jekyll-theme-isabelline/_includes/gallery.html

{% assign gallery_name = include.name | default: "gallery" %}

{% assign gallery_prefix = page.id | prepend: "/assets" | append: "/" | append: gallery_name %}

{% assign sorted_static_files = site.static_files | map: "path" | sort %}

{% assign valid_image_extensions = "jpg,jpeg,png,gif" | split: "," %}

<div class="gallery" id="gallery-{{ gallery_name }}">
	{% assign image_index = 0 %}
	{% assign gallery_nav = "" %}
	<div class="images">
		{% for image_path in sorted_static_files %}
			{% assign image_ext = image_path | split: "." | last %}
			{% if valid_image_extensions contains image_ext %}
				{% if image_path contains gallery_prefix %}
					{% assign image_index = image_index | plus: 1 %}
					<img id="{{ gallery_name }}-{{ image_index }}" src="{{ site.baseurl }}{{ image_path }}" />
				{% endif %}
			{% endif %}
		{% endfor %}
	</div>
	<nav>
		<div class="play">
			<input type="checkbox" checked="false" id="{{ gallery_name }}-play" />
			<label for="{{ gallery_name }}-play"></label>
		</div>
	</nav>
</div>