/**
 * jQuery Simple Dialog Plugin
 *   http://code.google.com/p/jquery-simpledialog/
 *
 * Copyright (c) 2009 Yusuke Horie
 *
 * Released under the MIT License:
 * http://www.opensource.org/licenses/mit-license.php
 *
 * Since  : 0.01 - 07/06/2009
 * Version: 0.11 - 08/08/2009
 */
(function(jQuery){
    var _doc=null,_win=null,_docHeight=0,_winHeight=0,_winWidth=0,_t=null,_event=null,_target=null,_escapedContent='',_title='',_caption='',_container=null,_content=null;
    jQuery.fn.simpleDialog=function(options){
        var opts=jQuery.extend({},$.fn.simpleDialog.defaults,options);
        return this.each(function(i,e){
            var $this=jQuery(e);
            var triggerEvent=($this.is('form'))?'submit':'click';
            $this.bind(triggerEvent+'.simpledialog',function(event){
                event.preventDefault();
                _t=this;
                _t.opts=opts;
                _event=event;
                _initialize();
                _prepare();
                var $t=jQuery(this);
                if(_t.opts.title!='')_title=_t.opts.title;
                if($t.is('a')){
                    if(_t.opts.useTitleAttr){
                        var title=$t.attr('title');
                        if(typeof title!='undefined'&&title!='')_title=title
                            }
                            var href=$t.attr('href');
                    if(href.match(/^#/)){
                        var c=jQuery('#'+$t.attr('rel'));
                        if(c.length==0)return false;
                        _target=c;
                        _escapedContent=_target.clone().html();
                        _target.empty();
                        _show(_escapedContent)
                        }else if($t.find('img').length>0){
                        if(_t.opts.showCaption)_caption=$t.find('img').attr('title');
                        _load(href)
                        }else{
                        _request(href,{})
                        }
                    }else if($t.is(':submit',':button')){
                var f=$t.parents('form');
                _request(f.attr('action'),f.serialize(),f.attr('method'))
                }else if($t.is('form')){
                _request($t.attr('action'),$t.serialize(),$t.attr('method'))
                }else{
                jQuery.simpleDialog.close(event)
                }
                return false
            })
        })
    };
    
jQuery.fn.simpleDialog.defaults={
    title:'',
    useTitleAttr:true,
    containerId:'sd_container',
    containerClass:'sd_container',
    overlayId:'sd_overlay',
    overlayClass:'sd_overlay',
    loadingClass:'sd_loading',
    closeLabelClass:'sd_closelabel',
    showCloseLabel:true,
    closeLabel:'×',
    opacity:0.6,
    duration:400,
    easing:'linear',
    zIndex:1000,
    width:null,
    height:null,
    showCaption:true,
    open:null,
    close:null,
    closeSelector:'.close'
};

jQuery.simpleDialog={
    close:function(event){
        if($.isFunction(_t.opts.close))_t.opts.close.apply(this,[(typeof event=='undefined')?null:event,_t]);
        if(_container!=null)_container.remove();
        if(_target!=null)_target.html(_escapedContent);
        jQuery('#'+_t.opts.overlayId).remove();
        return false
        }
    };

var _initialize=function(){
    _doc=jQuery(document);
    _win=jQuery(window);
    _docHeight=_doc.height();
    _winHeight=_win.height();
    _winWidth=_win.width();
    _title='';
    _caption=''
    };
    
var _show=function(content){
    var body='';
    if(_title!='')body+='<div class="sd_header">'+_title+'</div>';
    body+='<div class="sd_content">'+content+'</div>';
    if(_caption!=''&&typeof _caption!='undefined')body+=' <div class="sd_footer">'+_caption+'</div>';
    var tmp=jQuery('<div />').addClass(_t.opts.containerClass).hide().css({
        position:'absolute',
        height:'auto'
    }).html(body).appendTo(document.body);
    var w=(_t.opts.width)?parseInt(_t.opts.width):tmp.width();
    var h=(_t.opts.height)?parseInt(_t.opts.height):tmp.height();
    tmp.remove();
    var pos=_center(w,h);
    _container.removeClass(_t.opts.loadingClass).animate({
        width:w+'px',
        height:h+'px',
        left:pos[0]+'px',
        top:pos[1]+'px'
        },_t.opts.duration,_t.opts.easing,function(){
        _container.html(body).find(_t.opts.closeSelector).bind('click.simpledialog',jQuery.simpleDialog.close);
        if(_t.opts.showCloseLabel){
            var sc='<div id="sd_closelabel" class="'+_t.opts.closeLabelClass+'">'+'<h1><a href="#">'+_t.opts.closeLabel+'</a></h1></div>';
            _container.hover(function(){
                $(this).append(sc);
                var scObj=$('#sd_closelabel');
                scObj.css({
                    position:'absolute',
                    top:0,
                    left:(w-scObj.width())+'px',
                    opacity:0.85
                }).find('a').click(jQuery.simpleDialog.close)
                },function(){
                $('#sd_closelabel').remove()
                })
            }
            if(jQuery.isFunction(_t.opts.open))_t.opts.open.apply(_container,[_event,_t])
            })
    };
    
var _request=function(url,data,method){
    jQuery.ajax({
        type:(typeof method=='undefined')?'GET':method,
        url:url,
        data:data,
        dataType:'html',
        success:_show
    })
    };
    
var _load=function(url){
    $(document.body).append('<div id="sd_tmp_image" style="display:none;"><img src="'+url+'" alt="" /></div>');
    var tmp=$('#sd_tmp_image');
    tmp.find('img').load(function(){
        var h=tmp.html();
        tmp.remove();
        _show(h)
        }).error(function(e){
        $.simpleDialog.close(e);
        tmp.remove()
        })
    };
    
var _prepare=function(){
    jQuery('<div />').attr('id',_t.opts.overlayId).addClass(_t.opts.overlayClass).css({
        position:'absolute',
        width:_winWidth,
        height:_docHeight,
        opacity:_t.opts.opacity,
        zIndex:_t.opts.zIndex
        }).bind('click.simpledialog',jQuery.simpleDialog.close).appendTo(document.body);
    _container=jQuery('<div />').attr('id',_t.opts.containerId).addClass(_t.opts.loadingClass).addClass(_t.opts.containerClass).hide().appendTo(document.body);
    var w=_container.width();
    var h=_container.height();
    var pos=_center(w,h);
    _container.css({
        position:'absolute',
        left:pos[0]+'px',
        top:pos[1]+'px',
        width:w+'px',
        height:h+'px',
        zIndex:_t.opts.zIndex+1000
        }).show()
    };
    
var _center=function(w,h){
    return[(_docHeight>_winHeight)?_winWidth/2-w/2-18:_winWidth/2-w/2,_doc.scrollTop()+_winHeight/2-h/2]
    }
})(jQuery);