Following grid table in https://wiki.magnolia-cms.com/display/UX/M6+Keyboard+navigation this issue should implement support for:

• n - new item
• m - move action
• CTRL + C, X, V, D (copy, cut?, paste, duplicate) — these will first need to be discussed with Anja and specified in the above mentioned doc.

Development notes:

• Noop exists in info.magnolia.ui.api.action.ActionExecutor that should ideally replace introduced info.magnolia.ui.contentapp.browser.actions.ShortcutActionsExecutor.Noop
  • However info.magnolia.ui.contentapp.browser.ActionExecutionService is main user — loses access to the Noop.
  • Which is then used in ActionbarPresenter to execute actions (undesirable)

• info.magnolia.ui.dialog.ActionExecution could be reused and adapted
  • Resides in dialog package, would be used however in more contexts (browser) 
  • would need to handle more than one item.

• Emulate generic way of applying shortcut listeners to all actions that have a shortcut like Sasha did it for dialogs (see below) instead of having an interface method per action as is done now with delete and default action in info.magnolia.ui.actionbar.definition.ActionbarDefinition: 

ContentDetailSubApp

  Map<Integer, Runnable> shortcuts = actionExecutions.stream().filter(execution -> execution.getDefinition().getShortcut() > 0) .collect(toMap(execution -> execution.getDefinition().getShortcut(), actionExecution -> (Runnable) actionExecution::execute));

• rewrite e, m, delete shortcuts to use this approach instead of ActionbarPresenter