Migrate components to eslint

.eslintignore

@@ -30,8 +30,9 @@ webpack.config.ts
 
 # Temporarily ignored during TSLint transition
 # JIRA: DESKTOP-304
-ts/components/*.ts
-ts/components/*.tsx
+sticker-creator/**/*.ts
+sticker-creator/**/*.tsx
+ts/*.ts
 ts/components/conversation/**
 ts/components/stickers/**
 ts/shims/**
@@ -44,5 +45,3 @@ ts/textsecure/**
 ts/types/**
 ts/updater/**
 ts/util/**
-sticker-creator/**/*.ts
-sticker-creator/**/*.tsx

.eslintrc.js

@@ -59,7 +59,24 @@ const rules = {
     },
   ],
 
+  'react/jsx-props-no-spreading': 'off',
+
+  // Updated to reflect future airbnb standard
+  // Allows for declaring defaultProps inside a class
+  'react/static-property-placement': ['error', 'static public field'],
+
+  // JIRA: DESKTOP-657
+  'react/sort-comp': 'off',
+
+  // We don't have control over the media we're sharing, so can't require
+  // captions.
+  'jsx-a11y/media-has-caption': 'off',
+
+  // We prefer named exports
   'import/prefer-default-export': 'off',
+
+  // Prefer functional components with default params
+  'react/require-default-props': 'off',
 };
 
 module.exports = {
@@ -101,7 +118,6 @@ module.exports = {
       rules: {
         ...rules,
         'import/no-extraneous-dependencies': 'off',
-        'react/jsx-props-no-spreading': 'off',
       },
     },
   ],

_locales/en/messages.json

@@ -671,6 +671,10 @@
     "message": "Search",
     "description": "Placeholder text in the search input"
   },
+  "clearSearch": {
+    "message": "Clear Search",
+    "description": "Aria label for clear search button"
+  },
   "searchIn": {
     "message": "Search in $conversationName$",
     "description": "Shown in the search box before text is entered when searching in a specific conversation",
@@ -3568,5 +3572,25 @@
         "example": "5"
       }
     }
+  },
+  "close": {
+    "message": "close",
+    "description": "Generic close label"
+  },
+  "previous": {
+    "message": "previous",
+    "description": "Generic previous label"
+  },
+  "next": {
+    "message": "next",
+    "description": "Generic next label"
+  },
+  "CompositionArea--expand": {
+    "message": "Expand",
+    "description": "Aria label for expanding composition area"
+  },
+  "CompositionArea--attach-file": {
+    "message": "Attach file",
+    "description": "Aria label for file attachment button in composition area"
   }
 }

ts/components/Avatar.stories.tsx

@@ -1,14 +1,11 @@
 import * as React from 'react';
-import { Avatar, Props } from './Avatar';
 
 import { storiesOf } from '@storybook/react';
 import { boolean, select, text } from '@storybook/addon-knobs';
 import { action } from '@storybook/addon-actions';
 
-// @ts-ignore
+import { Avatar, Props } from './Avatar';
 import { setup as setupI18n } from '../../js/modules/i18n';
-
-// @ts-ignore
 import enMessages from '../../_locales/en/messages.json';
 import { Colors, ColorType } from '../types/Colors';
 

ts/components/Avatar.tsx

@@ -56,15 +56,16 @@ export class Avatar extends React.Component<Props, State> {
     return state;
   }
 
-  public handleImageError() {
-    // tslint:disable-next-line no-console
-    console.log('Avatar: Image failed to load; failing over to placeholder');
+  public handleImageError(): void {
+    window.log.info(
+      'Avatar: Image failed to load; failing over to placeholder'
+    );
     this.setState({
       imageBroken: true,
     });
   }
 
-  public renderImage() {
+  public renderImage(): JSX.Element | null {
     const { avatarPath, i18n, title } = this.props;
     const { imageBroken } = this.state;
 
@@ -81,7 +82,7 @@ export class Avatar extends React.Component<Props, State> {
     );
   }
 
-  public renderNoImage() {
+  public renderNoImage(): JSX.Element {
     const {
       conversationType,
       name,
@@ -129,7 +130,7 @@ export class Avatar extends React.Component<Props, State> {
     );
   }
 
-  public render() {
+  public render(): JSX.Element {
     const {
       avatarPath,
       color,
@@ -151,7 +152,11 @@ export class Avatar extends React.Component<Props, State> {
 
     if (onClick) {
       contents = (
-        <button className="module-avatar-button" onClick={onClick}>
+        <button
+          type="button"
+          className="module-avatar-button"
+          onClick={onClick}
+        >
           {hasImage ? this.renderImage() : this.renderNoImage()}
         </button>
       );

ts/components/AvatarPopup.stories.tsx

@@ -2,14 +2,11 @@ import * as React from 'react';
 
 import { storiesOf } from '@storybook/react';
 import { action } from '@storybook/addon-actions';
-import { AvatarPopup, Props } from './AvatarPopup';
-import { Colors, ColorType } from '../types/Colors';
 import { boolean, select, text } from '@storybook/addon-knobs';
 
-// @ts-ignore
+import { AvatarPopup, Props } from './AvatarPopup';
+import { Colors, ColorType } from '../types/Colors';
 import { setup as setupI18n } from '../../js/modules/i18n';
-
-// @ts-ignore
 import enMessages from '../../_locales/en/messages.json';
 
 const i18n = setupI18n('en', enMessages);

ts/components/AvatarPopup.tsx

@@ -17,7 +17,7 @@ export type Props = {
   style: React.CSSProperties;
 } & AvatarProps;
 
-export const AvatarPopup = (props: Props) => {
+export const AvatarPopup = (props: Props): JSX.Element => {
   const focusRef = React.useRef<HTMLButtonElement>(null);
   const {
     i18n,
@@ -54,6 +54,7 @@ export const AvatarPopup = (props: Props) => {
       </div>
       <hr className="module-avatar-popup__divider" />
       <button
+        type="button"
         ref={focusRef}
         className="module-avatar-popup__item"
         onClick={onViewPreferences}
@@ -68,7 +69,11 @@ export const AvatarPopup = (props: Props) => {
           {i18n('mainMenuSettings')}
         </div>
       </button>
-      <button className="module-avatar-popup__item" onClick={onViewArchive}>
+      <button
+        type="button"
+        className="module-avatar-popup__item"
+        onClick={onViewArchive}
+      >
         <div
           className={classNames(
             'module-avatar-popup__item__icon',

ts/components/CallManager.stories.tsx

@@ -1,16 +1,13 @@
 import * as React from 'react';
+import { storiesOf } from '@storybook/react';
+import { action } from '@storybook/addon-actions';
+
 import { CallManager } from './CallManager';
 import { CallState } from '../types/Calling';
 import { ColorType } from '../types/Colors';
-
-// @ts-ignore
 import { setup as setupI18n } from '../../js/modules/i18n';
-// @ts-ignore
 import enMessages from '../../_locales/en/messages.json';
 
-import { storiesOf } from '@storybook/react';
-import { action } from '@storybook/addon-actions';
-
 const i18n = setupI18n('en', enMessages);
 
 const callDetails = {

ts/components/CallScreen.stories.tsx

@@ -1,17 +1,14 @@
 import * as React from 'react';
-import { CallState } from '../types/Calling';
-import { ColorType } from '../types/Colors';
-import { CallScreen } from './CallScreen';
-
-// @ts-ignore
-import { setup as setupI18n } from '../../js/modules/i18n';
-// @ts-ignore
-import enMessages from '../../_locales/en/messages.json';
-
 import { storiesOf } from '@storybook/react';
 import { boolean, select } from '@storybook/addon-knobs';
 import { action } from '@storybook/addon-actions';
 
+import { CallState } from '../types/Calling';
+import { ColorType } from '../types/Colors';
+import { CallScreen } from './CallScreen';
+import { setup as setupI18n } from '../../js/modules/i18n';
+import enMessages from '../../_locales/en/messages.json';
+
 const i18n = setupI18n('en', enMessages);
 
 const callDetails = {

ts/components/CallScreen.tsx

@@ -27,7 +27,7 @@ const CallingButton = ({
   );
 
   return (
-    <button className={className} onClick={onClick}>
+    <button type="button" className={className} onClick={onClick}>
       <div />
     </button>
   );
@@ -55,9 +55,14 @@ type StateType = {
 };
 
 export class CallScreen extends React.Component<PropsType, StateType> {
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
   private interval: any;
+
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
   private controlsFadeTimer: any;
+
   private readonly localVideoRef: React.RefObject<HTMLVideoElement>;
+
   private readonly remoteVideoRef: React.RefObject<HTMLCanvasElement>;
 
   constructor(props: PropsType) {
@@ -75,18 +80,22 @@ export class CallScreen extends React.Component<PropsType, StateType> {
     this.remoteVideoRef = React.createRef();
   }
 
-  public componentDidMount() {
+  public componentDidMount(): void {
+    const { setLocalPreview, setRendererCanvas } = this.props;
+
     // It's really jump with a value of 500ms.
     this.interval = setInterval(this.updateAcceptedTimer, 100);
     this.fadeControls();
 
     document.addEventListener('keydown', this.handleKeyDown);
 
-    this.props.setLocalPreview({ element: this.localVideoRef });
-    this.props.setRendererCanvas({ element: this.remoteVideoRef });
+    setLocalPreview({ element: this.localVideoRef });
+    setRendererCanvas({ element: this.remoteVideoRef });
   }
 
-  public componentWillUnmount() {
+  public componentWillUnmount(): void {
+    const { setLocalPreview, setRendererCanvas } = this.props;
+
     document.removeEventListener('keydown', this.handleKeyDown);
 
     if (this.interval) {
@@ -95,11 +104,12 @@ export class CallScreen extends React.Component<PropsType, StateType> {
     if (this.controlsFadeTimer) {
       clearTimeout(this.controlsFadeTimer);
     }
-    this.props.setLocalPreview({ element: undefined });
-    this.props.setRendererCanvas({ element: undefined });
+
+    setLocalPreview({ element: undefined });
+    setRendererCanvas({ element: undefined });
   }
 
-  updateAcceptedTimer = () => {
+  updateAcceptedTimer = (): void => {
     const { acceptedTime } = this.state;
     const { callState } = this.props;
 
@@ -119,7 +129,7 @@ export class CallScreen extends React.Component<PropsType, StateType> {
     }
   };
 
-  handleKeyDown = (event: KeyboardEvent) => {
+  handleKeyDown = (event: KeyboardEvent): void => {
     const { callDetails } = this.props;
 
     if (!callDetails) {
@@ -143,8 +153,10 @@ export class CallScreen extends React.Component<PropsType, StateType> {
     }
   };
 
-  showControls = () => {
-    if (!this.state.showControls) {
+  showControls = (): void => {
+    const { showControls } = this.state;
+
+    if (!showControls) {
       this.setState({
         showControls: true,
       });
@@ -153,7 +165,7 @@ export class CallScreen extends React.Component<PropsType, StateType> {
     this.fadeControls();
   };
 
-  fadeControls = () => {
+  fadeControls = (): void => {
     if (this.controlsFadeTimer) {
       clearTimeout(this.controlsFadeTimer);
     }
@@ -165,7 +177,7 @@ export class CallScreen extends React.Component<PropsType, StateType> {
     }, 5000);
   };
 
-  toggleAudio = () => {
+  toggleAudio = (): void => {
     const { callDetails, hasLocalAudio, setLocalAudio } = this.props;
 
     if (!callDetails) {
@@ -178,7 +190,7 @@ export class CallScreen extends React.Component<PropsType, StateType> {
     });
   };
 
-  toggleVideo = () => {
+  toggleVideo = (): void => {
     const { callDetails, hasLocalVideo, setLocalVideo } = this.props;
 
     if (!callDetails) {
@@ -188,7 +200,7 @@ export class CallScreen extends React.Component<PropsType, StateType> {
     setLocalVideo({ callId: callDetails.callId, enabled: !hasLocalVideo });
   };
 
-  public render() {
+  public render(): JSX.Element | null {
     const {
       callDetails,
       callState,
@@ -238,6 +250,7 @@ export class CallScreen extends React.Component<PropsType, StateType> {
           {this.renderMessage(callState)}
           <div className="module-ongoing-call__settings">
             <button
+              type="button"
               aria-label={i18n('callingDeviceSelection__settings')}
               className="module-ongoing-call__settings--button"
               onClick={toggleSettings}
@@ -322,6 +335,7 @@ export class CallScreen extends React.Component<PropsType, StateType> {
 
   private renderMessage(callState: CallState) {
     const { i18n } = this.props;
+    const { acceptedDuration } = this.state;
 
     let message = null;
     if (callState === CallState.Prering) {
@@ -330,13 +344,8 @@ export class CallScreen extends React.Component<PropsType, StateType> {
       message = i18n('outgoingCallRinging');
     } else if (callState === CallState.Reconnecting) {
       message = i18n('callReconnecting');
-    } else if (
-      callState === CallState.Accepted &&
-      this.state.acceptedDuration
-    ) {
-      message = i18n('callDuration', [
-        this.renderDuration(this.state.acceptedDuration),
-      ]);
+    } else if (callState === CallState.Accepted && acceptedDuration) {
+      message = i18n('callDuration', [this.renderDuration(acceptedDuration)]);
     }
 
     if (!message) {
@@ -345,6 +354,7 @@ export class CallScreen extends React.Component<PropsType, StateType> {
     return <div className="module-ongoing-call__header-message">{message}</div>;
   }
 
+  // eslint-disable-next-line class-methods-use-this
   private renderDuration(ms: number): string {
     const secs = Math.floor((ms / 1000) % 60)
       .toString()

ts/components/CallingDeviceSelection.stories.tsx

@@ -1,14 +1,11 @@
 import * as React from 'react';
-import { CallingDeviceSelection, Props } from './CallingDeviceSelection';
-
-// @ts-ignore
-import { setup as setupI18n } from '../../js/modules/i18n';
-// @ts-ignore
-import enMessages from '../../_locales/en/messages.json';
-
 import { action } from '@storybook/addon-actions';
 import { storiesOf } from '@storybook/react';
 
+import { CallingDeviceSelection, Props } from './CallingDeviceSelection';
+import { setup as setupI18n } from '../../js/modules/i18n';
+import enMessages from '../../_locales/en/messages.json';
+
 const i18n = setupI18n('en', enMessages);
 
 const audioDevice = {

ts/components/CallingDeviceSelection.tsx

@@ -31,7 +31,7 @@ function renderAudioOptions(
 ): JSX.Element {
   if (!devices.length) {
     return (
-      <option aria-selected={true}>
+      <option aria-selected>
         {i18n('callingDeviceSelection__select--no-device')}
       </option>
     );
@@ -63,7 +63,7 @@ function renderVideoOptions(
 ): JSX.Element {
   if (!devices.length) {
     return (
-      <option aria-selected={true}>
+      <option aria-selected>
         {i18n('callingDeviceSelection__select--no-device')}
       </option>
     );
@@ -134,9 +134,11 @@ export const CallingDeviceSelection = ({
     <ConfirmationModal actions={[]} i18n={i18n} onClose={toggleSettings}>
       <div className="module-calling-device-selection">
         <button
+          type="button"
           className="module-calling-device-selection__close-button"
           onClick={toggleSettings}
           tabIndex={0}
+          aria-label={i18n('close')}
         />
       </div>
 
@@ -144,14 +146,13 @@ export const CallingDeviceSelection = ({
         {i18n('callingDeviceSelection__settings')}
       </h1>
 
-      <label className="module-calling-device-selection__label">
+      <label htmlFor="video" className="module-calling-device-selection__label">
         {i18n('callingDeviceSelection__label--video')}
       </label>
       <div className="module-calling-device-selection__select">
         <select
           disabled={!availableCameras.length}
           name="video"
-          // tslint:disable-next-line react-a11y-no-onchange
           onChange={createCameraChangeHandler(changeIODevice)}
           value={selectedCamera}
         >
@@ -159,14 +160,16 @@ export const CallingDeviceSelection = ({
         </select>
       </div>
 
-      <label className="module-calling-device-selection__label">
+      <label
+        htmlFor="audio-input"
+        className="module-calling-device-selection__label"
+      >
         {i18n('callingDeviceSelection__label--audio-input')}
       </label>
       <div className="module-calling-device-selection__select">
         <select
           disabled={!availableMicrophones.length}
           name="audio-input"
-          // tslint:disable-next-line react-a11y-no-onchange
           onChange={createAudioChangeHandler(
             availableMicrophones,
             changeIODevice,
@@ -178,14 +181,16 @@ export const CallingDeviceSelection = ({
         </select>
       </div>
 
-      <label className="module-calling-device-selection__label">
+      <label
+        htmlFor="audio-output"
+        className="module-calling-device-selection__label"
+      >
         {i18n('callingDeviceSelection__label--audio-output')}
       </label>
       <div className="module-calling-device-selection__select">
         <select
           disabled={!availableSpeakers.length}
           name="audio-output"
-          // tslint:disable-next-line react-a11y-no-onchange
           onChange={createAudioChangeHandler(
             availableSpeakers,
             changeIODevice,

ts/components/CaptionEditor.stories.tsx

@@ -6,11 +6,7 @@ import { action } from '@storybook/addon-actions';
 
 import { CaptionEditor, Props } from './CaptionEditor';
 import { AUDIO_MP3, IMAGE_JPEG, VIDEO_MP4 } from '../types/MIME';
-
-// @ts-ignore
 import { setup as setupI18n } from '../../js/modules/i18n';
-
-// @ts-ignore
 import enMessages from '../../_locales/en/messages.json';
 
 const i18n = setupI18n('en', enMessages);

ts/components/CaptionEditor.tsx

@@ -1,5 +1,3 @@
-// tslint:disable:react-a11y-anchors
-
 import React from 'react';
 import * as GoogleChrome from '../util/GoogleChrome';
 
@@ -24,11 +22,15 @@ export class CaptionEditor extends React.Component<Props, State> {
   private readonly handleKeyDownBound: (
     event: React.KeyboardEvent<HTMLInputElement>
   ) => void;
+
   private readonly setFocusBound: () => void;
+
   private readonly onChangeBound: (
     event: React.FormEvent<HTMLInputElement>
   ) => void;
+
   private readonly onSaveBound: () => void;
+
   private readonly inputRef: React.RefObject<HTMLInputElement>;
 
   constructor(props: Props) {
@@ -46,14 +48,14 @@ export class CaptionEditor extends React.Component<Props, State> {
     this.inputRef = React.createRef();
   }
 
-  public componentDidMount() {
+  public componentDidMount(): void {
     // Forcing focus after a delay due to some focus contention with ConversationView
     setTimeout(() => {
       this.setFocus();
     }, 200);
   }
 
-  public handleKeyDown(event: React.KeyboardEvent<HTMLInputElement>) {
+  public handleKeyDown(event: React.KeyboardEvent<HTMLInputElement>): void {
     const { close, onSave } = this.props;
 
     if (close && event.key === 'Escape') {
@@ -72,13 +74,13 @@ export class CaptionEditor extends React.Component<Props, State> {
     }
   }
 
-  public setFocus() {
+  public setFocus(): void {
     if (this.inputRef.current) {
       this.inputRef.current.focus();
     }
   }
 
-  public onSave() {
+  public onSave(): void {
     const { onSave } = this.props;
     const { caption } = this.state;
 
@@ -87,16 +89,15 @@ export class CaptionEditor extends React.Component<Props, State> {
     }
   }
 
-  public onChange(event: React.FormEvent<HTMLInputElement>) {
-    // @ts-ignore
-    const { value } = event.target;
+  public onChange(event: React.FormEvent<HTMLInputElement>): void {
+    const { value } = event.target as HTMLInputElement;
 
     this.setState({
       caption: value,
     });
   }
 
-  public renderObject() {
+  public renderObject(): JSX.Element {
     const { url, i18n, attachment } = this.props;
     const { contentType } = attachment || { contentType: null };
 
@@ -114,7 +115,7 @@ export class CaptionEditor extends React.Component<Props, State> {
     const isVideoTypeSupported = GoogleChrome.isVideoTypeSupported(contentType);
     if (isVideoTypeSupported) {
       return (
-        <video className="module-caption-editor__video" controls={true}>
+        <video className="module-caption-editor__video" controls>
           <source src={url} />
         </video>
       );
@@ -123,14 +124,16 @@ export class CaptionEditor extends React.Component<Props, State> {
     return <div className="module-caption-editor__placeholder" />;
   }
 
-  public render() {
+  // Events handled by props
+  /* eslint-disable jsx-a11y/click-events-have-key-events */
+  public render(): JSX.Element {
     const { i18n, close } = this.props;
     const { caption } = this.state;
     const onKeyDown = close ? this.handleKeyDownBound : undefined;
 
     return (
       <div
-        role="dialog"
+        role="presentation"
         onClick={this.setFocusBound}
         className="module-caption-editor"
       >
@@ -139,6 +142,8 @@ export class CaptionEditor extends React.Component<Props, State> {
           role="button"
           onClick={close}
           className="module-caption-editor__close-button"
+          tabIndex={0}
+          aria-label={i18n('close')}
         />
         <div className="module-caption-editor__media-container">
           {this.renderObject()}
@@ -157,6 +162,7 @@ export class CaptionEditor extends React.Component<Props, State> {
             />
             {caption ? (
               <button
+                type="button"
                 onClick={this.onSaveBound}
                 className="module-caption-editor__save-button"
               >
@@ -168,4 +174,5 @@ export class CaptionEditor extends React.Component<Props, State> {
       </div>
     );
   }
+  /* eslint-enable jsx-a11y/click-events-have-key-events */
 }

ts/components/CompositionArea.stories.tsx

@@ -1,19 +1,13 @@
 import * as React from 'react';
 
+import 'draft-js/dist/Draft.css';
 import { storiesOf } from '@storybook/react';
 import { action } from '@storybook/addon-actions';
+import { boolean } from '@storybook/addon-knobs';
 
 import { CompositionArea, Props } from './CompositionArea';
-
-// tslint:disable-next-line
-import 'draft-js/dist/Draft.css';
-
-// @ts-ignore
 import { setup as setupI18n } from '../../js/modules/i18n';
-
-// @ts-ignore
 import enMessages from '../../_locales/en/messages.json';
-import { boolean } from '@storybook/addon-knobs';
 
 const i18n = setupI18n('en', enMessages);
 
@@ -91,6 +85,7 @@ story.add('Starting Text', () => {
 
 story.add('Sticker Button', () => {
   const props = createProps({
+    // eslint-disable-next-line @typescript-eslint/no-explicit-any
     knownPacks: [{} as any],
   });
 

ts/components/CompositionArea.tsx

@@ -76,11 +76,11 @@ export type Props = Pick<
   OwnProps;
 
 const emptyElement = (el: HTMLElement) => {
-  // tslint:disable-next-line no-inner-html
+  // Necessary to deal with Backbone views
+  // eslint-disable-next-line no-param-reassign
   el.innerHTML = '';
 };
 
-// tslint:disable-next-line max-func-body-length cyclomatic-complexity
 export const CompositionArea = ({
   i18n,
   attachmentListEl,
@@ -127,7 +127,7 @@ export const CompositionArea = ({
   phoneNumber,
   profileName,
   title,
-}: Props) => {
+}: Props): JSX.Element => {
   const [disabled, setDisabled] = React.useState(false);
   const [showMic, setShowMic] = React.useState(!startingText);
   const [micActive, setMicActive] = React.useState(false);
@@ -169,6 +169,8 @@ export const CompositionArea = ({
   const attSlotRef = React.useRef<HTMLDivElement>(null);
 
   if (compositionApi) {
+    // Using a React.MutableRefObject, so we need to reassign this prop.
+    // eslint-disable-next-line no-param-reassign
     compositionApi.current = {
       isDirty: () => dirty,
       focusInput,
@@ -255,7 +257,12 @@ export const CompositionArea = ({
   const attButton = (
     <div className="module-composition-area__button-cell">
       <div className="choose-file">
-        <button className="paperclip thumbnail" onClick={onChooseAttachment} />
+        <button
+          type="button"
+          className="paperclip thumbnail"
+          onClick={onChooseAttachment}
+          aria-label={i18n('CompositionArea--attach-file')}
+        />
       </div>
     </div>
   );
@@ -268,8 +275,10 @@ export const CompositionArea = ({
       )}
     >
       <button
+        type="button"
         className="module-composition-area__send-button"
         onClick={handleForceSend}
+        aria-label={i18n('sendMessageToContact')}
       />
     </div>
   );
@@ -343,6 +352,7 @@ export const CompositionArea = ({
     <div className="module-composition-area">
       <div className="module-composition-area__toggle-large">
         <button
+          type="button"
           className={classNames(
             'module-composition-area__toggle-large__button',
             large
@@ -352,6 +362,7 @@ export const CompositionArea = ({
           // This prevents the user from tabbing here
           tabIndex={-1}
           onClick={handleToggleLarge}
+          aria-label={i18n('CompositionArea--expand')}
         />
       </div>
       <div

ts/components/CompositionInput.stories.tsx

@@ -1,19 +1,13 @@
 import * as React from 'react';
 
+import 'draft-js/dist/Draft.css';
+import { boolean, select } from '@storybook/addon-knobs';
 import { storiesOf } from '@storybook/react';
 import { action } from '@storybook/addon-actions';
 
 import { CompositionInput, Props } from './CompositionInput';
-
-// tslint:disable-next-line
-import 'draft-js/dist/Draft.css';
-
-// @ts-ignore
 import { setup as setupI18n } from '../../js/modules/i18n';
-
-// @ts-ignore
 import enMessages from '../../_locales/en/messages.json';
-import { boolean, select } from '@storybook/addon-knobs';
 
 const i18n = setupI18n('en', enMessages);
 

ts/components/CompositionInput.tsx

@@ -63,7 +63,7 @@ function getTrimmedMatchAtIndex(str: string, index: number, pattern: RegExp) {
   // Reset regex state
   pattern.exec('');
 
-  // tslint:disable-next-line no-conditional-assignment
+  // eslint-disable-next-line no-cond-assign
   while ((match = pattern.exec(str))) {
     const matchStr = match.toString();
     const start = match.index + (matchStr.length - matchStr.trimLeft().length);
@@ -155,7 +155,7 @@ const compositeDecorator = new CompositeDecorator([
       const text = block.getText();
       let match;
       let index;
-      // tslint:disable-next-line no-conditional-assignment
+      // eslint-disable-next-line no-cond-assign
       while ((match = pat.exec(text))) {
         index = match.index;
         cb(index, index + match[0].length);
@@ -174,7 +174,7 @@ const compositeDecorator = new CompositeDecorator([
         <Emoji
           shortName={contentState.getEntity(entityKey).getData().shortName}
           skinTone={contentState.getEntity(entityKey).getData().skinTone}
-          inline={true}
+          inline
           size={20}
         >
           {children}
@@ -204,7 +204,6 @@ const getInitialEditorState = (startingText?: string) => {
   return EditorState.forceSelection(state, selectionAtEnd);
 };
 
-// tslint:disable-next-line max-func-body-length
 export const CompositionInput = ({
   i18n,
   disabled,
@@ -221,7 +220,7 @@ export const CompositionInput = ({
   startingText,
   getQuotedMessage,
   clearQuotedMessage,
-}: Props) => {
+}: Props): JSX.Element => {
   const [editorRenderState, setEditorRenderState] = React.useState(
     getInitialEditorState(startingText)
   );
@@ -299,119 +298,18 @@ export const CompositionInput = ({
     setSearchText('');
   }, [setEmojiResults, setEmojiResultsIndex, setSearchText]);
 
-  const handleEditorStateChange = React.useCallback(
-    (newState: EditorState) => {
-      // Does the current position have any emojiable text?
-      const selection = newState.getSelection();
-      const caretLocation = selection.getStartOffset();
-      const content = newState
+  const getWordAtCaret = React.useCallback((state = editorStateRef.current) => {
+    const selection = state.getSelection();
+    const index = selection.getAnchorOffset();
+
+    return getWordAtIndex(
+      state
         .getCurrentContent()
         .getBlockForKey(selection.getAnchorKey())
-        .getText();
-      const match = getTrimmedMatchAtIndex(content, caretLocation, colonsRegex);
-
-      // Update the state to indicate emojiable text at the current position.
-      const newSearchText = match ? match.trim().substr(1) : '';
-      if (newSearchText.endsWith(':')) {
-        const bareText = trimEnd(newSearchText, ':');
-        const emoji = head(search(bareText));
-        if (emoji && bareText === emoji.short_name) {
-          handleEditorCommand('enter-emoji', newState, emoji);
-
-          // Prevent inserted colon from persisting to state
-          return;
-        } else {
-          resetEmojiResults();
-        }
-      } else if (triggerEmojiRegex.test(newSearchText) && focusRef.current) {
-        setEmojiResults(search(newSearchText, 10));
-        setSearchText(newSearchText);
-        setEmojiResultsIndex(0);
-      } else {
-        resetEmojiResults();
-      }
-
-      // Finally, update the editor state
-      setAndTrackEditorState(newState);
-      updateExternalStateListeners(newState);
-    },
-    [
-      focusRef,
-      resetEmojiResults,
-      setAndTrackEditorState,
-      setSearchText,
-      setEmojiResults,
-    ]
-  );
-
-  const handleBeforeInput = React.useCallback((): DraftHandleValue => {
-    if (!editorStateRef.current) {
-      return 'not-handled';
-    }
-
-    const editorState = editorStateRef.current;
-    const plainText = editorState.getCurrentContent().getPlainText();
-    const selectedTextLength = getLengthOfSelectedText(editorState);
-
-    if (plainText.length - selectedTextLength > MAX_LENGTH - 1) {
-      onTextTooLong();
-
-      return 'handled';
-    }
-
-    return 'not-handled';
-  }, [onTextTooLong, editorStateRef]);
-
-  const handlePastedText = React.useCallback(
-    (pastedText: string): DraftHandleValue => {
-      if (!editorStateRef.current) {
-        return 'not-handled';
-      }
-
-      const editorState = editorStateRef.current;
-      const plainText = editorState.getCurrentContent().getPlainText();
-      const selectedTextLength = getLengthOfSelectedText(editorState);
-
-      if (
-        plainText.length + pastedText.length - selectedTextLength >
-        MAX_LENGTH
-      ) {
-        onTextTooLong();
-
-        return 'handled';
-      }
-
-      return 'not-handled';
-    },
-    [onTextTooLong, editorStateRef]
-  );
-
-  const resetEditorState = React.useCallback(() => {
-    const newEmptyState = EditorState.createEmpty(compositeDecorator);
-    setAndTrackEditorState(newEmptyState);
-    resetEmojiResults();
-  }, [editorStateRef, resetEmojiResults, setAndTrackEditorState]);
-
-  const submit = React.useCallback(() => {
-    const { current: state } = editorStateRef;
-    const trimmedText = state
-      .getCurrentContent()
-      .getPlainText()
-      .trim();
-    onSubmit(trimmedText);
-  }, [editorStateRef, onSubmit]);
-
-  const handleEditorSizeChange = React.useCallback(
-    (rect: ContentRect) => {
-      if (rect.bounds) {
-        setEditorWidth(rect.bounds.width);
-        if (onEditorSizeChange) {
-          onEditorSizeChange(rect);
-        }
-      }
-    },
-    [onEditorSizeChange, setEditorWidth]
-  );
+        .getText(),
+      index
+    );
+  }, []);
 
   const selectEmojiResult = React.useCallback(
     (dir: 'next' | 'prev', e?: React.KeyboardEvent) => {
@@ -445,93 +343,17 @@ export const CompositionInput = ({
         }
       }
     },
-    [emojiResultsIndex, emojiResults]
+    [emojiResults]
   );
 
-  const handleEditorArrowKey = React.useCallback(
-    (e: React.KeyboardEvent) => {
-      if (e.key === 'ArrowUp') {
-        selectEmojiResult('prev', e);
-      }
-
-      if (e.key === 'ArrowDown') {
-        selectEmojiResult('next', e);
-      }
-    },
-    [selectEmojiResult]
-  );
-
-  const handleEscapeKey = React.useCallback(
-    (e: React.KeyboardEvent) => {
-      if (emojiResults.length > 0) {
-        e.preventDefault();
-        resetEmojiResults();
-      } else if (getQuotedMessage()) {
-        clearQuotedMessage();
-      }
-    },
-    [resetEmojiResults, emojiResults]
-  );
-
-  const getWordAtCaret = React.useCallback((state = editorStateRef.current) => {
-    const selection = state.getSelection();
-    const index = selection.getAnchorOffset();
-
-    return getWordAtIndex(
-      state
-        .getCurrentContent()
-        .getBlockForKey(selection.getAnchorKey())
-        .getText(),
-      index
-    );
-  }, []);
-
-  const insertEmoji = React.useCallback(
-    (e: EmojiPickDataType, replaceWord: boolean = false) => {
-      const { current: state } = editorStateRef;
-      const selection = state.getSelection();
-      const oldContent = state.getCurrentContent();
-      const emojiContent = convertShortName(e.shortName, e.skinTone);
-      const emojiEntityKey = oldContent
-        .createEntity('emoji', 'IMMUTABLE', {
-          shortName: e.shortName,
-          skinTone: e.skinTone,
-        })
-        .getLastCreatedEntityKey();
-      const word = getWordAtCaret();
-
-      let newContent = Modifier.replaceText(
-        oldContent,
-        replaceWord
-          ? (selection.merge({
-              anchorOffset: word.start,
-              focusOffset: word.end,
-            }) as SelectionState)
-          : selection,
-        emojiContent,
-        undefined,
-        emojiEntityKey
-      );
-
-      const afterSelection = newContent.getSelectionAfter();
-
-      if (
-        afterSelection.getAnchorOffset() ===
-        newContent.getBlockForKey(afterSelection.getAnchorKey()).getLength()
-      ) {
-        newContent = Modifier.insertText(newContent, afterSelection, ' ');
-      }
-
-      const newState = EditorState.push(
-        state,
-        newContent,
-        'insert-emoji' as EditorChangeType
-      );
-      setAndTrackEditorState(newState);
-      resetEmojiResults();
-    },
-    [editorStateRef, setAndTrackEditorState, resetEmojiResults]
-  );
+  const submit = React.useCallback(() => {
+    const { current: state } = editorStateRef;
+    const trimmedText = state
+      .getCurrentContent()
+      .getPlainText()
+      .trim();
+    onSubmit(trimmedText);
+  }, [editorStateRef, onSubmit]);
 
   const handleEditorCommand = React.useCallback(
     (
@@ -604,9 +426,12 @@ export const CompositionInput = ({
 
       return 'not-handled';
     },
+    // Missing `onPickEmoji`, which is a prop, so not clearly memoized
+    // eslint-disable-next-line react-hooks/exhaustive-deps
     [
       emojiResults,
       emojiResultsIndex,
+      getWordAtCaret,
       resetEmojiResults,
       selectEmojiResult,
       setAndTrackEditorState,
@@ -615,6 +440,184 @@ export const CompositionInput = ({
     ]
   );
 
+  const handleEditorStateChange = React.useCallback(
+    (newState: EditorState) => {
+      // Does the current position have any emojiable text?
+      const selection = newState.getSelection();
+      const caretLocation = selection.getStartOffset();
+      const content = newState
+        .getCurrentContent()
+        .getBlockForKey(selection.getAnchorKey())
+        .getText();
+      const match = getTrimmedMatchAtIndex(content, caretLocation, colonsRegex);
+
+      // Update the state to indicate emojiable text at the current position.
+      const newSearchText = match ? match.trim().substr(1) : '';
+      if (newSearchText.endsWith(':')) {
+        const bareText = trimEnd(newSearchText, ':');
+        const emoji = head(search(bareText));
+        if (emoji && bareText === emoji.short_name) {
+          handleEditorCommand('enter-emoji', newState, emoji);
+
+          // Prevent inserted colon from persisting to state
+          return;
+        }
+        resetEmojiResults();
+      } else if (triggerEmojiRegex.test(newSearchText) && focusRef.current) {
+        setEmojiResults(search(newSearchText, 10));
+        setSearchText(newSearchText);
+        setEmojiResultsIndex(0);
+      } else {
+        resetEmojiResults();
+      }
+
+      // Finally, update the editor state
+      setAndTrackEditorState(newState);
+      updateExternalStateListeners(newState);
+    },
+    [
+      focusRef,
+      handleEditorCommand,
+      resetEmojiResults,
+      setAndTrackEditorState,
+      setSearchText,
+      setEmojiResults,
+      updateExternalStateListeners,
+    ]
+  );
+
+  const handleBeforeInput = React.useCallback((): DraftHandleValue => {
+    if (!editorStateRef.current) {
+      return 'not-handled';
+    }
+
+    const editorState = editorStateRef.current;
+    const plainText = editorState.getCurrentContent().getPlainText();
+    const selectedTextLength = getLengthOfSelectedText(editorState);
+
+    if (plainText.length - selectedTextLength > MAX_LENGTH - 1) {
+      onTextTooLong();
+
+      return 'handled';
+    }
+
+    return 'not-handled';
+  }, [onTextTooLong, editorStateRef]);
+
+  const handlePastedText = React.useCallback(
+    (pastedText: string): DraftHandleValue => {
+      if (!editorStateRef.current) {
+        return 'not-handled';
+      }
+
+      const editorState = editorStateRef.current;
+      const plainText = editorState.getCurrentContent().getPlainText();
+      const selectedTextLength = getLengthOfSelectedText(editorState);
+
+      if (
+        plainText.length + pastedText.length - selectedTextLength >
+        MAX_LENGTH
+      ) {
+        onTextTooLong();
+
+        return 'handled';
+      }
+
+      return 'not-handled';
+    },
+    [onTextTooLong, editorStateRef]
+  );
+
+  const resetEditorState = React.useCallback(() => {
+    const newEmptyState = EditorState.createEmpty(compositeDecorator);
+    setAndTrackEditorState(newEmptyState);
+    resetEmojiResults();
+  }, [resetEmojiResults, setAndTrackEditorState]);
+
+  const handleEditorSizeChange = React.useCallback(
+    (rect: ContentRect) => {
+      if (rect.bounds) {
+        setEditorWidth(rect.bounds.width);
+        if (onEditorSizeChange) {
+          onEditorSizeChange(rect);
+        }
+      }
+    },
+    [onEditorSizeChange, setEditorWidth]
+  );
+
+  const handleEditorArrowKey = React.useCallback(
+    (e: React.KeyboardEvent) => {
+      if (e.key === 'ArrowUp') {
+        selectEmojiResult('prev', e);
+      }
+
+      if (e.key === 'ArrowDown') {
+        selectEmojiResult('next', e);
+      }
+    },
+    [selectEmojiResult]
+  );
+
+  const handleEscapeKey = React.useCallback(
+    (e: React.KeyboardEvent) => {
+      if (emojiResults.length > 0) {
+        e.preventDefault();
+        resetEmojiResults();
+      } else if (getQuotedMessage()) {
+        clearQuotedMessage();
+      }
+    },
+    [clearQuotedMessage, emojiResults, getQuotedMessage, resetEmojiResults]
+  );
+
+  const insertEmoji = React.useCallback(
+    (e: EmojiPickDataType, replaceWord = false) => {
+      const { current: state } = editorStateRef;
+      const selection = state.getSelection();
+      const oldContent = state.getCurrentContent();
+      const emojiContent = convertShortName(e.shortName, e.skinTone);
+      const emojiEntityKey = oldContent
+        .createEntity('emoji', 'IMMUTABLE', {
+          shortName: e.shortName,
+          skinTone: e.skinTone,
+        })
+        .getLastCreatedEntityKey();
+      const word = getWordAtCaret();
+
+      let newContent = Modifier.replaceText(
+        oldContent,
+        replaceWord
+          ? (selection.merge({
+              anchorOffset: word.start,
+              focusOffset: word.end,
+            }) as SelectionState)
+          : selection,
+        emojiContent,
+        undefined,
+        emojiEntityKey
+      );
+
+      const afterSelection = newContent.getSelectionAfter();
+
+      if (
+        afterSelection.getAnchorOffset() ===
+        newContent.getBlockForKey(afterSelection.getAnchorKey()).getLength()
+      ) {
+        newContent = Modifier.insertText(newContent, afterSelection, ' ');
+      }
+
+      const newState = EditorState.push(
+        state,
+        newContent,
+        'insert-emoji' as EditorChangeType
+      );
+      setAndTrackEditorState(newState);
+      resetEmojiResults();
+    },
+    [editorStateRef, getWordAtCaret, setAndTrackEditorState, resetEmojiResults]
+  );
+
   const onTab = React.useCallback(
     (e: React.KeyboardEvent) => {
       if (e.shiftKey || emojiResults.length === 0) {
@@ -624,11 +627,10 @@ export const CompositionInput = ({
       e.preventDefault();
       handleEditorCommand('enter-emoji', editorStateRef.current);
     },
-    [emojiResults, editorStateRef, handleEditorCommand, resetEmojiResults]
+    [emojiResults, editorStateRef, handleEditorCommand]
   );
 
   const editorKeybindingFn = React.useCallback(
-    // tslint:disable-next-line cyclomatic-complexity
     (e: React.KeyboardEvent): CompositionInputEditorCommand | null => {
       const commandKey = get(window, 'platform') === 'darwin' && e.metaKey;
       const controlKey = get(window, 'platform') !== 'darwin' && e.ctrlKey;
@@ -718,7 +720,8 @@ export const CompositionInput = ({
 
   // Manage focus
   // Chromium places the editor caret at the beginning of contenteditable divs on focus
-  // Here, we force the last known selection on focusin (doing this with onFocus wasn't behaving properly)
+  // Here, we force the last known selection on focusin
+  // (doing this with onFocus wasn't behaving properly)
   // This needs to be done in an effect because React doesn't support focus{In,Out}
   // https://github.com/facebook/react/issues/6410
   React.useLayoutEffect(() => {
@@ -744,6 +747,8 @@ export const CompositionInput = ({
   }, [editorStateRef, rootElRef, setAndTrackEditorState]);
 
   if (inputApi) {
+    // Using a React.MutableRefObject, so we need to reassign this prop.
+    // eslint-disable-next-line no-param-reassign
     inputApi.current = {
       reset: resetEditorState,
       submit,
@@ -756,7 +761,7 @@ export const CompositionInput = ({
     <Manager>
       <Reference>
         {({ ref: popperRef }) => (
-          <Measure bounds={true} onResize={handleEditorSizeChange}>
+          <Measure bounds onResize={handleEditorSizeChange}>
             {({ measureRef }) => (
               <div
                 className="module-composition-input__input"
@@ -783,8 +788,8 @@ export const CompositionInput = ({
                     handleBeforeInput={handleBeforeInput}
                     handlePastedText={handlePastedText}
                     keyBindingFn={editorKeybindingFn}
-                    spellCheck={true}
-                    stripPastedStyles={true}
+                    spellCheck
+                    stripPastedStyles
                     readOnly={disabled}
                     onFocus={onFocus}
                     onBlur={onBlur}
@@ -807,11 +812,13 @@ export const CompositionInput = ({
                     width: editorWidth,
                   }}
                   role="listbox"
-                  aria-expanded={true}
+                  aria-expanded
                   aria-activedescendant={`emoji-result--${emojiResults[emojiResultsIndex].short_name}`}
+                  tabIndex={0}
                 >
                   {emojiResults.map((emoji, index) => (
                     <button
+                      type="button"
                       key={emoji.short_name}
                       id={`emoji-result--${emoji.short_name}`}
                       role="option button"

ts/components/ConfirmationDialog.stories.tsx

@@ -1,15 +1,12 @@
 import * as React from 'react';
-import { ConfirmationDialog } from './ConfirmationDialog';
-
-// @ts-ignore
-import { setup as setupI18n } from '../../js/modules/i18n';
-// @ts-ignore
-import enMessages from '../../_locales/en/messages.json';
-
 import { storiesOf } from '@storybook/react';
 import { action } from '@storybook/addon-actions';
 import { text } from '@storybook/addon-knobs';
 
+import { ConfirmationDialog } from './ConfirmationDialog';
+import { setup as setupI18n } from '../../js/modules/i18n';
+import enMessages from '../../_locales/en/messages.json';
+
 const i18n = setupI18n('en', enMessages);
 
 storiesOf('Components/ConfirmationDialog', module).add(

ts/components/ConfirmationDialog.tsx

@@ -73,6 +73,7 @@ export const ConfirmationDialog = React.memo(
         {actions.length > 0 && (
           <div className="module-confirmation-dialog__container__buttons">
             <button
+              type="button"
               onClick={handleCancel}
               ref={focusRef}
               className="module-confirmation-dialog__container__buttons__button"
@@ -81,7 +82,8 @@ export const ConfirmationDialog = React.memo(
             </button>
             {actions.map((action, i) => (
               <button
-                key={i}
+                type="button"
+                key={action.text}
                 onClick={handleAction}
                 data-action={i}
                 className={classNames(

ts/components/ConfirmationModal.tsx

@@ -14,7 +14,6 @@ export type OwnProps = {
 export type Props = OwnProps & ConfirmationDialogProps;
 
 export const ConfirmationModal = React.memo(
-  // tslint:disable-next-line max-func-body-length
   ({ i18n, onClose, children, ...rest }: Props) => {
     const [root, setRoot] = React.useState<HTMLElement | null>(null);
 
@@ -54,13 +53,22 @@ export const ConfirmationModal = React.memo(
       [onClose]
     );
 
+    const handleKeyCancel = React.useCallback(
+      (e: React.KeyboardEvent) => {
+        if (e.target === e.currentTarget && e.keyCode === 27) {
+          onClose();
+        }
+      },
+      [onClose]
+    );
+
     return root
       ? createPortal(
           <div
-            // Not really a button. Just a background which can be clicked to close modal
-            role="button"
+            role="presentation"
             className="module-confirmation-dialog__overlay"
             onClick={handleCancel}
+            onKeyUp={handleKeyCancel}
           >
             <ConfirmationDialog i18n={i18n} {...rest} onClose={onClose}>
               {children}

ts/components/ContactListItem.stories.tsx

@@ -4,12 +4,8 @@ import { storiesOf } from '@storybook/react';
 import { action } from '@storybook/addon-actions';
 
 import { gifUrl } from '../storybook/Fixtures';
-
-// @ts-ignore
 import { setup as setupI18n } from '../../js/modules/i18n';
-// @ts-ignore
-import enMessages from '../../\_locales/en/messages.json';
-
+import enMessages from '../../_locales/en/messages.json';
 import { ContactListItem } from './ContactListItem';
 
 const i18n = setupI18n('en', enMessages);

ts/components/ContactListItem.tsx

@@ -23,7 +23,7 @@ interface Props {
 }
 
 export class ContactListItem extends React.Component<Props> {
-  public renderAvatar() {
+  public renderAvatar(): JSX.Element {
     const {
       avatarPath,
       i18n,
@@ -49,7 +49,7 @@ export class ContactListItem extends React.Component<Props> {
     );
   }
 
-  public render() {
+  public render(): JSX.Element {
     const {
       i18n,
       isAdmin,
@@ -75,6 +75,7 @@ export class ContactListItem extends React.Component<Props> {
           'module-contact-list-item',
           onClick ? 'module-contact-list-item--with-click-handler' : null
         )}
+        type="button"
       >
         {this.renderAvatar()}
         <div className="module-contact-list-item__text">

ts/components/ConversationListItem.stories.tsx

@@ -1,22 +1,17 @@
 import * as React from 'react';
+
+import 'draft-js/dist/Draft.css';
 import { storiesOf } from '@storybook/react';
+import { action } from '@storybook/addon-actions';
+import { boolean, date, select, text } from '@storybook/addon-knobs';
 
 import {
   ConversationListItem,
   MessageStatuses,
   Props,
 } from './ConversationListItem';
-
-// tslint:disable-next-line
-import 'draft-js/dist/Draft.css';
-
-// @ts-ignore
 import { setup as setupI18n } from '../../js/modules/i18n';
-
-// @ts-ignore
 import enMessages from '../../_locales/en/messages.json';
-import { action } from '@storybook/addon-actions';
-import { boolean, date, select, text } from '@storybook/addon-knobs';
 
 const i18n = setupI18n('en', enMessages);
 
@@ -191,7 +186,6 @@ Line 4, well.`,
 
   return messages.map(message => {
     const props = createProps({
-      name,
       lastMessage: {
         text: message,
         status: 'read',
@@ -212,7 +206,6 @@ story.add('Various Times', () => {
 
   return times.map(([lastUpdated, messageText]) => {
     const props = createProps({
-      name,
       lastUpdated,
       lastMessage: {
         text: messageText,
@@ -227,12 +220,14 @@ story.add('Various Times', () => {
 story.add('Missing Date', () => {
   const props = createProps();
 
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
   return <ConversationListItem {...props} lastUpdated={undefined as any} />;
 });
 
 story.add('Missing Message', () => {
   const props = createProps();
 
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
   return <ConversationListItem {...props} lastMessage={undefined as any} />;
 });
 
@@ -242,6 +237,7 @@ story.add('Missing Text', () => {
   return (
     <ConversationListItem
       {...props}
+      // eslint-disable-next-line @typescript-eslint/no-explicit-any
       lastMessage={{ text: undefined as any, status: 'sent' }}
     />
   );

ts/components/ConversationListItem.tsx

@@ -1,4 +1,4 @@
-import React from 'react';
+import React, { CSSProperties } from 'react';
 import classNames from 'classnames';
 import { isNumber } from 'lodash';
 
@@ -43,7 +43,7 @@ export type PropsData = {
   draftPreview?: string;
   shouldShowDraft?: boolean;
 
-  typingContact?: Object;
+  typingContact?: unknown;
   lastMessage?: {
     status: MessageStatusType;
     text: string;
@@ -53,14 +53,14 @@ export type PropsData = {
 
 type PropsHousekeeping = {
   i18n: LocalizerType;
-  style?: Object;
+  style?: CSSProperties;
   onClick?: (id: string) => void;
 };
 
 export type Props = PropsData & PropsHousekeeping;
 
 export class ConversationListItem extends React.PureComponent<Props> {
-  public renderAvatar() {
+  public renderAvatar(): JSX.Element {
     const {
       avatarPath,
       color,
@@ -92,7 +92,7 @@ export class ConversationListItem extends React.PureComponent<Props> {
     );
   }
 
-  public renderUnread() {
+  public renderUnread(): JSX.Element | null {
     const { unreadCount } = this.props;
 
     if (isNumber(unreadCount) && unreadCount > 0) {
@@ -106,7 +106,7 @@ export class ConversationListItem extends React.PureComponent<Props> {
     return null;
   }
 
-  public renderHeader() {
+  public renderHeader(): JSX.Element {
     const {
       unreadCount,
       i18n,
@@ -162,7 +162,7 @@ export class ConversationListItem extends React.PureComponent<Props> {
     );
   }
 
-  public renderMessage() {
+  public renderMessage(): JSX.Element | null {
     const {
       draftPreview,
       i18n,
@@ -185,6 +185,8 @@ export class ConversationListItem extends React.PureComponent<Props> {
 
     // Note: instead of re-using showingDraft here we explode it because
     //   typescript can't tell that draftPreview is truthy otherwise
+    // Avoiding touching logic to fix linting
+    /* eslint-disable no-nested-ternary */
     const text =
       shouldShowDraft && draftPreview
         ? draftPreview
@@ -225,8 +227,8 @@ export class ConversationListItem extends React.PureComponent<Props> {
               ) : null}
               <MessageBody
                 text={text.split('\n')[0]}
-                disableJumbomoji={true}
-                disableLinks={true}
+                disableJumbomoji
+                disableLinks
                 i18n={i18n}
               />
             </>
@@ -243,13 +245,15 @@ export class ConversationListItem extends React.PureComponent<Props> {
       </div>
     );
   }
+  /* eslint-enable no-nested-ternary */
 
-  public render() {
+  public render(): JSX.Element {
     const { unreadCount, onClick, id, isSelected, style } = this.props;
     const withUnread = isNumber(unreadCount) && unreadCount > 0;
 
     return (
       <button
+        type="button"
         onClick={() => {
           if (onClick) {
             onClick(id);

ts/components/Countdown.tsx

@@ -1,5 +1,4 @@
 import React from 'react';
-// import classNames from 'classnames';
 
 export interface Props {
   duration: number;
@@ -24,19 +23,19 @@ export class Countdown extends React.Component<Props, State> {
     this.state = { ratio };
   }
 
-  public componentDidMount() {
+  public componentDidMount(): void {
     this.startLoop();
   }
 
-  public componentDidUpdate() {
+  public componentDidUpdate(): void {
     this.startLoop();
   }
 
-  public componentWillUnmount() {
+  public componentWillUnmount(): void {
     this.stopLoop();
   }
 
-  public startLoop() {
+  public startLoop(): void {
     if (this.looping) {
       return;
     }
@@ -45,11 +44,11 @@ export class Countdown extends React.Component<Props, State> {
     requestAnimationFrame(this.loop);
   }
 
-  public stopLoop() {
+  public stopLoop(): void {
     this.looping = false;
   }
 
-  public loop = () => {
+  public loop = (): void => {
     const { onComplete, duration, expiresAt } = this.props;
     if (!this.looping) {
       return;
@@ -68,7 +67,7 @@ export class Countdown extends React.Component<Props, State> {
     }
   };
 
-  public render() {
+  public render(): JSX.Element {
     const { ratio } = this.state;
     const strokeDashoffset = ratio * CIRCUMFERENCE;
 

ts/components/ExpiredBuildDialog.stories.tsx

@@ -1,14 +1,11 @@
 import * as React from 'react';
-import { ExpiredBuildDialog } from './ExpiredBuildDialog';
-
-// @ts-ignore
-import { setup as setupI18n } from '../../js/modules/i18n';
-// @ts-ignore
-import enMessages from '../../_locales/en/messages.json';
-
 import { storiesOf } from '@storybook/react';
 import { boolean } from '@storybook/addon-knobs';
 
+import { ExpiredBuildDialog } from './ExpiredBuildDialog';
+import { setup as setupI18n } from '../../js/modules/i18n';
+import enMessages from '../../_locales/en/messages.json';
+
 const i18n = setupI18n('en', enMessages);
 
 storiesOf('Components/ExpiredBuildDialog', module).add(

ts/components/ExpiredBuildDialog.tsx

@@ -26,7 +26,9 @@ export const ExpiredBuildDialog = ({
           tabIndex={-1}
           target="_blank"
         >
-          <button className="upgrade">{i18n('upgrade')}</button>
+          <button type="button" className="upgrade">
+            {i18n('upgrade')}
+          </button>
         </a>
       </div>
     </div>

ts/components/InContactsIcon.stories.tsx

@@ -2,11 +2,8 @@ import * as React from 'react';
 
 import { storiesOf } from '@storybook/react';
 
-// @ts-ignore
 import { setup as setupI18n } from '../../js/modules/i18n';
-// @ts-ignore
-import enMessages from '../../\_locales/en/messages.json';
-
+import enMessages from '../../_locales/en/messages.json';
 import { InContactsIcon } from './InContactsIcon';
 
 const i18n = setupI18n('en', enMessages);

ts/components/InContactsIcon.tsx

@@ -10,6 +10,7 @@ type PropsType = {
 export const InContactsIcon = (props: PropsType): JSX.Element => {
   const { i18n } = props;
 
+  /* eslint-disable jsx-a11y/no-noninteractive-tabindex */
   return (
     <Tooltip
       tagName="span"
@@ -28,4 +29,5 @@ export const InContactsIcon = (props: PropsType): JSX.Element => {
       />
     </Tooltip>
   );
+  /* eslint-enable jsx-a11y/no-noninteractive-tabindex */
 };

ts/components/IncomingCallBar.stories.tsx

@@ -1,16 +1,13 @@
 import * as React from 'react';
-import { IncomingCallBar } from './IncomingCallBar';
-import { Colors, ColorType } from '../types/Colors';
-
-// @ts-ignore
-import { setup as setupI18n } from '../../js/modules/i18n';
-// @ts-ignore
-import enMessages from '../../_locales/en/messages.json';
-
 import { storiesOf } from '@storybook/react';
 import { boolean, select, text } from '@storybook/addon-knobs';
 import { action } from '@storybook/addon-actions';
 
+import { IncomingCallBar } from './IncomingCallBar';
+import { Colors, ColorType } from '../types/Colors';
+import { setup as setupI18n } from '../../js/modules/i18n';
+import enMessages from '../../_locales/en/messages.json';
+
 const i18n = setupI18n('en', enMessages);
 
 const defaultProps = {

ts/components/IncomingCallBar.tsx

@@ -34,6 +34,7 @@ const CallButton = ({
       className={`module-incoming-call__icon module-incoming-call__button--${classSuffix}`}
       onClick={onClick}
       tabIndex={tabIndex}
+      type="button"
     >
       <Tooltip
         arrowSize={6}
@@ -48,7 +49,6 @@ const CallButton = ({
   );
 };
 
-// tslint:disable-next-line max-func-body-length
 export const IncomingCallBar = ({
   acceptCall,
   callDetails,

ts/components/Intl.stories.tsx

@@ -4,10 +4,7 @@ import { text } from '@storybook/addon-knobs';
 import { storiesOf } from '@storybook/react';
 
 import { Intl, Props } from './Intl';
-
-// @ts-ignore
 import { setup as setupI18n } from '../../js/modules/i18n';
-// @ts-ignore
 import enMessages from '../../_locales/en/messages.json';
 
 const i18n = setupI18n('en', enMessages);
@@ -40,7 +37,11 @@ story.add('Single String Replacement', () => {
 story.add('Single Tag Replacement', () => {
   const props = createProps({
     id: 'leftTheGroup',
-    components: [<button key="a-button">Theodora</button>],
+    components: [
+      <button type="button" key="a-button">
+        Theodora
+      </button>,
+    ],
   });
 
   return <Intl {...props} />;

ts/components/Intl.tsx

@@ -24,25 +24,23 @@ export class Intl extends React.Component<Props> {
     index: number,
     placeholderName: string,
     key: number
-  ): FullJSXType | undefined {
+  ): FullJSXType | null {
     const { id, components } = this.props;
 
     if (!components) {
-      // tslint:disable-next-line no-console
-      console.log(
+      window.log.error(
         `Error: Intl component prop not provided; Metadata: id '${id}', index ${index}, placeholder '${placeholderName}'`
       );
-      return;
+      return null;
     }
 
     if (Array.isArray(components)) {
       if (!components || !components.length || components.length <= index) {
-        // tslint:disable-next-line no-console
-        console.log(
+        window.log.error(
           `Error: Intl missing provided component for id '${id}', index ${index}`
         );
 
-        return;
+        return null;
       }
 
       return <React.Fragment key={key}>{components[index]}</React.Fragment>;
@@ -50,28 +48,30 @@ export class Intl extends React.Component<Props> {
 
     const value = components[placeholderName];
     if (!value) {
-      // tslint:disable-next-line no-console
-      console.log(
+      window.log.error(
         `Error: Intl missing provided component for id '${id}', placeholder '${placeholderName}'`
       );
 
-      return;
+      return null;
     }
 
     return <React.Fragment key={key}>{value}</React.Fragment>;
   }
 
+  // eslint-disable-next-line @typescript-eslint/explicit-module-boundary-types
   public render() {
     const { components, id, i18n, renderText } = this.props;
 
     const text = i18n(id);
-    const results: Array<any> = [];
+    const results: Array<
+      string | JSX.Element | Array<string | JSX.Element> | null
+    > = [];
     const FIND_REPLACEMENTS = /\$([^$]+)\$/g;
 
     // We have to do this, because renderText is not required in our Props object,
     //   but it is always provided via defaultProps.
     if (!renderText) {
-      return;
+      return null;
     }
 
     if (Array.isArray(components) && components.length > 1) {
@@ -92,7 +92,7 @@ export class Intl extends React.Component<Props> {
     while (match) {
       if (lastTextIndex < match.index) {
         const textWithNoReplacements = text.slice(lastTextIndex, match.index);
-        results.push(renderText({ text: textWithNoReplacements, key: key }));
+        results.push(renderText({ text: textWithNoReplacements, key }));
         key += 1;
       }
 
@@ -101,13 +101,12 @@ export class Intl extends React.Component<Props> {
       componentIndex += 1;
       key += 1;
 
-      // @ts-ignore
       lastTextIndex = FIND_REPLACEMENTS.lastIndex;
       match = FIND_REPLACEMENTS.exec(text);
     }
 
     if (lastTextIndex < text.length) {
-      results.push(renderText({ text: text.slice(lastTextIndex), key: key }));
+      results.push(renderText({ text: text.slice(lastTextIndex), key }));
       key += 1;
     }
 

ts/components/LeftPane.stories.tsx

@@ -6,11 +6,9 @@ import { storiesOf } from '@storybook/react';
 
 import { LeftPane, PropsType } from './LeftPane';
 import { PropsData } from './ConversationListItem';
-
-// @ts-ignore
 import { setup as setupI18n } from '../../js/modules/i18n';
-// @ts-ignore
 import enMessages from '../../_locales/en/messages.json';
+
 const i18n = setupI18n('en', enMessages);
 
 const story = storiesOf('Components/LeftPane', module);

ts/components/LeftPane.tsx

@@ -1,5 +1,5 @@
 import Measure, { BoundingRect, MeasuredComponentProps } from 'react-measure';
-import React from 'react';
+import React, { CSSProperties } from 'react';
 import { List } from 'react-virtualized';
 import { debounce, get } from 'lodash';
 
@@ -47,14 +47,17 @@ type RowRendererParamsType = {
   isScrolling: boolean;
   isVisible: boolean;
   key: string;
-  parent: Object;
-  style: Object;
+  parent: Record<string, unknown>;
+  style: CSSProperties;
 };
 
 export class LeftPane extends React.Component<PropsType> {
-  public listRef = React.createRef<any>();
+  public listRef = React.createRef<List>();
+
   public containerRef = React.createRef<HTMLDivElement>();
+
   public setFocusToFirstNeeded = false;
+
   public setFocusToLastNeeded = false;
 
   public renderRow = ({
@@ -103,7 +106,7 @@ export class LeftPane extends React.Component<PropsType> {
     style,
   }: {
     key: string;
-    style: Object;
+    style: CSSProperties;
   }): JSX.Element => {
     const {
       archivedConversations,
@@ -123,6 +126,7 @@ export class LeftPane extends React.Component<PropsType> {
         className="module-left-pane__archived-button"
         style={style}
         onClick={showArchivedConversations}
+        type="button"
       >
         {i18n('archivedConversations')}{' '}
         <span className="module-left-pane__archived-button__archived-count">
@@ -132,7 +136,7 @@ export class LeftPane extends React.Component<PropsType> {
     );
   };
 
-  public handleKeyDown = (event: React.KeyboardEvent<HTMLDivElement>) => {
+  public handleKeyDown = (event: React.KeyboardEvent<HTMLDivElement>): void => {
     const commandKey = get(window, 'platform') === 'darwin' && event.metaKey;
     const controlKey = get(window, 'platform') !== 'darwin' && event.ctrlKey;
     const commandOrCtrl = commandKey || controlKey;
@@ -154,12 +158,10 @@ export class LeftPane extends React.Component<PropsType> {
 
       event.preventDefault();
       event.stopPropagation();
-
-      return;
     }
   };
 
-  public handleFocus = () => {
+  public handleFocus = (): void => {
     const { selectedConversationId } = this.props;
     const { current: container } = this.containerRef;
 
@@ -174,10 +176,9 @@ export class LeftPane extends React.Component<PropsType> {
           /["\\]/g,
           '\\$&'
         );
-        // tslint:disable-next-line no-unnecessary-type-assertion
-        const target = scrollingContainer.querySelector(
+        const target: HTMLElement | null = scrollingContainer.querySelector(
           `.module-conversation-list-item[data-id="${escapedId}"]`
-        ) as any;
+        );
 
         if (target && target.focus) {
           target.focus();
@@ -190,7 +191,7 @@ export class LeftPane extends React.Component<PropsType> {
     }
   };
 
-  public scrollToRow = (row: number) => {
+  public scrollToRow = (row: number): void => {
     if (!this.listRef || !this.listRef.current) {
       return;
     }
@@ -198,40 +199,39 @@ export class LeftPane extends React.Component<PropsType> {
     this.listRef.current.scrollToRow(row);
   };
 
-  public getScrollContainer = () => {
+  public getScrollContainer = (): HTMLDivElement | null => {
     if (!this.listRef || !this.listRef.current) {
-      return;
+      return null;
     }
 
     const list = this.listRef.current;
 
-    if (!list.Grid || !list.Grid._scrollingContainer) {
-      return;
+    // TODO: DESKTOP-689
+    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    const grid: any = list.Grid;
+    if (!grid || !grid._scrollingContainer) {
+      return null;
     }
 
-    return list.Grid._scrollingContainer as HTMLDivElement;
+    return grid._scrollingContainer as HTMLDivElement;
   };
 
