/*-------------------------------------------------------------------- 
* jQuery plugin: customInput()
* by Maggie Wachs and Scott Jehl, http://www.filamentgroup.com
* Copyright (c) 2009 Filament Group
* Dual licensed under the MIT (filamentgroup.com/examples/mit-license.txt) and GPL (filamentgroup.com/examples/gpl-license.txt) licenses.
* Article: http://www.filamentgroup.com/lab/accessible_custom_designed_checkbox_radio_button_inputs_styled_css_jquery/  
* Usage example below (see comment "Run the script...").
--------------------------------------------------------------------*/


jQuery.fn.customInput = function () {
    $(this).each(function (i) {
        if ($(this).is('[type=checkbox],[type=radio]')) {
            var input = $(this);

            // get the associated label using the input's id
            var label = $('label[for=' + input.attr('id') + ']').not('.error');

            //get type, for classname suffix 
            var inputType = (input.is('[type=checkbox]')) ? 'checkbox' : 'radio';

            // wrap the input + label in a div 
            $('<div class="custom-' + inputType + '"></div>').insertBefore(input).append(input, label);

            // find all inputs in this set using the shared name attribute
            var allInputs = $('input[name=' + input.attr('name') + ']');

            // necessary for browsers that don't support the :hover pseudo class on labels
            label.hover(
                function () {
                    $(this).addClass('hover');
                    if (inputType == 'checkbox' && input.is(':checked')) {
                        $(this).addClass('checkedHover');
                    }
                },
                function () { $(this).removeClass('hover checkedHover'); }
            );

            //bind custom event, trigger it, bind click,focus,blur events                   
            input.bind('updateState', function () {
                if (input.is(':checked')) {
                    if (input.is(':radio')) {
                        allInputs.each(function () {
                            $('label[for=' + $(this).attr('id') + ']').removeClass('checked');
                        });
                    };
                    label.addClass('checked');
                }
                else { label.removeClass('checked checkedHover checkedFocus'); }

            })
            .trigger('updateState')
            .click(function () {
                $(this).trigger('updateState');
            })
            .focus(function () {
                label.addClass('focus');
                if (inputType == 'checkbox' && input.is(':checked')) {
                    $(this).addClass('checkedFocus');
                }
            })
            .blur(function () { label.removeClass('focus checkedFocus'); });
        }
    });
};