var $event = $.event, $special, resizeTimeout; $special = $event.special.debouncedresize = { setup: function() { $( this ).on( "resize", $special.handler ); }, teardown: function() { $( this ).off( "resize", $special.handler ); }, handler: function( event, execAsap ) { var context = this, args = arguments, dispatch = function() { event.type = "debouncedresize"; $event.dispatch.apply( context, args ); }; if ( resizeTimeout ) { clearTimeout( resizeTimeout ); } execAsap ? dispatch() : resizeTimeout = setTimeout( dispatch, $special.threshold ); }, threshold: 250 }; var BLANK = 'data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///ywAAAAAAQABAAACAUwAOw=='; $.fn.imagesLoaded = function( callback ) { var $this = this, deferred = $.isFunction($.Deferred) ? $.Deferred() : 0, hasNotify = $.isFunction(deferred.notify), $images = $this.find('img').add( $this.filter('img') ), loaded = [], proper = [], broken = []; if ($.isPlainObject(callback)) { $.each(callback, function (key, value) { if (key === 'callback') { callback = value; } else if (deferred) { deferred[key](value); } }); } function doneLoading() { var $proper = $(proper), $broken = $(broken); if ( deferred ) { if ( broken.length ) { deferred.reject( $images, $proper, $broken ); } else { deferred.resolve( $images ); } } if ( $.isFunction( callback ) ) { callback.call( $this, $images, $proper, $broken ); } } function imgLoaded( img, isBroken ) { if ( img.src === BLANK || $.inArray( img, loaded ) !== -1 ) { return; } loaded.push( img ); if ( isBroken ) { broken.push( img ); } else { proper.push( img ); } $.data( img, 'imagesLoaded', { isBroken: isBroken, src: img.src } ); if ( hasNotify ) { deferred.notifyWith( $(img), [ isBroken, $images, $(proper), $(broken) ] ); } if ( $images.length === loaded.length ){ setTimeout( doneLoading ); $images.unbind( '.imagesLoaded' ); } } if ( !$images.length ) { doneLoading(); } else { $images.bind( 'load.imagesLoaded error.imagesLoaded', function( event ){ imgLoaded( event.target, event.type === 'error' ); }).each( function( i, el ) { var src = el.src; var cached = $.data( el, 'imagesLoaded' ); if ( cached && cached.src === src ) { imgLoaded( el, cached.isBroken ); return; } if ( el.complete && el.naturalWidth !== undefined ) { imgLoaded( el, el.naturalWidth === 0 || el.naturalHeight === 0 ); return; } if ( el.readyState || el.complete ) { el.src = BLANK; el.src = src; } }); } return deferred ? deferred.promise( $this ) : $this; }; var Grid = (function() { var $grid = $( '*#og-grid' ), $items = $grid.children( 'li' ), current = -1, previewPos = -1, scrollExtra = 0, marginExpanded = 10, $window = $( window ), winsize, $body = $( 'html, body' ), transEndEventNames = { 'WebkitTransition' : 'webkitTransitionEnd', 'MozTransition' : 'transitionend', 'OTransition' : 'oTransitionEnd', 'msTransition' : 'MSTransitionEnd', 'transition' : 'transitionend' }, transEndEventName = transEndEventNames[ Modernizr.prefixed( 'transition' ) ], support = Modernizr.csstransitions, settings = { minHeight : 500, speed : 350, easing : 'ease' }; function init( config ) { settings = $.extend( true, {}, settings, config ); $grid.imagesLoaded( function() { saveItemInfo( true ); getWinSize(); initEvents(); } ); } function addItems( $newitems ) { $items = $items.add( $newitems ); $newitems.each( function() { var $item = $( this ); $item.data( { offsetTop : $item.offset().top, height : $item.height() } ); } ); initItemsEvents( $newitems ); } function saveItemInfo( saveheight ) { $items.each( function() { var $item = $( this ); $item.data( 'offsetTop', $item.offset().top ); if( saveheight ) { $item.data( 'height', $item.height() ); } } ); } function initEvents() { initItemsEvents( $items ); $window.on( 'debouncedresize', function() { scrollExtra = 0; previewPos = -1; saveItemInfo(); getWinSize(); var preview = $.data( this, 'preview' ); if( typeof preview != 'undefined' ) { hidePreview(); } } ); } function initItemsEvents( $items ) { $items.on( 'click', 'span.og-close', function() { hidePreview(); return false; } ).children( 'a' ).on( 'click', function(e) { var $item = $( this ).parent(); current === Array.from($items).findIndex(d => d == $item[0]) ? hidePreview() : showPreview( $item ); return false; } ); } function getWinSize() { winsize = { width : $window.width(), height : $window.height() }; } function showPreview( $item ) { var preview = $.data( this, 'preview' ), position = $item.data( 'offsetTop' ); scrollExtra = 0; if( typeof preview != 'undefined' ) { if( previewPos !== position ) { if( position > previewPos ) { scrollExtra = preview.height; } hidePreview(); } else { preview.update( $item ); return false; } } previewPos = position; preview = $.data( this, 'preview', new Preview( $item ) ); preview.open(); } function hidePreview() { current = -1; var preview = $.data( this, 'preview' ); preview.close(); $.removeData( this, 'preview' ); } function Preview( $item ) { this.$item = $item; this.expandedIdx = Array.from($items).findIndex(d => d == this.$item[0]); this.create(); this.update(); } Preview.prototype = { create : function() { this.$title = $( '

