@storybook/core
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Storybook framework-agnostic API
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TypeScript
import React, { ReactNode, FC, Component, ReactElement } from 'react';
import { Channel, Listener as Listener$1 } from '@storybook/core/channels';
export { Listener as ChannelListener } from '@storybook/core/channels';
import { RouterData, NavigateOptions } from '@storybook/core/router';
import { Addon_Types, Addon_TypesEnum, Addon_Collection, Addon_TypesMapping, Addon_BaseType, Addon_SidebarTopType, Addon_SidebarBottomType, Addon_TestProviderType, Addon_PageType, Addon_WrapperType, Addon_Config, API_ProviderData, API_StateMerger, API_Provider, StoryId, Globals, GlobalTypes, API_Layout, API_UI, API_PanelPositions, API_Notification, API_IframeRenderer, API_Refs, API_ComposedRef, API_SetRefData, API_ComposedRefUpdate, API_Settings, API_LoadedRefData, API_PreparedStoryIndex, API_ViewMode, API_StatusState, API_FilterFunction, API_HashEntry, API_LeafEntry, API_StoryEntry, Args, API_IndexHash, API_StatusObject, API_StatusUpdate, API_DocsEntry, API_Versions, API_UnknownEntries, API_Version, API_OptionsData, Parameters, ArgTypes } from '@storybook/core/types';
export { Addon_Type as Addon, API_ComponentEntry as ComponentEntry, API_ComposedRef as ComposedRef, API_DocsEntry as DocsEntry, API_GroupEntry as GroupEntry, API_HashEntry as HashEntry, API_IndexHash as IndexHash, API_LeafEntry as LeafEntry, API_Refs as Refs, API_RootEntry as RootEntry, API_IndexHash as StoriesHash, API_StoryEntry as StoryEntry } from '@storybook/core/types';
import { TestProviders, TestProviderState, TestProviderId, WhatsNewData } from '@storybook/core/core-events';
import { ThemeVars } from '@storybook/core/theming';
import { toId } from '@storybook/core/csf';
declare function mockChannel(): Channel;
declare class AddonStore {
constructor();
private loaders;
private elements;
private config;
private channel;
private promise;
private resolve;
getChannel: () => Channel;
ready: () => Promise<Channel>;
hasChannel: () => boolean;
setChannel: (channel: Channel) => void;
getElements<T extends Addon_Types | Addon_TypesEnum.experimental_PAGE | Addon_TypesEnum.experimental_SIDEBAR_BOTTOM | Addon_TypesEnum.experimental_SIDEBAR_TOP | Addon_TypesEnum.experimental_TEST_PROVIDER>(type: T): Addon_Collection<Addon_TypesMapping[T]> | any;
/**
* Adds an addon to the addon store.
*
* @param {string} id - The id of the addon.
* @param {Addon_Type} addon - The addon to add.
* @returns {void}
*/
add(id: string, addon: Addon_BaseType | Omit<Addon_SidebarTopType, 'id'> | Omit<Addon_SidebarBottomType, 'id'> | Omit<Addon_TestProviderType, 'id'> | Omit<Addon_PageType, 'id'> | Omit<Addon_WrapperType, 'id'>): void;
setConfig: (value: Addon_Config) => void;
getConfig: () => Addon_Config;
/**
* Registers an addon loader function.
*
* @param {string} id - The id of the addon loader.
* @param {(api: API) => void} callback - The function that will be called to register the addon.
* @returns {void}
*/
register: (id: string, callback: (api: API) => void) => void;
loadAddons: (api: any) => void;
experimental_getRegisteredAddons(): string[];
}
declare const addons: AddonStore;
type GetState = () => State;
type SetState = (a: any, b: any) => any;
interface Upstream {
getState: GetState;
setState: SetState;
}
type Patch = Partial<State>;
type InputFnPatch = (s: State) => Patch;
type InputPatch = Patch | InputFnPatch;
interface Options {
persistence: 'none' | 'session' | string;
}
type CallBack = (s: State) => void;
declare class Store {
upstreamGetState: GetState;
upstreamSetState: SetState;
constructor({ setState, getState }: Upstream);
getInitialState(base: State): any;
getState(): State;
setState(inputPatch: InputPatch, options?: Options): Promise<State>;
setState(inputPatch: InputPatch, callback?: CallBack, options?: Options): Promise<State>;
}
type ModuleFn<APIType = unknown, StateType = unknown> = (m: ModuleArgs, options?: any) => {
init?: () => void | Promise<void>;
api: APIType;
state: StateType;
};
type ModuleArgs = RouterData & API_ProviderData<API> & {
mode?: 'production' | 'development';
state: State;
fullAPI: API;
store: Store;
};
interface SubAPI$d {
/**
* Returns a collection of elements of a specific type.
*
* @template T - The type of the elements in the collection.
* @param {Addon_Types | Addon_TypesEnum.experimental_PAGE} type - The type of the elements to
* retrieve.
* @returns {Addon_Collection<T>} - A collection of elements of the specified type.
* @protected This is used internally in storybook's manager.
*/
getElements: <T extends Addon_Types | Addon_TypesEnum.experimental_PAGE | Addon_TypesEnum.experimental_SIDEBAR_BOTTOM | Addon_TypesEnum.experimental_TEST_PROVIDER | Addon_TypesEnum.experimental_SIDEBAR_TOP = Addon_Types>(type: T) => Addon_Collection<Addon_TypesMapping[T]>;
/**
* Returns the id of the currently selected panel.
*
* @returns {string} - The ID of the currently selected panel.
*/
getSelectedPanel: () => string;
/**
* Sets the currently selected panel via it's ID.
*
* @param {string} panelName - The ID of the panel to select.
