@stackflow/react - npm Package Compare versions

Comparing version 0.21.2 to 0.21.3

dist/shims/useTransition.d.ts

+import React from "react";
+export declare const useTransition: typeof React.useTransition;

dist/useStep.d.ts

+import type { ActivityStep } from "@stackflow/core";
+/**
+ * Get current step
+ */
+export declare function useStep(): ActivityStep | null;

src/shims/useTransition.ts

+import React from "react";
+
+export const useTransition: typeof React.useTransition =
+  React.useTransition ?? (() => [false, (cb: () => void) => cb()]);

src/useStep.ts

+import type { ActivityStep } from "@stackflow/core";
+import { useContext } from "react";
+
+import { ActivityContext } from "./activity/ActivityProvider";
+
+/**
+ * Get current step
+ */
+export function useStep(): ActivityStep | null {
+  const { steps, id } = useContext(ActivityContext);
+
+  return steps.filter((step) => step.id !== id).at(-1) ?? null;
+}

dist/index.d.ts

@@ -10,2 +10,3 @@ export * from "./activity/ActivityComponentType";
 export * from "./useEnterDoneEffect";
+export * from "./useStep";
 export * from "./useStepActions";

dist/index.js

@@ -51,3 +51,5 @@ "use strict";
   useActivityParams: () => useActivityParams,
+  useEnterDoneEffect: () => useEnterDoneEffect,
   useStack: () => useStack,
+  useStep: () => useStep,
   useStepActions: () => useStepActions
@@ -130,3 +132,3 @@ });
 var import_core7 = require("@stackflow/core");
-var import_react18 = __toESM(require("react"));
+var import_react19 = __toESM(require("react"));
 
@@ -146,3 +148,3 @@ // src/activity/makeActivityId.ts
 // src/core/CoreProvider.tsx
-var import_react9 = __toESM(require("react"));
+var import_react10 = __toESM(require("react"));
 
@@ -168,7 +170,12 @@ // src/shims/useDeferredValue.ts
 
+// src/shims/useTransition.ts
+var import_react9 = __toESM(require("react"));
+var _a3;
+var useTransition = (_a3 = import_react9.default.useTransition) != null ? _a3 : () => [false, (cb) => cb()];
+
 // src/core/CoreProvider.tsx
-var CoreActionsContext = (0, import_react9.createContext)(
+var CoreActionsContext = (0, import_react10.createContext)(
   null
 );
-var CoreStateContext = (0, import_react9.createContext)(null);
+var CoreStateContext = (0, import_react10.createContext)(null);
 var CoreProvider = ({
@@ -184,5 +191,5 @@ coreStore,
   const deferredStack = useDeferredValue(stack);
-  return /* @__PURE__ */ import_react9.default.createElement(CoreStateContext.Provider, {
+  return /* @__PURE__ */ import_react10.default.createElement(CoreStateContext.Provider, {
     value: deferredStack
-  }, /* @__PURE__ */ import_react9.default.createElement(CoreActionsContext.Provider, {
+  }, /* @__PURE__ */ import_react10.default.createElement(CoreActionsContext.Provider, {
     value: coreStore.actions
@@ -194,22 +201,22 @@ }, children));
 // src/core/useCoreActions.ts
-var import_react10 = __toESM(require("react"));
-var useCoreActions = () => import_react10.default.useContext(CoreActionsContext);
+var import_react11 = __toESM(require("react"));
+var useCoreActions = () => import_react11.default.useContext(CoreActionsContext);
 
 // src/core/useCoreState.ts
-var import_react11 = __toESM(require("react"));
-var useCoreState = () => import_react11.default.useContext(CoreStateContext);
+var import_react12 = __toESM(require("react"));
+var useCoreState = () => import_react12.default.useContext(CoreStateContext);
 
 // src/MainRenderer.tsx
-var import_react15 = __toESM(require("react"));
+var import_react16 = __toESM(require("react"));
 
 // src/PluginRenderer.tsx
-var import_react14 = __toESM(require("react"));
+var import_react15 = __toESM(require("react"));
 
 // src/plugins/PluginsProvider.tsx
-var import_react12 = __toESM(require("react"));
-var PluginsContext = (0, import_react12.createContext)(null);
+var import_react13 = __toESM(require("react"));
+var PluginsContext = (0, import_react13.createContext)(null);
 var PluginsProvider = ({
   children,
   value
-}) => /* @__PURE__ */ import_react12.default.createElement(PluginsContext.Provider, {
+}) => /* @__PURE__ */ import_react13.default.createElement(PluginsContext.Provider, {
   value
@@ -220,5 +227,5 @@ }, children);
 // src/plugins/usePlugins.ts
-var import_react13 = require("react");
+var import_react14 = require("react");
 function usePlugins() {
-  return (0, import_react13.useContext)(PluginsContext);
+  return (0, import_react14.useContext)(PluginsContext);
 }
@@ -242,8 +249,8 @@
               const Activity = activityComponentMap[activity.name];
-              let output = /* @__PURE__ */ import_react14.default.createElement(Activity, {
+              let output = /* @__PURE__ */ import_react15.default.createElement(Activity, {
                 params: activity.params
               });
               plugins.forEach((p) => {
-                var _a5, _b;
-                output = (_b = (_a5 = p.wrapActivity) == null ? void 0 : _a5.call(p, {
+                var _a4, _b;
+                output = (_b = (_a4 = p.wrapActivity) == null ? void 0 : _a4.call(p, {
                   activity: __spreadProps(__spreadValues({}, activity), {
@@ -254,5 +261,5 @@ render: () => output
               });
-              return /* @__PURE__ */ import_react14.default.createElement(StackProvider, {
+              return /* @__PURE__ */ import_react15.default.createElement(StackProvider, {
                 value: stack
-              }, /* @__PURE__ */ import_react14.default.createElement(ActivityProvider, {
+              }, /* @__PURE__ */ import_react15.default.createElement(ActivityProvider, {
                 key: activity.id,
@@ -280,3 +287,3 @@ value: __spreadValues(__spreadValues({}, activity), overrideActivity)
   );
-  (0, import_react15.useEffect)(() => {
+  (0, import_react16.useEffect)(() => {
     if (renderingPlugins.length === 0) {
@@ -288,3 +295,3 @@ console.warn(
   }, [renderingPlugins]);
-  let output = /* @__PURE__ */ import_react15.default.createElement(import_react15.default.Fragment, null, renderingPlugins.map((plugin) => /* @__PURE__ */ import_react15.default.createElement(PluginRenderer_default, {
+  let output = /* @__PURE__ */ import_react16.default.createElement(import_react16.default.Fragment, null, renderingPlugins.map((plugin) => /* @__PURE__ */ import_react16.default.createElement(PluginRenderer_default, {
     key: plugin.key,
@@ -295,4 +302,4 @@ activityComponentMap,
   plugins.forEach((plugin) => {
-    var _a5, _b;
-    output = (_b = (_a5 = plugin.wrapStack) == null ? void 0 : _a5.call(plugin, {
+    var _a4, _b;
+    output = (_b = (_a4 = plugin.wrapStack) == null ? void 0 : _a4.call(plugin, {
       stack: __spreadProps(__spreadValues({}, coreState), {
@@ -311,3 +318,3 @@ render() {
 // src/useActions.ts
-var import_react16 = __toESM(require("react"));
+var import_react17 = require("react");
 function parseActionOptions(options) {
@@ -323,8 +330,6 @@ if (!options) {
 }
-var _a3;
-var useTransition = (_a3 = import_react16.default.useTransition) != null ? _a3 : () => [false, (cb) => cb()];
 function useActions() {
   const coreActions = useCoreActions();
   const [pending] = useTransition();
-  return (0, import_react16.useMemo)(
+  return (0, import_react17.useMemo)(
     () => ({
@@ -345,6 +350,6 @@ pending,
       replace(activityName, activityParams, options) {
-        var _a5;
+        var _a4;
         const activityId = makeActivityId();
         coreActions == null ? void 0 : coreActions.replace({
-          activityId: (_a5 = options == null ? void 0 : options.activityId) != null ? _a5 : makeActivityId(),
+          activityId: (_a4 = options == null ? void 0 : options.activityId) != null ? _a4 : makeActivityId(),
           activityName,
@@ -369,9 +374,7 @@ activityParams,
 // src/useStepActions.ts
-var import_react17 = __toESM(require("react"));
-var _a4;
-var useTransition2 = (_a4 = import_react17.default.useTransition) != null ? _a4 : () => [false, (cb) => cb()];
+var import_react18 = require("react");
 var useStepActions = () => {
   const coreActions = useCoreActions();
-  const [pending] = useTransition2();
-  return (0, import_react17.useMemo)(
+  const [pending] = useTransition();
+  return (0, import_react18.useMemo)(
     () => ({
@@ -419,3 +422,3 @@ pending,
 function stackflow(options) {
-  var _a5;
+  var _a4;
   if (typeof window !== "undefined") {
@@ -428,7 +431,7 @@ const html = window.document.documentElement;
   }
-  const plugins = ((_a5 = options.plugins) != null ? _a5 : []).flat(Infinity).map((p) => p);
+  const plugins = ((_a4 = options.plugins) != null ? _a4 : []).flat(Infinity).map((p) => p);
   const pluginInstances = plugins.map((plugin) => plugin());
   const activityComponentMap = Object.entries(options.activities).reduce(
     (acc, [key, Activity]) => __spreadProps(__spreadValues({}, acc), {
-      [key]: "component" in Activity ? import_react18.default.memo(Activity.component) : import_react18.default.memo(Activity)
+      [key]: "component" in Activity ? import_react19.default.memo(Activity.component) : import_react19.default.memo(Activity)
     }),
@@ -456,4 +459,4 @@ {}
   const [getCoreStore, setCoreStore] = makeRef();
-  const Stack = import_react18.default.memo((props) => {
-    const coreStore = (0, import_react18.useMemo)(() => {
+  const Stack = import_react19.default.memo((props) => {
+    const coreStore = (0, import_react19.useMemo)(() => {
       const prevCoreStore = getCoreStore();
@@ -474,6 +477,6 @@ if (isBrowser && prevCoreStore) {
         (initialEvents, pluginInstance) => {
-          var _a6, _b, _c;
+          var _a5, _b, _c;
           return (_c = (_b = pluginInstance.overrideInitialEvents) == null ? void 0 : _b.call(pluginInstance, {
             initialEvents,
-            initialContext: (_a6 = props.initialContext) != null ? _a6 : {}
+            initialContext: (_a5 = props.initialContext) != null ? _a5 : {}
           })) != null ? _c : initialEvents;
@@ -507,7 +510,7 @@ },
     }, []);
-    return /* @__PURE__ */ import_react18.default.createElement(PluginsProvider, {
+    return /* @__PURE__ */ import_react19.default.createElement(PluginsProvider, {
       value: pluginInstances
-    }, /* @__PURE__ */ import_react18.default.createElement(CoreProvider, {
+    }, /* @__PURE__ */ import_react19.default.createElement(CoreProvider, {
       coreStore
-    }, /* @__PURE__ */ import_react18.default.createElement(MainRenderer_default, {
+    }, /* @__PURE__ */ import_react19.default.createElement(MainRenderer_default, {
       activityComponentMap
@@ -529,3 +532,3 @@ })));
       }
-      activityComponentMap[activity.name] = import_react18.default.memo(activity.component);
+      activityComponentMap[activity.name] = import_react19.default.memo(activity.component);
       staticCoreStore.actions.dispatchEvent("ActivityRegistered", {
@@ -551,13 +554,13 @@ activityName: activity.name,
       getStack() {
-        var _a6, _b;
-        return (_b = (_a6 = getCoreStore()) == null ? void 0 : _a6.actions.getStack()) != null ? _b : staticCoreStore.actions.getStack();
+        var _a5, _b;
+        return (_b = (_a5 = getCoreStore()) == null ? void 0 : _a5.actions.getStack()) != null ? _b : staticCoreStore.actions.getStack();
       },
       dispatchEvent(name, parameters) {
-        var _a6;
-        return (_a6 = getCoreStore()) == null ? void 0 : _a6.actions.dispatchEvent(name, parameters);
+        var _a5;
+        return (_a5 = getCoreStore()) == null ? void 0 : _a5.actions.dispatchEvent(name, parameters);
       },
       push(activityName, activityParams, options2) {
-        var _a6;
+        var _a5;
         const activityId = makeActivityId();
-        (_a6 = getCoreStore()) == null ? void 0 : _a6.actions.push({
+        (_a5 = getCoreStore()) == null ? void 0 : _a5.actions.push({
           activityId,
@@ -573,4 +576,4 @@ activityName,
       replace(activityName, activityParams, options2) {
-        var _a6, _b, _c;
-        const activityId = (_a6 = options2 == null ? void 0 : options2.activityId) != null ? _a6 : makeActivityId();
+        var _a5, _b, _c;
+        const activityId = (_a5 = options2 == null ? void 0 : options2.activityId) != null ? _a5 : makeActivityId();
         (_c = getCoreStore()) == null ? void 0 : _c.actions.replace({
@@ -587,4 +590,4 @@ activityId: (_b = options2 == null ? void 0 : options2.activityId) != null ? _b : makeActivityId(),
       pop(options2) {
-        var _a6;
-        return (_a6 = getCoreStore()) == null ? void 0 : _a6.actions.pop({
+        var _a5;
+        return (_a5 = getCoreStore()) == null ? void 0 : _a5.actions.pop({
           skipExitActiveState: parseActionOptions2(options2).skipActiveState
@@ -594,5 +597,5 @@ });
       stepPush(params) {
-        var _a6;
+        var _a5;
         const stepId = makeStepId();
-        return (_a6 = getCoreStore()) == null ? void 0 : _a6.actions.stepPush({
+        return (_a5 = getCoreStore()) == null ? void 0 : _a5.actions.stepPush({
           stepId,
@@ -603,5 +606,5 @@ stepParams: params
       stepReplace(params) {
-        var _a6;
+        var _a5;
         const stepId = makeStepId();
-        return (_a6 = getCoreStore()) == null ? void 0 : _a6.actions.stepReplace({
+        return (_a5 = getCoreStore()) == null ? void 0 : _a5.actions.stepReplace({
           stepId,
@@ -612,4 +615,4 @@ stepParams: params
       stepPop() {
-        var _a6;
-        return (_a6 = getCoreStore()) == null ? void 0 : _a6.actions.stepPop({});
+        var _a5;
+        return (_a5 = getCoreStore()) == null ? void 0 : _a5.actions.stepPop({});
       }
@@ -621,3 +624,3 @@ }
 // src/useActiveEffect.ts
-var import_react19 = require("react");
+var import_react20 = require("react");
 var noop = () => {
@@ -627,3 +630,3 @@ };
   const { isActive } = useActivity();
-  (0, import_react19.useEffect)(() => {
+  (0, import_react20.useEffect)(() => {
     if (isActive) {
@@ -637,3 +640,22 @@ return effect();
 // src/useEnterDoneEffect.ts
-var import_react20 = require("react");
+var import_react21 = require("react");
+var noop2 = () => {
+};
+var useEnterDoneEffect = (effect, deps = []) => {
+  const { isTop, transitionState } = useActivity();
+  (0, import_react21.useEffect)(() => {
+    if (isTop && transitionState === "enter-done") {
+      return effect();
+    }
+    return noop2;
+  }, [isTop, transitionState, ...deps]);
+};
+
+// src/useStep.ts
+var import_react22 = require("react");
+function useStep() {
+  var _a4;
+  const { steps, id: id3 } = (0, import_react22.useContext)(ActivityContext);
+  return (_a4 = steps.filter((step) => step.id !== id3).at(-1)) != null ? _a4 : null;
+}
 //# sourceMappingURL=index.js.map

