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pub trait CursiveExt {
type Cursive;
fn default() -> Self::Cursive;
#[cfg(feature = "ncurses-backend")]
fn ncurses() -> std::io::Result<Self::Cursive>;
#[cfg(feature = "pancurses-backend")]
fn pancurses() -> std::io::Result<Self::Cursive>;
#[cfg(feature = "termion-backend")]
fn termion() -> std::io::Result<Self::Cursive>;
#[cfg(feature = "crossterm-backend")]
fn crossterm() -> Result<Self::Cursive, crossterm::ErrorKind>;
#[cfg(feature = "blt-backend")]
fn blt() -> Self::Cursive;
}
impl CursiveExt for cursive_core::Cursive {
type Cursive = Self;
fn default() -> Self::Cursive {
cfg_if::cfg_if! {
if #[cfg(feature = "blt-backend")] {
Self::blt()
} else if #[cfg(feature = "termion-backend")] {
Self::termion().unwrap()
} else if #[cfg(feature = "crossterm-backend")] {
Self::crossterm().unwrap()
} else if #[cfg(feature = "pancurses-backend")] {
Self::pancurses().unwrap()
} else if #[cfg(feature = "ncurses-backend")] {
Self::ncurses().unwrap()
} else {
log::warn!("No built-it backend, falling back to Cursive::dummy().");
Self::dummy()
}
}
}
#[cfg(feature = "ncurses-backend")]
fn ncurses() -> std::io::Result<Self> {
Self::try_new(crate::backends::curses::n::Backend::init)
}
#[cfg(feature = "pancurses-backend")]
fn pancurses() -> std::io::Result<Self> {
Self::try_new(crate::backends::curses::pan::Backend::init)
}
#[cfg(feature = "termion-backend")]
fn termion() -> std::io::Result<Self> {
Self::try_new(crate::backends::termion::Backend::init)
}
#[cfg(feature = "crossterm-backend")]
fn crossterm() -> Result<Self, crossterm::ErrorKind> {
Self::try_new(crate::backends::crossterm::Backend::init)
}
#[cfg(feature = "blt-backend")]
fn blt() -> Self {
Self::new(crate::backends::blt::Backend::init)
}
}