(function($){

//----------------------------------------------------------------
// CWaitIcon
//----------------------------------------------------------------
function CWaitIcon( url_img )
{
	var s = '';
	s += "<img ";
	s += "src='" + url_img + "'";
	s += ">";
	this.img = $( s );

	this.img.css({
		"position":"absolute",
		"left":"-10000px",
		"top":"-10000px"
	});

	this.img.hide();
	this.img.appendTo( $( 'body' ) );
}

CWaitIcon.prototype =
{
	show : function( e )
	{
		var w = 32;
		var h = 32;
		this.img.css( { "left":(e.pageX - w/2) + "px",
			"top":(e.pageY - h/2) + "px" } );
		this.img.show();
	},

	hide : function()
	{
		this.img.hide();
	}
}

//----------------------------------------------------------------
// CApp
//----------------------------------------------------------------
var app_object_selector = '.ajax-poll';
function CApp( jobj )
{
	this.children = [];

	this.jobj = jobj;
	this.tclass = this.getAttr( 'tclass', jobj );
	this.tid = this.getAttr( 'tid', jobj );
	this.url_app_entry = 'http://e-path.com.au/xface/ajax-poll.php';
	this.url_app_root = 'http://e-path.com.au/xface/';
	this.url_app_img = 'http://e-path.com.au/xface/app.img/';
	this.appid = this.makeRandomString( 64 );
	this.app_init_cmd = 'init'; 
	this.wait_icon = new CWaitIcon( this.url_app_img + 'wait.gif' );
	if ( this.app_init_cmd != '' )
	{
		this.send( { "cmd" : this.app_init_cmd } );
	}
}

CApp.prototype =
{
	showWaitIcon: function( e )
	{
		this.wait_icon.show( e );
	},

	showTipBox: function( obj, cfg, tbox )
	{
		period = ( "period" in cfg ) ? cfg["period"] : 2500;

		var tip_box;
		if ( typeof tbox === 'object' )
		{
			tip_box = tbox.clone();
		}
		else
		{
			txt = ( "txt" in cfg ) ? cfg["txt"] : "Saved！";
			bgcolor = ( "background-color" in cfg ) ? cfg["background-color"] : "#60a060";

			var s = '';
			s += "<span ";
			s += "style='";
			s += "text-align:center;";
			s += "padding:10px;";
			s += "margin:10px;";
			s += "font-size:15px;";
			s += "font-weight:bold;";
			s += "font-style:italic;";
			s += "font-family:times;";
			s += "color:#ffffff;";
			s += "background-color:" + bgcolor + ";";
			s += "border:3px solid #cfcfcf;";

			s += "-moz-border-radius: 15px;";
			s += "-webkit-border-radius: 15px;";
			s += "border-radius: 15px;";

			s += "-moz-box-shadow: 1px 1px 3px #000;";
			s += "-webkit-box-shadow: 1px 1px 3px #000;";
			s += "'>";
			s += txt;
			s += "</span>";
			tip_box = $( s );
		}

		tip_box.css({
			"position":"absolute",
			"left":"-10000px",
			"top":"-10000px"
		});

		tip_box.appendTo( $( 'body' ) );
		tip_box.show();

		wt = tip_box.outerWidth(false);
		ht = tip_box.outerHeight(true);

		var x = obj.offset().left;
		var y = obj.offset().top;
		var w = obj.width();
		var h = obj.height();

		var ytd = 10;
		var xt = x + w/2 - wt/2;
		var yt = y - ht;

		tip_box.css( { "left":xt + "px", "top":yt + "px" } );
		tip_box.fadeOut( period, function() {
			tip_box.remove();
		});
	},

	//-----------------------------------------------
	// makeRandomString( n )
	//-----------------------------------------------
	makeRandomString : function ( n )
	{
		var s = "";
		var src = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
		for( var i=0; i < n; i++ )
		{
			s += src.charAt( Math.floor( Math.random() * src.length ) );
		}
		return s;
	},