dist/index.js.map

 {
   "version": 3,
-  "sources": ["../src/index.ts", "../src/activity/useActivity.ts", "../src/activity/ActivityProvider.tsx", "../src/utils/makeRef.ts", "../src/utils/useMemoDeep.ts", "../src/activity/useActivityParams.ts", "../src/stack/useStack.ts", "../src/stack/StackProvider.tsx", "../src/stackflow.tsx", "../src/activity/makeActivityId.ts", "../src/activity/makeStepId.ts", "../src/core/CoreProvider.tsx", "../src/shims/useDeferredValue.ts", "../src/shims/useSyncExternalStore.ts", "../src/core/useCoreActions.ts", "../src/core/useCoreState.ts", "../src/MainRenderer.tsx", "../src/PluginRenderer.tsx", "../src/plugins/PluginsProvider.tsx", "../src/plugins/usePlugins.ts", "../src/useActions.ts", "../src/useStepActions.ts", "../src/useActiveEffect.ts", "../src/useEnterDoneEffect.ts"],
-  "sourcesContent": ["export * from \"./activity/ActivityComponentType\";\nexport * from \"./activity/useActivity\";\nexport * from \"./activity/useActivityParams\";\nexport * from \"./stack/useStack\";\nexport * from \"./stackflow\";\nexport * from \"./StackflowReactPlugin\";\nexport * from \"./useActions\";\nexport * from \"./useActiveEffect\";\nexport * from \"./useEnterDoneEffect\";\nexport * from \"./useStepActions\";\n", "import { useContext } from \"react\";\n\nimport { ActivityContext } from \"./ActivityProvider\";\n\n/**\n * Get current activity state\n */\nexport const useActivity = () => useContext(ActivityContext);\n", "import type { Activity } from \"@stackflow/core\";\nimport React, { createContext } from \"react\";\n\nimport { useMemoDeep } from \"../utils\";\n\nexport const ActivityContext = createContext<Activity>(null as any);\n\ninterface ActivityProviderProps {\n  children: React.ReactNode;\n  value: Activity;\n}\nexport const ActivityProvider: React.FC<ActivityProviderProps> = ({\n  children,\n  value,\n}) => (\n  <ActivityContext.Provider value={useMemoDeep(value)}>\n    {children}\n  </ActivityContext.Provider>\n);\n\nActivityProvider.displayName = \"ActivityProvider\";\n", "export function makeRef<T>(): [() => T | null, (value: T) => void] {\n  const ref: {\n    value: T | null;\n  } = {\n    value: null,\n  };\n  function get() {\n    return ref.value;\n  }\n  function set(value: T) {\n    ref.value = value;\n  }\n\n  return [get, set];\n}\n", "import { useEffect, useRef } from \"react\";\nimport compare from \"react-fast-compare\";\n\nexport function useMemoDeep<T>(next: T) {\n  const previousRef = useRef(next);\n  const previous = previousRef.current;\n  const isEqual = compare(previous, next);\n\n  useEffect(() => {\n    if (!isEqual) {\n      previousRef.current = next;\n    }\n  });\n\n  return isEqual ? previous : next;\n}\n", "import { useContext } from \"react\";\n\nimport { ActivityContext } from \"./ActivityProvider\";\n\n/**\n * Get current activity parameters\n */\nexport function useActivityParams<\n  T extends { [key in keyof T]: string | undefined },\n>(): T {\n  return useContext(ActivityContext).params as T;\n}\n", "import { useContext } from \"react\";\n\nimport { StackContext } from \"./StackProvider\";\n\n/**\n * Get overall stack state\n */\nexport const useStack = () => useContext(StackContext);\n", "import type { Stack } from \"@stackflow/core\";\nimport React, { createContext } from \"react\";\n\nimport { useMemoDeep } from \"../utils\";\n\nexport const StackContext = createContext<Stack>(null as any);\n\ninterface StackProviderProps {\n  children: React.ReactNode;\n  value: Stack;\n}\nexport const StackProvider: React.FC<StackProviderProps> = ({\n  children,\n  value,\n}) => (\n  <StackContext.Provider value={useMemoDeep(value)}>\n    {children}\n  </StackContext.Provider>\n);\n\nStackProvider.displayName = \"StackProvider\";\n", "import type {\n  ActivityRegisteredEvent,\n  CoreStore,\n  PushedEvent,\n  StackflowActions,\n  StepPushedEvent,\n} from \"@stackflow/core\";\nimport { makeCoreStore, makeEvent } from \"@stackflow/core\";\nimport React, { useMemo } from \"react\";\n\nimport type { ActivityComponentType } from \"./activity\";\nimport { makeActivityId, makeStepId } from \"./activity\";\nimport type { BaseActivities } from \"./BaseActivities\";\nimport { CoreProvider } from \"./core\";\nimport MainRenderer from \"./MainRenderer\";\nimport { PluginsProvider } from \"./plugins\";\nimport type { StackflowReactPlugin } from \"./StackflowReactPlugin\";\nimport type { UseActionsOutputType } from \"./useActions\";\nimport { useActions } from \"./useActions\";\nimport type {\n  UseStepActions,\n  UseStepActionsOutputType,\n} from \"./useStepActions\";\nimport { useStepActions } from \"./useStepActions\";\nimport { makeRef } from \"./utils\";\n\nconst isBrowser = typeof window !== \"undefined\";\n\nfunction parseActionOptions(options?: { animate?: boolean }) {\n  if (!options) {\n    return { skipActiveState: false };\n  }\n\n  const isNullableAnimateOption =\n    options.animate === undefined || options.animate == null;\n  if (isNullableAnimateOption) {\n    return { skipActiveState: false };\n  }\n\n  return { skipActiveState: !options.animate };\n}\n\nexport type StackComponentType = React.FC<{\n  initialContext?: any;\n}>;\n\ntype StackflowPluginsEntry<T extends BaseActivities> =\n  | StackflowReactPlugin<T>\n  | StackflowPluginsEntry<T>[];\n\nexport type StackflowOptions<T extends BaseActivities> = {\n  /**\n   * Register activities used in your app\n   */\n  activities: T;\n\n  /**\n   * Transition duration for stack animation (millisecond)\n   */\n  transitionDuration: number;\n\n  /**\n   * Set the first activity to load at the bottom\n   * (It can be overwritten by plugin)\n   */\n  initialActivity?: () => Extract<keyof T, string>;\n\n  /**\n   * Inject stackflow plugins\n   */\n  plugins?: Array<StackflowPluginsEntry<T>>;\n};\n\nexport type StackflowOutput<T extends BaseActivities> = {\n  /**\n   * Return activities\n   */\n  activities: T;\n\n  /**\n   * Created `<Stack />` component\n   */\n  Stack: StackComponentType;\n\n  /**\n   * Created `useFlow()` hooks\n   */\n  useFlow: () => UseActionsOutputType<T>;\n\n  /**\n   * Created `useStepFlow()` hooks\n   */\n  useStepFlow: UseStepActions<T>;\n\n  /**\n   * Add activity imperatively\n   */\n  addActivity: (options: {\n    name: string;\n    component: ActivityComponentType<any>;\n    paramsSchema?: ActivityRegisteredEvent[\"activityParamsSchema\"];\n  }) => void;\n\n  /**\n   * Add plugin imperatively\n   */\n  addPlugin: (plugin: StackflowPluginsEntry<T>) => void;\n\n  /**\n   * Created action triggers\n   */\n  actions: Pick<StackflowActions, \"dispatchEvent\" | \"getStack\"> &\n    Pick<UseActionsOutputType<T>, \"push\" | \"pop\" | \"replace\"> &\n    Pick<UseStepActionsOutputType<{}>, \"stepPush\" | \"stepReplace\" | \"stepPop\">;\n};\n\n/**\n * Make `<Stack />` component and `useFlow()` hooks that strictly typed with `activities`\n */\nexport function stackflow<T extends BaseActivities>(\n  options: StackflowOptions<T>,\n): StackflowOutput<T> {\n  if (typeof window !== \"undefined\") {\n    const html = window.document.documentElement;\n\n    // <html style=\"--stackflow-transition-duration:350ms;\">\n    html.style.setProperty(\n      \"--stackflow-transition-duration\",\n      `${options.transitionDuration}ms`,\n    );\n  }\n\n  const plugins = (options.plugins ?? [])\n    .flat(Infinity as 0)\n    .map((p) => p as StackflowReactPlugin<T>);\n  const pluginInstances = plugins.map((plugin) => plugin());\n\n  const activityComponentMap = Object.entries(options.activities).reduce(\n    (acc, [key, Activity]) => ({\n      ...acc,\n      [key]:\n        \"component\" in Activity\n          ? React.memo(Activity.component)\n          : React.memo(Activity),\n    }),\n    {} as {\n      [key: string]: ActivityComponentType;\n    },\n  );\n\n  const enoughPastTime = () =>\n    new Date().getTime() - options.transitionDuration * 2;\n\n  const staticCoreStore = makeCoreStore({\n    initialEvents: [\n      makeEvent(\"Initialized\", {\n        transitionDuration: options.transitionDuration,\n        eventDate: enoughPastTime(),\n      }),\n      ...Object.entries(options.activities).map(([activityName, Activity]) =>\n        makeEvent(\"ActivityRegistered\", {\n          activityName,\n          eventDate: enoughPastTime(),\n          ...(\"component\" in Activity\n            ? {\n                activityParamsSchema: Activity.paramsSchema,\n              }\n            : null),\n        }),\n      ),\n    ],\n    plugins: [],\n  });\n\n  const [getCoreStore, setCoreStore] = makeRef<CoreStore>();\n\n  const Stack: StackComponentType = React.memo((props) => {\n    const coreStore = useMemo(() => {\n      const prevCoreStore = getCoreStore();\n\n      // In a browser environment,\n      // memoize `coreStore` so that only one `coreStore` exists throughout the entire app.\n      if (isBrowser && prevCoreStore) {\n        return prevCoreStore;\n      }\n\n      const initialPushedEventsByOption = options.initialActivity\n        ? [\n            makeEvent(\"Pushed\", {\n              activityId: makeActivityId(),\n              activityName: options.initialActivity(),\n              activityParams: {},\n              eventDate: enoughPastTime(),\n              skipEnterActiveState: false,\n            }),\n          ]\n        : [];\n\n      const initialPushedEvents = pluginInstances.reduce<\n        (PushedEvent | StepPushedEvent)[]\n      >(\n        (initialEvents, pluginInstance) =>\n          pluginInstance.overrideInitialEvents?.({\n            initialEvents,\n            initialContext: props.initialContext ?? {},\n          }) ?? initialEvents,\n        initialPushedEventsByOption,\n      );\n\n      const isInitialActivityIgnored =\n        initialPushedEvents.length > 0 &&\n        initialPushedEventsByOption.length > 0 &&\n        initialPushedEvents !== initialPushedEventsByOption;\n\n      if (isInitialActivityIgnored) {\n        // eslint-disable-next-line no-console\n        console.warn(\n          `Stackflow -` +\n            ` Some plugin overrides an \"initialActivity\" option.` +\n            ` The \"initialActivity\" option you set to \"${initialPushedEventsByOption[0].activityName}\" in the \"stackflow\" is ignored.`,\n        );\n      }\n\n      if (initialPushedEvents.length === 0) {\n        // eslint-disable-next-line no-console\n        console.warn(\n          `Stackflow -` +\n            ` There is no initial activity.` +\n            \" If you want to set the initial activity,\" +\n            \" add the `initialActivity` option of the `stackflow()` function or\" +\n            \" add a plugin that sets the initial activity. (e.g. `@stackflow/plugin-history-sync`)\",\n        );\n      }\n\n      const store = makeCoreStore({\n        initialEvents: [\n          ...staticCoreStore.pullEvents(),\n          ...initialPushedEvents,\n        ],\n        plugins,\n      });\n\n      if (isBrowser) {\n        store.init();\n        setCoreStore(store);\n      }\n\n      return store;\n    }, []);\n\n    return (\n      <PluginsProvider value={pluginInstances}>\n        <CoreProvider coreStore={coreStore}>\n          <MainRenderer activityComponentMap={activityComponentMap} />\n        </CoreProvider>\n      </PluginsProvider>\n    );\n  });\n\n  Stack.displayName = \"Stack\";\n\n  return {\n    activities: options.activities,\n    Stack,\n    useFlow: useActions,\n    useStepFlow: useStepActions,\n    addActivity(activity) {\n      if (getCoreStore()) {\n        // eslint-disable-next-line no-console\n        console.warn(\n          `Stackflow -` +\n            \" `addActivity()` API cannot be called after a `<Stack />` component has been rendered\",\n        );\n\n        return;\n      }\n\n      activityComponentMap[activity.name] = React.memo(activity.component);\n\n      staticCoreStore.actions.dispatchEvent(\"ActivityRegistered\", {\n        activityName: activity.name,\n        activityParamsSchema: activity.paramsSchema,\n        eventDate: enoughPastTime(),\n      });\n    },\n    addPlugin(plugin) {\n      if (getCoreStore()) {\n        // eslint-disable-next-line no-console\n        console.warn(\n          `Stackflow -` +\n            \" `addPlugin()` API cannot be called after a `<Stack />` component has been rendered\",\n        );\n\n        return;\n      }\n\n      [plugin]\n        .flat(Infinity as 0)\n        .map((p) => p as StackflowReactPlugin<T>)\n        .forEach((p) => {\n          plugins.push(p);\n          pluginInstances.push(p());\n        });\n    },\n    actions: {\n      getStack() {\n        return (\n          getCoreStore()?.actions.getStack() ??\n          staticCoreStore.actions.getStack()\n        );\n      },\n      dispatchEvent(name, parameters) {\n        return getCoreStore()?.actions.dispatchEvent(name, parameters);\n      },\n      push(activityName, activityParams, options) {\n        const activityId = makeActivityId();\n\n        getCoreStore()?.actions.push({\n          activityId,\n          activityName,\n          activityParams,\n          skipEnterActiveState: parseActionOptions(options).skipActiveState,\n        });\n\n        return {\n          activityId,\n        };\n      },\n      replace(activityName, activityParams, options) {\n        const activityId = options?.activityId ?? makeActivityId();\n\n        getCoreStore()?.actions.replace({\n          activityId: options?.activityId ?? makeActivityId(),\n          activityName,\n          activityParams,\n          skipEnterActiveState: parseActionOptions(options).skipActiveState,\n        });\n\n        return {\n          activityId,\n        };\n      },\n      pop(options) {\n        return getCoreStore()?.actions.pop({\n          skipExitActiveState: parseActionOptions(options).skipActiveState,\n        });\n      },\n      stepPush(params) {\n        const stepId = makeStepId();\n\n        return getCoreStore()?.actions.stepPush({\n          stepId,\n          stepParams: params,\n        });\n      },\n      stepReplace(params) {\n        const stepId = makeStepId();\n\n        return getCoreStore()?.actions.stepReplace({\n          stepId,\n          stepParams: params,\n        });\n      },\n      stepPop() {\n        return getCoreStore()?.actions.stepPop({});\n      },\n    },\n  };\n}\n", "import { id } from \"@stackflow/core\";\n\nexport function makeActivityId() {\n  return id();\n}\n", "import { id } from \"@stackflow/core\";\n\nexport function makeStepId() {\n  return id();\n}\n", "import type { CoreStore, Stack } from \"@stackflow/core\";\nimport React, { createContext } from \"react\";\n\nimport { useDeferredValue, useSyncExternalStore } from \"../shims\";\n\nexport const CoreActionsContext = createContext<CoreStore[\"actions\"]>(\n  null as any,\n);\nexport const CoreStateContext = createContext<Stack>(null as any);\n\nexport interface CoreProviderProps {\n  coreStore: CoreStore;\n  children: React.ReactNode;\n}\nexport const CoreProvider: React.FC<CoreProviderProps> = ({\n  coreStore,\n  children,\n}) => {\n  const stack = useSyncExternalStore(\n    coreStore.subscribe,\n    coreStore.actions.getStack,\n    coreStore.actions.getStack,\n  );\n\n  const deferredStack = useDeferredValue(stack);\n\n  return (\n    <CoreStateContext.Provider value={deferredStack}>\n      <CoreActionsContext.Provider value={coreStore.actions}>\n        {children}\n      </CoreActionsContext.Provider>\n    </CoreStateContext.Provider>\n  );\n};\n\nCoreProvider.displayName = \"CoreProvider\";\n", "import React from \"react\";\n\nexport const useDeferredValue: typeof React.useDeferredValue =\n  React.useDeferredValue ?? ((value) => value);\n", "import React, { useEffect, useState } from \"react\";\n\nexport const useSyncExternalStore: typeof React.useSyncExternalStore =\n  React.useSyncExternalStore ??\n  ((subscribe, getSnapshot) => {\n    const [state, setState] = useState(() => getSnapshot());\n\n    useEffect(() => {\n      const dispose = subscribe(() => {\n        setState(() => getSnapshot());\n      });\n\n      return dispose;\n    });\n\n    return state;\n  });\n", "import React from \"react\";\n\nimport { CoreActionsContext } from \"./CoreProvider\";\n\nexport const useCoreActions = () => React.useContext(CoreActionsContext);\n", "import React from \"react\";\n\nimport { CoreStateContext } from \"./CoreProvider\";\n\nexport const useCoreState = () => React.useContext(CoreStateContext);\n", "import React, { useEffect } from \"react\";\n\nimport type { ActivityComponentType } from \"./activity\";\nimport { useCoreState } from \"./core\";\nimport PluginRenderer from \"./PluginRenderer\";\nimport { usePlugins } from \"./plugins\";\nimport type { WithRequired } from \"./utils\";\n\ninterface MainRendererProps {\n  activityComponentMap: {\n    [key: string]: ActivityComponentType;\n  };\n}\nconst MainRenderer: React.FC<MainRendererProps> = ({\n  activityComponentMap,\n}) => {\n  const coreState = useCoreState();\n  const plugins = usePlugins();\n\n  const renderingPlugins = plugins.filter(\n    (plugin): plugin is WithRequired<typeof plugin, \"render\"> =>\n      !!plugin.render,\n  );\n\n  useEffect(() => {\n    if (renderingPlugins.length === 0) {\n      // eslint-disable-next-line no-console\n      console.warn(\n        `Stackflow -` +\n          ` There is no rendering plugin, so \"<Stack />\" doesn't render anything.` +\n          ` If you want to render some UI, use \"@stackflow/plugin-renderer-basic\"` +\n          ` or add another rendering plugin.`,\n      );\n    }\n  }, [renderingPlugins]);\n\n  let output = (\n    <>\n      {renderingPlugins.map((plugin) => (\n        <PluginRenderer\n          key={plugin.key}\n          activityComponentMap={activityComponentMap}\n          plugin={plugin}\n        />\n      ))}\n    </>\n  );\n\n  plugins.forEach((plugin) => {\n    output =\n      plugin.wrapStack?.