css-in-js-styles-utils

css-in-js-styles-utils

Utils for Styled Components (packages: styled-components, @emotion, linaria etc.).

Table of content

1. Installation and usage
   • css-in-js normalize and reset
   • css-in-js mixins
   • React components utils
2. Licence
3. Contributing

Installation and usage

Step 1:

npm i css-in-js-styles-utils

Step 2:

Import whatever function you need. See description below.

css-in-js normalize and reset

Normalize

This normalizes styles for styled components packages, to use it you need to install one of the styled-components packages like: @emotion. This is a function witch has some default arguments. You can change it.

Name	Default value	Description
fontSize	'1.4rem'	font on body
lineHeight	1.5	line-height on body
baseFontSize	'62.5%'	font on html (this do 1rem to be 10px)

import { css } from '@emotion/react';
import { NormalizeStyles } from 'css-in-js-styles-utils';

// @emotion
const GlobalStyles = css`
  ${NormalizeStyles(
    fontSize,
    lineHeight,
    baseFontSize
  )};
`;

export {
  GlobalStyles
};

Reset [WIP]

import { css } from '@emotion/react';
import { ResetStyles } from 'css-in-js-styles-utils';

// @emotion
const GlobalStyles = css`
  ${ResetStyles(
    fontSize,
    lineHeight,
    baseFontSize
  )};
`;

export {
  GlobalStyles
};

css-in-js mixins

List of mixins

breakpoint's mixins and default breakpoints

• breakpoints - list of default breakpoints
• breakpointMinWidthMixin - Responsive web design - min-width mixin
• breakpointMaxWidthMixin - Responsive web design - max-width mixin

import { breakpoints } from 'css-in-js-styles-utils';

Default breakpoints values:

Breakpoint name	Value
smallPhone	320px
portraitPhone	360px
landscapePhone	480px
smallTablet	600px
portraitTablet	768px
landscapeTablet	840px
smallLaptop	1024px
laptop	1280px
desktop	1366px
hdDesktop	1440px
fhdDesktop	1920px

Default breakpoints height values:

Breakpoint name	Value
smallPhone	320px
landscapePhone	360px
portraitPhone	480px
smallLaptop	600px
laptop	768px
desktop	840px
hdDesktop	920px
fhdDesktop	1280px

Use with mixins

1. Create style mixin:

   // styles/breakpointMixin.js
   
   import { breakpoints, breakpointMinWidthMixin } from 'css-in-js-styles-utils';
   
   export const breakpointMixin = Object
     .keys(breakpoints)
     .reduce(
       (acc, current) => breakpointMinWidthMixin(acc, current, breakpoints), {}
     );
   

   And then you can use it like this:

   // some component e.g.: Button.styles.js
   // import breakpointMixin from previesly created file
   
   const ButtonWrapper = styled.div`
     color: yellow; // mobile styles
     
     ${breakpointMixin.smallTablet(css`
       color: red; // style for 600px width or more
     `)};
   `;
   

   * with other breakpoint's mixins do the same.

2. Import every time

   @TODO

OPTIONS:

1. You can use your own breakpoint's object:

// 1. Create style mixin

// styles/breakpointMixin.js
import { breakpointMinWidthMixin } from 'css-in-js-styles-utils';

const breakpoints = {
  phone: '360px',
  tablet: '600px',
  laptop: '1280px',
  desktop: '1366px'
};

export const breakpointMixin = Object
  .keys(breakpoints)
  .reduce(
    (acc, current) => breakpointMinWidthMixin(acc, current, breakpoints), {}
  );

// some component e.g.: Button.styles.js
// import breakpointMixin from previesly created file

const ButtonWrapper = styled.div`
  color: yellow; // mobile styles
  
  // Use names that exist in yor own breakpoints variable
  ${breakpointMixin.phone(css`
    color: red; // style for 600px width or more
  `)};
`;

// 2. Import every time

@TODO

Change HEX color to RGB (with transparency)

Arguments:

• hex - is required, e.g. #000000 (you need to provide a 6 digit hex color)
• alpha - is optional - use if you want to have hex color with opacity

import { hexToRgbMixin } from 'css-in-js-styles-utils';

const ButtonWrapper = styled.div`
  color: hexToRgbMixin('#000000', .3);
`;

FontFace mixin

Arguments:

• familyName
• src - object with woff, ttf and svg paths
• weight - default: 'normal'
• fontStyle - default: 'normal'

import { fontFaceMixin } from 'css-in-js-styles-utils';

import myFontWoff from './assets/fonts/myFont.woff';
import myFontTtf from './assets/fonts/myFont.ttf';
import myFontSvg from './assets/fonts/myFont.svg';

const src = {
  woff: myFontWoff,
  ttf: myFontTtf,
  svg: myFontSvg,
};

const GlobalStyles = css`
  // Normal
  ${fontFaceMixin('myFontName', src)};
  // Bold
  ${fontFaceMixin('myFontName', src, 400)};
  // Italic
  ${fontFaceMixin('myFontName', src, 'normal', 'italic')};

  body {
    font-family: 'myFontName';
  }
`;

React components utils

Breakpoint hooks for React

If you don't want to render some component when in mobile use useBreakpoint (checking window's innerWidth) or useBreakpointHeight (checking window's innerHeight) hook.

import { useBreakpoint, breakpoints }  from 'css-in-js-styles-utils';

const SomeComponent = (props) => {
  // return true if window inner width is smaller or equle of provided breakpoint
  const isMobile = useBreakpoint(breakpoints.phone);
  
  return (
    <React.Fragment>
      <div>This I want to show alway.</div>
      {
        isMobile ? (
          <div>But this ony on mobile.</div>
        ) : null
      }
    </React.Fragment>
  );
};

Licence

This project uses MIT Licence

Contributing

If you want to contribute read the contributing guidelines before opening an issue or pull request [WIP].

Style guide

This project uses Kamisama style guidelines: IF.Kamisama.