/*
 * jQuery Impromptu
 * By: Trent Richardson [http://trentrichardson.com]
 * Version 3.1
 * Last Modified: 3/30/2010
 * 
 * Copyright 2010 Trent Richardson
 * Dual licensed under the MIT and GPL licenses.
 * http://trentrichardson.com/Impromptu/GPL-LICENSE.txt
 * http://trentrichardson.com/Impromptu/MIT-LICENSE.txt
 * 
 */
(
function ($) {
    $.prompt = function (message, options) {
        options = $.extend({}, $.prompt.defaults, options);
        $.prompt.currentPrefix = options.prefix;
        var ie6 = ($.browser.msie && $.browser.version < 7);
        var $body = $(document.body);
        var $window = $(window);
        options.classes = $.trim(options.classes);
        if (options.classes != '') options.classes = ' ' + options.classes;
        var msgbox = '<div class="' + options.prefix + 'box' + options.classes + '" id="' + options.prefix + 'box">';
        if (options.useiframe && (($('object, applet').length > 0) || ie6)) {
            msgbox += '<iframe src="javascript:false;" style="display:block;position:absolute;z-index:-1;" class="' + options.prefix + 'fade" id="' + options.prefix + 'fade"></iframe>';
        }
        else {
            if (ie6) {
                $('select').css('visibility', 'hidden');
            } msgbox += '<div class="' + options.prefix + 'fade" id="' + options.prefix + 'fade"></div>';
        }
        msgbox += '<div class="' + options.prefix + '" id="' + options.prefix + '"><div class="' + options.prefix + 'container"><div class="'; msgbox += options.prefix + 'close">X</div><div id="' + options.prefix + 'states"></div>';
        msgbox += '</div></div></div>';
        var $jqib = $(msgbox).appendTo($body);
        var $jqi = $jqib.children('#' + options.prefix);
        var $jqif = $jqib.children('#' + options.prefix + 'fade');
        if (message.constructor == String) {
            message = { state0: { html: message, buttons: options.buttons, focus: options.focus, submit: options.submit} };
        }
        var states = "";
        $.each(message, function (statename, stateobj) {
            stateobj = $.extend({}, $.prompt.defaults.state, stateobj); message[statename] = stateobj;
            states += '<div id="' + options.prefix + '_state_' + statename + '" class="' + options.prefix + '_state" style="display:none;"><div class="' + options.prefix + 'message">' + stateobj.html + '</div><div class="' + options.prefix + 'buttons">';
            $.each(stateobj.buttons, function (k, v) {
                if (typeof v == 'object') states += '<button name="' + options.prefix + '_' + statename + '_button' + v.title.replace(/[^a-z0-9]+/gi, '') + '" id="' + options.prefix + '_' + statename + '_button' + v.title.replace(/[^a-z0-9]+/gi, '') + '" value="' + v.value + '">' + v.title + '</button>';
                else
                    states += '<button name="' + options.prefix + '_' + statename + '_button' + k + '" id="' + options.prefix + '_' + statename + '_button' + k + '" value="' + v + '">' + k + '</button>';
            });
            states += '</div></div>';
        });
        $jqi.find('#' + options.prefix + 'states').html(states).children('.' + options.prefix + '_state:first').css('display', 'block');
        $jqi.find('.' + options.prefix + 'buttons:empty').css('display', 'none');
        $.each(message, function (statename, stateobj) {
            var $state = $jqi.find('#' + options.prefix + '_state_' + statename);
            $state.children('.' + options.prefix + 'buttons').children('button').click(function () {
                var msg = $state.children('.' + options.prefix + 'message');
                var clicked = stateobj.buttons[$(this).text()];
                if (clicked == undefined) {
                    for (var i in stateobj.buttons)
                        if (stateobj.buttons[i].title == $(this).text()) clicked = stateobj.buttons[i].value;
                }
                if (typeof clicked == 'object') clicked = clicked.value;
                var forminputs = {};
                $.each($jqi.find('#' + options.prefix + 'states :input').serializeArray(), 
                function (i, obj) {
                    if (forminputs[obj.name] === undefined) {
                        forminputs[obj.name] = obj.value; 
                    }
                    else if (typeof forminputs[obj.name] == Array || typeof forminputs[obj.name] == 'object') {
                        forminputs[obj.name].push(obj.value); 
                    }
                    else {
                        forminputs[obj.name] = [forminputs[obj.name], obj.value]; 
                    }
                });
                var close = stateobj.submit(clicked, msg, forminputs);
                if (close === undefined || close) {
                    removePrompt(true, clicked, msg, forminputs);
                 }
            });
             $state.find('.' + options.prefix + 'buttons button:eq(' + stateobj.focus + ')').addClass(options.prefix + 'defaultbutton');
         });
         var ie6scroll = function () {
             $jqib.css({ top: $window.scrollTop() }); 
         };
         var fadeClicked = function () {
             if (options.persistent) {
                 var i = 0; $jqib.addClass(options.prefix + 'warning');
                 var intervalid = setInterval(function () {
                     $jqib.toggleClass(options.prefix + 'warning');
                     if (i++ > 1) {
                         clearInterval(intervalid);
                         $jqib.removeClass(options.prefix + 'warning');
                     } 
                 }, 100);
             } else { removePrompt(); } 
         };
         var keyPressEventHandler = function (e) {
             var key = (window.event) ? event.keyCode : e.keyCode;