({\n        stack: {\n          ...coreState,\n          render() {\n            return output;\n          },\n        },\n      }) ?? output;\n  });\n\n  return output;\n};\n\nMainRenderer.displayName = \"MainRenderer\";\n\nexport default MainRenderer;\n", "import React from \"react\";\n\nimport type { ActivityComponentType } from \"./activity\";\nimport { ActivityProvider } from \"./activity\";\nimport { useCoreState } from \"./core\";\nimport { usePlugins } from \"./plugins\";\nimport { StackProvider } from \"./stack\";\nimport type { StackflowReactPlugin } from \"./StackflowReactPlugin\";\nimport type { WithRequired } from \"./utils\";\n\ninterface PluginRendererProps {\n  activityComponentMap: {\n    [key: string]: ActivityComponentType;\n  };\n  plugin: WithRequired<ReturnType<StackflowReactPlugin>, \"render\">;\n}\nconst PluginRenderer: React.FC<PluginRendererProps> = ({\n  activityComponentMap,\n  plugin,\n}) => {\n  const coreState = useCoreState();\n  const plugins = usePlugins();\n\n  return plugin.render({\n    stack: {\n      ...coreState,\n      render(overrideStack) {\n        const stack = {\n          ...coreState,\n          ...overrideStack,\n        };\n\n        return {\n          activities: stack.activities.map((activity) => ({\n            ...activity,\n            key: activity.id,\n            render(overrideActivity) {\n              const Activity = activityComponentMap[activity.name];\n\n              let output: React.ReactNode = (\n                <Activity params={activity.params} />\n              );\n\n              plugins.forEach((p) => {\n                output =\n                  p.wrapActivity?.({\n                    activity: {\n                      ...activity,\n                      render: () => output,\n                    },\n                  }) ?? output;\n              });\n\n              return (\n                <StackProvider value={stack}>\n                  <ActivityProvider\n                    key={activity.id}\n                    value={{\n                      ...activity,\n                      ...overrideActivity,\n                    }}\n                  >\n                    {output}\n                  </ActivityProvider>\n                </StackProvider>\n              );\n            },\n          })),\n        };\n      },\n    },\n  });\n};\n\nPluginRenderer.displayName = \"PluginRenderer\";\n\nexport default PluginRenderer;\n", "import React, { createContext } from \"react\";\n\nimport type { StackflowReactPlugin } from \"../StackflowReactPlugin\";\n\nexport type PluginsContextValue = Array<ReturnType<StackflowReactPlugin>>;\nexport const PluginsContext = createContext<PluginsContextValue>(null as any);\n\ninterface PluginsProviderProps {\n  children: React.ReactNode;\n  value: PluginsContextValue;\n}\nexport const PluginsProvider: React.FC<PluginsProviderProps> = ({\n  children,\n  value,\n}) => (\n  <PluginsContext.Provider value={value}>{children}</PluginsContext.Provider>\n);\n\nPluginsProvider.displayName = \"PluginsProvider\";\n", "import { useContext } from \"react\";\n\nimport { PluginsContext } from \"./PluginsProvider\";\n\nexport function usePlugins() {\n  return useContext(PluginsContext);\n}\n", "import React, { useMemo } from \"react\";\n\nimport type { ActivityComponentType } from \"./activity\";\nimport { makeActivityId } from \"./activity\";\nimport type { BaseActivities } from \"./BaseActivities\";\nimport { useCoreActions } from \"./core\";\n\nfunction parseActionOptions(options?: { animate?: boolean }) {\n  if (!options) {\n    return { skipActiveState: false };\n  }\n\n  const isNullableAnimateOption =\n    options.animate === undefined || options.animate == null;\n  if (isNullableAnimateOption) {\n    return { skipActiveState: false };\n  }\n\n  return { skipActiveState: !options.animate };\n}\n\nexport type UseActionsOutputType<T extends BaseActivities> = {\n  /**\n   * Is transition pending\n   */\n  pending: boolean;\n\n  /**\n   * Push new activity\n   */\n  push: <K extends Extract<keyof T, string>>(\n    activityName: K,\n    params: T[K] extends\n      | ActivityComponentType<infer U>\n      | { component: ActivityComponentType<infer U> }\n      ? U\n      : {},\n    options?: {\n      animate?: boolean;\n    },\n  ) => {\n    activityId: string;\n  };\n\n  /**\n   * Push new activity in the top and remove current top activity when new activity is activated\n   */\n  replace: <K extends Extract<keyof T, string>>(\n    activityName: K,\n    params: T[K] extends\n      | ActivityComponentType<infer U>\n      | { component: ActivityComponentType<infer U> }\n      ? U\n      : {},\n    options?: {\n      animate?: boolean;\n      activityId?: string;\n    },\n  ) => {\n    activityId: string;\n  };\n\n  /**\n   * Remove top activity\n   */\n  pop: (options?: { animate?: boolean }) => void;\n};\n\nconst useTransition: () => [boolean, React.TransitionStartFunction] =\n  React.useTransition ?? (() => [false, (cb: () => void) => cb()]);\n\nexport function useActions<\n  T extends BaseActivities,\n>(): UseActionsOutputType<T> {\n  const coreActions = useCoreActions();\n  const [pending] = useTransition();\n\n  return useMemo(\n    () => ({\n      pending,\n      push(activityName, activityParams, options) {\n        const activityId = makeActivityId();\n\n        coreActions?.push({\n          activityId,\n          activityName,\n          activityParams,\n          skipEnterActiveState: parseActionOptions(options).skipActiveState,\n        });\n\n        return {\n          activityId,\n        };\n      },\n      replace(activityName, activityParams, options) {\n        const activityId = makeActivityId();\n\n        coreActions?.replace({\n          activityId: options?.activityId ?? makeActivityId(),\n          activityName,\n          activityParams,\n          skipEnterActiveState: parseActionOptions(options).skipActiveState,\n        });\n\n        return {\n          activityId,\n        };\n      },\n      pop(options) {\n        coreActions?.pop({\n          skipExitActiveState: parseActionOptions(options).skipActiveState,\n        });\n      },\n    }),\n    [coreActions?.push, coreActions?.replace, coreActions?.pop, pending],\n  );\n}\n", "import React, { useMemo } from \"react\";\n\nimport type { ActivityComponentType } from \"./activity\";\nimport { makeStepId } from \"./activity\";\nimport type { BaseActivities } from \"./BaseActivities\";\nimport { useCoreActions } from \"./core\";\n\nexport type UseStepActionsOutputType<P> = {\n  pending: boolean;\n  stepPush: (params: P, options?: {}) => void;\n  stepReplace: (params: P, options?: {}) => void;\n  stepPop: (options?: {}) => void;\n};\n\nexport type UseStepActions<T extends BaseActivities = {}> = <\n  K extends Extract<keyof T, string>,\n>(\n  activityName: K,\n) => UseStepActionsOutputType<\n  T[K] extends\n    | ActivityComponentType<infer U>\n    | { component: ActivityComponentType<infer U> }\n    ? U\n    : {}\n>;\n\nconst useTransition: () => [boolean, React.TransitionStartFunction] =\n  React.useTransition ?? (() => [false, (cb: () => void) => cb()]);\n\nexport const useStepActions: UseStepActions = () => {\n  const coreActions = useCoreActions();\n  const [pending] = useTransition();\n\n  return useMemo(\n    () => ({\n      pending,\n      stepPush(params) {\n        const stepId = makeStepId();\n\n        coreActions?.stepPush({\n          stepId,\n          stepParams: params,\n        });\n      },\n      stepReplace(params) {\n        const stepId = makeStepId();\n\n        coreActions?.stepReplace({\n          stepId,\n          stepParams: params,\n        });\n      },\n      stepPop() {\n        coreActions?.stepPop({});\n      },\n    }),\n    [\n      coreActions?.stepPush,\n      coreActions?.stepReplace,\n      coreActions?.stepPop,\n      pending,\n    ],\n  );\n};\n", "import { useEffect } from \"react\";\n\nimport { useActivity } from \"./activity/useActivity\";\n\nconst noop = () => {};\n\nexport const useActiveEffect = (effect: React.EffectCallback) => {\n  const { isActive } = useActivity();\n\n  useEffect(() => {\n    if (isActive) {\n      return effect();\n    }\n\n    return noop;\n  }, [isActive]);\n};\n", "import { useEffect } from \"react\";\n\nimport { useActivity } from \"./activity/useActivity\";\n\nconst useEnterDoneEffect = (\n  effect: React.EffectCallback,\n  deps: React.DependencyList = [],\n) => {\n  const { isTop, transitionState } = useActivity();\n\n  useEffect(() => {\n    if (isTop && transitionState === \"enter-done\") {\n      return effect();\n    }\n  }, [isTop, transitionState, ...deps]);\n};\n\nexport default useEnterDoneEffect;\n"],
-  "mappings": 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-  "names": ["import_react", "import_react", "compare", "React", "import_react", "import_react", "import_react", "React", "import_core", "import_react", "import_core", "import_react", "import_react", "React", "import_react", "_a", "React", "React", "import_react", "React", "import_react", "React", "import_react", "import_react", "import_react", "React", "import_react", "React", "_a", "React", "_a", "import_react", "_a", "React", "import_react", "_a", "useTransition", "React", "parseActionOptions", "_a", "React", "options", "import_react", "import_react"]
+  "sources": ["../src/index.ts", "../src/activity/useActivity.ts", "../src/activity/ActivityProvider.tsx", "../src/utils/makeRef.ts", "../src/utils/useMemoDeep.ts", "../src/activity/useActivityParams.ts", "../src/stack/useStack.ts", "../src/stack/StackProvider.tsx", "../src/stackflow.tsx", "../src/activity/makeActivityId.ts", "../src/activity/makeStepId.ts", "../src/core/CoreProvider.tsx", "../src/shims/useDeferredValue.ts", "../src/shims/useSyncExternalStore.ts", "../src/shims/useTransition.ts", "../src/core/useCoreActions.ts", "../src/core/useCoreState.ts", "../src/MainRenderer.tsx", "../src/PluginRenderer.tsx", "../src/plugins/PluginsProvider.tsx", "../src/plugins/usePlugins.ts", "../src/useActions.ts", "../src/useStepActions.ts", "../src/useActiveEffect.ts", "../src/useEnterDoneEffect.ts", "../src/useStep.ts"],
+  "sourcesContent": ["export * from \"./activity/ActivityComponentType\";\nexport * from \"./activity/useActivity\";\nexport * from \"./activity/useActivityParams\";\nexport * from \"./stack/useStack\";\nexport * from \"./stackflow\";\nexport * from \"./StackflowReactPlugin\";\nexport * from \"./useActions\";\nexport * from \"./useActiveEffect\";\nexport * from \"./useEnterDoneEffect\";\nexport * from \"./useStep\";\nexport * from \"./useStepActions\";\n", "import { useContext } from \"react\";\n\nimport { ActivityContext } from \"./ActivityProvider\";\n\n/**\n * Get current activity state\n */\nexport const useActivity = () => useContext(ActivityContext);\n", "import type { Activity } from \"@stackflow/core\";\nimport React, { createContext } from \"react\";\n\nimport { useMemoDeep } from \"../utils\";\n\nexport const ActivityContext = createContext<Activity>(null as any);\n\ninterface ActivityProviderProps {\n  children: React.ReactNode;\n  value: Activity;\n}\nexport const ActivityProvider: React.FC<ActivityProviderProps> = ({\n  children,\n  value,\n}) => (\n  <ActivityContext.Provider value={useMemoDeep(value)}>\n    {children}\n  </ActivityContext.Provider>\n);\n\nActivityProvider.displayName = \"ActivityProvider\";\n", "export function makeRef<T>(): [() => T | null, (value: T) => void] {\n  const ref: {\n    value: T | null;\n  } = {\n    value: null,\n  };\n  function get() {\n    return ref.value;\n  }\n  function set(value: T) {\n    ref.value = value;\n  }\n\n  return [get, set];\n}\n", "import { useEffect, useRef } from \"react\";\nimport compare from \"react-fast-compare\";\n\nexport function useMemoDeep<T>(next: T) {\n  const previousRef = useRef(next);\n  const previous = previousRef.current;\n  const isEqual = compare(previous, next);\n\n  useEffect(() => {\n    if (!isEqual) {\n      previousRef.current = next;\n    }\n  });\n\n  return isEqual ? previous : next;\n}\n", "import { useContext } from \"react\";\n\nimport { ActivityContext } from \"./ActivityProvider\";\n\n/**\n * Get current activity parameters\n */\nexport function useActivityParams<\n  T extends { [key in keyof T]: string | undefined },\n>(): T {\n  return useContext(ActivityContext).params as T;\n}\n", "import { useContext } from \"react\";\n\nimport { StackContext } from \"./StackProvider\";\n\n/**\n * Get overall stack state\n */\nexport const useStack = () => useContext(StackContext);\n", "import type { Stack } from \"@stackflow/core\";\nimport React, { createContext } from \"react\";\n\nimport { useMemoDeep } from \"../utils\";\n\nexport const StackContext = createContext<Stack>(null as any);\n\ninterface StackProviderProps {\n  children: React.ReactNode;\n  value: Stack;\n}\nexport const StackProvider: React.FC<StackProviderProps> = ({\n  children,\n  value,\n}) => (\n  <StackContext.Provider value={useMemoDeep(value)}>\n    {children}\n  </StackContext.Provider>\n);\n\nStackProvider.displayName = \"StackProvider\";\n", "import type {\n  ActivityRegisteredEvent,\n  CoreStore,\n  PushedEvent,\n  StackflowActions,\n  StepPushedEvent,\n} from \"@stackflow/core\";\nimport { makeCoreStore, makeEvent } from \"@stackflow/core\";\nimport React, { useMemo } from \"react\";\n\nimport type { ActivityComponentType } from \"./activity\";\nimport { makeActivityId, makeStepId } from \"./activity\";\nimport type { BaseActivities } from \"./BaseActivities\";\nimport { CoreProvider } from \"./core\";\nimport MainRenderer from \"./MainRenderer\";\nimport { PluginsProvider } from \"./plugins\";\nimport type { StackflowReactPlugin } from \"./StackflowReactPlugin\";\nimport type { UseActionsOutputType } from \"./useActions\";\nimport { useActions } from \"./useActions\";\nimport type {\n  UseStepActions,\n  UseStepActionsOutputType,\n} from \"./useStepActions\";\nimport { useStepActions } from \"./useStepActions\";\nimport { makeRef } from \"./utils\";\n\nconst isBrowser = typeof window !== \"undefined\";\n\nfunction parseActionOptions(options?: { animate?: boolean }) {\n  if (!options) {\n    return { skipActiveState: false };\n  }\n\n  const isNullableAnimateOption =\n    options.animate === undefined || options.animate == null;\n  if (isNullableAnimateOption) {\n    return { skipActiveState: false };\n  }\n\n  return { skipActiveState: !options.animate };\n}\n\nexport type StackComponentType = React.FC<{\n  initialContext?: any;\n}>;\n\ntype StackflowPluginsEntry<T extends BaseActivities> =\n  | StackflowReactPlugin<T>\n  | StackflowPluginsEntry<T>[];\n\nexport type StackflowOptions<T extends BaseActivities> = {\n  /**\n   * Register activities used in your app\n   */\n  activities: T;\n\n  /**\n   * Transition duration for stack animation (millisecond)\n   */\n  transitionDuration: number;\n\n  /**\n   * Set the first activity to load at the bottom\n   * (It can be overwritten by plugin)\n   */\n  initialActivity?: () => Extract<keyof T, string>;\n\n  /**\n   * Inject stackflow plugins\n   */\n  plugins?: Array<StackflowPluginsEntry<T>>;\n};\n\nexport type StackflowOutput<T extends BaseActivities> = {\n  /**\n   * Return activities\n   */\n  activities: T;\n\n  /**\n   * Created `<Stack />` component\n   */\n  Stack: StackComponentType;\n\n  /**\n   * Created `useFlow()` hooks\n   */\n  useFlow: () => UseActionsOutputType<T>;\n\n  /**\n   * Created `useStepFlow()` hooks\n   */\n  useStepFlow: UseStepActions<T>;\n\n  /**\n   * Add activity imperatively\n   */\n  addActivity: (options: {\n    name: string;\n    component: ActivityComponentType<any>;\n    paramsSchema?: ActivityRegisteredEvent[\"activityParamsSchema\"];\n  }) => void;\n\n  /**\n   * Add plugin imperatively\n   */\n  addPlugin: (plugin: StackflowPluginsEntry<T>) => void;\n\n  /**\n   * Created action triggers\n   */\n  actions: Pick<StackflowActions, \"dispatchEvent\" | \"getStack\"> &\n    Pick<UseActionsOutputType<T>, \"push\" | \"pop\" | \"replace\"> &\n    Pick<UseStepActionsOutputType<{}>, \"stepPush\" | \"stepReplace\" | \"stepPop\">;\n};\n\n/**\n * Make `<Stack />` component and `useFlow()` hooks that strictly typed with `activities`\n */\nexport function stackflow<T extends BaseActivities>(\n  options: StackflowOptions<T>,\n): StackflowOutput<T> {\n  if (typeof window !== \"undefined\") {\n    const html = window.document.documentElement;\n\n    // <html style=\"--stackflow-transition-duration:350ms;\">\n    html.style.setProperty(\n      \"--stackflow-transition-duration\",\n      `${options.transitionDuration}ms`,\n    );\n  }\n\n  const plugins = (options.plugins ?? [])\n    .flat(Infinity as 0)\n    .map((p) => p as StackflowReactPlugin<T>);\n  const pluginInstances = plugins.map((plugin) => plugin());\n\n  const activityComponentMap = Object.entries(options.activities).reduce(\n    (acc, [key, Activity]) => ({\n      ...acc,\n      [key]:\n        \"component\" in Activity\n          ? React.memo(Activity.component)\n          : React.memo(Activity),\n    }),\n    {} as {\n      [key: string]: ActivityComponentType;\n    },\n  );\n\n  const enoughPastTime = () =>\n    new Date().getTime() - options.transitionDuration * 2;\n\n  const staticCoreStore = makeCoreStore({\n    initialEvents: [\n      makeEvent(\"Initialized\", {\n        transitionDuration: options.transitionDuration,\n        eventDate: enoughPastTime(),\n      }),\n      ...Object.entries(options.activities).map(([activityName, Activity]) =>\n        makeEvent(\"ActivityRegistered\", {\n          activityName,\n          eventDate: enoughPastTime(),\n          ...(\"component\" in Activity\n            ? {\n                activityParamsSchema: Activity.paramsSchema,\n              }\n            : null),\n        }),\n      ),\n    ],\n    plugins: [],\n  });\n\n  const [getCoreStore, setCoreStore] = makeRef<CoreStore>();\n\n  const Stack: StackComponentType = React.memo((props) => {\n    const coreStore = useMemo(() => {\n      const prevCoreStore = getCoreStore();\n\n      // In a browser environment,\n      // memoize `coreStore` so that only one `coreStore` exists throughout the entire app.\n      if (isBrowser && prevCoreStore) {\n        return prevCoreStore;\n      }\n\n      const initialPushedEventsByOption = options.initialActivity\n        ? [\n            makeEvent(\"Pushed\", {\n              activityId: makeActivityId(),\n              activityName: options.initialActivity(),\n              activityParams: {},\n              eventDate: enoughPastTime(),\n              skipEnterActiveState: false,\n            }),\n          ]\n        : [];\n\n      const initialPushedEvents = pluginInstances.reduce<\n        (PushedEvent | StepPushedEvent)[]\n      >(\n        (initialEvents, pluginInstance) =>\n          pluginInstance.overrideInitialEvents?.