FastWave2.0/frontend/src/term.rs

140 lines
4.1 KiB
Rust

use std::ops::Index;
use chrono::format;
use zoon::*;
use zoon::{println, eprintln, *};
use shared::term::{TerminalDownMsg, TerminalScreen, TerminalUpMsg};
// use tokio::time::timeout;
pub static TERM_OPEN: Lazy<Mutable<bool>> = Lazy::new(|| {false.into()});
pub static TERMINAL_STATE: Lazy<Mutable<TerminalDownMsg>> =
Lazy::new(|| {
Mutable::new(TerminalDownMsg::TermNotStarted)
});
pub fn root() -> impl Element {
term_request();
let terminal =
El::new()
.s(Width::fill())
.s(Height::fill())
.s(Font::new().family([
FontFamily::new("Lucida Console"),
FontFamily::new("Courier"),
FontFamily::new("monospace")
]))
.update_raw_el(|raw_el| {
raw_el.global_event_handler(|event: events::KeyDown| {
send_char(
(&event).key().as_str(),
(&event).ctrl_key(),
);
})
})
.child_signal(TERMINAL_STATE.signal_cloned().map(
|down_msg| {
match down_msg {
TerminalDownMsg::FullTermUpdate(term) => {
make_grid_with_newlines(&term)
},
TerminalDownMsg::TermNotStarted => {
"Term not yet started!".to_string()
},
TerminalDownMsg::BackendTermStartFailure(msg) => {
format!("Error: BackendTermStartFailure: {}", msg)
}
}
}
)
)
;
let root = Column::new()
.s(Width::fill())
.s(Height::fill())
.s(Align::new().top())
.item(terminal);
root
}
// TODO : fill this out
fn term_request() {
}
fn send_char(
s : &str,
has_control : bool,
) {
match process_str(s, has_control) {
// TODO : fill this out
Some(c) => {
let send_c = c.clone();
Task::start(async move {
println!("Sending char: {}", &c);
crate::platform::send_char(send_c.to_string()).await;
println!("Sent char: {}", &c);
});
}
None => {eprintln!("Not processing: {}", s)}
}
}
fn make_grid_with_newlines(term : &TerminalScreen) -> String {
let mut formatted = String::new();
for (i, c) in term.content.chars().enumerate() {
formatted.push(c);
if ((i + 1) as u16) % term.cols == 0 {
formatted.push('\n');
}
}
formatted
}
fn process_str(s: &str, has_ctrl : bool) -> Option<char> {
match s {
"Enter" => {return Some('\n');}
"Escape" => {return Some('\x1B');}
"Backspace" => {return Some('\x08');}
"ArrowUp" => {return Some('\x10');}
"ArrowDown" => {return Some('\x0E');}
"ArrowLeft" => {return Some('\x02');}
"ArrowRight" => {return Some('\x06');}
_ => {}
}
// Check if the string has exactly one character
if s.chars().count() == 1 {
// Safe unwrap because we know the length is 1
let c = s.chars().next().unwrap();
let c = process_for_ctrl_char(c, has_ctrl);
return Some(c);
}
None
}
fn is_lowercase_alpha(c: char) -> bool {
char_is_between_inclusive(c, 'a', 'z')
}
fn process_for_ctrl_char(c: char, has_ctrl : bool) -> char {
let mut final_ctrl_char = c;
if has_ctrl {
if is_lowercase_alpha(c) {
let c_u8 = (c as u8);
let ctrl_char_u8 = c_u8 - 96;
final_ctrl_char = (ctrl_char_u8 as char);
} else if char_is_between_inclusive(c, '[', '_') {
let c_u8 = (c as u8);
let ctrl_char_u8 = c_u8 - 90;
final_ctrl_char = (ctrl_char_u8 as char);
}
}
return final_ctrl_char
}
fn char_is_between_inclusive(c : char, lo_char : char, hi_char : char) -> bool {
c >= lo_char && c <= hi_char
}