New: support for responsive menu item image sources (fixes #198)

[kirsty-hames]

Fixes https://github.com/adaptlearning/adapt-contrib-boxMenu/issues/198

Update

• Use image template for consistency with other plugin images and multi device support.

New

• Support for device breakpoint sizes: small, medium, large and xlarge.
• When only small and large images are defined, images switch from small to large at medium (for separate mobile and desktop images). Note, this development is only available to the Framework at present until a core contentobject.model.schema file is updated to offer up the flexibility to the AAT. This is also the case for all other plugins that use the image template.

Testing

Please test the following use cases. All code snippets reference pre-bundled course images.

1. Default support for src

   "_graphic": {
     "src": "course/en/images/menu-item.png",
     "alt": ""
   }

2. Mobile and desktop images

   "_graphic": {
     "large": "course/en/images/menu-item.png",
     "small": "course/en/images/gmcq.png",
     "alt": ""
   }

3. All device sizes

   "_graphic": {
     "xlarge": "course/en/images/vanilla-swatch.jpg",
     "large": "course/en/images/menu-item.png",
     "medium": "course/en/images/vanilla-swatch.jpg",
     "small": "course/en/images/gmcq.png",
     "alt": ""
   },

   Dependencies

   Now that .boxmenu-item__image-container is a <span> (not <div>), Vanilla margin-bottom is no longer supported (inline elements only support horizontal margins). Instead, I'd suggest applying the margin to .boxmenu-item__details as per below. See Vanilla issue https://github.com/adaptlearning/adapt-contrib-vanilla/issues/520

   .boxmenu-item {
   &__image-container + &__details {
   margin-top: @menu-item-image-margin;
   }
   }

[guywillis]

Not sure if it's worth mentioning but this development is only available to the Framework at present until a core contentobject.model.schema file is updated to offer up the flexibility to the AAT ( if that is something we want to do ).

[kirsty-hames]

Not sure if it's worth mentioning but this development is only available to the Framework at present until a core contentobject.model.schema file is updated to offer up the flexibility to the AAT ( if that is something we want to do ).

Thanks @guywillis. That's right and it's the same case for all other plugins that also use the image template. I'll update the PR message to note this.

Plugin README, example.json and schemas only include the image sources they were initially developed to support although they all support the full device range within the FW. For example, GMCQ supports small and large, whilst Accordion only supports src. If we want to extend support for AAT would we be best to do this globally for all plugin images or at least look at this holistically?

[guywillis]

If we want to extend support for AAT would we be best to do this globally for all plugin images or at least look at this holistically?

We'd want to implement a consistent approach globally but is outside the scope of this PR. One to bring to the weekly stand up.

[kirsty-hames]

If we want to extend support for AAT would we be best to do this globally for all plugin images or at least look at this holistically?

We'd want to implement a consistent approach globally but is outside the scope of this PR. One to bring to the weekly stand up.

Just FYI I've raised an issue for this https://github.com/adaptlearning/adapt-contrib-core/issues/563

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