/**
 * jQuery dialog plugin
 * @author Ladislav Vacek - http://www.synergyweb.cz
 * @version 0.1
 * @date 13.1.2008
 * @category jQuery plugin
 * @copyright (c) 2008 Ladislav Vacek
 */


(function($) {
	
	$.fn.dialog = function(settings) {
		// Settings to configure the jQuery lightBox plugin how you like
		settings = jQuery.extend({
			// Configuration related to overlay
			overlayBgColor: 		'#000',		// (string) Background color to overlay; inform a hexadecimal value like: #RRGGBB. Where RR, GG, and BB are the hexadecimal values for the red, green, and blue values of the color.
			overlayOpacity:			0.8,		// (integer) Opacity value to overlay; inform: 0.X. Where X are number from 0 to 9
			// Configuration related to images
			imageLoading:			'/templates/img/loading.gif',		// (string) Path and the name of the loading icon
			imageBtnClose:			'/templates/img/closelabel.gif',		// (string) Path and the name of the close btn
			width: 300,
			height: 200,
			position: 'center',
			page: ''
		},settings);
		
		
		// Caching the jQuery object with all elements matched
		var jQueryMatchedObj = this; // This, in this context, refer to jQuery object
		/**
		 * Initializing the plugin calling the start function
		 *
		 * @return boolean false
		 */
		function _initialize() {
			_start(this,jQueryMatchedObj); // This, in this context, refer to object (link) which the user have clicked
			return false; // Avoid the browser following the link
		}
		/**
		 * Start the jQuery lightBox plugin
		 *
		 * @param object objClicked The object (link) whick the user have clicked
		 * @param object jQueryMatchedObj The jQuery object with all elements matched
		 */
		function _start(objClicked,jQueryMatchedObj) {
			// Hime some elements to avoid conflict with overlay in IE. These elements appear above the overlay.
			$('embed, object, select').hide();
			// Call the function to create the markup structure; style some elements; assign events in some elements.
			_set_interface();
			
			// set page from href
			settings.page = objClicked.getAttribute('href');
			
			_set_to_view();
			
		
		}
		/**
		 * Create the jQuery lightBox plugin interface
		 *
		 * The HTML markup will be like that:
			<div id="dialog-overlay"></div>
			<div id="dialog">
				<div id="dialog-cover">
					<div id="dialog-topNav">
						<a href="#" id="dialog-btnClose"><img src="/templates/img/closelabel.gif"></a>
					</div>
					<div style="display: none;" id="dialog-loading">
						<img src="/templates/img/loading.gif">
					</div>
					<div id="dialog-content"></div>
				</div>
			</div>
		 *
		 */
		function _set_interface() {
			// Apply the HTML markup into body tag
			$('body').append('<div id="dialog-overlay"></div><div id="dialog"><div id="dialog-cover"><div id="dialog-topNav"><a href="#" id="dialog-btnClose"><img src="' + settings.imageBtnClose + '"></a></div><div style="display: none;" id="dialog-loading"><img src="' + settings.imageLoading + '"></div><div id="dialog-content"></div></div></div>');	
			// Get page sizes
			var arrPageSizes = ___getPageSize();
			// Style overlay and show it
			$('#dialog-overlay').css({
				backgroundColor:	settings.overlayBgColor,
				opacity:			settings.overlayOpacity,
				width:				arrPageSizes[0],
				height:				arrPageSizes[1]
			}).fadeIn();
			// Get page scroll
			var arrPageScroll = ___getPageScroll();
			// Calculate top and left offset for the jquery-lightbox div object and show it
			$('#dialog').css({
				top:	arrPageScroll[1] + (arrPageSizes[3] / 10),
				left:	arrPageScroll[0]
			}).show();
			// Assigning click events in elements to close overlay
			$('#dialog-overlay').click(function() {
				_finish();									
			});
			// Assign the _finish function to lightbox-loading-link and lightbox-secNav-btnClose objects
			$('#dialog-btnClose').click(function() {
				_finish();
			});
			// If window was resized, calculate the new overlay dimensions
			$(window).resize(function() {
				// Get page sizes
				var arrPageSizes = ___getPageSize();
				// Style overlay and show it
				$('#dialog-overlay').css({
					width:		arrPageSizes[0],
					height:		arrPageSizes[1]
				});
				// Get page scroll
				var arrPageScroll = ___getPageScroll();
				// Calculate top and left offset for the jquery-lightbox div object and show it
				$('#dialog').css({
					top:	arrPageScroll[1] + (arrPageSizes[3] / 10),
					left:	arrPageScroll[0]
				});
			});
		}
		/**
		 * Prepares image exibition; doing a imageīs preloader to calculate itīs size
		 *
		 */
		function _set_to_view() { // show the loading
			// Show the loading
			$('#dialog-loading').show();
			// Hide some elements
			$('#dialog-content,#dialog-topNav').hide();
			load_page();

		
		};

				
		/**
		 * Remove jQuery lightBox plugin HTML markup
		 *
		 */
		function _finish() {
			$('#dialog').remove();
			$('#dialog-overlay').fadeOut(function() { $('#dialog-overlay').remove(); });
			// Show some elements to avoid conflict with overlay in IE. These elements appear above the overlay.
			$('embed, object, select').show();
		}
		/**
		 / THIRD FUNCTION
		 * getPageSize() by quirksmode.com
		 *
		 * @return Array Return an array with page width, height and window width, height
		 */
		function ___getPageSize() {
			var xScroll, yScroll;
			if (window.innerHeight && window.scrollMaxY) {	
				xScroll = window.innerWidth + window.scrollMaxX;
				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
				if(document.documentElement.clientWidth){
					windowWidth = document.documentElement.clientWidth; 
				} else {
					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 = xScroll;		
			} else {
				pageWidth = windowWidth;
			}
			arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight) 
			return arrayPageSize;
		};
		/**
		 / THIRD FUNCTION
		 * getPageScroll() by quirksmode.com
		 *
		 * @return Array Return an array with x,y page scroll values.
		 */
		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;
		};
		 /**
		  * Stop the code execution from a escified time in milisecond
		  *
		  */
		 function ___pause(ms) {
			var date = new Date(); 
			curDate = null;
			do { var curDate = new Date(); }
			while ( curDate - date < ms);
		 };
		 
		// nacte stranku
		function load_page() {
			$.ajax({
			  url: settings.page+'?dialog=1',
			  cache: false,
			  success: function(html){
					$('#dialog-content').append(html);	
					show_page();	
			  }
			});
		}
		
		function show_page()
		{
			$('#dialog-loading').hide();
			$('#dialog-content,#dialog-topNav').show();
		}
		

				
		// Return the jQuery object for chaining
		return this.click(_initialize);
	};
	
	
		
})(jQuery); // Call and execute the function immediately passing the jQuery object