({\n            initialEvents,\n            initialContext: props.initialContext ?? {},\n          }) ?? initialEvents,\n        initialPushedEventsByOption,\n      );\n\n      const isInitialActivityIgnored =\n        initialPushedEvents.length > 0 &&\n        initialPushedEventsByOption.length > 0 &&\n        initialPushedEvents !== initialPushedEventsByOption;\n\n      if (isInitialActivityIgnored) {\n        // eslint-disable-next-line no-console\n        console.warn(\n          `Stackflow -` +\n            ` Some plugin overrides an \"initialActivity\" option.` +\n            ` The \"initialActivity\" option you set to \"${initialPushedEventsByOption[0].activityName}\" in the \"stackflow\" is ignored.`,\n        );\n      }\n\n      if (initialPushedEvents.length === 0) {\n        // eslint-disable-next-line no-console\n        console.warn(\n          `Stackflow -` +\n            ` There is no initial activity.` +\n            \" If you want to set the initial activity,\" +\n            \" add the `initialActivity` option of the `stackflow()` function or\" +\n            \" add a plugin that sets the initial activity. (e.g. `@stackflow/plugin-history-sync`)\",\n        );\n      }\n\n      const store = makeCoreStore({\n        initialEvents: [\n          ...staticCoreStore.pullEvents(),\n          ...initialPushedEvents,\n        ],\n        plugins,\n      });\n\n      if (isBrowser) {\n        store.init();\n        setCoreStore(store);\n      }\n\n      return store;\n    }, []);\n\n    return (\n      <PluginsProvider value={pluginInstances}>\n        <CoreProvider coreStore={coreStore}>\n          <MainRenderer activityComponentMap={activityComponentMap} />\n        </CoreProvider>\n      </PluginsProvider>\n    );\n  });\n\n  Stack.displayName = \"Stack\";\n\n  return {\n    activities: options.activities,\n    Stack,\n    useFlow: useActions,\n    useStepFlow: useStepActions,\n    addActivity(activity) {\n      if (getCoreStore()) {\n        // eslint-disable-next-line no-console\n        console.warn(\n          `Stackflow -` +\n            \" `addActivity()` API cannot be called after a `<Stack />` component has been rendered\",\n        );\n\n        return;\n      }\n\n      activityComponentMap[activity.name] = React.memo(activity.component);\n\n      staticCoreStore.actions.dispatchEvent(\"ActivityRegistered\", {\n        activityName: activity.name,\n        activityParamsSchema: activity.paramsSchema,\n        eventDate: enoughPastTime(),\n      });\n    },\n    addPlugin(plugin) {\n      if (getCoreStore()) {\n        // eslint-disable-next-line no-console\n        console.warn(\n          `Stackflow -` +\n            \" `addPlugin()` API cannot be called after a `<Stack />` component has been rendered\",\n        );\n\n        return;\n      }\n\n      [plugin]\n        .flat(Infinity as 0)\n        .map((p) => p as StackflowReactPlugin<T>)\n        .forEach((p) => {\n          plugins.push(p);\n          pluginInstances.push(p());\n        });\n    },\n    actions: {\n      getStack() {\n        return (\n          getCoreStore()?.actions.getStack() ??\n          staticCoreStore.actions.getStack()\n        );\n      },\n      dispatchEvent(name, parameters) {\n        return getCoreStore()?.actions.dispatchEvent(name, parameters);\n      },\n      push(activityName, activityParams, options) {\n        const activityId = makeActivityId();\n\n        getCoreStore()?.actions.push({\n          activityId,\n          activityName,\n          activityParams,\n          skipEnterActiveState: parseActionOptions(options).skipActiveState,\n        });\n\n        return {\n          activityId,\n        };\n      },\n      replace(activityName, activityParams, options) {\n        const activityId = options?.activityId ?? makeActivityId();\n\n        getCoreStore()?.actions.replace({\n          activityId: options?.activityId ?? makeActivityId(),\n          activityName,\n          activityParams,\n          skipEnterActiveState: parseActionOptions(options).skipActiveState,\n        });\n\n        return {\n          activityId,\n        };\n      },\n      pop(options) {\n        return getCoreStore()?.actions.pop({\n          skipExitActiveState: parseActionOptions(options).skipActiveState,\n        });\n      },\n      stepPush(params) {\n        const stepId = makeStepId();\n\n        return getCoreStore()?.actions.stepPush({\n          stepId,\n          stepParams: params,\n        });\n      },\n      stepReplace(params) {\n        const stepId = makeStepId();\n\n        return getCoreStore()?.actions.stepReplace({\n          stepId,\n          stepParams: params,\n        });\n      },\n      stepPop() {\n        return getCoreStore()?.actions.stepPop({});\n      },\n    },\n  };\n}\n", "import { id } from \"@stackflow/core\";\n\nexport function makeActivityId() {\n  return id();\n}\n", "import { id } from \"@stackflow/core\";\n\nexport function makeStepId() {\n  return id();\n}\n", "import type { CoreStore, Stack } from \"@stackflow/core\";\nimport React, { createContext } from \"react\";\n\nimport { useDeferredValue, useSyncExternalStore } from \"../shims\";\n\nexport const CoreActionsContext = createContext<CoreStore[\"actions\"]>(\n  null as any,\n);\nexport const CoreStateContext = createContext<Stack>(null as any);\n\nexport interface CoreProviderProps {\n  coreStore: CoreStore;\n  children: React.ReactNode;\n}\nexport const CoreProvider: React.FC<CoreProviderProps> = ({\n  coreStore,\n  children,\n}) => {\n  const stack = useSyncExternalStore(\n    coreStore.subscribe,\n    coreStore.actions.getStack,\n    coreStore.actions.getStack,\n  );\n\n  const deferredStack = useDeferredValue(stack);\n\n  return (\n    <CoreStateContext.Provider value={deferredStack}>\n      <CoreActionsContext.Provider value={coreStore.actions}>\n        {children}\n      </CoreActionsContext.Provider>\n    </CoreStateContext.Provider>\n  );\n};\n\nCoreProvider.displayName = \"CoreProvider\";\n", "import React from \"react\";\n\nexport const useDeferredValue: typeof React.useDeferredValue =\n  React.useDeferredValue ?? ((value) => value);\n", "import React, { useEffect, useState } from \"react\";\n\nexport const useSyncExternalStore: typeof React.useSyncExternalStore =\n  React.useSyncExternalStore ??\n  ((subscribe, getSnapshot) => {\n    const [state, setState] = useState(() => getSnapshot());\n\n    useEffect(() => {\n      const dispose = subscribe(() => {\n        setState(() => getSnapshot());\n      });\n\n      return dispose;\n    });\n\n    return state;\n  });\n", "import React from \"react\";\n\nexport const useTransition: typeof React.useTransition =\n  React.useTransition ?? (() => [false, (cb: () => void) => cb()]);\n", "import React from \"react\";\n\nimport { CoreActionsContext } from \"./CoreProvider\";\n\nexport const useCoreActions = () => React.useContext(CoreActionsContext);\n", "import React from \"react\";\n\nimport { CoreStateContext } from \"./CoreProvider\";\n\nexport const useCoreState = () => React.useContext(CoreStateContext);\n", "import React, { useEffect } from \"react\";\n\nimport type { ActivityComponentType } from \"./activity\";\nimport { useCoreState } from \"./core\";\nimport PluginRenderer from \"./PluginRenderer\";\nimport { usePlugins } from \"./plugins\";\nimport type { WithRequired } from \"./utils\";\n\ninterface MainRendererProps {\n  activityComponentMap: {\n    [key: string]: ActivityComponentType;\n  };\n}\nconst MainRenderer: React.FC<MainRendererProps> = ({\n  activityComponentMap,\n}) => {\n  const coreState = useCoreState();\n  const plugins = usePlugins();\n\n  const renderingPlugins = plugins.filter(\n    (plugin): plugin is WithRequired<typeof plugin, \"render\"> =>\n      !!plugin.render,\n  );\n\n  useEffect(() => {\n    if (renderingPlugins.length === 0) {\n      // eslint-disable-next-line no-console\n      console.warn(\n        `Stackflow -` +\n          ` There is no rendering plugin, so \"<Stack />\" doesn't render anything.` +\n          ` If you want to render some UI, use \"@stackflow/plugin-renderer-basic\"` +\n          ` or add another rendering plugin.`,\n      );\n    }\n  }, [renderingPlugins]);\n\n  let output = (\n    <>\n      {renderingPlugins.map((plugin) => (\n        <PluginRenderer\n          key={plugin.key}\n          activityComponentMap={activityComponentMap}\n          plugin={plugin}\n        />\n      ))}\n    </>\n  );\n\n  plugins.forEach((plugin) => {\n    output =\n      plugin.wrapStack?.({\n        stack: {\n          ...coreState,\n          render() {\n            return output;\n          },\n        },\n      }) ?? output;\n  });\n\n  return output;\n};\n\nMainRenderer.displayName = \"MainRenderer\";\n\nexport default MainRenderer;\n", "import React from \"react\";\n\nimport type { ActivityComponentType } from \"./activity\";\nimport { ActivityProvider } from \"./activity\";\nimport { useCoreState } from \"./core\";\nimport { usePlugins } from \"./plugins\";\nimport { StackProvider } from \"./stack\";\nimport type { StackflowReactPlugin } from \"./StackflowReactPlugin\";\nimport type { WithRequired } from \"./utils\";\n\ninterface PluginRendererProps {\n  activityComponentMap: {\n    [key: string]: ActivityComponentType;\n  };\n  plugin: WithRequired<ReturnType<StackflowReactPlugin>, \"render\">;\n}\nconst PluginRenderer: React.FC<PluginRendererProps> = ({\n  activityComponentMap,\n  plugin,\n}) => {\n  const coreState = useCoreState();\n  const plugins = usePlugins();\n\n  return plugin.render({\n    stack: {\n      ...coreState,\n      render(overrideStack) {\n        const stack = {\n          ...coreState,\n          ...overrideStack,\n        };\n\n        return {\n          activities: stack.activities.map((activity) => ({\n            ...activity,\n            key: activity.id,\n            render(overrideActivity) {\n              const Activity = activityComponentMap[activity.name];\n\n              let output: React.ReactNode = (\n                <Activity params={activity.params} />\n              );\n\n              plugins.forEach((p) => {\n                output =\n                  p.wrapActivity?.({\n                    activity: {\n                      ...activity,\n                      render: () => output,\n                    },\n                  }) ?? output;\n              });\n\n              return (\n                <StackProvider value={stack}>\n                  <ActivityProvider\n                    key={activity.id}\n                    value={{\n                      ...activity,\n                      ...overrideActivity,\n                    }}\n                  >\n                    {output}\n                  </ActivityProvider>\n                </StackProvider>\n              );\n            },\n          })),\n        };\n      },\n    },\n  });\n};\n\nPluginRenderer.displayName = \"PluginRenderer\";\n\nexport default PluginRenderer;\n", "import React, { createContext } from \"react\";\n\nimport type { StackflowReactPlugin } from \"../StackflowReactPlugin\";\n\nexport type PluginsContextValue = Array<ReturnType<StackflowReactPlugin>>;\nexport const PluginsContext = createContext<PluginsContextValue>(null as any);\n\ninterface PluginsProviderProps {\n  children: React.ReactNode;\n  value: PluginsContextValue;\n}\nexport const PluginsProvider: React.FC<PluginsProviderProps> = ({\n  children,\n  value,\n}) => (\n  <PluginsContext.Provider value={value}>{children}</PluginsContext.Provider>\n);\n\nPluginsProvider.displayName = \"PluginsProvider\";\n", "import { useContext } from \"react\";\n\nimport { PluginsContext } from \"./PluginsProvider\";\n\nexport function usePlugins() {\n  return useContext(PluginsContext);\n}\n", "import React, { useMemo } from \"react\";\n\nimport type { ActivityComponentType } from \"./activity\";\nimport { makeActivityId } from \"./activity\";\nimport type { BaseActivities } from \"./BaseActivities\";\nimport { useCoreActions } from \"./core\";\nimport { useTransition } from \"./shims\";\n\nfunction parseActionOptions(options?: { animate?: boolean }) {\n  if (!options) {\n    return { skipActiveState: false };\n  }\n\n  const isNullableAnimateOption =\n    options.animate === undefined || options.animate == null;\n  if (isNullableAnimateOption) {\n    return { skipActiveState: false };\n  }\n\n  return { skipActiveState: !options.animate };\n}\n\nexport type UseActionsOutputType<T extends BaseActivities> = {\n  /**\n   * Is transition pending\n   */\n  pending: boolean;\n\n  /**\n   * Push new activity\n   */\n  push: <K extends Extract<keyof T, string>>(\n    activityName: K,\n    params: T[K] extends\n      | ActivityComponentType<infer U>\n      | { component: ActivityComponentType<infer U> }\n      ? U\n      : {},\n    options?: {\n      animate?: boolean;\n    },\n  ) => {\n    activityId: string;\n  };\n\n  /**\n   * Push new activity in the top and remove current top activity when new activity is activated\n   */\n  replace: <K extends Extract<keyof T, string>>(\n    activityName: K,\n    params: T[K] extends\n      | ActivityComponentType<infer U>\n      | { component: ActivityComponentType<infer U> }\n      ? U\n      : {},\n    options?: {\n      animate?: boolean;\n      activityId?: string;\n    },\n  ) => {\n    activityId: string;\n  };\n\n  /**\n   * Remove top activity\n   */\n  pop: (options?: { animate?: boolean }) => void;\n};\n\nexport function useActions<\n  T extends BaseActivities,\n>(): UseActionsOutputType<T> {\n  const coreActions = useCoreActions();\n  const [pending] = useTransition();\n\n  return useMemo(\n    () => ({\n      pending,\n      push(activityName, activityParams, options) {\n        const activityId = makeActivityId();\n\n        coreActions?.push({\n          activityId,\n          activityName,\n          activityParams,\n          skipEnterActiveState: parseActionOptions(options).skipActiveState,\n        });\n\n        return {\n          activityId,\n        };\n      },\n      replace(activityName, activityParams, options) {\n        const activityId = makeActivityId();\n\n        coreActions?.replace({\n          activityId: options?.activityId ?? makeActivityId(),\n          activityName,\n          activityParams,\n          skipEnterActiveState: parseActionOptions(options).skipActiveState,\n        });\n\n        return {\n          activityId,\n        };\n      },\n      pop(options) {\n        coreActions?.pop({\n          skipExitActiveState: parseActionOptions(options).skipActiveState,\n        });\n      },\n    }),\n    [coreActions?.push, coreActions?.replace, coreActions?.pop, pending],\n  );\n}\n", "import React, { useMemo } from \"react\";\n\nimport type { ActivityComponentType } from \"./activity\";\nimport { makeStepId } from \"./activity\";\nimport type { BaseActivities } from \"./BaseActivities\";\nimport { useCoreActions } from \"./core\";\nimport { useTransition } from \"./shims\";\n\nexport type UseStepActionsOutputType<P> = {\n  pending: boolean;\n  stepPush: (params: P, options?: {}) => void;\n  stepReplace: (params: P, options?: {}) => void;\n  stepPop: (options?: {}) => void;\n};\n\nexport type UseStepActions<T extends BaseActivities = {}> = <\n  K extends Extract<keyof T, string>,\n>(\n  activityName: K,\n) => UseStepActionsOutputType<\n  T[K] extends\n    | ActivityComponentType<infer U>\n    | { component: ActivityComponentType<infer U> }\n    ? U\n    : {}\n>;\n\nexport const useStepActions: UseStepActions = () => {\n  const coreActions = useCoreActions();\n  const [pending] = useTransition();\n\n  return useMemo(\n    () => ({\n      pending,\n      stepPush(params) {\n        const stepId = makeStepId();\n\n        coreActions?.stepPush({\n          stepId,\n          stepParams: params,\n        });\n      },\n      stepReplace(params) {\n        const stepId = makeStepId();\n\n        coreActions?.stepReplace({\n          stepId,\n          stepParams: params,\n        });\n      },\n      stepPop() {\n        coreActions?.stepPop({});\n      },\n    }),\n    [\n      coreActions?.stepPush,\n      coreActions?.stepReplace,\n      coreActions?.stepPop,\n      pending,\n    ],\n  );\n};\n", "import { useEffect } from \"react\";\n\nimport { useActivity } from \"./activity/useActivity\";\n\nconst noop = () => {};\n\nexport const useActiveEffect = (effect: React.EffectCallback) => {\n  const { isActive } = useActivity();\n\n  useEffect(() => {\n    if (isActive) {\n      return effect();\n    }\n\n    return noop;\n  }, [isActive]);\n};\n", "import { useEffect } from \"react\";\n\nimport { useActivity } from \"./activity/useActivity\";\n\nconst noop = () => {};\n\nexport const useEnterDoneEffect = (\n  effect: React.EffectCallback,\n  deps: React.DependencyList = [],\n) => {\n  const { isTop, transitionState } = useActivity();\n\n  useEffect(() => {\n    if (isTop && transitionState === \"enter-done\") {\n      return effect();\n    }\n\n    return noop;\n  }, [isTop, transitionState, ...deps]);\n};\n", "import type { ActivityStep } from \"@stackflow/core\";\nimport { useContext } from \"react\";\n\nimport { ActivityContext } from \"./activity/ActivityProvider\";\n\n/**\n * Get current step\n */\nexport function useStep(): ActivityStep | null {\n  const { steps, id } = useContext(ActivityContext);\n\n  return steps.filter((step) => step.id !== id).at(-1) ?? null;\n}\n"],
+  "mappings": 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+  "names": ["import_react", "import_react", "compare", "React", "import_react", "import_react", "import_react", "React", "import_core", "import_react", "import_core", "import_react", "import_react", "React", "import_react", "_a", "React", "import_react", "_a", "React", "React", "import_react", "React", "import_react", "React", "import_react", "import_react", "import_react", "React", "import_react", "React", "_a", "React", "_a", "import_react", "_a", "import_react", "parseActionOptions", "_a", "React", "options", "import_react", "import_react", "noop", "import_react", "_a", "id"]
 }

