# NOT RUN {
## Only run these examples in interactive R sessions
if (interactive()) {
library(shiny)
# ========== Dynamic sidebarMenu ==========
ui <- dashboardPage(
dashboardHeader(title = "Dynamic sidebar"),
dashboardSidebar(
sidebarMenuOutput("menu")
),
dashboardBody()
)
server <- function(input, output) {
output$menu <- renderMenu({
sidebarMenu(
menuItem("Menu item", icon = icon("calendar"))
)
})
}
shinyApp(ui, server)
# ========== Dynamic dropdownMenu ==========
# Example message data in a data frame
messageData <- data.frame(
from = c("Admininstrator", "New User", "Support"),
message = c(
"Sales are steady this month.",
"How do I register?",
"The new server is ready."
),
stringsAsFactors = FALSE
)
ui <- dashboardPage(
dashboardHeader(
title = "Dynamic menus",
dropdownMenuOutput("messageMenu")
),
dashboardSidebar(),
dashboardBody(
fluidRow(
box(
title = "Controls",
sliderInput("slider", "Number of observations:", 1, 100, 50)
)
)
)
)
server <- function(input, output) {
output$messageMenu <- renderMenu({
# Code to generate each of the messageItems here, in a list. messageData
# is a data frame with two columns, 'from' and 'message'.
# Also add on slider value to the message content, so that messages update.
msgs <- apply(messageData, 1, function(row) {
messageItem(
from = row[["from"]],
message = paste(row[["message"]], input$slider)
)
})
dropdownMenu(type = "messages", .list = msgs)
})
}
shinyApp(ui, server)
}
# }
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