Use inside an observeEvent to toggle a taskButton
between busy and ready states around a long-running expression.
Usage
withTaskButton(session, inputId, expr, label_busy = "Processing...")
Arguments
- session
Shiny session object.
- inputId
chr The input ID of the target taskButton.
- expr
Expression to evaluate while the button is in busy state.
- label_busy
chr Label shown during processing. Defaults to "Processing...".
Value
Invisibly returns the result of expr.
