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v2: Introduce show_overlay_excerpt and document (#1436)

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Make excerpts optional in header overlay

Some posts and some header images don't lend themselves well to
displaying the excerpt in the overlay. Make this optional by
introducting a new boolean variable:

`page.header.show_overlay_excerpt`

Set it to implicitly default to `true` so existing users are unaffected by
testing explicitly for "!= false".

This can be enabled globally for a site by changing the default to `false`
in the local _config.yml, or per page by specifying the value in front
matter.

Document show_overlay_excerpt variable

* Add show_overlay_excerpt variable to the Header Overlay field documentation table.

Close #1429
This commit is contained in:
Darren Hart 2018-01-02 13:08:37 -08:00 committed by Michael Rose
parent a94478da59
commit 7bf2b58ede
2 changed files with 9 additions and 8 deletions
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2
_includes/page__hero.html
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@ -42,7 +42,7 @@
{{ page.title | default: site.title | markdownify | remove: "<p>" | remove: "</p>" }}
{% endif %}
</h1>
{% if page.excerpt %}
{% if page.header.show_overlay_excerpt != false and page.excerpt %}
<p class="page__lead">{{ page.excerpt | markdownify | remove: "<p>" | remove: "</p>" }}</p>
{% endif %}
{% if site.read_time and page.read_time %}

15
docs/_docs/10-layouts.md
View file

@ -339,13 +339,14 @@ header:
To overlay text on top of a header image you have a few more options:
| Name | Description | Default |
| ---- | ----------- | ------- |
| **overlay_image** | Header image you'd like to overlay. Same rules as `header.image` from above. | |
| **overlay_filter** | Color/opacity to overlay on top of the header image eg: `0.5` or `rgba(255, 0, 0, 0.5)`. |
| **excerpt** | Auto-generated page excerpt is added to the overlay text or can be overridden. | |
| **cta_label** | Call to action button text label. | `more_label` in UI Text data file |
| **cta_url** | Call to action button URL. | |
| Name | Description | Default |
| ---- | ----------- | ------- |
| **overlay_image** | Header image you'd like to overlay. Same rules as `header.image` from above. | |
| **overlay_filter** | Color/opacity to overlay on top of the header image eg: `0.5` or `rgba(255, 0, 0, 0.5)`. |
| **show_overlay_excerpt** | Display excerpt in the overlay text | true |
| **excerpt** | Auto-generated page excerpt is added to the overlay text or can be overridden. | |
| **cta_label** | Call to action button text label. | `more_label` in UI Text data file |
| **cta_url** | Call to action button URL. | |
With this YAML Front Matter: