UI.Facade

UI.Facade

• Collect all strings used in the UI into a single file

• Useful for co-branding or internationalization

• Map URIs to and from Tasks

• Task

  • UI.Task

  • parse_uri() handles incoming URIs

  • format_uri() handles outgoing URIs

  • /foo/bar

  • ?/baz

  • see also Concepts/Name_with_Discipline

• Text: strings for user interface

• Constant: often per-facade configuration

  • ThreePartPage_want_ForumDropDown

  • ThreePartPage_want_dock_left_standard

• Color

• Font

• FormError: customize error messages

• HTML

Extreme Sharing

• we want as much default behavior handled in the framework

• we want the application to be able to override anything in the framework

• UI.Text->get_value('some.really.very.specific.key', $req)

  • looks for values in the facade repeatedly, starting with most specific

  • pops off the left-most word and looks again

• Keys used in a framework UI/View are fairly specific

• Keys in UI.FacadeBase are fairly general

• Application facades override defaults with more specific keys

Once and only once payed off

• Added per-realm customization for Facade keys

• get_value() looks first for realm_owner_<auth_realm>.some.realy.very.specific.key

• we use different labels in site-admin realm

• UI.FacadeBase