/**
* Hyperclay Newsletter Form
* A self-contained, embeddable newsletter signup form
*
* Usage:
*
*
*
*
* Options:
* hyperclayNewsletterify(el, {
* tags: ['custom-tag'], // Additional tags for the subscriber
* onSuccess: (email) => {}, // Called after successful subscription
* onError: (error) => {} // Called on error
* });
*/
(function(global) {
'use strict';
// Embedded SVG icons as data URIs
const ICONS = {
// Newsletter icon - stylized envelope with checkmark
newsletter: `data:image/svg+xml,${encodeURIComponent(``)}`,
// Corner decorations - pixelated blocks
cornerTopLeft: `data:image/svg+xml,${encodeURIComponent(``)}`,
cornerBottomRight: `data:image/svg+xml,${encodeURIComponent(``)}`,
// Toast icons
toastSuccess: ``,
toastError: ``
};
// Scoped styles
const STYLES = `
.hc-newsletter-form {
position: relative;
max-width: 400px;
margin-left: auto;
margin-right: auto;
padding-bottom: 16px;
font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
box-sizing: border-box;
}
@media (min-width: 640px) {
.hc-newsletter-form {
max-width: 500px;
padding-bottom: 48px;
}
}
.hc-newsletter-form *,
.hc-newsletter-form *::before,
.hc-newsletter-form *::after {
box-sizing: border-box;
}
.hc-newsletter-header {
margin-bottom: 15px;
text-align: center;
color: #fff;
font-size: 16px;
}
.hc-newsletter-icon {
position: relative;
top: -4px;
display: inline-block;
height: 24px;
vertical-align: middle;
margin-left: 4px;
}
.hc-input-wrapper {
position: relative;
height: 40px;
margin-bottom: 25px;
transition: box-shadow 0.15s ease;
}
.hc-input-wrapper:focus-within {
box-shadow: 0 0 0 4px #0B0C12, 0 0 0 6px #fff;
}
.hc-honeypot {
position: absolute;
left: -9999px;
opacity: 0;
pointer-events: none;
}
.hc-email-input {
position: absolute;
inset: 0;
width: 100%;
height: 100%;
padding-top: 9px;
text-align: center;
color: #1e293b;
background: #fff;
border: none;
outline: none;
font-size: 16px;
}
.hc-email-input::placeholder {
color: #94a3b8;
}
.hc-corner-tl {
position: absolute;
top: -1px;
left: -1px;
width: 30px;
height: 30px;
pointer-events: none;
}
.hc-corner-br {
position: absolute;
bottom: -1px;
right: -1px;
width: 28px;
height: 28px;
pointer-events: none;
}
.hc-button-wrapper {
text-align: center;
}
.hc-submit-btn {
font-family: 'Fixedsys Excelsior', 'Fixedsys', 'Consolas', 'Courier New', monospace;
text-align: center;
cursor: pointer;
border-width: 3px;
border-style: solid;
border-top-color: #474C65;
border-right-color: #131725;
border-bottom-color: #131725;
border-left-color: #474C65;
background-color: #1D1F2F;
padding: 4px 44px 7px;
font-size: 23px;
color: #fff;
transition: background-color 0.1s ease;
}
@media (min-width: 640px) {
.hc-submit-btn {
padding: 4px 50px 7px;
font-size: 25px;
}
}
.hc-submit-btn:hover {
background-color: #232639;
}
.hc-submit-btn:active {
border-top-color: #131725;
border-right-color: #474C65;
border-bottom-color: #474C65;
border-left-color: #131725;
}
.hc-submit-btn:active .hc-btn-text {
transform: translate(1.5px, 1.5px);
}
.hc-btn-text {
display: inline-block;
white-space: nowrap;
user-select: none;
transition: transform 0.05s ease;
}
/* Toast styles */
.hc-toast-container {
z-index: 9999;
position: fixed;
top: 20px;
right: 20px;
display: flex;
flex-direction: column;
align-items: flex-end;
}
.hc-toast-container > * + * {
margin-top: 18px;
}
.hc-toast {
position: relative;
right: 0;
display: flex;
align-items: center;
padding: 10px 19px 11px 17px;
cursor: pointer;
color: rgba(255,255,255,.8);
background-color: #0B0C12;
border: 2px dashed rgba(255,255,255,.6);
transition: right 0.5s ease-in-out, opacity 0.5s ease-in-out;