' ); this.$description = $( '

' ); this.$href = $( 'Full size picture' ); this.$details = $( '
' ).append( this.$title, this.$description, this.$href ); this.$loading = $( '
' ); this.$fullimage = $( '
' ).append( this.$loading ); this.$closePreview = $( '' ); this.$previewInner = $( '
' ).append( this.$closePreview, this.$fullimage, this.$details ); this.$previewEl = $( '
' ).append( this.$previewInner ); this.$item.append( this.getEl() ); if( support ) { this.setTransition(); } }, update : function( $item ) { if( $item ) { this.$item = $item; } if( current !== -1 ) { var $currentItem = $items.eq( current ); $currentItem.removeClass( 'og-expanded' ); this.$item.addClass( 'og-expanded' ); this.positionPreview(); } current = this.$item.index(); var $itemEl = this.$item.children( 'a' ), eldata = { href : $itemEl.attr( 'href' ), largesrc : $itemEl.data( 'largesrc' ), title : $itemEl.data( 'title' ), description : $itemEl.data( 'description' ), buttontext : $itemEl.data( 'buttontext' ) }; this.$title.html( eldata.title ); this.$description.html( eldata.description ); if(eldata.buttontext) this.$href.text(eldata.buttontext); else this.$href.text("Full size picture") if (eldata.href) { this.$href.attr( 'href', eldata.href ); this.$href.show(); } else { this.$href.hide(); } var self = this; if( typeof self.$largeImg != 'undefined' ) { self.$largeImg.remove(); } if( self.$fullimage.is( ':visible' ) ) { this.$loading.show(); $( '' ).load( function() { var $img = $( this ); if( $img.attr( 'src' ) === self.$item.children('a').data( 'largesrc' ) ) { self.$loading.hide(); self.$fullimage.find( 'img' ).remove(); self.$largeImg = $img.fadeIn( 350 ); self.$fullimage.append( self.$largeImg ); } } ).attr( 'src', eldata.largesrc ); } }, open : function() { setTimeout( $.proxy( function() { this.setHeights(); this.positionPreview(); }, this ), 25 ); }, close : function() { var self = this, onEndFn = function() { if( support ) { $( this ).off( transEndEventName ); } self.$item.removeClass( 'og-expanded' ); self.$previewEl.remove(); }; setTimeout( $.proxy( function() { if( typeof this.$largeImg !== 'undefined' ) { this.$largeImg.fadeOut( 'fast' ); } this.$previewEl.css( 'height', 0 ); var $expandedItem = $items.eq( this.expandedIdx ); $expandedItem.css( 'height', $expandedItem.data( 'height' ) ).on( transEndEventName, onEndFn ); if( !support ) { onEndFn.call(); } }, this ), 25 ); return false; }, calcHeight : function() { var heightPreview = winsize.height - this.$item.data( 'height' ) - marginExpanded, itemHeight = winsize.height; if( heightPreview < settings.minHeight ) { heightPreview = settings.minHeight; itemHeight = settings.minHeight + this.$item.data( 'height' ) + marginExpanded; } this.height = heightPreview; this.itemHeight = itemHeight; }, setHeights : function() { var self = this, onEndFn = function() { if( support ) { self.$item.off( transEndEventName ); } self.$item.addClass( 'og-expanded' ); }; this.calcHeight(); this.$previewEl.css( 'height', this.height ); this.$item.css( 'height', this.itemHeight ).on( transEndEventName, onEndFn ); if( !support ) { onEndFn.call(); } }, positionPreview : function() { var position = this.$item.data( 'offsetTop' ), previewOffsetT = this.$previewEl.offset().top - scrollExtra, scrollVal = this.height + this.$item.data( 'height' ) + marginExpanded <= winsize.height ? position : this.height < winsize.height ? previewOffsetT - ( winsize.height - this.height ) : previewOffsetT; $body.animate( { scrollTop : scrollVal }, settings.speed ); }, setTransition : function() { this.$previewEl.css( 'transition', 'height ' + settings.speed + 'ms ' + settings.easing ); this.$item.css( 'transition', 'height ' + settings.speed + 'ms ' + settings.easing ); }, getEl : function() { return this.$previewEl; } } return { init : init, addItems : addItems }; })(); $(function() { Grid.init(); });