(function($){
    $.fn.extend({
        props : {
            colors: 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            width: '28',
            size: '5',
            defaultcolor: undefined // colore predefinito
        },
        colorPicker : function (_props)
        {
            if (_props) this.props = $.extend(this.props, _props);
            $(this).data('color', this.props.defaultcolor);
            var THIS = this;
            $(this).addClass('picker-handler');
            var palette = $('<div class="picker"></div>').hide();
            var total = this.props.colors.length;
            var current = $(this);
            for(i=0; i<total; i++) {
                if ((i % this.props.width) == 0) if (i > 0) palette.append('<div style="clear: both;"></div>');
                var box = $("<div style='background-color:" + this.props.colors[i] + ";' class='pickercolor'></div>");
                box.click(function () {
                    var c = $(this).css('backgroundColor');
                    var color = (c.indexOf('rgb') != -1) ? rgbToHex(c) : c;
                    THIS.data('color',color);
                    $(THIS).trigger('select',color);
                });
                box.mouseover(function () {
                    var c = $(this).css('backgroundColor');
                    var color = (c.indexOf('rgb') != -1) ? rgbToHex(c) : c;
                    $(THIS).trigger('taste',color);
                });
                $(palette).append(box);
            }
            $(this).append(palette);
            var position = $(this).offset();
            palette.css({
                top: '-136px', //position.top - $(this).find(".picker").outerHeight(true) - 7,
                left: (position.left - 8)
            });

            // ACTIONS ///////////////////////
            $(this).click(function(){
                if($(THIS).find('.picker').css('display') == 'none') $(THIS)._showPalette();
                else $(THIS)._hidePalette();
            });
            $(palette).mouseleave(function(){
                $(THIS)._hidePalette();
                if(THIS.data('color')) $(THIS).trigger('taste',THIS.data('color'));
            });

            // FUNCTIONS /////////////////////
            function rgbToHex(value) {
                var matches = value.match(/\d+/g);
                for (var i = 0; i < matches.length; i++) {
                    matches[i] = parseInt(matches[i]).toString(16);
                    if (matches[i].length < 2) matches[i] = '0' + matches[i];
                }
                return "#" + matches[0] + matches[1] + matches[2];
            }
            return this;
        },
        _showPalette : function(){
            $('.picker').hide();
            $(this).find('.picker').show();
        },
        _hidePalette : function(){
            $(this).find('.picker').hide();
        }

    });
})(jQuery);