r - 如何从模块内部切换 Shiny 的选项卡面板？

Question

我正在尝试模块化一个 Shiny 的应用程序，它有一个按钮，可以使用 updateTabsetPanel() 在 tabPanel 之间进行响应式(Reactive)切换。这在非模块化应用程序中有效，但在使 react 包含在模块中时无效。我认为这与模块范围之外的面板有关。下面是最小的例子(非模块化版本有效，模块化版本无效)。有没有办法让模块与 tabPanel 对话？

# Non-modular version
library(shiny)
library(shinydashboard)

ui <- fluidPage(
  fluidRow(
    column(
      width = 12,
      tabBox(
        id = "tabset2",
        type = "tabs",
        selected = "1",
        tabPanel("T1", value = "1", 
                 fluidRow(
                   box(width = 9, "Some content here"),
                   box(width = 3, 
                       actionButton("switchbutton", "Click to swtich")
                   )
                 )
        ),
        tabPanel("T2", value = "2", 
                 fluidRow(
                   box(width = 9, "Some different content here")
                 )
        )
      )
    )
  )
)

server <-  function(input, output, session) {
  observeEvent(input$switchbutton, {
    updateTabsetPanel(session = session,
                      inputId = "tabset2",
                      selected = "2")
  })
}

shinyApp(ui, server)

# Modular version
library(shiny)
library(shinydashboard)

switcherButton <- function(id) {
  ns <- NS(id)
  fluidRow(
    column(
      width = 12,
      tabBox(
        id = "tabset2",
        type = "tabs",
        selected = "1",
        tabPanel("T1", value = "1", 
                 fluidRow(
                   box(width = 9, "Some content here"),
                   box(width = 3, 
                       actionButton(ns("switchbutton"), "Click to switch")
                   )
                 )
        ),
        tabPanel("T2", value = "2", 
                 fluidRow(
                   box(width = 9, "Some different content here")
                 )
        )
      )
    )
  )
}

switcher <- function(input, output, session, parent) {
  observeEvent(input$switchbutton, {
    updateTabsetPanel(session = session,
                      inputId = "tabset2",
                      selected = "2")
  })
}

ui <- fluidPage(
  switcherButton("switcher1")
)

server <-  function(input, output, session) {

  callModule(switcher, "switcher1")

}

shinyApp(ui, server)

我

Answer 1

您忘记将 tabBox id 包装在 ns() 中。只需将 "tabset2" 替换为 ns("tabset2")