Merge branch 'master' into mathjax-support

.gitignore

@@ -16,4 +16,4 @@ hugo.darwin
 hugo.linux
 
 # Temporary lock file while building
-/.hugo_build.lock
+.hugo_build.lock

exampleSite/config.yaml

@@ -62,6 +62,11 @@ params:
   # Note the lack of "" in true, it should be of boolean type.
   useBootstrapCDN: false
 
+  # If you want to load dynamically responsive images from Cloudinary
+  # This requires your images to be uploaded + hosted on Cloudinary
+  # Uncomment and change YOUR_CLOUD_NAME to the Cloud Name in your Cloudinary console
+  # cloudinary_cloud_name: "YOUR_CLOUD_NAME"
+
   # Whether the fade animations on the home page will be enabled
   animate: true
 

exampleSite/content/blogs/rich-content.md

@@ -51,3 +51,25 @@ Hugo ships with several [Built-in Shortcodes](https://gohugo.io/content-manageme
 <br>
 {{< youtube w7Ft2ymGmfc >}}
 <br>
+
+## Theme Custom Shortcodes
+
+These shortcodes are not Hugo built-ins, but are provided by the theme.
+
+### Responsive Images with Cloudinary
+
+You can learn more about this [here](https://cloudinary.com/documentation/responsive_images).
+
+Set the `cloudinary_cloud_name` parameter in your site config to use this shortcode.
+
+```
+{{</* dynamic-img src="/my/image/on/cloudinary" title="A title for the image" */>}}
+```
+
+Note that you do not include the file extension (e.g. `.png`) in the `src` parameter, as the shortcode will automatically determine the best quality and format for the user's device.
+
+Optionally, you can customize the general CSS styles for the image:
+
+```
+{{</* dynamic-img src="/my/image/on/cloudinary" title="A title for the image" style="max-width:60%" */>}}
+```

layouts/partials/head.html

@@ -1,6 +1,7 @@
 <meta charset="UTF-8">
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
 <meta http-equiv="X-UA-Compatible" content="ie=edge">
+<meta http-equiv="Accept-CH" content="DPR, Viewport-Width, Width">
 <link rel="icon" href={{ .Site.Params.favicon | default "/fav.png" }} type="image/gif">
 
 <!-- Fonts -->

layouts/partials/scripts.html

@@ -67,6 +67,7 @@
     <script src="/js/search.js"></script>
 {{ end }}
 
+
 {{ if (.Params.mathjax | default false) }}
 
 {{ "<!-- MathJax -->" | safeHTML }}
@@ -85,5 +86,15 @@
       }
     });
 </script>
+{{ end }}
+
+{{ if (.Site.Params.cloudinary_cloud_name | default false) }}
+
+{{ "<!-- cloudinary -->" | safeHTML }}
+<script src="https://unpkg.com/cloudinary-core@2.13.0/cloudinary-core-shrinkwrap.js" integrity="sha384-0bQduxVhZMs6xfvcPH9osdUIw44hjF8EahHuQBdyN6Rryk8tgyFO80Yz5d14F+5d" crossorigin="anonymous"></script>
+<script type="text/javascript">
+    var cl = cloudinary.Cloudinary.new({cloud_name: "{{- .Site.Params.cloudinary_cloud_name }}"}); 
+    cl.responsive();
+</script>
 
 {{ end }}

layouts/shortcodes/dynamic-img.html

@@ -0,0 +1,5 @@
+{{ $image := .Get "src" }}
+{{ $alt := .Get "title" }}
+{{ $width := .Get "width" | default "w_auto" }}
+{{ $style := .Get "style" | default "max-width:80%" }}
+<img alt="{{ $alt }}" title="{{ $alt }}" data-src="https://res.cloudinary.com/{{ $.Site.Params.cloudinary_cloud_name }}/{{ $width }},c_scale,f_auto,q_auto,dpr_auto{{ $image}}" class="cld-responsive" style="padding-bottom: 16px; display: block; margin: auto; {{ $style }}">