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Shiny!

A shiny WordPress starter framework for building modern performant web apps

This is the personal starter framework that I use when starting new WordPress projects, partly inspired by work within the React/JAMstack ecosystem. It is a collection of code and patterns that I have built up over the years, including a custom scss/css framework that is sort of like an extendible hybrid of Bootstrap and Tailwind. This repository and README are works in progress, and although this codebase is for personal use I figured I would give a quick breakdown of what is in here.

🎂 Features

  • Performance first. Everything is built with the intention of being as modular and lightweight as possible for Lighthouse.

  • Component-based architecture similar to React organized along modified Atom design principles.

  • Modern stack taking advantage of modern technology like PHP7+, next generation Javascript, etc.

  • Optimal image handling with lazyloading, automatic srcset and sizes, etc.

  • Custom SCSS framework leveraging Bootstrap's Utility API to generate or convert utility classes similar to Tailwind's syntax.

  • Lightweight vanilla JS set up and helper functions. React & Preact support included. Alpine.js highly recommended.

  • Custom Gravity Forms frontend rendering for performance, and API endpoint for processing submissions.

  • Frontend build tools with NPM/Yarn, Gulp, Webpack, PostCSS, and Babel.

  • A general affinity for all things related to the legendary saga Firefly.

Live mobile results from full-fledged ecommerce site. Mobile score averages between 84-95 when served from cache, Desktop around 99.

Lighthouse Results

Background

After spending a decent amount of time in the React/JAMstack ecosystem I started questioning whether it was everything I hoped and dreamed it would be. The DX was incredible, React was enjoyable to work with, and it was fun playing around with all of the latest a greatest tools, but among other potential drawbacks I noticed that I wasn't seeing greatly improved Lighthouse scores for my projects. In fact, I started testing many of the popular sites and noticed that every single one had relatively poor Core Web Vitals on mobile — which had now become a ranking factor. This had me then questioning why exactly I was trying to replicate built-in browser capabilities with javascript for general websites, especially with the overhead it came with? For most of my projects this was unnecessary and the honest answer I came up with was that the main benefit I was seeing from this approach was an improved DX and that I was able to use React. It was simply more fun to build with. Since it came with a decent amount of unnecessary overhead/tradeoffs for these use-cases, this was an unacceptable answer.

Long story short, I migrated one of my main projects which is a somewhat involved ecommerce site using this framework. The result was an almost 80% improved mobile Lighthouse score. Since then I have seen similar results for other clients.

While obviously React frameworks are amazing tools and still my gotos for specific kinds of projects, I have been very happy with these results along with trying to leverage constantly improving native browser functionality. If interested, I would highly recommend watching Chris Ferdinandi - The Lean Web

Overview

shiny/                               # → More info soon
├── dist/
├── functions.php
├── index.php
├── package.json
├── screenshot.png
├── lib/
│   ├── api/
|   │   ├── _api.php
│   │   └── API.php
│   ├── forms/
│   │   ├── _forms.php
│   │   └── TrackingAddOn.php
│   ├── integrations/
│   │   └── _integrations.php
│   ├── internal/
│   │   └── _internal.php
│   ├── marketing/
│   │   └── _marketing.php
│   ├── vendor/
│   ├── woocommerce/
│   │   └── _woocommerce.php
│   ├── acf.php
│   ├── admin.php
│   ├── assets.php
│   ├── block-editor.php
│   ├── dev.php
│   ├── extras.php
│   ├── settings.php
│   ├── setup.php
│   └── theme-wrapper.php
├── page-templates/
├── src/
│   ├── components/
│   │   ├── molecules/
│   │   ├── organisms/
│   │   ├── _components.php
|   |   └── Component.php
│   ├── fonts/
│   ├── img/
│   ├── js/
│   ├── pages/
│   ├── _abstracts.scss
│   ├── _bootstrap.scss
│   ├── _config.scss
│   ├── _icons.scss
│   ├── _layout.scss
│   ├── _type.scss
│   ├── _ui.scss
│   ├── _utils.scss
│   ├── global.scss
│   ├── admin.scss
│   ├── admin-head.js
│   ├── admin.js
│   ├── global.js
│   └── head-scripts.js
├── .babelrc
├── .browserlistsrc
├── 404.php
├── admin-menu.json
├── base.php
├── composer.json
├── config.json
├── flex.php
├── functions.php
├── gulpfile.js
├── index.php
├── package.json
├── page.php
├── postcss.config
├── README.md
├── style.css
└── webpack.config.js

Components

Image of code for new demo component

All components extend React.Component — 🤦 I mean \Shiny\Component — which comes with its own set of methods to help with constructing and rendering components. Each component needs to be given a unique handle which is used as its class and file name, and must be placed within its own directory using this handle. Among other features, this allows for smooth autoloading without having to worry about requiring component files wherever you use them. For example, the Image component has Image as its handle, and is found within src/components/molecules/Image/Image.php. All component-specific styles or scripts must be placed within the same directory using the same handle.

Each component needs to have a __construct method which calls the parent's method with the following arguments parent::__construct( {{ComponentHandle}}, __DIR__, $optional_args ). The optional third argument is an array of arguments to pass to the component. For now the only two arguments are a fields argument which takes an associative array and sets properties for your component based on the key value pairs, and an is_preview argument for use within the Block Editor.

