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use serde_derive::Deserialize;
use std::collections::hash_map;
use std::collections::HashMap;
use std::process::exit;
use crate::commands;
use crate::config::{parse_config_file, Flattenable};
use crate::KEYMAP_FILE;
pub const BACKSPACE: i32 = 0x7F;
pub const TAB: i32 = 0x9;
pub const ENTER: i32 = 0xA;
pub const ESCAPE: i32 = 0x1B;
/* #define KEY_ALT(x) KEY_F(60) + (x - 'A') */
#[derive(Debug, Deserialize)]
struct JoshutoMapCommand {
pub keys: Vec<String>,
pub command: String,
pub args: Option<Vec<String>>,
}
#[derive(Debug, Deserialize)]
struct JoshutoRawKeymap {
mapcommand: Option<Vec<JoshutoMapCommand>>,
}
impl Flattenable<JoshutoKeymap> for JoshutoRawKeymap {
fn flatten(self) -> JoshutoKeymap {
let mut keymaps: HashMap<i32, commands::CommandKeybind> = HashMap::new();
if let Some(maps) = self.mapcommand {
for mapcommand in maps {
match commands::from_args(mapcommand.command.as_str(), mapcommand.args.as_ref()) {
Some(command) => {
insert_keycommand(&mut keymaps, command, &mapcommand.keys[..]);
}
None => {
eprintln!("Unknown command: {}", mapcommand.command);
}
}
}
}
JoshutoKeymap { keymaps }
}
}
#[derive(Debug)]
pub struct JoshutoKeymap {
pub keymaps: HashMap<i32, commands::CommandKeybind>,
}
impl JoshutoKeymap {
pub fn new() -> Self {
let keymaps = HashMap::new();
JoshutoKeymap { keymaps }
}
pub fn get_config() -> JoshutoKeymap {
parse_config_file::<JoshutoRawKeymap, JoshutoKeymap>(KEYMAP_FILE)
.unwrap_or_else(JoshutoKeymap::new)
}
}
fn insert_keycommand(
map: &mut HashMap<i32, commands::CommandKeybind>,
keycommand: Box<commands::JoshutoCommand>,
keys: &[String],
) {
if keys.len() == 1 {
if let Some(s) = key_to_i32(&keys[0]) {
match map.entry(s) {
hash_map::Entry::Occupied(_) => {
eprintln!("Error: Keybindings ambiguous");
exit(1);
}
hash_map::Entry::Vacant(entry) => {
entry.insert(commands::CommandKeybind::SimpleKeybind(keycommand));
}
}
} else {
eprintln!("Error: Failed to parse keycode: {}", keys[0]);
}
} else if let Some(s) = key_to_i32(&keys[0]) {
let mut new_map: HashMap<i32, commands::CommandKeybind>;
match map.remove(&s) {
Some(commands::CommandKeybind::CompositeKeybind(m)) => {
new_map = m;
}
Some(_) => {
eprintln!("Error: Keybindings ambiguous");
exit(1);
}
None => {
new_map = HashMap::new();
}
}
insert_keycommand(&mut new_map, keycommand, &keys[1..]);
let composite_command = commands::CommandKeybind::CompositeKeybind(new_map);
map.insert(s, composite_command);
}
}
pub fn key_to_i32(keycode: &str) -> Option<i32> {
if keycode.len() == 1 {
for ch in keycode.chars() {
if ch.is_ascii() {
return Some(ch as i32);
}
}
None
} else {
match keycode {
"Tab" => Some(TAB),
"ShiftTab" => Some(ncurses::KEY_BTAB),
"Space" => Some(' ' as i32),
"Backspace" => Some(BACKSPACE),
"Delete" => Some(ncurses::KEY_DC),
"Enter" => Some(ENTER),
"Escape" => Some(ESCAPE),
"F0" => Some(ncurses::KEY_F0),
"F1" => Some(ncurses::KEY_F1),
"F2" => Some(ncurses::KEY_F2),
"F3" => Some(ncurses::KEY_F3),
"F4" => Some(ncurses::KEY_F4),
"F5" => Some(ncurses::KEY_F5),
"F6" => Some(ncurses::KEY_F6),
"F7" => Some(ncurses::KEY_F7),
"F8" => Some(ncurses::KEY_F8),
"F9" => Some(ncurses::KEY_F9),
"F10" => Some(ncurses::KEY_F10),
"F11" => Some(ncurses::KEY_F11),
"F12" => Some(ncurses::KEY_F12),
"F13" => Some(ncurses::KEY_F13),
"F14" => Some(ncurses::KEY_F14),
"F15" => Some(ncurses::KEY_F15),
"Insert" => Some(ncurses::KEY_IC), /* insert-character key */
"PageUp" => Some(ncurses::KEY_PPAGE), /* next-page key */
"PageDown" => Some(ncurses::KEY_NPAGE), /* previous-page key */
"PrintScreen" => Some(ncurses::KEY_PRINT), /* print key */
"Up" => Some(ncurses::KEY_UP),
"Down" => Some(ncurses::KEY_DOWN),
"Left" => Some(ncurses::KEY_LEFT),
"Right" => Some(ncurses::KEY_RIGHT),
"Home" => Some(ncurses::KEY_HOME),
"End" => Some(ncurses::KEY_END),
_ => None,
}
}
}
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