* @returns {void}
*/
setSelectedPanel: (panelName: string) => void;
/**
* Sets the state of an addon with the given ID.
*
* @deprecated This API might get dropped, if you are using this, please file an issue.
* @template S - The type of the addon state.
* @param {string} addonId - The ID of the addon to set the state for.
* @param {S | API_StateMerger<S>} newStateOrMerger - The new state to set, or a function which
* receives the current state and returns the new state.
* @param {Options} [options] - Optional options for the state update.
* @returns {Promise<S>} - A promise that resolves with the new state after it has been set.
*/
setAddonState<S>(addonId: string, newStateOrMerger: S | API_StateMerger<S>, options?: Options): Promise<S>;
/**
* Returns the state of an addon with the given ID.
*
* @deprecated This API might get dropped, if you are using this, please file an issue.
* @template S - The type of the addon state.
* @param {string} addonId - The ID of the addon to get the state for.
* @returns {S} - The state of the addon with the given ID.
*/
getAddonState<S>(addonId: string): S;
}
interface SubAPI$c {
/**
* Returns the channel object.
*
* @protected Please do not use, it's for internal use only.
*/
getChannel: () => API_Provider<API>['channel'];
/**
* Adds a listener to the channel for the given event type. Returns a function that can be called
* to remove the listener.
*
* @param type - The event type to listen for. If using a core event, import it from
* `@storybook/core-events`.
* @param handler - The callback function to be called when the event is emitted.
* @returns A function that can be called to remove the listener.
*/
on: (type: string, handler: Listener$1) => () => void;
/**
* Removes a listener from the channel for the given event type.
*
* @param type - The event type to remove the listener from. If using a core event, import it from
* `@storybook/core-events`.
* @param handler - The callback function to be removed.
*/
off: (type: string, handler: Listener$1) => void;
/**
* Emits an event on the channel for the given event type.
*
* @param type - The event type to emit. If using a core event, import it from
* `@storybook/core-events`.
* @param args - The arguments to pass to the event listener.
*/
emit: (type: string, ...args: any[]) => void;
/**
* Adds a one-time listener to the channel for the given event type.
*
* @param type - The event type to listen for. If using a core event, import it from
* `@storybook/core-events`.
* @param handler - The callback function to be called when the event is emitted.
*/
once: (type: string, handler: Listener$1) => void;
}
type SubState$a = {
testProviders: TestProviders;
};
interface RunOptions {
entryId?: StoryId;
}
type SubAPI$b = {
getTestProviderState(id: string): TestProviderState | undefined;
updateTestProviderState(id: TestProviderId, update: Partial<TestProviderState>): void;
clearTestProviderState(id: TestProviderId): void;
runTestProvider(id: TestProviderId, options?: RunOptions): () => void;
cancelTestProvider(id: TestProviderId): void;
};
interface SubState$9 {
globals?: Globals;
userGlobals?: Globals;
storyGlobals?: Globals;
globalTypes?: GlobalTypes;
}
interface SubAPI$a {
/**
* Returns the current globals, which is the user globals overlaid with the story globals
*
* @returns {Globals} The current globals.
*/
getGlobals: () => Globals;
/**
* Returns the current globals, as set by the user (a story may have override values)
*
* @returns {Globals} The current user globals.
*/
getUserGlobals: () => Globals /**
* /** Returns the current globals, as set by the story
*
* @returns {Globals} The current story globals.
*/;
getStoryGlobals: () => Globals /**
* Returns the globalTypes, as defined at the project level.
*
* @returns {GlobalTypes} The globalTypes.
*/;
getGlobalTypes: () => GlobalTypes;
/**
* Updates the current globals with the provided new globals.
*
* @param {Globals} newGlobals - The new globals to update with.
* @returns {void}
*/
updateGlobals: (newGlobals: Globals) => void;
}
interface SubState$8 {
layout: API_Layout;
ui: API_UI;
selectedPanel: string | undefined;
theme: ThemeVars;
}
interface SubAPI$9 {
/**
* Toggles the fullscreen mode of the Storybook UI.
*
* @param toggled - Optional boolean value to set the fullscreen mode to. If not provided, it will
* toggle the current state.
*/
toggleFullscreen: (toggled?: boolean) => void;
/**
* Toggles the visibility of the panel in the Storybook UI.
*
* @param toggled - Optional boolean value to set the panel visibility to. If not provided, it
* will toggle the current state.
*/
togglePanel: (toggled?: boolean) => void;
/**
* Toggles the position of the panel in the Storybook UI.
*
* @param position - Optional string value to set the panel position to. If not provided, it will
* toggle between 'bottom' and 'right'.
*/
togglePanelPosition: (position?: API_PanelPositions) => void;
/**
* Toggles the visibility of the navigation bar in the Storybook UI.
*
* @param toggled - Optional boolean value to set the navigation bar visibility to. If not
* provided, it will toggle the current state.
*/
toggleNav: (toggled?: boolean) => void;
/**
* Toggles the visibility of the toolbar in the Storybook UI.
*
* @param toggled - Optional boolean value to set the toolbar visibility to. If not provided, it
* will toggle the current state.
*/
toggleToolbar: (toggled?: boolean) => void;
/**
* Sets the options for the Storybook UI.
*
* @param options - An object containing the options to set.
