glassTabCondition: Build a conditionalPanel condition for a glasstabs widget

In glasstabs: Animated Glass-Style Tabs and Select Inputs for 'Shiny'

Build a conditionalPanel condition for a glasstabs widget

Description

Returns a JavaScript condition string that evaluates to TRUE when the specified glasstabs widget has a given active tab. Pass the result directly to the condition argument of shiny::conditionalPanel().

Usage

glassTabCondition(id, value)

Arguments

id	The id passed to glassTabsUI(). Inside a Shiny module use ns("tabs") here (same id you passed to glassTabsUI()), NOT the bare id you pass to glassTabsServer().
value	The tab value string (the value argument of the target glassTabPanel()) that should trigger the condition.

Value

A single character string for use in shiny::conditionalPanel().

See Also

Other glass tabs: appendGlassTab(), disableGlassTab(), glassTabPanel(), glassTabsOutput(), glassTabsServer(), glassTabsUI(), renderGlassTabs(), showGlassTab(), updateGlassTabBadge(), updateGlassTabsUI()

Examples

# Returns a plain JS condition string - no Shiny session needed:
glassTabCondition("main", "details")

# Inside a module - use ns() for the id:
# UI:   glassTabCondition(ns("tabs"), "details")
# This produces: "input['mymod-tabs-active_tab'] === 'details'"

# Full app example showing conditionalPanel usage:
if (interactive()) {
  library(shiny)
  ui <- fluidPage(
    useGlassTabs(),
    glassTabsUI(
      "main",
      glassTabPanel("overview", "Overview", selected = TRUE,
        p("Always visible.")),
      glassTabPanel("details", "Details",
        p("Detail pane."))
    ),
    conditionalPanel(
      condition = glassTabCondition("main", "details"),
      wellPanel("This panel only shows on the Details tab.")
    )
  )
  server <- function(input, output, session) {}
  shinyApp(ui, server)
}

glasstabs documentation built on Sept. 11, 2026, 5:08 p.m.