/*
 * jQuery Impromptu
 * By: Trent Richardson [http://trentrichardson.com]
 * Version 2.8
 * Last Modified: 12/18/2009
 * 
 * Copyright 2009 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){
        //alx important for youtube flash movies
        $('embed, object, select').css({ 'visibility' : 'hidden' });
        options=$.extend({},$.prompt.defaults,options);
        $.prompt.currentPrefix=options.prefix;
        var ie6=($.browser.msie&&$.browser.version<7);
        var $body=$(document.body);
        var $window=$(window);
        var msgbox='<div class="'+options.prefix+'box" 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){
        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()];
        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');
        }
    });
    //alx important for youtube flash movies
    $('embed, object, 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',
    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){
    $('.'+$.prompt.currentPrefix+'_state').slideUp('slow');
    $('#'+$.prompt.currentPrefix+'_state_'+state).slideDown('slow',function(){
        $(this).find('.'+$.prompt.currentPrefix+'defaultbutton').focus();
    });
};

$.prompt.nextState=function(){
    var $next=$('.'+$.prompt.currentPrefix+'_state:visible').next();
    $('.'+$.prompt.currentPrefix+'_state').slideUp('slow');
    $next.slideDown('slow',function(){
        $next.find('.'+$.prompt.currentPrefix+'defaultbutton').focus();
    });
};

$.prompt.prevState=function(){
    var $next=$('.'+$.prompt.currentPrefix+'_state:visible').prev();
    $('.'+$.prompt.currentPrefix+'_state').slideUp('slow');
    $next.slideDown('slow',function(){
        $next.find('.'+$.prompt.currentPrefix+'defaultbutton').focus();
    });
};

$.prompt.close=function(){
    //alx important for youtube flash movies
    $('embed, object, select').css({ 'visibility' : 'visible' });
    $('#'+$.prompt.currentPrefix+'box').fadeOut('fast',function(){
        $(this).remove();
    });
};

})(jQuery);