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use termion::event::Key;
use std::io::{stdout, Write};
use crate::coordinates::{Coordinates};
use crate::widget::Widget;
use crate::fail::{HResult, HError};
use crate::term;
pub struct MiniBuffer {
coordinates: Coordinates,
query: String,
input: String,
done: bool,
position: usize,
history: Vec<String>
}
impl MiniBuffer {
pub fn new() -> MiniBuffer {
let xsize = crate::term::xsize();
let ysize = crate::term::ysize();
let coordinates = Coordinates::new_at(xsize, 1, 1, ysize);
MiniBuffer {
coordinates: coordinates,
query: String::new(),
input: String::new(),
done: false,
position: 0,
history: vec![]
}
}
pub fn query(&mut self, query: &str) -> HResult<String> {
self.query = query.to_string();
self.input.clear();
self.done = false;
self.position = 0;
write!(stdout(), "{}", termion::cursor::Show)?;
self.popup()?;
// for event in stdin().events() {
// let event = event?;
// self.on_event(event);
// if self.done {
// break
// }
// self.draw()?;
// write!(stdout(), "{}", termion::cursor::Restore)?;
// if self.position != 0 {
// write!(stdout(),
// "{}",
// termion::cursor::Right(self.position as u16))?;
// }
// stdout().flush()?;
// }
Ok(self.input.clone())
}
pub fn input_finnished(&mut self) -> HResult<()> {
return Err(HError::PopupFinnished)
}
}
pub fn find_bins(comp_name: &str) -> Vec<String> {
let paths = std::env::var_os("PATH").unwrap()
.to_string_lossy()
.split(":")
.map(|s| s.to_string())
.collect::<Vec<String>>();
paths.iter().map(|path| {
std::fs::read_dir(path).unwrap().flat_map(|file| {
let file = file.unwrap();
let name = file.file_name().into_string().unwrap();
if name.starts_with(comp_name) {
Some(name)
} else {
None
}
}).collect::<Vec<String>>()
}).flatten().collect::<Vec<String>>()
}
pub fn find_files(mut comp_name: String) -> Vec<String> {
let mut path = std::path::PathBuf::from(&comp_name);
let dir = if comp_name.starts_with("/") {
comp_name = path.file_name().unwrap().to_string_lossy().to_string();
path.pop();
path.to_string_lossy().to_string()
} else {
std::env::current_dir().unwrap().to_string_lossy().to_string()
};
let reader = std::fs::read_dir(dir.clone());
if reader.is_err() { return vec![] }
let reader = reader.unwrap();
reader.flat_map(|file| {
let file = file.unwrap();
let name = file.file_name().into_string().unwrap();
if name.starts_with(&comp_name) {
if file.file_type().unwrap().is_dir() {
Some(format!("{}/{}/", &dir, name))
} else {
Some(format!("/{}/", name))
}
} else {
None
}
}).collect::<Vec<String>>()
}
impl Widget for MiniBuffer {
fn get_coordinates(&self) -> &Coordinates {
&self.coordinates
}
fn set_coordinates(&mut self, coordinates: &Coordinates) {
self.coordinates = coordinates.clone();
self.refresh();
}
fn render_header(&self) -> String {
"".to_string()
}
fn refresh(&mut self) {
}
fn get_drawlist(&self) -> String {
let (xpos, ypos) = self.get_coordinates().u16position();
format!("{}{}{}: {}",
crate::term::goto_xy(xpos, ypos),
termion::clear::CurrentLine,
self.query,
self.input)
}
fn on_key(&mut self, key: Key) -> HResult<()> {
match key {
Key::Esc | Key::Ctrl('c') => { self.input_finnished()?; },
Key::Char('\n') => {
if self.input != "" {
self.history.push(self.input.clone());
}
self.input_finnished()?;
}
Key::Char('\t') => {
if !self.input.ends_with(" ") {
let part = self.input.rsplitn(2, " ").take(1)
.map(|s| s.to_string()).collect::<String>();
let completions = find_files(part.clone());
if !completions.is_empty() {
self.input
= self.input[..self.input.len() - part.len()].to_string();
self.input.push_str(&completions[0]);
self.position += &completions[0].len() - part.len();
} else {
let completions = find_bins(&part);
if !completions.is_empty() {
self.input = self.input[..self.input.len()
- part.len()].to_string();
self.input.push_str(&completions[0]);
self.position += &completions[0].len() - part.len();
}
}
} else {
self.input += "$s";
self.position += 2
}
}
Key::Backspace => {
if self.position != 0 {
self.input.remove(self.position - 1);
self.position -= 1;
}
}
Key::Delete | Key::Ctrl('d') => {
if self.position != self.input.len() {
self.input.remove(self.position);
}
}
Key::Left | Key::Ctrl('b') => {
if self.position != 0 {
self.position -= 1;
}
}
Key::Right | Key::Ctrl('f') => {
if self.position != self.input.len() {
self.position += 1;
}
}
Key::Ctrl('a') => { self.position = 0 },
Key::Ctrl('e') => { self.position = self.input.len(); },
Key::Char(key) => {
self.input.insert(self.position, key);
self.position += 1;
}
_ => { }
}
Ok(())
}
fn after_draw(&self) -> HResult<()> {
let cursor_pos = self.query.len() +
": ".len() +
self.position +
1;
let ysize = term::ysize();
write!(stdout(), "{}", term::goto_xy(cursor_pos as u16, ysize))?;
stdout().flush()?;
Ok(())
}
}
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