	//-----------------------------------------------
	// errBox
	//-----------------------------------------------
	errBox : function( data )
	{
		var errbox_sig = "<!--(ERRBOX)-->";
		if ( data.substring( 0, errbox_sig.length ) == errbox_sig )
		{// prevent double errbox
			return data;
		}
		else
		{
			var msg = '';
			msg += "<div style='padding:0px;border:1px solid red;";
			msg += "background-color:#fff0f0;'>";
			msg += "<div style='color:white;font-size:80%;font-weight:bold;";
			msg += "background-color:#ff0000;'>ERROR</div>";
			msg += "<div style='padding:10px;'>";
			msg += data;
			msg += "</div>";
			msg += "</div>";
			return msg;
		}
	},

	//-----------------------------------------------
	// getAttr
	//-----------------------------------------------
	getAttr : function( id_name, jobj )
	{
		if (
			( typeof( jobj.attr( id_name ) ) == 'undefined' ) || 
			( jobj.attr( id_name ) == '' ) // for Opera
		) return '';
		return jobj.attr( id_name );
	},

	//-----------------------------------------------
	// send
	//-----------------------------------------------
	send : function( json )
	{
		json['appid'] = this.appid;
		json['tclass'] = this.tclass;
		json['tid'] = this.tid;

		var _this = this;
		$.post( this.url_app_entry,
			json,
			function(data) {
				_this.process(data);
		});
	},

	//-----------------------------------------------
	// addChild
	//-----------------------------------------------
	addChild : function( child )
	{
		this.children[child.name] = child;
		return child;
	},

	//-----------------------------------------------
	// getChild
	//-----------------------------------------------
	getChild : function( name )
	{
		return this.children[name];
	},

	//-----------------------------------------------
	// sendMsg
	//-----------------------------------------------
	sendMsg : function( msg )
	{
		if ( typeof( msg.receiver ) !== 'undefined' )
		{
			if( Object.prototype.toString.call( msg.receiver ) === '[object Array]' )
			{
				for ( var i = 0; i < msg.receiver.length; i++ )
				{
					var ret = this.children[ msg.receiver[i] ].msgProc( msg );
					if ( ret != 0 ) return ret;
				}
			}
			else
			{
				return this.children[msg.receiver].msgProc( msg );
			}
		}
		else
		{
			for( name in this.children )
			{
				var ret = this.children[name].msgProc( msg );
				if ( ret != 0 ) return ret;
			}
		}
	},

	//-----------------------------------------------
	// process
	//-----------------------------------------------
	process : function( data )
	{
		this.wait_icon.hide();

		var b_evaled = false;
		try
		{
			this.res = eval('(' + data + ')');
			b_evaled = true;
		}
		catch(e)
		{
			var msg = "[ERROR]:" + "\r\n\r\n" + data.substring(0,1000);
			//alert( msg );
			this.jobj.html( this.errBox(data) );
		}

		try
		{
			if ( b_evaled )
			{
				if ( this.res.result == 'OK' )
				{
					window[this.appid] = this;
					switch( this.res.cmd )
					{
					case "alert":
						alert(this.res.html);
						break;
					case "load":
						this.jobj.append( this.res.html );
						break;
					}

					if ( typeof( this.res.msg ) !== 'undefined' )
					{
						this.sendMsg( this.res.msg );
					}
				}
				else
				{//-- code error
					alert( "^" + this.res.result );
					this.jobj.html( this.res.result );
				}
			}
		}
		catch(e)
		{
			var msg = "{ERROR}:" + e.message;
			alert( msg );
		}
	}
}

//----------------------------------------------------------------
// ready
//----------------------------------------------------------------
$(document).ready(function() {
	$( app_object_selector ).each( function(){
		var app = new CApp( $(this) ); 
	});
});

}(jQuery));