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/**
* @copyright Copyright (C) 2005 - 2018 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE.txt
*/
// Only define the Joomla namespace if not defined.
Joomla = window.Joomla || {};
!(function(document) {
"use strict";
/**
* JField 'showon' feature.
*/
window.jQuery && (function($) {
/**
* Method to check condition and change the target visibility
* @param {jQuery} target
* @param {Boolean} animate
*/
function linkedoptions(target, animate) {
var showfield = true,
jsondata = target.data('showon-gsl') || [],
itemval, condition, fieldName, $fields;
// Check if target conditions are satisfied
for (var j = 0, lj = jsondata.length; j < lj; j++) {
condition = jsondata[j] || {};
fieldName = condition.field;
$fields = $('[name="' + fieldName + '"], [name="' + fieldName + '[]"]');
condition['valid'] = 0;
// Test in each of the elements in the field array if condition is valid
$fields.each(function() {
var $field = $(this);
if ($field.prop("tagName").toLowerCase() == "select")
{
var x = 1;
}
// If checkbox or radio box the value is read from properties
if (['checkbox', 'radio'].indexOf($field.attr('type')) !== -1) {
if (!$field.prop('checked')) {
// unchecked fields will return a blank and so always match a != condition so we skip them
return;
}
itemval = $field.val();
}
else {
// select lists, textarea etc. Note that multiple-select list returns an Array here
// se we can always tream 'itemval' as an array
itemval = $field.val();
// a multi-select <select> $field will return null when no elements are selected so we need to define itemval accordingly
if (itemval == null && $field.prop("tagName").toLowerCase() == "select") {
itemval = [];
}
}
// Convert to array to allow multiple values in the field (e.g. type=list multiple)
// and normalize as string
if (typeof itemval == 'string') {
itemval = [ itemval ];
}
else if (typeof itemval !== 'object') {
itemval = JSON.parse('["' + itemval + '"]');
}
// for (var i in itemval) loops over non-enumerable properties and prototypes which means that != will ALWAYS match
// see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/for...in
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/getOwnPropertyNames
// use native javascript Array forEach - see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/forEach
// We can't use forEach because its not supported in MSIE 8 - once that is dropped this code could use forEach instead and not have to use propertyIsEnumerable
//
// Test if any of the values of the field exists in showon conditions
for (var i in itemval) {
// See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/propertyIsEnumerable
// Needed otherwise we pick up unenumerable properties like length etc. and !: will always match one of these !!
if (!itemval.propertyIsEnumerable(i)) {
continue;
}
// ":" Equal to one or more of the values condition
if (jsondata[j]['sign'] == '=' && jsondata[j]['values'].indexOf(itemval[i]) !== -1) {
jsondata[j]['valid'] = 1;
}
// "!:" Not equal to one or more of the values condition
if (jsondata[j]['sign'] == '!=' && jsondata[j]['values'].indexOf(itemval[i]) === -1) {
jsondata[j]['valid'] = 1;
}
}
});
// Verify conditions
// First condition (no operator): current condition must be valid
if (condition['op'] === '') {
if (condition['valid'] === 0) {
showfield = false;
}
}
// Other conditions (if exists)
else {
// AND operator: both the previous and current conditions must be valid
if (condition['op'] === 'AND' && condition['valid'] + jsondata[j - 1]['valid'] < 2) {
showfield = false;
}
// OR operator: one of the previous and current conditions must be valid
if (condition['op'] === 'OR' && condition['valid'] + jsondata[j - 1]['valid'] > 0) {
showfield = true;
}
}
}
// If conditions are satisfied show the target field(s), else hide.
// Note that animations don't work on list options other than in Chrome.
if (animate && !target.is('option')) {
// In fact animations cause drop downs to appear behind each other e.g. on select list 1* in event editing when using chosen!
if (!target[0].classList.contains('gsl-animation-slide-bottom')) {
// target[0].classList.add('gsl-animation-slide-bottom');
}
if (showfield)
{
var isGrid = target[0].classList.contains('gsl-grid') || target[0].parentNode.classList.contains('gsl-grid') || target[0].classList.contains('control-group');
target[0].style.display = isGrid ? 'flex' : (target[0].nodeName.toLowerCase() == 'tr' ? 'table-row' : 'block');
}
else
{
target[0].style.display='none';
}
} else {
if (showfield)
{
var isGrid = target[0].classList.contains('gsl-grid') || target[0].parentNode.classList.contains('gsl-grid') || target[0].classList.contains('control-group');
target[0].style.display = isGrid ? 'flex' : (target[0].nodeName.toLowerCase() == 'tr' ? 'table-row' : 'block');
}
else
{
target[0].style.display='none';
}
if (target.is('option')) {
target.attr('disabled', showfield ? false : true);
// If chosen active for the target select list then update it
var parent = target.parent();
if ($('#' + parent.attr('id') + '_chzn').length) {
parent.trigger("liszt:updated");
parent.trigger("chosen:updated");
}
}
}
try {
var showonChanged = new CustomEvent('gslshowon', {
detail: {
name: 'showonChanged'
}
});
document.dispatchEvent(showonChanged);
}
catch (e) {
}
}
/**
* Method for setup the 'showon' feature, for the fields in given container
* @param {HTMLElement} container
*/
function setUpShowon(container) {
container = container || document;
var $showonFields = $(container).find('[data-showon-gsl]');
// Setup each 'showon' field
for (var is = 0, ls = $showonFields.length; is < ls; is++) {
// Use anonymous function to capture arguments
(function() {
var $target = $($showonFields[is]), jsondata = $target.data('showon-gsl') || [],
field, $fields = $();
// Collect an all referenced elements
for (var ij = 0, lj = jsondata.length; ij < lj; ij++) {
field = jsondata[ij]['field'];
$fields = $fields.add($('[name="' + field + '"], [name="' + field + '[]"]'));
}
// Check current condition for element
linkedoptions($target);
// Attach events to referenced element, to check condition on change
$fields.on('change', function() {
linkedoptions($target, true);
});
})();
}
}
/**
* Initialize 'showon' feature
*/
$(document).ready(function() {
window.setTimeout(setUpShowon, 100);
// Setup showon feature in the subform field
$(document).on('subform-row-add', function(event, row) {
var $row = $(row),
$elements = $row.find('[data-showon-gsl]'),
baseName = $row.data('baseName'),
group = $row.data('group'),
search = new RegExp('\\[' + baseName + '\\]\\[' + baseName + 'X\\]', 'g'),
replace = '[' + baseName + '][' + group + ']',
$elm, showon;
// Fix showon field names in a current group
for (var i = 0, l = $elements.length; i < l; i++) {
$elm = $($elements[i]);
showon = $elm.attr('data-showon-gsl').replace(search, replace);
$elm.attr('data-showon-gsl', showon);
}
setUpShowon(row);
});
});
})(jQuery);
})(document, Joomla);