Build a Shiny UI Widget for a Typed-Tree Node

S3 generic dispatched per node class. Resolves the human-readable label through ptr_resolve_ui_text, namespaces the node's id (and any shortcut_id for source nodes) via ns_fn, and forwards to the registered build_ui hook for the placeholder's keyword.

Usage

build_ui_for(node, ...)

Arguments

node

A typed AST node (e.g. ptr_ph_value, ptr_ph_data_consumer, ptr_ph_data_source, ptr_layer).

...

Additional arguments. Recognized by built-in methods: ui_text, layer_name, ns_fn, shell_copy, label_override (force a specific widget label, used for shared widgets referenced under several params). Consumer placeholders emit only a uiOutput container at static build time; their picker is rendered server-side via ptr_setup_consumer_uis(), which calls the registry's build_ui(node, cols, ...) inside renderUI once cols are resolved.

Value

A shiny.tag (or NULL for nodes that emit no UI).