[3.10] Joomla.Showon.initialise API, and make sure that showon initialised only once, fork of 18843

media/jui/js/cms-uncompressed.js

@@ -167,7 +167,9 @@ Joomla = window.Joomla || {};
 		}
 
 		/**
-		 * Method for setup the 'showon' feature, for the fields in given container
+		 * 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) {
@@ -178,9 +180,16 @@ Joomla = window.Joomla || {};
 			// 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') || [],
-						field, $fields                           = $();
+				(function($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++) {
@@ -195,35 +204,52 @@ Joomla = window.Joomla || {};
 					$fields.on('change keyup', function() {
 						linkedoptions($target, true);
 					});
-				})();
+
+				})($($showonFields[is]));
+			}
+		}
+
+		// Provide a public API
+		if (!Joomla.Showon) {
+			Joomla.Showon = {
+				initialise: setUpShowon
 			}
 		}
 
 		/**
 		 * Initialize 'showon' feature
 		 */
 		$(document).ready(function() {
-			setUpShowon();
-
-			// Setup showon feature in the subform field
-			$(document).on('subform-row-add', function(event, row) {
-				var $row      = $(row),
-					$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(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);
+					}
 				}
 
-				setUpShowon(row);
+				Joomla.Showon.initialise(target);
 			});
 		});