174 lines
6.9 KiB
HTML
174 lines
6.9 KiB
HTML
<!--
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Put this file in /layouts/shortcodes/load-photoswipe.html
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Documentation and licence at https://github.com/liwenyip/hugo-easy-gallery/
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-->
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<!-- prevent this shortcode from being loaded more than once per page -->
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{{ if not ($.Page.Scratch.Get "photoswipeloaded") }}
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{{ $.Page.Scratch.Set "photoswipeloaded" 1 }}
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<!--<script src="/js/load-photoswipe.js"></script>-->
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<script>
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/*
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Put this file in /static/js/load-photoswipe.js
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Documentation and licence at https://github.com/liwenyip/hugo-easy-gallery/
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*/
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/* Show an alert if this js file has been loaded twice */
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if (window.loadphotoswipejs) {
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window.alert("You've loaded load-photoswipe.js twice. See https://github.com/liwenyip/hugo-easy-gallery/issues/6")
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}
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var loadphotoswipejs = 1
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/* TODO: Make the share function work */
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document.addEventListener('DOMContentLoaded', function() {
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var items = []; // array of slide objects that will be passed to PhotoSwipe()
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// for every figure element on the page:
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document.querySelectorAll('figure').forEach(function($figure, index) {
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if ($figure.className == 'no-photoswipe') return true; // ignore any figures where class="no-photoswipe"
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var $a = $figure.querySelector('a'),
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$img = $figure.querySelector('img'),
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$src = $a.href,
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$title = $img.alt,
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$msrc = $img.src;
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// if data-size on <a> tag is set, read it and create an item
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if ($a.dataset.size) {
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var $size = $a.dataset.size.split('x');
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var item = {
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src : $src,
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w : $size[0],
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h : $size[1],
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title : $title,
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msrc : $msrc
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};
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{{ if .Site.Params.debug }}
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console.log("Using pre-defined dimensions for " + $src);
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{{ end }}
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// if not, set temp default size then load the image to check actual size
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} else {
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var item = {
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src : $src,
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w : 400, // temp default size
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h : 300, // temp default size
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title : $title,
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msrc : $msrc
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};
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{{ if .Site.Params.debug }}
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console.log("Using default dimensions for " + $src);
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{{ end }}
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// load the image to check its dimensions
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// update the item as soon as w and h are known (check every 30ms)
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var img = new Image();
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img.src = $src;
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var wait = setInterval(function() {
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var w = img.naturalWidth,
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h = img.naturalHeight;
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if (w && h) {
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clearInterval(wait);
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item.w = w;
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item.h = h;
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{{ if .Site.Params.debug }}
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console.log("Got actual dimensions for " + img.src);
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{{ end }}
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// Update the figure parent div's max width.
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var $parentDiv = $figure.parentElement;
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if (!$parentDiv.hasOwnProperty("style")) {
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$figure.parentElement.style = "max-width: " + w + "px"
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}
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}
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}, 30);
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}
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// Save the index of this image then add it to the array
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items.push(item);
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// Event handler for click on a figure
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$figure.addEventListener('click', function(event) {
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event.preventDefault(); // prevent the normal behaviour i.e. load the <a> hyperlink
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// Get the PSWP element and initialize it with the desired options
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var $pswp = document.querySelector('.pswp');
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var options = {
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index: index,
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bgOpacity: 0.8,
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showHideOpacity: true,
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showHideAnimationType: 'zoom',
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focus: 'false',
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history: 'false'
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}
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new PhotoSwipe($pswp, PhotoSwipeUI_Default, items, options).init();
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}, false);
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});
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}, false);
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</script>
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<!-- Photoswipe css/js libraries -->
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{{ with .Site.Params.CDNJS }}
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<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/photoswipe/4.1.3/photoswipe.min.css" integrity="sha256-LWdHSKWG7zv3DTpee8YAgoTfkj3gNkfauF624h4P2Nw=" crossorigin="anonymous" />
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<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/photoswipe/4.1.3/default-skin/default-skin.min.css" integrity="sha256-Q9bBMw/rHRRag46GDWY84J3elDNc8JJjKXL9tIC4oe8=" crossorigin="anonymous" />
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<script src="https://cdnjs.cloudflare.com/ajax/libs/photoswipe/4.1.3/photoswipe.min.js" integrity="sha256-ePwmChbbvXbsO02lbM3HoHbSHTHFAeChekF1xKJdleo=" crossorigin="anonymous"></script>
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<script src="https://cdnjs.cloudflare.com/ajax/libs/photoswipe/4.1.3/photoswipe-ui-default.min.js" integrity="sha256-UKkzOn/w1mBxRmLLGrSeyB4e1xbrp4xylgAWb3M42pU=" crossorigin="anonymous"></script>
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{{- else -}}
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<link rel="stylesheet" href="{{ "/css/3p/photoswipe.min@4.1.3.css" | relURL }}"></script>
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<link rel="stylesheet" href="{{ "/css/3p/default-skin/default-skin.min@4.1.3.css" | relURL }}"></script>
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<script src="{{ "/js/3p/photoswipe.min@4.1.3.js" | relURL }}"></script>
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<script src="{{ "/js/3p/photoswipe-ui-default.min@4.1.3.js" | relURL }}"></script>
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{{ end }}
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<style>
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.pswp__caption a
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, .pswp__caption small a
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, .pswp__caption__center a {
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color: #CCC;
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/* text-decoration: none; */
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}
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</style>
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<!-- Root element of PhotoSwipe. Must have class pswp. -->
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<div class="pswp" tabindex="-1" role="dialog" aria-hidden="true">
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<!-- Background of PhotoSwipe.
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It's a separate element, as animating opacity is faster than rgba(). -->
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<div class="pswp__bg"></div>
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<!-- Slides wrapper with overflow:hidden. -->
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<div class="pswp__scroll-wrap">
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<!-- Container that holds slides.
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PhotoSwipe keeps only 3 of them in DOM to save memory.
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Don't modify these 3 pswp__item elements, data is added later on. -->
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<div class="pswp__container">
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<div class="pswp__item"></div>
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<div class="pswp__item"></div>
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<div class="pswp__item"></div>
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</div>
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<!-- Default (PhotoSwipeUI_Default) interface on top of sliding area. Can be changed. -->
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<div class="pswp__ui pswp__ui--hidden">
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<div class="pswp__top-bar">
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<!-- Controls are self-explanatory. Order can be changed. -->
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<div class="pswp__counter"></div>
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<button class="pswp__button pswp__button--close" title="Close (Esc)"></button>
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<button class="pswp__button pswp__button--share" title="Share"></button>
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<button class="pswp__button pswp__button--fs" title="Toggle fullscreen"></button>
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<button class="pswp__button pswp__button--zoom" title="Zoom in/out"></button>
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<!-- Preloader demo http://codepen.io/dimsemenov/pen/yyBWoR -->
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<!-- element will get class pswp__preloader--active when preloader is running -->
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<div class="pswp__preloader">
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<div class="pswp__preloader__icn">
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<div class="pswp__preloader__cut">
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<div class="pswp__preloader__donut"></div>
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</div>
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</div>
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</div>
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</div>
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<div class="pswp__share-modal pswp__share-modal--hidden pswp__single-tap">
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<div class="pswp__share-tooltip"></div>
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</div>
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<button class="pswp__button pswp__button--arrow--left" title="Previous (arrow left)">
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</button>
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<button class="pswp__button pswp__button--arrow--right" title="Next (arrow right)">
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</button>
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<div class="pswp__caption">
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<div class="pswp__caption__center"></div>
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</div>
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</div>
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</div>
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</div>
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{{ end }}
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