When I use shinyjs::togglestate to compare all input variables from the UI with the modalDialog's input variables, it only works for the first time. If I close the modal dialog and open it again, it doesnt work!
The reactive rule is:
- if they are equal: button is blocked
- if they are different: the button is enabled
Obs: the values from the modal dialog variables must be the input values choosed in the UI. (This is very commom example if you have a database check and you just want to update it, if something changed)
I created this simple App to represent the issue.
Just run it, click the button once, observe the expected behavior, close modal dialog, click second time and watch that it doesnt work anymore, but if you change some value in the modal dialog, and come back to the original input value it suddenly "remembers" to work again.
library(shiny)
library(shinyjs)
shinyApp(
ui =
fluidPage(
useShinyjs(),
sidebarLayout(
sidebarPanel(
textInput("txt1","text"),
selectInput("select1","select",c("A","B","C")),
numericInput("n1","numeric",1),
dateInput("d1","date",value = Sys.Date()),
actionButton("go", "Go")),
mainPanel())
),
server =
function(input, output, session) {
observe({
shinyjs::toggleState("click", !(input$txt1 == input$txt2 &&
input$select1 == input$select2 &&
input$n1 == input$n2 &&
input$d1 == input$d2
) )
})
observeEvent(input$go,{
showModal(
modalDialog(
textInput("txt2", "text", input$txt1),
selectInput("select2", "select", c("A","B","C"), input$select1),
numericInput("n2", "numeric", input$n1 ),
dateInput("d2", "date", value = input$d1),
actionButton("click", "Click")
)
)
})
}
)
Why there's such unexpected behavior? Is there any turn around for it?
Thank you in advance !