123 lines
5.8 KiB
Common Lisp
123 lines
5.8 KiB
Common Lisp
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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(in-package #:live-chat-ui)
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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(defvar *default-prefix* "/lisp-chat")
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(defun set-subpath-prefix (prefix)
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(setf *default-prefix* prefix))
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(defun subpath-prefix (path)
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(format nil "~a~a" *default-prefix* path))
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Render chat messages
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(defun render-chat-messages ()
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"Render the list of chat messages as HTML."
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(let ((messages (fetch-messages)))
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(if messages
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(cl-who:with-html-output-to-string (*standard-output* nil :indent t)
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(loop for msg in messages
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do (cl-who:htm
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(:div :class "box"
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:style "overflow: auto;"
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(cl-who:str msg)))))
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"")))
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;; Render chat UI
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(defun render-chat-ui ()
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"Render the main chat page with HTMX integration."
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(cl-who:with-html-output-to-string (*standard-output* nil :prologue t :indent t)
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(:html :lang "en"
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:class "has-navbar-fixed-bottom"
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(:head
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(:meta :charset "utf-8")
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(:meta :name "viewport" :content "width=device-width, initial-scale=1")
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(:title "Live Chat")
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(:link :rel "stylesheet"
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:href "https://cdnjs.cloudflare.com/ajax/libs/bulma/1.0.2/css/bulma.min.css"
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:integrity "sha512-RpeJZX3aH5oZN3U3JhE7Sd+HG8XQsqmP3clIbu4G28p668yNsRNj3zMASKe1ATjl/W80wuEtCx2dFA8xaebG5w=="
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:crossorigin "anonymous"
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:referrerpolicy "no-referrer")
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(:script :src "https://cdnjs.cloudflare.com/ajax/libs/htmx/2.0.3/htmx.min.js"
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:integrity "sha512-dQu3OKLMpRu85mW24LA1CUZG67BgLPR8Px3mcxmpdyijgl1UpCM1RtJoQP6h8UkufSnaHVRTUx98EQT9fcKohw=="
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:crossorigin "anonymous"
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:referrerpolicy "no-referrer")
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;; (:script :src "https://cdnjs.cloudflare.com/ajax/libs/htmx/2.0.3/ext/ws.min.js"
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;; :integrity "sha512-1OIiXEswZd/etj60BUwFmyoi0OhrWdoYlzayJpSBivoMV0pQPIQr+vtAn3W3htsbWtLRU8DrBl0epdK4DQbj/w=="
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;; :crossorigin "anonymous"
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;; :referrerpolicy "no-referrer")
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)
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(:body
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(:section :class "section"
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(:div :class "container"
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;; :hx-ext "ws"
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;; :ws-connect (subpath-prefix "/ws-chat-messages")
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(:div :class "container"
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:id "chat-messages"
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;; :hx-get "/chat-messages"
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(cl-who:str (render-chat-messages)))))
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(:nav :role "navigation"
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:class "navbar is-fixed-bottom is-spaced has-shadow"
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:aria-label "main navigation"
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(:div :class "navbar-brand"
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(:a :class "navbar-item"
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:href "https://phntsm.ddns.net/"
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(:img :src "/favicon.png"
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:alt "icon"))
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(:a :role "button"
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:class "navbar-burger"
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:aria-label "menu"
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:aria-expanded "false"
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:data-target "navbarBasicExample"
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(:span :aria-hidden "true")
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(:span :aria-hidden "true")
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(:span :aria-hidden "true")
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(:span :aria-hidden "true")))
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(:div :class "navbar-menu is-active"
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:id "navbarBasicExample"
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(:div :class "navbar-start"
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:style "display: none;")
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(:div :class "navbar-middle container"
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(:div :class "field has-addons"
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(:div :class "control is-expanded"
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(:input :class "input"
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:id "chat-input"
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:autocomplete "off"
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:placeholder "Enter your message..."
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:type "text" :name "message"))
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(:div :class "control"
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(:button :class "button is-link is-light"
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:type "submit" "Send"))))
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(:div :class "navbar-end"
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:style "display: none;")))
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(:script (cl-who:str (js-snippet (subpath-prefix "/ws-chat-messages"))))))))
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(defun js-snippet (path)
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(format nil
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"function receivedMessage(msg) {
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document.querySelector('#chat-messages').insertAdjacentHTML('afterbegin', msg.data);
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}
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const ws = new WebSocket('wss://' + window.location.host + '~a');
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ws.addEventListener('message', receivedMessage);
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const inputField = document.getElementById('chat-input');
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inputField.addEventListener('keyup', (evt) => {
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if (evt.key === 'Enter') {
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ws.send(evt.target.value);
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evt.target.value = '';
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}
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});
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// https://bulma.io/documentation/components/navbar/#navbar-menu
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document.addEventListener('DOMContentLoaded', () => {
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const $navbarBurgers = Array.prototype.slice.call(document.querySelectorAll('.navbar-burger'), 0);
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// Add a click event on each of them
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$navbarBurgers.forEach( el => {
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el.addEventListener('click', () => {
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const target = el.dataset.target;
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const $target = document.getElementById(target);
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el.classList.toggle('is-active');
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$target.classList.toggle('is-active');
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});
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});
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});" path))
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