dist/index.mjs

@@ -94,3 +94,3 @@ var __defProp = Object.defineProperty;
 import { makeCoreStore, makeEvent } from "@stackflow/core";
-import React13, { useMemo as useMemo3 } from "react";
+import React14, { useMemo as useMemo3 } from "react";
 
@@ -110,3 +110,3 @@ // src/activity/makeActivityId.ts
 // src/core/CoreProvider.tsx
-import React5, { createContext as createContext3 } from "react";
+import React6, { createContext as createContext3 } from "react";
 
@@ -132,2 +132,7 @@ // src/shims/useDeferredValue.ts
 
+// src/shims/useTransition.ts
+import React5 from "react";
+var _a3;
+var useTransition = (_a3 = React5.useTransition) != null ? _a3 : () => [false, (cb) => cb()];
+
 // src/core/CoreProvider.tsx
@@ -148,5 +153,5 @@ var CoreActionsContext = createContext3(
   const deferredStack = useDeferredValue(stack);
-  return /* @__PURE__ */ React5.createElement(CoreStateContext.Provider, {
+  return /* @__PURE__ */ React6.createElement(CoreStateContext.Provider, {
     value: deferredStack
-  }, /* @__PURE__ */ React5.createElement(CoreActionsContext.Provider, {
+  }, /* @__PURE__ */ React6.createElement(CoreActionsContext.Provider, {
     value: coreStore.actions
@@ -158,17 +163,17 @@ }, children));
 // src/core/useCoreActions.ts
-import React6 from "react";
-var useCoreActions = () => React6.useContext(CoreActionsContext);
+import React7 from "react";
+var useCoreActions = () => React7.useContext(CoreActionsContext);
 
 // src/core/useCoreState.ts
-import React7 from "react";
-var useCoreState = () => React7.useContext(CoreStateContext);
+import React8 from "react";
+var useCoreState = () => React8.useContext(CoreStateContext);
 
 // src/MainRenderer.tsx
-import React10, { useEffect as useEffect3 } from "react";
+import React11, { useEffect as useEffect3 } from "react";
 
 // src/PluginRenderer.tsx
-import React9 from "react";
+import React10 from "react";
 
 // src/plugins/PluginsProvider.tsx
-import React8, { createContext as createContext4 } from "react";
+import React9, { createContext as createContext4 } from "react";
 var PluginsContext = createContext4(null);
@@ -178,3 +183,3 @@ var PluginsProvider = ({
   value
-}) => /* @__PURE__ */ React8.createElement(PluginsContext.Provider, {
+}) => /* @__PURE__ */ React9.createElement(PluginsContext.Provider, {
   value
@@ -206,8 +211,8 @@ }, children);
               const Activity = activityComponentMap[activity.name];
-              let output = /* @__PURE__ */ React9.createElement(Activity, {
+              let output = /* @__PURE__ */ React10.createElement(Activity, {
                 params: activity.params
               });
               plugins.forEach((p) => {
-                var _a5, _b;
-                output = (_b = (_a5 = p.wrapActivity) == null ? void 0 : _a5.call(p, {
+                var _a4, _b;
+                output = (_b = (_a4 = p.wrapActivity) == null ? void 0 : _a4.call(p, {
                   activity: __spreadProps(__spreadValues({}, activity), {
@@ -218,5 +223,5 @@ render: () => output
               });
-              return /* @__PURE__ */ React9.createElement(StackProvider, {
+              return /* @__PURE__ */ React10.createElement(StackProvider, {
                 value: stack
-              }, /* @__PURE__ */ React9.createElement(ActivityProvider, {
+              }, /* @__PURE__ */ React10.createElement(ActivityProvider, {
                 key: activity.id,
@@ -251,3 +256,3 @@ value: __spreadValues(__spreadValues({}, activity), overrideActivity)
   }, [renderingPlugins]);
-  let output = /* @__PURE__ */ React10.createElement(React10.Fragment, null, renderingPlugins.map((plugin) => /* @__PURE__ */ React10.createElement(PluginRenderer_default, {
+  let output = /* @__PURE__ */ React11.createElement(React11.Fragment, null, renderingPlugins.map((plugin) => /* @__PURE__ */ React11.createElement(PluginRenderer_default, {
     key: plugin.key,
@@ -258,4 +263,4 @@ activityComponentMap,
   plugins.forEach((plugin) => {
-    var _a5, _b;
-    output = (_b = (_a5 = plugin.wrapStack) == null ? void 0 : _a5.call(plugin, {
+    var _a4, _b;
+    output = (_b = (_a4 = plugin.wrapStack) == null ? void 0 : _a4.call(plugin, {
       stack: __spreadProps(__spreadValues({}, coreState), {
@@ -274,3 +279,3 @@ render() {
 // src/useActions.ts
-import React11, { useMemo } from "react";
+import { useMemo } from "react";
 function parseActionOptions(options) {
@@ -286,4 +291,2 @@ if (!options) {
 }
-var _a3;
-var useTransition = (_a3 = React11.useTransition) != null ? _a3 : () => [false, (cb) => cb()];
 function useActions() {
@@ -308,6 +311,6 @@ const coreActions = useCoreActions();
       replace(activityName, activityParams, options) {
-        var _a5;
+        var _a4;
         const activityId = makeActivityId();
         coreActions == null ? void 0 : coreActions.replace({
-          activityId: (_a5 = options == null ? void 0 : options.activityId) != null ? _a5 : makeActivityId(),
+          activityId: (_a4 = options == null ? void 0 : options.activityId) != null ? _a4 : makeActivityId(),
           activityName,
@@ -332,8 +335,6 @@ activityParams,
 // src/useStepActions.ts
-import React12, { useMemo as useMemo2 } from "react";
-var _a4;
-var useTransition2 = (_a4 = React12.useTransition) != null ? _a4 : () => [false, (cb) => cb()];
+import { useMemo as useMemo2 } from "react";
 var useStepActions = () => {
   const coreActions = useCoreActions();
-  const [pending] = useTransition2();
+  const [pending] = useTransition();
   return useMemo2(
@@ -382,3 +383,3 @@ () => ({
 function stackflow(options) {
-  var _a5;
+  var _a4;
   if (typeof window !== "undefined") {
@@ -391,7 +392,7 @@ const html = window.document.documentElement;
   }
-  const plugins = ((_a5 = options.plugins) != null ? _a5 : []).flat(Infinity).map((p) => p);
+  const plugins = ((_a4 = options.plugins) != null ? _a4 : []).flat(Infinity).map((p) => p);
   const pluginInstances = plugins.map((plugin) => plugin());
   const activityComponentMap = Object.entries(options.activities).reduce(
     (acc, [key, Activity]) => __spreadProps(__spreadValues({}, acc), {
-      [key]: "component" in Activity ? React13.memo(Activity.component) : React13.memo(Activity)
+      [key]: "component" in Activity ? React14.memo(Activity.component) : React14.memo(Activity)
     }),
@@ -419,3 +420,3 @@ {}
   const [getCoreStore, setCoreStore] = makeRef();
-  const Stack = React13.memo((props) => {
+  const Stack = React14.memo((props) => {
     const coreStore = useMemo3(() => {
@@ -437,6 +438,6 @@ const prevCoreStore = getCoreStore();
         (initialEvents, pluginInstance) => {
-          var _a6, _b, _c;
+          var _a5, _b, _c;
           return (_c = (_b = pluginInstance.overrideInitialEvents) == null ? void 0 : _b.call(pluginInstance, {
             initialEvents,
-            initialContext: (_a6 = props.initialContext) != null ? _a6 : {}
+            initialContext: (_a5 = props.initialContext) != null ? _a5 : {}
           })) != null ? _c : initialEvents;
@@ -470,7 +471,7 @@ },
     }, []);
-    return /* @__PURE__ */ React13.createElement(PluginsProvider, {
+    return /* @__PURE__ */ React14.createElement(PluginsProvider, {
       value: pluginInstances
-    }, /* @__PURE__ */ React13.createElement(CoreProvider, {
+    }, /* @__PURE__ */ React14.createElement(CoreProvider, {
       coreStore
-    }, /* @__PURE__ */ React13.createElement(MainRenderer_default, {
+    }, /* @__PURE__ */ React14.createElement(MainRenderer_default, {
       activityComponentMap
@@ -492,3 +493,3 @@ })));
       }
-      activityComponentMap[activity.name] = React13.memo(activity.component);
+      activityComponentMap[activity.name] = React14.memo(activity.component);
       staticCoreStore.actions.dispatchEvent("ActivityRegistered", {
@@ -514,13 +515,13 @@ activityName: activity.name,
       getStack() {
-        var _a6, _b;
-        return (_b = (_a6 = getCoreStore()) == null ? void 0 : _a6.actions.getStack()) != null ? _b : staticCoreStore.actions.getStack();
+        var _a5, _b;
+        return (_b = (_a5 = getCoreStore()) == null ? void 0 : _a5.actions.getStack()) != null ? _b : staticCoreStore.actions.getStack();
       },
       dispatchEvent(name, parameters) {
-        var _a6;
-        return (_a6 = getCoreStore()) == null ? void 0 : _a6.actions.dispatchEvent(name, parameters);
+        var _a5;
+        return (_a5 = getCoreStore()) == null ? void 0 : _a5.actions.dispatchEvent(name, parameters);
       },
       push(activityName, activityParams, options2) {
-        var _a6;
+        var _a5;
         const activityId = makeActivityId();
-        (_a6 = getCoreStore()) == null ? void 0 : _a6.actions.push({
+        (_a5 = getCoreStore()) == null ? void 0 : _a5.actions.push({
           activityId,
@@ -536,4 +537,4 @@ activityName,
       replace(activityName, activityParams, options2) {
-        var _a6, _b, _c;
-        const activityId = (_a6 = options2 == null ? void 0 : options2.activityId) != null ? _a6 : makeActivityId();
+        var _a5, _b, _c;
+        const activityId = (_a5 = options2 == null ? void 0 : options2.activityId) != null ? _a5 : makeActivityId();
         (_c = getCoreStore()) == null ? void 0 : _c.actions.replace({
@@ -550,4 +551,4 @@ activityId: (_b = options2 == null ? void 0 : options2.activityId) != null ? _b : makeActivityId(),
       pop(options2) {
-        var _a6;
-        return (_a6 = getCoreStore()) == null ? void 0 : _a6.actions.pop({
+        var _a5;
+        return (_a5 = getCoreStore()) == null ? void 0 : _a5.actions.pop({
           skipExitActiveState: parseActionOptions2(options2).skipActiveState
@@ -557,5 +558,5 @@ });
       stepPush(params) {
-        var _a6;
+        var _a5;
         const stepId = makeStepId();
-        return (_a6 = getCoreStore()) == null ? void 0 : _a6.actions.stepPush({
+        return (_a5 = getCoreStore()) == null ? void 0 : _a5.actions.stepPush({
           stepId,
@@ -566,5 +567,5 @@ stepParams: params
       stepReplace(params) {
-        var _a6;
+        var _a5;
         const stepId = makeStepId();
-        return (_a6 = getCoreStore()) == null ? void 0 : _a6.actions.stepReplace({
+        return (_a5 = getCoreStore()) == null ? void 0 : _a5.actions.stepReplace({
           stepId,
@@ -575,4 +576,4 @@ stepParams: params
       stepPop() {
-        var _a6;
-        return (_a6 = getCoreStore()) == null ? void 0 : _a6.actions.stepPop({});
+        var _a5;
+        return (_a5 = getCoreStore()) == null ? void 0 : _a5.actions.stepPop({});
       }
@@ -599,2 +600,21 @@ }
 import { useEffect as useEffect5 } from "react";
+var noop2 = () => {
+};
+var useEnterDoneEffect = (effect, deps = []) => {
+  const { isTop, transitionState } = useActivity();
+  useEffect5(() => {
+    if (isTop && transitionState === "enter-done") {
+      return effect();
+    }
+    return noop2;
+  }, [isTop, transitionState, ...deps]);
+};
+
+// src/useStep.ts
+import { useContext as useContext5 } from "react";
+function useStep() {
+  var _a4;
+  const { steps, id: id3 } = useContext5(ActivityContext);
+  return (_a4 = steps.filter((step) => step.id !== id3).at(-1)) != null ? _a4 : null;
+}
 export {
@@ -606,5 +626,7 @@ stackflow,
   useActivityParams,
+  useEnterDoneEffect,
   useStack,
+  useStep,
   useStepActions
 };
 //# sourceMappingURL=index.mjs.map

