pickCheckboxInput: Select set of active checkbox groups and their values

In shinyGizmo: Custom Components for Shiny Applications

Select set of active checkbox groups and their values

Description

The component is connection of dropdown (pickerInput) (or virtualSelectInput) and set of checkbox groups (checkboxGroupInput).

When specific value is selected in dropdown, the related checkbox group becomes active and becomes visible to the user.

Usage

pickCheckboxInput(
  inputId,
  label,
  choices,
  choicesNames = pickCheckboxNames(choices),
  choicesLabels = pickCheckboxLabels(choices),
  selected = NULL,
  max_groups = length(choices),
  ...
)

vsCheckboxInput(
  inputId,
  label,
  choices,
  choicesNames = pickCheckboxNames(choices),
  choicesLabels = pickCheckboxLabels(choices),
  selected = NULL,
  max_groups = length(choices),
  ...
)

updatePickCheckboxInput(
  session,
  inputId,
  choices,
  choicesNames,
  choicesLabels,
  selected
)

updateVsCheckboxInput(
  session,
  inputId,
  choices,
  choicesNames,
  choicesLabels,
  selected
)

Arguments

inputId	Id of 'pickCheckboxInput' component.
label	The component label.
choices	Named list of values. Each element defines a separate checkbox group. The element name defines checkbox group id, whereas its value set of values that should be available in the related checkbox group.
choicesNames	Named list of values (with the same names as 'choices'). Each element value defines what labels should be displayed for each checkbox group. See pickCheckboxNamesAndLabels.
choicesLabels	Named vector storing labels for each checkbox group. The parameter is also used to display values in component dropdown. See pickCheckboxNamesAndLabels.
selected	The initial value or value to be updated. Subset of 'choices'.
max_groups	Number of maximum number of checkboxes allowed in the component. Used to limit amount of new checkbox groups added with 'updatePickCheckboxInput'.
...	Extra parameters passed to pickerInput or virtualSelectInput in case of usage pickCheckboxInput or vsCheckboxInput respectively.
session	Shiny session object.

Value

Nested list of 'shiny.tag' objects, defining html structure of the input, or no value in case of usage of 'updatePickCheckboxInput' method.

Examples

# Possible choices and selected configurations

# Choices as list of unnamed options
# Names are the same as values in the component (if not precised elsewhere)
choices_unnamed <- list(
  fruits = c("orange", "apple", "lemon"),
  vegetables = c("potato", "carrot", "broccoli")
)
# selected only fruits plus orange one within
selected_unnamed <- list(
  fruits = c("orange")
)
# Names for each group precised separately
choices_names = list(
  fruits = c("Orange", "Apple", "Lemon"),
  vegetables = c("Potato", "Carrot", "Broccoli")
)

# Choices as list of named options
# Names are treated as checkbox options labels
choices_named <- list(
  fruits = c("Orange" = "orange", "Apple" = "apple", "Lemon" = "lemon"),
  vegetables = c("Potato" = "potato", "Carrot" = "carrot", "Broccoli" = "broccoli")
)
# selected: fruits plus orange and vegetables carrot
selected_named <- list(
  fruits = c("orange"),
  vegetables= c("carrot")
)

# Same but vegetables selected but empty
# Set group as NA to no options checked (same effect in server input)
selected_named_empty <- list(
  fruits = c("orange"),
  vegetables = NA
)

# Specifying picker and group labels ("key" = "name" rule)
choices_labels <- list("fruits" = "Fruits", "vegetables" = "Vegetables")

if (interactive()) {
  library(shiny)

  ui <- fluidPage(
    sidebarLayout(sidebarPanel(
      pickCheckboxInput(
        "pci1", "1. No names at all",
        choices = choices_unnamed, selected = selected_unnamed
      ), hr(),
      pickCheckboxInput(
        "pci2", "2. Names provided as `choicesNames`",
        choices = choices_unnamed, selected = selected_unnamed, choicesNames = choices_names
      ), hr(),
      pickCheckboxInput(
        "pci3", "3. Names provided directly in choices",
        choices = choices_named, selected = selected_named
      ), hr(),
      pickCheckboxInput(
        "pci4", "4. Group as NA value to select group (without any choices)",
        choices = choices_named, selected = selected_named_empty
      ), hr(),
      pickCheckboxInput(
        "pci5", "5. Group names provided as `choicesLabels`",
        choices = choices_named, selected = selected_named_empty, choicesLabels = choices_labels
      )
    ),
    mainPanel(
      verbatimTextOutput("out1"),
      verbatimTextOutput("out2"),
      verbatimTextOutput("out3"),
      verbatimTextOutput("out4"),
      verbatimTextOutput("out5")
    ))
  )
  server <- function(input, output, session) {
    output$out1 <- renderPrint({print("Result 1."); input$pci1})
    output$out2 <- renderPrint({print("Result 2."); input$pci2})
    output$out3 <- renderPrint({print("Result 3."); input$pci3})
    output$out4 <- renderPrint({print("Result 4."); input$pci4})
    output$out5 <- renderPrint({print("Result 5."); input$pci5})
  }
  shinyApp(ui, server)
}

shinyGizmo documentation built on March 7, 2023, 7:31 p.m.