/* ------------------------------------------------------------------------
	Class: prettyPhoto
	Use: Lightbox clone for jQuery
	Author: Stephane Caron (http://www.no-margin-for-errors.com)
	Version: 2.2.6
------------------------------------------------------------------------- */

(function($) {
	$.fn.prettyPhoto = function(settings) {
		// global Variables
		var caller = 0;
		var doresize = true;
		var imagesArray = [];
		var setPosition = 0; /* Position in the set */
		var alturaFoto = 0;

		//$(window).scroll();
		$(window).resize(function() { _centerPicture(); _resizeOverlay(); });
		$(document).keyup(function(e) {
			switch (e.keyCode) {
				case 37:
					if (setPosition == 1) return;
					changePicture('previous');
					break;
				case 39:
					if (setPosition == setCount) return;
					changePicture('next');
					break;
				case 27:
					close();
					break;
			};
		});


		settings = jQuery.extend({
			animationSpeed: 'normal', /* fast/slow/normal */
			padding: 20, /* padding for each side of the picture */
			opacity: 0.85, /* Value between 0 and 1 */
			showTitle: true, /* true/false */
			allowresize: false, /* true/false */
			counter_separator_label: '/' /* The separator for the gallery counter 1 "of" 2 */
			//theme: 'light_rounded' /* light_rounded / dark_rounded / light_square / dark_square */
		}, settings);

		$(this).each(function() {
			var hasTitle = false;
			var isSet = false;
			var setCount = 0; /* Total images in the set */
			var arrayPosition = 0; /* Total position in the array */

			imagesArray[imagesArray.length] = this;
			$(this).bind('click', function() {
				open(this);
				return false;
			});
		});

		function open(el) {
			caller = $(el);

			// Find out if the picture is part of a set
			theRel = $(caller).attr('rel');
			galleryRegExp = /\[(?:.*)\]/;
			theGallery = galleryRegExp.exec(theRel);

			// Calculate the number of items in the set, and the position of the clicked picture.
			isSet = false;
			setCount = 0;
			for (i = 0; i < imagesArray.length; i++) {
				if ($(imagesArray[i]).attr('rel').indexOf(theGallery) != -1) {
					setCount++;
					if (setCount > 1) isSet = true;

					if ($(imagesArray[i]).attr('href') == $(el).attr('href')) {
						setPosition = setCount;
						arrayPosition = i;
					};
				};
			};

			_buildOverlay(isSet);

			// Display the current position
			$('div.pp_pic_holder p.currentTextHolder').text(setPosition + settings.counter_separator_label + setCount);

			// Position the picture in the center of the viewing area
			_centerPicture();

			$('div.pp_pic_holder #full_res').hide();
			$('.pp_loaderIcon').show();

			_preload();
		};

		showimage = function(width, height, containerWidth, containerHeight, contentHeight, contentWidth, resized) {
			alturaFoto = height;
			$('.pp_loaderIcon').hide();
			var scrollPos = _getScroll();

			if ($.browser.opera) {
				windowHeight = window.innerHeight;
				windowWidth = window.innerWidth;
			} else {
				windowHeight = $(window).height();
				windowWidth = $(window).width();
			};

			$('div.pp_pic_holder .pp_content').animate({ 'height': contentHeight, 'width': containerWidth }, settings.animationSpeed);

			if (alturaFoto > (windowHeight - 140)) 
				projectedTop = scrollPos['scrollTop'] + 50;				
			
			//projectedTop = scrollPos['scrollTop'] + ((windowHeight / 2) - (containerHeight / 2));
			else
				projectedTop = scrollPos['scrollTop'] + ((windowHeight / 2) - (containerHeight / 2));
			if (projectedTop < 0) projectedTop = 0 + $('div.ppt').height();

			// Resize the holder
			$('div.pp_pic_holder').animate({
				'top': projectedTop,
				'left': ((windowWidth / 2) - (containerWidth / 2)),
				'width': containerWidth
			}, settings.animationSpeed, function() {
				$('#fullResImage').attr({
					'width': width,
					'height': height
				});

				$('div.pp_pic_holder').width(containerWidth);
				$('div.pp_pic_holder .hoverContainer').height(height).width(width);

				// Fade the new image
				$('div.pp_pic_holder #full_res').fadeIn(settings.animationSpeed);

				// Show the nav elements
				_shownav();

				// Fade the resizing link if the image is resized
				if (resized) $('a.pp_expand,a.pp_contract').fadeIn(settings.animationSpeed);
			});
		};

		function changePicture(direction) {
			if (direction == 'previous') {
				arrayPosition--;
				setPosition--;
			} else {
				arrayPosition++;
				setPosition++;
			};

