Build onClick Event

This function helps building onclick event to pass complex instructions to a given listener. This is particularly useful when working with lists of links, most probably generated within an apply instruction over a data.frame.

Usage

onclick_event(target, value = "this.id", namespace = NULL, event = TRUE)

Arguments

target

the input to update on click.

value

the value to send to the input (see details).

namespace

the id of the module to target if so.

event

should Shiny treat it as an event.

Value

a character string.

Details

target defines the name of the input entry to update (i.e. input$target).

value will be passed to the target input. By default, it will send the id of the HTML tag (ex: actionLink, actionButton).

This behavior can be tuned to send a more complex instruction. In particular, a list can be passed to the target input (see example).

See also

action_link()

Examples

if (FALSE) { # \dontrun{
# baseline:
# input$btn_clicked will get the id of the html tag
onclick_event(target = "btn_clicked")

# custom value:
# input$btn_clicked will get "foo"
onclick_event(target = "btn_clicked", value = "foo")

# custom list:
# input$btn_clicked will get the list
onclick_event(target = "btn_clicked", value = list(a = "foo", b = "bar"))

# -- shiny module:
# input$btn_clicked inside "module_id" will get 12
onclick_event(target = "btn_clicked", value = 12, namespace = "module_id")
} # }