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Diffstat (limited to 'vendor/dialoguer/src/prompts/confirm.rs')
| -rw-r--r-- | vendor/dialoguer/src/prompts/confirm.rs | 287 |
1 files changed, 0 insertions, 287 deletions
diff --git a/vendor/dialoguer/src/prompts/confirm.rs b/vendor/dialoguer/src/prompts/confirm.rs deleted file mode 100644 index 24bcc4c..0000000 --- a/vendor/dialoguer/src/prompts/confirm.rs +++ /dev/null @@ -1,287 +0,0 @@ -use std::io; - -use crate::theme::{SimpleTheme, TermThemeRenderer, Theme}; - -use console::{Key, Term}; - -/// Renders a confirm prompt. -/// -/// ## Example usage -/// -/// ```rust,no_run -/// # fn test() -> Result<(), Box<dyn std::error::Error>> { -/// use dialoguer::Confirm; -/// -/// if Confirm::new().with_prompt("Do you want to continue?").interact()? { -/// println!("Looks like you want to continue"); -/// } else { -/// println!("nevermind then :("); -/// } -/// # Ok(()) } fn main() { test().unwrap(); } -/// ``` -pub struct Confirm<'a> { - prompt: String, - report: bool, - default: Option<bool>, - show_default: bool, - wait_for_newline: bool, - theme: &'a dyn Theme, -} - -impl Default for Confirm<'static> { - fn default() -> Self { - Self::new() - } -} - -impl Confirm<'static> { - /// Creates a confirm prompt. - pub fn new() -> Self { - Self::with_theme(&SimpleTheme) - } -} - -impl Confirm<'_> { - /// Sets the confirm prompt. - pub fn with_prompt<S: Into<String>>(&mut self, prompt: S) -> &mut Self { - self.prompt = prompt.into(); - self - } - - /// Indicates whether or not to report the chosen selection after interaction. - /// - /// The default is to report the chosen selection. - pub fn report(&mut self, val: bool) -> &mut Self { - self.report = val; - self - } - - #[deprecated(note = "Use with_prompt() instead", since = "0.6.0")] - #[inline] - pub fn with_text(&mut self, text: &str) -> &mut Self { - self.with_prompt(text) - } - - /// Sets when to react to user input. - /// - /// When `false` (default), we check on each user keystroke immediately as - /// it is typed. Valid inputs can be one of 'y', 'n', or a newline to accept - /// the default. - /// - /// When `true`, the user must type their choice and hit the Enter key before - /// proceeding. Valid inputs can be "yes", "no", "y", "n", or an empty string - /// to accept the default. - pub fn wait_for_newline(&mut self, wait: bool) -> &mut Self { - self.wait_for_newline = wait; - self - } - - /// Sets a default. - /// - /// Out of the box the prompt does not have a default and will continue - /// to display until the user inputs something and hits enter. If a default is set the user - /// can instead accept the default with enter. - pub fn default(&mut self, val: bool) -> &mut Self { - self.default = Some(val); - self - } - - /// Disables or enables the default value display. - /// - /// The default is to append the default value to the prompt to tell the user. - pub fn show_default(&mut self, val: bool) -> &mut Self { - self.show_default = val; - self - } - - /// Enables user interaction and returns the result. - /// - /// The dialog is rendered on stderr. - /// - /// Result contains `bool` if user answered "yes" or "no" or `default` (configured in [`default`](Self::default) if pushes enter. - /// This unlike [`interact_opt`](Self::interact_opt) does not allow to quit with 'Esc' or 'q'. - #[inline] - pub fn interact(&self) -> io::Result<bool> { - self.interact_on(&Term::stderr()) - } - - /// Enables user interaction and returns the result. - /// - /// The dialog is rendered on stderr. - /// - /// Result contains `Some(bool)` if user answered "yes" or "no" or `Some(default)` (configured in [`default`](Self::default)) if pushes enter, - /// or `None` if user cancelled with 'Esc' or 'q'. - #[inline] - pub fn