react-undo-redo - npm Package Compare versions

Comparing version 2.1.0 to 2.2.0

demo/package.json

@@ -15,8 +15,8 @@ {
     "react-dom": "18.2.0",
-    "react-undo-redo": "2.0.1",
+    "react-undo-redo": "2.1.0",
     "tiny-invariant": "1.3.1"
   },
   "devDependencies": {
-    "@types/react": "18.0.37",
-    "@types/react-dom": "18.0.11",
+    "@types/react": "18.2.6",
+    "@types/react-dom": "18.2.4",
     "html-webpack-harddisk-plugin": "2.0.0",
@@ -26,6 +26,6 @@ "html-webpack-plugin": "5.5.1",
     "typescript": "5.0.4",
-    "webpack": "5.80.0",
-    "webpack-cli": "5.0.1",
-    "webpack-dev-server": "4.13.3"
+    "webpack": "5.83.1",
+    "webpack-cli": "5.1.1",
+    "webpack-dev-server": "4.15.0"
   }
 }

lib/createContext.d.ts

 import { ComponentType, ReactNode } from "react";
-import { PresentReducer } from "./createReducer";
+import { PresentReducer, UndoRedoOptions } from "./createReducer";
 type Dispatch<Actions> = (action: Actions) => void;
@@ -18,3 +18,3 @@ type UndoRedoProviderProps<Present> = {
 };
-export declare function createContext<Present, Actions extends {}>(reducer: PresentReducer<Present, Actions>): {
+export declare function createContext<Present, Actions extends {}>(reducer: PresentReducer<Present, Actions>, options?: UndoRedoOptions<Actions>): {
     UndoRedoProvider: ComponentType<UndoRedoProviderProps<Present>>;
@@ -21,0 +21,0 @@ usePresent: () => [Present, Dispatch<Actions>];

lib/createContext.js

@@ -29,3 +29,3 @@ "use strict";
 var createReducer_1 = require("./createReducer");
-function createContext(reducer) {
+function createContext(reducer, options) {
     var Context = (0, react_1.createContext)([
@@ -47,3 +47,3 @@ {
     ]);
-    var undoRedoReducer = (0, createReducer_1.createReducer)(reducer);
+    var undoRedoReducer = (0, createReducer_1.createReducer)(reducer, options);
     function UndoRedoProvider(_a) {
@@ -50,0 +50,0 @@ var children = _a.children, initialState = _a.initialState, _b = _a.past, past = _b === void 0 ? [] : _b, _c = _a.future, future = _c === void 0 ? [] : _c;

lib/createReducer.d.ts

@@ -7,2 +7,5 @@ export type UndoRedoState<Present> = {
 export type PresentReducer<Present, Actions> = (state: Present, action: Actions) => Present;
+export type UndoRedoOptions<Actions> = {
+    track?: (action: Actions) => boolean | undefined;
+};
 export type UndoRedoReducer<Present, Actions> = (state: UndoRedoState<Present>, action: Actions) => UndoRedoState<Present>;
@@ -20,5 +23,5 @@ declare const enum UndoRedoActionTypes {
 export type UndoRedoActions<Base> = Base | UndoAction | RedoAction;
-export declare function createReducer<Present, Actions extends {}>(presentReducer: PresentReducer<Present, Actions>): UndoRedoReducer<Present, UndoRedoActions<Actions>>;
+export declare function createReducer<Present, Actions extends {}>(presentReducer: PresentReducer<Present, Actions>, { track }?: UndoRedoOptions<Actions>): UndoRedoReducer<Present, UndoRedoActions<Actions>>;
 export declare function undo(): UndoAction;
 export declare function redo(): RedoAction;
 export {};

