minicrossterm/src/common/functions.rs
Timon 4d2fba2c0d
Doc updates and MdBook (#50)
* Updated readme and docs, and created an MdBook
2018-11-25 14:17:11 +01:00

86 lines
2.5 KiB
Rust

//! Some actions need to preformed platform independently since they can not be solved `ANSI escape codes`.
use super::TerminalOutput;
use std::io::{self, Write};
use std::sync::Arc;
#[cfg(windows)]
use kernel::windows_kernel::ansi_support::{try_enable_ansi_support, windows_supportable};
#[cfg(windows)]
use kernel::windows_kernel::terminal::{exit, terminal_size};
#[cfg(windows)]
use kernel::windows_kernel::cursor::pos;
#[cfg(unix)]
use kernel::unix_kernel::terminal::{exit, pos, terminal_size};
/// Get the terminal size based on the current platform.
pub fn get_terminal_size() -> (u16, u16) {
terminal_size()
}
/// Get the cursor position based on the current platform.
pub fn get_cursor_position() -> (u16, u16) {
#[cfg(unix)]
return pos().expect("Valide position");
#[cfg(windows)]
return pos();
}
/// exit the current terminal.
pub fn exit_terminal() {
exit();
}
#[cfg(windows)]
/// Get an module specific implementation of a the generic given type based on the current platform.
/// If the current platform is windows and it supports ansi escape codes it will return the ansi implementation and if not it will return the winapi implementation.
/// If the current platform is unix it will return the ansi implementation.
pub fn get_module<T>(winapi_impl: T, unix_impl: T) -> Option<T> {
let mut term: Option<T> = None;
let mut does_support = true;
if !windows_supportable() {
// Try to enable ansi on windows if not than use WINAPI.
does_support = try_enable_ansi_support();
// uncomment this line when you want to use the winapi implementation.
// does_support = false;
if !does_support {
term = Some(winapi_impl);
}
}
if does_support {
term = Some(unix_impl);
}
term
}
pub fn write(stdout: &Option<&Arc<TerminalOutput>>, string: String) -> io::Result<usize> {
match stdout {
None => {
print!("{}", string.as_str());
match io::stdout().flush() {
Ok(_) => Ok(string.len()),
Err(e) => Err(e),
}
}
Some(output) => output.write_string(string),
}
}
pub fn write_str(stdout: &Option<&Arc<TerminalOutput>>, string: &str) -> io::Result<usize> {
match stdout {
None => match io::stdout().flush() {
Ok(_) => { write!(io::stdout(), "{}", string)?; Ok(string.len()) },
Err(e) => Err(e),
},
Some(output) => output.write_str(string),
}
}