adapt-theme-henna

Henna is a theme based on Vanilla

It provides specific values to styles, including colors, padding, margins, and assets such as fonts and background images. Visit the Vanilla wiki for more information about its functionality and for explanations of key properties.

Installation

As Adapt's core theme, Henna is included with the installation of the Adapt framework and the installation of the Adapt authoring tool.

• If Henna has been uninstalled from the Adapt framework, it may be reinstalled. With the Adapt CLI installed, run the following from the command line:
  adapt install adapt-theme-henna

  Alternatively, this component can also be installed by adding the following line of code to the adapt.json file:
  "adapt-theme-henna": "*"
  Then running the command:
  adapt install
  (This second method will reinstall all plug-ins listed in adapt.json.)

• If Henna has been uninstalled from the Adapt authoring tool, it may be reinstalled using the Plug-in Manager.

Uninstallation

The Adapt framework does not allow the installation of more than one theme at a time. In order to replace Henna it must be uninstalled. With the root of your framework installation as your current working directory, run the following command:
adapt uninstall adapt-theme-henna

Settings overview

Unlike most Adapt plug-ins, the Henna theme has no attributes that are required to be configured in the course JSON files. There is, however, an option to alter the background color of blocks as desired. Configure the attributes highlighted below in blocks.json. These attributes are properly formatted as JSON in example.json.

blocks.json

_theme (object): The theme attributes group contains attributes that override those set in Henna. These include _backgroundColor, _minimumHeights, and _isDividerBlock.

_backgroundColor (string): This value is the name of a color variable that has been defined in less/colors.less. Omit the initial @ that is a part of the variable declaration. For example, an acceptable value is "background-color-inverted".

_minimumHeights (object): The minimum heights attribute group specifies the minimum height of the block at different device widths (_large, _medium, and _small).

_large (number): This value specifies the CSS minimum height when Adapt.device.screenSize' evaluates to "_large".

_medium (number): This value specifies the CSS minimum height when Adapt.device.screenSize' evaluates to "_medium".

_small (number): This value specifies the CSS minimum height when Adapt.device.screenSize' evaluates to "_small".

_isDividerBlock (boolean): - Determines whether the CSS class divider-block (less/src/theme-extras.less) will be applied. Acceptable values are true and false.

Visit the Henna wiki for more information about how to use and manipulate the theme.

Structure

Folder/File	Description
📄 theme.json	Pixel values for screenSize(small, medium, and large)
📄 selection.json	File used for selecting icons at IcoMoon.io that are packaged in fonts/vanilla.*
📁 assets	Location of theme assets (for example: images, loading gif, etc.)
📁 fonts	Location of any theme font files
📁 js	JavaScript files on which the theme depends
📁 less	Location of any LESS based CSS files
📄 less/generic.less	Variables that are not covered by those defined in colors.less, fonts.less, and paddings.less
📁 less/src	Location of LESS files for various Adapt elements
📄 less/src/theme-extras.less	Classes used for bespoke styling
📁 templates	Location of overridden HTML (.hbs) templates
📁 templates/partials	Location of overridden HTML (.hbs) templates required by other templates, specifically buttons.hbs, component.hbs, and state.hbs

Templates

Henna supports customisation for the rendering of various Adapt elements through the use of Handlebars templates. The file name of the template indicates the element it affects. Among the available templates are:

• article.hbs
• block.hbs
• loading.hbs
• navigation.hbs
• page.hbs

Limitations

No known limitations.

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Version number: 2.1.0 Framework versions: 2.1.0
Author / maintainer: Adapt Core Team with contributors
Accessibility support: WAI AA
RTL support: yes
Cross-platform coverage: Chrome, Chrome for Android, Firefox (ESR + latest version), Edge 12, IE 11, IE10, IE9, IE8, IE Mobile 11, Safari iOS 9+10, Safari OS X 9+10, Opera