-  public setFocusToFirst = () => {
+  public setFocusToFirst = (): void => {
     const scrollContainer = this.getScrollContainer();
     if (!scrollContainer) {
       return;
     }
 
-    // tslint:disable-next-line no-unnecessary-type-assertion
-    const item = scrollContainer.querySelector(
+    const item: HTMLElement | null = scrollContainer.querySelector(
       '.module-conversation-list-item'
-    ) as any;
+    );
     if (item && item.focus) {
       item.focus();
-
-      return;
     }
   };
 
-  // tslint:disable-next-line member-ordering
   public onScroll = debounce(
-    () => {
+    (): void => {
       if (this.setFocusToFirstNeeded) {
         this.setFocusToFirstNeeded = false;
         this.setFocusToFirst();
@@ -244,26 +244,22 @@ export class LeftPane extends React.Component<PropsType> {
           return;
         }
 
-        // tslint:disable-next-line no-unnecessary-type-assertion
-        const button = scrollContainer.querySelector(
+        const button: HTMLElement | null = scrollContainer.querySelector(
           '.module-left-pane__archived-button'
-        ) as any;
+        );
         if (button && button.focus) {
           button.focus();
 
           return;
         }
-        // tslint:disable-next-line no-unnecessary-type-assertion
-        const items = scrollContainer.querySelectorAll(
+        const items: NodeListOf<HTMLElement> = scrollContainer.querySelectorAll(
           '.module-conversation-list-item'
-        ) as any;
+        );
         if (items && items.length > 0) {
           const last = items[items.length - 1];
 
           if (last && last.focus) {
             last.focus();
-
-            return;
           }
         }
       }
@@ -272,7 +268,7 @@ export class LeftPane extends React.Component<PropsType> {
     { maxWait: 100 }
   );
 
-  public getLength = () => {
+  public getLength = (): number => {
     const { archivedConversations, conversations, showArchived } = this.props;
 
     if (!conversations || !archivedConversations) {
@@ -339,7 +335,7 @@ export class LeftPane extends React.Component<PropsType> {
         onFocus={this.handleFocus}
         onKeyDown={this.handleKeyDown}
         ref={this.containerRef}
-        role="group"
+        role="presentation"
         tabIndex={-1}
       >
         <List
@@ -367,6 +363,8 @@ export class LeftPane extends React.Component<PropsType> {
           onClick={showInbox}
           className="module-left-pane__to-inbox-button"
           title={i18n('backToInbox')}
+          aria-label={i18n('backToInbox')}
+          type="button"
         />
         <div className="module-left-pane__archive-header-text">
           {i18n('archivedConversations')}
@@ -386,7 +384,8 @@ export class LeftPane extends React.Component<PropsType> {
       showArchived,
     } = this.props;
 
-    /* tslint:disable no-non-null-assertion */
+    // Relying on 3rd party code for contentRect.bounds
+    /* eslint-disable @typescript-eslint/no-non-null-assertion */
     return (
       <div className="module-left-pane">
         <div className="module-left-pane__header">
@@ -401,7 +400,7 @@ export class LeftPane extends React.Component<PropsType> {
             {i18n('archiveHelperText')}
           </div>
         )}
-        <Measure bounds={true}>
+        <Measure bounds>
           {({ contentRect, measureRef }: MeasuredComponentProps) => (
             <div className="module-left-pane__list--measure" ref={measureRef}>
               <div className="module-left-pane__list--wrapper">

ts/components/Lightbox.stories.tsx

@@ -12,11 +12,9 @@ import {
   VIDEO_MP4,
   VIDEO_QUICKTIME,
 } from '../types/MIME';
-
-// @ts-ignore
 import { setup as setupI18n } from '../../js/modules/i18n';
-// @ts-ignore
 import enMessages from '../../_locales/en/messages.json';
+
 const i18n = setupI18n('en', enMessages);
 
 const story = storiesOf('Components/Lightbox', module);

ts/components/Lightbox.tsx

@@ -1,5 +1,3 @@
-// tslint:disable:react-a11y-anchors
-
 import React from 'react';
 
 import classNames from 'classnames';
@@ -52,6 +50,14 @@ const styles = {
     bottom: 0,
     backgroundColor: 'rgba(0, 0, 0, 0.9)',
   } as React.CSSProperties,
+  buttonContainer: {
+    backgroundColor: 'transparent',
+    border: 'none',
+    display: 'flex',
+    flexDirection: 'column',
+    outline: 'none',
+    padding: 0,
+  } as React.CSSProperties,
   mainContainer: {
     display: 'flex',
     flexDirection: 'row',
@@ -129,7 +135,7 @@ const styles = {
     letterSpacing: '0px',
     lineHeight: '18px',
     // This cast is necessary or typescript chokes
-    textAlign: 'center' as 'center',
+    textAlign: 'center' as const,
     padding: '6px',
     paddingLeft: '18px',
     paddingRight: '18px',
@@ -137,12 +143,13 @@ const styles = {
 };
 
 interface IconButtonProps {
+  i18n: LocalizerType;
   onClick?: () => void;
   style?: React.CSSProperties;
   type: 'save' | 'close' | 'previous' | 'next';
 }
 
-const IconButton = ({ onClick, style, type }: IconButtonProps) => {
+const IconButton = ({ i18n, onClick, style, type }: IconButtonProps) => {
   const clickHandler = (event: React.MouseEvent<HTMLButtonElement>): void => {
     event.preventDefault();
     if (!onClick) {
@@ -157,6 +164,8 @@ const IconButton = ({ onClick, style, type }: IconButtonProps) => {
       onClick={clickHandler}
       className={classNames('iconButton', type)}
       style={style}
+      aria-label={i18n(type)}
+      type="button"
     />
   );
 };
@@ -166,10 +175,12 @@ const IconButtonPlaceholder = () => (
 );
 
 const Icon = ({
+  i18n,
   onClick,
   url,
 }: {
-  onClick?: (event: React.MouseEvent<HTMLButtonElement>) => void;
+  i18n: LocalizerType;
+  onClick: (event: React.MouseEvent<HTMLButtonElement>) => void;
   url: string;
 }) => (
   <button
@@ -179,19 +190,22 @@ const Icon = ({
       maxWidth: 200,
     }}
     onClick={onClick}
+    aria-label={i18n('unsupportedAttachment')}
+    type="button"
   />
 );
 
 export class Lightbox extends React.Component<Props, State> {
   public readonly containerRef = React.createRef<HTMLDivElement>();
+
   public readonly videoRef = React.createRef<HTMLVideoElement>();
+
   public readonly focusRef = React.createRef<HTMLDivElement>();
-  public previousFocus: any;
 
-  public state: State = {};
+  public previousFocus: HTMLElement | null = null;
 
-  public componentDidMount() {
-    this.previousFocus = document.activeElement;
+  public componentDidMount(): void {
+    this.previousFocus = document.activeElement as HTMLElement;
 
     const { isViewOnce } = this.props;
 
@@ -214,7 +228,7 @@ export class Lightbox extends React.Component<Props, State> {
     });
   }
 
-  public componentWillUnmount() {
+  public componentWillUnmount(): void {
     if (this.previousFocus && this.previousFocus.focus) {
       this.previousFocus.focus();
     }
@@ -230,34 +244,33 @@ export class Lightbox extends React.Component<Props, State> {
     }
   }
 
-  public getVideo() {
+  public getVideo(): HTMLVideoElement | null {
     if (!this.videoRef) {
-      return;
+      return null;
     }
 
     const { current } = this.videoRef;
     if (!current) {
-      return;
+      return null;
     }
 
     return current;
   }
 
-  public playVideo() {
+  public playVideo(): void {
     const video = this.getVideo();
     if (!video) {
       return;
     }
 
     if (video.paused) {
-      // tslint:disable-next-line no-floating-promises
       video.play();
     } else {
       video.pause();
     }
   }
 
-  public render() {
+  public render(): JSX.Element {
     const {
       caption,
       contentType,
@@ -275,8 +288,9 @@ export class Lightbox extends React.Component<Props, State> {
         className="module-lightbox"
         style={styles.container}
         onClick={this.onContainerClick}
+        onKeyUp={this.onContainerKeyUp}
         ref={this.containerRef}
-        role="dialog"
+        role="presentation"
       >
         <div style={styles.mainContainer} tabIndex={-1} ref={this.focusRef}>
           <div style={styles.controlsOffsetPlaceholder} />
@@ -287,9 +301,10 @@ export class Lightbox extends React.Component<Props, State> {
             {caption ? <div style={styles.caption}>{caption}</div> : null}
           </div>
           <div style={styles.controls}>
-            <IconButton type="close" onClick={this.onClose} />
+            <IconButton i18n={i18n} type="close" onClick={this.onClose} />
             {onSave ? (
               <IconButton
+                i18n={i18n}
                 type="save"
                 onClick={onSave}
                 style={styles.saveButton}
@@ -304,12 +319,12 @@ export class Lightbox extends React.Component<Props, State> {
         ) : (
           <div style={styles.navigationContainer}>
             {onPrevious ? (
-              <IconButton type="previous" onClick={onPrevious} />
+              <IconButton i18n={i18n} type="previous" onClick={onPrevious} />
             ) : (
               <IconButtonPlaceholder />
             )}
             {onNext ? (
-              <IconButton type="next" onClick={onNext} />
+              <IconButton i18n={i18n} type="next" onClick={onNext} />
             ) : (
               <IconButtonPlaceholder />
             )}
@@ -333,12 +348,17 @@ export class Lightbox extends React.Component<Props, State> {
     const isImageTypeSupported = GoogleChrome.isImageTypeSupported(contentType);
     if (isImageTypeSupported) {
       return (
-        <img
-          alt={i18n('lightboxImageAlt')}
-          style={styles.object}
-          src={objectURL}
+        <button
+          type="button"
+          style={styles.buttonContainer}
           onClick={this.onObjectClick}
-        />
+        >
+          <img
+            alt={i18n('lightboxImageAlt')}
+            style={styles.object}
+            src={objectURL}
+          />
+        </button>
       );
     }
 
@@ -366,13 +386,14 @@ export class Lightbox extends React.Component<Props, State> {
         ? 'images/movie.svg'
         : 'images/image.svg';
 
-      return <Icon url={iconUrl} onClick={this.onObjectClick} />;
+      return <Icon i18n={i18n} url={iconUrl} onClick={this.onObjectClick} />;
     }
 
-    // tslint:disable-next-line no-console
-    console.log('Lightbox: Unexpected content type', { contentType });
+    window.log.info('Lightbox: Unexpected content type', { contentType });
 
-    return <Icon onClick={this.onObjectClick} url="images/file.svg" />;
+    return (
+      <Icon i18n={i18n} onClick={this.onObjectClick} url="images/file.svg" />
+    );
   };
 
   private readonly onClose = () => {
@@ -436,8 +457,21 @@ export class Lightbox extends React.Component<Props, State> {
     this.onClose();
   };
 
+  private readonly onContainerKeyUp = (
+    event: React.KeyboardEvent<HTMLDivElement>
+  ) => {
+    if (
+      (this.containerRef && event.target !== this.containerRef.current) ||
+      event.keyCode !== 27
+    ) {
+      return;
+    }
+
+    this.onClose();
+  };
+
   private readonly onObjectClick = (
-    event: React.MouseEvent<HTMLButtonElement | HTMLImageElement>
+    event: React.MouseEvent<HTMLAnchorElement | HTMLButtonElement>
   ) => {
     event.stopPropagation();
     this.onClose();

ts/components/LightboxGallery.stories.tsx

@@ -1,16 +1,14 @@
 import * as React from 'react';
 
 import { storiesOf } from '@storybook/react';
-
-import { LightboxGallery, Props } from './LightboxGallery';
-
-// @ts-ignore
-import { setup as setupI18n } from '../../js/modules/i18n';
-// @ts-ignore
-import enMessages from '../../_locales/en/messages.json';
 import { action } from '@storybook/addon-actions';
 import { number } from '@storybook/addon-knobs';
+
+import { LightboxGallery, Props } from './LightboxGallery';
+import { setup as setupI18n } from '../../js/modules/i18n';
+import enMessages from '../../_locales/en/messages.json';
 import { IMAGE_JPEG, VIDEO_MP4 } from '../types/MIME';
+
 const i18n = setupI18n('en', enMessages);
 
 const story = storiesOf('Components/LightboxGallery', module);

ts/components/LightboxGallery.tsx

@@ -1,6 +1,3 @@
-/**
- * @prettier
- */
 import React from 'react';
 
 import * as MIME from '../types/MIME';
@@ -44,11 +41,11 @@ export class LightboxGallery extends React.Component<Props, State> {
     super(props);
 
     this.state = {
-      selectedIndex: this.props.selectedIndex,
+      selectedIndex: props.selectedIndex,
     };
   }
 
-  public render() {
+  public render(): JSX.Element {
     const { close, media, onSave, i18n } = this.props;
     const { selectedIndex } = this.state;
 

ts/components/MainHeader.stories.tsx

@@ -3,11 +3,8 @@ import { storiesOf } from '@storybook/react';
 import { text, withKnobs } from '@storybook/addon-knobs';
 import { action } from '@storybook/addon-actions';
 
-// @ts-ignore
 import { setup as setupI18n } from '../../js/modules/i18n';
-// @ts-ignore
 import enMessages from '../../_locales/en/messages.json';
-
 import { MainHeader, PropsType } from './MainHeader';
 
 const i18n = setupI18n('en', enMessages);
@@ -19,6 +16,8 @@ const requiredText = (name: string, value: string | undefined) =>
 const optionalText = (name: string, value: string | undefined) =>
   text(name, value || '') || undefined;
 
+// Storybook types are incorrect
+// eslint-disable-next-line @typescript-eslint/no-explicit-any
 story.addDecorator((withKnobs as any)({ escapeHTML: false }));
 
 const createProps = (overrideProps: Partial<PropsType> = {}): PropsType => ({

ts/components/MainHeader.tsx

@@ -76,7 +76,7 @@ export class MainHeader extends React.Component<PropsType, StateType> {
     };
   }
 
-  public componentDidUpdate(prevProps: PropsType) {
+  public componentDidUpdate(prevProps: PropsType): void {
     const { searchConversationId, startSearchCounter } = this.props;
 
     // When user chooses to search in a given conversation we focus the field for them
@@ -92,7 +92,7 @@ export class MainHeader extends React.Component<PropsType, StateType> {
     }
   }
 
-  public handleOutsideClick = ({ target }: MouseEvent) => {
+  public handleOutsideClick = ({ target }: MouseEvent): void => {
     const { popperRoot, showingAvatarPopup } = this.state;
 
     if (
@@ -104,13 +104,13 @@ export class MainHeader extends React.Component<PropsType, StateType> {
     }
   };
 
-  public handleOutsideKeyDown = (event: KeyboardEvent) => {
+  public handleOutsideKeyDown = (event: KeyboardEvent): void => {
     if (event.key === 'Escape') {
       this.hideAvatarPopup();
     }
   };
 
-  public showAvatarPopup = () => {
+  public showAvatarPopup = (): void => {
     const popperRoot = document.createElement('div');
     document.body.appendChild(popperRoot);
 
@@ -122,7 +122,7 @@ export class MainHeader extends React.Component<PropsType, StateType> {
     document.addEventListener('keydown', this.handleOutsideKeyDown);
   };
 
-  public hideAvatarPopup = () => {
+  public hideAvatarPopup = (): void => {
     const { popperRoot } = this.state;
 
     document.removeEventListener('click', this.handleOutsideClick);
@@ -138,7 +138,7 @@ export class MainHeader extends React.Component<PropsType, StateType> {
     }
   };
 
-  public componentWillUnmount() {
+  public componentWillUnmount(): void {
     const { popperRoot } = this.state;
 
     document.removeEventListener('click', this.handleOutsideClick);
@@ -149,8 +149,7 @@ export class MainHeader extends React.Component<PropsType, StateType> {
     }
   }
 
-  // tslint:disable-next-line member-ordering
-  public search = debounce((searchTerm: string) => {
+  public search = debounce((searchTerm: string): void => {
     const {
       i18n,
       ourConversationId,
@@ -179,7 +178,7 @@ export class MainHeader extends React.Component<PropsType, StateType> {
     }
   }, 200);
 