lib/createReducer.js

@@ -13,3 +13,5 @@ "use strict";
 exports.redo = exports.undo = exports.createReducer = void 0;
-function createReducer(presentReducer) {
+var trackAll = function () { return true; };
+function createReducer(presentReducer, _a) {
+    var _b = _a === void 0 ? {} : _a, _c = _b.track, track = _c === void 0 ? trackAll : _c;
     return function reducer(state, action) {
@@ -36,2 +38,10 @@ if ("type" in action) {
         }
+        var isTrackableAction = track(action);
+        if (!isTrackableAction) {
+            return {
+                past: function () { return state.past(); },
+                present: function () { return presentReducer(state.present(), action); },
+                future: function () { return state.future(); },
+            };
+        }
         var past = __spreadArray([state.present()], state.past(), true);
@@ -38,0 +48,0 @@ var present = presentReducer(state.present(), action);

lib/fixtures/countReducer.d.ts

@@ -1,2 +0,2 @@
-declare enum CountActionTypes {
+export declare enum CountActionTypes {
     INCREMENT = "@@count/increment",
@@ -11,3 +11,3 @@ DECREMENT = "@@count/decrement"
 };
-type CountActions = IncrementAction | DecrementAction;
+export type CountActions = IncrementAction | DecrementAction;
 export declare const countReducer: (state: number, action: CountActions) => number;
@@ -14,0 +14,0 @@ export declare const increment: () => IncrementAction;

lib/fixtures/countReducer.js

@@ -6,3 +6,3 @@ "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
-exports.decrement = exports.increment = exports.countReducer = void 0;
+exports.decrement = exports.increment = exports.countReducer = exports.CountActionTypes = void 0;
 var tiny_invariant_1 = __importDefault(require("tiny-invariant"));
@@ -13,3 +13,3 @@ var CountActionTypes;
     CountActionTypes["DECREMENT"] = "@@count/decrement";
-})(CountActionTypes || (CountActionTypes = {}));
+})(CountActionTypes = exports.CountActionTypes || (exports.CountActionTypes = {}));
 var countReducer = function (state, action) {
@@ -16,0 +16,0 @@ (0, tiny_invariant_1.default)(state != null, "Count reducer needs an initial state");

lib/fixtures/index.d.ts

@@ -1,1 +0,1 @@
-export { countReducer, increment } from "./countReducer";
+export { countReducer, CountActions, CountActionTypes, increment } from "./countReducer";

lib/fixtures/index.js

 "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
-exports.increment = exports.countReducer = void 0;
+exports.increment = exports.CountActionTypes = exports.countReducer = void 0;
 var countReducer_1 = require("./countReducer");
 Object.defineProperty(exports, "countReducer", { enumerable: true, get: function () { return countReducer_1.countReducer; } });
+Object.defineProperty(exports, "CountActionTypes", { enumerable: true, get: function () { return countReducer_1.CountActionTypes; } });
 Object.defineProperty(exports, "increment", { enumerable: true, get: function () { return countReducer_1.increment; } });

package.json

 {
   "name": "react-undo-redo",
-  "version": "2.1.0",
+  "version": "2.2.0",
   "description": "A library to add undo-redo to any reducer",
@@ -23,11 +23,11 @@ "main": "lib/index.js",
     "@testing-library/user-event": "^14.4.3",
-    "@types/react": "18.0.37",
-    "@types/react-dom": "18.0.11",
+    "@types/react": "18.2.6",
+    "@types/react-dom": "18.2.4",
     "husky": "8.0.3",
     "jest": "29.5.0",
     "jest-environment-jsdom": "29.5.0",
-    "prettier": "2.8.7",
+    "prettier": "2.8.8",
     "react": "18.2.0",
     "react-dom": "18.2.0",
-    "rimraf": "5.0.0",
+    "rimraf": "5.0.1",
     "ts-jest": "29.1.0",
@@ -34,0 +34,0 @@ "typescript": "5.0.4"

README.md

@@ -24,3 +24,3 @@ # react-undo-redo
 In order to create the provider and hooks to manage undo and redo you call `createUndoRedo` and pass the `reducer` you'd like to enhance.
-This methods returns a provider component and hooks to work with your state.
+This method returns a provider component and hooks to work with your state.
 The `reducer` you pass does not need any knowledge about this feature.
@@ -35,2 +35,14 @@
 
