feat: allow relative paths for image shortcodes (#222)

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Óscar Fernández 2023-11-24 02:10:43 +01:00 committed by GitHub
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title = "Custom shortcodes"
date = 2023-02-19
updated = 2023-08-26
updated = 2023-11-24
description = "This theme includes some useful custom shortcodes that you can use to enhance your posts. Whether you want to display images that adapt to light and dark themes, or format a professional-looking reference section, these custom shortcodes have got you covered."
[taxonomies]
@ -18,63 +18,65 @@ social_media_card = "social_cards/blog_shortcodes.jpg"
**Note**: all image shortcodes have two optional parameters: `full_width`, which defaults to `false` (see [below](#full-width-image)), and `lazy_loading`, which defaults to `true`.
**Note 2**: as of commit XXX, all image shortcodes support relative paths in the `src` parameter.
### Dual theme images
Useful if you want to use a different image for the light and dark themes:
{{ dual_theme_image(light_src="blog/shortcodes/img/paris_day.webp", dark_src="blog/shortcodes/img/paris_night.webp" alt="The Eiffel tower") }}
{{ dual_theme_image(light_src="img/paris_day.webp", dark_src="img/paris_night.webp" alt="The Eiffel tower") }}
#### Usage
```
{{/* dual_theme_image(light_src="blog/shortcodes/img/paris_day.webp", dark_src="blog/shortcodes/img/paris_night.webp" alt="The Eiffel tower") */}}
{{/* dual_theme_image(light_src="img/paris_day.webp", dark_src="img/paris_night.webp" alt="The Eiffel tower") */}}
```
### Invertible image
Good for graphs, line drawings, diagrams… Inverts the colours of the image. The source image will be used for the light theme.
{{ invertible_image(src="blog/shortcodes/img/graph.webp", alt="Invertible graph") }}
{{ invertible_image(src="img/graph.webp", alt="Invertible graph") }}
#### Usage
```
{{/* invertible_image(src="blog/shortcodes/img/graph.webp", alt="Invertible graph") */}}
{{/* invertible_image(src="img/graph.webp", alt="Invertible graph") */}}
```
### Dimmable image
Images with too much brightness or contrast can be jarring against a dark background. Here's an example of a photograph that dims when the dark theme is active.
{{ dimmable_image(src="blog/shortcodes/img/desert_by_oskerwyld.webp", alt="Photograph of a desert, heavenly sky") }}
{{ dimmable_image(src="img/desert_by_oskerwyld.webp", alt="Photograph of a desert, heavenly sky") }}
#### Usage
```
{{/* dimmable_image(src="blog/shortcodes/img/desert_by_oskerwyld.webp", alt="Photograph of a desert, heavenly sky") */}}
{{/* dimmable_image(src="img/desert_by_oskerwyld.webp", alt="Photograph of a desert, heavenly sky") */}}
```
### Swap image on hover
Povides an interaction where the image displayed changes as the user hovers over it. Useful for before-after comparisons, for example.
{{ image_hover(default_src="blog/shortcodes/img/edited.webp", hovered_src="blog/shortcodes/img/raw.webp", default_alt="Edited picture", hovered_alt="Original shot") }}
{{ image_hover(default_src="img/edited.webp", hovered_src="img/raw.webp", default_alt="Edited picture", hovered_alt="Original shot") }}
#### Usage
```
{{/* image_hover(default_src="blog/shortcodes/img/before.webp", hovered_src="blog/shortcodes/img/after.webp", default_alt="Edited picture", hovered_alt="Original shot") */}}
{{/* image_hover(default_src="img/before.webp", hovered_src="img/after.webp", default_alt="Edited picture", hovered_alt="Original shot") */}}
```
### Interactive image toggle
Display an image and switch to a different one on click. Ideal for highlighting differences or drawing attention to details.
{{ image_toggler(default_src="blog/shortcodes/img/mojave_day.webp", toggled_src="blog/shortcodes/img/mojave_night.webp", default_alt="Mojave during the day", toggled_alt="Mojave at night") }}
{{ image_toggler(default_src="img/mojave_day.webp", toggled_src="img/mojave_night.webp", default_alt="Mojave during the day", toggled_alt="Mojave at night") }}
#### Usage
```
{{/* image_toggler(default_src="blog/shortcodes/img/mojave_day.webp", toggled_src="blog/shortcodes/img/mojave_night.webp", default_alt="Mojave during the day", toggled_alt="Mojave at night") */}}
{{/* image_toggler(default_src="img/mojave_day.webp", toggled_src="img/mojave_night.webp", default_alt="Mojave during the day", toggled_alt="Mojave at night") */}}
```
### Full-width image
@ -83,12 +85,12 @@ The image will expand to match the width of the header, which is usually wider t
All other image shortcodes can be made into full-width by setting the optional parameter `full_width` to `true`.
{{ full_width_image(src="blog/shortcodes/img/amsterdam_by_oskerwyld.webp", alt="Photograph of a canal in Amsterdam") }}
{{ full_width_image(src="img/amsterdam_by_oskerwyld.webp", alt="Photograph of a canal in Amsterdam") }}
#### Usage
```
{{/* full_width_image(src="blog/shortcodes/img/amsterdam_by_oskerwyld.webp", alt="Photograph of a canal in Amsterdam") */}}
{{/* full_width_image(src="img/amsterdam_by_oskerwyld.webp", alt="Photograph of a canal in Amsterdam") */}}
```
## Text shortcodes