Styled Components and the Road to Unification

Presented at Localhost AU Deployment on June 6-9th, 2017

Transcript

1. st yle d component s AND THE ROAD TO UNIFICATION
2. @glenmaddern
3. FRONT END C E N T E R https://frontend.center
4. @glenmaddern https:/ /github.com/css-modules/css-modules https://styled-components.com https://github.com/geelen/react-snapshot react snapshot
5. @glenmaddern
6. @glenmaddern STYLED COMPONENTS AND THE ROAD TO UNIFICATION
7. @glenmaddern CSS-IN-JS
8. https://medium.com/seek-blog/a-unified-styling-language-d0c208de2660
9. • Scoped styles • Critical CSS • Smarter optimisations • Package management • Non-browser styling BENEFITS OF CSS-IN-JS https://medium.com/seek-blog/a-unified-styling-language-d0c208de2660 @markdalgleish
10. https://medium.com/seek-blog/a-unified-styling-language-d0c208de2660 @markdalgleish “WE’VE ALREADY GONE THROUGH A SIMILAR CHANGE WITH HTML... WE ALMOST NEVER SHARE RAW HTML DIRECTLY— WE SHARE HTML-IN-JS.”
11. @glenmaddern EVERYTHING-IN-JS
12. @glenmaddern ✨
13. @glenmaddern UNIFICATION OF SKILLS & UNIFICATION OF PLATFORM
14. @glenmaddern UNIFICATION OF SKILLS CODIFY BEST PRACTICES
15. https://speakerdeck.com/didoo/let-there-be-peace-on-css @areaweb Separation of Concerns Separation of Concerns (only, from a different point of view) JS CSS HTML BUTTON DATE PICKER MODAL LIST LIST-ITEM MEDIA
16. @glenmaddern components/ submit-button/ submit-button.js submit-button.scss nav-bar/ nav-bar.js nav-bar.scss nav-icon.svg signup-form/ signup-form.js signup-form.scss form-backdrop.jpg
17. @glenmaddern
18. @glenmaddern /* styles.css */ .Headline { padding: 4em; background: papayawhip; } .Headline_Text { font-size: 1.5em; text-align: center; color: palevioletred; } <!-- my_page.html --> <!-- ... --> <header class="Headline"> <h1 class="Headline_Text"> My Page Title </h1> </header> <!-- ... -->
19. @glenmaddern /* styles.css */ .Headline { padding: 4em; background: papayawhip; } .Headline_Text { font-size: 1.5em; text-align: center; color: palevioletred; } <!-- my_page.html --> <!-- ... --> <header class="Headline"> <h1 class="Headline_Text"> My Page Title </h1> </header> <!-- ... --> /* src/components/Headline.css */ .Headline { padding: 4em; background: papayawhip; } .Headline_Text { font-size: 1.5em; text-align: center; color: palevioletred; } /* src/components/Headline.js */ import './Headline.css' export default ({ text }) => ( <header className="Headline"> <h1 className="Headline_Text"> { text } </h1> </header> )
20. @glenmaddern
21. @glenmaddern /* src/components/Headline.css */ .Headline { padding: 4em; background: papayawhip; } .Headline_Text { font-size: 1.5em; text-align: center; color: palevioletred; } /* src/components/Headline.js */ import './Headline.css' export default ({ text }) => ( <header className="Headline"> <h1 className="Headline_Text"> { text } </h1> </header> ) /* src/components/Headline.js */ import styles from './Headline.css' export default ({ text }) => ( <header className={ styles.wrapper }> <h1 className={ styles.text }> { text } </h1> </header> ) /* src/components/Headline.module.css */ .wrapper { padding: 4em; background: papayawhip; } .text { font-size: 1.5em; text-align: center; color: palevioletred; }
22. @glenmaddern https:/ /styled-components.com/docs https:/ /github.com/styled-components/styled-components
23. @glenmaddern /* src/components/Headline.js */ import styled from 'styled-components' const Wrapper = styled.header` padding: 4em; background: papayawhip; `; const Text = styled.h1` font-size: 1.5em; text-align: center; color: palevioletred; `; export default ({ text }) => ( <Wrapper> <Text>{ text }</Text> </Wrapper> ) /* src/components/Headline.js */ import styles from './Headline.css' export default ({ text }) => ( <header className={ styles.wrapper }> <h1 className={ styles.text }> { text } </h1> </header> ) /* src/components/Headline.module.css */ .wrapper { padding: 4em; background: papayawhip; } .text { font-size: 1.5em; text-align: center; color: palevioletred; }