font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
font-size: 14px;
}
.hc-toast svg {
position: relative;
top: -1px;
width: 17px;
height: 17px;
margin-right: 13px;
flex-shrink: 0;
}
.hc-toast.hc-hide {
right: -300px;
opacity: 0;
}
.hc-toast.hc-success {
color: #76C824;
border: 2px dashed #589E11;
}
.hc-toast.hc-error {
color: #DD304F;
border: 2px dashed #CD2140;
}
`;
// Buttondown API configuration
const API_TOKEN = '8b1688f6-5a75-4c45-8da8-09f71d9a5c3b';
const API_URL = 'https://api.buttondown.com/v1/subscribers';
// Inject styles once
let stylesInjected = false;
function injectStyles() {
if (stylesInjected) return;
if (document.getElementById('hc-newsletter-styles')) {
stylesInjected = true;
return;
}
const styleEl = document.createElement('style');
styleEl.id = 'hc-newsletter-styles';
styleEl.textContent = STYLES;
document.head.appendChild(styleEl);
stylesInjected = true;
}
// Toast notification system
function showToast(message, type = 'success') {
let container = document.querySelector('.hc-toast-container');
if (!container) {
container = document.createElement('div');
container.className = 'hc-toast-container';
document.body.appendChild(container);
}
const icon = type === 'success' ? ICONS.toastSuccess : ICONS.toastError;
const toast = document.createElement('div');
toast.className = `hc-toast hc-hide hc-${type}`;
toast.innerHTML = `${icon}${message}`;
toast.addEventListener('click', () => {
toast.classList.add('hc-hide');
setTimeout(() => toast.remove(), 500);
});
container.appendChild(toast);
setTimeout(() => toast.classList.remove('hc-hide'), 10);
setTimeout(() => {
toast.classList.add('hc-hide');
setTimeout(() => toast.remove(), 500);
}, 6600);
}
// Generate unique form ID
let formCounter = 0;
function getUniqueId() {
return `hc-newsletter-form-${++formCounter}`;
}
/**
* Insert a fully styled Hyperclay newsletter form into an element
* @param {HTMLElement} el - The container element
* @param {Object} options - Optional configuration
* @param {string[]} options.tags - Additional tags for the subscriber (default: ['embedded-form', 'newsletter'])
* @param {Function} options.onSuccess - Called after successful subscription with email
* @param {Function} options.onError - Called on error with error object
* @returns {HTMLFormElement} The created form element
*/
function hyperclayNewsletterify(el, options = {}) {
if (!el || !(el instanceof HTMLElement)) {
console.error('hyperclayNewsletterify: Invalid element provided');
return null;
}
injectStyles();
const formId = getUniqueId();
const tags = options.tags || ['embedded-form', 'newsletter'];
const form = document.createElement('form');
form.id = formId;
form.className = 'hc-newsletter-form';
form.innerHTML = `
`;
form.addEventListener('submit', function(e) {
e.preventDefault();
const emailInput = form.querySelector('input[type="email"]');
const email = emailInput.value;
const honeypot = form.querySelector('.hc-honeypot');
// Show success immediately (optimistic UI)
setTimeout(() => {
form.reset();
emailInput.focus();
showToast('Subscribed!', 'success');
if (options.onSuccess) {
options.onSuccess(email);
}
}, 500);
// Bot check
if (honeypot && honeypot.value !== '') {
return;
}
// Submit to Buttondown API
fetch(API_URL, {
method: 'POST',
headers: {
'Content-Type': 'application/json',
'Authorization': `Token ${API_TOKEN}`
},
body: JSON.stringify({
email_address: email,
tags: tags
})
}).catch(error => {
if (options.onError) {
options.onError(error);
}
});
});
el.appendChild(form);
return form;
}
// Expose to global scope
global.hyperclayNewsletterify = hyperclayNewsletterify;
})(typeof window !== 'undefined' ? window : this);