New image components (image galleries) (#2877)

Added support for multiple image galleries, and created a sample post
showing how to enable and use them.

---------

Signed-off-by: George Araújo <george.gcac@gmail.com>

_config.yml

@@ -537,6 +537,14 @@ third_party_libraries:
       js: "https://cdn.jsdelivr.net/npm/leaflet@{{version}}/dist/leaflet.min.js"
       js_map: "https://cdn.jsdelivr.net/npm/leaflet@{{version}}/dist/leaflet.js.map"
     version: "1.9.4"
+  lightbox2:
+    integrity:
+      css: "sha256-uypRbsAiJcFInM/ndyI/JHpzNe6DtUNXaWEUWEPfMGo="
+      js: "sha256-A6jI5V9s1JznkWwsBaRK8kSeXLgIqQfxfnvdDOZEURY="
+    url:
+      css: "https://cdn.jsdelivr.net/npm/lightbox2@{{version}}/dist/css/lightbox.min.css"
+      js: "https://cdn.jsdelivr.net/npm/lightbox2@{{version}}/dist/js/lightbox.min.js"
+    version: "2.11.5"
   mathjax:
     integrity:
       js: "sha256-MASABpB4tYktI2Oitl4t+78w/lyA+D7b/s9GEP0JOGI="
@@ -576,6 +584,19 @@ third_party_libraries:
     url:
       js: "https://cdn.jsdelivr.net/npm/mermaid@{{version}}/dist/mermaid.min.js"
     version: "10.7.0"
+  photoswipe:
+    integrity:
+      js: "sha256-VCBpdxvrNNxGHNuTdNqK9kPFkev2XY7DYzHdmgaB69Q="
+    url:
+      css: "https://cdn.jsdelivr.net/npm/photoswipe@{{version}}/dist/photoswipe.min.css"
+      js: "https://cdn.jsdelivr.net/npm/photoswipe@{{version}}/dist/photoswipe.esm.min.js"
+    version: "5.4.4"
+  photoswipe-lightbox:
+    integrity:
+      js: "sha256-uCw4VgT5DMdwgtjhvU9e98nT2mLZXcw/8WkaTrDd3RI="
+    url:
+      js: "https://cdn.jsdelivr.net/npm/photoswipe@{{version}}/dist/photoswipe-lightbox.esm.min.js"
+    version: "5.4.4"
   polyfill:
     url:
       js: "https://cdnjs.cloudflare.com/polyfill/v{{version}}/polyfill.min.js?features=es6"
@@ -588,6 +609,13 @@ third_party_libraries:
       css: "https://cdn.jsdelivr.net/npm/pseudocode@{{version}}/build/pseudocode.min.css"
       js: "https://cdn.jsdelivr.net/npm/pseudocode@{{version}}/build/pseudocode.min.js"
     version: "2.4.1"
+  spotlight:
+    integrity:
+      css: "sha256-Dsvkx8BU8ntk9Iv+4sCkgHRynYSQQFP6gJfBN5STFLY="
+    url:
+      css: "https://cdn.jsdelivr.net/npm/spotlight.js@{{version}}/dist/css/spotlight.min.css"
+      js: "https://cdn.jsdelivr.net/npm/spotlight.js@{{version}}/dist/spotlight.bundle.min.js"
+    version: "0.7.8"
   swiper:
     integrity:
       css: "sha256-yUoNxsvX+Vo8Trj3lZ/Y5ZBf8HlBFsB6Xwm7rH75/9E="
@@ -628,6 +656,14 @@ third_party_libraries:
       js: "https://cdn.jsdelivr.net/npm/vega-lite@{{version}}/build/vega-lite.min.js"
       js_map: "https://cdn.jsdelivr.net/npm/vega-lite@{{version}}/build/vega-lite.min.js.map"
     version: "5.16.3"
+  venobox:
+    integrity:
+      css: "sha256-ohJEB0/WsBOdBD+gQO/MGfyJSbTUI8OOLbQGdkxD6Cg="
+      js: "sha256-LsGXHsHMMmTcz3KqTaWvLv6ome+7pRiic2LPnzTfiSo="
+    url:
+      css: "https://cdn.jsdelivr.net/npm/venobox@{{version}}/dist/venobox.min.css"
+      js: "https://cdn.jsdelivr.net/npm/venobox@{{version}}/dist/venobox.min.js"
+    version: "2.1.8"
 
 # -----------------------------------------------------------------------------
 # Get external JSON data

_includes/head.liquid

@@ -132,6 +132,25 @@
       crossorigin="anonymous"
     >
   {% endif %}
+  <!-- Lightbox2 -->
+  {% if page.images.lightbox2 %}
+    <link
+      defer
+      rel="stylesheet"
+      href="{{ site.third_party_libraries.lightbox2.url.css }}"
+      integrity="{{ site.third_party_libraries.lightbox2.integrity.css }}"
+      crossorigin="anonymous"
+    >
+  {% endif %}
+  <!-- Photoswipe -->
+  {% if page.images.photoswipe %}
+    <link
+      defer
+      rel="stylesheet"
+      href="{{ site.third_party_libraries.photoswipe.url.css }}"
+      crossorigin="anonymous"
+    >
+  {% endif %}
   <!-- Image slider -->
   {% if page.images.slider %}
     <link
@@ -142,6 +161,26 @@
       crossorigin="anonymous"
     >
   {% endif %}
+  <!-- Spotlight -->
+  {% if page.images.spotlight %}
+    <link
+      defer
+      rel="stylesheet"
+      href="{{ site.third_party_libraries.spotlight.url.css }}"
+      integrity="{{ site.third_party_libraries.spotlight.integrity.css }}"
+      crossorigin="anonymous"
+    >
+  {% endif %}
+  <!-- Venobox -->
+  {% if page.images.venobox %}
+    <link
+      defer
+      rel="stylesheet"
+      href="{{ site.third_party_libraries.venobox.url.css }}"
+      integrity="{{ site.third_party_libraries.venobox.integrity.css }}"
+      crossorigin="anonymous"
+    >
+  {% endif %}
 {% endif %}
 
 {% if page.tikzjax %}

_includes/scripts/imageLayouts.liquid

@@ -7,6 +7,26 @@
       crossorigin="anonymous"
     ></script>
   {% endif %}
+  {% if page.images.lightbox2 %}
+    <script
+      defer
+      src="{{ site.third_party_libraries.lightbox2.url.js }}"
+      integrity="{{ site.third_party_libraries.lightbox2.integrity.js }}"
+      crossorigin="anonymous"
+    ></script>
+  {% endif %}
+  {% if page.images.photoswipe %}
+    <script type="module">
+      import PhotoSwipeLightbox from '{{ site.third_party_libraries.photoswipe-lightbox.url.js }}';
+      import PhotoSwipe from '{{ site.third_party_libraries.photoswipe.url.js }}';
+      const photoswipe = new PhotoSwipeLightbox({
+        gallery: '.pswp-gallery',
+        children: 'a',
+        pswpModule: PhotoSwipe,
+      });
+      photoswipe.init();
+    </script>
+  {% endif %}
   {% if page.images.slider %}
     <script
       defer
@@ -15,4 +35,26 @@
       crossorigin="anonymous"
     ></script>
   {% endif %}
+  {% if page.images.spotlight %}
+    <script
+      defer
+      src="{{ site.third_party_libraries.spotlight.url.js }}"
+      crossorigin="anonymous"
+    ></script>
+  {% endif %}
+  {% if page.images.venobox %}
+    <script
+      defer
+      src="{{ site.third_party_libraries.venobox.url.js }}"
+      integrity="{{ site.third_party_libraries.venobox.integrity.js }}"
+      crossorigin="anonymous"
+    ></script>
+    <script>
+      document.addEventListener('readystatechange', () => {
+        if (document.readyState === 'complete') {
+          new VenoBox();
+        }
+      });
+    </script>
+  {% endif %}
 {% endif %}

