/* Author: Lynsey Gwin

*/


$(document).ready(function() {

	$('.toggle').toggle(
	function () {
			$(this).text("Expand");
			$('.btn').removeClass('active').next('div').css({
					width: '0'
				});	
			$('section.message').removeClass('center-message').addClass('corner').animate({
					width: '100px',
					height: '45px'
				});
		  },
		  function () {
			  $(this).text("Minimize");
			$('section.message').addClass('center-message').removeClass('corner').animate({
					width: '800px',
					height: '550px'
				});		  
				}		
		)
		
	$('.btn').toggle(
	function () {
			$(this).addClass('active').next('div').show().animate({
					width: '100%'
				});
		  },
		  function () {
			$(this).removeClass('active').next('div').animate({
					width: '0'
				});	  
				}		
		) 
		
   $(".pe-container, .center-message").centerInClient();
   
	$(window).resize(function() {
	  $(".pe-container, .center-message").centerInClient();
	});
		
});

$(function() {
				
				var Photo	= (function() {
						
						// list of thumbs
					var $list		= $('#pe-thumbs'),
						// the images
						$elems		= $list.find('img'),
						// maxScale : maximum scale value the image will have
						// minOpacity / maxOpacity : minimum (set in the CSS) and maximum values for the image's opacity
						settings	= {
							maxScale	: 1.2,
							maxOpacity	: 0.9,
							minOpacity	: Number( $elems.css('opacity') )
						},
						init		= function() {
							
							// minScale will be set in the CSS
							settings.minScale = _getScaleVal() || 1;
							_initEvents();
						
						},
						// Get Value of CSS Scale through JavaScript:
						// http://css-tricks.com/get-value-of-css-rotation-through-javascript/
						_getScaleVal= function() {
						
							var st = window.getComputedStyle($elems.get(0), null),
								tr = st.getPropertyValue("-webkit-transform") ||
									 st.getPropertyValue("-moz-transform") ||
									 st.getPropertyValue("-ms-transform") ||
									 st.getPropertyValue("-o-transform") ||
									 st.getPropertyValue("transform") ||
									 "fail...";

							if( tr !== 'none' ) {	 

								var values = tr.split('(')[1].split(')')[0].split(','),
									a = values[0],
									b = values[1],
									c = values[2],
									d = values[3];

								return Math.sqrt( a * a + b * b );
							
							}
							
						},
						_initEvents	= function() {
							
							// the proximity event
							$elems.on('proximity.Photo', { max: 80, throttle: 10, fireOutOfBounds : true }, function( event, proximity, distance ) {
								
								var $el			= $(this),
									$li			= $el.closest('li'),
									scaleVal	= proximity * ( settings.maxScale - settings.minScale ) + settings.minScale,
									scaleExp	= 'scale(' + scaleVal + ')';
								
								// change the z-index of the element once it reaches the maximum scale value
								( scaleVal === settings.maxScale ) ? $li.css( 'z-index', 1000 ) : $li.css( 'z-index', 1 );
								
								$el.css({
									'-webkit-transform'	: scaleExp,
									'-moz-transform'	: scaleExp,
									'-o-transform'		: scaleExp,
									'-ms-transform'		: scaleExp,
									'transform'			: scaleExp,
									'opacity'			: ( proximity * ( settings.maxOpacity - settings.minOpacity ) + settings.minOpacity )
								});

							});
						
						}
					
					return {
						init	: init
					};
				
				})();
				
				Photo.init();
				
			});