Resize sensor

Documentation: https://blueprintjs.com/docs/#core/components/resize-sensor

Usage

ResizeSensor(...)

ResizeSensor.shinyInput(inputId, ...)

Arguments

...

Component props and children. See the official Blueprint docs for details.

inputId

The input slot that will be used to access the value.

Value

Object with shiny.tag class suitable for use in the UI of a Shiny app.

Examples

library(shiny.blueprint)
library(shiny)

setInput <- function(inputId, accessor = NULL) {
  JS(paste0(
    "x => Shiny.setInputValue('", inputId, "', x", accessor, ")"
  ))
}

printSize <- function(content) {
  paste0(content$width, "x", content$height)
}

ui <- function(id) {
  ns <- NS(id)
  tagList(
    tags$style("
      .resizable {
        overflow: auto;
        resize: both;
        width: 100px;
        height: 100px;
        background: silver;
      }
    "),
    ResizeSensor(
      onResize = setInput(ns("resize"), "[0].contentRect"),
      div(
        class = "resizable",
        textOutput(ns("size"))
      )
    ),
    ResizeSensor.shinyInput(
      inputId = ns("resizeSensor"),
      content = div(
        textOutput(ns("resizeSensorInput")),
        style = "
          border: 1px solid black;
          width: 100px;
        "
      )
    )
  )
}

server <- function(id) {
  moduleServer(id, function(input, output, session) {
    output$size <- renderText({
      content <- req(input$resize)
      printSize(content)
    })
    output$resizeSensorInput <- renderText({
      content <- req(input$resizeSensor)
      printSize(content)
    })
  })
}

if (interactive()) shinyApp(ui("app"), function(input, output) server("app"))