458 dropdown clear

[TymekDev]

Prior to this change only multi-selection dropdown could be cleared. This change makes update_dropdown_input behavior analogous to shiny::updateSelectInput.

Note: this is a breaking change. Prior to this commit updating with character(0) or "" did not have any effect.

Closes #458

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[jakubnowicki]

This PR breaks the update of dropdown choices:

library(shiny)
library(shiny.semantic)

ui <- semanticPage(
  dropdown_input("simple_dropdown", LETTERS[1:5]),
  actionButton("simple_button", "Update input to use all letters"),
)


server <- shinyServer(function(input, output, session) {
  observeEvent(input$simple_button, {
    update_dropdown_input(session, "simple_dropdown", choices = LETTERS)
  })
})

shinyApp(ui = ui, server = server)

[TymekDev]

@jakubnowicki fixed 👌 options variable had me fooled

[jakubnowicki]

LGTM