Of course the wizard-state map should be wrapped in an atom. And :callback can
just be foo-valid? if called with no arguments. Maybe :validator is a better
name, because it's not really a callback.
On Sunday, October 5, 2014 2:37:52 PM UTC+2, Michiel Borkent wrote:
> > 1. How to enable/disable Steps (and prev/next buttons) depending on
> > validation results of the form in a current step? Particularly, I'm trying
> > to understand if it's possible to bind a validation function to step
> > enablement property
>
> A possible approach: keep the "valid-state" of each component in a map, along
> with data which view is currently showing.
>
> Atom for a specific wizard instance:
> (def wizard-state {:showing :foo
> :panel-states {:foo false
> :bar false}}
>
> Then each component can provide a callback by which the wizard can determine
> the validity of the currently showing component:
>
> [wizard menu-state
> {:id :foo :title "Foo" :component [foo-panel] :callback (fn []
> (foo-valid?))}
> {:id :bar :title "Bar" :component [bar-panel] :callback (fn []
> (bar-valid?)}]
>
> foo-valid? would be a specific function for the foo panel, like
> (and (seq (-> @foo-state :field1)) (seq (-> @foo-state :field2)))
>
> > 2. How to bind "next/previous" buttons state to "steps" state? For example,
> > for the 1st step "Previous" button should not be visible.
>
> This logic should be encoded in the wizard, if the wizard is responsible for
> showing the previous or next button. It it is rendering the first element,
> disable previous. If the current showing panel is not valid (according to
> callback) or if showing the last panel, disable next.
--
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