dist/index.mjs.map

 {
   "version": 3,
-  "sources": ["../src/activity/useActivity.ts", "../src/activity/ActivityProvider.tsx", "../src/utils/makeRef.ts", "../src/utils/useMemoDeep.ts", "../src/activity/useActivityParams.ts", "../src/stack/useStack.ts", "../src/stack/StackProvider.tsx", "../src/stackflow.tsx", "../src/activity/makeActivityId.ts", "../src/activity/makeStepId.ts", "../src/core/CoreProvider.tsx", "../src/shims/useDeferredValue.ts", "../src/shims/useSyncExternalStore.ts", "../src/core/useCoreActions.ts", "../src/core/useCoreState.ts", "../src/MainRenderer.tsx", "../src/PluginRenderer.tsx", "../src/plugins/PluginsProvider.tsx", "../src/plugins/usePlugins.ts", "../src/useActions.ts", "../src/useStepActions.ts", "../src/useActiveEffect.ts", "../src/useEnterDoneEffect.ts"],
-  "sourcesContent": ["import { useContext } from \"react\";\n\nimport { ActivityContext } from \"./ActivityProvider\";\n\n/**\n * Get current activity state\n */\nexport const useActivity = () => useContext(ActivityContext);\n", "import type { Activity } from \"@stackflow/core\";\nimport React, { createContext } from \"react\";\n\nimport { useMemoDeep } from \"../utils\";\n\nexport const ActivityContext = createContext<Activity>(null as any);\n\ninterface ActivityProviderProps {\n  children: React.ReactNode;\n  value: Activity;\n}\nexport const ActivityProvider: React.FC<ActivityProviderProps> = ({\n  children,\n  value,\n}) => (\n  <ActivityContext.Provider value={useMemoDeep(value)}>\n    {children}\n  </ActivityContext.Provider>\n);\n\nActivityProvider.displayName = \"ActivityProvider\";\n", "export function makeRef<T>(): [() => T | null, (value: T) => void] {\n  const ref: {\n    value: T | null;\n  } = {\n    value: null,\n  };\n  function get() {\n    return ref.value;\n  }\n  function set(value: T) {\n    ref.value = value;\n  }\n\n  return [get, set];\n}\n", "import { useEffect, useRef } from \"react\";\nimport compare from \"react-fast-compare\";\n\nexport function useMemoDeep<T>(next: T) {\n  const previousRef = useRef(next);\n  const previous = previousRef.current;\n  const isEqual = compare(previous, next);\n\n  useEffect(() => {\n    if (!isEqual) {\n      previousRef.current = next;\n    }\n  });\n\n  return isEqual ? previous : next;\n}\n", "import { useContext } from \"react\";\n\nimport { ActivityContext } from \"./ActivityProvider\";\n\n/**\n * Get current activity parameters\n */\nexport function useActivityParams<\n  T extends { [key in keyof T]: string | undefined },\n>(): T {\n  return useContext(ActivityContext).params as T;\n}\n", "import { useContext } from \"react\";\n\nimport { StackContext } from \"./StackProvider\";\n\n/**\n * Get overall stack state\n */\nexport const useStack = () => useContext(StackContext);\n", "import type { Stack } from \"@stackflow/core\";\nimport React, { createContext } from \"react\";\n\nimport { useMemoDeep } from \"../utils\";\n\nexport const StackContext = createContext<Stack>(null as any);\n\ninterface StackProviderProps {\n  children: React.ReactNode;\n  value: Stack;\n}\nexport const StackProvider: React.FC<StackProviderProps> = ({\n  children,\n  value,\n}) => (\n  <StackContext.Provider value={useMemoDeep(value)}>\n    {children}\n  </StackContext.Provider>\n);\n\nStackProvider.displayName = \"StackProvider\";\n", "import type {\n  ActivityRegisteredEvent,\n  CoreStore,\n  PushedEvent,\n  StackflowActions,\n  StepPushedEvent,\n} from \"@stackflow/core\";\nimport { makeCoreStore, makeEvent } from \"@stackflow/core\";\nimport React, { useMemo } from \"react\";\n\nimport type { ActivityComponentType } from \"./activity\";\nimport { makeActivityId, makeStepId } from \"./activity\";\nimport type { BaseActivities } from \"./BaseActivities\";\nimport { CoreProvider } from \"./core\";\nimport MainRenderer from \"./MainRenderer\";\nimport { PluginsProvider } from \"./plugins\";\nimport type { StackflowReactPlugin } from \"./StackflowReactPlugin\";\nimport type { UseActionsOutputType } from \"./useActions\";\nimport { useActions } from \"./useActions\";\nimport type {\n  UseStepActions,\n  UseStepActionsOutputType,\n} from \"./useStepActions\";\nimport { useStepActions } from \"./useStepActions\";\nimport { makeRef } from \"./utils\";\n\nconst isBrowser = typeof window !== \"undefined\";\n\nfunction parseActionOptions(options?: { animate?: boolean }) {\n  if (!options) {\n    return { skipActiveState: false };\n  }\n\n  const isNullableAnimateOption =\n    options.animate === undefined || options.animate == null;\n  if (isNullableAnimateOption) {\n    return { skipActiveState: false };\n  }\n\n  return { skipActiveState: !options.animate };\n}\n\nexport type StackComponentType = React.FC<{\n  initialContext?: any;\n}>;\n\ntype StackflowPluginsEntry<T extends BaseActivities> =\n  | StackflowReactPlugin<T>\n  | StackflowPluginsEntry<T>[];\n\nexport type StackflowOptions<T extends BaseActivities> = {\n  /**\n   * Register activities used in your app\n   */\n  activities: T;\n\n  /**\n   * Transition duration for stack animation (millisecond)\n   */\n  transitionDuration: number;\n\n  /**\n   * Set the first activity to load at the bottom\n   * (It can be overwritten by plugin)\n   */\n  initialActivity?: () => Extract<keyof T, string>;\n\n  /**\n   * Inject stackflow plugins\n   */\n  plugins?: Array<StackflowPluginsEntry<T>>;\n};\n\nexport type StackflowOutput<T extends BaseActivities> = {\n  /**\n   * Return activities\n   */\n  activities: T;\n\n  /**\n   * Created `<Stack />` component\n   */\n  Stack: StackComponentType;\n\n  /**\n   * Created `useFlow()` hooks\n   */\n  useFlow: () => UseActionsOutputType<T>;\n\n  /**\n   * Created `useStepFlow()` hooks\n   */\n  useStepFlow: UseStepActions<T>;\n\n  /**\n   * Add activity imperatively\n   */\n  addActivity: (options: {\n    name: string;\n    component: ActivityComponentType<any>;\n    paramsSchema?: ActivityRegisteredEvent[\"activityParamsSchema\"];\n  }) => void;\n\n  /**\n   * Add plugin imperatively\n   */\n  addPlugin: (plugin: StackflowPluginsEntry<T>) => void;\n\n  /**\n   * Created action triggers\n   */\n  actions: Pick<StackflowActions, \"dispatchEvent\" | \"getStack\"> &\n    Pick<UseActionsOutputType<T>, \"push\" | \"pop\" | \"replace\"> &\n    Pick<UseStepActionsOutputType<{}>, \"stepPush\" | \"stepReplace\" | \"stepPop\">;\n};\n\n/**\n * Make `<Stack />` component and `useFlow()` hooks that strictly typed with `activities`\n */\nexport function stackflow<T extends BaseActivities>(\n  options: StackflowOptions<T>,\n): StackflowOutput<T> {\n  if (typeof window !== \"undefined\") {\n    const html = window.document.documentElement;\n\n    // <html style=\"--stackflow-transition-duration:350ms;\">\n    html.style.setProperty(\n      \"--stackflow-transition-duration\",\n      `${options.transitionDuration}ms`,\n    );\n  }\n\n  const plugins = (options.plugins ?? [])\n    .flat(Infinity as 0)\n    .map((p) => p as StackflowReactPlugin<T>);\n  const pluginInstances = plugins.map((plugin) => plugin());\n\n  const activityComponentMap = Object.entries(options.activities).reduce(\n    (acc, [key, Activity]) => ({\n      ...acc,\n      [key]:\n        \"component\" in Activity\n          ? React.memo(Activity.component)\n          : React.memo(Activity),\n    }),\n    {} as {\n      [key: string]: ActivityComponentType;\n    },\n  );\n\n  const enoughPastTime = () =>\n    new Date().getTime() - options.transitionDuration * 2;\n\n  const staticCoreStore = makeCoreStore({\n    initialEvents: [\n      makeEvent(\"Initialized\", {\n        transitionDuration: options.transitionDuration,\n        eventDate: enoughPastTime(),\n      }),\n      ...Object.entries(options.activities).map(([activityName, Activity]) =>\n        makeEvent(\"ActivityRegistered\", {\n          activityName,\n          eventDate: enoughPastTime(),\n          ...(\"component\" in Activity\n            ? {\n                activityParamsSchema: Activity.paramsSchema,\n              }\n            : null),\n        }),\n      ),\n    ],\n    plugins: [],\n  });\n\n  const [getCoreStore, setCoreStore] = makeRef<CoreStore>();\n\n  const Stack: StackComponentType = React.memo((props) => {\n    const coreStore = useMemo(() => {\n      const prevCoreStore = getCoreStore();\n\n      // In a browser environment,\n      // memoize `coreStore` so that only one `coreStore` exists throughout the entire app.\n      if (isBrowser && prevCoreStore) {\n        return prevCoreStore;\n      }\n\n      const initialPushedEventsByOption = options.initialActivity\n        ? [\n            makeEvent(\"Pushed\", {\n              activityId: makeActivityId(),\n              activityName: options.initialActivity(),\n              activityParams: {},\n              eventDate: enoughPastTime(),\n              skipEnterActiveState: false,\n            }),\n          ]\n        : [];\n\n      const initialPushedEvents = pluginInstances.reduce<\n        (PushedEvent | StepPushedEvent)[]\n      >(\n        (initialEvents, pluginInstance) =>\n          pluginInstance.overrideInitialEvents?.({\n            initialEvents,\n            initialContext: props.initialContext ?? {},\n          }) ?? initialEvents,\n        initialPushedEventsByOption,\n      );\n\n      const isInitialActivityIgnored =\n        initialPushedEvents.length > 0 &&\n        initialPushedEventsByOption.length > 0 &&\n        initialPushedEvents !== initialPushedEventsByOption;\n\n      if (isInitialActivityIgnored) {\n        // eslint-disable-next-line no-console\n        console.warn(\n          `Stackflow -` +\n            ` Some plugin overrides an \"initialActivity\" option.` +\n            ` The \"initialActivity\" option you set to \"${initialPushedEventsByOption[0].activityName}\" in the \"stackflow\" is ignored.`,\n        );\n      }\n\n      if (initialPushedEvents.length === 0) {\n        // eslint-disable-next-line no-console\n        console.warn(\n          `Stackflow -` +\n            ` There is no initial activity.` +\n            \" If you want to set the initial activity,\" +\n            \" add the `initialActivity` option of the `stackflow()` function or\" +\n            \" add a plugin that sets the initial activity. (e.g. `@stackflow/plugin-history-sync`)\",\n        );\n      }\n\n      const store = makeCoreStore({\n        initialEvents: [\n          ...staticCoreStore.pullEvents(),\n          ...initialPushedEvents,\n        ],\n        plugins,\n      });\n\n      if (isBrowser) {\n        store.init();\n        setCoreStore(store);\n      }\n\n      return store;\n    }, []);\n\n    return (\n      <PluginsProvider value={pluginInstances}>\n        <CoreProvider coreStore={coreStore}>\n          <MainRenderer activityComponentMap={activityComponentMap} />\n        </CoreProvider>\n      </PluginsProvider>\n    );\n  });\n\n  Stack.displayName = \"Stack\";\n\n  return {\n    activities: options.activities,\n    Stack,\n    useFlow: useActions,\n    useStepFlow: useStepActions,\n    addActivity(activity) {\n      if (getCoreStore()) {\n        // eslint-disable-next-line no-console\n        console.warn(\n          `Stackflow -` +\n            \" `addActivity()` API cannot be called after a `<Stack />` component has been rendered\",\n        );\n\n        return;\n      }\n\n      activityComponentMap[activity.name] = React.memo(activity.component);\n\n      staticCoreStore.actions.dispatchEvent(\"ActivityRegistered\", {\n        activityName: activity.name,\n        activityParamsSchema: activity.paramsSchema,\n        eventDate: enoughPastTime(),\n      });\n    },\n    addPlugin(plugin) {\n      if (getCoreStore()) {\n        // eslint-disable-next-line no-console\n        console.warn(\n          `Stackflow -` +\n            \" `addPlugin()` API cannot be called after a `<Stack />` component has been rendered\",\n        );\n\n        return;\n      }\n\n      [plugin]\n        .flat(Infinity as 0)\n        .map((p) => p as StackflowReactPlugin<T>)\n        .forEach((p) => {\n          plugins.push(p);\n          pluginInstances.push(p());\n        });\n    },\n    actions: {\n      getStack() {\n        return (\n          getCoreStore()?.actions.getStack() ??\n          staticCoreStore.actions.getStack()\n        );\n      },\n      dispatchEvent(name, parameters) {\n        return getCoreStore()?.actions.dispatchEvent(name, parameters);\n      },\n      push(activityName, activityParams, options) {\n        const activityId = makeActivityId();\n\n        getCoreStore()?.actions.push({\n          activityId,\n          activityName,\n          activityParams,\n          skipEnterActiveState: parseActionOptions(options).skipActiveState,\n        });\n\n        return {\n          activityId,\n        };\n      },\n      replace(activityName, activityParams, options) {\n        const activityId = options?.activityId ?? makeActivityId();\n\n        getCoreStore()?.actions.replace({\n          activityId: options?.activityId ?? makeActivityId(),\n          activityName,\n          activityParams,\n          skipEnterActiveState: parseActionOptions(options).skipActiveState,\n        });\n\n        return {\n          activityId,\n        };\n      },\n      pop(options) {\n        return getCoreStore()?.actions.pop({\n          skipExitActiveState: parseActionOptions(options).skipActiveState,\n        });\n      },\n      stepPush(params) {\n        const stepId = makeStepId();\n\n        return getCoreStore()?.actions.stepPush({\n          stepId,\n          stepParams: params,\n        });\n      },\n      stepReplace(params) {\n        const stepId = makeStepId();\n\n        return getCoreStore()?.actions.stepReplace({\n          stepId,\n          stepParams: params,\n        });\n      },\n      stepPop() {\n        return getCoreStore()?.actions.stepPop({});\n      },\n    },\n  };\n}\n", "import { id } from \"@stackflow/core\";\n\nexport function makeActivityId() {\n  return id();\n}\n", "import { id } from \"@stackflow/core\";\n\nexport function makeStepId() {\n  return id();\n}\n", "import type { CoreStore, Stack } from \"@stackflow/core\";\nimport React, { createContext } from \"react\";\n\nimport { useDeferredValue, useSyncExternalStore } from \"../shims\";\n\nexport const CoreActionsContext = createContext<CoreStore[\"actions\"]>(\n  null as any,\n);\nexport const CoreStateContext = createContext<Stack>(null as any);\n\nexport interface CoreProviderProps {\n  coreStore: CoreStore;\n  children: React.ReactNode;\n}\nexport const CoreProvider: React.FC<CoreProviderProps> = ({\n  coreStore,\n  children,\n}) => {\n  const stack = useSyncExternalStore(\n    coreStore.subscribe,\n    coreStore.actions.getStack,\n    coreStore.actions.getStack,\n  );\n\n  const deferredStack = useDeferredValue(stack);\n\n  return (\n    <CoreStateContext.Provider value={deferredStack}>\n      <CoreActionsContext.Provider value={coreStore.actions}>\n        {children}\n      </CoreActionsContext.Provider>\n    </CoreStateContext.Provider>\n  );\n};\n\nCoreProvider.displayName = \"CoreProvider\";\n", "import React from \"react\";\n\nexport const useDeferredValue: typeof React.useDeferredValue =\n  React.useDeferredValue ?? ((value) => value);\n", "import React, { useEffect, useState } from \"react\";\n\nexport const useSyncExternalStore: typeof React.useSyncExternalStore =\n  React.useSyncExternalStore ??\n  ((subscribe, getSnapshot) => {\n    const [state, setState] = useState(() => getSnapshot());\n\n    useEffect(() => {\n      const dispose = subscribe(() => {\n        setState(() => getSnapshot());\n      });\n\n      return dispose;\n    });\n\n    return state;\n  });\n", "import React from \"react\";\n\nimport { CoreActionsContext } from \"./CoreProvider\";\n\nexport const useCoreActions = () => React.useContext(CoreActionsContext);\n", "import React from \"react\";\n\nimport { CoreStateContext } from \"./CoreProvider\";\n\nexport const useCoreState = () => React.useContext(CoreStateContext);\n", "import React, { useEffect } from \"react\";\n\nimport type { ActivityComponentType } from \"./activity\";\nimport { useCoreState } from \"./core\";\nimport PluginRenderer from \"./PluginRenderer\";\nimport { usePlugins } from \"./plugins\";\nimport type { WithRequired } from \"./utils\";\n\ninterface MainRendererProps {\n  activityComponentMap: {\n    [key: string]: ActivityComponentType;\n  };\n}\nconst MainRenderer: React.FC<MainRendererProps> = ({\n  activityComponentMap,\n}) => {\n  const coreState = useCoreState();\n  const plugins = usePlugins();\n\n  const renderingPlugins = plugins.filter(\n    (plugin): plugin is WithRequired<typeof plugin, \"render\"> =>\n      !!plugin.render,\n  );\n\n  useEffect(() => {\n    if (renderingPlugins.length === 0) {\n      // eslint-disable-next-line no-console\n      console.warn(\n        `Stackflow -` +\n          ` There is no rendering plugin, so \"<Stack />\" doesn't render anything.` +\n          ` If you want to render some UI, use \"@stackflow/plugin-renderer-basic\"` +\n          ` or add another rendering plugin.`,\n      );\n    }\n  }, [renderingPlugins]);\n\n  let output = (\n    <>\n      {renderingPlugins.map((plugin) => (\n        <PluginRenderer\n          key={plugin.key}\n          activityComponentMap={activityComponentMap}\n          plugin={plugin}\n        />\n      ))}\n    </>\n  );\n\n  plugins.forEach((plugin) => {\n    output =\n      plugin.wrapStack?.({\n        stack: {\n          ...coreState,\n          render() {\n            return output;\n          },\n        },\n      }) ?? output;\n  });\n\n  return output;\n};\n\nMainRenderer.displayName = \"MainRenderer\";\n\nexport default MainRenderer;\n", "import React from \"react\";\n\nimport type { ActivityComponentType } from \"./activity\";\nimport { ActivityProvider } from \"./activity\";\nimport { useCoreState } from \"./core\";\nimport { usePlugins } from \"./plugins\";\nimport { StackProvider } from \"./stack\";\nimport type { StackflowReactPlugin } from \"./StackflowReactPlugin\";\nimport type { WithRequired } from \"./utils\";\n\ninterface PluginRendererProps {\n  activityComponentMap: {\n    [key: string]: ActivityComponentType;\n  };\n  plugin: WithRequired<ReturnType<StackflowReactPlugin>, \"render\">;\n}\nconst PluginRenderer: React.FC<PluginRendererProps> = ({\n  activityComponentMap,\n  plugin,\n}) => {\n  const coreState = useCoreState();\n  const plugins = usePlugins();\n\n  return plugin.render({\n    stack: {\n      ...coreState,\n      render(overrideStack) {\n        const stack = {\n          ...coreState,\n          ...overrideStack,\n        };\n\n        return {\n          activities: stack.activities.map((activity) => ({\n            ...activity,\n            key: activity.id,\n            render(overrideActivity) {\n              const Activity = activityComponentMap[activity.name];\n\n              let output: React.ReactNode = (\n                <Activity params={activity.params} />\n              );\n\n              plugins.forEach((p) => {\n                output =\n                  p.wrapActivity?.({\n                    activity: {\n                      ...activity,\n                      render: () => output,\n                    },\n                  }) ?? output;\n              });\n\n              return (\n                <StackProvider value={stack}>\n                  <ActivityProvider\n                    key={activity.id}\n                    value={{\n                      ...activity,\n                      ...overrideActivity,\n                    }}\n                  >\n                    {output}\n                  </ActivityProvider>\n                </StackProvider>\n              );\n            },\n          })),\n        };\n      },\n    },\n  });\n};\n\nPluginRenderer.displayName = \"PluginRenderer\";\n\nexport default PluginRenderer;\n", "import React, { createContext } from \"react\";\n\nimport type { StackflowReactPlugin } from \"../StackflowReactPlugin\";\n\nexport type PluginsContextValue = Array<ReturnType<StackflowReactPlugin>>;\nexport const PluginsContext = createContext<PluginsContextValue>(null as any);\n\ninterface PluginsProviderProps {\n  children: React.ReactNode;\n  value: PluginsContextValue;\n}\nexport const PluginsProvider: React.FC<PluginsProviderProps> = ({\n  children,\n  value,\n}) => (\n  <PluginsContext.Provider value={value}>{children}</PluginsContext.Provider>\n);\n\nPluginsProvider.displayName = \"PluginsProvider\";\n", "import { useContext } from \"react\";\n\nimport { PluginsContext } from \"./PluginsProvider\";\n\nexport function usePlugins() {\n  return useContext(PluginsContext);\n}\n", "import React, { useMemo } from \"react\";\n\nimport type { ActivityComponentType } from \"./activity\";\nimport { makeActivityId } from \"./activity\";\nimport type { BaseActivities } from \"./BaseActivities\";\nimport { useCoreActions } from \"./core\";\n\nfunction parseActionOptions(options?: { animate?: boolean }) {\n  if (!options) {\n    return { skipActiveState: false };\n  }\n\n  const isNullableAnimateOption =\n    options.animate === undefined || options.animate == null;\n  if (isNullableAnimateOption) {\n    return { skipActiveState: false };\n  }\n\n  return { skipActiveState: !options.animate };\n}\n\nexport type UseActionsOutputType<T extends BaseActivities> = {\n  /**\n   * Is transition pending\n   */\n  pending: boolean;\n\n  /**\n   * Push new activity\n   */\n  push: <K extends Extract<keyof T, string>>(\n    activityName: K,\n    params: T[K] extends\n      | ActivityComponentType<infer U>\n      | { component: ActivityComponentType<infer U> }\n      ? U\n      : {},\n    options?: {\n      animate?: boolean;\n    },\n  ) => {\n    activityId: string;\n  };\n\n  /**\n   * Push new activity in the top and remove current top activity when new activity is activated\n   */\n  replace: <K extends Extract<keyof T, string>>(\n    activityName: K,\n    params: T[K] extends\n      | ActivityComponentType<infer U>\n      | { component: ActivityComponentType<infer U> }\n      ? U\n      : {},\n    options?: {\n      animate?: boolean;\n      activityId?: string;\n    },\n  ) => {\n    activityId: string;\n  };\n\n  /**\n   * Remove top activity\n   */\n  pop: (options?: { animate?: boolean }) => void;\n};\n\nconst useTransition: () => [boolean, React.TransitionStartFunction] =\n  React.useTransition ?? (() => [false, (cb: () => void) => cb()]);\n\nexport function useActions<\n  T extends BaseActivities,\n>(): UseActionsOutputType<T> {\n  const coreActions = useCoreActions();\n  const [pending] = useTransition();\n\n  return useMemo(\n    () => ({\n      pending,\n      push(activityName, activityParams, options) {\n        const activityId = makeActivityId();\n\n        coreActions?.push({\n          activityId,\n          activityName,\n          activityParams,\n          skipEnterActiveState: parseActionOptions(options).skipActiveState,\n        });\n\n        return {\n          activityId,\n        };\n      },\n      replace(activityName, activityParams, options) {\n        const activityId = makeActivityId();\n\n        coreActions?.replace({\n          activityId: options?.activityId ?? makeActivityId(),\n          activityName,\n          activityParams,\n          skipEnterActiveState: parseActionOptions(options).skipActiveState,\n        });\n\n        return {\n          activityId,\n        };\n      },\n      pop(options) {\n        coreActions?.pop({\n          skipExitActiveState: parseActionOptions(options).skipActiveState,\n        });\n      },\n    }),\n    [coreActions?.push, coreActions?.replace, coreActions?.pop, pending],\n  );\n}\n", "import React, { useMemo } from \"react\";\n\nimport type { ActivityComponentType } from \"./activity\";\nimport { makeStepId } from \"./activity\";\nimport type { BaseActivities } from \"./BaseActivities\";\nimport { useCoreActions } from \"./core\";\n\nexport type UseStepActionsOutputType<P> = {\n  pending: boolean;\n  stepPush: (params: P, options?: {}) => void;\n  stepReplace: (params: P, options?: {}) => void;\n  stepPop: (options?: {}) => void;\n};\n\nexport type UseStepActions<T extends BaseActivities = {}> = <\n  K extends Extract<keyof T, string>,\n>(\n  activityName: K,\n) => UseStepActionsOutputType<\n  T[K] extends\n    | ActivityComponentType<infer U>\n    | { component: ActivityComponentType<infer U> }\n    ? U\n    : {}\n>;\n\nconst useTransition: () => [boolean, React.TransitionStartFunction] =\n  React.useTransition ?? (() => [false, (cb: () => void) => cb()]);\n\nexport const useStepActions: UseStepActions = () => {\n  const coreActions = useCoreActions();\n  const [pending] = useTransition();\n\n  return useMemo(\n    () => ({\n      pending,\n      stepPush(params) {\n        const stepId = makeStepId();\n\n        coreActions?.stepPush({\n          stepId,\n          stepParams: params,\n        });\n      },\n      stepReplace(params) {\n        const stepId = makeStepId();\n\n        coreActions?.stepReplace({\n          stepId,\n          stepParams: params,\n        });\n      },\n      stepPop() {\n        coreActions?.stepPop({});\n      },\n    }),\n    [\n      coreActions?.stepPush,\n      coreActions?.stepReplace,\n      coreActions?.stepPop,\n      pending,\n    ],\n  );\n};\n", "import { useEffect } from \"react\";\n\nimport { useActivity } from \"./activity/useActivity\";\n\nconst noop = () => {};\n\nexport const useActiveEffect = (effect: React.EffectCallback) => {\n  const { isActive } = useActivity();\n\n  useEffect(() => {\n    if (isActive) {\n      return effect();\n    }\n\n    return noop;\n  }, [isActive]);\n};\n", "import { useEffect } from \"react\";\n\nimport { useActivity } from \"./activity/useActivity\";\n\nconst useEnterDoneEffect = (\n  effect: React.EffectCallback,\n  deps: React.DependencyList = [],\n) => {\n  const { isTop, transitionState } = useActivity();\n\n  useEffect(() => {\n    if (isTop && transitionState === \"enter-done\") {\n      return effect();\n    }\n  }, [isTop, transitionState, ...deps]);\n};\n\nexport default useEnterDoneEffect;\n"],
-  "mappings": 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-  "names": ["useContext", "useContext", "useContext", "React", "createContext", "createContext", "React", "useContext", "React", "useMemo", "id", "React", "createContext", "React", "React", "useEffect", "_a", "createContext", "React", "React", "React", "React", "React", "React", "useEffect", "React", "React", "createContext", "useContext", "useContext", "React", "_a", "useEffect", "React", "_a", "React", "_a", "React", "React", "useMemo", "_a", "useTransition", "React", "useMemo", "parseActionOptions", "_a", "React", "useMemo", "options", "useEffect", "useEffect", "useEffect"]