_posts/2024-12-04-photo-gallery.md

@@ -0,0 +1,97 @@
+---
+layout: post
+title: a post with image galleries
+date: 2024-12-04 01:59:00
+description: this is what included image galleries could look like
+tags: formatting images
+categories: sample-posts
+thumbnail: assets/img/9.jpg
+images:
+  lightbox2: true
+  photoswipe: true
+  spotlight: true
+  venobox: true
+---
+
+The images in this post are all zoomable, arranged into different mini-galleries using different libraries.
+
+## [Lightbox2](https://lokeshdhakar.com/projects/lightbox2/)
+
+<a href="https://cdn.photoswipe.com/photoswipe-demo-images/photos/1/img-2500.jpg" data-lightbox="roadtrip"><img src="https://cdn.photoswipe.com/photoswipe-demo-images/photos/1/img-200.jpg" /></a>
+<a href="https://cdn.photoswipe.com/photoswipe-demo-images/photos/2/img-2500.jpg" data-lightbox="roadtrip"><img src="https://cdn.photoswipe.com/photoswipe-demo-images/photos/2/img-200.jpg" /></a>
+<a href="https://cdn.photoswipe.com/photoswipe-demo-images/photos/3/img-2500.jpg" data-lightbox="roadtrip"><img src="https://cdn.photoswipe.com/photoswipe-demo-images/photos/3/img-200.jpg" /></a>
+
+---
+
+## [PhotoSwipe](https://photoswipe.com/)
+
+<div class="pswp-gallery pswp-gallery--single-column" id="gallery--getting-started">
+  <a href="https://cdn.photoswipe.com/photoswipe-demo-images/photos/2/img-2500.jpg"
+    data-pswp-width="1669"
+    data-pswp-height="2500"
+    target="_blank">
+    <img src="https://cdn.photoswipe.com/photoswipe-demo-images/photos/2/img-200.jpg" alt="" />
+  </a>
+  <!-- cropped thumbnail: -->
+  <a href="https://cdn.photoswipe.com/photoswipe-demo-images/photos/7/img-2500.jpg"
+    data-pswp-width="1875"
+    data-pswp-height="2500"
+    data-cropped="true"
+    target="_blank">
+    <img src="https://cdn.photoswipe.com/photoswipe-demo-images/photos/7/img-200.jpg" alt="" />
+  </a>
+  <!-- data-pswp-src with custom URL in href -->
+  <a href="https://unsplash.com"
+    data-pswp-src="https://cdn.photoswipe.com/photoswipe-demo-images/photos/3/img-2500.jpg"
+    data-pswp-width="2500"
+    data-pswp-height="1666"
+    target="_blank">
+    <img src="https://cdn.photoswipe.com/photoswipe-demo-images/photos/3/img-200.jpg" alt="" />
+  </a>
+  <!-- wrapped with any element: -->
+  <div>
+    <a href="https://cdn.photoswipe.com/photoswipe-demo-images/photos/6/img-2500.jpg"
+      data-pswp-width="2500"
+      data-pswp-height="1667"
+      target="_blank">
+      <img src="https://cdn.photoswipe.com/photoswipe-demo-images/photos/6/img-200.jpg" alt="" />
+    </a>
+  </div>
+</div>
+
+---
+
+## [Spotlight JS](https://nextapps-de.github.io/spotlight/)
+
+<!-- Group 1 -->
+<div class="spotlight-group">
+    <a class="spotlight" href="https://cdn.photoswipe.com/photoswipe-demo-images/photos/1/img-2500.jpg">
+        <img src="https://cdn.photoswipe.com/photoswipe-demo-images/photos/1/img-200.jpg" />
+    </a>
+    <a class="spotlight" href="https://cdn.photoswipe.com/photoswipe-demo-images/photos/2/img-2500.jpg">
+        <img src="https://cdn.photoswipe.com/photoswipe-demo-images/photos/2/img-200.jpg" />
+    </a>
+    <a class="spotlight" href="https://cdn.photoswipe.com/photoswipe-demo-images/photos/3/img-2500.jpg">
+        <img src="https://cdn.photoswipe.com/photoswipe-demo-images/photos/3/img-200.jpg" />
+    </a>
+</div>
+<!-- Group 2 -->
+<div class="spotlight-group">
+    <a class="spotlight" href="https://cdn.photoswipe.com/photoswipe-demo-images/photos/4/img-2500.jpg">
+        <img src="https://cdn.photoswipe.com/photoswipe-demo-images/photos/4/img-200.jpg" />
+    </a>
+    <a class="spotlight" href="https://cdn.photoswipe.com/photoswipe-demo-images/photos/5/img-2500.jpg">
+        <img src="https://cdn.photoswipe.com/photoswipe-demo-images/photos/5/img-200.jpg" />
+    </a>
+    <a class="spotlight" href="https://cdn.photoswipe.com/photoswipe-demo-images/photos/6/img-2500.jpg">
+        <img src="https://cdn.photoswipe.com/photoswipe-demo-images/photos/6/img-200.jpg" />
+    </a>
+</div>
+
+---
+
+## [Venobox](https://veno.es/venobox/)
+
+<a class="venobox" data-gall="myGallery" href="https://cdn.photoswipe.com/photoswipe-demo-images/photos/1/img-2500.jpg"><img src="https://cdn.photoswipe.com/photoswipe-demo-images/photos/1/img-200.jpg" /></a>
+<a class="venobox" data-gall="myGallery" href="https://cdn.photoswipe.com/photoswipe-demo-images/photos/2/img-2500.jpg"><img src="https://cdn.photoswipe.com/photoswipe-demo-images/photos/2/img-200.jpg" /></a>
+<a class="venobox" data-gall="myGallery" href="https://cdn.photoswipe.com/photoswipe-demo-images/photos/3/img-2500.jpg"><img src="https://cdn.photoswipe.com/photoswipe-demo-images/photos/3/img-200.jpg" /></a>