R Shiny showModal和removeModal适用于所有用户

Question

我的一般问题是，我希望在所有用户输入enter按钮后显示模式窗口，然后在所有用户点击actionButton后关闭。

我真的喜欢像

这样的命令

removeModal(domain="Everyone")和showModal(domain="Everyone")

我的方法是填充向量Class$Ready，直到所有值都为TRUE，然后创建窗口。基于评论员，一旦满足条件，我就可以在所有用户页面上显示模式窗口。但我无法为所有用户删除它。

server.R

## Global Variables
Class <<- data.frame(ID=1:10, Ready=rep(FALSE,10) )
GlobClass <<- reactiveValues(Ready=Class$Ready, New=Class$Ready) )

## When Enter is Clicked, Update
observeEvent( input$enter, {
    GlobClass$Ready[ Class$ID == user] <- TRUE
})

## When Everyone has clicked enter, showModal
observeEvent (GlobClass$Ready, {
    if( all(GlobClass$Ready) ){
        showModal( modalDialog(
            h2("Effort"), "Try Harder",
            footer=tagList( actionButton("new", "New Round"))
        ))
     }
})

## When New is Clicked, Update and Hide
observeEvent( input$new, {                    
    GlobClass$New[Class$ID==user] <- TRUE
    shinyjs::hide('new')
})

## When Everyone has clicked New, removeModal and reset
observe( {  invalidateLater(efreq)
    if( all(GlobClass$New) ){
        GlobClass$Ready <- rep(FALSE, nrow(Class))
        GlobClass$New  <- rep(FALSE, nrow(Class))
        removeModal()
    }
})

我遇到的问题是modalWindow仅针对一个人而不是全部删除。如果我改变observe( { invalidateLater(efreq)，情况也是如此 到observeEvent( GlobClass$New, {

编辑：回答

你必须错开电话

observeEvent( GlobClass$New, {
#observe( { invalidateLater(efreq)
    if( all(GlobClass$New) ){
        GlobClass$Ready <- rep(FALSE, nrow(Class))
    }
})

observeEvent( GlobClass$Ready , {
    if( all(!GlobClass$Ready) ){
        GlobClass$New <- rep(FALSE, nrow(Class))
        removeModal()
    } 
})

Answer 1

你可以这样做。我打印出会话数量以查看有多少会话：

library(shiny)

ui <- fluidPage(
  mainPanel(actionButton("Submit","Submit"),textOutput("SessionCount"))
)
vals <- reactiveValues(count=0)

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

  isolate(vals$count <- vals$count + 1)

  session$onSessionEnded(function(){
    isolate(vals$count <- vals$count - 1)
  })

  observeEvent(input$Submit,{
    if(vals$count !=0){
      vals$count <- vals$count - 1
    }
  },ignoreInit = T)


  observeEvent(vals$count,{
    if(vals$count ==0){
      showModal( modalDialog( h2("Effort"), "Try Harder"))
    }
  })

  output$SessionCount <- renderText({
    paste0("Number of Current Sessions: ",vals$count)
  })

}

shinyApp(ui, server)