Plugin module for managing board blocks

Logic and user experience for adding/removing blocks to the board can be customized or enhanced by providing an alternate version of this plugin. The default implementation provides a modal-based UI with simple shiny inputs such as drop-downs and text fields.

Usage

manage_blocks(server = manage_blocks_server, ui = manage_blocks_ui)

manage_blocks_server(id, board, update, ...)

manage_blocks_ui(id, board)

Arguments

server, ui

Server/UI for the plugin module

id

Namespace ID

board

The initial board object

update

Reactive value object to initiate board updates

...

Extra arguments passed from parent scope

Value

A plugin container inheriting from manage_blocks is returned by manage_blocks(), while the UI component (e.g. manage_blocks_ui()) is expected to return shiny UI (i.e. shiny::tagList()) and the server component (i.e. manage_blocks_server()) is expected to return NULL.

Details

Updates are mediated via the shiny::reactiveVal() object passed as update, where block updates are communicated as list entry blocks with components add and rm, where

• add may be NULL or a block object (block IDs may not already exist),

• rm may be NULL or a string (of existing block IDs).