			// Allow the resizing of the images
			if (!doresize) doresize = true;

			// Fade out the current picture
			$('div.pp_pic_holder .hoverContainer,div.pp_pic_holder .pp_details').fadeOut(settings.animationSpeed);
			$('div.pp_pic_holder #full_res').fadeOut(settings.animationSpeed, function() {
				$('.pp_loaderIcon').show();

				// Preload the image
				_preload();
			});

			_hideTitle();
			$('a.pp_expand,a.pp_contract').fadeOut(settings.animationSpeed, function() {
				$(this).removeClass('pp_contract').addClass('pp_expand');
			});
		};

		function close() {
			$('div.pp_pic_holder,div.ppt').fadeOut(settings.animationSpeed, function() {
				$('div.pp_overlay').fadeOut(settings.animationSpeed, function() {
					$('div.pp_overlay,div.pp_pic_holder,div.ppt').remove();

					// To fix the bug with IE select boxes
					if ($.browser.msie && $.browser.version == 6) {
						$('select').css('visibility', 'visible');
					};
				});
			});

			doresize = true;
		};

		function _checkPosition() {
			// If at the end, hide the next link
			if (setPosition == setCount) {
				$('div.pp_pic_holder a.pp_next').css('visibility', 'hidden');
				$('div.pp_pic_holder a.pp_arrow_next').addClass('disabled').unbind('click');
			} else {
				$('div.pp_pic_holder a.pp_next').css('visibility', 'visible');
				$('div.pp_pic_holder a.pp_arrow_next.disabled').removeClass('disabled').bind('click', function() {
					changePicture('next');
					return false;
				});
			};

			// If at the beginning, hide the previous link
			if (setPosition == 1) {
				$('div.pp_pic_holder a.pp_previous').css('visibility', 'hidden');
				$('div.pp_pic_holder a.pp_arrow_previous').addClass('disabled').unbind('click');
			} else {
				$('div.pp_pic_holder a.pp_previous').css('visibility', 'visible');
				$('div.pp_pic_holder a.pp_arrow_previous.disabled').removeClass('disabled').bind('click', function() {
					changePicture('previous');
					return false;
				});
			};

			// Change the current picture text - Alterado
			$('div.pp_pic_holder p.currentTextHolder').text(setPosition + settings.counter_separator_label + setCount);

			var $c = (isSet) ? $(imagesArray[arrayPosition]) : $(caller);

			if ($c.attr('title')) {
				$('div.pp_pic_holder .pp_description').show().html(unescape($c.attr('title')));
			} else {
				$('div.pp_pic_holder .pp_description').hide().text('');
			};

			//if($c.find('img').attr('alt') && settings.showTitle){
			if (settings.showTitle) {
				hasTitle = true;
				$('div.ppt').html();
				//}else{
				//	hasTitle = false;
			};
		};

		function _fitToViewport(width, height) {
			hasBeenResized = false;

			$('div.pp_pic_holder .pp_details').width(width); /* To have the correct height */
			$('div.pp_pic_holder .pp_details p.pp_description').width(width); /* So it doesn't overlap the button */

			// Get the container size, to resize the holder to the right dimensions
			contentHeight = height + parseFloat($('div.pp_pic_holder .pp_details').height()) + parseFloat($('div.pp_pic_holder .pp_details').css('margin-top')) + parseFloat($('div.pp_pic_holder .pp_details').css('margin-bottom'));
			contentWidth = width;
			containerHeight = height + parseFloat($('div.ppt').height()) + parseFloat($('div.pp_pic_holder .pp_top').height()) + parseFloat($('div.pp_pic_holder .pp_bottom').height());
			containerWidth = width + settings.padding;

			// Define them in case there's no resize needed
			imageWidth = width;
			imageHeight = height;

			windowHeight = $(window).height();
			windowWidth = $(window).width();

			if (((containerWidth > windowWidth) || (containerHeight > windowHeight)) && doresize && settings.allowresize) {
				hasBeenResized = true;
				notFitting = true;

				while (notFitting) {
					if ((containerWidth > windowWidth)) {
						imageWidth = (windowWidth - 200);
						imageHeight = (height / width) * imageWidth;
					} else if ((containerHeight > windowHeight)) {
						imageHeight = (windowHeight - 200);
						imageWidth = (width / height) * imageHeight;
					} else {
						notFitting = false;
					};

					containerHeight = imageHeight;
					containerWidth = imageWidth;
				};

