/*
* 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;

        //build the box and fade
        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"></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 a string was passed, convert to a single state
        if (message.constructor == String) {
        message = {
        state0: {
        html: message,
        buttons: options.buttons,
        focus: options.focus,
        submit: options.submit
        }
        };
        }

        //build the states
        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;"><img src="/img/img-formiga-login-invalido.jpg" style="margin-left:10px; float:left;"/><img src="/img/img-detalhe-login-invalido.gif" style="margin-top:26px; float:left;"/><div style="width:300px; height:auto; float:left; position:relative;background-color:#d8efcc; margin:12px 0 20px 0;"><img src="/img/img-logar-01.gif" style="position: absolute; left: 0;" /><img src="/img/img-logar-02.gif" style="position: absolute; right: 0;" /><div class="' + options.prefix + 'message">' + stateobj.html + '</div><img src="/img/img-logar-03.gif" style="position: absolute; left: 0; bottom: 0;" /><img src="/img/img-logar-04.gif" style="position: absolute; right: 0; bottom: 0;" /></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>';
        });
        
        //insert the states...
        $jqi.find('#' + options.prefix + 'states').html(states).children('.' + options.prefix + '_state:first').css('display', 'block');
        $jqi.find('.' + options.prefix + 'buttons:empty').css('display', 'none');
        
        //Events
        $.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 = {};

                //collect all form element values from all states
        $.each($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; // MSIE or Firefox?

            //escape key closes
        if (key == 27) {
        fadeClicked();
        }

            //constrain tabs
        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();
        //ie6, remove the scroll event
        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();
        
        
        //ie6, add a scroll event to fix position:fixed
        if (ie6) {
        $window.scroll(ie6scroll);
        }
        $jqif.click(fadeClicked);
        $window.resize(positionPrompt);
        $jqib.bind("keydown keypress", keyPressEventHandler);
        $jqi.find('.' + options.prefix + 'close').click(removePrompt);

        //Show it
        $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: 1000001,
        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);