } from "./lock-unlock";
function getStoreName(storeNameOrDescriptor) {
  return typeof storeNameOrDescriptor === "string" ? storeNameOrDescriptor : storeNameOrDescriptor.name;
}
function createRegistry(storeConfigs = {}, parent = null) {
  const stores = {};
  const emitter = createEmitter();
  let listeningStores = null;
  function globalListener() {
    emitter.emit();
  }
  const subscribe = (listener, storeNameOrDescriptor) => {
    if (!storeNameOrDescriptor) {
      return emitter.subscribe(listener);
    }
    const storeName = getStoreName(storeNameOrDescriptor);
    const store = stores[storeName];
    if (store) {
      return store.subscribe(listener);
    }
    if (!parent) {
      return emitter.subscribe(listener);
    }
    return parent.subscribe(listener, storeNameOrDescriptor);
  };
  function select(storeNameOrDescriptor) {
    const storeName = getStoreName(storeNameOrDescriptor);
    listeningStores?.add(storeName);
    const store = stores[storeName];
    if (store) {
      return store.getSelectors();
    }
    return parent?.select(storeName);
  }
  function __unstableMarkListeningStores(callback, ref) {
    listeningStores = /* @__PURE__ */ new Set();
    try {
      return callback.call(this);
    } finally {
      ref.current = Array.from(listeningStores);
      listeningStores = null;
    }
  }
  function resolveSelect(storeNameOrDescriptor) {
    const storeName = getStoreName(storeNameOrDescriptor);
    listeningStores?.add(storeName);
    const store = stores[storeName];
    if (store) {
      return store.getResolveSelectors();
    }
    return parent && parent.resolveSelect(storeName);
  }
  function suspendSelect(storeNameOrDescriptor) {
    const storeName = getStoreName(storeNameOrDescriptor);
    listeningStores?.add(storeName);
    const store = stores[storeName];
    if (store) {
      return store.getSuspendSelectors();
    }
    return parent && parent.suspendSelect(storeName);
  }
  function dispatch(storeNameOrDescriptor) {
    const storeName = getStoreName(storeNameOrDescriptor);
    const store = stores[storeName];
    if (store) {
      return store.getActions();
    }
    return parent && parent.dispatch(storeName);
  }
  function withPlugins(attributes) {
    return Object.fromEntries(
      Object.entries(attributes).map(([key, attribute]) => {
        if (typeof attribute !== "function") {
          return [key, attribute];
        }
        return [
          key,
          function() {
            return registry[key].apply(null, arguments);
          }
        ];
      })
    );
  }
  function registerStoreInstance(name, createStore) {
    if (stores[name]) {
      console.error('Store "' + name + '" is already registered.');
      return stores[name];
    }
    const store = createStore();
    if (typeof store.getSelectors !== "function") {
      throw new TypeError("store.getSelectors must be a function");
    }
    if (typeof store.getActions !== "function") {
      throw new TypeError("store.getActions must be a function");
    }
    if (typeof store.subscribe !== "function") {
      throw new TypeError("store.subscribe must be a function");
    }
    store.emitter = createEmitter();
    const currentSubscribe = store.subscribe;
    store.subscribe = (listener) => {
      const unsubscribeFromEmitter = store.emitter.subscribe(listener);
      const unsubscribeFromStore = currentSubscribe(() => {
        if (store.emitter.isPaused) {
          store.emitter.emit();
          return;
        }
        listener();
      });
      return () => {
        unsubscribeFromStore?.();
        unsubscribeFromEmitter?.();
      };
    };
    stores[name] = store;
    store.subscribe(globalListener);
    if (parent) {
      try {
        unlock(store.store).registerPrivateActions(
          unlock(parent).privateActionsOf(name)
        );
        unlock(store.store).registerPrivateSelectors(
          unlock(parent).privateSelectorsOf(name)
        );
      } catch (e) {
      }
    }
    return store;
  }
  function register(store) {
    registerStoreInstance(
      store.name,
      () => store.instantiate(registry)
    );
  }
  function registerGenericStore(name, store) {
    deprecated("wp.data.registerGenericStore", {
      since: "5.9",
      alternative: "wp.data.register( storeDescriptor )"
    });
    registerStoreInstance(name, () => store);
  }
  function registerStore(storeName, options) {
    if (!options.reducer) {
      throw new TypeError("Must specify store reducer");
    }
    const store = registerStoreInstance(
      storeName,
      () => createReduxStore(storeName, options).instantiate(registry)
    );
    return store.store;
  }
  function batch(callback) {
    if (emitter.isPaused) {
      callback();
      return;
    }
    emitter.pause();
    Object.values(stores).forEach((store) => store.emitter.pause());
    try {
      callback();
    } finally {
      emitter.resume();
      Object.values(stores).forEach(
        (store) => store.emitter.resume()
      );
    }
  }
  let registry = {
    batch,
    stores,
    namespaces: stores,
    // TODO: Deprecate/remove this.
    subscribe,
    select,
    resolveSelect,
    suspendSelect,
    dispatch,
    use,
    register,
    registerGenericStore,
    registerStore,
    __unstableMarkListeningStores
  };
  function use(plugin, options) {
    if (!plugin) {
      return;
    }
    registry = {
      ...registry,
      ...plugin(registry, options)
    };
    return registry;
  }
  registry.register(coreDataStore);
  for (const [name, config] of Object.entries(storeConfigs)) {
    registry.register(createReduxStore(name, config));
  }
  if (parent) {
    parent.subscribe(globalListener);
  }
  const registryWithPlugins = withPlugins(registry);
  lock(registryWithPlugins, {
    privateActionsOf: (name) => {
      try {
        return unlock(stores[name].store).privateActions;
      } catch (e) {
        return {};
      }
    },
    privateSelectorsOf: (name) => {
      try {
        return unlock(stores[name].store).privateSelectors;
      } catch (e) {
        return {};
      }
    }
  });
  return registryWithPlugins;
}
export {
  createRegistry
};
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