				// Define the new dimensions
				contentHeight = imageHeight + parseFloat($('div.pp_pic_holder .pp_details').height()) + parseFloat($('div.pp_pic_holder .pp_details').css('margin-top')) + parseFloat($('div.pp_pic_holder .pp_details').css('margin-bottom'));
				contentWidth = imageWidth;
				containerHeight = imageHeight + parseFloat($('div.ppt').height()) + parseFloat($('div.pp_pic_holder .pp_top').height()) + parseFloat($('div.pp_pic_holder .pp_bottom').height());
				containerWidth = imageWidth + settings.padding;

				$('div.pp_pic_holder .pp_details').width(contentWidth); /* To have the correct height */
				$('div.pp_pic_holder .pp_details p.pp_description').width(contentWidth); /* So it doesn't overlap the button */

			};

			return {
				width: imageWidth,
				height: imageHeight,
				containerHeight: containerHeight,
				containerWidth: containerWidth,
				contentHeight: contentHeight,
				contentWidth: contentWidth,
				resized: hasBeenResized
			};
		};

		function _centerPicture() {
			//Make sure the gallery is open
			if ($('div.pp_pic_holder').size() > 0) {

				var scrollPos = _getScroll();

				if ($.browser.opera) {
					windowHeight = window.innerHeight;
					windowWidth = window.innerWidth;
				} else {
					windowHeight = $(window).height();
					windowWidth = $(window).width();
				};

				if (doresize) {
					if (alturaFoto > (windowHeight - 140)) 
						projectedTop = scrollPos['scrollTop'] + 50;				
					
					else
						projectedTop = (windowHeight / 2) + scrollPos['scrollTop'] - ($('div.pp_pic_holder').height() / 2);
					if (projectedTop < 0) projectedTop = 0 + $('div.ppt').height();

					$('div.pp_pic_holder').css({
						'top': projectedTop,
						'left': (windowWidth / 2) + scrollPos['scrollLeft'] - ($('div.pp_pic_holder').width() / 2)
					});

					$('div.ppt').css({
						'top': $('div.pp_pic_holder').offset().top - $('div.ppt').height(),
						'left': $('div.pp_pic_holder').offset().left + (settings.padding / 2)
					});
				};
			};
		};

		function _shownav() {
			if (isSet) $('div.pp_pic_holder .hoverContainer').fadeIn(settings.animationSpeed);
			$('div.pp_pic_holder .pp_details').fadeIn(settings.animationSpeed);

			_showTitle();
		};

		function _showTitle() {

			if (settings.showTitle && hasTitle) {
				$('div.ppt').css({
					'top': $('div.pp_pic_holder').offset().top - 55,
					'left': $('div.pp_pic_holder').offset().left + (settings.padding / 2) - 10,
					'display': 'none',
					'width': $('div.pp_pic_holder').width()
				});

				//				$('div.ppt div.ppt_content').css({
				//					'width': $('div.pp_pic_holder').width()
				//				});

				//				if ($('div.ppt').width() > $('div.pp_pic_holder').width()) {
				//					$('div.ppt div.ppt_content').css('width', $('div.pp_pic_holder').width() - (settings.padding * 2));
				//				} else {
				//					$('div.ppt div.ppt_content').css('width', '');
				//				};

				$('div.ppt').fadeIn(settings.animationSpeed);
			};
		};

		function _hideTitle() {
			$('div.ppt').fadeOut(settings.animationSpeed);
		};

		function _preload() {
			// Hide the next/previous links if on first or last images.
			_checkPosition();

			// Set the new image
			imgPreloader = new Image();

			// Preload the neighbour images
			nextImage = new Image();
			if (isSet && setPosition > setCount) nextImage.src = $(imagesArray[arrayPosition + 1]).attr('href');
			prevImage = new Image();
			if (isSet && imagesArray[arrayPosition - 1]) prevImage.src = $(imagesArray[arrayPosition - 1]).attr('href');

			$('div.pp_pic_holder .pp_content').css('overflow', 'hidden');

			if (isSet) {
				$('div.pp_pic_holder #fullResImage').attr('src', $(imagesArray[arrayPosition]).attr('href'));
			} else {
				$('div.pp_pic_holder #fullResImage').attr('src', $(caller).attr('href'));
			};

			imgPreloader.onload = function() {
				var correctSizes = _fitToViewport(imgPreloader.width, imgPreloader.height);
				imgPreloader.width = correctSizes['width'];
				imgPreloader.height = correctSizes['height'];

				// Need that small delay for the anim to be nice
				setTimeout('showimage(imgPreloader.width,imgPreloader.height,' + correctSizes["containerWidth"] + ',' + correctSizes["containerHeight"] + ',' + correctSizes["contentHeight"] + ',' + correctSizes["contentWidth"] + ',' + correctSizes["resized"] + ')', 500);
			};