-  public updateSearch = (event: React.FormEvent<HTMLInputElement>) => {
+  public updateSearch = (event: React.FormEvent<HTMLInputElement>): void => {
     const {
       updateSearchTerm,
       clearConversationSearch,
@@ -209,21 +208,23 @@ export class MainHeader extends React.Component<PropsType, StateType> {
     this.search(searchTerm);
   };
 
-  public clearSearch = () => {
+  public clearSearch = (): void => {
     const { clearSearch } = this.props;
 
     clearSearch();
     this.setFocus();
   };
 
-  public clearConversationSearch = () => {
+  public clearConversationSearch = (): void => {
     const { clearConversationSearch } = this.props;
 
     clearConversationSearch();
     this.setFocus();
   };
 
-  public handleKeyDown = (event: React.KeyboardEvent<HTMLInputElement>) => {
+  public handleKeyDown = (
+    event: React.KeyboardEvent<HTMLInputElement>
+  ): void => {
     const {
       clearConversationSearch,
       clearSearch,
@@ -258,7 +259,7 @@ export class MainHeader extends React.Component<PropsType, StateType> {
     event.stopPropagation();
   };
 
-  public handleXButton = () => {
+  public handleXButton = (): void => {
     const {
       searchConversationId,
       clearConversationSearch,
@@ -274,22 +275,19 @@ export class MainHeader extends React.Component<PropsType, StateType> {
     this.setFocus();
   };
 
-  public setFocus = () => {
+  public setFocus = (): void => {
     if (this.inputRef.current) {
-      // @ts-ignore
       this.inputRef.current.focus();
     }
   };
 
-  public setSelected = () => {
+  public setSelected = (): void => {
     if (this.inputRef.current) {
-      // @ts-ignore
       this.inputRef.current.select();
     }
   };
 
-  // tslint:disable-next-line:max-func-body-length
-  public render() {
+  public render(): JSX.Element {
     const {
       avatarPath,
       color,
@@ -366,6 +364,8 @@ export class MainHeader extends React.Component<PropsType, StateType> {
               className="module-main-header__search__in-conversation-pill"
               onClick={this.clearSearch}
               tabIndex={-1}
+              type="button"
+              aria-label={i18n('clearSearch')}
             >
               <div className="module-main-header__search__in-conversation-pill__avatar-container">
                 <div className="module-main-header__search__in-conversation-pill__avatar" />
@@ -377,6 +377,8 @@ export class MainHeader extends React.Component<PropsType, StateType> {
               className="module-main-header__search__icon"
               onClick={this.setFocus}
               tabIndex={-1}
+              type="button"
+              aria-label={i18n('search')}
             />
           )}
           <input
@@ -402,6 +404,8 @@ export class MainHeader extends React.Component<PropsType, StateType> {
               tabIndex={-1}
               className="module-main-header__search__cancel-icon"
               onClick={this.handleXButton}
+              type="button"
+              aria-label={i18n('cancel')}
             />
           ) : null}
         </div>

ts/components/MessageBodyHighlight.stories.tsx

@@ -2,17 +2,16 @@ import * as React from 'react';
 import { storiesOf } from '@storybook/react';
 import { text, withKnobs } from '@storybook/addon-knobs';
 
-// @ts-ignore
 import { setup as setupI18n } from '../../js/modules/i18n';
-// @ts-ignore
 import enMessages from '../../_locales/en/messages.json';
-
 import { MessageBodyHighlight, Props } from './MessageBodyHighlight';
 
 const i18n = setupI18n('en', enMessages);
 
 const story = storiesOf('Components/MessageBodyHighlight', module);
 
+// Storybook types are incorrect
+// eslint-disable-next-line @typescript-eslint/no-explicit-any
 story.addDecorator((withKnobs as any)({ escapeHTML: false }));
 
 const createProps = (overrideProps: Partial<Props> = {}): Props => ({

ts/components/MessageBodyHighlight.tsx

@@ -38,9 +38,9 @@ const renderEmoji = ({
 );
 
 export class MessageBodyHighlight extends React.Component<Props> {
-  public render() {
+  public render(): JSX.Element | Array<JSX.Element> {
     const { text, i18n } = this.props;
-    const results: Array<any> = [];
+    const results: Array<JSX.Element> = [];
     const FIND_BEGIN_END = /<<left>>(.+?)<<right>>/g;
 
     let match = FIND_BEGIN_END.exec(text);
@@ -49,12 +49,7 @@ export class MessageBodyHighlight extends React.Component<Props> {
 
     if (!match) {
       return (
-        <MessageBody
-          disableJumbomoji={true}
-          disableLinks={true}
-          text={text}
-          i18n={i18n}
-        />
+        <MessageBody disableJumbomoji disableLinks text={text} i18n={i18n} />
       );
     }
 
@@ -63,11 +58,12 @@ export class MessageBodyHighlight extends React.Component<Props> {
     while (match) {
       if (last < match.index) {
         const beforeText = text.slice(last, match.index);
+        count += 1;
         results.push(
           renderEmoji({
             text: beforeText,
             sizeClass,
-            key: count++,
+            key: count,
             i18n,
             renderNonEmoji: renderNewLines,
           })
@@ -75,29 +71,30 @@ export class MessageBodyHighlight extends React.Component<Props> {
       }
 
       const [, toHighlight] = match;
+      count += 2;
       results.push(
-        <span className="module-message-body__highlight" key={count++}>
+        <span className="module-message-body__highlight" key={count - 1}>
           {renderEmoji({
             text: toHighlight,
             sizeClass,
-            key: count++,
+            key: count,
             i18n,
             renderNonEmoji: renderNewLines,
           })}
         </span>
       );
 
-      // @ts-ignore
       last = FIND_BEGIN_END.lastIndex;
       match = FIND_BEGIN_END.exec(text);
     }
 
     if (last < text.length) {
+      count += 1;
       results.push(
         renderEmoji({
           text: text.slice(last),
           sizeClass,
-          key: count++,
+          key: count,
           i18n,
           renderNonEmoji: renderNewLines,
         })

ts/components/MessageSearchResult.stories.tsx

@@ -1,18 +1,17 @@
 import * as React from 'react';
 import { storiesOf } from '@storybook/react';
 import { action } from '@storybook/addon-actions';
-
-// @ts-ignore
-import { setup as setupI18n } from '../../js/modules/i18n';
-// @ts-ignore
-import enMessages from '../../_locales/en/messages.json';
-
-import { MessageSearchResult, PropsType } from './MessageSearchResult';
 import { boolean, text, withKnobs } from '@storybook/addon-knobs';
 
+import { setup as setupI18n } from '../../js/modules/i18n';
+import enMessages from '../../_locales/en/messages.json';
+import { MessageSearchResult, PropsType } from './MessageSearchResult';
+
 const i18n = setupI18n('en', enMessages);
 const story = storiesOf('Components/MessageSearchResult', module);
 
+// Storybook types are incorrect
+// eslint-disable-next-line @typescript-eslint/no-explicit-any
 story.addDecorator((withKnobs as any)({ escapeHTML: false }));
 
 const someone = {
@@ -41,8 +40,8 @@ const createProps = (overrideProps: Partial<PropsType> = {}): PropsType => ({
     'snippet',
     overrideProps.snippet || "What's <<left>>going<<right>> on?"
   ),
-  from: overrideProps.from as any,
-  to: overrideProps.to as any,
+  from: overrideProps.from as PropsType['from'],
+  to: overrideProps.to as PropsType['to'],
   isSelected: boolean('isSelected', overrideProps.isSelected || false),
   openConversationInternal: action('openConversationInternal'),
   isSearchingInConversation: boolean(

ts/components/MessageSearchResult.tsx

@@ -50,7 +50,7 @@ type PropsHousekeepingType = {
 export type PropsType = PropsDataType & PropsHousekeepingType;
 
 export class MessageSearchResult extends React.PureComponent<PropsType> {
-  public renderFromName() {
+  public renderFromName(): JSX.Element {
     const { from, i18n, to } = this.props;
 
     if (from.isMe && to.isMe) {
@@ -80,7 +80,7 @@ export class MessageSearchResult extends React.PureComponent<PropsType> {
     );
   }
 
-  public renderFrom() {
+  public renderFrom(): JSX.Element {
     const { i18n, to, isSearchingInConversation } = this.props;
     const fromName = this.renderFromName();
 
@@ -108,7 +108,7 @@ export class MessageSearchResult extends React.PureComponent<PropsType> {
     );
   }
 
-  public renderAvatar() {
+  public renderAvatar(): JSX.Element {
     const { from, i18n, to } = this.props;
     const isNoteToSelf = from.isMe && to.isMe;
 
@@ -118,7 +118,7 @@ export class MessageSearchResult extends React.PureComponent<PropsType> {
         color={from.color}
         conversationType="direct"
         i18n={i18n}
-        name={name}
+        name={from.name}
         noteToSelf={isNoteToSelf}
         phoneNumber={from.phoneNumber}
         profileName={from.profileName}
@@ -128,7 +128,7 @@ export class MessageSearchResult extends React.PureComponent<PropsType> {
     );
   }
 
-  public render() {
+  public render(): JSX.Element | null {
     const {
       from,
       i18n,
@@ -157,6 +157,7 @@ export class MessageSearchResult extends React.PureComponent<PropsType> {
           isSelected ? 'module-message-search-result--is-selected' : null
         )}
         data-id={id}
+        type="button"
       >
         {this.renderAvatar()}
         <div className="module-message-search-result__text">

ts/components/NetworkStatus.stories.tsx

@@ -1,15 +1,12 @@
 import * as React from 'react';
-import { NetworkStatus } from './NetworkStatus';
-
-// @ts-ignore
-import { setup as setupI18n } from '../../js/modules/i18n';
-// @ts-ignore
-import enMessages from '../../_locales/en/messages.json';
-
 import { storiesOf } from '@storybook/react';
 import { boolean, select } from '@storybook/addon-knobs';
 import { action } from '@storybook/addon-actions';
 
+import { NetworkStatus } from './NetworkStatus';
+import { setup as setupI18n } from '../../js/modules/i18n';
+import enMessages from '../../_locales/en/messages.json';
+
 const i18n = setupI18n('en', enMessages);
 
 const defaultProps = {

ts/components/NetworkStatus.tsx

@@ -40,13 +40,13 @@ export const NetworkStatus = ({
   socketStatus,
   manualReconnect,
 }: PropsType): JSX.Element | null => {
-  if (!hasNetworkDialog) {
-    return null;
-  }
-
   const [isConnecting, setIsConnecting] = React.useState<boolean>(false);
   React.useEffect(() => {
-    let timeout: any;
+    if (!hasNetworkDialog) {
+      return () => null;
+    }
+
+    let timeout: NodeJS.Timeout;
 
     if (isConnecting) {
       timeout = setTimeout(() => {
@@ -59,7 +59,11 @@ export const NetworkStatus = ({
         clearTimeout(timeout);
       }
     };
-  }, [isConnecting, setIsConnecting]);
+  }, [hasNetworkDialog, isConnecting, setIsConnecting]);
+
+  if (!hasNetworkDialog) {
+    return null;
+  }
 
   const reconnect = () => {
     setIsConnecting(true);
@@ -68,7 +72,9 @@ export const NetworkStatus = ({
 
   const manualReconnectButton = (): JSX.Element => (
     <div className="module-left-pane-dialog__actions">
-      <button onClick={reconnect}>{i18n('connect')}</button>
+      <button onClick={reconnect} type="button">
+        {i18n('connect')}
+      </button>
     </div>
   );
 
@@ -77,7 +83,8 @@ export const NetworkStatus = ({
       subtext: i18n('connectingHangOn'),
       title: i18n('connecting'),
     });
-  } else if (!isOnline) {
+  }
+  if (!isOnline) {
     return renderDialog({
       renderActionableButton: manualReconnectButton,
       subtext: i18n('checkNetworkConnection'),

ts/components/RelinkDialog.stories.tsx

@@ -1,15 +1,12 @@
 import * as React from 'react';
-import { RelinkDialog } from './RelinkDialog';
-
-// @ts-ignore
-import { setup as setupI18n } from '../../js/modules/i18n';
-// @ts-ignore
-import enMessages from '../../_locales/en/messages.json';
-
 import { storiesOf } from '@storybook/react';
 import { boolean } from '@storybook/addon-knobs';
 import { action } from '@storybook/addon-actions';
 
+import { RelinkDialog } from './RelinkDialog';
+import { setup as setupI18n } from '../../js/modules/i18n';
+import enMessages from '../../_locales/en/messages.json';
+
 const i18n = setupI18n('en', enMessages);
 
 const defaultProps = {

ts/components/RelinkDialog.tsx

@@ -24,7 +24,9 @@ export const RelinkDialog = ({
         <span>{i18n('unlinkedWarning')}</span>
       </div>
       <div className="module-left-pane-dialog__actions">
-        <button onClick={relinkDevice}>{i18n('relink')}</button>
+        <button onClick={relinkDevice} type="button">
+          {i18n('relink')}
+        </button>
       </div>
     </div>
   );

ts/components/SafetyNumberChangeDialog.stories.tsx

@@ -1,15 +1,12 @@
 import * as React from 'react';
-import { SafetyNumberChangeDialog } from './SafetyNumberChangeDialog';
-import { ConversationType } from '../state/ducks/conversations';
-
-// @ts-ignore
-import { setup as setupI18n } from '../../js/modules/i18n';
-// @ts-ignore
-import enMessages from '../../_locales/en/messages.json';
-
 import { action } from '@storybook/addon-actions';
 import { storiesOf } from '@storybook/react';
 
+import { SafetyNumberChangeDialog } from './SafetyNumberChangeDialog';
+import { ConversationType } from '../state/ducks/conversations';
+import { setup as setupI18n } from '../../js/modules/i18n';
+import enMessages from '../../_locales/en/messages.json';
+
 const i18n = setupI18n('en', enMessages);
 
 const contactWithAllData = {

ts/components/SafetyNumberChangeDialog.tsx

@@ -39,7 +39,7 @@ const SafetyDialogContents = ({
     if (cancelButtonRef && cancelButtonRef.current) {
       cancelButtonRef.current.focus();
     }
-  }, [contacts]);
+  }, [cancelButtonRef, contacts]);
 
   return (
     <>
@@ -88,6 +88,7 @@ const SafetyDialogContents = ({
                   onView(contact);
                 }}
                 tabIndex={0}
+                type="button"
               >
                 {i18n('view')}
               </button>
@@ -101,6 +102,7 @@ const SafetyDialogContents = ({
           onClick={onCancel}
           ref={cancelButtonRef}
           tabIndex={0}
+          type="button"
         >
           {i18n('cancel')}
         </button>
@@ -108,6 +110,7 @@ const SafetyDialogContents = ({
           className="module-sfn-dialog__actions--confirm"
           onClick={onConfirm}
           tabIndex={0}
+          type="button"
         >
           {confirmText || i18n('sendMessageToContact')}
         </button>

ts/components/SafetyNumberViewer.stories.tsx

@@ -1,16 +1,13 @@
 import * as React from 'react';
-import { SafetyNumberViewer } from './SafetyNumberViewer';
-import { ConversationType } from '../state/ducks/conversations';
-
-// @ts-ignore
-import { setup as setupI18n } from '../../js/modules/i18n';
-// @ts-ignore
-import enMessages from '../../_locales/en/messages.json';
-
 import { action } from '@storybook/addon-actions';
 import { boolean, text } from '@storybook/addon-knobs';
 import { storiesOf } from '@storybook/react';
 
+import { SafetyNumberViewer } from './SafetyNumberViewer';
+import { ConversationType } from '../state/ducks/conversations';
+import { setup as setupI18n } from '../../js/modules/i18n';
+import enMessages from '../../_locales/en/messages.json';
+
 const i18n = setupI18n('en', enMessages);
 
 const contactWithAllData = {

ts/components/SafetyNumberViewer.tsx

@@ -25,14 +25,18 @@ export const SafetyNumberViewer = ({
   toggleVerified,
   verificationDisabled,
 }: SafetyNumberViewerProps): JSX.Element | null => {
+  React.useEffect(() => {
+    if (!contact) {
+      return;
+    }
+
+    generateSafetyNumber(contact);
+  }, [contact, generateSafetyNumber, safetyNumber]);
+
   if (!contact) {
     return null;
   }
 
-  React.useEffect(() => {
-    generateSafetyNumber(contact);
-  }, [safetyNumber]);
-
   const showNumber = Boolean(contact.name || contact.profileName);
   const numberFragment = showNumber ? ` · ${contact.phoneNumber}` : '';
   const name = `${contact.title}${numberFragment}`;
@@ -40,7 +44,7 @@ export const SafetyNumberViewer = ({
     <span className="module-safety-number__bold-name">{name}</span>
   );
 
