spacedef

Functions for working with feld/screen/room proteins and spacefiles (space.yaml). Serves as an implementation of the space definition draft (v. 0.7)

This is a pure Javascript lib (users must do their own e.g. file IO)

Functions for working with space definitions

• validate_viewports_attributes()

    // Returns false if:
    //  - arg null, undefined, not a map, or an empty map
    //  - 'defaults' key is present but nothing else

• validate_windows_attributes()

    // Returns false if:
    //  - args are null, undefined, not a map, or an empty map
    //  - 'defaults' key is present but nothing else
    //  - any item in windows object lacks 'viewports' list or string
    //  - That list or string mentions a viewport which isn't included
    //    in in the viewports collection

• validate_space_attributes()

    // Returns false if:
    //  - args are null, undefined, not a map, or an empty map
    //  - machines list not a list, or empty
    //  - machines list has more than one principal=true
      

• validate_space_defn()

    // Returns false if:
    //  - argumentis null, undefined, not a map, or an empty map
    //  - windows is present but viewports not present
    //  - space is present, but viewports or windows not present
    //  - any section doesn't validate using functions defined above

• viewports_from_space_defn()

    // Given a space definition returns a valid map of viewport definitions 
    // with all defaults installed but overriden by any local attributes.
    // Global defaults instantiated the same way.
    // norm / over / up vectors are harmonized and any missing filled in.
    // If there is no 'viewports' entry at all, returns a map with one 
    // 'defaultviewport' in it.
    // Any "defaults" section is not returned.

• windows_from_space_defn()

    // Given a JSON representation of a space.yaml file, 
    // returns a map of window definitions conforming to
    // space.yaml 'windows' definition.
    // If there are "defaults" present, they'll be copied into all entries 
    // in the collection (overriden by more-local attributes).
    // Global defaults instantiated the same way.
    // If there is no 'windows' entry at all, one default 'main' window 
    // will be returned.

Conversion

• convert_roomfeldscreen_to_space() <<== Spits out a legal space def

    // Given JSON representations of room, feld, and screen proteins,
    // return a JS object representing a valid space.yaml definition,
    // or null on error

Functions for working with feld/screen proteins

• viewports_from_screen_protein()

    // Given a JSON representation of a screen protein, 
    // returns a map of viewport definitions conforming to
    // space.yaml 'viewports' definition

• windows_from_feld_protein()

    // Given a JSON representation of a feld protein, 
    // returns a map of window definitions conforming to
    // space.yaml 'window' definition.
    // Works for both regular and kombi.

• viewports_from_kombi()

    // Given a JSON representation of a kombifeld protein, 
    // returns a JS object (a map) of PARTIAL viewport info -- it's just
    // the info that is novel in the kombifeld file, 
    // found under the "ingests/felds/all/felds" section.
    // Keys are the keys of that section.
    // Values are partial viewport descriptions.
    // We expect the rest of the info about this viewport is in the 
    // screen.protein

• is_screen_protein()

    // Returns true if JSON representation matches valid screen protein

• is_feld_protein()

    // Returns true if JSON representation matches valid feld protein

• is_kombifeld_protein()

    // Given a JSON representation of a kombifeld protein, 
    // returns true if it has the "all" + "kombi" signature 
    // indicating true wild kombifelds

• fold_kombi_info_into()

    // Given two maps, for any key/object pairs which exist in both,
    // kombi attributes 'sizepx' and 'offsetpx' will be
    // imported from the first into the second.  Returns a new list.

• window_names_from_feld_protein()

    // Returns a list of all window names
    //  NOTE: assumes kombifelds only EVER have one window, named main.
    // Seems true in practice.

room.protein functions

• space_from_room_protein()

    //  room.protein has no info about windows, so the windows lists for 
    //  each machine will be EMPTY.

Global defaults

• default_viewport()
• default_window()
• default_space()
• default_room()