glassSelect: Animated glass single-select dropdown

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

Animated glass single-select dropdown

Description

A stylized single-select Shiny input with optional search, clear control, selection-marker styling, and programmatic updates via updateGlassSelect().

Usage

glassSelect(
  inputId,
  choices,
  selected = NULL,
  label = NULL,
  placeholder = "Select an option",
  searchable = TRUE,
  clearable = FALSE,
  include_all = FALSE,
  all_choice_label = "All categories",
  all_choice_value = "__all__",
  check_style = c("checkbox", "check-only", "filled"),
  theme = "dark",
  shape = c("rounded", "square"),
  width = NULL,
  disabled = FALSE,
  disabled_choices = NULL,
  server = FALSE,
  server_limit = 50L,
  server_min_chars = 0L
)

Arguments

inputId	Shiny input id.
choices	Named or unnamed character vector of choices.
selected	Initially selected value. Defaults to NULL.
label	Optional field label shown above the widget.
placeholder	Trigger label when nothing is selected.
searchable	Logical. Show search input inside dropdown? Default TRUE.
clearable	Logical. Show clear control for removing the current selection? Default FALSE.
include_all	Logical. Prepend an explicit "All" option. Default FALSE.
all_choice_label	Label used for the explicit "All" option.
all_choice_value	Value used for the explicit "All" option.
check_style	One of "checkbox" (default), "check-only", or "filled".
theme	Color theme. One of "dark" (default), "light", "auto", or a glass_select_theme() object. "auto" uses the light preset by default and switches to the dark preset when an ancestor carries data-bs-theme="dark".
shape	Corner style for the trigger and dropdown. One of "rounded" (default) for the signature glass look, or "square" for crisp, selectize-style corners so the widget sits neatly alongside native Shiny selectizeInput() controls.
width	Optional widget width passed to shiny::validateCssUnit(), e.g. 100% or 240px. When NULL (default) the trigger keeps its intrinsic width.
disabled	Logical. When TRUE the whole widget is greyed out and non-interactive. Default FALSE.
disabled_choices	Optional character vector of choice values to render as disabled (non-selectable) rows. Default NULL.
server	Logical. If TRUE, render only an initial slice of choices and use glassSelectServer() to search the full choice set from the Shiny server. Default FALSE.
server_limit	Maximum number of choices rendered initially and returned for each server-side search. Default 50.
server_min_chars	Minimum search characters required before server-side matching filters choices. Default 0.

Details

The widget registers one Shiny input:

• input$<inputId> : selected value as a length-1 character string, or NULL when nothing is selected

Value

An htmltools::tagList containing the single-select trigger, dropdown panel, and scoped <style> block.

See Also

Other glass select widgets: glassMultiSelect(), glassMultiSelectServer(), glassMultiSelectValue(), glassSelectServer(), glassSelectValue(), updateGlassMultiSelect(), updateGlassSelect()

Examples

fruits <- c(Apple = "apple", Banana = "banana", Cherry = "cherry")

fruit_select <- glassSelect("fruit", fruits)

selected_fruit <- glassSelect(
  "fruit",
  fruits,
  selected = "banana",
  clearable = TRUE
)

all_fruits <- glassSelect(
  "fruit",
  fruits,
  include_all = TRUE,
  all_choice_label = "All fruits",
  all_choice_value = "__all__"
)

filled_fruit <- glassSelect(
  "fruit",
  fruits,
  check_style = "filled"
)

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