Initial rewrite commit
This commit is contained in:
commit
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12 changed files with 1417 additions and 0 deletions
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source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "8a18201040b24831fbb9e4eb208f8892e1f50a37feb53cc7ff887feb8f50e7cd"
|
||||
dependencies = [
|
||||
"windows_aarch64_gnullvm 0.52.0",
|
||||
"windows_aarch64_msvc 0.52.0",
|
||||
"windows_i686_gnu 0.52.0",
|
||||
"windows_i686_msvc 0.52.0",
|
||||
"windows_x86_64_gnu 0.52.0",
|
||||
"windows_x86_64_gnullvm 0.52.0",
|
||||
"windows_x86_64_msvc 0.52.0",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "windows_aarch64_gnullvm"
|
||||
version = "0.48.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "2b38e32f0abccf9987a4e3079dfb67dcd799fb61361e53e2882c3cbaf0d905d8"
|
||||
|
||||
[[package]]
|
||||
name = "windows_aarch64_gnullvm"
|
||||
version = "0.52.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "cb7764e35d4db8a7921e09562a0304bf2f93e0a51bfccee0bd0bb0b666b015ea"
|
||||
|
||||
[[package]]
|
||||
name = "windows_aarch64_msvc"
|
||||
version = "0.48.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "dc35310971f3b2dbbf3f0690a219f40e2d9afcf64f9ab7cc1be722937c26b4bc"
|
||||
|
||||
[[package]]
|
||||
name = "windows_aarch64_msvc"
|
||||
version = "0.52.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "bbaa0368d4f1d2aaefc55b6fcfee13f41544ddf36801e793edbbfd7d7df075ef"
|
||||
|
||||
[[package]]
|
||||
name = "windows_i686_gnu"
|
||||
version = "0.48.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "a75915e7def60c94dcef72200b9a8e58e5091744960da64ec734a6c6e9b3743e"
|
||||
|
||||
[[package]]
|
||||
name = "windows_i686_gnu"
|
||||
version = "0.52.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "a28637cb1fa3560a16915793afb20081aba2c92ee8af57b4d5f28e4b3e7df313"
|
||||
|
||||
[[package]]
|
||||
name = "windows_i686_msvc"
|
||||
version = "0.48.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "8f55c233f70c4b27f66c523580f78f1004e8b5a8b659e05a4eb49d4166cca406"
|
||||
|
||||
[[package]]
|
||||
name = "windows_i686_msvc"
|
||||
version = "0.52.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "ffe5e8e31046ce6230cc7215707b816e339ff4d4d67c65dffa206fd0f7aa7b9a"
|
||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_gnu"
|
||||
version = "0.48.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "53d40abd2583d23e4718fddf1ebec84dbff8381c07cae67ff7768bbf19c6718e"
|
||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_gnu"
|
||||
version = "0.52.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "3d6fa32db2bc4a2f5abeacf2b69f7992cd09dca97498da74a151a3132c26befd"
|
||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_gnullvm"
|
||||
version = "0.48.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "0b7b52767868a23d5bab768e390dc5f5c55825b6d30b86c844ff2dc7414044cc"
|
||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_gnullvm"
|
||||
version = "0.52.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "1a657e1e9d3f514745a572a6846d3c7aa7dbe1658c056ed9c3344c4109a6949e"
|
||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_msvc"
|
||||
version = "0.48.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "ed94fce61571a4006852b7389a063ab983c02eb1bb37b47f8272ce92d06d9538"
|
||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_msvc"
|
||||
version = "0.52.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "dff9641d1cd4be8d1a070daf9e3773c5f67e78b4d9d42263020c057706765c04"
|
||||
|
||||
[[package]]
|
||||
name = "zte2"
|
||||
version = "0.2.0"
|
||||
dependencies = [
|
||||
"clap",
|
||||
"crossterm",
|
||||
"slotmap",
|
||||
"thiserror",
|
||||
]
|
||||
13
Cargo.toml
Normal file
13
Cargo.toml
Normal file
|
|
@ -0,0 +1,13 @@
|
|||
[package]
|
||||
name = "zte2"
|
||||
version = "0.2.0"
|
||||
edition = "2021"
|
||||
|
||||
[dependencies]
|
||||
clap = { version = "4.4", features = ["derive"] }
|
||||
slotmap = "1.0"
|
||||
crossterm = "0.27"
|
||||
thiserror = "1.0"
|
||||
|
||||
[profile.dev]
|
||||
opt-level = 2
|
||||
114
src/action.rs
Normal file
114
src/action.rs
Normal file
|
|
@ -0,0 +1,114 @@
|
|||
use crate::{
|
||||
state::State,
|
||||
terminal::TerminalEvent,
|
||||
};
|
||||
use crossterm::event::{KeyEvent, KeyCode, KeyEventKind, KeyModifiers};
|
||||
|
||||
#[derive(Clone, Debug)]
|
||||
pub enum Dir {
|
||||
Left,
|
||||
Right,
|
||||
Up,
|
||||
Down,
|
||||
}
|
||||
|
||||
#[derive(Clone, Debug)]
|
||||
pub enum Action {
|
||||
Char(char), // Insert a character
|
||||
Backspace, // Backspace a character
|
||||
Move(Dir), // Move the cursor
|
||||
Cancel, // Cancels the current context
|
||||
Go, // Search, accept, or select the current option
|
||||
Quit, // Quit the application
|
||||
OpenPrompt, // Open the command prompt
|
||||
Show(String), // Display some arbitrary text to the user
|
||||
}
|
||||
|
||||
pub enum Event {
|
||||
// The incoming event is an action generated by some other internal component.
