chore: migrate src of addons/a11y to Typescript

addons/links/package.json

@@ -17,7 +17,7 @@
   },
   "license": "MIT",
   "main": "dist/index.js",
-  "jsnext:main": "src/index.js",
+  "types": "dist/index.d.ts",
   "scripts": {
     "prepare": "node ../../scripts/prepare.js"
   },

addons/links/src/constants.ts

@@ -2,4 +2,6 @@ export const ADDON_ID = 'storybook/links';
 
 export default {
   NAVIGATE: `${ADDON_ID}/navigate`,
+  REQUEST: `${ADDON_ID}/request`,
+  RECEIVE: `${ADDON_ID}/receive`,
 };

addons/links/src/index.ts

@@ -3,7 +3,7 @@ import { linkTo, hrefTo, withLinks } from './preview';
 
 let hasWarned = false;
 
-export function LinkTo() {
+export function LinkTo(): null {
   if (!hasWarned) {
     // eslint-disable-next-line no-console
     console.error(stripIndents`

addons/links/src/preview.ts

@@ -1,11 +1,18 @@
+import { SyntheticEvent } from 'react';
 import { document } from 'global';
 import qs from 'qs';
 import addons from '@storybook/addons';
 import { SELECT_STORY, STORY_CHANGED } from '@storybook/core-events';
-import { toId } from '@storybook/router/utils';
+import { toId } from '@storybook/router';
 
-export const navigate = params => addons.getChannel().emit(SELECT_STORY, params);
-const generateUrl = id => {
+interface Params {
+  kind: string;
+  story: string;
+}
+
+export const navigate = (params: Params) => addons.getChannel().emit(SELECT_STORY, params);
+
+const generateUrl = (id: string) => {
   const { location } = document;
   const query = qs.parse(location.search, { ignoreQueryPrefix: true });
   return `${location.origin + location.pathname}?${qs.stringify(
@@ -14,9 +21,10 @@ const generateUrl = id => {
   )}`;
 };
 
-const valueOrCall = args => value => (typeof value === 'function' ? value(...args) : value);
+const valueOrCall = (args: string[]) => (value: string | ((...args: string[]) => string)) =>
+  typeof value === 'function' ? value(...args) : value;
 
-export const linkTo = (kind, story) => (...args) => {
+export const linkTo = (kind: string, story: string) => (...args: string[]) => {
   const resolver = valueOrCall(args);
   navigate({
     kind: resolver(kind),
@@ -24,13 +32,13 @@ export const linkTo = (kind, story) => (...args) => {
   });
 };
 
-export const hrefTo = (kind, name) =>
+export const hrefTo = (kind: string, name: string): Promise<string> =>
   new Promise(resolve => {
     resolve(generateUrl(toId(kind, name)));
   });
 
-const linksListener = e => {
-  const { sbKind: kind, sbStory: story } = e.target.dataset;
+const linksListener = (e: SyntheticEvent<HTMLLinkElement>) => {
+  const { sbKind: kind, sbStory: story } = e.currentTarget.dataset;
   if (kind || story) {
     e.preventDefault();
     navigate({ kind, story });
@@ -52,7 +60,7 @@ const off = () => {
   }
 };
 
-export const withLinks = storyFn => {
+export const withLinks = (storyFn: () => void) => {
   on();
   addons.getChannel().once(STORY_CHANGED, off);
   return storyFn();

addons/links/src/react/components/link.tsx

@@ -1,5 +1,4 @@
 import React, { PureComponent } from 'react';
-import PropTypes from 'prop-types';
 
 import { navigate, hrefTo } from '../../preview';
 
@@ -9,32 +8,42 @@ import { navigate, hrefTo } from '../../preview';
 // Cmd/Ctrl/Shift/Alt + Click should trigger default browser behaviour. Same applies to non-left clicks
 const LEFT_BUTTON = 0;
 
-const isPlainLeftClick = e =>
+const isPlainLeftClick = (e: React.MouseEvent<HTMLAnchorElement, MouseEvent>) =>
   e.button === LEFT_BUTTON && !e.altKey && !e.ctrlKey && !e.metaKey && !e.shiftKey;
 
-const cancelled = (e, cb = () => {}) => {
+const cancelled = (e: React.MouseEvent<HTMLAnchorElement, MouseEvent>, cb = (_e: any) => {}) => {
   if (isPlainLeftClick(e)) {
     e.preventDefault();
     cb(e);
   }
 };
 
-export default class LinkTo extends PureComponent {
-  constructor(...args) {
-    super(...args);
+interface Props {
+  kind: string;
+  story: string;
+  children: React.ReactNode;
+}
 
-    this.state = {
-      href: '/',
-    };
+interface State {
+  href: string;
+}
 
-    this.handleClick = this.handleClick.bind(this);
-  }
+export default class LinkTo extends PureComponent<Props, State> {
+  defaultProps: Props = {
+    kind: null,
+    story: null,
+    children: undefined,
+  };
+
+  state: State = {
+    href: '/',
+  };
 
   componentDidMount() {
     this.updateHref();
   }
 
-  componentDidUpdate(prevProps) {
+  componentDidUpdate(prevProps: Props) {
     const { kind, story } = this.props;
 
     if (prevProps.kind !== kind || prevProps.story !== story) {
@@ -42,15 +51,15 @@ export default class LinkTo extends PureComponent {
     }
   }
 
-  async updateHref() {
+  updateHref = async () => {
     const { kind, story } = this.props;
     const href = await hrefTo(kind, story);
     this.setState({ href });
-  }
+  };
 
-  handleClick() {
+  handleClick = () => {
     navigate(this.props);
-  }
+  };
 
   render() {
     const { kind, story, children, ...rest } = this.props;
@@ -63,15 +72,3 @@ export default class LinkTo extends PureComponent {
     );
   }
 }
-
-LinkTo.defaultProps = {
-  kind: null,
-  story: null,
-  children: undefined,
-};
-
-LinkTo.propTypes = {
-  kind: PropTypes.string,
-  story: PropTypes.string,
-  children: PropTypes.node,
-};

addons/links/src/react/index.js

@@ -1 +0,0 @@
-export default from './components/link';

addons/links/src/react/index.ts

@@ -0,0 +1,2 @@
+import LinkTo from './components/link';
+export default LinkTo;

addons/links/src/typings.d.ts

@@ -0,0 +1 @@
+declare module 'global';