dblclickOpts: Create an object representing double-click options
In sheikhbarabas/shiny: Web Application Framework for R

This generates an object representing dobule-click options, to be passed as the dblclick argument of imageOutput or plotOutput.

1	dblclickOpts(id = NULL, clip = TRUE, delay = 400)

`id`	Input value name. For example, if the value is `"plot_dblclick"`, then the click coordinates will be available as `input$plot_dblclick`.
`clip`	Should the click area be clipped to the plotting area? If FALSE, then the server will receive double-click events even when the mouse is outside the plotting area, as long as it is still inside the image.
`delay`	Maximum delay (in ms) between a pair clicks for them to be counted as a double-click.