+`createUndoRedo` also accepts an options object as a second parameter. Currently available options:
+
+- `track` - function with signature `(action) => boolean`. It is invoked on every dispatch and defines whether the new state is avaiable for undo/redo. If function returns `false`, the state won't affect the change history. It is useful in situations, when the change is not reflected in the UI or the user cannot control over.
+
+```js
+import { createUndoRedo } from "react-undo-redo"
+
+const { UndoRedoProvider, usePast, usePresent, useFuture, useUndoRedo } =
+  createUndoRedo(reducer, {track: (action) => action.type !== 'GET_NEW_TODOS'})
+```
+
+
 ### `UndoRedoProvider`
@@ -37,0 +49,0 @@

src/createReducer.spec.ts

 import { createReducer, redo, undo } from "./createReducer"
-import { countReducer, increment } from "./fixtures"
+import {
+  CountActionTypes,
+  CountActions,
+  countReducer,
+  increment,
+} from "./fixtures"
 
@@ -40,2 +45,30 @@ describe("create reducer", () => {
   })
+
+  describe("with `track` callback", () => {
+    it("moves the current present into the past when `track` callback returns `true`", () => {
+      const reducer = createReducer(countReducer, { track: () => true })
+
+      const { past, present } = reducer(initialState, increment())
+
+      expect(past()).toEqual([0])
+      expect(present()).toEqual(1)
+    })
+
+    it("updates the current present without changing the past and the future, when `track` callback returns `false`", () => {
+      const trackOnlyIncrements = (action: CountActions) =>
+        action.type === CountActionTypes.DECREMENT
+      const reducer = createReducer(countReducer, {
+        track: trackOnlyIncrements,
+      })
+
+      const untrackedState = reducer(
+        { past: () => [0], present: () => 1, future: () => [2] },
+        increment()
+      )
+
+      expect(untrackedState.past()).toEqual([0])
+      expect(untrackedState.present()).toEqual(2)
+      expect(untrackedState.future()).toEqual([2])
+    })
+  })
 })

src/createReducer.ts

@@ -12,2 +12,6 @@ export type UndoRedoState<Present> = {
 
+export type UndoRedoOptions<Actions> = {
+  track?: (action: Actions) => boolean | undefined
+}
+
 export type UndoRedoReducer<Present, Actions> = (
@@ -33,4 +37,7 @@ state: UndoRedoState<Present>,
 
+const trackAll = () => true
+
 export function createReducer<Present, Actions extends {}>(
-  presentReducer: PresentReducer<Present, Actions>
+  presentReducer: PresentReducer<Present, Actions>,
+  { track = trackAll }: UndoRedoOptions<Actions> = {}
 ): UndoRedoReducer<Present, UndoRedoActions<Actions>> {
@@ -65,2 +72,11 @@ return function reducer(
 
+    const isTrackableAction = track(action)
+    if (!isTrackableAction) {
+      return {
+        past: () => state.past(),
+        present: () => presentReducer(state.present(), action),
+        future: () => state.future(),
+      }
+    }
+
     const past = [state.present(), ...state.past()]
@@ -67,0 +83,0 @@ const present = presentReducer(state.present(), action)

src/fixtures/countReducer.ts

 import invariant from "tiny-invariant"
 
-enum CountActionTypes {
+export enum CountActionTypes {
   INCREMENT = "@@count/increment",
@@ -16,3 +16,3 @@ DECREMENT = "@@count/decrement",
 
-type CountActions = IncrementAction | DecrementAction
+export type CountActions = IncrementAction | DecrementAction
 
@@ -19,0 +19,0 @@ export const countReducer = (state: number, action: CountActions): number => {

src/fixtures/index.ts

@@ -1,1 +0,1 @@
-export { countReducer, increment } from "./countReducer"
+export { countReducer, CountActions, CountActionTypes, increment } from "./countReducer"

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161920

increased by3.02%

Lines of code

893

increased by12.61%

Number of lines in readme file

119

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Number of medium supply chain risk alerts

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