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| Helpers | /docs/helpers/ |
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2016-04-13T15:54:02-04:00 |
{% include base_path %} {% include toc icon="gears" title="Helpers" %}
You can think of these Jekyll helpers as little shortcuts. Since GitHub Pages doesn't allow most plugins --- custom tags are out. Instead the theme leverages includes to do something similar.
Base Path
Instead of repeating {% raw %}{{ site.url }}{{ site.baseurl }}{% endraw %} over and over again to create absolute URLs, you can use {% raw %}{{ base_path }}{% endraw %} instead. Simply add {% raw %}{% include base_path %}{% endraw %} to layouts, posts, pages, collections, or other includes and you're good to go.
ProTip: It's a good practice to prepend all assets links (especially post images) with {% raw %}{{ base_path }}{% endraw %} so they correctly resolve in the site's XML feeds.
{: .notice--info}
Group by Array
Jekyll Group-By-Array by Max White.
A liquid include file for Jekyll that allows an object to be grouped by an array.
The Liquid based taxonomy archives found amongst the demo pages rely on this helper.
| Description | ||
|---|---|---|
| All posts grouped by category | [Source][category-array] | [Demo][category-array-demo] |
| All posts grouped by tags | [Source][tag-array] | [Demo][tag-array-demo] |
[category-array]: {{ site.gh_repo }}/gh-pages/_pages/category-archive.html [category-array-demo]: {{ base_path }}/categories/ [tag-array]: {{ site.gh_repo }}/gh-pages/_pages/tag-archive.html [tag-array-demo]: {{ base_path }}/tags/
Gallery
Generate a <figure> element with optional caption of arrays with two or more images.
To place a gallery add the necessary YAML Front Matter.
| Name | Required | Description |
|---|---|---|
| url | Optional | URL to link gallery image to (eg. a larger detail image). |
| image_path | Required | For images placed in the /images/ directory just add the filename and extension. Use absolute URLS for those hosted externally. |
| alt | Optional | Alternate text for image. |
gallery:
- url: unsplash-gallery-image-1.jpg
image_path: unsplash-gallery-image-1-th.jpg
alt: "placeholder image 1"
- url: unsplash-gallery-image-2.jpg
image_path: unsplash-gallery-image-2-th.jpg
alt: "placeholder image 2"
- url: unsplash-gallery-image-3.jpg
image_path: unsplash-gallery-image-3-th.jpg
alt: "placeholder image 3"
And then drop-in the gallery include in the body where you'd like it to appear.
| Include Parameter | Required | Description | Default |
|---|---|---|---|
| id | Optional | To add multiple galleries to a document uniquely name them in the YAML Front Matter and reference in {% raw %}{% include gallery id="gallery_id" %}{% endraw %} |
gallery |
| class | Optional | Use to add a class attribute to the surrounding <figure> element for additional styling needs. |
|
| caption | Optional | Gallery caption description. Markdown is allowed. |
{% raw %}{% include gallery caption="This is a sample gallery with **Markdown support**." %}{% endraw %}
Gallery example with caption:
{% include gallery caption="This is a sample gallery with Markdown support." %}
More Gallery Goodness: A [few more examples]({{ base_path }}{% post_url 2010-09-09-post-gallery %}) and [source code]({{ site.gh_repo }}/gh-pages/_posts/2010-09-09-post-gallery.md) can be seen in the demo site. {: .notice--info}
Feature Row
Designed to compliment the [splash]({{ base_path }}/docs/layouts/#splash-page-layout) page layout as a way of arranging and aligning "feature blocks" containing text or image.
To add a feature row containing three content blocks with text and image, add the following YAML Front Matter
| Name | Required | Description | Default |
|---|---|---|---|
| image_path | Required | For images placed in the /images/ directory just add the filename and extension. Use absolute URLS for those hosted externally. |
|
| alt | Optional | Alternate text for image. | |
| title | Optional | Content block title. | |
| excerpt | Optional | Content block excerpt text. Markdown is allowed. | |
| url | Optional | URL that the button should link to. | |
| btn_label | Optional | Button text label. | more_label in UI Text data file. |
| btn_class | Optional | Button style. See [utility classes]({{ base_path }}/docs/utility-classes/#buttons) for options. | btn |
feature_row:
- image_path: unsplash-gallery-image-1-th.jpg
alt: "placeholder image 1"
title: "Placeholder 1"
excerpt: "This is some sample content that goes here with **Markdown** formatting."
- image_path: unsplash-gallery-image-2-th.jpg
alt: "placeholder image 2"
title: "Placeholder 2"
excerpt: "This is some sample content that goes here with **Markdown** formatting."
url: "#test-link"
btn_label: "Read More"
btn_class: "btn--inverse"
- image_path: unsplash-gallery-image-3-th.jpg
title: "Placeholder 3"
excerpt: "This is some sample content that goes here with **Markdown** formatting."
And then drop-in the feature row include in the body where you'd like it to appear.
| Include Parameter | Required | Description | Default |
|---|---|---|---|
| id | Optional | To add multiple rows to a document uniquely name them in the YAML Front Matter and reference in {% raw %}{% include feature_row id="row2" %}{% endraw %} |
feature_row |
| type | Optional | Alignment of the featured blocks in the row. Options include: left, center, or right aligned. |
{% raw %}{% include feature_row %}{% endraw %}
{% include feature_row %}
More Feature Row Goodness: A [few more examples]({{ base_path }}/splash-page/) and [source code]({{ site.gh_repo }}/gh-pages/_pages/splash-page.md) can be seen in the demo site. {: .notice--info}
Table of Contents
To include an auto-generated table of contents for posts and pages, add the following helper before any actual content in your post or page.
{% raw %}{% include toc %}{% endraw %}
| Parameter | Required | Description | Default |
|---|---|---|---|
| title | Optional | Table of contents title. | toc_label in UI Text data file. |
| icon | Optional | Table of contents icon (shows before the title). | Font Awesome file-text icon. Any other FA icon can be used instead. |
TOC example with custom title and icon
{% raw %}{% include toc icon="gears" title="My Table of Contents" %}{% endraw %}