#+title: Using cl-sbt/accordion Macros in a Web Application
#+author: Marcus Kammer
#+email: marcus.kammer@mailbox.org
#+date: [2023-09-02 Sat]
* Introduction
The accordion component is a popular UI element that helps to organize and
present content in a space-efficient manner. Accordions consist of a list of
headers that users can click on to toggle the visibility of associated content.
This is particularly useful for presenting large amounts of information in a
confined space while keeping the interface clean and uncluttered. The Accordion
component is perfect for FAQ sections, multi-part forms, or any situation where
you need to present the user with a range of options or information, but you
want to keep the interface uncluttered by hiding content that isn't immediately
necessary.
** Bootstrap Accordions
[[https://getbootstrap.com/docs/][Bootstrap]] is a popular front-end framework that provides ready-to-use
components for building responsive and modern web applications. One of its
components is the [[https://getbootstrap.com/docs/5.3/components/accordion/][accordion]], which enhances the user experience by providing a
user-friendly way to display and interact with content.
*** How Bootstrap Accordions Work
Bootstrap accordions are created using HTML, CSS, and JavaScript. The Bootstrap
JavaScript library adds the necessary interactivity to the accordion. Here's
how it works:
- Each accordion item consists of a header and content section.
- Clicking on an accordion item's header toggles the visibility of its content.
- By default, only one item's content is visible at a time. Clicking on a
header closes any open content before opening the clicked item's content.
- Bootstrap's JavaScript library manages the animations and transitions for
smooth content expansion and collapse.
* Integrating cl-sbt/accordion Macros
To create Bootstrap-style accordions in your Common Lisp web application, you
can use the cl-sbt/accordion macros. These macros provide a convenient way to
generate the necessary HTML structure for accordion components. Here's how you
can integrate them into your project:
#+begin_src lisp
(defpackage my-web-app
(:use :cl :cl-sbt/accordion)
(:export :generate-accordion-page))
(in-package :my-web-app)
(defun generate-accordion-page ()
"Generates an HTML page with an accordion using cl-sbt/accordion macros."
(spinneret:with-html-string
(:html
(:head
(:title "Accordion Example")
;; Include Bootstrap CSS and JavaScript links here
)
(:body
(:h1 "Accordion Example")
(accordion "myAccordion"
(:target "collapseOne" :name "Section 1" :show t :content "Content for section 1.")
(:target "collapseTwo" :name "Section 2" :content "Content for section 2.")
(:target "collapseThree" :name "Section 3" :content "Content for section 3."))
;; Include Bootstrap JavaScript initialization script here
))))
(generate-accordion-page)
#+end_src
#+RESULTS:
#+begin_example
Accordion Example
Accordion Example
#+end_example
This example demonstrates how to integrate the cl-sbt/accordion macros into a
web application to create an interactive accordion component. The macros help
generate the necessary HTML structure for the accordion, which allows users to
navigate through content conveniently.