/**
 * jQuery ODIS IDOS plugin
 */

// Offering a Custom Alias suport - More info: http://docs.jquery.com/Plugins/Authoring#Custom_Alias
(function($) {
	/**
	 * $ is an alias to jQuery object
	 *
	 */
	$.fn.idos = 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 navigation
			fixedNavigation:		false,		// (boolean) Boolean that informs if the navigation (next and prev button) will be fixed or not in the interface.
			// Configuration related to images
			imageLoading:			'/js/jquery/idos/images/lightbox-ico-loading.gif',		// (string) Path and the name of the loading icon
			imageBtnClose:			'/js/jquery/idos/images/lightbox-btn-close.gif',		// (string) Path and the name of the close btn
			imageBlank:			'/js/jquery/idos/images/lightbox-blank.gif',			// (string) Path and the name of a blank image (one pixel)
			// Configuration related to container idos box
			containerBorderSize:	10,			// (integer) If you adjust the padding in the CSS for the container, #lightbox-container-idos-box, you will need to update this value
			containerResizeSpeed:	400,		// (integer) Specify the resize duration of container idos. These number are miliseconds. 400 is default.

			// Don�t alter these variables in any way
			url:				"http://odis.idos.cz/odis/spojeni/",
			idosWidth:			1050,
			idosHeight:			500,
		},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').css({ 'visibility' : 'hidden' });
			// Call the function to create the markup structure; style some elements; assign events in some elements.
			_set_interface();
			
			// Call the function that prepares idos exibition
			_set_idos_to_view();
		}
		/**
		 * Create the jQuery lightBox plugin interface
		 *
		 * The HTML markup will be like that:
			<div id="jquery-overlay"></div>
			<div id="jquery-lightbox">
				<div id="lightbox-container-idos-box">
					<div id="lightbox-container-idos">
						<img src="../fotos/XX.jpg" id="lightbox-idos">
						<div id="lightbox-loading">
							<a href="#" id="lightbox-loading-link">
								<img src="../images/lightbox-ico-loading.gif">
							</a>
						</div>
					</div>
				</div>
				<div id="lightbox-container-idos-data-box">
					<div id="lightbox-container-idos-data">
						<div id="lightbox-secNav">
							<a href="#" id="lightbox-secNav-btnClose">
								<img src="../images/lightbox-btn-close.gif">
							</a>
						</div>
					</div>
				</div>
			</div>
		 *
		 */
		function _set_interface() {
			// Apply the HTML markup into body tag
			$('body').append('<div id="jquery-overlay"></div><div id="jquery-lightbox"><div id="lightbox-container-idos-box"><div id="lightbox-container-idos"><iframe id="lightbox-idos"></iframe><div id="lightbox-loading"><a href="#" id="lightbox-loading-link"><img src="' + settings.imageLoading + '"></a></div></div></div><div id="lightbox-container-idos-data-box"><div id="lightbox-container-idos-data"><div id="lightbox-secNav"><a href="#" id="lightbox-secNav-btnClose"><img src="' + settings.imageBtnClose + '"></a></div></div></div></div>');	
			// Get page sizes
			var arrPageSizes = ___getPageSize();
			// Style overlay and show it
			$('#jquery-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
			$('#jquery-lightbox').css({
				top:	arrPageScroll[1] + (arrPageSizes[3] / 20),
				left:	arrPageScroll[0]
			}).show();
			// Assigning click events in elements to close overlay
			$('#jquery-overlay,#jquery-lightbox').click(function() {
				_finish();									
			});
			// Assign the _finish function to lightbox-loading-link and lightbox-secNav-btnClose objects
			$('#lightbox-loading-link,#lightbox-secNav-btnClose').click(function() {
				_finish();
				return false;
			});
			// If window was resized, calculate the new overlay dimensions
			$(window).resize(function() {
				// Get page sizes
				var arrPageSizes = ___getPageSize();
				// Style overlay and show it
				$('#jquery-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
				$('#jquery-lightbox').css({
					top:	arrPageScroll[1] + (arrPageSizes[3] / 20),
					left:	arrPageScroll[0],					
				});
// 				$('#lightbox-container-idos-box').height(arrPageSizes[3] - (arrPageSizes[3] / 10) - 5);
// 				$('#lightbox-idos').height(arrPageSizes[3] - (arrPageSizes[3] / 10) - 5);

