fradrive/templates/widgets/form.julius
2019-01-28 22:56:13 +01:00

122 lines
3.8 KiB
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(function() {
'use strict';
window.utils = window.utils || {};
// registers input-listener for each element in <inputs> (array) and
// enables <button> if <validation> for these inputs returns true
window.utils.reactiveButton = function(form, button, validation) {
var requireds = Array.from(form.querySelectorAll('[required]'));
if (requireds.length == 0) {
return false;
}
if (typeof button.dataset.formnorequired !== 'undefined' && button.dataset.formnorequired !== null) {
button.addEventListener('click', function() {
form.submit();
});
return false;
}
updateButtonState();
requireds.forEach(function(el) {
var checkbox = el.getAttribute('type') === 'checkbox';
var eventType = checkbox ? 'change' : 'input';
el.addEventListener(eventType, function() {
updateButtonState();
});
});
function updateButtonState() {
if (validation.call(null, requireds) === true) {
button.removeAttribute('disabled');
} else {
button.setAttribute('disabled', 'true');
}
}
};
window.utils.interactiveFieldset = function(form, fieldSets) {
var fields = fieldSets.map(function(fs) {
return {
fieldSet: fs,
condId: fs.dataset.conditionalId,
condValue: fs.dataset.conditionalValue,
condEl: form.querySelector('#' + fs.dataset.conditionalId),
};
}).filter(function(field) {
return !!field.condEl;
});
function updateFields() {
fields.forEach(function(field) {
field.fieldSet.classList.toggle('hidden', field.condEl.value !== field.condValue);
});
}
function addEventListeners() {
fields.forEach(function(field) {
field.condEl.addEventListener('input', updateFields)
});
}
if (fieldSets.length) {
addEventListeners();
updateFields();
}
};
})();
document.addEventListener('setup', function(e) {
if (e.detail.module && e.detail.module !== 'showHide')
return;
var forms = e.detail.scope.querySelectorAll('form');
Array.from(forms).forEach(function(form) {
// auto reactiveButton submit-buttons with required fields
var submitBtns = Array.from(form.querySelectorAll('[type=submit]:not([formnovalidate])'));
submitBtns.forEach(function(submitBtn) {
window.utils.reactiveButton(form, submitBtn, validateForm);
});
// auto conditonal fieldsets
var fieldSets = Array.from(form.querySelectorAll('fieldset[data-conditional-id][data-conditional-value]'));
window.utils.interactiveFieldset(form, fieldSets);
});
function validateForm(inputs) {
var done = true;
inputs.forEach(function(inp) {
var len = inp.value.trim().length;
if (done && len === 0) {
done = false;
}
});
return done;
}
});
document.addEventListener('DOMContentLoaded', function() {
document.dispatchEvent(new CustomEvent('setup', { detail: { scope: document.body, module: 'showHide' }, bubbles: true, cancelable: true }))
});
document.addEventListener('setup', function(e) {
if (e.detail.module && e.detail.module !== 'autoSubmit')
return;
Array.from(e.detail.scope.querySelectorAll('[data-autosubmit]:not(.js-initialized)')).forEach(function(elem) {
if ((elem instanceof HTMLInputElement && elem.type == 'submit') || (elem instanceof HTMLButtonElement && elem.type == 'submit')) {
var ancestor = elem.closest('.form-group');
var target = ancestor || elem;
target.classList.add('hidden');
}
elem.classList.add('js-initialized');
});
});
document.addEventListener('DOMContentLoaded', function() {
document.dispatchEvent(new CustomEvent('setup', { detail: { scope: document.body, module: 'autoSubmit' }, bubbles: true, cancelable: true }))
});