Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
Web Components: Where we are now, and what’s next?
Search
Peter Gasston
June 19, 2015
Technology
1
220
Web Components: Where we are now, and what’s next?
Responsive Day Out, 19/06/15.
Peter Gasston
June 19, 2015
Tweet
Share
More Decks by Peter Gasston
See All by Peter Gasston
People Don’t Change
stopsatgreen
0
150
Your Reality Here
stopsatgreen
0
88
Growing Up, Getting Serious - #SotB6
stopsatgreen
1
340
Growing Up, Getting Serious
stopsatgreen
0
86
Surveying the Landscape — November 2016
stopsatgreen
1
160
Surveying the Landscape - Fronteers
stopsatgreen
2
470
The Web vs. The Browser
stopsatgreen
0
180
Surveying the Landscape Sept. 2016
stopsatgreen
1
370
Surveying the Landscape
stopsatgreen
4
810
Other Decks in Technology
See All in Technology
Claude Code に プロジェクト管理やらせたみた
unson
6
4.2k
面倒な作業はAIにおまかせ。Flutter開発をスマートに効率化
ruideengineer
0
260
【5分でわかる】セーフィー エンジニア向け会社紹介
safie_recruit
0
27k
Delta airlines®️ USA Contact Numbers: Complete 2025 Support Guide
airtravelguide
0
340
いつの間にか入れ替わってる!?新しいAWS Security Hubとは?
cmusudakeisuke
0
130
Sansanのデータプロダクトマネジメントのアプローチ
sansantech
PRO
0
160
AWS認定を取る中で感じたこと
siromi
1
190
Lazy application authentication with Tailscale
bluehatbrit
0
220
成長し続けるアプリのためのテストと設計の関係、そして意思決定の記録。
sansantech
PRO
0
120
PO初心者が考えた ”POらしさ”
nb_rady
0
210
対話型音声AIアプリケーションの信頼性向上の取り組み
ivry_presentationmaterials
1
110
american airlines®️ USA Contact Numbers: Complete 2025 Support Guide
supportflight
1
110
Featured
See All Featured
Sharpening the Axe: The Primacy of Toolmaking
bcantrill
44
2.4k
Done Done
chrislema
184
16k
Building a Scalable Design System with Sketch
lauravandoore
462
33k
For a Future-Friendly Web
brad_frost
179
9.8k
Let's Do A Bunch of Simple Stuff to Make Websites Faster
chriscoyier
507
140k
The Art of Delivering Value - GDevCon NA Keynote
reverentgeek
15
1.5k
GraphQLとの向き合い方2022年版
quramy
49
14k
Design and Strategy: How to Deal with People Who Don’t "Get" Design
morganepeng
130
19k
Java REST API Framework Comparison - PWX 2021
mraible
31
8.7k
A Modern Web Designer's Workflow
chriscoyier
695
190k
Reflections from 52 weeks, 52 projects
jeffersonlam
351
20k
Mobile First: as difficult as doing things right
swwweet
223
9.7k
Transcript
@stopsatgreen Web Components: where we are now, and what next?
Responsive Day Out 19/06/15
@stopsatgreen Peter Gasston @stopsatgreen broken-links.com
@stopsatgreen For the designers.
@stopsatgreen Web Components have been around for a while.
@stopsatgreen In a trough on the hype cycle.
@stopsatgreen Everybody’s in… but that means trouble.
@stopsatgreen Web Components enable us to create widgets. CSS JS
Widget Widget Widget
@stopsatgreen Composable, reusable, encapsulated. CSS JS Widget Widget Widget
@stopsatgreen We run things, things don’t run we, don’t take
nothing from nobody.
@stopsatgreen React, BEM, etc. are ways of doing this using
the technologies of today.
@stopsatgreen The Extensible Web Manifesto. extensiblewebmanifesto.org <picture> <source srcset="foo.png" media="(min-width:
600px)"> <img src="bar.png" alt="Logo"> </picture>
@stopsatgreen Web Components are: Templates, HTML Imports, Custom Elements, Shadow
DOM.
@stopsatgreen Templates. Reusable fragments of inert HTML.
@stopsatgreen <script type="text/x-tmpl-mustache"> … </script> <template>…</template>
@stopsatgreen Templates. OK to use, with fallback for IE/Edge.
@stopsatgreen HTML Imports. Include HTML documents in an HTML document.
@stopsatgreen <link rel="import" href="file.html"> // file.js export foo; // page.js
import foo from "file.js";
@stopsatgreen HTML Imports. Will probably be replaced by ES6 modules.
@stopsatgreen Shadow DOM. Hide complex markup inside an element.
@stopsatgreen root = el.createShadowRoot({ mode: 'open' }); root.innerHTML = '<div>…</div>';
@stopsatgreen Shadow DOM is very hard to polyfill.
@stopsatgreen Shadow DOM. Lots still to be defined.
@stopsatgreen Custom Elements. Meaningful markup with bespoke properties.
@stopsatgreen <fun-times></fun-times> document.registerElement('fun-times');
@stopsatgreen <fun-times> = HTMLElement <funtimes> = HTMLUnknownElement document.registerElement('fun-times'); <fun-times> =
fun-times
@stopsatgreen fTs = document.querySelector('fun-times'); fTs.hooray(); p = Object.create(HTMLElement.prototype); p.hooray =
function() {…}; document.registerElement('fun-times', { prototype: p });
@stopsatgreen // ES6 approach (not final) class fTs extends HTMLElement
{…} document.registerElement('fun-times', fTs); ES6 offers a better way to do this.
@stopsatgreen Custom Elements. Approach is sound, some details to finalise.
@stopsatgreen is A major sticking point.
@stopsatgreen p = Object.create(HTMLButtonElement.prototype); document.registerElement('fun-times', { prototype: p, extends: 'button'
}); <button is="fun-times"></button>
@stopsatgreen is isn’t (probably)
@stopsatgreen In summary: welcome to the trough of disillusionment.
@stopsatgreen A tour of the sausage factory.
@stopsatgreen This is our big opportunity. We need to get
this right.
@stopsatgreen A11y, usability, SEO, etc, become our responsibility.
@stopsatgreen Sturgeon’s Revelation: 90% of everything is crap.
@stopsatgreen The Gold Standard. github.com/webcomponents/gold-standard/wiki
@stopsatgreen Loading, DOM Presence, Content, Interaction, API, Styling, Performance, Localisation,
Factoring, Development.
@stopsatgreen Unix philosophy: every component does one job.
@stopsatgreen Learn a library first, then vanilla.
@stopsatgreen
@stopsatgreen Everybody’s in. but that means trouble. …
@stopsatgreen Cheers.
@stopsatgreen Reading list: • webcomponents.org/articles/why-web-components/ • hacks.mozilla.org/2015/06/the-state-of-web-components/ • aerotwist.com/blog/polymer-for-the-performance-obsessed/ •
tjvantoll.com/speaking/slides/Web-Components-Catch/San-Francisco/ web-components-catch.pdf • w3.org/2015/04/24-webapps-minutes.html • … and many, many more.