|
||||
Action(Action),
|
||||
// The incoming event is a raw user input.
|
||||
Raw(RawEvent),
|
||||
}
|
||||
|
||||
impl Event {
|
||||
pub fn from_raw(e: TerminalEvent) -> Self {
|
||||
Self::Raw(RawEvent(e))
|
||||
}
|
||||
|
||||
/// Turn the event into an action (if possible).
|
||||
///
|
||||
/// The translation function allows elements to translate raw events into their own context-specific actions.
|
||||
pub fn to_action(&self, translate: impl FnOnce(&RawEvent) -> Option<Action>) -> Option<Action> {
|
||||
match self {
|
||||
Self::Action(a) => Some(a.clone()),
|
||||
Self::Raw(te) => translate(te),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
pub struct RawEvent(TerminalEvent);
|
||||
|
||||
impl RawEvent {
|
||||
pub fn to_char(&self) -> Option<char> {
|
||||
match &self.0 {
|
||||
TerminalEvent::Key(KeyEvent {
|
||||
code,
|
||||
modifiers: KeyModifiers::NONE,
|
||||
kind: KeyEventKind::Press | KeyEventKind::Repeat,
|
||||
..
|
||||
}) => match code {
|
||||
KeyCode::Char(c) => Some(*c),
|
||||
KeyCode::Backspace => Some('\x08'),
|
||||
KeyCode::Enter => Some('\n'),
|
||||
_ => None,
|
||||
},
|
||||
_ => None,
|
||||
}
|
||||
}
|
||||
|
||||
pub fn to_move(&self) -> Option<Dir> {
|
||||
match &self.0 {
|
||||
TerminalEvent::Key(KeyEvent {
|
||||
code,
|
||||
modifiers: KeyModifiers::NONE,
|
||||
kind: KeyEventKind::Press | KeyEventKind::Repeat,
|
||||
..
|
||||
}) => match code {
|
||||
KeyCode::Left => Some(Dir::Left),
|
||||
KeyCode::Right => Some(Dir::Right),
|
||||
KeyCode::Up => Some(Dir::Up),
|
||||
KeyCode::Down => Some(Dir::Down),
|
||||
_ => None,
|
||||
},
|
||||
_ => None,
|
||||
}
|
||||
}
|
||||
|
||||
pub fn is_go(&self) -> bool {
|
||||
matches!(&self.0, TerminalEvent::Key(KeyEvent {
|
||||
code: KeyCode::Enter,
|
||||
modifiers: KeyModifiers::NONE,
|
||||
kind: KeyEventKind::Press,
|
||||
..
|
||||
}))
|
||||
}
|
||||
|
||||
pub fn is_prompt(&self) -> bool {
|
||||
matches!(&self.0, TerminalEvent::Key(KeyEvent {
|
||||
code: KeyCode::Enter,
|
||||
modifiers: KeyModifiers::ALT,
|
||||
kind: KeyEventKind::Press,
|
||||
..
|
||||
}))
|
||||
}
|
||||
|
||||
pub fn is_cancel(&self) -> bool {
|
||||
matches!(&self.0, TerminalEvent::Key(KeyEvent {
|
||||
code: KeyCode::Esc,
|
||||
modifiers: KeyModifiers::NONE,
|
||||
kind: KeyEventKind::Press,
|
||||
..