24. @glenmaddern UNIFICATION OF SKILLS BRING PEOPLE ALONG
25. @glenmaddern /* EqualDivider.scss */ .EqualDivider { display: flex; margin: 0.5rem; padding: 1rem; background: papayawhip; > * { flex: 1; &:not(:first-child) { margin-left: 1rem; } } } .Box { padding: 0.25rem 0.5rem; background: palevioletred; }
26. @glenmaddern /* EqualDivider.sass */ .EqualDivider display: flex margin: 0.5rem padding: 1rem background: papayawhip > * flex: 1 &:not(:first-child) margin-left: 1rem .Box padding: 0.25rem 0.5rem background: palevioletred
27. @glenmaddern /* EqualDivider.scss */ .EqualDivider { display: flex; margin: 0.5rem; padding: 1rem; background: papayawhip; > * { flex: 1; &:not(:first-child) { margin-left: 1rem; } } } .Box { padding: 0.25rem 0.5rem; background: palevioletred; }
28. @glenmaddern /* EqualDivider.css.js */ const equalDivider = { display: 'flex', margin: '0.5rem', padding: '1rem', background: 'papayawhip', '> *': { flex: 1, '&:not(:first-child)': { marginLeft: '1rem' } } } const box = { padding: '0.25rem 0.5rem', background: 'palevioletred' }
29. @glenmaddern /* EqualDivider.js */ const EqualDivider = styled.div` display: flex; margin: 0.5rem; padding: 1rem; background: papayawhip; > * { flex: 1; &:not(:first-child) { margin-left: 1rem; } } ` const Box = styled.div` padding: 0.25rem 0.5rem; background: palevioletred; `
30. @glenmaddern UNIFICATION OF PLATFORM FOLLOW THE PATH OF LEAST RESISTANCE
31. @glenmaddern const Button = styled.button` font-size: 1em; margin: 1em; padding: 0.25em 1em; border: 2px solid palevioletred; border-radius: 3px; background: palevioletred; color: white; ${props => props.primary && css` background: white; color: palevioletred; `} ` <Button>Option A</Button> <Button primary>Option B</Button>
32. @glenmaddern const vars = { primary: 'palevioletred', secondary: 'white' } const Button = styled.button` font-size: 1em; margin: 1em; padding: 0.25em 1em; border: 2px solid palevioletred; border-radius: 3px; background: ${ vars.primary }; color: ${ vars.secondary }; ${props => props.primary && css` background: ${ vars.secondary }; color: ${ vars.primary }; `} `
33. REACT NATIVE
34. @glenmaddern import styled from 'styled-components/native'; const Wrapper = styled.View` background-color: papayawhip; flex: 1; justify-content: center; align-items: center; `; const Title = styled.Text` font-size: 20px; text-align: center; margin: 10px; color: palevioletred; font-weight: bold; `;
35. @glenmaddern class StyledComponentsNative extends React.Component { render() { return ( <Wrapper> <Title> Hello World, this is my first native styled component! </Title> </Wrapper> ) } }
36. https://microsoft.github.io/reactxp/
37. https://github.com/airbnb/react-sketchapp @jongold
38. @glenmaddern UNIFICATION OF PLATFORM DON’T ADD BAGGAGE
39. @glenmaddern BET ON JS IF YOU LIKE, BUT ALWAYS SERVE HTML
40. https://medium.com/reloading/javascript-start-up-performance-69200f43b201 @addyosmani Parse times for 1MB JavaScript file
41. @glenmaddern PASTE LINK INTO SLACK Static HTML page Client-rendered JS app
42. @glenmaddern LANDING PAGE WEB APP • Static HTML & CSS • Unobtrusive or no JavaScript • Meta tags designed for SEO and social sharing • Simple build step if any • Performance-sensitive • Fully client-rendered • Built using a JS framework • No extraneous metadata • Complex, all-inclusive build & optimisation process • Development-speed- sensitive VS Sharing assets difficult or impossible
43. @glenmaddern https://github.com/gatsbyjs/gatsby https://learnnextjs.com https://github.com/geelen/react-snapshot react snapshot
44. @glenmaddern PROPERTIES OF THE MYTHICAL UNIFIED UI LANGUAGE • It codifies best practices • It brings people along • It's expressive & powerful • It's universally usable
45. t hank you! @glenmaddern https://frontend.center