			});

			settings.idosHeight = arrPageSizes[3] - (arrPageSizes[3] / 10) - 30;			
		}
		/**
		 * Prepares idos exibition
		 *
		 */
		function _set_idos_to_view() { // show the loading
			// Show the loading
			$('#lightbox-loading').show();
			if ( settings.fixedNavigation ) {
				$('#lightbox-idos,#lightbox-container-idos-data-box,#lightbox-idos-details-currentNumber').hide();
			} else {
				// Hide some elements
				$('#lightbox-idos,#lightbox-nav,#lightbox-nav-btnPrev,#lightbox-nav-btnNext,#lightbox-container-idos-data-box,#lightbox-idos-details-currentNumber').hide();
			}

			$('#lightbox-idos').attr('src',settings.url);
			$('#lightbox-idos').width(settings.idosWidth);
			$('#lightbox-idos').height(settings.idosHeight);
			_resize_container_idos_box(settings.idosWidth,settings.idosHeight);

		};
		/**
		 * Perfomance an effect in the idos container resizing it
		 *
		 * @param integer intidosWidth The idos�s width that will be showed
		 * @param integer intidosHeight The idos�s height that will be showed
		 */
		function _resize_container_idos_box(intIdosWidth,intIdosHeight) {
			// Get current width and height
			var intCurrentWidth = $('#lightbox-container-idos-box').width();
			var intCurrentHeight = $('#lightbox-container-idos-box').height();
			// Get the width and height of the selected idos plus the padding
			var intWidth = (intIdosWidth + (settings.containerBorderSize * 2)); // Plus the idos�s width and the left and right padding value
			var intHeight = (intIdosHeight + (settings.containerBorderSize * 2)); // Plus the idos�s height and the left and right padding value
			// Diferences
			var intDiffW = intCurrentWidth - intWidth;
			var intDiffH = intCurrentHeight - intHeight;
			// Perfomance the effect
			$('#lightbox-container-idos-box').animate({ width: intWidth, height: intHeight },settings.containerResizeSpeed,function() { _show_idos(); });
			if ( ( intDiffW == 0 ) && ( intDiffH == 0 ) ) {
				if ( $.browser.msie ) {
					___pause(250);
				} else {
					___pause(100);	
				}
			} 
			$('#lightbox-container-idos-data-box').css({ width: intIdosWidth });
		};
		/**
		 * Show the prepared idos
		 *
		 */
		function _show_idos() {
			$('#lightbox-loading').hide();
			$('#lightbox-idos').fadeIn(function(){
				_show_idos_data();
			});
		};
		/**
		 * Show the idos information
		 *
		 */
		function _show_idos_data() {
			$('#lightbox-container-idos-data-box').slideDown('fast');				
		}
		/**
		 * Remove jQuery lightBox plugin HTML markup
		 *
		 */
		function _finish() {
			$('#jquery-lightbox').remove();
			$('#jquery-overlay').fadeOut(function() { $('#jquery-overlay').remove(); });
			// Show some elements to avoid conflict with overlay in IE. These elements appear above the overlay.
			$('embed, object, select').css({ 'visibility' : 'visible' });
		}
		/**
		 / 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);
		 };
		// Return the jQuery object for chaining. The unbind method is used to avoid click conflict when the plugin is called more than once
		return this.unbind('click').click(_initialize);
	};
})(jQuery); // Call and execute the function immediately passing the jQuery object