-  const isVerified = contact.isVerified;
+  const { isVerified } = contact;
   const verifiedStatusKey = isVerified ? 'isVerified' : 'isNotVerified';
   const safetyNumberChangedKey = safetyNumberChanged
     ? 'changedRightAfterVerify'
@@ -51,7 +55,7 @@ export const SafetyNumberViewer = ({
     <div className="module-safety-number">
       {onClose && (
         <div className="module-safety-number__close-button">
-          <button onClick={onClose} tabIndex={0}>
+          <button onClick={onClose} tabIndex={0} type="button">
             <span />
           </button>
         </div>
@@ -86,6 +90,7 @@ export const SafetyNumberViewer = ({
             toggleVerified(contact);
           }}
           tabIndex={0}
+          type="button"
         >
           {verifyButtonText}
         </button>

ts/components/SearchResults.stories.tsx

@@ -1,19 +1,14 @@
 import * as React from 'react';
+import { storiesOf } from '@storybook/react';
+import { action } from '@storybook/addon-actions';
+
 import { SearchResults } from './SearchResults';
 import {
   MessageSearchResult,
   PropsDataType as MessageSearchResultPropsType,
 } from './MessageSearchResult';
-
-// @ts-ignore
 import { setup as setupI18n } from '../../js/modules/i18n';
-// @ts-ignore
 import enMessages from '../../_locales/en/messages.json';
-
-import { storiesOf } from '@storybook/react';
-//import { boolean, select } from '@storybook/addon-knobs';
-import { action } from '@storybook/addon-actions';
-
 import {
   gifUrl,
   landscapeGreenUrl,
@@ -25,17 +20,17 @@ const i18n = setupI18n('en', enMessages);
 
 const messageLookup: Map<string, MessageSearchResultPropsType> = new Map();
 
-const CONTACT = 'contact' as 'contact';
-const CONTACTS_HEADER = 'contacts-header' as 'contacts-header';
-const CONVERSATION = 'conversation' as 'conversation';
-const CONVERSATIONS_HEADER = 'conversations-header' as 'conversations-header';
-const DIRECT = 'direct' as 'direct';
-const GROUP = 'group' as 'group';
-const MESSAGE = 'message' as 'message';
-const MESSAGES_HEADER = 'messages-header' as 'messages-header';
-const SENT = 'sent' as 'sent';
-const START_NEW_CONVERSATION = 'start-new-conversation' as 'start-new-conversation';
-const SMS_MMS_NOT_SUPPORTED = 'sms-mms-not-supported-text' as 'sms-mms-not-supported-text';
+const CONTACT = 'contact' as const;
+const CONTACTS_HEADER = 'contacts-header' as const;
+const CONVERSATION = 'conversation' as const;
+const CONVERSATIONS_HEADER = 'conversations-header' as const;
+const DIRECT = 'direct' as const;
+const GROUP = 'group' as const;
+const MESSAGE = 'message' as const;
+const MESSAGES_HEADER = 'messages-header' as const;
+const SENT = 'sent' as const;
+const START_NEW_CONVERSATION = 'start-new-conversation' as const;
+const SMS_MMS_NOT_SUPPORTED = 'sms-mms-not-supported-text' as const;
 
 messageLookup.set('1-guid-guid-guid-guid-guid', {
   id: '1-guid-guid-guid-guid-guid',
@@ -152,7 +147,7 @@ const conversations = [
       name: 'Everyone 🌆',
       title: 'Everyone 🌆',
       type: GROUP,
-      color: 'signal-blue' as 'signal-blue',
+      color: 'signal-blue' as const,
       avatarPath: landscapeGreenUrl,
       isMe: false,
       lastUpdated: Date.now() - 5 * 60 * 1000,
@@ -171,7 +166,7 @@ const conversations = [
       phoneNumber: '(202) 555-0012',
       name: 'Everyone Else 🔥',
       title: 'Everyone Else 🔥',
-      color: 'pink' as 'pink',
+      color: 'pink' as const,
       type: DIRECT,
       avatarPath: landscapePurpleUrl,
       isMe: false,
@@ -194,7 +189,7 @@ const contacts = [
       phoneNumber: '(202) 555-0013',
       name: 'The one Everyone',
       title: 'The one Everyone',
-      color: 'blue' as 'blue',
+      color: 'blue' as const,
       type: DIRECT,
       avatarPath: gifUrl,
       isMe: false,
@@ -211,7 +206,7 @@ const contacts = [
       name: 'No likey everyone',
       title: 'No likey everyone',
       type: DIRECT,
-      color: 'red' as 'red',
+      color: 'red' as const,
       isMe: false,
       lastUpdated: Date.now() - 11 * 60 * 1000,
       unreadCount: 0,

ts/components/SearchResults.tsx

@@ -1,4 +1,4 @@
-import React from 'react';
+import React, { CSSProperties } from 'react';
 import { CellMeasurer, CellMeasurerCache, List } from 'react-virtualized';
 import { debounce, get, isNumber } from 'lodash';
 
@@ -98,8 +98,8 @@ type RowRendererParamsType = {
   isScrolling: boolean;
   isVisible: boolean;
   key: string;
-  parent: Object;
-  style: Object;
+  parent: Record<string, unknown>;
+  style: CSSProperties;
 };
 type OnScrollParamsType = {
   scrollTop: number;
@@ -117,24 +117,32 @@ type OnScrollParamsType = {
 
 export class SearchResults extends React.Component<PropsType, StateType> {
   public setFocusToFirstNeeded = false;
+
   public setFocusToLastNeeded = false;
+
   public cellSizeCache = new CellMeasurerCache({
     defaultHeight: 80,
     fixedWidth: true,
   });
-  public listRef = React.createRef<any>();
-  public containerRef = React.createRef<HTMLDivElement>();
-  public state = {
-    scrollToIndex: undefined,
-  };
 
-  public handleStartNewConversation = () => {
+  public listRef = React.createRef<List>();
+
+  public containerRef = React.createRef<HTMLDivElement>();
+
+  constructor(props: PropsType) {
+    super(props);
+    this.state = {
+      scrollToIndex: undefined,
+    };
+  }
+
+  public handleStartNewConversation = (): void => {
     const { regionCode, searchTerm, startNewConversation } = this.props;
 
     startNewConversation(searchTerm, { regionCode });
   };
 
-  public handleKeyDown = (event: React.KeyboardEvent<HTMLDivElement>) => {
+  public handleKeyDown = (event: React.KeyboardEvent<HTMLDivElement>): void => {
     const { items } = this.props;
     const commandKey = get(window, 'platform') === 'darwin' && event.metaKey;
     const controlKey = get(window, 'platform') !== 'darwin' && event.ctrlKey;
@@ -161,12 +169,10 @@ export class SearchResults extends React.Component<PropsType, StateType> {
 
       event.preventDefault();
       event.stopPropagation();
-
-      return;
     }
   };
 
-  public handleFocus = () => {
+  public handleFocus = (): void => {
     const { selectedConversationId, selectedMessageId } = this.props;
     const { current: container } = this.containerRef;
 
@@ -179,10 +185,9 @@ export class SearchResults extends React.Component<PropsType, StateType> {
 
       // First we try to scroll to the selected message
       if (selectedMessageId && scrollingContainer) {
-        // tslint:disable-next-line no-unnecessary-type-assertion
-        const target = scrollingContainer.querySelector(
+        const target: HTMLElement | null = scrollingContainer.querySelector(
           `.module-message-search-result[data-id="${selectedMessageId}"]`
-        ) as any;
+        );
 
         if (target && target.focus) {
           target.focus();
@@ -197,10 +202,9 @@ export class SearchResults extends React.Component<PropsType, StateType> {
           /["\\]/g,
           '\\$&'
         );
-        // tslint:disable-next-line no-unnecessary-type-assertion
-        const target = scrollingContainer.querySelector(
+        const target: HTMLElement | null = scrollingContainer.querySelector(
           `.module-conversation-list-item[data-id="${escapedId}"]`
-        ) as any;
+        );
 
         if (target && target.focus) {
           target.focus();
@@ -214,14 +218,13 @@ export class SearchResults extends React.Component<PropsType, StateType> {
     }
   };
 
-  public setFocusToFirst = () => {
+  public setFocusToFirst = (): void => {
     const { current: container } = this.containerRef;
 
     if (container) {
-      // tslint:disable-next-line no-unnecessary-type-assertion
-      const noResultsItem = container.querySelector(
+      const noResultsItem: HTMLElement | null = container.querySelector(
         '.module-search-results__no-results'
-      ) as any;
+      );
       if (noResultsItem && noResultsItem.focus) {
         noResultsItem.focus();
 
@@ -234,54 +237,51 @@ export class SearchResults extends React.Component<PropsType, StateType> {
       return;
     }
 
-    // tslint:disable-next-line no-unnecessary-type-assertion
-    const startItem = scrollContainer.querySelector(
+    const startItem: HTMLElement | null = scrollContainer.querySelector(
       '.module-start-new-conversation'
-    ) as any;
+    );
     if (startItem && startItem.focus) {
       startItem.focus();
 
       return;
     }
 
-    // tslint:disable-next-line no-unnecessary-type-assertion
-    const conversationItem = scrollContainer.querySelector(
+    const conversationItem: HTMLElement | null = scrollContainer.querySelector(
       '.module-conversation-list-item'
-    ) as any;
+    );
     if (conversationItem && conversationItem.focus) {
       conversationItem.focus();
 
       return;
     }
 
-    // tslint:disable-next-line no-unnecessary-type-assertion
-    const messageItem = scrollContainer.querySelector(
+    const messageItem: HTMLElement | null = scrollContainer.querySelector(
       '.module-message-search-result'
-    ) as any;
+    );
     if (messageItem && messageItem.focus) {
       messageItem.focus();
-
-      return;
     }
   };
 
-  public getScrollContainer = () => {
+  public getScrollContainer = (): HTMLDivElement | null => {
     if (!this.listRef || !this.listRef.current) {
-      return;
+      return null;
     }
 
     const list = this.listRef.current;
 
-    if (!list.Grid || !list.Grid._scrollingContainer) {
-      return;
+    // We're using an internal variable (_scrollingContainer)) here,
+    // so cannot rely on the public type.
+    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    const grid: any = list.Grid;
+    if (!grid || !grid._scrollingContainer) {
+      return null;
     }
 
-    return list.Grid._scrollingContainer as HTMLDivElement;
+    return grid._scrollingContainer as HTMLDivElement;
   };
 
-  // tslint:disable-next-line member-ordering
   public onScroll = debounce(
-    // tslint:disable-next-line cyclomatic-complexity
     (data: OnScrollParamsType) => {
       // Ignore scroll events generated as react-virtualized recursively scrolls and
       //   re-measures to get us where we want to go.
@@ -308,9 +308,9 @@ export class SearchResults extends React.Component<PropsType, StateType> {
           return;
         }
 
-        const messageItems = scrollContainer.querySelectorAll(
+        const messageItems: NodeListOf<HTMLElement> = scrollContainer.querySelectorAll(
           '.module-message-search-result'
-        ) as any;
+        );
         if (messageItems && messageItems.length > 0) {
           const last = messageItems[messageItems.length - 1];
 
@@ -321,9 +321,9 @@ export class SearchResults extends React.Component<PropsType, StateType> {
           }
         }
 
-        const contactItems = scrollContainer.querySelectorAll(
+        const contactItems: NodeListOf<HTMLElement> = scrollContainer.querySelectorAll(
           '.module-conversation-list-item'
-        ) as any;
+        );
         if (contactItems && contactItems.length > 0) {
           const last = contactItems[contactItems.length - 1];
 
@@ -336,14 +336,12 @@ export class SearchResults extends React.Component<PropsType, StateType> {
 
         const startItem = scrollContainer.querySelectorAll(
           '.module-start-new-conversation'
-        ) as any;
+        ) as NodeListOf<HTMLElement>;
         if (startItem && startItem.length > 0) {
           const last = startItem[startItem.length - 1];
 
           if (last && last.focus) {
             last.focus();
-
-            return;
           }
         }
       }
@@ -352,7 +350,7 @@ export class SearchResults extends React.Component<PropsType, StateType> {
     { maxWait: 100 }
   );
 
-  public renderRowContents(row: SearchResultRowType) {
+  public renderRowContents(row: SearchResultRowType): JSX.Element {
     const {
       searchTerm,
       i18n,
@@ -368,13 +366,15 @@ export class SearchResults extends React.Component<PropsType, StateType> {
           onClick={this.handleStartNewConversation}
         />
       );
-    } else if (row.type === 'sms-mms-not-supported-text') {
+    }
+    if (row.type === 'sms-mms-not-supported-text') {
       return (
         <div className="module-search-results__sms-not-supported">
           {i18n('notSupportedSMS')}
         </div>
       );
-    } else if (row.type === 'conversations-header') {
+    }
+    if (row.type === 'conversations-header') {
       return (
         <div
           className="module-search-results__conversations-header"
@@ -384,7 +384,8 @@ export class SearchResults extends React.Component<PropsType, StateType> {
           {i18n('conversationsHeader')}
         </div>
       );
-    } else if (row.type === 'conversation') {
+    }
+    if (row.type === 'conversation') {
       const { data } = row;
 
       return (
@@ -395,7 +396,8 @@ export class SearchResults extends React.Component<PropsType, StateType> {
           i18n={i18n}
         />
       );
-    } else if (row.type === 'contacts-header') {
+    }
+    if (row.type === 'contacts-header') {
       return (
         <div
           className="module-search-results__contacts-header"
@@ -405,7 +407,8 @@ export class SearchResults extends React.Component<PropsType, StateType> {
           {i18n('contactsHeader')}
         </div>
       );
-    } else if (row.type === 'contact') {
+    }
+    if (row.type === 'contact') {
       const { data } = row;
 
       return (
@@ -416,7 +419,8 @@ export class SearchResults extends React.Component<PropsType, StateType> {
           i18n={i18n}
         />
       );
-    } else if (row.type === 'messages-header') {
+    }
+    if (row.type === 'messages-header') {
       return (
         <div
           className="module-search-results__messages-header"
@@ -426,21 +430,22 @@ export class SearchResults extends React.Component<PropsType, StateType> {
           {i18n('messagesHeader')}
         </div>
       );
-    } else if (row.type === 'message') {
+    }
+    if (row.type === 'message') {
       const { data } = row;
 
       return renderMessageSearchResult(data);
-    } else if (row.type === 'spinner') {
+    }
+    if (row.type === 'spinner') {
       return (
         <div className="module-search-results__spinner-container">
           <Spinner size="24px" svgSize="small" />
         </div>
       );
-    } else {
-      throw new Error(
-        'SearchResults.renderRowContents: Encountered unknown row type'
-      );
     }
+    throw new Error(
+      'SearchResults.renderRowContents: Encountered unknown row type'
+    );
   }
 
   public renderRow = ({
@@ -469,7 +474,7 @@ export class SearchResults extends React.Component<PropsType, StateType> {
     );
   };
 
-  public componentDidUpdate(prevProps: PropsType) {
+  public componentDidUpdate(prevProps: PropsType): void {
     const {
       items,
       searchTerm,
@@ -493,9 +498,9 @@ export class SearchResults extends React.Component<PropsType, StateType> {
     }
   }
 
-  public getList = () => {
+  public getList = (): List | null => {
     if (!this.listRef) {
-      return;
+      return null;
     }
 
     const { current } = this.listRef;
@@ -503,7 +508,7 @@ export class SearchResults extends React.Component<PropsType, StateType> {
     return current;
   };
 
-  public recomputeRowHeights = (row?: number) => {
+  public recomputeRowHeights = (row?: number): void => {
     const list = this.getList();
     if (!list) {
       return;
@@ -512,18 +517,18 @@ export class SearchResults extends React.Component<PropsType, StateType> {
     list.recomputeRowHeights(row);
   };
 
-  public resizeAll = () => {
+  public resizeAll = (): void => {
     this.cellSizeCache.clearAll();
     this.recomputeRowHeights(0);
   };
 