+  "sources": ["../src/activity/useActivity.ts", "../src/activity/ActivityProvider.tsx", "../src/utils/makeRef.ts", "../src/utils/useMemoDeep.ts", "../src/activity/useActivityParams.ts", "../src/stack/useStack.ts", "../src/stack/StackProvider.tsx", "../src/stackflow.tsx", "../src/activity/makeActivityId.ts", "../src/activity/makeStepId.ts", "../src/core/CoreProvider.tsx", "../src/shims/useDeferredValue.ts", "../src/shims/useSyncExternalStore.ts", "../src/shims/useTransition.ts", "../src/core/useCoreActions.ts", "../src/core/useCoreState.ts", "../src/MainRenderer.tsx", "../src/PluginRenderer.tsx", "../src/plugins/PluginsProvider.tsx", "../src/plugins/usePlugins.ts", "../src/useActions.ts", "../src/useStepActions.ts", "../src/useActiveEffect.ts", "../src/useEnterDoneEffect.ts", "../src/useStep.ts"],
+  "sourcesContent": ["import { useContext } from \"react\";\n\nimport { ActivityContext } from \"./ActivityProvider\";\n\n/**\n * Get current activity state\n */\nexport const useActivity = () => useContext(ActivityContext);\n", "import type { Activity } from \"@stackflow/core\";\nimport React, { createContext } from \"react\";\n\nimport { useMemoDeep } from \"../utils\";\n\nexport const ActivityContext = createContext<Activity>(null as any);\n\ninterface ActivityProviderProps {\n  children: React.ReactNode;\n  value: Activity;\n}\nexport const ActivityProvider: React.FC<ActivityProviderProps> = ({\n  children,\n  value,\n}) => (\n  <ActivityContext.Provider value={useMemoDeep(value)}>\n    {children}\n  </ActivityContext.Provider>\n);\n\nActivityProvider.displayName = \"ActivityProvider\";\n", "export function makeRef<T>(): [() => T | null, (value: T) => void] {\n  const ref: {\n    value: T | null;\n  } = {\n    value: null,\n  };\n  function get() {\n    return ref.value;\n  }\n  function set(value: T) {\n    ref.value = value;\n  }\n\n  return [get, set];\n}\n", "import { useEffect, useRef } from \"react\";\nimport compare from \"react-fast-compare\";\n\nexport function useMemoDeep<T>(next: T) {\n  const previousRef = useRef(next);\n  const previous = previousRef.current;\n  const isEqual = compare(previous, next);\n\n  useEffect(() => {\n    if (!isEqual) {\n      previousRef.current = next;\n    }\n  });\n\n  return isEqual ? previous : next;\n}\n", "import { useContext } from \"react\";\n\nimport { ActivityContext } from \"./ActivityProvider\";\n\n/**\n * Get current activity parameters\n */\nexport function useActivityParams<\n  T extends { [key in keyof T]: string | undefined },\n>(): T {\n  return useContext(ActivityContext).params as T;\n}\n", "import { useContext } from \"react\";\n\nimport { StackContext } from \"./StackProvider\";\n\n/**\n * Get overall stack state\n */\nexport const useStack = () => useContext(StackContext);\n", "import type { Stack } from \"@stackflow/core\";\nimport React, { createContext } from \"react\";\n\nimport { useMemoDeep } from \"../utils\";\n\nexport const StackContext = createContext<Stack>(null as any);\n\ninterface StackProviderProps {\n  children: React.ReactNode;\n  value: Stack;\n}\nexport const StackProvider: React.FC<StackProviderProps> = ({\n  children,\n  value,\n}) => (\n  <StackContext.Provider value={useMemoDeep(value)}>\n    {children}\n  </StackContext.Provider>\n);\n\nStackProvider.displayName = \"StackProvider\";\n", "import type {\n  ActivityRegisteredEvent,\n  CoreStore,\n  PushedEvent,\n  StackflowActions,\n  StepPushedEvent,\n} from \"@stackflow/core\";\nimport { makeCoreStore, makeEvent } from \"@stackflow/core\";\nimport React, { useMemo } from \"react\";\n\nimport type { ActivityComponentType } from \"./activity\";\nimport { makeActivityId, makeStepId } from \"./activity\";\nimport type { BaseActivities } from \"./BaseActivities\";\nimport { CoreProvider } from \"./core\";\nimport MainRenderer from \"./MainRenderer\";\nimport { PluginsProvider } from \"./plugins\";\nimport type { StackflowReactPlugin } from \"./StackflowReactPlugin\";\nimport type { UseActionsOutputType } from \"./useActions\";\nimport { useActions } from \"./useActions\";\nimport type {\n  UseStepActions,\n  UseStepActionsOutputType,\n} from \"./useStepActions\";\nimport { useStepActions } from \"./useStepActions\";\nimport { makeRef } from \"./utils\";\n\nconst isBrowser = typeof window !== \"undefined\";\n\nfunction parseActionOptions(options?: { animate?: boolean }) {\n  if (!options) {\n    return { skipActiveState: false };\n  }\n\n  const isNullableAnimateOption =\n    options.animate === undefined || options.animate == null;\n  if (isNullableAnimateOption) {\n    return { skipActiveState: false };\n  }\n\n  return { skipActiveState: !options.animate };\n}\n\nexport type StackComponentType = React.FC<{\n  initialContext?: any;\n}>;\n\ntype StackflowPluginsEntry<T extends BaseActivities> =\n  | StackflowReactPlugin<T>\n  | StackflowPluginsEntry<T>[];\n\nexport type StackflowOptions<T extends BaseActivities> = {\n  /**\n   * Register activities used in your app\n   */\n  activities: T;\n\n  /**\n   * Transition duration for stack animation (millisecond)\n   */\n  transitionDuration: number;\n\n  /**\n   * Set the first activity to load at the bottom\n   * (It can be overwritten by plugin)\n   */\n  initialActivity?: () => Extract<keyof T, string>;\n\n  /**\n   * Inject stackflow plugins\n   */\n  plugins?: Array<StackflowPluginsEntry<T>>;\n};\n\nexport type StackflowOutput<T extends BaseActivities> = {\n  /**\n   * Return activities\n   */\n  activities: T;\n\n  /**\n   * Created `<Stack />` component\n   */\n  Stack: StackComponentType;\n\n  /**\n   * Created `useFlow()` hooks\n   */\n  useFlow: () => UseActionsOutputType<T>;\n\n  /**\n   * Created `useStepFlow()` hooks\n   */\n  useStepFlow: UseStepActions<T>;\n\n  /**\n   * Add activity imperatively\n   */\n  addActivity: (options: {\n    name: string;\n    component: ActivityComponentType<any>;\n    paramsSchema?: ActivityRegisteredEvent[\"activityParamsSchema\"];\n  }) => void;\n\n  /**\n   * Add plugin imperatively\n   */\n  addPlugin: (plugin: StackflowPluginsEntry<T>) => void;\n\n  /**\n   * Created action triggers\n   */\n  actions: Pick<StackflowActions, \"dispatchEvent\" | \"getStack\"> &\n    Pick<UseActionsOutputType<T>, \"push\" | \"pop\" | \"replace\"> &\n    Pick<UseStepActionsOutputType<{}>, \"stepPush\" | \"stepReplace\" | \"stepPop\">;\n};\n\n/**\n * Make `<Stack />` component and `useFlow()` hooks that strictly typed with `activities`\n */\nexport function stackflow<T extends BaseActivities>(\n  options: StackflowOptions<T>,\n): StackflowOutput<T> {\n  if (typeof window !== \"undefined\") {\n    const html = window.document.documentElement;\n\n    // <html style=\"--stackflow-transition-duration:350ms;\">\n    html.style.setProperty(\n      \"--stackflow-transition-duration\",\n      `${options.transitionDuration}ms`,\n    );\n  }\n\n  const plugins = (options.plugins ?? [])\n    .flat(Infinity as 0)\n    .map((p) => p as StackflowReactPlugin<T>);\n  const pluginInstances = plugins.map((plugin) => plugin());\n\n  const activityComponentMap = Object.entries(options.activities).reduce(\n    (acc, [key, Activity]) => ({\n      ...acc,\n      [key]:\n        \"component\" in Activity\n          ? React.memo(Activity.component)\n          : React.memo(Activity),\n    }),\n    {} as {\n      [key: string]: ActivityComponentType;\n    },\n  );\n\n  const enoughPastTime = () =>\n    new Date().getTime() - options.transitionDuration * 2;\n\n  const staticCoreStore = makeCoreStore({\n    initialEvents: [\n      makeEvent(\"Initialized\", {\n        transitionDuration: options.transitionDuration,\n        eventDate: enoughPastTime(),\n      }),\n      ...Object.entries(options.activities).map(([activityName, Activity]) =>\n        makeEvent(\"ActivityRegistered\", {\n          activityName,\n          eventDate: enoughPastTime(),\n          ...(\"component\" in Activity\n            ? {\n                activityParamsSchema: Activity.paramsSchema,\n              }\n            : null),\n        }),\n      ),\n    ],\n    plugins: [],\n  });\n\n  const [getCoreStore, setCoreStore] = makeRef<CoreStore>();\n\n  const Stack: StackComponentType = React.memo((props) => {\n    const coreStore = useMemo(() => {\n      const prevCoreStore = getCoreStore();\n\n      // In a browser environment,\n      // memoize `coreStore` so that only one `coreStore` exists throughout the entire app.\n      if (isBrowser && prevCoreStore) {\n        return prevCoreStore;\n      }\n\n      const initialPushedEventsByOption = options.initialActivity\n        ? [\n            makeEvent(\"Pushed\", {\n              activityId: makeActivityId(),\n              activityName: options.initialActivity(),\n              activityParams: {},\n              eventDate: enoughPastTime(),\n              skipEnterActiveState: false,\n            }),\n          ]\n        : [];\n\n      const initialPushedEvents = pluginInstances.reduce<\n        (PushedEvent | StepPushedEvent)[]\n      >(\n        (initialEvents, pluginInstance) =>\n          pluginInstance.overrideInitialEvents?.({\n            initialEvents,\n            initialContext: props.initialContext ?? {},\n          }) ?? initialEvents,\n        initialPushedEventsByOption,\n      );\n\n      const isInitialActivityIgnored =\n        initialPushedEvents.length > 0 &&\n        initialPushedEventsByOption.length > 0 &&\n        initialPushedEvents !== initialPushedEventsByOption;\n\n      if (isInitialActivityIgnored) {\n        // eslint-disable-next-line no-console\n        console.warn(\n          `Stackflow -` +\n            ` Some plugin overrides an \"initialActivity\" option.` +\n            ` The \"initialActivity\" option you set to \"${initialPushedEventsByOption[0].activityName}\" in the \"stackflow\" is ignored.`,\n        );\n      }\n\n      if (initialPushedEvents.length === 0) {\n        // eslint-disable-next-line no-console\n        console.warn(\n          `Stackflow -` +\n            ` There is no initial activity.` +\n            \" If you want to set the initial activity,\" +\n            \" add the `initialActivity` option of the `stackflow()` function or\" +\n            \" add a plugin that sets the initial activity. (e.g. `@stackflow/plugin-history-sync`)\",\n        );\n      }\n\n      const store = makeCoreStore({\n        initialEvents: [\n          ...staticCoreStore.pullEvents(),\n          ...initialPushedEvents,\n        ],\n        plugins,\n      });\n\n      if (isBrowser) {\n        store.init();\n        setCoreStore(store);\n      }\n\n      return store;\n    }, []);\n\n    return (\n      <PluginsProvider value={pluginInstances}>\n        <CoreProvider coreStore={coreStore}>\n          <MainRenderer activityComponentMap={activityComponentMap} />\n        </CoreProvider>\n      </PluginsProvider>\n    );\n  });\n\n  Stack.displayName = \"Stack\";\n\n  return {\n    activities: options.activities,\n    Stack,\n    useFlow: useActions,\n    useStepFlow: useStepActions,\n    addActivity(activity) {\n      if (getCoreStore()) {\n        // eslint-disable-next-line no-console\n        console.warn(\n          `Stackflow -` +\n            \" `addActivity()` API cannot be called after a `<Stack />` component has been rendered\",\n        );\n\n        return;\n      }\n\n      activityComponentMap[activity.name] = React.memo(activity.component);\n\n      staticCoreStore.actions.dispatchEvent(\"ActivityRegistered\", {\n        activityName: activity.name,\n        activityParamsSchema: activity.paramsSchema,\n        eventDate: enoughPastTime(),\n      });\n    },\n    addPlugin(plugin) {\n      if (getCoreStore()) {\n        // eslint-disable-next-line no-console\n        console.warn(\n          `Stackflow -` +\n            \" `addPlugin()` API cannot be called after a `<Stack />` component has been rendered\",\n        );\n\n        return;\n      }\n\n      [plugin]\n        .flat(Infinity as 0)\n        .map((p) => p as StackflowReactPlugin<T>)\n        .forEach((p) => {\n          plugins.push(p);\n          pluginInstances.push(p());\n        });\n    },\n    actions: {\n      getStack() {\n        return (\n          getCoreStore()?.actions.getStack() ??\n          staticCoreStore.actions.getStack()\n        );\n      },\n      dispatchEvent(name, parameters) {\n        return getCoreStore()?.actions.dispatchEvent(name, parameters);\n      },\n      push(activityName, activityParams, options) {\n        const activityId = makeActivityId();\n\n        getCoreStore()?.actions.push({\n          activityId,\n          activityName,\n          activityParams,\n          skipEnterActiveState: parseActionOptions(options).skipActiveState,\n        });\n\n        return {\n          activityId,\n        };\n      },\n      replace(activityName, activityParams, options) {\n        const activityId = options?.activityId ?? makeActivityId();\n\n        getCoreStore()?.actions.replace({\n          activityId: options?.activityId ?? makeActivityId(),\n          activityName,\n          activityParams,\n          skipEnterActiveState: parseActionOptions(options).skipActiveState,\n        });\n\n        return {\n          activityId,\n        };\n      },\n      pop(options) {\n        return getCoreStore()?.actions.pop({\n          skipExitActiveState: parseActionOptions(options).skipActiveState,\n        });\n      },\n      stepPush(params) {\n        const stepId = makeStepId();\n\n        return getCoreStore()?.actions.stepPush({\n          stepId,\n          stepParams: params,\n        });\n      },\n      stepReplace(params) {\n        const stepId = makeStepId();\n\n        return getCoreStore()?.actions.stepReplace({\n          stepId,\n          stepParams: params,\n        });\n      },\n      stepPop() {\n        return getCoreStore()?.actions.stepPop({});\n      },\n    },\n  };\n}\n", "import { id } from \"@stackflow/core\";\n\nexport function makeActivityId() {\n  return id();\n}\n", "import { id } from \"@stackflow/core\";\n\nexport function makeStepId() {\n  return id();\n}\n", "import type { CoreStore, Stack } from \"@stackflow/core\";\nimport React, { createContext } from \"react\";\n\nimport { useDeferredValue, useSyncExternalStore } from \"../shims\";\n\nexport const CoreActionsContext = createContext<CoreStore[\"actions\"]>(\n  null as any,\n);\nexport const CoreStateContext = createContext<Stack>(null as any);\n\nexport interface CoreProviderProps {\n  coreStore: CoreStore;\n  children: React.ReactNode;\n}\nexport const CoreProvider: React.FC<CoreProviderProps> = ({\n  coreStore,\n  children,\n}) => {\n  const stack = useSyncExternalStore(\n    coreStore.subscribe,\n    coreStore.actions.getStack,\n    coreStore.actions.getStack,\n  );\n\n  const deferredStack = useDeferredValue(stack);\n\n  return (\n    <CoreStateContext.Provider value={deferredStack}>\n      <CoreActionsContext.Provider value={coreStore.actions}>\n        {children}\n      </CoreActionsContext.Provider>\n    </CoreStateContext.Provider>\n  );\n};\n\nCoreProvider.displayName = \"CoreProvider\";\n", "import React from \"react\";\n\nexport const useDeferredValue: typeof React.useDeferredValue =\n  React.useDeferredValue ?? ((value) => value);\n", "import React, { useEffect, useState } from \"react\";\n\nexport const useSyncExternalStore: typeof React.useSyncExternalStore =\n  React.useSyncExternalStore ??\n  ((subscribe, getSnapshot) => {\n    const [state, setState] = useState(() => getSnapshot());\n\n    useEffect(() => {\n      const dispose = subscribe(() => {\n        setState(() => getSnapshot());\n      });\n\n      return dispose;\n    });\n\n    return state;\n  });\n", "import React from \"react\";\n\nexport const useTransition: typeof React.useTransition =\n  React.useTransition ?? (() => [false, (cb: () => void) => cb()]);\n", "import React from \"react\";\n\nimport { CoreActionsContext } from \"./CoreProvider\";\n\nexport const useCoreActions = () => React.useContext(CoreActionsContext);\n", "import React from \"react\";\n\nimport { CoreStateContext } from \"./CoreProvider\";\n\nexport const useCoreState = () => React.useContext(CoreStateContext);\n", "import React, { useEffect } from \"react\";\n\nimport type { ActivityComponentType } from \"./activity\";\nimport { useCoreState } from \"./core\";\nimport PluginRenderer from \"./PluginRenderer\";\nimport { usePlugins } from \"./plugins\";\nimport type { WithRequired } from \"./utils\";\n\ninterface MainRendererProps {\n  activityComponentMap: {\n    [key: string]: ActivityComponentType;\n  };\n}\nconst MainRenderer: React.FC<MainRendererProps> = ({\n  activityComponentMap,\n}) => {\n  const coreState = useCoreState();\n  const plugins = usePlugins();\n\n  const renderingPlugins = plugins.filter(\n    (plugin): plugin is WithRequired<typeof plugin, \"render\"> =>\n      !!plugin.render,\n  );\n\n  useEffect(() => {\n    if (renderingPlugins.length === 0) {\n      // eslint-disable-next-line no-console\n      console.warn(\n        `Stackflow -` +\n          ` There is no rendering plugin, so \"<Stack />\" doesn't render anything.` +\n          ` If you want to render some UI, use \"@stackflow/plugin-renderer-basic\"` +\n          ` or add another rendering plugin.`,\n      );\n    }\n  }, [renderingPlugins]);\n\n  let output = (\n    <>\n      {renderingPlugins.map((plugin) => (\n        <PluginRenderer\n          key={plugin.key}\n          activityComponentMap={activityComponentMap}\n          plugin={plugin}\n        />\n      ))}\n    </>\n  );\n\n  plugins.forEach((plugin) => {\n    output =\n      plugin.wrapStack?.({\n        stack: {\n          ...coreState,\n          render() {\n            return output;\n          },\n        },\n      }) ?? output;\n  });\n\n  return output;\n};\n\nMainRenderer.displayName = \"MainRenderer\";\n\nexport default MainRenderer;\n", "import React from \"react\";\n\nimport type { ActivityComponentType } from \"./activity\";\nimport { ActivityProvider } from \"./activity\";\nimport { useCoreState } from \"./core\";\nimport { usePlugins } from \"./plugins\";\nimport { StackProvider } from \"./stack\";\nimport type { StackflowReactPlugin } from \"./StackflowReactPlugin\";\nimport type { WithRequired } from \"./utils\";\n\ninterface PluginRendererProps {\n  activityComponentMap: {\n    [key: string]: ActivityComponentType;\n  };\n  plugin: WithRequired<ReturnType<StackflowReactPlugin>, \"render\">;\n}\nconst PluginRenderer: React.FC<PluginRendererProps> = ({\n  activityComponentMap,\n  plugin,\n}) => {\n  const coreState = useCoreState();\n  const plugins = usePlugins();\n\n  return plugin.render({\n    stack: {\n      ...coreState,\n      render(overrideStack) {\n        const stack = {\n          ...coreState,\n          ...overrideStack,\n        };\n\n        return {\n          activities: stack.activities.map((activity) => ({\n            ...activity,\n            key: activity.id,\n            render(overrideActivity) {\n              const Activity = activityComponentMap[activity.name];\n\n              let output: React.ReactNode = (\n                <Activity params={activity.params} />\n              );\n\n              plugins.forEach((p) => {\n                output =\n                  p.wrapActivity?.({\n                    activity: {\n                      ...activity,\n                      render: () => output,\n                    },\n                  }) ?? output;\n              });\n\n              return (\n                <StackProvider value={stack}>\n                  <ActivityProvider\n                    key={activity.id}\n                    value={{\n                      ...activity,\n                      ...overrideActivity,\n                    }}\n                  >\n                    {output}\n                  </ActivityProvider>\n                </StackProvider>\n              );\n            },\n          })),\n        };\n      },\n    },\n  });\n};\n\nPluginRenderer.displayName = \"PluginRenderer\";\n\nexport default PluginRenderer;\n", "import React, { createContext } from \"react\";\n\nimport type { StackflowReactPlugin } from \"../StackflowReactPlugin\";\n\nexport type PluginsContextValue = Array<ReturnType<StackflowReactPlugin>>;\nexport const PluginsContext = createContext<PluginsContextValue>(null as any);\n\ninterface PluginsProviderProps {\n  children: React.ReactNode;\n  value: PluginsContextValue;\n}\nexport const PluginsProvider: React.FC<PluginsProviderProps> = ({\n  children,\n  value,\n}) => (\n  <PluginsContext.Provider value={value}>{children}</PluginsContext.Provider>\n);\n\nPluginsProvider.displayName = \"PluginsProvider\";\n", "import { useContext } from \"react\";\n\nimport { PluginsContext } from \"./PluginsProvider\";\n\nexport function usePlugins() {\n  return useContext(PluginsContext);\n}\n", "import React, { useMemo } from \"react\";\n\nimport type { ActivityComponentType } from \"./activity\";\nimport { makeActivityId } from \"./activity\";\nimport type { BaseActivities } from \"./BaseActivities\";\nimport { useCoreActions } from \"./core\";\nimport { useTransition } from \"./shims\";\n\nfunction parseActionOptions(options?: { animate?: boolean }) {\n  if (!options) {\n    return { skipActiveState: false };\n  }\n\n  const isNullableAnimateOption =\n    options.animate === undefined || options.animate == null;\n  if (isNullableAnimateOption) {\n    return { skipActiveState: false };\n  }\n\n  return { skipActiveState: !options.animate };\n}\n\nexport type UseActionsOutputType<T extends BaseActivities> = {\n  /**\n   * Is transition pending\n   */\n  pending: boolean;\n\n  /**\n   * Push new activity\n   */\n  push: <K extends Extract<keyof T, string>>(\n    activityName: K,\n    params: T[K] extends\n      | ActivityComponentType<infer U>\n      | { component: ActivityComponentType<infer U> }\n      ? U\n      : {},\n    options?: {\n      animate?: boolean;\n    },\n  ) => {\n    activityId: string;\n  };\n\n  /**\n   * Push new activity in the top and remove current top activity when new activity is activated\n   */\n  replace: <K extends Extract<keyof T, string>>(\n    activityName: K,\n    params: T[K] extends\n      | ActivityComponentType<infer U>\n      | { component: ActivityComponentType<infer U> }\n      ? U\n      : {},\n    options?: {\n      animate?: boolean;\n      activityId?: string;\n    },\n  ) => {\n    activityId: string;\n  };\n\n  /**\n   * Remove top activity\n   */\n  pop: (options?: { animate?: boolean }) => void;\n};\n\nexport function useActions<\n  T extends BaseActivities,\n>(): UseActionsOutputType<T> {\n  const coreActions = useCoreActions();\n  const [pending] = useTransition();\n\n  return useMemo(\n    () => ({\n      pending,\n      push(activityName, activityParams, options) {\n        const activityId = makeActivityId();\n\n        coreActions?.push({\n          activityId,\n          activityName,\n          activityParams,\n          skipEnterActiveState: parseActionOptions(options).skipActiveState,\n        });\n\n        return {\n          activityId,\n        };\n      },\n      replace(activityName, activityParams, options) {\n        const activityId = makeActivityId();\n\n        coreActions?.replace({\n          activityId: options?.activityId ?? makeActivityId(),\n          activityName,\n          activityParams,\n          skipEnterActiveState: parseActionOptions(options).skipActiveState,\n        });\n\n        return {\n          activityId,\n        };\n      },\n      pop(options) {\n        coreActions?.pop({\n          skipExitActiveState: parseActionOptions(options).skipActiveState,\n        });\n      },\n    }),\n    [coreActions?.push, coreActions?.replace, coreActions?.pop, pending],\n  );\n}\n", "import React, { useMemo } from \"react\";\n\nimport type { ActivityComponentType } from \"./activity\";\nimport { makeStepId } from \"./activity\";\nimport type { BaseActivities } from \"./BaseActivities\";\nimport { useCoreActions } from \"./core\";\nimport { useTransition } from \"./shims\";\n\nexport type UseStepActionsOutputType<P> = {\n  pending: boolean;\n  stepPush: (params: P, options?: {}) => void;\n  stepReplace: (params: P, options?: {}) => void;\n  stepPop: (options?: {}) => void;\n};\n\nexport type UseStepActions<T extends BaseActivities = {}> = <\n  K extends Extract<keyof T, string>,\n>(\n  activityName: K,\n) => UseStepActionsOutputType<\n  T[K] extends\n    | ActivityComponentType<infer U>\n    | { component: ActivityComponentType<infer U> }\n    ? U\n    : {}\n>;\n\nexport const useStepActions: UseStepActions = () => {\n  const coreActions = useCoreActions();\n  const [pending] = useTransition();\n\n  return useMemo(\n    () => ({\n      pending,\n      stepPush(params) {\n        const stepId = makeStepId();\n\n        coreActions?.stepPush({\n          stepId,\n          stepParams: params,\n        });\n      },\n      stepReplace(params) {\n        const stepId = makeStepId();\n\n        coreActions?.stepReplace({\n          stepId,\n          stepParams: params,\n        });\n      },\n      stepPop() {\n        coreActions?.stepPop({});\n      },\n    }),\n    [\n      coreActions?.stepPush,\n      coreActions?.stepReplace,\n      coreActions?.stepPop,\n      pending,\n    ],\n  );\n};\n", "import { useEffect } from \"react\";\n\nimport { useActivity } from \"./activity/useActivity\";\n\nconst noop = () => {};\n\nexport const useActiveEffect = (effect: React.EffectCallback) => {\n  const { isActive } = useActivity();\n\n  useEffect(() => {\n    if (isActive) {\n      return effect();\n    }\n\n    return noop;\n  }, [isActive]);\n};\n", "import { useEffect } from \"react\";\n\nimport { useActivity } from \"./activity/useActivity\";\n\nconst noop = () => {};\n\nexport const useEnterDoneEffect = (\n  effect: React.EffectCallback,\n  deps: React.DependencyList = [],\n) => {\n  const { isTop, transitionState } = useActivity();\n\n  useEffect(() => {\n    if (isTop && transitionState === \"enter-done\") {\n      return effect();\n    }\n\n    return noop;\n  }, [isTop, transitionState, ...deps]);\n};\n", "import type { ActivityStep } from \"@stackflow/core\";\nimport { useContext } from \"react\";\n\nimport { ActivityContext } from \"./activity/ActivityProvider\";\n\n/**\n * Get current step\n */\nexport function useStep(): ActivityStep | null {\n  const { steps, id } = useContext(ActivityContext);\n\n  return steps.filter((step) => step.id !== id).at(-1) ?? null;\n}\n"],
+  "mappings": 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+  "names": ["useContext", "useContext", "useContext", "React", "createContext", "createContext", "React", "useContext", "React", "useMemo", "id", "React", "createContext", "React", "React", "useEffect", "_a", "React", "_a", "createContext", "React", "React", "React", "React", "React", "React", "useEffect", "React", "React", "createContext", "useContext", "useContext", "React", "_a", "useEffect", "React", "_a", "_a", "useMemo", "useMemo", "parseActionOptions", "_a", "React", "useMemo", "options", "useEffect", "useEffect", "useEffect", "noop", "useEffect", "useContext", "_a", "id", "useContext"]
 }