             if (key == 27) {
                 fadeClicked(); 
             } 
             if (key == 9) {
                 var $inputels = $(':input:enabled:visible', $jqib);
                 var fwd = !e.shiftKey && e.target == $inputels[$inputels.length - 1];
                 var back = e.shiftKey && e.target == $inputels[0];
                 if (fwd || back) {
                     setTimeout(function () {
                         if (!$inputels) return;
                         var el = $inputels[back === true ? $inputels.length - 1 : 0];
                         if (el) el.focus();
                     }, 10); return false;
                 } 
             } 
         };
         var positionPrompt = function () {
             $jqib.css({
                 position: (ie6) ? "absolute" : "fixed", height: $window.height(), width: "100%", top: (ie6) ? $window.scrollTop() : 0, left: 0, right: 0, bottom: 0
             });
             $jqif.css({ position: "absolute", height: $window.height(), width: "100%", top: 0, left: 0, right: 0, bottom: 0 });
             $jqi.css({ position: "absolute", top: options.top, left: "50%", marginLeft: (($jqi.outerWidth() / 2) * -1) });
             
            
         };
         var stylePrompt = function () {
             $jqif.css({ zIndex: options.zIndex, display: "none", opacity: options.opacity });
             $jqi.css({ zIndex: options.zIndex + 1, display: "none" });
             $jqib.css({ zIndex: options.zIndex });
         };
         var removePrompt = function (callCallback, clicked, msg, formvals) {
             $jqi.remove();
             if (ie6) {
                 $body.unbind('scroll', ie6scroll);
             }
             $window.unbind('resize', positionPrompt);
             $jqif.fadeOut(options.overlayspeed, function () {
                 $jqif.unbind('click', fadeClicked);
                 $jqif.remove();
                 if (callCallback) { options.callback(clicked, msg, formvals); }
                 $jqib.unbind('keypress', keyPressEventHandler); 
                 $jqib.remove();
                 if (ie6 && !options.useiframe) {
                     $('select').css('visibility', 'visible');
                 } 
             });
         };
         positionPrompt();
         stylePrompt();
         if (ie6) {
             $window.scroll(ie6scroll);
         }
         $jqif.click(fadeClicked);
         $window.resize(positionPrompt);
         $jqib.bind("keydown keypress", keyPressEventHandler);
         $jqi.find('.' + options.prefix + 'close').click(removePrompt);
         $jqif.fadeIn(options.overlayspeed);
         $jqi[options.show](options.promptspeed, options.loaded);
         $jqi.find('#' + options.prefix + 'states .' + options.prefix + '_state:first .' + options.prefix + 'defaultbutton').focus();
         if (options.timeout > 0) setTimeout($.prompt.close, options.timeout);
         return $jqib;
     };
     $.prompt.defaults = { prefix: 'jqi', classes: '', buttons: { Ok: true }, loaded: function () { }, submit: function () { return true; }, callback: function () { }, opacity: 0.6, zIndex: 999, overlayspeed: 'slow', promptspeed: 'fast', show: 'fadeIn', focus: 0, useiframe: false, top: "15%", persistent: true, timeout: 0, state: { html: '', buttons: { Ok: true }, focus: 0, submit: function () { 
     return true; } } };
     $.prompt.currentPrefix = $.prompt.defaults.prefix;
     $.prompt.setDefaults = function (o) {
         $.prompt.defaults = $.extend({}, $.prompt.defaults, o);
     };
     $.prompt.setStateDefaults = function (o) {
         $.prompt.defaults.state = $.extend({}, $.prompt.defaults.state, o);
     };
     $.prompt.getStateContent = function (state) {
         return $('#' + $.prompt.currentPrefix + '_state_' + state);
     };
     $.prompt.getCurrentState = function () {
         return $('.' + $.prompt.currentPrefix + '_state:visible');
     };
     $.prompt.getCurrentStateName = function () {
         var stateid = $.prompt.getCurrentState().attr('id');
         return stateid.replace($.prompt.currentPrefix + '_state_', '');
     };
     $.prompt.goToState = function (state, callback) {
         $('.' + $.prompt.currentPrefix + '_state').slideUp('slow');
         $('#' + $.prompt.currentPrefix + '_state_' + state).slideDown('slow', function () {
             $(this).find('.' + $.prompt.currentPrefix + 'defaultbutton').focus();
             if (typeof callback == 'function') callback();
         });
     };
     $.prompt.nextState = function (callback) {
         var $next = $('.' + $.prompt.currentPrefix + '_state:visible').next();
         $('.' + $.prompt.currentPrefix + '_state').slideUp('slow');
         $next.slideDown('slow', function () {
             $next.find('.' + $.prompt.currentPrefix + 'defaultbutton').focus();
             if (typeof callback == 'function') callback();
         });
     };
     $.prompt.prevState = function (callback) {
         var $next = $('.' + $.prompt.currentPrefix + '_state:visible').prev();
         $('.' + $.prompt.currentPrefix + '_state').slideUp('slow');
         $next.slideDown('slow', function () {
             $next.find('.' + $.prompt.currentPrefix + 'defaultbutton').focus();
             if (typeof callback == 'function') callback();
         });
     };
     $.prompt.close = function () {
         $('#' + $.prompt.currentPrefix + 'box').fadeOut('fast', function () { $(this).remove(); });
     };
     $.fn.prompt = function (options) {
         if (options == undefined) options = {};
         if (options.withDataAndEvents == undefined) options.withDataAndEvents = false;
                         $.prompt($(this).clone(options.withDataAndEvents).html(),options);}})(jQuery);