bugfix: updateSelectInput handle correctly named list as choices

[DangerousWizardry]

Correct a bug where value is not correctly attributed to the data-value attribute in semantic selectInput when using named list as choices.

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Description

Fix a bug when you use named list as choices list. jsonlite::toJSON badly handle the choices list when it came to R named list. Shiny expect a simple JS array. To do that we just have to unname & unlist the initial choices list to get a value vector.

Definition of Done

• [x] The change is thoroughly documented.
• [x] The CI passes (R CMD check, linter, unit tests, spelling).
• [x] Any generated files have been updated (e.g. .Rd files with roxygen2::roxygenise())

[TymekDev]

Hi, thank you for your contribution! Two questions:

1. Do you happen to have a reproducible example to test the change?
2. Do you know if update_dropdown_input() has some discrepancies too?

[DangerousWizardry]

Here you'll find a reproducible example. It seems to come from named list including spaces in their names.

library(shiny)
library(shiny.semantic)

ui <- semanticPage(
  title = "My page",
  shiny.semantic::selectInput(
    inputId = "item_picker",
    label = "Choose your item",
    choices =  list()
  )

)

server <- function(input, output, session) {

observe({
  item_list <- list("my first item" = 1,"my second item" = 2)
  shiny.semantic::updateSelectInput(session,
                          inputId = "item_picker",
                          label = "Choose your item",
                          choices =  item_list,
                          selected = 2)
})

}

# Run the application 
shinyApp(ui = ui, server = server)