[FEATURE] Hide Mirador when the manifest is empty.

[rosiel]

Overview of feature request

Hide the viewer when empty.

What kind of user is the feature intended for?
User, Site Designer

What inspired the request?
The Mirador viewer still shows up - showing 1 of 0 - when the manifest is empty.

What existing behavior do you want changed?
That the viewer shows up when empty.

Any brand new behavior do you want to add to Islandora?
I want it to be hide-able when empty.

Any related open or closed issues to this feature request?
No

[alxp]

I wonder if we could make this a feature request to Mirador itself, perhaps that it fold itself into a compact view when there's no content.

This is useful either way though so I support this feature and might be able to get time to work on it.

[rosiel]

For the moment we can use Contexts to hide the viewer, for example, require the condition "Node is referenced by other nodes" and use field_member_of, which will activate the context only for nodes with members.