/*
 * bdAlertCustom - Sobre-escreve a função Alert() do javaScript
 *
 * Copyright (c) 2008 Tihh Gonçalves <tiago@tiago.art.br>, http://www.bludata.com.br
 * Licensed under the MIT License:
 * http://www.opensource.org/licenses/mit-license.php
 * 
 * $Version: 1.0.0 BETA
 *
 * Dependências:
 *  - jQuery 1.2.6
 *  - jquery.jqModal
 *  - jquery.tooltip
 */
  
var alertAberto = false;
var _fnc = '';

function alert(msg, fnc)
{
	_verificaAlert(msg, fnc);
}

function _verificaAlert(msg, fnc)
{
	if(alertAberto == false)
		_alertOpen(msg, fnc);
	else
		setTimeout("_verificaAlert(msg, fnc)",1000);

}

function _alertOpen(msg, fnc)
{
	alertAberto = true;
	
	//Adiciona tecla de atalho pra fechar alert (ESC)
	shortcut.add("Esc",function(){
		$('#AlertOk').click();
	});

	//Trata as quebras de linha
	msg = msg.replaceAll("\n", '<br>');
	
	//msg = msg + '[' + fnc + ']';
	
	/**
	*Imprime Alert
	*/
	$('<div id="AlertCustom"></div>').appendTo("body");
	$('<div id="AlertCustomForm"><img src="http://www.adotesc.com.br/bd.images/alert_icon.gif"></div>').appendTo("body");
	$('<div id="AlertCustomFormMsg">' + msg + '</div>').appendTo("#AlertCustomForm");
	
	_fnc = fnc;
	
	$('<div style="width: 440x;" class="divBotoesForms"><input type="button" id="AlertOk" value="Fechar" id="btnFechar" name="button" onclick="_alertClose();"/></div>').appendTo("#AlertCustomForm"); 
		
	//Diz que AlertCustom é modal
  $('#AlertCustomForm').jqm({
    overlay: 60,
    overlayClass: 'overlay',
    modal: true,
    trigger: false
  });    

  //Seta/cria tooltip do botão
	$(document).ready(function()
	{ 
		$("#AlertOk").tooltip({ 
		    bodyHandler: function() { 
		        return 'Tecle ESC para sair'; 
		    }, 
		    showURL: false 
		});  
	});
	
	/**
	* Mostra Alert
	*/
	
	//Faz aparecer alert
	$("#AlertCustom").fadeTo("normal", 0.8,function(){
		
		var tamanho			= _getPageSize();
		var width 			= tamanho[0];
		var height 			=	tamanho[1];
		var WindowWidth = tamanho[2];
		var WindowHeight = tamanho[3];
		
		var scroll  = _getPageScroll();
		
		var left 		= scroll[0] + (WindowWidth / 2) - ($("#AlertCustomForm").width() / 2);
		var top			=	scroll[1] + (WindowHeight / 2) - ($("#AlertCustomForm").height() / 2);
		
		$("#AlertCustom").width(width);
		$("#AlertCustom").height(height);
		$("#AlertCustomForm").css('left', left);
		$("#AlertCustomForm").css('top', top);
		$('#AlertCustom').fadeIn("fast",function(){
			$('#AlertCustomForm').jqmShow();
			$('#AlertOk').focus();		
			//esconde os 'selects' (só no ie)
			if($.browser.msie)
				$('select').hide();		
			
			//Move tooltip para final do body(depois do AlertModal)
			$("body").append( $("#tooltip") );
		});
	});	
}

function _alertClose(fnc)
{
	var fnc = _fnc;
	
	/*
	* Esconde Alert
	*/
	$('#AlertCustomForm').jqmHide();

		$('#AlertCustom').fadeOut("fast",function(){

		/*
		* Exclui html da pagina
		*/
		$('#AlertCustomForm').remove();
		$('#AlertCustom').remove();
		
		//mostra os 'selects' (só se for ie)
		if($.browser.msie)
			$('select').show();
		
		alertAberto = false;
		
		if(!(typeof fnc == 'undefined'))
		{
			fnc();
		}
		
		//Remote tecla de atalho pra fechar alert()
		shortcut.remove("Esc");
		
		
		/////////////
	});
}


/***
*	Função que retorna tamanho da página no momento (ideal para fundo de tela)
*/
function _getPageSize() 
{
	var xScroll, yScroll;
	
	if (window.innerHeight && window.scrollMaxY) {	
		xScroll = document.body.scrollWidth;
		yScroll = window.innerHeight + window.scrollMaxY;
	} else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
		xScroll = document.body.scrollWidth;
		yScroll = document.body.scrollHeight;
	} else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
		xScroll = document.body.offsetWidth;
		yScroll = document.body.offsetHeight;
	}
	
	var windowWidth, windowHeight;
	if (self.innerHeight) {	// all except Explorer
		windowWidth = self.innerWidth;
		windowHeight = self.innerHeight;
	} else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
		windowWidth = document.documentElement.clientWidth;
		windowHeight = document.documentElement.clientHeight;
	} else if (document.body) { // other Explorers
		windowWidth = document.body.clientWidth;
		windowHeight = document.body.clientHeight;
	}	
	
	// for small pages with total height less then height of the viewport
	if(yScroll < windowHeight){
		pageHeight = windowHeight;
	} else { 
		pageHeight = yScroll;
	}

	// for small pages with total width less then width of the viewport
	if(xScroll < windowWidth){	
		pageWidth = windowWidth;
	} else {
		pageWidth = xScroll;
	}


	arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight) 
	return arrayPageSize;
}


/**
* Função que retorna posição da página que está sendo exibido na tela (calcula o scrool)
*/
function _getPageScroll() {
		var xScroll, yScroll;
		if (self.pageYOffset) {
			yScroll = self.pageYOffset;
			xScroll = self.pageXOffset;
		} else if (document.documentElement && document.documentElement.scrollTop) {	 // Explorer 6 Strict
			yScroll = document.documentElement.scrollTop;
			xScroll = document.documentElement.scrollLeft;
		} else if (document.body) {// all other Explorers
			yScroll = document.body.scrollTop;
			xScroll = document.body.scrollLeft;	
		}
		arrayPageScroll = new Array(xScroll,yScroll);
		return arrayPageScroll;
};