Finally, each component needs to have a render() method which outputs its HTML. It can be as flexible and use any parameters you may need (i.e. custom classes, nested components, etc.), however it is suggested that most logic be delegated to either __construct() or other methods. render() should serve as the component's primary view layer. To use component-specific css, use $this->print_styles() before rendering the HTML. For javascript, use $this->print_scripts(). Usually your scripts depend on the component's DOM elements, and if so the method should be placed after the HTML.

Asset Handling

All of WordPress' default frontend assets are disabled by default. This includes jQuery which can be enqueued on a case-by-case basis if needbe. If for some reason you want jQuery to be enqueued globally, you can set "KILL_JQUERY": false within config.json.

Stylesheets

All .scss files prefixed with an underscore will be included within the global stylesheet. This stylesheet will be cached and served on every page so only critical styles should be included. This mostly includes resets, utility classes, fonts/icons, layout, and global UI. Non-critical component-specific styles should be placed within their component's directory with an non-underscored .scss file. During development, this processed stylesheet will be enqueued and served as a standard stylesheet. However, during production the minified styles will be printed within an internal <style> tag rendered above the first occurrence of the component within the HTML, which results in less requests and optimal processing.

All page-specific styles should be placed within src/pages/. They can be applied to any template file by calling the function \Shiny\Assets\print_page_styles( $stylesheet_name ). So if you have homepage-specific styles located in src/pages/home.scss, you can print them on the homepage by calling \Shiny\Assets\print_page_styles( 'home' ). The styles will be handled similar to component-specific styles.

Javascript

Javascript files are handled very similarly to stylesheets. All global scripts should be placed or imported within src/global.js. Component-specific scripts follow the same method as mentioned above.

Link Prefetching

To automatically prefetch on page load, add a data-prefetch-url attribute to the anchor tag (no need for a value). In order to save resources, prefetching will be disabled for mobile devices without a 4g or 5g connection.

In addition, if you would like to automatically prefetch local links once they become visible within the viewport you can set "PREFETCH_LOCAL_LINKS": true with config.json.

Responsive Images

NOTE: For now requires the Advanced Custom Fields plugin

To render responsive images with lazy loading capabilities, use the Image component located in src/components/molecules/Image.php. Basically it takes an ACF image array within its arguments, or builds one using acf_get_attachment(), and then generates the necessary srcset and sizes attributes. This component is a WIP and there are a few additional features, and for more information you can view the file.

SCSS

In terms of methodologies, the files are structured according to a modified Atom design system (molecules and organisms) and classes follow a BEM syntax. All global files and their partials are in the src directory, and all components are broken up into src/components/molecules and src\components\organisms. Each component's class name is in PascalCase with each major sub-element using BEM syntax. So for example you might have a Hero component with a nested Hero__heading element. Modified versions of an element, usually referring to various states or styles, use an is-{{modifier}} syntax. So in this example if you had an italic version of the heading it would look like this: Hero__heading.is-italic.

Bootstrap is utilized as the underlying utility framework with a view modifications. First, it adopts much of Tailwind's syntax with regards to responsive styles and alignment. So instead of Bootstrap's {{property}}-{{breakpoint}}-{{value}} syntax, it uses Tailwind's {{breakpoint}}:{{property}}-{{value}}. So col-md-6 would now look like this: md:col-6. In terms of alignment, instead of Bootstrap's start and end syntax it uses Tailwind's left and right. Finally, there are a few additional custom utility classes included within the global files.

Javascript

Javascript overhead is kept to a minimum. All default WordPress javascript is disabled including jQuery, and while this helps with performance it may cause issues if you choose to utilize a plugin's frontend assets. For instance, the default cart and checkout functionality for Woocommerce requires jQuery to be enqueued on those pages, so you can selectively enqueue it if needbe. If for some reason you want jQuery to be enqueued globally, you can set "KILL_JQUERY": false within config.json. The default head-scripts.js file includes some helpful polyfills for older browsers as well as a helper function for asyncrounously loading subsequent scripts on-demand. global.js is where all global scripts are found. By default this includes a few helpers for toggling states, watching scoll positions, forms, link prefetching, etc. AlpineJS is included as a package and is highly recommended if state management is needed on the frontend.

Admin

Since this framework is used for custom client web apps and not for general themes for public distribution, most backend functionality such as registering Custom Post Types, custom admin UI, REST API endpoints, etc. is located within the theme instead of regulated to separate plugin(s). In fact, plugin usage in general is kept to a minimum other than cases where large pieces of functionality are smoothly handled by well-reputed and regularly maintained plugins. Even at that it is recommended to check impact on frontend performance and to dequeue assets as much as possible. Currently this framework is meant to be used alongside Advanced Custom Fields, usually leveraging ACF Extended.

Build Tools & Package Management

A custom Gulp build process is included for processing front-end assets and generating seperate stylesheets and scripts for components. During the build process, Webpack and Babel are utilized for bundling the javascript and supporting next generation Javascript. React is supported out of the box, however default Preact's compatibility layer is enabled by default.

For styles, PostCSS is used to help with various tasks such as autoprefixing, minifying, and purging unused styles. Purging is accomplished by crawling through all class selectors within .php and .js files and removing any unused classes from stylesheets. To prevent specific selectors from being purged, see https://purgecss.com/safelisting.html

Recommended Best Practices

TODO. Basically these pretty much sum up everything:

https://10up.github.io/Engineering-Best-Practices/

https://github.com/barrel/barrel-dev-best-practices

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A shiny WordPress starter framework for building modern performant web apps

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