Imports#index: Move 'New import' button to action links

Begin the process of converting the `ImportDecorator` to the new action
links interface.

For now, only the "New import" button on the top right of the index page
is converted. The rest of the links are commented out for now and will
be treated in a subsequent commit.

Add a new `#class?` method to `AF83::Decorator::Link` that tells callers
whether a CSS class has been defined on the link. This allows us to
determine whether we should force a class or use the one provided in
`_page_header.html.slim`.

We need a way to specify the class of the link in the header because the
"New import" button is supposed to be blue (`.btn-primary`), but the
default for primary action links is white.

Refs #5586

1 files changed, 4 insertions, 0 deletions

diff --git a/lib/af83/decorator/link.rb b/lib/af83/decorator/link.rb
index 55db3f5bb..10e6091aa 100644
--- a/lib/af83/decorator/link.rb
+++ b/lib/af83/decorator/link.rb
@@ -25,6 +25,10 @@ class AF83::Decorator::Link
     link_class args
   end
 
+  def class?
+    @options[:link_class] && !@options[:link_class].empty?
+  end
+
   def method_missing name, *args, &block
     if block_given?
       @options[name] = block