*/
setOptions: (options: any) => void;
/** Sets the sizes of the resizable elements in the layout. */
setSizes: (options: Partial<Pick<API_Layout, 'navSize' | 'bottomPanelHeight' | 'rightPanelWidth'>>) => void;
/** GetIsFullscreen - Returns the current fullscreen mode of the Storybook UI. */
getIsFullscreen: () => boolean;
/** GetIsPanelShown - Returns the current visibility of the panel in the Storybook UI. */
getIsPanelShown: () => boolean;
/** GetIsNavShown - Returns the current visibility of the navigation bar in the Storybook UI. */
getIsNavShown: () => boolean;
}
interface SubState$7 {
notifications: API_Notification[];
}
/** The API for managing notifications. */
interface SubAPI$8 {
/**
* Adds a new notification to the list of notifications. If a notification with the same ID
* already exists, it will be replaced.
*
* @param notification - The notification to add.
*/
addNotification: (notification: API_Notification) => void;
/**
* Removes a notification from the list of notifications and calls the onClear callback.
*
* @param id - The ID of the notification to remove.
*/
clearNotification: (id: string) => void;
}
interface SubAPI$7 {
renderPreview?: API_IframeRenderer;
}
interface SubState$6 {
refs: API_Refs;
}
interface SubAPI$6 {
/**
* Finds a composed ref by its source.
*
* @param {string} source - The source/URL of the composed ref.
* @returns {API_ComposedRef} - The composed ref object.
*/
findRef: (source: string) => API_ComposedRef;
/**
* Sets a composed ref by its ID and data.
*
* @param {string} id - The ID of the composed ref.
* @param {API_SetRefData} data - The data to set for the composed ref.
* @param {boolean} [ready] - Whether the composed ref is ready.
*/
setRef: (id: string, data: API_SetRefData, ready?: boolean) => void;
/**
* Updates a composed ref by its ID and update object.
*
* @param {string} id - The ID of the composed ref.
* @param {API_ComposedRefUpdate} ref - The update object for the composed ref.
*/
updateRef: (id: string, ref: API_ComposedRefUpdate) => Promise<void>;
/**
* Gets all composed refs.
*
* @returns {API_Refs} - The composed refs object.
*/
getRefs: () => API_Refs;
/**
* Checks if a composed ref is valid.
*
* @param {API_SetRefData} ref - The composed ref to check.
* @returns {Promise<void>} - A promise that resolves when the check is complete.
*/
checkRef: (ref: API_SetRefData) => Promise<void>;
/**
* Changes the version of a composed ref by its ID and URL.
*
* @param {string} id - The ID of the composed ref.
* @param {string} url - The new URL for the composed ref.
*/
changeRefVersion: (id: string, url: string) => Promise<void>;
/**
* Changes the state of a composed ref by its ID and previewInitialized flag.
*
* @param {string} id - The ID of the composed ref.
* @param {boolean} previewInitialized - The new previewInitialized flag for the composed ref.
*/
changeRefState: (id: string, previewInitialized: boolean) => void;
}
interface SubAPI$5 {
storeSelection: () => void;
retrieveSelection: () => StoryId;
/**
* Changes the active settings tab.
*
* @example
*
* ```ts
* changeSettingsTab(`about`);
* ```
*
* @param path - The path of the settings page to navigate to. The path NOT should include the
* `/settings` prefix.
*/
changeSettingsTab: (path: string) => void;
/** Closes the settings screen and returns to the last tracked story or the first story. */
closeSettings: () => void;
/**
* Checks if the settings screen is currently active.
*
* @returns A boolean indicating whether the settings screen is active.
*/
isSettingsScreenActive: () => boolean;
}
interface SubState$5 {
settings: API_Settings;
}
declare const isMacLike: () => boolean;
declare const controlOrMetaSymbol: () => "⌘" | "ctrl";
declare const controlOrMetaKey: () => "control" | "meta";
declare const optionOrAltSymbol: () => "⌥" | "alt";
declare const isShortcutTaken: (arr1: string[], arr2: string[]) => boolean;
type KeyboardEventLike = Pick<KeyboardEvent, 'altKey' | 'ctrlKey' | 'metaKey' | 'shiftKey' | 'key' | 'code' | 'keyCode' | 'preventDefault'>;
declare const eventToShortcut: (e: KeyboardEventLike) => (string | string[])[] | null;
declare const shortcutMatchesShortcut: (inputShortcut: (string | string[])[], shortcut: API_KeyCollection) => boolean;
declare const eventMatchesShortcut: (e: KeyboardEventLike, shortcut: API_KeyCollection) => boolean;
declare const keyToSymbol: (key: string) => string;
declare const shortcutToHumanString: (shortcut: API_KeyCollection) => string;
interface SubState$4 {
shortcuts: API_Shortcuts;
}
interface SubAPI$4 {
/** Returns the current shortcuts. */
getShortcutKeys(): API_Shortcuts;
/** Returns the default shortcuts. */
getDefaultShortcuts(): API_Shortcuts | API_AddonShortcutDefaults;
/** Returns the shortcuts for addons. */
getAddonsShortcuts(): API_AddonShortcuts;
/** Returns the labels for addon shortcuts. */
getAddonsShortcutLabels(): API_AddonShortcutLabels;
/** Returns the default shortcuts for addons. */
getAddonsShortcutDefaults(): API_AddonShortcutDefaults;
/**
* Sets the shortcuts to the given value.
*
* @param shortcuts The new shortcuts to set.
* @returns A promise that resolves to the new shortcuts.
*/
setShortcuts(shortcuts: API_Shortcuts): Promise<API_Shortcuts>;
/**
* Sets the shortcut for the given action to the given value.
*
* @param action The action to set the shortcut for.
* @param value The new shortcut to set.
* @returns A promise that resolves to the new shortcut.
*/
setShortcut(action: API_Action, value: API_KeyCollection): Promise<API_KeyCollection>;
/**
* Sets the shortcut for the given addon to the given value.
*
* @param addon The addon to set the shortcut for.
* @param shortcut The new shortcut to set.
* @returns A promise that resolves to the new addon shortcut.
*/
setAddonShortcut(addon: string, shortcut: API_AddonShortcut): Promise<API_AddonShortcut>;
/**
* Restores all default shortcuts.
*
* @returns A promise that resolves to the new shortcuts.
*/
restoreAllDefaultShortcuts(): Promise<API_Shortcuts>;
/**
* Restores the default shortcut for the given action.
*
* @param action The action to restore the default shortcut for.
* @returns A promise that resolves to the new shortcut.
*/
restoreDefaultShortcut(action: API_Action): Promise<API_KeyCollection>;
/**
* Handles a keydown event.
*
* @param event The event to handle.
*/
handleKeydownEvent(event: KeyboardEventLike): void;
/**
* Handles a shortcut feature.
*
* @param feature The feature to handle.
* @param event The event to handle.
*/
handleShortcutFeature(feature: API_Action, event: KeyboardEventLike): void;
}
type API_KeyCollection = string[];
interface API_Shortcuts {
fullScreen: API_KeyCollection;
togglePanel: API_KeyCollection;
panelPosition: API_KeyCollection;
toggleNav: API_KeyCollection;
toolbar: API_KeyCollection;
search: API_KeyCollection;
focusNav: API_KeyCollection;
focusIframe: API_KeyCollection;
focusPanel: API_KeyCollection;
prevComponent: API_KeyCollection;
nextComponent: API_KeyCollection;
prevStory: API_KeyCollection;
nextStory: API_KeyCollection;
shortcutsPage: API_KeyCollection;
aboutPage: API_KeyCollection;
escape: API_KeyCollection;
collapseAll: API_KeyCollection;
expandAll: API_KeyCollection;
remount: API_KeyCollection;
}
type API_Action = keyof API_Shortcuts;
interface API_AddonShortcut {
label: string;
defaultShortcut: API_KeyCollection;
actionName: string;
showInMenu?: boolean;
action: (...args: any[]) => any;
}
type API_AddonShortcuts = Record<string, API_AddonShortcut>;
type API_AddonShortcutLabels = Record<string, string>;
type API_AddonShortcutDefaults = Record<string, API_KeyCollection>;
type Direction = -1 | 1;
type ParameterName = string;
type StoryUpdate = Partial<Pick<API_StoryEntry, 'prepared' | 'parameters' | 'initialArgs' | 'argTypes' | 'args'>>;
type DocsUpdate = Partial<Pick<API_DocsEntry, 'prepared' | 'parameters'>>;
interface SubState$3 extends API_LoadedRefData {
storyId: StoryId;
internal_index?: API_PreparedStoryIndex;
viewMode: API_ViewMode;
status: API_StatusState;
filters: Record<string, API_FilterFunction>;
}
interface SubAPI$3 {
/**
* The `storyId` method is a reference to the `toId` function from `@storybook/csf`, which is used
* to generate a unique ID for a story. This ID is used to identify a specific story in the
* Storybook index.
*
* @type {typeof toId}
*/
storyId: typeof toId;
/**
* Resolves a story, docs, component or group ID to its corresponding hash entry in the index.
*
* @param {StoryId} storyId - The ID of the story to resolve.
* @param {string} [refsId] - The ID of the refs to use for resolving the story.
* @returns {API_HashEntry} - The hash entry corresponding to the given story ID.
*/
resolveStory: (storyId: StoryId, refsId?: string) => API_HashEntry | undefined;
/**
* Selects the first story to display in the Storybook UI.
*
* @returns {void}
*/
selectFirstStory: () => void;
/**
* Selects a story to display in the Storybook UI.
*
* @param {string} [kindOrId] - The kind or ID of the story to select.
* @param {StoryId} [story] - The ID of the story to select.
* @param {Object} [obj] - An optional object containing additional options.
* @param {string} [obj.ref] - The ref ID of the story to select.
* @param {API_ViewMode} [obj.viewMode] - The view mode to display the story in.
* @returns {void}
*/
selectStory: (kindOrId?: string, story?: StoryId, obj?: {
ref?: string;
viewMode?: API_ViewMode;
}) => void;
/**
* Returns the current story's data, including its ID, kind, name, and parameters.
*
* @returns {API_LeafEntry} The current story's data.
*/
getCurrentStoryData: () => API_LeafEntry;
/**
* Sets the prepared story index to the given value.
*
* @param {API_PreparedStoryIndex} index - The prepared story index to set.
* @returns {Promise<void>} A promise that resolves when the prepared story index has been set.
*/
setIndex: (index: API_PreparedStoryIndex) => Promise<void>;
/**
* Jumps to the next or previous component in the index.
*
* @param {Direction} direction - The direction to jump. Use -1 to jump to the previous component,
* and 1 to jump to the next component.
* @returns {void}
*/
jumpToComponent: (direction: Direction) => void;
/**
* Jumps to the next or previous story in the story index.
*
* @param {Direction} direction - The direction to jump. Use -1 to jump to the previous story, and
* 1 to jump to the next story.
* @returns {void}
*/
jumpToStory: (direction: Direction) => void;
/**
* Returns the data for the given story ID and optional ref ID.
*
* @param {StoryId} storyId - The ID of the story to retrieve data for.
* @param {string} [refId] - The ID of the ref to retrieve data for. If not provided, retrieves
* data for the default ref.
* @returns {API_LeafEntry} The data for the given story ID and optional ref ID.
*/
getData: (storyId: StoryId, refId?: string) => API_LeafEntry;
/**
* Returns a boolean indicating whether the given story ID and optional ref ID have been prepared.
*
* @param {StoryId} storyId - The ID of the story to check.
* @param {string} [refId] - The ID of the ref to check. If not provided, checks all refs for the
* given story ID.
