Book Image

Drupal 8 Development Cookbook - Second Edition

By : Matt Glaman
Book Image

Drupal 8 Development Cookbook - Second Edition

By: Matt Glaman

Overview of this book

Began as a message board, Drupal today is open source software maintained and developed by a community of over 1,000,000 users and developers. Drupal is used by numerous local businesses to global corporations and diverse organizations all across the globe. With Drupal 8’s exciting features it brings, this book will be your go-to guide to experimenting with all of these features through helpful recipes. We’ll start by showing you how to customize and configure the Drupal environment as per your requirements, as well as how to install third-party libraries and then use them in the Drupal environment. Then we will move on to creating blocks and custom modules with the help of libraries. We will show you how to use the latest mobile-first feature of Drupal 8, which will help you make your apps responsive across all the major platforms. This book will also show you how to incorporate multilingual facilities in your sites, use web services and third-party plugins with your applications from inside Drupal 8, and test and deploy your apps.
Table of Contents (20 chapters)
Title Page
Credits
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface

Using the new asset management system


The asset management system is the most recent one to Drupal 8. The asset management system allows modules and themes to register libraries. Libraries define CSS style sheets and JavaScript files that need to be loaded with the page. Drupal 8 takes this approach for the frontend performance. Rather than loading all CSS or JavaScript assets, only those required for the current page in the specified libraries will be loaded.

In this recipe, we will define a libraries.yml file that will define a CSS style sheet and JavaScript file provided by a custom theme.

Getting ready

This recipe assumes that you have created a custom theme, such as the one you created in the first recipe. When you see mytheme in this recipe, use the machine name of the theme that you created.

How to do it...

  1. Create a folder named css in your theme's base directory.
  2. In your css folder, add a style.css file that will hold the theme's CSS declarations. For the purpose of demonstration, add...