/*
 * jNice
 * version: 1.0 (11.26.08)
 * by Sean Mooney (sean@whitespace-creative.com) 
 * Examples at: http://www.whitespace-creative.com/jquery/jnice/
 * Dual licensed under the MIT and GPL licenses:
 *   http://www.opensource.org/licenses/mit-license.php
 *   http://www.gnu.org/licenses/gpl.html
 *
 * To Use: place in the head 
 *  <link href="inc/style/jNice.css" rel="stylesheet" type="text/css" />
 *  <script type="text/javascript" src="inc/js/jquery.jNice.js"></script>
 *
 * And apply the jNice class to the form you want to style
 *
 * To Do: Add textareas, Add File upload
 *
 ******************************************** */
(function($){
    $.fn.jNice = function(options){
        var self = this;
        var safari = $.browser.safari; /* We need to check for safari to fix the input:text problem */
        /* Apply document listener */
        $(document).mousedown(checkExternalClick);
        /* each form */
        return this.each(function(){
            $('input:submit, input:reset, input:button', this).each(ButtonAdd);
            $('button').focus(function(){ $(this).addClass('jNiceFocus')}).blur(function(){ $(this).removeClass('jNiceFocus')});
            $('input:text:visible, input:password', this).each(TextAdd);
            /* If this is safari we need to add an extra class */
            if (safari){$('.jNiceInputWrapper').each(function(){$(this).addClass('jNiceSafari').find('input').css('width', $(this).width()+11);});}
            $('input:checkbox', this).each(CheckAdd);
            $('input:radio', this).each(RadioAdd);
            $('select', this).each(function(index){ SelectAdd(this, index); });
            /* Add a new handler for the reset action */
            $(this).bind('reset',function(){var action = function(){ Reset(this); }; window.setTimeout(action, 10); });
            $('.jNiceHidden').css({opacity:0});
        });     
    };/* End the Plugin */

    var Reset = function(form){
        var sel;
        $('.jNiceSelectWrapper select', form).each(function(){sel = (this.selectedIndex<0) ? 0 : this.selectedIndex; $('ul', $(this).parent()).each(function(){$('a:eq('+ sel +')', this).click();});});
        $('a.jNiceCheckbox, a.jNiceRadio', form).removeClass('jNiceChecked');
        $('input:checkbox, input:radio', form).each(function(){if(this.checked){$('a', $(this).parent()).addClass('jNiceChecked');}});
    };

    var RadioAdd = function(){
        var $input = $(this).addClass('jNiceHidden').wrap('<span class="jRadioWrapper jNiceWrapper"></span>');
        var $wrapper = $input.parent();
        var $a = $('<span class="jNiceRadio"></span>');
        $wrapper.prepend($a);
        /* Click Handler */
        $a.click(function(){
                var $input = $(this).addClass('jNiceChecked').siblings('input').attr('checked',true);
                //if ($input[0].onchange) { $input[0].onchange(); }
                $input.trigger('change');
                /* uncheck all others of same name */
                $('input:radio[name="'+ $input.attr('name') +'"]').not($input).each(function(){
                    $(this).attr('checked',false).siblings('.jNiceRadio').removeClass('jNiceChecked');
                });
                return false;
        });
        $input.click(function(){
            if(this.checked){
                var $input = $(this).siblings('.jNiceRadio').addClass('jNiceChecked').end();
                /* uncheck all others of same name */
                $('input:radio[name="'+ $input.attr('name') +'"]').not($input).each(function(){
                    $(this).attr('checked',false).siblings('.jNiceRadio').removeClass('jNiceChecked');
                });
            }
        }).focus(function(){ $a.addClass('jNiceFocus'); }).blur(function(){ $a.removeClass('jNiceFocus'); });

        /* set the default state */
        if (this.checked){ $a.addClass('jNiceChecked'); }
    };

    var CheckAdd = function(){
        var $input = $(this).addClass('jNiceHidden').wrap('<span class="jNiceWrapper"></span>');
        var $wrapper = $input.parent().append('<span class="jNiceCheckbox"></span>');
        /* Click Handler */
        var $a = $wrapper.find('.jNiceCheckbox').click(function(){
                var $a = $(this);
                var input = $a.siblings('input')[0];
                if (input.checked===true){
                    input.checked = false;
                    $a.removeClass('jNiceChecked');
                }
                else {
                    input.checked = true;
                    $a.addClass('jNiceChecked');
                }
                return false;
        });
        $input.click(function(){
            if(this.checked){ $a.addClass('jNiceChecked');  }
            else { $a.removeClass('jNiceChecked'); }
        }).focus(function(){ $a.addClass('jNiceFocus'); }).blur(function(){ $a.removeClass('jNiceFocus'); });
        
