Futureproof your Design Systems with Web Components

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Futureproof Design Systems with Web Components Horacio Gonzalez 2020-06-22

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Who are we? Introducing myself and introducing OVH OVHcloud

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Horacio Gonzalez @LostInBrittany Spaniard lost in Brittany, developer, dreamer and all-around geek Flutter

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OVHcloud: A Global Leader 200k Private cloud VMs running 1 Dedicated IaaS Europe 30 Datacenters Own 20Tbps Hosting capacity : 1.3M Physical Servers 360k Servers already deployed Netwok with 35 PoPs

1.3M Customers in 138 Countries

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OVHcloud: 4 Universes of Products WebCloud Domain / Email Domain names, DNS, SSL, Redirect Email, Open-Xchange, Exchange Baremetal Cloud VM General Purpose Baremetal SuperPlan T2 >20e Virtualization T3 >80e Storage PaaS for Web Mutu, CloudWeb Compute Standalone, Cluster Game Collaborative Tools, NextCloud Database T4 >300e Bigdata T5 >600e HCI Plesk, CPanel AI PaaS with Platform.sh VDI Cloud Game Public Cloud 12KVA /32KVA Hosted Private Cloud K8S, IA IaaS PaaS for DevOps Storage File, Block, Object, Archive Databases SQL, noSQL, Messaging, Dashboard Network Virtual servers VPS, Dedicated Server Network VPS aaS pCC DC SaaS CRM, Billing, Payment, Stats IP FO, NAT, LB, VPN, Router, DNS, DHCP, TCP/SSL Offload Virtuozzo Cloud Security Wordpress, Magento, Prestashop Wholesales Hosted Private Cloud IAM, MFA, Encrypt, KMS IT Integrators, Cloud Storage, VMware SDDC, vSAN 1AZ / 2AZ vCD, Tanzu, Horizon, DBaaS, DRaaS Nutanix HCI 1AZ / 2AZ, Databases, DRaaS, VDI OpenStack IAM, Compute (VM, K8S) Stortage, Network, Databases Storage Ontap Select, Nutanix File OpenIO, MinIO, CEPH Zerto, Veeam, Atempo AI ElementAI, HuggingFace, Deepopmatic, Systran, EarthCube Bigdata / Analitics / ML Cloudera over S3, Dataiku, Saagie, Tableau, MarketPlace CDN, Database, ISV, WebHosting Support, Managed High Intensive CPU/GPU, Support Basic Encrypt Support thought Partners KMS, HSM Managed services Encrypt (SGX, Network, Storage) IA, DL Hybrid Cloud Standard Tools for AI, AI Studio, vRack Connect, Edge-DC, Private DC IA IaaS, Hosting API AI Dell, HP, Cisco, OCP, MultiCloud Bigdata, ML, Analytics Datalake, ML, Dashboard Secured Cloud GOV, FinTech, Retail, HealtCare

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Disclaimer Before going further…

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A talk for devs by a dev I am not a designer, neither I play one on TV…

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Design isn’t only look and feel Look and feel must be a emanation of brand’s ethos, values and spirit

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Example

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Design principles Grounding principles and values emanating from the brand ethos, shared by everybody around the product.

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Example of Design Principles: Pinterest https://medium.com/@suprb/redesigning-pinterest-block-by-block-6040a00d80a3

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Example of Design Principles: gov.uk https://www.gov.uk/guidance/government-design-principles

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Functional Patterns Functional patterns are the building blocks of the user interface. They must guide and facilitate user’s behavior.

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Functional Patterns Example: Netflix

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Perceptual Patterns Perceptual patterns are visual elements defining the look of the product: typography, color palette, illustration styles, layout shapes, textures… They should help to express the brand image.

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Perceptual Patterns Example: Slack

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Shared Languages A product team need to share a pattern language based on design principles, to create a coherent set of functional and perceptual patterns.

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Shared Languages Example: Future Learn

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So, what are Design Systems? And why should I look at them?

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The same or different?

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Style Guides A document listing the styles, patterns, practices, and principles of a brand design standards

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Style Guides Style guides define the application’s look and feel

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Style Guide Example: Uber https://brand.uber.com/

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Style Guide Example: Medium https://www.behance.net/gallery/7226653/Medium-Brand-Development

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Style Guides alone are ambiguous Interpretation needed to adapt the preconisation to the use case

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Component Catalogs A component catalog is a repository of components, with one or several implementations, code examples and technical documentation

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Component Catalog example: Bootstrap https://getbootstrap.com/

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Component Catalog Example: ING’s Lion https://lion-web-components.netlify.app/

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Component Catalogs alone create inconsistency Like using the same LEGO bricks to create very different objects

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Design Systems A Design System is like a common visual language for product teams

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Design systems A Design System is a set of design standards, documentations, and principles, alongside with the toolkit (UI patterns and code components) to achieve those standards

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Design systems

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Example: Carbon Design System https://www.carbondesignsystem.com/

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Example: Firefox’s Photon Design System https://design.firefox.com/photon/

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Example: Material Design https://material.io/

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The component catalog The poor relative of the Design System family

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Let’s choose a simple example Bootstrap based component catalogs

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A long time ago Components were defined in HTML, CSS and some jQuery

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Then it was AngularJS time… And new reference implementations were needed

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But you know the sad story… All UI Bootstrap based catalogs woke up with an obsolete implementation

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Worry no more, let’s do Angular! ng-bootstrap to the rescue

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But times had changed… In 2017 Angular is only one more in the clique

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TM React is the new Big Thing So let’s build React Bootstrap…

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Wait, what about Vue? We also need BootstrapVue

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OK, I think you see my point…

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Most Design System do a choice Either they choose a by canonical implementation or they ship and maintain several implementations

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Both choices are problematic Shipping only one implementation: Web dev ecosystem changes quickly and almost nobody keeps the same framework for years…

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Both choices are problematic Shipping several implementations: You need to maintain all the implementation… and you still miss some others

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Incomplete catalogs are problematic People will need to recode the components in their chosen framework… Coherence is not guaranteed!!!

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Example: Carbon Design System

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The 3 minutes context What the heck are web component?

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Web Components Web standard W3C

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Web Components Available in all modern browsers: Firefox, Safari, Chrome

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Web Components Create your own HTML tags Encapsulating look and behavior

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Web Components Fully interoperable With other web components, with any framework

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Web Components CUSTOM ELEMENTS SHADOW DOM TEMPLATES

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Custom Element To define your own HTML tag <body> … <script> window.customElements.define(‘my-element’, class extends HTMLElement {…}); </script> <my-element></my-element> </body>

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Shadow DOM To encapsulate subtree and style in an element <button>Hello, world!</button> <script> var host = document.querySelector(‘button’); const shadowRoot = host.attachShadow({mode:’open’}); shadowRoot.textContent = ‘こんにちは、影の世界!’; </script>

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Template To have clonable document template <template id=”mytemplate”> <img src=”” alt=”great image”> <div class=”comment”></div> </template> var t = document.querySelector(‘#mytemplate’); // Populate the src at runtime. t.content.querySelector(‘img’).src = ‘logo.png’; var clone = document.importNode(t.content, true); document.body.appendChild(clone);