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styled-tools

(★ 799)

Useful interpolated functions for CSS-in-JS

File Explorer

Download Latest Version (.zip)

- index.js
- ifNotProp.js
- ifProp.js
- index.js
- index.js.flow
- palette.js
- prop.js
- switchProp.js
- theme.js
- withProp.js
- ifNotProp.test.js
- ifProp.test.js
- palette.test.js
- prop.test.js
- switchProp.test.js
- theme.test.js
- withProp.test.js
- index.d.ts
- tests.ts
.editorconfig
.eslintignore
.eslintrc
.flowconfig
.gitignore
.travis.yml
babel.config.js
CHANGELOG.md
documentation.yml
index.js
LICENSE
package.json
README.md
tsconfig.json
yarn.lock

🚀 Installation Guide

1. Get the code

git clone https://github.com/diegohaz/styled-tools

Downloads the entire project code from GitHub to your computer.

cd styled-tools

Moves into the project folder you just downloaded.

2. Node.js

Easy Recommended

Prerequisites

Git Needed to download the project code from GitHub.
Node.js Node.js must be installed to use npm. The LTS version is recommended.

npm i styled-tools

Type this command into your terminal and run it.

yarn add styled-tools

Type this command into your terminal and run it.

✅ After running the command, open the address shown in the terminal (usually something like http://localhost:3000) in your browser.

Pulled directly from this repo's README.

// repository documentation

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# styled-tools 💅

[![NPM version](https://img.shields.io/npm/v/styled-tools.svg?style=flat-square)](https://npmjs.org/package/styled-tools)
[![NPM downloads](https://img.shields.io/npm/dm/styled-tools.svg?style=flat-square)](https://npmjs.org/package/styled-tools)
[![Dependencies](https://img.shields.io/david/diegohaz/styled-tools.svg?style=flat-square)](https://david-dm.org/diegohaz/styled-tools)
[![Build Status](https://img.shields.io/travis/diegohaz/styled-tools/master.svg?style=flat-square)](https://travis-ci.org/diegohaz/styled-tools) [![Coverage Status](https://img.shields.io/codecov/c/github/diegohaz/styled-tools/master.svg?style=flat-square)](https://codecov.io/gh/diegohaz/styled-tools/branch/master)

Useful interpolated functions for [styled-components](https://github.com/styled-components/styled-components) 💅, [emotion](https://github.com/emotion-js/emotion) 👩‍🎤, [JSS](https://github.com/cssinjs/jss) and other CSS-in-JS libraries.

## Install

npm:

npm i styled-tools

Yarn:

yarn add styled-tools

## Usage

```jsx
import styled, { css } from "styled-components";
import { prop, ifProp, switchProp } from "styled-tools";

const Button = styled.button`
  color: ${prop("color", "red")};
  font-size: ${ifProp({ size: "large" }, "20px", "14px")};
  background-color: ${switchProp("theme", {
    dark: "blue", 
    darker: "mediumblue", 
    darkest: "darkblue" 
  })};
`;

// renders with color: blue
<Button color="blue" />

// renders with color: red
<Button />

// renders with font-size: 20px
<Button size="large" />

// renders with background-color: mediumblue
<Button theme="darker" />
```

A more complex example:

```jsx
const Button = styled.button`
  color: ${prop("theme.colors.white", "#fff")};
  font-size: ${ifProp({ size: "large" }, prop("theme.sizes.lg", "20px"), prop("theme.sizes.md", "14px"))};
  background-color: ${prop("theme.colors.black", "#000")};
  
  ${switchProp("kind", {
    dark: css`
      background-color: ${prop("theme.colors.blue", "blue")};
      border: 1px solid ${prop("theme.colors.blue", "blue")};
    `,
    darker: css`
      background-color: ${prop("theme.colors.mediumblue", "mediumblue")};
      border: 1px solid ${prop("theme.colors.mediumblue", "mediumblue")};
    `,
    darkest: css`
      background-color: ${prop("theme.colors.darkblue", "darkblue")};
      border: 1px solid ${prop("theme.colors.darkblue", "darkblue")};
    `
  })}
  
  ${ifProp("disabled", css`
    background-color: ${prop("theme.colors.gray", "#999")};
    border-color: ${prop("theme.colors.gray", "#999")};
    pointer-events: none;
  `)}
`;
```

## API

#### Table of Contents

-   [prop](#prop)
    -   [Parameters](#parameters)
    -   [Examples](#examples)
-   [theme](#theme)
    -   [Parameters](#parameters-1)
    -   [Examples](#examples-1)
-   [palette](#palette)
    -   [Parameters](#parameters-2)
    -   [Examples](#examples-2)
-   [ifProp](#ifprop)
    -   [Parameters](#parameters-3)
    -   [Examples](#examples-3)
-   [ifNotProp](#ifnotprop)
    -   [Parameters](#parameters-4)
    -   [Examples](#examples-4)
-   [withProp](#withprop)
    -   [Parameters](#parameters-5)
    -   [Examples](#examples-5)
-   [switchProp](#switchprop)
    -   [Parameters](#parameters-6)
    -   [Examples](#examples-6)
-   [Types](#types)
    -   [Needle](#needle)

### prop

Returns the value of `props[path]` or `defaultValue`

#### Parameters

-   `path` **[string](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String)** 
-   `defaultValue` **any**

#### Examples

```javascript
import styled from "styled-components";
import { prop } from "styled-tools";

const Button = styled.button`
  color: ${prop("color", "red")};
`;
```

Returns **PropsFn**

### theme

Same as `prop`, except that it returns `props.theme[path]` instead of
`props[path]`.

