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@jaredpalmer
Last active June 11, 2019 08:35
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React Native Web x TypeScript

React Native Web x TypeScript

Assuming you have already aliased react-native to react-native-web in webapack (this is done for you in CRA and Razzle), go ahead and add these deps to your project.

yarn add react-native-web
yarn add @types/react-native --dev

We are going to monkeypatch the React Native types so they can be used with TypeScript without conflicting with @types/node and append typings specific to RN Web.

Add a postinstall task to your package.json that calls node postinstall.js.

// package.json
{
  "scripts": {
    "postinstall": "node ./postinstall.js"
  }
}

And copy postinstall.js into your project's root.

I have gone through the joyous task of adding types for RN web for you.

// ./postinstall.js
'use strict';
const fs = require('fs');
const RN_TSD = __dirname + '/node_modules/@types/react-native/index.d.ts';
const raw = fs.readFileSync(RN_TSD);
// Fix @types/node conflict
// @see https://github.com/DefinitelyTyped/DefinitelyTyped/issues/15960
// @see https://gist.github.com/rawrmaan/be47e71bd0df3f7493ead6cefd6b400c
fs.writeFileSync(
RN_TSD,
raw.toString().replace('declare global', 'declare namespace RemovedGlobals')
);
// Add React Native Web Types to @types/react-native.
if (!raw.includes('REACT-NATIVE-WEB TYPINGS')) {
fs.writeFileSync(
RN_TSD,
raw.toString().replace(
`dismiss: () => void;\n}`,
`dismiss: () => void;\n}
//////////////////////////////////////////////////////////////////////////
//
// REACT-NATIVE-WEB TYPINGS
//
//////////////////////////////////////////////////////////////////////////
export interface ImageProperties {
/**
* When false, the image will not be draggable
* @platform web
*/
draggable?: boolean;
}
export interface TextInputProperties {
/**
* Indicates whether the value of the control can be automatically completed by the browser
* @platform web
*/
autoComplete?: string;
}
export interface SwitchProperties {
/**
* The color of the thumb grip when the switch is turned on.
* @platform web
*/
activeThumbColor?: string;
/**
* The color of the track when the switch is turned on.
* @platform web
*/
activeTrackColor?: string;
/**
* The color of the thumb grip when the switch is turned off.
* @platform web
*/
thumbColor?: string;
/**
* The color of the track when the switch is turned off.
* @platform web
*/
trackColor?: string;
}
export interface TextStyle {
/** @platform web */
fontFeatureSettings?: string;
/** @platform web */
textIndent?: string;
/** @platform web */
textOverflow?: string;
/** @platform web */
textRendering?: string;
/** @platform web */
textTransform?: string;
/** @platform web */
unicodeBidi?: string;
/** @platform web */
wordWrap?: string;
/**
* TextInput only!
* @platform web
*/
resize?: string;
}
export interface ViewStyle {
/** @platform web */
animationDelay?: string;
/** @platform web */
animationDirection?: string;
/** @platform web */
animationDuration?: string;
/** @platform web */
animationFillMode?: string;
/** @platform web */
animationName?: string | Array<Object>;
/** @platform web */
animationIterationCount?: number | "infinite";
/** @platform web */
animationPlayState?: string;
/** @platform web */
animationTimingFunction?: string;
/** @platform web */
backgroundAttachment?: string;
/** @platform web */
backgroundBlendMode?: string;
/** @platform web */
backgroundClip?: string;
/** @platform web */
backgroundImage?: string;
/** @platform web */
backgroundOrigin?: string;
/** @platform web */
backgroundPosition?: string;
/** @platform web */
backgroundRepeat?: string;
/** @platform web */
backgroundSize?: string;
/** @platform web */
boxShadow?: string;
/** @platform web */
boxSizing?: string;
/** @platform web */
clip?: string;
/** @platform web */
cursor?: string;
/** @platform web */
filter?: string;
/** @platform web */
gridAutoColumns?: string;
/** @platform web */
gridAutoFlow?: string;
/** @platform web */
gridAutoRows?: string;
/** @platform web */
gridColumnEnd?: string;
/** @platform web */
gridColumnGap?: string;
/** @platform web */
gridColumnStart?: string;
/** @platform web */
gridRowEnd?: string;
/** @platform web */
gridRowGap?: string;
/** @platform web */
gridRowStart?: string;
/** @platform web */
gridTemplateColumns?: string;
/** @platform web */
gridTemplateRows?: string;
/** @platform web */
gridTemplateAreas?: string;
/** @platform web */
outline?: string;
/** @platform web */
outlineColor?: string;
/** @platform web */
overflowX?: string;
/** @platform web */
overflowY?: string;
/** @platform web */
overscrollBehavior?: "auto" | "contain" | "none";
/** @platform web */
overscrollBehaviorX?: "auto" | "contain" | "none";
/** @platform web */
overscrollBehaviorY?: "auto" | "contain" | "none";
/** @platform web */
perspective?: string;
/** @platform web */
perspectiveOrigin?: string;
/** @platform web */
touchAction?: string;
/** @platform web */
transformOrigin?: string;
/** @platform web */
transitionDelay?: string;
/** @platform web */
transitionDuration?: string;
/** @platform web */
transitionProperty?: string;
/** @platform web */
transitionTimingFunction?: string;
/** @platform web */
userSelect?: string
/** @platform web */
visibility?: string;
/** @platform web */
willChange?: string;
}
export interface TextProperties {
/**
* Allows assistive technologies to present and support interaction with the view in a manner that is consistent with user expectations for similar views of that type. For example, marking a touchable view with an accessibilityRole of button. For compatibility with React Native accessibilityTraits and accessibilityComponentType are mapped to accessibilityRole. (This is implemented using ARIA roles.)
* @platform web
*/
accessibilityRole?: 'button' | 'heading' | 'label' | 'link' | 'listitem';
}
export interface CheckBoxProps extends ViewProperties {
/**
* Invoked with the event when the value changes.
* @platform web
*/
onChange?: Function;
/**
* Invoked with the new value when the value changes.
* @platform web
*/
onValueChange?: Function;
/**
* The value of the checkbox. If \`true\` the checkbox will be checked.
* @platform web
*/
value?: boolean;
/**
* If true, the user won't be able to interact with the checkbox.
* @platform web
*/
disabled?: boolean;
/**
* Customize the color of the checkbox.
* @platform web
*/
color?: string;
}
export interface CheckBoxStatic extends React.ComponentClass<CheckBoxProps> {}
export type CheckBox = CheckBoxStatic;
`
)
);
}
@elmpp
Copy link