dist/shims/index.d.ts

 export * from "./useDeferredValue";
 export * from "./useSyncExternalStore";
+export * from "./useTransition";

dist/useEnterDoneEffect.d.ts

 /// <reference types="react" />
-declare const useEnterDoneEffect: (effect: React.EffectCallback, deps?: import("react").DependencyList) => void;
-export default useEnterDoneEffect;
+export declare const useEnterDoneEffect: (effect: React.EffectCallback, deps?: import("react").DependencyList) => void;

package.json

 {
   "name": "@stackflow/react",
-  "version": "0.21.2",
+  "version": "0.21.3",
   "license": "MIT",
@@ -64,3 +64,3 @@ "exports": {
   },
-  "gitHead": "be4a7845c2d5a7999cd172733a5690b1d2657b47"
+  "gitHead": "49e9bc061fc8f716489a3acad6d922d0476ee94e"
 }

src/index.ts

@@ -10,2 +10,3 @@ export * from "./activity/ActivityComponentType";
 export * from "./useEnterDoneEffect";
+export * from "./useStep";
 export * from "./useStepActions";

src/shims/index.ts

 export * from "./useDeferredValue";
 export * from "./useSyncExternalStore";
+export * from "./useTransition";

src/useActions.ts

@@ -7,2 +7,3 @@ import React, { useMemo } from "react";
 import { useCoreActions } from "./core";
+import { useTransition } from "./shims";
 
@@ -70,5 +71,2 @@ function parseActionOptions(options?: { animate?: boolean }) {
 
-const useTransition: () => [boolean, React.TransitionStartFunction] =
-  React.useTransition ?? (() => [false, (cb: () => void) => cb()]);
-
 export function useActions<
@@ -75,0 +73,0 @@ T extends BaseActivities,

src/useEnterDoneEffect.ts

@@ -5,3 +5,5 @@ import { useEffect } from "react";
 
-const useEnterDoneEffect = (
+const noop = () => {};
+
+export const useEnterDoneEffect = (
   effect: React.EffectCallback,
@@ -16,5 +18,5 @@ deps: React.DependencyList = [],
     }
+
+    return noop;
   }, [isTop, transitionState, ...deps]);
 };
-
-export default useEnterDoneEffect;

src/useStepActions.ts

@@ -7,2 +7,3 @@ import React, { useMemo } from "react";
 import { useCoreActions } from "./core";
+import { useTransition } from "./shims";
 
@@ -28,5 +29,2 @@ export type UseStepActionsOutputType<P> = {
 
-const useTransition: () => [boolean, React.TransitionStartFunction] =
-  React.useTransition ?? (() => [false, (cb: () => void) => cb()]);
-
 export const useStepActions: UseStepActions = () => {
@@ -33,0 +31,0 @@ const coreActions = useCoreActions();

No alert changes

Improved metrics

Total package byte prevSize

156787

2.18%

Number of package files

79

5.33%

Lines of code

2345

2.72%

No dependency changes