#### Parameters

-   `path` **[string](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String)** 
-   `defaultValue` **any**

#### Examples

```javascript
import styled from "styled-components";
import { theme } from "styled-tools";

const Button = styled.button`
 color: ${theme("button.color", "red")};
`;
```

### palette

Returns `props.theme.palette[key || props.palette][tone || props.tone || 0]` or `defaultValue`.

#### Parameters

-   `keyOrTone` **([string](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String) \| [number](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number))** 
-   `toneOrDefaultValue` **any** 
-   `defaultValue` **any**

#### Examples

```javascript
import styled, { ThemeProvider } from "styled-components";
import { palette } from "styled-tools";

const theme = {
  palette: {
    primary: ['#1976d2', '#2196f3', '#71bcf7', '#c2e2fb'],
    secondary: ['#c2185b', '#e91e63', '#f06292', '#f8bbd0']
  }
};

const Button = styled.button`
  color: ${palette(1)};                    // props.theme.palette[props.palette][1]
  color: ${palette("primary", 1)};         // props.theme.palette.primary[1]
  color: ${palette("primary")};            // props.theme.palette.primary[props.tone || 0]
  color: ${palette("primary", -1)};        // props.theme.palette.primary[3]
  color: ${palette("primary", 10)};        // props.theme.palette.primary[3]
  color: ${palette("primary", -10)};       // props.theme.palette.primary[0]
  color: ${palette("primary", 0, "red")};  // props.theme.palette.primary[0] || red
`;

<ThemeProvider theme={theme}>
  <Button palette="secondary" />
</ThemeProvider>
```

### ifProp

Returns `pass` if prop is truthy. Otherwise returns `fail`

#### Parameters

-   `test` **([Needle](#needle) \| [Array](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Array)&lt;[Needle](#needle)> | [Object](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object))** 
-   `pass` **any**  (optional, default `""`)
-   `fail` **any**  (optional, default `""`)

#### Examples

```javascript
import styled from "styled-components";
import { ifProp, palette } from "styled-tools";

const Button = styled.button`
  background-color: ${ifProp("transparent", "transparent", palette(0))};
  color: ${ifProp(["transparent", "accent"], palette("secondary"))};
  font-size: ${ifProp({ size: "large" }, "20px", ifProp({ size: "medium" }, "16px", "12px"))};
`;
```

Returns **PropsFn**

### ifNotProp

Returns `pass` if prop is falsy. Otherwise returns `fail`

#### Parameters

-   `test` **([Needle](#needle) \| [Array](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Array)&lt;[Needle](#needle)> | [Object](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object))** 
-   `pass` **any** 
-   `fail` **any**

#### Examples

```javascript
import styled from "styled-components";
import { ifNotProp } from "styled-tools";

const Button = styled.button`
  font-size: ${ifNotProp("large", "20px", "30px")};
`;
```

Returns **PropsFn**

### withProp

Calls a function passing properties values as arguments.

#### Parameters

-   `needle` **([Needle](#needle) \| [Array](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Array)&lt;[Needle](#needle)>)** 
-   `fn` **[Function](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Statements/function)**

#### Examples

```javascript
// example with polished
import styled from "styled-components";
import { darken } from "polished";
import { withProp, prop } from "styled-tools";

const Button = styled.button`
  border-color: ${withProp(prop("theme.primaryColor", "blue"), darken(0.5))};
  font-size: ${withProp("theme.size", size => `${size + 1}px`)};
  background: ${withProp(["foo", "bar"], (foo, bar) => `${foo}${bar}`)};
`;
```

Returns **PropsFn**

### switchProp

Switches on a given prop. Returns the value or function for a given prop value. Third parameter is default value.

#### Parameters

-   `needle` **[Needle](#needle)** 
-   `cases` **([Object](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object) | PropsFn)** 
-   `defaultCase` **any**

#### Examples

```javascript
import styled, { css } from "styled-components";
import { switchProp, prop } from "styled-tools";

const Button = styled.button`
  font-size: ${switchProp(prop("size", "medium"), {
    small: prop("theme.sizes.sm", "12px"),
    medium: prop("theme.sizes.md", "16px"),
    large: prop("theme.sizes.lg", "20px")
  }, prop("theme.sizes.md", "16px"))};
  ${switchProp("theme.kind", {
    light: css`
      color: LightBlue;
    `,
    dark: css`
      color: DarkBlue;
    `
  }, css`color: black;`)}
`;

<Button size="large" theme={{ kind: "light" }} />
```

Returns **PropsFn**

### Types

#### Needle

A Needle is used to map the props to a value. This can either be done with
a path string `"theme.size.sm"` or with a function
`(props) => props.theme.size.sm` (these two examples are equivalent).

All of styled-tools can be used as Needles making it possible to do
composition between functions. ie `ifProp(theme("dark"), "black", "white")`

Type: ([string](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String) \| [Function](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Statements/function))

## License

MIT © [Diego Haz](https://github.com/diegohaz)