			(isSet) ? imgPreloader.src = $(imagesArray[arrayPosition]).attr('href') : imgPreloader.src = $(caller).attr('href');
		};

		function _getScroll() {
			scrollTop = window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop || 0;
			scrollLeft = window.pageXOffset || document.documentElement.scrollLeft || document.body.scrollLeft || 0;
			return { scrollTop: scrollTop, scrollLeft: scrollLeft };
		};

		function _resizeOverlay() {
			$('div.pp_overlay').css({
				'height': $(document).height(),
				'width': $(window).width()
			});
		};

		function _buildOverlay() {
			// Build the background overlay div
			backgroundDiv = "<div class='pp_overlay'></div>";
			$('body').append(backgroundDiv);
			$('div.pp_overlay').css({
				'height': $(document).height(),
				'width': $(window).width()
			}).bind('click', function() {
				close();
			});

			// Basic HTML for the picture holder
			pictureHolder =
			'<div class="pp_pic_holder">' +
				'<div class="pp_top">' +
					'<div class="pp_left"></div>' +
					'<div class="pp_middle"></div>' +
					'<div class="pp_right"></div>' +
				'</div>' +
				'<div class="pp_content">' +
					'<a href="#" class="pp_expand" title="Expand the image">Expand</a>' +
					'<div class="pp_loaderIcon"></div>' +
					'<div class="hoverContainer">' +
						'<a class="pp_next" href="#">next</a>' +
						'<a class="pp_previous" href="#">previous</a>' +
					'</div>' +
					'<div id="full_res">' +
						'<img id="fullResImage" src="" />' +
					'</div>' +
					'<div class="pp_details clearfix">' +
						'<p class="pp_description"></p>' +
						'<div class="pp_nav">' +
							'<a href="#" class="pp_arrow_previous">Previous</a>' +
							'<p class="currentTextHolder">0' + settings.counter_separator_label + '0</p>' +
							'<a href="#" class="pp_arrow_next">Next</a>' +
						'</div>' +
					'</div>' +
				'</div>' +
				'<div class="pp_bottom">' +
				'</div>' +
			'</div>';

			// Basic html for the title holder
			titleHolder = '<div class="ppt">' +
								'<div class="ppt_logo">' +
									'<img src="images/prettyPhoto/blog/blog_logo.png" class="ppt_img" />' +
								'</div>' +
								'<div class="ppt_fechar">' +
									'<a class="ppt_close" href="#"></a>' +
								'</div>' +
							'</div>';

			$('body').append(pictureHolder).append(titleHolder);

			$('.pp_pic_holder,.titleHolder').css({ 'opacity': 0 });
			$('.pp_pic_holder,.ppt').addClass(settings.theme);
			$('a.ppt_close').bind('click', function() { close(); return false; });
			$('a.pp_expand').bind('click', function() {

				// Expand the image
				if ($(this).hasClass('pp_expand')) {
					$(this).removeClass('pp_expand').addClass('pp_contract');
					doresize = false;
				} else {
					$(this).removeClass('pp_contract').addClass('pp_expand');
					doresize = true;
				};

				_hideTitle();
				$('div.pp_pic_holder .hoverContainer,div.pp_pic_holder #full_res').fadeOut(settings.animationSpeed);
				$('div.pp_pic_holder .pp_details').fadeOut(settings.animationSpeed, function() {
					_preload();
				});
				return false;
			});

			$('.pp_pic_holder .pp_previous,.pp_pic_holder .pp_arrow_previous').bind('click', function() {
				changePicture('previous');
				return false;
			});

			$('.pp_pic_holder .pp_next,.pp_pic_holder .pp_arrow_next').bind('click', function() {
				changePicture('next');
				return false;
			});

			$('.hoverContainer').css({
				'margin-left': settings.padding / 2
			});

			// If it's not a set, hide the links
			if (!isSet) {
				$('.hoverContainer,.pp_nav').hide();
			};


			// To fix the bug with IE select boxes
			if ($.browser.msie && $.browser.version == 6) {
				$('body').addClass('ie6');
				$('select').css('visibility', 'hidden');
			};

			// Then fade it in
			$('div.pp_overlay').css('opacity', 0).fadeTo(settings.animationSpeed, settings.opacity, function() {
				$('div.pp_pic_holder').css('opacity', 0).fadeIn(settings.animationSpeed, function() {
					// To fix an IE bug
					$('div.pp_pic_holder').attr('style', 'left:' + $('div.pp_pic_holder').css('left') + ';top:' + $('div.pp_pic_holder').css('top') + ';');
				});
			});
		};
	};
})(jQuery);