* @returns {boolean} A boolean indicating whether the given story ID and optional ref ID have
* been prepared.
*/
isPrepared: (storyId: StoryId, refId?: string) => boolean;
/**
* Returns the parameters for the given story ID and optional ref ID.
*
* @param {StoryId | { storyId: StoryId; refId: string }} storyId - The ID of the story to
* retrieve parameters for, or an object containing the story ID and ref ID.
* @param {ParameterName} [parameterName] - The name of the parameter to retrieve. If not
* provided, returns all parameters.
* @returns {API_StoryEntry['parameters'] | any} The parameters for the given story ID and
* optional ref ID.
*/
getParameters: (storyId: StoryId | {
storyId: StoryId;
refId: string;
}, parameterName?: ParameterName) => API_StoryEntry['parameters'] | any;
/**
* Returns the current value of the specified parameter for the currently selected story.
*
* @template S - The type of the parameter value.
* @param {ParameterName} [parameterName] - The name of the parameter to retrieve. If not
* provided, returns all parameters.
* @returns {S} The value of the specified parameter for the currently selected story.
*/
getCurrentParameter<S>(parameterName?: ParameterName): S;
/**
* Updates the arguments for the given story with the provided new arguments.
*
* @param {API_StoryEntry} story - The story to update the arguments for.
* @param {Args} newArgs - The new arguments to set for the story.
* @returns {void}
*/
updateStoryArgs(story: API_StoryEntry, newArgs: Args): void;
/**
* Resets the arguments for the given story to their initial values.
*
* @param {API_StoryEntry} story - The story to reset the arguments for.
* @param {string[]} [argNames] - An optional array of argument names to reset. If not provided,
* all arguments will be reset.
* @returns {void}
*/
resetStoryArgs: (story: API_StoryEntry, argNames?: string[]) => void;
/**
* Finds the leaf entry for the given story ID in the given story index.
*
* @param {API_IndexHash} index - The story index to search for the leaf entry in.
* @param {StoryId} storyId - The ID of the story to find the leaf entry for.
* @returns {API_LeafEntry} The leaf entry for the given story ID, or null if no leaf entry was
* found.
*/
findLeafEntry(index: API_IndexHash, storyId: StoryId): API_LeafEntry;
/**
* Finds the leaf story ID for the given component or group ID in the given index.
*
* @param {API_IndexHash} index - The story index to search for the leaf story ID in.
* @param {StoryId} storyId - The ID of the story to find the leaf story ID for.
* @returns {StoryId} The ID of the leaf story, or null if no leaf story was found.
*/
findLeafStoryId(index: API_IndexHash, storyId: StoryId): StoryId;
/**
* Finds the ID of the sibling story in the given direction for the given story ID in the given
* story index.
*
* @param {StoryId} storyId - The ID of the story to find the sibling of.
* @param {API_IndexHash} index - The story index to search for the sibling in.
* @param {Direction} direction - The direction to search for the sibling in.
* @param {boolean} toSiblingGroup - When true, skips over leafs within the same group.
* @returns {StoryId} The ID of the sibling story, or null if no sibling was found.
*/
findSiblingStoryId(storyId: StoryId, index: API_IndexHash, direction: Direction, toSiblingGroup: boolean): StoryId;
/**
* Fetches the story index from the server.
*
* @returns {Promise<void>} A promise that resolves when the index has been fetched.
*/
fetchIndex: () => Promise<void>;
/**
* Updates the story with the given ID with the provided update object.
*
* @param {StoryId} storyId - The ID of the story to update.
* @param {StoryUpdate} update - An object containing the updated story information.
* @param {API_ComposedRef} [ref] - The composed ref of the story to update.
* @returns {Promise<void>} A promise that resolves when the story has been updated.
*/
updateStory: (storyId: StoryId, update: StoryUpdate, ref?: API_ComposedRef) => Promise<void>;
/**
* Updates the documentation for the given story ID with the given update object.
*
* @param {StoryId} storyId - The ID of the story to update.
* @param {DocsUpdate} update - An object containing the updated documentation information.
* @param {API_ComposedRef} [ref] - The composed ref of the story to update.
* @returns {Promise<void>} A promise that resolves when the documentation has been updated.
*/
updateDocs: (storyId: StoryId, update: DocsUpdate, ref?: API_ComposedRef) => Promise<void>;
/**
* Sets the preview as initialized.
*
* @param {ComposedRef} [ref] - The composed ref of the story to set as initialized.
* @returns {Promise<void>} A promise that resolves when the preview has been set as initialized.
*/
setPreviewInitialized: (ref?: API_ComposedRef) => Promise<void>;
/**
* Returns the current status of the stories.
*
* @returns {API_StatusState} The current status of the stories.
*/
getCurrentStoryStatus: () => Record<string, API_StatusObject>;
/**
* Updates the status of a collection of stories.
*
* @param {string} addonId - The ID of the addon to update.
* @param {StatusUpdate} update - An object containing the updated status information.
* @returns {Promise<void>} A promise that resolves when the status has been updated.
*/
experimental_updateStatus: (addonId: string, update: API_StatusUpdate | ((state: API_StatusState) => API_StatusUpdate)) => Promise<void>;
/**
* Updates the filtering of the index.
*
* @param {string} addonId - The ID of the addon to update.
* @param {API_FilterFunction} filterFunction - A function that returns a boolean based on the
* story, index and status.
* @returns {Promise<void>} A promise that resolves when the state has been updated.
*/
experimental_setFilter: (addonId: string, filterFunction: API_FilterFunction) => Promise<void>;
}
interface SubState$2 {
customQueryParams: QueryParams;
}
interface QueryParams {
[key: string]: string | undefined;
}
/** SubAPI for managing URL navigation and state. */
interface SubAPI$2 {
/**
* Navigate to a new URL.