elmpp commented Jun 10, 2019

Finding race conditions with the multiple writeFileSync in same tick so this is working for me now (updated for RN 0.57.0 types also)

Thanks!

// ./postinstall.js
'use strict'

const fs = require('fs')

const RN_TSD = __dirname + '/../../node_modules/@types/react-native/index.d.ts'
let raw = fs.readFileSync(RN_TSD)


// Fix @types/node conflict
// @see https://github.com/DefinitelyTyped/DefinitelyTyped/issues/15960
// @see https://gist.github.com/rawrmaan/be47e71bd0df3f7493ead6cefd6b400c
fs.writeFile(
  `${RN_TSD}`,
  raw.toString().replace('declare global', 'declare namespace RemovedGlobals'),
  {},
  () => {
    // Add React Native Web Types to @types/react-native.
    if (!raw.includes('REACT-NATIVE-WEB TYPINGS')) {
      raw = fs.readFileSync(RN_TSD)
      fs.writeFileSync(
        RN_TSD,
        raw.toString().replace(
          `const __DEV__: boolean;\n}`,
          `const __DEV__: boolean;\n}
      //////////////////////////////////////////////////////////////////////////
      //
      //  REACT-NATIVE-WEB TYPINGS
      //
      //////////////////////////////////////////////////////////////////////////
      export interface ImageProperties {
          /** 
           * When false, the image will not be draggable 
           * @platform web
           */
          draggable?: boolean;
      }
      
      export interface TextInputProperties {
          /** 
           * Indicates whether the value of the control can be automatically completed by the browser
           * @platform web
           */
          autoComplete?: string;
      }
      
      export interface SwitchProperties {
          /** 
           * The color of the thumb grip when the switch is turned on. 
           * @platform web
           */
          activeThumbColor?: string;
          /** 
           * The color of the track when the switch is turned on.  
           * @platform web
           */
          activeTrackColor?: string;
          /** 
           * The color of the thumb grip when the switch is turned off. 
           * @platform web
           */
          thumbColor?: string;
          /** 
           * The color of the track when the switch is turned off.
           * @platform web
           */
          trackColor?: string;
      }
      
      export interface TextStyle {
          /** @platform web */
          fontFeatureSettings?: string;
          /** @platform web */
          textIndent?: string;
          /** @platform web */
          textOverflow?: string;
          /** @platform web */
          textRendering?: string;
          /** @platform web */
          textTransform?: string;
          /** @platform web */
          unicodeBidi?: string;
          /** @platform web */
          wordWrap?: string;
          /** 
           * TextInput only! 
           * @platform web 
           */
          resize?: string;
      }
      