-  public getRowCount() {
+  public getRowCount(): number {
     const { items } = this.props;
 
     return items ? items.length : 0;
   }
 
-  public render() {
+  public render(): JSX.Element {
     const {
       height,
       i18n,
@@ -574,7 +579,7 @@ export class SearchResults extends React.Component<PropsType, StateType> {
       <div
         className="module-search-results"
         aria-live="polite"
-        role="group"
+        role="presentation"
         tabIndex={-1}
         ref={this.containerRef}
         onKeyDown={this.handleKeyDown}
@@ -592,6 +597,8 @@ export class SearchResults extends React.Component<PropsType, StateType> {
           rowRenderer={this.renderRow}
           scrollToIndex={scrollToIndex}
           tabIndex={-1}
+          // TODO: DESKTOP-687
+          // eslint-disable-next-line @typescript-eslint/no-explicit-any
           onScroll={this.onScroll as any}
           width={width}
         />

ts/components/ShortcutGuide.stories.tsx

@@ -3,12 +3,8 @@ import { action } from '@storybook/addon-actions';
 import { storiesOf } from '@storybook/react';
 import { boolean, select } from '@storybook/addon-knobs';
 
-// @ts-ignore
 import { setup as setupI18n } from '../../js/modules/i18n';
-
-// @ts-ignore
 import enMessages from '../../_locales/en/messages.json';
-
 import { Props, ShortcutGuide } from './ShortcutGuide';
 
 const i18n = setupI18n('en', enMessages);

ts/components/ShortcutGuide.tsx

@@ -196,7 +196,7 @@ const CALLING_SHORTCUTS: Array<ShortcutType> = [
   },
 ];
 
-export const ShortcutGuide = (props: Props) => {
+export const ShortcutGuide = (props: Props): JSX.Element => {
   const focusRef = React.useRef<HTMLDivElement>(null);
   const { i18n, close, hasInstalledStickers, platform } = props;
   const isMacOS = platform === 'darwin';
@@ -211,9 +211,11 @@ export const ShortcutGuide = (props: Props) => {
           {i18n('Keyboard--header')}
         </div>
         <button
+          aria-label={i18n('close-popup')}
           className="module-shortcut-guide__header-close"
           onClick={close}
           title={i18n('close-popup')}
+          type="button"
         />
       </div>
       <div
@@ -282,17 +284,17 @@ function renderShortcut(
   i18n: LocalizerType
 ) {
   return (
-    <div key={index} className="module-shortcut-guide__shortcut" tabIndex={0}>
+    <div key={index} className="module-shortcut-guide__shortcut">
       <div className="module-shortcut-guide__shortcut__description">
         {i18n(shortcut.description)}
       </div>
       <div className="module-shortcut-guide__shortcut__key-container">
-        {shortcut.keys.map((keys, outerIndex) => (
+        {shortcut.keys.map(keys => (
           <div
-            key={outerIndex}
+            key={`${shortcut.description}--${keys.map(k => k).join('-')}`}
             className="module-shortcut-guide__shortcut__key-inner-container"
           >
-            {keys.map((key, mapIndex) => {
+            {keys.map(key => {
               let label: string = key;
               let isSquare = true;
 
@@ -334,7 +336,7 @@ function renderShortcut(
 
               return (
                 <span
-                  key={mapIndex}
+                  key={`shortcut__key--${key}`}
                   className={classNames(
                     'module-shortcut-guide__shortcut__key',
                     isSquare

ts/components/ShortcutGuideModal.tsx

@@ -10,36 +10,33 @@ export type PropsType = {
   readonly i18n: LocalizerType;
 };
 
-export const ShortcutGuideModal = React.memo(
-  // tslint:disable-next-line max-func-body-length
-  (props: PropsType) => {
-    const { i18n, close, hasInstalledStickers, platform } = props;
-    const [root, setRoot] = React.useState<HTMLElement | null>(null);
+export const ShortcutGuideModal = React.memo((props: PropsType) => {
+  const { i18n, close, hasInstalledStickers, platform } = props;
+  const [root, setRoot] = React.useState<HTMLElement | null>(null);
 
-    React.useEffect(() => {
-      const div = document.createElement('div');
-      document.body.appendChild(div);
-      setRoot(div);
+  React.useEffect(() => {
+    const div = document.createElement('div');
+    document.body.appendChild(div);
+    setRoot(div);
 
-      return () => {
-        document.body.removeChild(div);
-      };
-    }, []);
+    return () => {
+      document.body.removeChild(div);
+    };
+  }, []);
 
-    return root
-      ? createPortal(
-          <div className="module-shortcut-guide-modal">
-            <div className="module-shortcut-guide-container">
-              <ShortcutGuide
-                hasInstalledStickers={hasInstalledStickers}
-                platform={platform}
-                close={close}
-                i18n={i18n}
-              />
-            </div>
-          </div>,
-          root
-        )
-      : null;
-  }
-);
+  return root
+    ? createPortal(
+        <div className="module-shortcut-guide-modal">
+          <div className="module-shortcut-guide-container">
+            <ShortcutGuide
+              hasInstalledStickers={hasInstalledStickers}
+              platform={platform}
+              close={close}
+              i18n={i18n}
+            />
+          </div>
+        </div>,
+        root
+      )
+    : null;
+});

ts/components/Spinner.stories.tsx

@@ -1,8 +1,8 @@
 import * as React from 'react';
-import { Props, Spinner, SpinnerDirections, SpinnerSvgSizes } from './Spinner';
 
 import { storiesOf } from '@storybook/react';
 import { select, text } from '@storybook/addon-knobs';
+import { Props, Spinner, SpinnerDirections, SpinnerSvgSizes } from './Spinner';
 
 const story = storiesOf('Components/Spinner', module);
 

ts/components/Spinner.tsx

@@ -17,42 +17,34 @@ export interface Props {
   direction?: SpinnerDirection;
 }
 
-export class Spinner extends React.Component<Props> {
-  public render() {
-    const { size, svgSize, direction } = this.props;
-
-    return (
-      <div
-        className={classNames(
-          'module-spinner__container',
-          `module-spinner__container--${svgSize}`,
-          direction ? `module-spinner__container--${direction}` : null,
-          direction
-            ? `module-spinner__container--${svgSize}-${direction}`
-            : null
-        )}
-        style={{
-          height: size,
-          width: size,
-        }}
-      >
-        <div
-          className={classNames(
-            'module-spinner__circle',
-            `module-spinner__circle--${svgSize}`,
-            direction ? `module-spinner__circle--${direction}` : null,
-            direction ? `module-spinner__circle--${svgSize}-${direction}` : null
-          )}
-        />
-        <div
-          className={classNames(
-            'module-spinner__arc',
-            `module-spinner__arc--${svgSize}`,
-            direction ? `module-spinner__arc--${direction}` : null,
-            direction ? `module-spinner__arc--${svgSize}-${direction}` : null
-          )}
-        />
-      </div>
-    );
-  }
-}
+export const Spinner = ({ size, svgSize, direction }: Props): JSX.Element => (
+  <div
+    className={classNames(
+      'module-spinner__container',
+      `module-spinner__container--${svgSize}`,
+      direction ? `module-spinner__container--${direction}` : null,
+      direction ? `module-spinner__container--${svgSize}-${direction}` : null
+    )}
+    style={{
+      height: size,
+      width: size,
+    }}
+  >
+    <div
+      className={classNames(
+        'module-spinner__circle',
+        `module-spinner__circle--${svgSize}`,
+        direction ? `module-spinner__circle--${direction}` : null,
+        direction ? `module-spinner__circle--${svgSize}-${direction}` : null
+      )}
+    />
+    <div
+      className={classNames(
+        'module-spinner__arc',
+        `module-spinner__arc--${svgSize}`,
+        direction ? `module-spinner__arc--${direction}` : null,
+        direction ? `module-spinner__arc--${svgSize}-${direction}` : null
+      )}
+    />
+  </div>
+);

ts/components/StartNewConversation.stories.tsx

@@ -1,15 +1,12 @@
 import * as React from 'react';
 
 import { storiesOf } from '@storybook/react';
-import { Props, StartNewConversation } from './StartNewConversation';
-
-// @ts-ignore
-import { setup as setupI18n } from '../../js/modules/i18n';
-
-// @ts-ignore
-import enMessages from '../../_locales/en/messages.json';
 import { action } from '@storybook/addon-actions';
 import { text } from '@storybook/addon-knobs';
+import { Props, StartNewConversation } from './StartNewConversation';
+
+import { setup as setupI18n } from '../../js/modules/i18n';
+import enMessages from '../../_locales/en/messages.json';
 
 const i18n = setupI18n('en', enMessages);
 

ts/components/StartNewConversation.tsx

@@ -11,11 +11,15 @@ export interface Props {
 }
 
 export class StartNewConversation extends React.PureComponent<Props> {
-  public render() {
+  public render(): JSX.Element {
     const { phoneNumber, i18n, onClick } = this.props;
 
     return (
-      <button className="module-start-new-conversation" onClick={onClick}>
+      <button
+        type="button"
+        className="module-start-new-conversation"
+        onClick={onClick}
+      >
         <Avatar
           color="grey"
           conversationType="direct"

ts/components/UpdateDialog.stories.tsx

@@ -1,14 +1,11 @@
 import * as React from 'react';
-import { UpdateDialog } from './UpdateDialog';
-
-// @ts-ignore
-import { setup as setupI18n } from '../../js/modules/i18n';
-// @ts-ignore
-import enMessages from '../../_locales/en/messages.json';
-
 import { storiesOf } from '@storybook/react';
 import { boolean, select } from '@storybook/addon-knobs';
 import { action } from '@storybook/addon-actions';
+import { UpdateDialog } from './UpdateDialog';
+
+import { setup as setupI18n } from '../../js/modules/i18n';
+import enMessages from '../../_locales/en/messages.json';
 
 const i18n = setupI18n('en', enMessages);
 

ts/components/UpdateDialog.tsx

@@ -81,7 +81,9 @@ export const UpdateDialog = ({
           </span>
         </div>
         <div className="module-left-pane-dialog__actions">
-          <button onClick={dismissDialog}>{i18n('ok')}</button>
+          <button type="button" onClick={dismissDialog}>
+            {i18n('ok')}
+          </button>
         </div>
       </div>
     );
@@ -96,13 +98,14 @@ export const UpdateDialog = ({
       <div className="module-left-pane-dialog__actions">
         {!didSnooze && (
           <button
+            type="button"
             className="module-left-pane-dialog__button--no-border"
             onClick={snoozeUpdate}
           >
             {i18n('autoUpdateLaterButtonLabel')}
           </button>
         )}
-        <button onClick={startUpdate}>
+        <button type="button" onClick={startUpdate}>
           {i18n('autoUpdateRestartButtonLabel')}
         </button>
       </div>

ts/components/_util.ts

@@ -1,6 +1,4 @@
-// A separate file so this doesn't get picked up by StyleGuidist over real components
-
-import { Ref } from 'react';
+import { MutableRefObject, Ref } from 'react';
 import { isFunction } from 'lodash';
 import memoizee from 'memoizee';
 
@@ -8,6 +6,8 @@ export function cleanId(id: string): string {
   return id.replace(/[^\u0020-\u007e\u00a0-\u00ff]/g, '_');
 }
 
+// Memoizee makes this difficult.
+// eslint-disable-next-line @typescript-eslint/explicit-module-boundary-types
 export const createRefMerger = () =>
   memoizee(
     <T>(...refs: Array<Ref<T>>) => {
@@ -16,8 +16,9 @@ export const createRefMerger = () =>
           if (isFunction(r)) {
             r(t);
           } else if (r) {
-            // @ts-ignore: React's typings for ref objects is annoying
-            r.current = t;
+            // Using a MutableRefObject as intended
+            // eslint-disable-next-line no-param-reassign
+            (r as MutableRefObject<T>).current = t;
           }
         });
       };

ts/components/emoji/lib.ts

@@ -108,8 +108,7 @@ export const preloadImages = async (): Promise<void> => {
       setTimeout(reject, 5000);
     });
 
-  // eslint-disable-next-line no-console
-  console.log('Preloading emoji images');
+  window.log.info('Preloading emoji images');
   const start = Date.now();
 
   data.forEach(emoji => {
@@ -127,8 +126,7 @@ export const preloadImages = async (): Promise<void> => {
   await imageQueue.onEmpty();
 
   const end = Date.now();
-  // eslint-disable-next-line no-console
-  console.log(`Done preloading emoji images in ${end - start}ms`);
+  window.log.info(`Done preloading emoji images in ${end - start}ms`);
 };
 
 const dataByShortName = keyBy(data, 'short_name');

ts/util/lint/exceptions.json

@@ -12829,7 +12829,7 @@
     "rule": "React-createRef",
     "path": "ts/components/CallScreen.js",
     "line": "        this.localVideoRef = react_1.default.createRef();",
-    "lineNumber": 97,
+    "lineNumber": 98,
     "reasonCategory": "usageTrusted",
     "updated": "2020-05-28T17:22:06.472Z",
     "reasonDetail": "Used to render local preview video"
@@ -12847,7 +12847,7 @@
     "rule": "React-createRef",
     "path": "ts/components/CallScreen.tsx",
     "line": "    this.localVideoRef = React.createRef();",
-    "lineNumber": 74,
+    "lineNumber": 79,
     "reasonCategory": "usageTrusted",
     "updated": "2020-06-02T21:51:34.813Z",
     "reasonDetail": "Used to render local preview video"
@@ -12874,7 +12874,7 @@
     "rule": "React-createRef",
     "path": "ts/components/CaptionEditor.tsx",
     "line": "    this.inputRef = React.createRef();",
-    "lineNumber": 46,
+    "lineNumber": 50,
     "reasonCategory": "usageTrusted",
     "updated": "2019-03-09T00:08:44.242Z",
     "reasonDetail": "Used only to set focus"
@@ -12883,7 +12883,7 @@
     "rule": "DOM-innerHTML",
     "path": "ts/components/CompositionArea.js",
     "line": "    el.innerHTML = '';",
-    "lineNumber": 23,
+    "lineNumber": 24,
     "reasonCategory": "usageTrusted",
     "updated": "2020-05-20T20:10:43.540Z",
     "reasonDetail": "Our code, no user input, only clearing out the dom"
@@ -12892,7 +12892,7 @@
     "rule": "DOM-innerHTML",
     "path": "ts/components/CompositionArea.tsx",
     "line": "  el.innerHTML = '';",
-    "lineNumber": 80,
+    "lineNumber": 81,
     "reasonCategory": "usageTrusted",
     "updated": "2020-06-03T19:23:21.195Z",
     "reasonDetail": "Our code, no user input, only clearing out the dom"
@@ -12901,7 +12901,7 @@
     "rule": "jQuery-$(",
     "path": "ts/components/Intl.js",
     "line": "        const FIND_REPLACEMENTS = /\\$([^$]+)\\$/g;",
-    "lineNumber": 35,
+    "lineNumber": 33,
     "reasonCategory": "falseMatch",
     "updated": "2020-07-21T18:34:59.251Z"
   },
@@ -12935,7 +12935,7 @@
     "rule": "React-createRef",
     "path": "ts/components/Lightbox.js",
     "line": "        this.containerRef = react_1.default.createRef();",
-    "lineNumber": 141,
+    "lineNumber": 148,
     "reasonCategory": "usageTrusted",
     "updated": "2019-11-06T19:56:38.557Z",
     "reasonDetail": "Used to double-check outside clicks"
@@ -12953,7 +12953,7 @@
     "rule": "React-createRef",
     "path": "ts/components/Lightbox.js",
     "line": "        this.focusRef = react_1.default.createRef();",
-    "lineNumber": 143,
+    "lineNumber": 150,
     "reasonCategory": "usageTrusted",
     "updated": "2019-11-06T19:56:38.557Z",
     "reasonDetail": "Used to manage focus"
@@ -12962,7 +12962,7 @@
     "rule": "React-createRef",
     "path": "ts/components/MainHeader.js",
     "line": "        this.inputRef = react_1.default.createRef();",
-    "lineNumber": 146,
+    "lineNumber": 144,
     "reasonCategory": "usageTrusted",
     "updated": "2020-02-14T20:02:37.507Z",
     "reasonDetail": "Used only to set focus"

tslint.json

@@ -178,9 +178,10 @@
   "linterOptions": {
     "exclude": [
       "ts/*.ts",
-      "ts/components/emoji/**",
       "ts/backbone/**",
       "ts/build/**",
+      "ts/components/*.ts[x]",
+      "ts/components/emoji/**",
       "ts/notifications/**",
       "ts/protobuf/**",
       "ts/scripts/**",