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library(blockr.dag)

The toolbar provides quick access to common graph operations.

Available Actions

The toolbar includes several default operations:

• Zoom in/out - Navigate large workflows.
• Auto fit - Fit entire graph to view.
• Layout - Reset graph layout.
• Add block - Trigger create new blocks.
• Add stack - Trigger create stack.
• Remove selected - Delete selected elements (can be stacks, blocks and links)

Creating Toolbar Items

Toolbar items are declared via new_toolbar_item():

# Toolbar item
item <- new_toolbar_item(
  id = "custom_tool",
  icon = "icon-custom",
  js = "console.log('Custom tool clicked')",
  action = function(board, update, ...) {
    # Server-side logic
  }
)

js can be a string representing a JavaScript function or an R function that takes the namespace ns as input and returns a string:

function(ns) {
  sprintf(
    "(value, target, current) => {
      Shiny.setInputValue('%s', true, {priority: 'event'});
    }",
    ns("add_block")
  )
}

Any new item has to go inside toolbar_items.dag_extension for registration:

toolbar_items.dag_extension <- function(x) {
  list(
    item
  )

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
Health stats visible at Monitor.