webseite-grav/plugins/admin/themes/grav/app/forms/form.js

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2021-04-30 11:23:26 +02:00
import $ from 'jquery';
/* Dependencies for checking if changes happened since load on a form
import toastr from '../utils/toastr';
import { translations } from 'grav-config';
import { Instance as FormState } from './state';
*/
export default class Form {
constructor(form) {
this.form = $(form);
if (!this.form.length || this.form.prop('tagName').toLowerCase() !== 'form') { return; }
/* Option for not saving while nothing in a form has changed
this.form.on('submit', (event) => {
if (FormState.equals()) {
event.preventDefault();
toastr.info(translations.PLUGIN_ADMIN.NOTHING_TO_SAVE);
}
}); */
this._attachShortcuts();
this._attachToggleables();
this._attachDisabledFields();
this._submitUncheckedFields();
this.observer = new MutationObserver(this.addedNodes);
this.form.each((index, form) => this.observer.observe(form, { subtree: true, childList: true }));
}
_attachShortcuts() {
// CTRL + S / CMD + S - shortcut for [Save] when available
let saveTask = $('#titlebar [name="task"][value="save"][form="blueprints"]');
if (saveTask.length) {
$(global).on('keydown', function(event) {
const key = String.fromCharCode(event.which).toLowerCase();
if (!event.shiftKey && ((event.ctrlKey && !event.altKey) || event.metaKey) && key === 's') {
event.preventDefault();
saveTask.click();
}
});
}
}
_attachToggleables() {
let query = '[data-grav-field="toggleable"] input[type="checkbox"]';
this.form.on('change', query, (event) => {
let toggle = $(event.target);
let enabled = toggle.is(':checked');
let parent = toggle.closest('.form-field');
let label = parent.find('label.toggleable');
let fields = parent.find('.form-data');
let inputs = fields.find('input, select, textarea, button');
label.add(fields).css('opacity', enabled ? '' : 0.7);
inputs.map((index, input) => {
let isSelectize = input.selectize;
input = $(input);
if (isSelectize) {
isSelectize[enabled ? 'enable' : 'disable']();
} else {
input.prop('disabled', !enabled);
}
});
});
this.form.find(query).trigger('change');
}
_attachDisabledFields() {
let prefix = '.form-field-toggleable .form-data';
let query = [];
['input', 'select', 'label[for]', 'textarea', '.selectize-control'].forEach((item) => {
query.push(`${prefix} ${item}`);
});
this.form.on('mousedown', query.join(', '), (event) => {
let input = $(event.target);
let isFor = input.prop('for');
let isSelectize = (input.hasClass('selectize-control') || input.parents('.selectize-control')).length;
if (isFor) { input = $(`[id="${isFor}"]`); }
if (isSelectize) { input = input.closest('.selectize-control').siblings('select[name]'); }
if (!input.prop('disabled')) { return true; }
let toggle = input.closest('.form-field').find('[data-grav-field="toggleable"] input[type="checkbox"]');
toggle.trigger('click');
});
}
_submitUncheckedFields() {
let submitted = false;
this.form.each((index, form) => {
form = $(form);
form.on('submit', () => {
// workaround for MS Edge, submitting multiple forms at the same time
if (submitted) { return false; }
let formId = form.attr('id');
let unchecked = form.find('input[type="checkbox"]:not(:checked):not(:disabled)');
let submit = form.find('[type="submit"]').add(`[form="${formId}"][type="submit"]`);
if (!unchecked.length) { return true; }
submit.addClass('pointer-events-disabled');
unchecked.each((index, element) => {
element = $(element);
let name = element.prop('name');
let fake = $(`<input type="hidden" name="${name}" value="0" />`);
form.append(fake);
});
submitted = true;
return true;
});
});
}
addedNodes(mutations) {
mutations.forEach((mutation) => {
if (mutation.type !== 'childList') { return; }
if (mutation.addedNodes) {
$('body').trigger('mutation._grav', mutation.target, mutation, this);
}
if (mutation.removedNodes) {
$('body').trigger('mutation_removed._grav', { target: mutation.target, mutation }, this);
}
});
}
}
export let Instance = new Form('form#blueprints');