behavior-reorder-fields.js
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			/**
			* @provides javelin-behavior-editengine-reorder-fields
			* @requires javelin-behavior
			* javelin-stratcom
			* javelin-workflow
			* javelin-dom
			* phabricator-draggable-list
			*/

			JX.behavior('editengine-reorder-fields', function(config) {

			var root = JX.$(config.listID);

			var list = new JX.DraggableList('editengine-form-field', root)
			.setFindItemsHandler(function() {
			return JX.DOM.scry(root, 'li', 'editengine-form-field');
			});

			list.listen('didDrop', function() {
			var nodes = list.findItems();

			var data;
			var keys = [];
			for (var ii = 0; ii < nodes.length; ii++) {
			data = JX.Stratcom.getData(nodes[ii]);
			keys.push(data.fieldKey);
			}

			JX.$(config.inputID).value = keys.join(',');
			});

			});

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