Text box action items

It would be great if we could respond to typing actions within text boxes similar to how we respond to row selection within data tables. This would be great for things like todolists, or anywhere where the user was using text boxes to enter data. Currently people need to add an action button to handle this interaction, but it would be cleaner to respond to the carriage return.

from shiny import App, render, ui, reactive

app_ui = ui.page_fluid(
    ui.h2("Hello Shiny!"),
    ui.input_text("entry", "Enter text"),
    ui.output_text_verbatim("txt"),
)


def server(input, output, session):
    @output
    @render.text
    @reactive.event(input.entry_carriage())
    def txt():
        with reactive.isolate():
            txt = input.entry()

        return f"You entered {txt}"


app = App(app_ui, server)

Start with the ui.input_text component and the input.entry_carriage() event shown in the example, then inspect how row-selection actions are exposed. Done means a text-box carriage return can trigger a reactive response without requiring a separate action button, as demonstrated by the supplied app.