vlow with unregister

Author: joente

lib/index.js

@@ -56,7 +56,7 @@ var _withVlow = _interopRequireDefault(require("./withVlow"));
  */
 
 var Vlow = {
-  version: '1.1.17'
+  version: '1.1.18'
 };
 Vlow.Store = _store["default"];
 Vlow.Component = _component["default"];

lib/store.js

@@ -57,6 +57,27 @@ var Store = /*#__PURE__*/function () {
         return _this2._vlowSetState(listener, newState, counter);
       });
     }
+  }, {
+    key: "unregisterStore",
+    value: function unregisterStore() {
+      var _this3 = this;
+      if (Object.keys(this._vlowListeners_).length === 0) {
+        var index = _stores.findIndex(function (m) {
+          return m.store === _this3;
+        });
+        if (index !== -1) {
+          _stores.splice(index, 1);
+        }
+      } else {
+        console.error('failed to unregister store, the store still has listeners');
+      }
+    }
+  }, {
+    key: "listenersEmpty",
+    value: function listenersEmpty() {
+      // This will be called when there are no more listeners bound to the store.
+      // It is possible to do something here, for example call this.unregisterStore(); to remove the store from memory.
+    }
   }, {
     key: "_vlowFilterState",
     value: function _vlowFilterState(state, keys) {
@@ -124,6 +145,9 @@ var Store = /*#__PURE__*/function () {
     key: "_vlowRemoveListener",
     value: function _vlowRemoveListener(id) {
       delete this._vlowListeners_[id];
+      if (Object.keys(this._vlowListeners_).length === 0) {
+        this.listenersEmpty();
+      }
     }
   }], [{
     key: "_vlowGetOrCreateStore",

lib/withVlow.js

@@ -15,10 +15,10 @@ var _react = _interopRequireDefault(require("react"));
 var _component = _interopRequireDefault(require("./component"));
 function _callSuper(t, o, e) { return o = (0, _getPrototypeOf2["default"])(o), (0, _possibleConstructorReturn2["default"])(t, _isNativeReflectConstruct() ? Reflect.construct(o, e || [], (0, _getPrototypeOf2["default"])(t).constructor) : o.apply(t, e)); }
 function _isNativeReflectConstruct() { try { var t = !Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); } catch (t) {} return (_isNativeReflectConstruct = function _isNativeReflectConstruct() { return !!t; })(); }
-var withVlow = function withVlow(stores, WrappedComponent) {
+var _withVlow = function withVlow(stores, WrappedComponent) {
   if (WrappedComponent === undefined) {
     return function (WrappedComponent) {
-      return withVlow(stores, WrappedComponent);
+      return _withVlow(stores, WrappedComponent);
     };
   }
   var WithVlow = /*#__PURE__*/function (_Component) {
@@ -40,4 +40,4 @@ var withVlow = function withVlow(stores, WrappedComponent) {
   WithVlow.displayName = "WithVlow()(".concat(WrappedComponent.displayName || WrappedComponent.name || 'Component', ")");
   return WithVlow;
 };
-var _default = exports["default"] = withVlow;
+var _default = exports["default"] = _withVlow;