*
* @param {string} url - The URL to navigate to.
* @param {NavigateOptions} options - Options for the navigation.
* @returns {void}
*/
navigateUrl: (url: string, options: NavigateOptions) => void;
/**
* Get the value of a query parameter from the current URL.
*
* @param {string} key - The key of the query parameter to get.
* @returns {string | undefined} The value of the query parameter, or undefined if it does not
* exist.
*/
getQueryParam: (key: string) => string | undefined;
/**
* Returns an object containing the current state of the URL.
*
* @returns {{
* queryParams: QueryParams;
* path: string;
* viewMode?: string;
* storyId?: string;
* url: string;
* }}
* An object containing the current state of the URL.
*/
getUrlState: () => {
queryParams: QueryParams;
path: string;
hash: string;
viewMode?: string;
storyId?: string;
url: string;
};
/**
* Set the query parameters for the current URL.
*
* @param {QueryParams} input - An object containing the query parameters to set.
* @returns {void}
*/
setQueryParams: (input: QueryParams) => void;
/**
* Set the query parameters for the current URL & navigates.
*
* @param {QueryParams} input - An object containing the query parameters to set.
* @param {NavigateOptions} options - Options for the navigation.
* @returns {void}
*/
applyQueryParams: (input: QueryParams, options?: NavigateOptions) => void;
}
interface SubState$1 {
versions: API_Versions & API_UnknownEntries;
lastVersionCheck: number;
dismissedVersionNotification: undefined | string;
}
interface SubAPI$1 {
/**
* Returns the current version of the Storybook Manager.
*
* @returns {API_Version} The current version of the Storybook Manager.
*/
getCurrentVersion: () => API_Version;
/**
* Returns the latest version of the Storybook Manager.
*
* @returns {API_Version} The latest version of the Storybook Manager.
*/
getLatestVersion: () => API_Version;
/**
* Returns the URL of the Storybook documentation for the current version.
*
* @returns {string} The URL of the Storybook Manager documentation.
*/
getDocsUrl: (options: {
subpath?: string;
versioned?: boolean;
renderer?: boolean;
}) => string;
/**
* Checks if an update is available for the Storybook Manager.
*
* @returns {boolean} True if an update is available, false otherwise.
*/
versionUpdateAvailable: () => boolean;
}
type SubState = {
whatsNewData?: WhatsNewData;
};
type SubAPI = {
isWhatsNewUnread(): boolean;
whatsNewHasBeenRead(): void;
toggleWhatsNewNotifications(): void;
};
declare class RequestResponseError<Payload extends Record<string, any> | void> extends Error {
payload: Payload | undefined;
constructor(message: string, payload?: Payload);
}
declare const experimental_requestResponse: <RequestPayload, ResponsePayload = void, CreateNewStoryErrorPayload extends Record<string, any> | void = void>(channel: Channel, requestEvent: string, responseEvent: string, payload: RequestPayload, timeout?: number) => Promise<ResponsePayload>;
declare const _default: <TObj = any>(a: TObj, ...b: Partial<TObj>[]) => TObj;
type EnvironmentType = (typeof UniversalStore.Environment)[keyof typeof UniversalStore.Environment];
type StatusType = (typeof UniversalStore.Status)[keyof typeof UniversalStore.Status];
type StateUpdater<TState> = (prevState: TState) => TState;
type Actor = {
id: string;
type: (typeof UniversalStore.ActorType)[keyof typeof UniversalStore.ActorType];
environment: EnvironmentType;
};
type EventInfo = {
actor: Actor;
forwardingActor?: Actor;
};
type Listener<TEvent> = (event: TEvent, eventInfo: EventInfo) => void;
type BaseEvent = {
type: string;
payload?: any;
};
interface SetStateEvent<TState> extends BaseEvent {
type: typeof UniversalStore.InternalEventType.SET_STATE;
payload: {
state: TState;
previousState: TState;
};
}
interface ExistingStateRequestEvent extends BaseEvent {
type: typeof UniversalStore.InternalEventType.EXISTING_STATE_REQUEST;
payload: never;
}
interface ExistingStateResponseEvent<TState> extends BaseEvent {
type: typeof UniversalStore.InternalEventType.EXISTING_STATE_RESPONSE;
payload: TState;
}
interface LeaderCreatedEvent extends BaseEvent {
type: typeof UniversalStore.InternalEventType.LEADER_CREATED;
payload: never;
}
interface FollowerCreatedEvent extends BaseEvent {
type: typeof UniversalStore.InternalEventType.FOLLOWER_CREATED;
payload: never;
}
type InternalEvent<TState> = SetStateEvent<TState> | ExistingStateRequestEvent | ExistingStateResponseEvent<TState> | FollowerCreatedEvent | LeaderCreatedEvent;
type Event<TState, TEvent extends BaseEvent> = TEvent | InternalEvent<TState>;
type ChannelLike = Pick<Channel, 'on' | 'off' | 'emit'>;
type StoreOptions<TState> = {
id: string;
leader?: boolean;
initialState?: TState;
debug?: boolean;
};
type EnvironmentOverrides = {
channel: ChannelLike;
environment: EnvironmentType;
};
/**
* A universal store implementation that synchronizes state across different environments using a
* channel-based communication.
*
* The store follows a leader-follower pattern where:
*
* - Leader: The main store instance that owns and manages the state
* - Follower: Store instances that mirror the leader's state
*
* Features:
*
* - State synchronization across environments
* - Event-based communication
* - Type-safe state and custom events
* - Subscription system for state changes and custom events
*
* @remarks
* - The store must be created using the static `create()` method, not the constructor
* - Follower stores will automatically sync with their leader's state. If they have initial state, it
* will be replaced immediately when it has synced with the leader.