      export interface ViewStyle {
          /** @platform web */
          animationDelay?: string;
          /** @platform web */
          animationDirection?: string;
          /** @platform web */
          animationDuration?: string;
          /** @platform web */
          animationFillMode?: string;
          /** @platform web */
          animationName?: string | Array<Object>;
          /** @platform web */
          animationIterationCount?: number | "infinite";
          /** @platform web */
          animationPlayState?: string;
          /** @platform web */
          animationTimingFunction?: string;
          /** @platform web */
          backgroundAttachment?: string;
          /** @platform web */
          backgroundBlendMode?: string;
          /** @platform web */
          backgroundClip?: string;
          /** @platform web */
          backgroundImage?: string;
          /** @platform web */
          backgroundOrigin?: string;
          /** @platform web */
          backgroundPosition?: string;
          /** @platform web */
          backgroundRepeat?: string;
          /** @platform web */
          backgroundSize?: string;
          /** @platform web */
          boxShadow?: string;
          /** @platform web */
          boxSizing?: string;
          /** @platform web */
          clip?: string;
          /** @platform web */
          cursor?: string;
          /** @platform web */
          filter?: string;
          /** @platform web */
          gridAutoColumns?: string;
          /** @platform web */
          gridAutoFlow?: string;
          /** @platform web */
          gridAutoRows?: string;
          /** @platform web */
          gridColumnEnd?: string;
          /** @platform web */
          gridColumnGap?: string;
          /** @platform web */
          gridColumnStart?: string;
          /** @platform web */
          gridRowEnd?: string;
          /** @platform web */
          gridRowGap?: string;
          /** @platform web */
          gridRowStart?: string;
          /** @platform web */
          gridTemplateColumns?: string;
          /** @platform web */
          gridTemplateRows?: string;
          /** @platform web */
          gridTemplateAreas?: string;
          /** @platform web */
          outline?: string;
          /** @platform web */
          outlineColor?: string;
          /** @platform web */
          overflowX?: string;
          /** @platform web */
          overflowY?: string;
          /** @platform web */
          overscrollBehavior?: "auto" | "contain" | "none";
          /** @platform web */
          overscrollBehaviorX?: "auto" | "contain" | "none";
          /** @platform web */
          overscrollBehaviorY?: "auto" | "contain" | "none";
          /** @platform web */
          perspective?: string;
          /** @platform web */
          perspectiveOrigin?: string;
          /** @platform web */
          touchAction?: string;
          /** @platform web */
          transformOrigin?: string;
          /** @platform web */
          transitionDelay?: string;
          /** @platform web */
          transitionDuration?: string;
          /** @platform web */
          transitionProperty?: string;
          /** @platform web */
          transitionTimingFunction?: string;
          /** @platform web */
          userSelect?: string
          /** @platform web */
          visibility?: string;
          /** @platform web */
          willChange?: string;
      }
      
      export interface TextProperties {
          /** 
           * Allows assistive technologies to present and support interaction with the view in a manner that is consistent with user expectations for similar views of that type. For example, marking a touchable view with an accessibilityRole of button. For compatibility with React Native accessibilityTraits and accessibilityComponentType are mapped to accessibilityRole. (This is implemented using ARIA roles.) 
           * @platform web
           */
          accessibilityRole?: 'button' | 'heading' | 'label' | 'link' | 'listitem';
      }
      
      
      export interface CheckBoxProps extends ViewProperties {
          /** 
           * Invoked with the event when the value changes. 
           * @platform web
           */
          onChange?: Function;
          /** 
           * Invoked with the new value when the value changes. 
           * @platform web
           */
          onValueChange?: Function;
          /** 
           * The value of the checkbox. If \`true\` the checkbox will be checked. 
           * @platform web
           */
          value?: boolean;
          /** 
           * If true, the user won't be able to interact with the checkbox. 
           * @platform web
           */
          disabled?: boolean;
          /** 
           * Customize the color of the checkbox.
           * @platform web  
           */
          color?: string;
      }
      
      export interface CheckBoxStatic extends React.ComponentClass<CheckBoxProps> {}
      export type CheckBox = CheckBoxStatic;


      ///////////////// Altered by MP //////////////
      export namespace AppRegistry {
        function getApplication(appKey: string, appParameters?: object): string;
      }
  `
        )
      )
    }
  }
)

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