/*
 * jQuery Modal Dialog plugin 1.0
 * Released: July 14, 2008
 * 
 * Copyright (c) 2008 Chris Winberry
 * Email: transistech@gmail.com
 *
 * Some major modifications by Grigore Enescu Madalin
 * 
 * Original Design: Michael Leigeber
 * http://www.leigeber.com/2008/04/custom-javascript-dialog-boxes/
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 * 
 * Dual licensed under the MIT and GPL licenses:
 *   http://www.opensource.org/licenses/mit-license.php
 *   http://www.gnu.org/licenses/gpl.html
 *
 * @license http://www.opensource.org/licenses/mit-license.php
 * @license http://www.gnu.org/licenses/gpl.html
 * @project jquery.modaldialog
 */
(function($) {
	
    var modaldialog = {};

	// Creates and shows the modal dialog
    function showDialog (msg, options) 
    {
	
       	// Make sure the dialog type is valid. If not assign the default one (the first)
		if(!$.inArray(options.type, modaldialog.DialogTypes)) 
        {
			options.type = modaldialog.DialogTypes[0];
		};

		// Merge default title (per type), default settings, and user defined settings
		var settings = $.extend({ title: modaldialog.DialogTitles[options.type] }, modaldialog.defaults, options);

		// Check if the dialog elements exist and create them if not
		if (!document.getElementById('dialog')) 
        {
        
			dialog = document.createElement('div');
			dialog.id = 'dialog';
			$(dialog).html(
				"<div id='dialog-header'>" +
					"<div id='dialog-title'></div>" +
					"<div id='dialog-close'></div>" +
				"</div>" +
				"<div id='dialog-content'>" +
					"<div id='dialog-content-inner'></div>" +
					"<div id='dialog-button-container'>" +
					"</div>" +
				"</div>"
				);
			
			dialogmask = document.createElement('div');
			dialogmask.id = 'dialog-mask';
			
			$(dialogmask).hide();
			$(dialog).hide();
			
			document.body.appendChild(dialogmask);
			document.body.appendChild(dialog);

			// Set the click event for the "x" and buttons			
			$("#dialog-close").click(modaldialog.hide);
            
		}

		var dl  = $('#dialog');
		var dlh = $('#dialog-header');
		var dlc = $('#dialog-content');

		$('#dialog-title').html(settings.title);
		$('#dialog-content-inner').html(msg);

		// Center the dialog in the window but make sure it's at least 25 pixels from the top
		// Without that check, dialogs that are taller than the visible window risk
		// having the close buttons off-screen, rendering the dialog unclosable 
		dl.css('width', settings.width);
		var dialogTop = Math.abs($(window).height() - dl.height()) / 2;
		dl.css('left', ($(window).width() - dl.width()) / 2);
		dl.css('top', (dialogTop >= 25) ? dialogTop : 25);

		// Clear the dialog-type classes and add the current dialog-type class		
		$.each(modaldialog.DialogTypes, function () { dlc.removeClass("dialog-type-"+this) });
		dlc.addClass("dialog-type-"+settings.type);

        // Show or hide close
		if (settings.showClose) {
			$('#dialog-close').show();
		} else {
			$('#dialog-close').hide();
		}
        
        // Show or hide buttons
        hasButtons = false,
		$.each(settings.buttons, function() { return !(hasButtons=true); });
        var tempButtonContainer = $('#dialog-button-container');
		tempButtonContainer.empty().hide();         
		if (hasButtons) 
        {
			tempButtonContainer.show();
			$.each(settings.buttons, function(name, fn) 
            {
				$('<span><input type="button" value="'+name+'" /></span>')
                .click(fn)
                .appendTo(tempButtonContainer);
			});
		} 
        
        // Show dialog
		dl.show();
		$('#dialog-mask').show();
        
	};

	modaldialog.error = function $$modaldialog$error (msg, options) {
		if (typeof(options) == "undefined") {
			options = {};
		}
		options['type'] = "error";
		return(showDialog(msg, options));
	}
	modaldialog.warning = function $$modaldialog$error (msg, options) {
		if (typeof(options) == "undefined") {
			options = {};
		}
		options['type'] = "warning";
		return(showDialog(msg, options));
	}
	modaldialog.success = function $$modaldialog$error (msg, options) {
		if (typeof(options) == "undefined") {
			options = {};
		}
		options['type'] = "success";
		return(showDialog(msg, options));
	}
	modaldialog.prompt = function $$modaldialog$error (msg, options) {
		if (typeof(options) == "undefined") {
			options = {};
		}
		options['type'] = "prompt";
		return(showDialog(msg, options));
	}
	modaldialog.hide = function $$modaldialog$hide () {
		$('#dialog').hide(0);
		$('#dialog-mask').hide(0);
	};

	modaldialog.DialogTypes = new Array("error", "warning", "success", "prompt");
	modaldialog.DialogTitles = {
		"error": "Error",
        "warning": "Warning",
        "success": "Success",
        "prompt": "Question"
	};
	modaldialog.defaults = {
        showClose: true,
        buttons: { "OK": function() {$.modaldialog.hide();} },
        width: 300
	};

	$.extend({ modaldialog: modaldialog });
    
})(jQuery);