*
* @example
*
* ```typescript
* interface MyState {
* count: number;
* }
* interface MyCustomEvent {
* type: 'INCREMENT';
* payload: number;
* }
*
* // Create a leader store
* const leaderStore = UniversalStore.create<MyState, MyCustomEvent>({
* id: 'my-store',
* leader: true,
* initialState: { count: 0 },
* });
*
* // Create a follower store
* const followerStore = UniversalStore.create<MyState, MyCustomEvent>({
* id: 'my-store',
* leader: false,
* });
* ```
*
* @template State - The type of state managed by the store
* @template CustomEvent - Custom events that can be sent through the store. Must have a `type`
* string and optional `payload`
* @throws {Error} If constructed directly instead of using `create()`
* @throws {Error} If created without setting a channel first
* @throws {Error} If a follower is created with initial state
* @throws {Error} If a follower cannot find its leader within 1 second
*/
declare class UniversalStore<State, CustomEvent extends {
type: string;
payload?: any;
} = {
type: string;
payload?: any;
}> {
/**
* Defines the possible actor types in the store system
*
* @readonly
*/
static readonly ActorType: {
readonly LEADER: "LEADER";
readonly FOLLOWER: "FOLLOWER";
};
/**
* Defines the possible environments the store can run in
*
* @readonly
*/
static readonly Environment: {
readonly SERVER: "SERVER";
readonly MANAGER: "MANAGER";
readonly PREVIEW: "PREVIEW";
readonly UNKNOWN: "UNKNOWN";
readonly MOCK: "MOCK";
};
/**
* Internal event types used for store synchronization
*
* @readonly
*/
static readonly InternalEventType: {
readonly EXISTING_STATE_REQUEST: "__EXISTING_STATE_REQUEST";
readonly EXISTING_STATE_RESPONSE: "__EXISTING_STATE_RESPONSE";
readonly SET_STATE: "__SET_STATE";
readonly LEADER_CREATED: "__LEADER_CREATED";
readonly FOLLOWER_CREATED: "__FOLLOWER_CREATED";
};
static readonly Status: {
readonly UNPREPARED: "UNPREPARED";
readonly SYNCING: "SYNCING";
readonly READY: "READY";
readonly ERROR: "ERROR";
};
protected static isInternalConstructing: boolean;
/**
* The preparation construct is used to keep track of all store's preparation state the promise is
* resolved when the store is prepared with the static __prepare() method which will also change
* the state from PENDING to RESOLVED
*/
private static preparation;
private static setupPreparationPromise;
/** Enable debug logs for this store */
debugging: boolean;
/** The actor object representing the store instance with a unique ID and a type */
get actor(): Actor;
/**
* The current state of the store, that signals both if the store is prepared by Storybook and
* also - in the case of a follower - if the state has been synced with the leader's state.
*/
get status(): StatusType;
/**
* A promise that resolves when the store is fully ready. A leader will be ready when the store
* has been prepared by Storybook, which is almost instantly.
*
* A follower will be ready when the state has been synced with the leader's state, within a few
* hundred milliseconds.
*/
untilReady(): Promise<[{
channel: ChannelLike;
environment: EnvironmentType;
}, void | undefined]>;
/**
* The syncing construct is used to keep track of if the instance's state has been synced with the
* other instances. A leader will immediately have the promise resolved. A follower will initially
* be in a PENDING state, and resolve the the leader has sent the existing state, or reject if no
* leader has responded before the timeout.
*/
private syncing?;
private channelEventName;
private state;
private channel?;
private environment?;
private listeners;
private id;
private actorId;
private actorType;
protected constructor(options: StoreOptions<State>, environmentOverrides?: EnvironmentOverrides);
/** Creates a new instance of UniversalStore */
static create<State = any, CustomEvent extends {
type: string;
payload?: any;
} = {
type: string;
payload?: any;
}>(options: StoreOptions<State>): UniversalStore<State, CustomEvent>;
/** Gets the current state */
getState: () => State;
/**
* Updates the store's state
*
* Either a new state or a state updater function can be passed to the method.
*/
setState(updater: State | StateUpdater<State>): void;
/**
* Subscribes to store events
*
* @returns A function to unsubscribe
*/
subscribe: {
(listener: Listener<Event<State, CustomEvent>>): () => void;
<EventType extends Event<State, CustomEvent>['type']>(eventType: EventType, listener: Listener<Extract<Event<State, CustomEvent>, {
type: EventType;
}>>): () => void;
};
/**
* Subscribes to state changes
*
* @returns Unsubscribe function
*/
onStateChange(listener: (state: State, previousState: State, eventInfo: EventInfo) => void): () => void;
/** Sends a custom event to the other stores */
send: (event: CustomEvent) => void;
private emitToChannel;
private prepareThis;
private emitToListeners;
private handleChannelEvents;
private debug;
}
/**
* A hook to use a UniversalStore in the manager UI (eg. in an addon panel). This hook will react to
* changes in the store state and re-render when the store changes.
*
* @param universalStore The UniversalStore instance to use.
* @param selector An optional selector function to select a subset of the store state.
* @remark This hook is intended for use in the manager UI. For use in the preview, import from
* `storybook/internal/preview-api` instead.