        /* set the default state */
        if (this.checked){$('.jNiceCheckbox', $wrapper).addClass('jNiceChecked');}
    };

    var TextAdd = function(){
        var $input = $(this).addClass('jNiceInput').wrap('<div class="jNiceInputWrapper"><div class="jNiceInputInner"></div></div>');
        var $wrapper = $input.parents('.jNiceInputWrapper');
        $input.focus(function(){ 
            $wrapper.addClass('jNiceInputWrapper_hover');
        }).blur(function(){
            $wrapper.removeClass('jNiceInputWrapper_hover');
        });
    };

    var ButtonAdd = function(){
        var value = $(this).attr('value');
        $(this).replaceWith('<button id="'+ this.id +'" name="'+ this.name +'" type="'+ this.type +'" class="'+ this.className +'" value="'+ value +'"><span><span>'+ value +'</span></span>');
    };

    /* Hide all open selects */
    var SelectHide = function(){
        $('.jNiceSelectWrapper .jNiceUlWrapper:visible').hide();
        $('.jNiceSelectWrapper').removeClass('opened');
    };

    /* Check for an external click */
    var checkExternalClick = function(event) {
        if ($(event.target).parents('.jNiceSelectWrapper').length === 0) { SelectHide(); }
    };

    var SelectAdd = function(element, index){
        var $select = $(element);
        index = index || $select.css('zIndex')*1;
        index = (index) ? index : 0;
        /* First thing we do is Wrap it */
        $select.wrap($('<div class="jNiceWrapper"></div>').css({zIndex: 100-index}));
        var width = $select.width();
        $select.addClass('jNiceHidden').after('<div class="jNiceSelectWrapper"><div><span class="jNiceSelectText"></span><span class="jNiceSelectOpen"></span></div><div class="jNiceUlWrapper"><ul></ul></div></div>');
        var $wrapper = $(element).siblings('.jNiceSelectWrapper').css({width: width +'px'});
        $('.jNiceSelectText', $wrapper).width( width - $('.jNiceSelectOpen', $wrapper).width());
        $('.jNiceUlWrapper').width(width);
        /* IF IE 6 */
        if ($.browser.msie && jQuery.browser.version < 7) {
            $select.after($('<iframe src="javascript:\'\';" marginwidth="0" marginheight="0" align="bottom" scrolling="no" tabIndex="-1" frameborder="0"></iframe>').css({ height: $select.height()+4 +'px' }));
        }
        /* Now we add the options */
        SelectUpdate(element);
        /* Apply the click handler to the Open */
        $('div', $wrapper).click(function(){
            var $ul = $(this).siblings('.jNiceUlWrapper');
            if ($ul.css('display')=='none'){ SelectHide(); } /* Check if box is already open to still allow toggle, but close all other selects */
            $ul.toggle();
            var offSet = ($('a.selected', $ul).offset().top - $ul.offset().top);
            $ul.attr({scrollTop: offSet});
            $wrapper.toggleClass('opened');
            return false;
        });
        /* Add the key listener */
        $select.keydown(function(e){
            var selectedIndex = this.selectedIndex;
            switch(e.keyCode){
                case 40: /* Down */
                    if (selectedIndex < this.options.length - 1){ selectedIndex+=1; }
                    break;
                case 38: /* Up */
                    if (selectedIndex > 0){ selectedIndex-=1; }
                    break;
                default:
                    return;
                    break;
            }
            $('ul a', $wrapper).removeClass('selected').eq(selectedIndex).addClass('selected');
            $('span:eq(0)', $wrapper).html($('option:eq('+ selectedIndex +')', $select).attr('selected', 'selected').text());
            return false;
        }).focus(function(){ $wrapper.addClass('jNiceFocus'); }).blur(function(){ $wrapper.removeClass('jNiceFocus'); });
    };

    var SelectUpdate = function(element){
        var $select = $(element);
        var $wrapper = $select.siblings('.jNiceSelectWrapper');
        var $ul = $wrapper.find('ul').find('li').remove().end();
        $ul.closest('.jNiceUlWrapper').hide();
        $('option', $select).each(function(i){
            $ul.append('<li><a href="#" index="'+ i +'">'+ this.text +'</a></li>');
        });
        /* Add click handler to the a */
        $ul.find('a').click(function(){
            $('a.selected', $wrapper).removeClass('selected');
            $(this).addClass('selected');   
            /* Fire the onchange event */
            if ($select[0].selectedIndex != $(this).attr('index')) { 
                $select[0].selectedIndex = $(this).attr('index');
                $($select[0]).trigger('change');
            }
            $select[0].selectedIndex = $(this).attr('index');
            $('span:eq(0)', $wrapper).html($(this).html());
            $wrapper.removeClass('opened');
            $ul.closest('.jNiceUlWrapper').hide();
            return false;
        });
        /* Set the defalut */
        $('a:eq('+ $select[0].selectedIndex +')', $ul).click();
    };

    var SelectRemove = function(element){
        var zIndex = $(element).siblings('.jNiceSelectWrapper').css('zIndex');
        $(element).css({zIndex: zIndex}).removeClass('jNiceHidden');
        $(element).siblings('.jNiceSelectWrapper').remove();
    };

    /* Utilities */
    $.jNice = {
            SelectAdd : function(element, index){   SelectAdd(element, index); },
            SelectRemove : function(element){ SelectRemove(element); },
            SelectUpdate : function(element){ SelectUpdate(element); }
    };/* End Utilities */

    /* Automatically apply to any forms with class jNice */
    $(function(){$('.jNice').jNice();   });
})(jQuery);