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/**
* @copyright (C) 2016 Open Source Matters, Inc. <https://www.joomla.org>
* @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, Joomla) {
"use strict";
/**
* Sets the HTML of the container-collapse element
*/
Joomla.setcollapse = function(url, name, height) {
if (!document.getElementById('collapse-' + name)) {
document.getElementById('container-collapse').innerHTML = '<div class="collapse fade" id="collapse-' + name + '"><iframe class="iframe" src="' + url + '" height="' + height + '" width="100%"></iframe></div>';
}
};
/**
* IE8 polyfill for indexOf()
*/
if (!Array.prototype.indexOf) {
Array.prototype.indexOf = function(elt) {
var len = this.length >>> 0;
var from = Number(arguments[1]) || 0;
from = (from < 0) ? Math.ceil(from) : Math.floor(from);
if (from < 0) {
from += len;
}
for (; from < len; from++) {
if (from in this && this[from] === elt) {
return from;
}
}
return -1;
};
}
/**
* 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') || [],
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 = $(this);
// If checkbox or radio box the value is read from properties
if (['checkbox', 'radio'].indexOf($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 === '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;
condition['valid'] = 0;
}
// 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;
condition['valid'] = 1;
}
}
}
// 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 (target.is('option')) {
target.toggle(showfield);
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");
}
}
animate = animate
&& !target.hasClass('no-animation')
&& !target.hasClass('no-animate')
&& !target.find('.no-animation, .no-animate').length;
if (animate) {
(showfield) ? target.slideDown() : target.slideUp();
return;
}
target.toggle(showfield);
}
/**
* Method for setup the 'showon' feature, for the fields in given container. Add it to Joomla object
* so it can be called when adding a container to the DOM.
*
* @param {HTMLElement} container
*/
function setUpShowon(container) {
container = container || document;
var $showonFields = $(container).find('[data-showon]');
// Setup each 'showon' field
for (var is = 0, ls = $showonFields.length; is < ls; is++) {
// Use anonymous function to capture arguments
(function($target) {
// Set up only once
if ($target[0].hasAttribute('data-showon-initialised')) {
return;
}
$target[0].setAttribute('data-showon-initialised', '');
var jsondata = $target.data('showon') || [],
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 and keyup
$fields.on('change keyup', function() {
linkedoptions($target, true);
});
})($($showonFields[is]));
}
}
// Provide a public API
if (!Joomla.Showon) {
Joomla.Showon = {
initialise: setUpShowon
}
}
/**
* Initialize 'showon' feature
*/
$(document).ready(function() {
Joomla.Showon.initialise(document);
// Setup showon feature in the modified container
$(document).on('subform-row-add joomla:updated', function(event, row) {
// Check for target
var target = row;
if (event.type === 'joomla:updated') {
target = event.target;
}
if ($(target).hasClass('subform-repeatable-group')) {
var $row = $(target),
$elements = $row.find('[data-showon]'),
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').replace(search, replace);
$elm.attr('data-showon', showon);
}
}
Joomla.Showon.initialise(target);
});
});
})(jQuery);
})(document, Joomla);