*/
declare const useUniversalStore: {
<TUniversalStore extends UniversalStore<TState, any>, TState = TUniversalStore extends UniversalStore<infer S, any> ? S : never>(universalStore: TUniversalStore): [TState, TUniversalStore['setState']];
<TUniversalStore extends UniversalStore<any, any>, TSelectedState, TState = TUniversalStore extends UniversalStore<infer S, any> ? S : never>(universalStore: TUniversalStore, selector: (state: TState) => TSelectedState): [TSelectedState, TUniversalStore['setState']];
};
/**
* A mock universal store that can be used when testing code that relies on a universal store. It
* functions exactly like a normal universal store, with a few exceptions:
*
* - It is fully isolated, meaning that it doesn't interact with any channel, and it is always a
* leader.
*
* If the second testUtils argument is provided, all the public methods are spied on, so they can be
* asserted.
*
* When a mock store is re-used across tests (eg. in stories), you manually need to reset the state
* after each test.
*
* @example
*
* ```ts
* import * as testUtils from '@storybook/test'; // in stories
* import { vi as testUtils } from 'vitest'; // ... or in Vitest tests
*
* const initialState = { ... };
* const store = new MockUniversalStore({ initialState }, testUtils);
*
* export default {
* title: 'My story',
* beforeEach: () => {
* return () => {
* store.setState(initialState);
* };
* }
* }
* ```
*/
declare class MockUniversalStore<State, CustomEvent extends {
type: string;
payload?: any;
} = {
type: string;
payload?: any;
}> extends UniversalStore<State, CustomEvent> {
private testUtils;
constructor(options: StoreOptions<State>, testUtils?: any);
/** Create a mock universal store. This is just an alias for the constructor */
static create<State = any, CustomEvent extends {
type: string;
payload?: any;
} = {
type: string;
payload?: any;
}>(options: StoreOptions<State>, testUtils?: any): MockUniversalStore<State, CustomEvent>;
unsubscribeAll(): void;
}
declare const ActiveTabs: {
SIDEBAR: "sidebar";
CANVAS: "canvas";
ADDONS: "addons";
};
declare const ManagerContext: React.Context<{
api: API;
state: State;
}>;
type State = SubState$8 & SubState$3 & SubState$6 & SubState$7 & SubState$a & SubState$1 & SubState$2 & SubState$4 & SubState$5 & SubState$9 & SubState & RouterData & API_OptionsData & DeprecatedState & Other;
type API = SubAPI$d & SubAPI$c & SubAPI$7 & SubAPI$3 & SubAPI$6 & SubAPI$a & SubAPI$9 & SubAPI$8 & SubAPI$b & SubAPI$4 & SubAPI$5 & SubAPI$1 & SubAPI$2 & SubAPI & Other;
interface DeprecatedState {
/** @deprecated Use index */
storiesHash: API_IndexHash;
/** @deprecated Use previewInitialized */
storiesConfigured: boolean;
/** @deprecated Use indexError */
storiesFailed?: Error;
}
interface Other {
[key: string]: any;
}
interface Combo {
api: API;
state: State;
}
type ManagerProviderProps = RouterData & API_ProviderData<API> & {
children: ReactNode | FC<Combo>;
};
declare const combineParameters: (...parameterSets: Parameters[]) => {};
declare class ManagerProvider extends Component<ManagerProviderProps, State> {
api: API;
modules: ReturnType<ModuleFn>[];
static displayName: string;
constructor(props: ManagerProviderProps);
static getDerivedStateFromProps(props: ManagerProviderProps, state: State): State;
shouldComponentUpdate(nextProps: ManagerProviderProps, nextState: State): boolean;
initModules: () => void;
render(): React.JSX.Element;
}
interface ManagerConsumerProps<P = unknown> {
filter?: (combo: Combo) => P;
children: FC<P> | ReactNode;
}
declare function ManagerConsumer<P = Combo>({ filter, children, }: ManagerConsumerProps<P>): ReactElement;
declare function useStorybookState(): State;
declare function useStorybookApi(): API;
interface API_EventMap {
[eventId: string]: Listener$1;
}
declare const useChannel: (eventMap: API_EventMap, deps?: any[]) => (type: string, ...args: any[]) => void;
declare function useStoryPrepared(storyId?: StoryId): boolean;
declare function useParameter<S>(parameterKey: string, defaultValue?: S): S;
declare function useSharedState<S>(stateId: string, defaultState?: S): [S, (newStateOrMerger: S | API_StateMerger<S>, options?: Options) => void];
declare function useAddonState<S>(addonId: string, defaultState?: S): [S, (newStateOrMerger: S | API_StateMerger<S>, options?: Options) => void];
declare function useArgs(): [Args, (newArgs: Args) => void, (argNames?: string[]) => void, Args];
declare function useGlobals(): [
globals: Globals,
updateGlobals: (newGlobals: Globals) => void,
storyGlobals: Globals,
userGlobals: Globals
];
declare function useGlobalTypes(): ArgTypes;
declare function useArgTypes(): ArgTypes;
declare const typesX: typeof Addon_TypesEnum;
export { type API, type API_EventMap, ActiveTabs, AddonStore, type Combo, ManagerConsumer as Consumer, type KeyboardEventLike, ManagerContext, type ManagerProviderProps, ManagerProvider as Provider, RequestResponseError, type State, type Options as StoreOptions, addons, combineParameters, controlOrMetaKey, controlOrMetaSymbol, eventMatchesShortcut, eventToShortcut, MockUniversalStore as experimental_MockUniversalStore, UniversalStore as experimental_UniversalStore, experimental_requestResponse, useUniversalStore as experimental_useUniversalStore, isMacLike, isShortcutTaken, keyToSymbol, _default as merge, mockChannel, optionOrAltSymbol, shortcutMatchesShortcut, shortcutToHumanString, typesX as types, useAddonState, useArgTypes, useArgs, useChannel, useGlobalTypes, useGlobals, useParameter, useSharedState, useStoryPrepared, useStorybookApi, useStorybookState };