form-stamp/form-stamp.js

44 lines
1.6 KiB
JavaScript

/* jshint esversion: 6 */
const defaults = {
nameToReplace: 'idx',
removeSelector: '.remove'
}
export function formStamp(element, options = {})
{
const {
nameToReplace,
removeSelector
} = { ...defaults, ...element.dataset, ...options };
const container = element.parentElement;
const template = element.querySelector('template');
const itemSelector = '.' + template.content.firstElementChild.className.replace(/ /g, '.');
const initialItemCount = container.querySelectorAll(itemSelector).length;
let created = 0;
const removeRow = (element) => () => {
const rowToDelete = element.closest(itemSelector);
// Flow renders identity fields directly at the form tag, so we need to look
if (rowToDelete.dataset.stampRemoveWithMe) {
container.closest('form')
.querySelectorAll(rowToDelete.dataset.stampRemoveWithMe)
.forEach(child => child.remove())
}
rowToDelete.remove();
}
element.addEventListener('click', () => {
const clone = template.content.cloneNode(true);
clone.querySelectorAll('input, select, textarea').forEach(child => {
child.name = child.name.replace(nameToReplace, initialItemCount + created);
});
clone.querySelectorAll(removeSelector).forEach(child => {
child.onclick = removeRow(child);
});
element.before(clone);
created++;
});
container.querySelectorAll(removeSelector).forEach(child => {
child.onclick = removeRow(child);
});
}
export default formStamp;