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Filename : gkrating.js
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jQuery(document).ready(function(){
	"use strict";

	var form = jQuery('#jform_attribs_rates');
	var rateList = jQuery('.ratingWrapper');
	var errors = jQuery('#ratingmanager_errors');

	rateList.sortable({
		handle: '.icon-menu',
		stop : function(evt, ui){
			rates2JSON();
		}
	});
    rateList.disableSelection();

	jQuery('#ratingform_add').click(function(e){
		e.preventDefault();
		e.stopPropagation();
		errors.html('');
		if(jQuery('#ratingmanager_feature').val() === ''){
			errors.append('<div class="alert">'+errors.data('empty-text')+'</div>');
			return;
		}
		if(jQuery('#ratingmanager_value').val() > 10){ jQuery('#ratingmanager_value').val('10'); }
		if(jQuery('#ratingmanager_value').val() < 0){ jQuery('#ratingmanager_value').val('0'); }
		// check if item already exists
		var duplicate = findDuplicate(jQuery('#ratingmanager_feature').val());
		if(!duplicate){
			rateList.append('<li><span class="icon-menu"></span> <span class="rate-label">'+jQuery('#ratingmanager_feature').val().trim()+'</span> -  <span class="rate-value">'+jQuery('#ratingmanager_value').val()+'</span><a href="#" class="rate-remove">'+rateList.data('remove-text')+'</a></li>');
			rates2JSON();
			jQuery('#ratingmanager_feature').val('');
			jQuery('#ratingmanager_feature').focus();
		} else {
			errors.append('<div class="alert">'+errors.data('exists-text')+'</div>');
		}
	});

	jQuery('#ratingmanager_feature').keypress(function(e){
		 if(e.which == 13) { jQuery('#ratingmanager_value').focus(); }
	});

	jQuery('#ratingmanager_value').keypress(function(e){
		 if(e.which == 13) { jQuery('#ratingform_add').trigger('click'); }
	});

	jQuery('.rate-remove').click(function(e){
		e.preventDefault();
		e.stopPropagation();
		errors.html('');
		jQuery(this).closest('li').fadeOut('slow', function() {
			jQuery(this).remove();
			rates2JSON();
		});
	});

	function rates2JSON(){
		if(jQuery('.ratingWrapper li').length) {
			var items = jQuery('.ratingWrapper > li').map(function(){
				var item = {};
				item['label'] = jQuery(this).find('.rate-label').text();
				item['val'] = jQuery(this).find('.rate-value').text();
				return item;
			}).get();
			form.val(JSON.stringify(items));
		}
		return true;
	}

	function findDuplicate(prop){
		var duplicate = false;
		jQuery('.rate-label').each(function(i, el){
			if(jQuery(el).text().toLowerCase() === prop.toLowerCase().trim()){
				duplicate = true;
				return;
			}
		});
		return duplicate;
	}
});