|
||||
}))
|
||||
}
|
||||
}
|
||||
58
src/main.rs
Normal file
58
src/main.rs
Normal file
|
|
@ -0,0 +1,58 @@
|
|||
mod action;
|
||||
mod ui;
|
||||
mod terminal;
|
||||
mod state;
|
||||
|
||||
use crate::{
|
||||
terminal::{Terminal, TerminalEvent, Color},
|
||||
action::{Event, Action, Dir},
|
||||
state::State,
|
||||
ui::{Element as _, Visual as _},
|
||||
};
|
||||
use clap::Parser;
|
||||
use std::{
|
||||
path::PathBuf,
|
||||
time::Duration,
|
||||
io,
|
||||
};
|
||||
|
||||
#[derive(Parser, Debug)]
|
||||
struct Args {
|
||||
paths: Vec<PathBuf>,
|
||||
}
|
||||
|
||||
#[derive(Debug, thiserror::Error)]
|
||||
pub enum Error {
|
||||
#[error("io: {0}")]
|
||||
Io(#[from] io::Error),
|
||||
}
|
||||
|
||||
fn main() -> Result<(), Error> {
|
||||
let args = Args::parse();
|
||||
println!("{args:?}");
|
||||
|
||||
let mut state = State::try_from(args)?;
|
||||
let mut ui = ui::Root::new(&state);
|
||||
|
||||
Terminal::with(move |term| {
|
||||
loop {
|
||||
// Render the state to the screen
|
||||
term.update(|fb| ui.render(&state, fb));
|
||||
|
||||
// Wait for a while
|
||||
term.wait_at_least(Duration::from_millis(250));
|
||||
state.tick();
|
||||
|
||||
while let Some(ev) = term.get_event() {
|
||||
// Resize events are special and need handling by the terminal
|
||||
if let TerminalEvent::Resize(cols, rows) = ev { term.set_size([cols, rows]); }
|
||||
|
||||
// Have the UI handle events
|
||||
if ui
|
||||
.handle(Event::from_raw(ev))
|
||||
.map_or(false, |r| r.should_end())
|
||||
{ return Ok(()); }
|
||||
}
|
||||
}
|
||||
})
|
||||
}
|
||||
79
src/state.rs
Normal file
79
src/state.rs
Normal file
|
|
@ -0,0 +1,79 @@
|
|||
use crate::{
|
||||
ui::{self, Resp, Element as _},
|
||||
Action, Event, Args, Error, Color,
|
||||
};
|
||||
use crossterm::event::{KeyCode, KeyModifiers, KeyEvent, KeyEventKind};
|
||||
use slotmap::{HopSlotMap, new_key_type};
|
||||
use std::collections::HashMap;
|
||||
|
||||
new_key_type! {
|
||||
// Per-activity
|
||||
pub struct ViewId;
|
||||
pub struct ActivityId;
|
||||
}
|
||||
|
||||
pub struct Cursor {
|
||||
base: (usize, usize),
|
||||
pos: (usize, usize),
|
||||
}
|
||||
|
||||
pub struct FileView {
|
||||
line: usize,
|
||||
cursor: Cursor,
|
||||
// For searches
|
||||
// view_cursor: Option<Cursor>,
|
||||
}
|
||||
|
||||
pub struct File {
|
||||
views: HopSlotMap<ViewId, FileView>,
|
||||
}
|
||||
|
||||
pub struct ConsoleView {
|
||||
line: usize,
|
||||
}
|
||||
|
||||
pub struct Console {
|
||||
views: HopSlotMap<ViewId, ConsoleView>,
|
||||
}
|
||||
|
||||
pub enum Activity {
|
||||
File(File),
|
||||
Console(Console),
|
||||
}
|
||||
|
||||
pub struct Theme {
|
||||
pub ui_bg: Color,
|
||||
pub status_bg: Color,
|
||||
}
|
||||
|
||||
impl Default for Theme {
|
||||
fn default() -> Self {
|
||||
Self {
|
||||
ui_bg: Color::AnsiValue(235),
|
||||
status_bg: Color::AnsiValue(23),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
pub struct State {
|
||||
pub activities: HopSlotMap<ActivityId, Activity>,
|
||||
pub tick: u64,
|
||||
pub theme: Theme,
|
||||
}
|
||||
|
||||
impl TryFrom<Args> for State {
|
||||
type Error = Error;
|
||||
fn try_from(args: Args) -> Result<Self, Self::Error> {
|
||||
Ok(Self {
|
||||
activities: HopSlotMap::default(),
|
||||
tick: 0,
|
||||
theme: Theme::default(),
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
impl State {
|
||||
pub fn tick(&mut self) {
|
||||
self.tick += 1;
|
||||
}
|
||||
}
|
||||
265
src/terminal.rs
Normal file
265
src/terminal.rs
Normal file
|
|
@ -0,0 +1,265 @@
|
|||
use super::Error;
|
||||
|
||||
pub use crossterm::{
|
||||
cursor::SetCursorStyle as CursorStyle,
|
||||
