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etymos

v0.0.2

Published

responsive toolkit for react + styled-components

Downloads

12

Readme

ἔτυμος

npm package demo Travis Coveralls Bundlephobia

etymos is a responsive, mobile-first, toolkit for react + styled-components.


installation

yarn:

yarn add etymos

npm:

npm install etymos --save

usage

this package provides a Provider, some hooks and a styled-components helper

Provider

receives a breakpoints prop (if not present, this package provides a default)

this prop is an object with other objects containing at least a width number (in pixels), but it can contain more entries (useful together with mapTheme function)

const breakpoints = {
  hey: { width: 0 },
  thats: { width: 480 },
  rad: { width: 768 },
}

const App = () => (
  <Provider breakpoints={breakpoints}>
    <pre>hey, app here</pre>
  </Provider>
)

hooks

provides data derived from closest <Provider/> and / or window size*

useTheme

outputs an object with:

  • columns: columns count
  • breakpoints: breakpoints object as described on Provider

useWindowSize

outputs an object with numeric: innerHeight & innerWidth

when ssr, both will return 0

useMediaQuery

receives an object with optional above and below parameters and returns a boolean. both parameters can be one of:

  • a string denoting a breakpoint

  • a number of pixels

the default parameters are below: 0, above: Infinity, therefore, if no parameters are provided, it will always return true

useBreakpoints

returns an array of strings denoting the breakpoint that are visible eg. on a tablet, we should get something like ['xs', 'sm', 'md']

useCurrentBreakpoint

returns a string denoting the biggest visible breakpoint, following the example, on a tablet we should get something like 'md'


styled-components helpers

above

a media query helper utility to use inside styled-components. receives a string denoting the breakpoint, and a template literal with the css that should be rendered:

const AboveMD = styled.div`
  display: none;
  ${above('md')`
    display: block;
 `}
`

mapBreakpoints

this helper will create props with your breakpoints keys, that will be treated by a function (receiving the value defined, as other props) and will be rendered inside an above blocks for the corresponding defined breakpoints props.

const Spacer = styled.div`
  display: block;
  ${mapBreakpoints((value, props) => `
    margin: ${value}rem;
  `)}
`

const App = () => <Provider><Spacer xs={0} md={1} /></Provider>

mapTheme

similar to mapBreakpoints this helper can read entries on each breakpoint (defined by the breakpoints object) and treat them with a function that will render inside above blocks.


const breakpoints = {
  sm: {width: 0, gutter: 0.5},
  md: {width: 0},
  lg: {width: 0, gutter: 1},
}

const Spacer = styled.div`
  display: block;
  ${mapTheme((value, props) => value.gutter && `
    margin: ${value.gutter}rem;
  `)}
`

const App = () => (
  <Provider breakpoints={breakpoints}>
    <Spacer/>
  </Provider>
)

contributing

this repo is open to issues and pull requests


thanks

mostly of this lib was done with @leonardodino great help and probably wouldn't be possible without it.