interact_opt(&self) -> io::Result<Option<bool>> { - self.interact_on_opt(&Term::stderr()) - } - - /// Like [interact](#method.interact) but allows a specific terminal to be set. - /// - /// ## Examples - /// - /// ```rust,no_run - /// use dialoguer::Confirm; - /// use console::Term; - /// - /// # fn main() -> std::io::Result<()> { - /// let proceed = Confirm::new() - /// .with_prompt("Do you wish to continue?") - /// .interact_on(&Term::stderr())?; - /// # Ok(()) - /// # } - /// ``` - #[inline] - pub fn interact_on(&self, term: &Term) -> io::Result<bool> { - self._interact_on(term, false)? - .ok_or_else(|| io::Error::new(io::ErrorKind::Other, "Quit not allowed in this case")) - } - - /// Like [`interact_opt`](Self::interact_opt) but allows a specific terminal to be set. - /// - /// ## Examples - /// ```rust,no_run - /// use dialoguer::Confirm; - /// use console::Term; - /// - /// fn main() -> std::io::Result<()> { - /// let confirmation = Confirm::new() - /// .interact_on_opt(&Term::stdout())?; - /// - /// match confirmation { - /// Some(answer) => println!("User answered {}", if answer { "yes" } else { "no " }), - /// None => println!("User did not answer") - /// } - /// - /// Ok(()) - /// } - /// ``` - #[inline] - pub fn interact_on_opt(&self, term: &Term) -> io::Result<Option<bool>> { - self._interact_on(term, true) - } - - fn _interact_on(&self, term: &Term, allow_quit: bool) -> io::Result<Option<bool>> { - let mut render = TermThemeRenderer::new(term, self.theme); - - let default_if_show = if self.show_default { - self.default - } else { - None - }; - - render.confirm_prompt(&self.prompt, default_if_show)?; - - term.hide_cursor()?; - term.flush()?; - - let rv; - - if self.wait_for_newline { - // Waits for user input and for the user to hit the Enter key - // before validation. - let mut value = default_if_show; - - loop { - let input = term.read_key()?; - - match input { - Key::Char('y') | Key::Char('Y') => { - value = Some(true); - } - Key::Char('n') | Key::Char('N') => { - value = Some(false); - } - Key::Enter => { - if !allow_quit { - value = value.or(self.default); - } - - if value.is_some() || allow_quit { - rv = value; - break; - } - continue; - } - Key::Escape | Key::Char('q') if allow_quit => { - value = None; - } - Key::Unknown => { - return Err(io::Error::new( - io::ErrorKind::NotConnected, - "Not a terminal", - )) - } - _ => { - continue; - } - }; - - term.clear_line()?; - render.confirm_prompt(&self.prompt, value)?; - } - } else { - // Default behavior: matches continuously on every keystroke, - // and does not wait for user to hit the Enter key. - loop { - let input = term.read_key()?; - let value = match input { - Key::Char('y') | Key::Char('Y') => Some(true), - Key::Char('n') | Key::Char('N') => Some(false), - Key::Enter if self.default.is_some() => Some(self.default.unwrap()), - Key::Escape | Key::Char('q') if allow_quit => None, - Key::Unknown => { - return Err(io::Error::new( - io::ErrorKind::NotConnected, - "Not a terminal", - )) - } - _ => { - continue; - } - }; - - rv = value; - break; - } - } - - term.clear_line()?; - if self.report { - render.confirm_prompt_selection(&self.prompt, rv)?; - } - term.show_cursor()?; - term.flush()?; - - Ok(rv) - } -} - -impl<'a> Confirm<'a> { - /// Creates a confirm prompt with a specific theme. - /// - /// ## Examples - /// ```rust,no_run - /// use dialoguer::{ - /// Confirm, - /// theme::ColorfulTheme - /// }; - /// - /// # fn main() -> std::io::Result<()> { - /// let proceed = Confirm::with_theme(&ColorfulTheme::default()) - /// .with_prompt("Do you wish to continue?") - /// .interact()?; - /// # Ok(()) - /// # } - /// ``` - pub fn with_theme(theme: &'a dyn Theme) -> Self { - Self { - prompt: "".into(), - report: true, - default: None, - show_default: true, - wait_for_newline: false, - theme, - } - } -} |