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Diffstat (limited to 'assets/js/main.js')
| -rw-r--r-- | assets/js/main.js | 494 |
1 files changed, 494 insertions, 0 deletions
diff --git a/assets/js/main.js b/assets/js/main.js new file mode 100644 index 0000000..68b577c --- /dev/null +++ b/assets/js/main.js @@ -0,0 +1,494 @@ +// main popup function +$(function() { + Grid.init(); +}); + +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 updateList() { + $items = $grid.children( 'li' ); + saveItemInfo(true); + } + + 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 = $( '<h3></h3>' ); + this.$description = $( '<p></p>' ); + this.$href = $( '<a href="#" target="_blank"></a>' ); + this.$exifInfo = $( '<ul class="exif"></ul>' ); + this.$collectionName = $( '<div class="stamp"></div>' ); + this.$details = $( '<div class="og-details"></div>' ).append( this.$collectionName, this.$title, this.$description, this.$exifInfo, this.$href); + this.$loading = $( '<div class="og-loading"></div>' ); + this.$fullimage = $( '<div class="og-fullimg"></div>' ).append( this.$loading ); + this.$closePreview = $( '<span class="og-close"></span>' ); + this.$previewInner = $( '<div class="og-expander-inner"></div>' ).append( this.$fullimage, this.$details, this.$closePreview ); + this.$previewEl = $( '<div class="og-expander"></div>' ).append( this.$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' ), + exif : $itemEl.data( 'exif' ), + buttontext : $itemEl.data( 'buttontext' ), + collectionName : $itemEl.data( 'collection' ), + isVideo: $itemEl.data( 'is-video' ) + }; + + this.$title.html( eldata.title ); + this.$description.html( eldata.description ); + if(eldata.exif) { + this.$exifInfo.html( eldata.exif ); + this.$exifInfo.show(); + } else this.$exifInfo.hide(); + if(eldata.collectionName) { + this.$collectionName.html( eldata.collectionName ); + this.$collectionName.show(); + } else this.$collectionName.hide(); + if(eldata.buttontext) this.$href.text(eldata.buttontext); + + if (eldata.href && eldata.buttontext) { + 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(); + if (eldata.isVideo) { + // iframe load will only happen when it's appended to page + $( '<iframe allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen/>' ).on("load", function() { + self.$loading.hide(); + }).attr( 'src', eldata.largesrc ).fadeIn( 350 ).appendTo(self.$fullimage); + } else { + $( '<img/>' ).on("load", function() { + var $img = $( this ); + self.$loading.hide(); + self.$fullimage.find( 'img' ).remove(); + self.$largeImg = $img.fadeIn( 350 ); + self.$fullimage.append( self.$largeImg ); + }).attr( 'src', eldata.largesrc ); + } + } else { + if (eldata.isVideo){ + // show video link when iframe is not displayed due to screen size + $('<a target="_blank"/>').attr("href", eldata.largesrc ).appendTo(self.$title); + } + } + }, + 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, + updateList: updateList + }; + +})(); + +// lazy loading thumbnails +document.addEventListener("DOMContentLoaded", function() { + var lazyloadImages= document.querySelectorAll("img.lazy"); + + if ("IntersectionObserver" in window) { + var imageObserver = new IntersectionObserver(function(entries, observer) { + entries.forEach(function(entry) { + if (entry.isIntersecting) { + var image = entry.target; + $(image).on("load", function(){ + image.classList.remove("lazy"); + image.style.removeProperty("width"); + }).attr('src', image.dataset.src); + imageObserver.unobserve(image); + } + }); + }); + + lazyloadImages.forEach(function(image) { + imageObserver.observe(image); + }); + } else {// original code has some issue. Disable lazy loading for now + lazyloadImages.forEach(function(img) { + img.src = img.dataset.src; + img.classList.remove('lazy'); + img.style.removeProperty("width"); + }); + } +})
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