event::Event as TerminalEvent,
|
||||
style::Color,
|
||||
};
|
||||
|
||||
use std::{
|
||||
io::{self, StdoutLock, Write as _},
|
||||
panic,
|
||||
time::Duration,
|
||||
borrow::Borrow,
|
||||
};
|
||||
use crossterm::{
|
||||
event,
|
||||
style,
|
||||
cursor,
|
||||
terminal,
|
||||
ExecutableCommand,
|
||||
QueueableCommand,
|
||||
SynchronizedUpdate,
|
||||
};
|
||||
|
||||
#[derive(Copy, Clone, PartialEq)]
|
||||
struct Cell {
|
||||
c: char,
|
||||
fg: Color,
|
||||
bg: Color,
|
||||
}
|
||||
|
||||
impl Default for Cell {
|
||||
fn default() -> Self {
|
||||
Self {
|
||||
c: ' ',
|
||||
fg: Color::Reset,
|
||||
bg: Color::Reset,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
pub struct Rect<'a> {
|
||||
fg: Color,
|
||||
bg: Color,
|
||||
origin: [u16; 2],
|
||||
size: [u16; 2],
|
||||
fb: &'a mut Framebuffer,
|
||||
}
|
||||
|
||||
impl<'a> Rect<'a> {
|
||||
fn get_mut(&mut self, pos: [usize; 2]) -> Option<&mut Cell> {
|
||||
if pos[0] < self.size()[0] && pos[1] < self.size()[1] {
|
||||
let offs = [self.origin[0] as usize + pos[0], self.origin[1] as usize + pos[1]];
|
||||
Some(&mut self.fb.cells[offs[1] * self.fb.size[0] as usize + offs[0]])
|
||||
} else {
|
||||
None
|
||||
}
|
||||
}
|
||||
|
||||
pub fn with<R>(&mut self, f: impl FnOnce(&mut Rect) -> R) -> R { f(self) }
|
||||
|
||||
pub fn rect(&mut self, origin: [usize; 2], size: [usize; 2]) -> Rect {
|
||||
Rect {
|
||||
origin: [self.origin[0] + origin[0] as u16, self.origin[1] + origin[1] as u16],
|
||||
size: [
|
||||
size[0].min((self.size[0] as usize).saturating_sub(origin[0])) as u16,
|
||||
size[1].min((self.size[1] as usize).saturating_sub(origin[1])) as u16,
|
||||
],
|
||||
fg: self.fg,
|
||||
bg: self.bg,
|
||||
fb: self.fb,
|
||||
}
|
||||
}
|
||||
|
||||
pub fn with_fg(&mut self, fg: Color) -> Rect {
|
||||
Rect { fg, bg: self.bg, origin: self.origin, size: self.size, fb: self.fb }
|
||||
}
|
||||
|
||||
pub fn with_bg(&mut self, bg: Color) -> Rect {
|
||||
Rect { fg: self.fg, bg, origin: self.origin, size: self.size, fb: self.fb }
|
||||
}
|
||||
|
||||
pub fn size(&self) -> [usize; 2] { self.size.map(|e| e as usize) }
|
||||
|
||||
pub fn fill(&mut self, c: char) -> &mut Self {
|
||||
for row in 0..self.size()[1] {
|
||||
for col in 0..self.size()[0] {
|
||||
let cell = Cell { c, fg: self.fg, bg: self.bg };
|
||||
if let Some(c) = self.get_mut([col, row]) { *c = cell; }
|
||||
}
|
||||
}
|
||||
self
|
||||
}
|
||||
|
||||
pub fn text<C: Borrow<char>>(&mut self, origin: [usize; 2], text: impl IntoIterator<Item = C>) -> &mut Self {
|
||||
for (idx, c) in text.into_iter().enumerate() {
|
||||
if origin[0] + idx >= self.size()[0] {
|
||||
break;
|
||||
} else {
|
||||
let cell = Cell { c: *c.borrow(), fg: self.fg, bg: self.bg };
|
||||
if let Some(c) = self.get_mut([origin[0] + idx, origin[1]]) { *c = cell; }
|
||||
}
|
||||
}
|
||||
self
|
||||
}
|
||||
|
||||
pub fn set_cursor(&mut self, cursor: [usize; 2], style: CursorStyle) -> &mut Self {
|
||||
self.fb.cursor = Some((
|
||||
[self.origin[0] + cursor[0] as u16, self.origin[1] + cursor[1] as u16],
|
||||
style,
|
||||
));
|
||||
self
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Default)]
|
||||
pub struct Framebuffer {
|
||||
size: [u16; 2],
|
||||
cells: Vec<Cell>,
|
||||
cursor: Option<([u16; 2], CursorStyle)>,
|
||||
}
|
||||
|
||||
impl Framebuffer {
|
||||
pub fn rect(&mut self) -> Rect {
|
||||
Rect {
|
||||
fg: Color::Reset,
|
||||
bg: Color::Reset,
|
||||
origin: [0, 0],
|
||||
size: self.size,
|
||||
fb: self,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
pub struct Terminal<'a> {
|
||||
stdout: StdoutLock<'a>,
|
||||
size: [u16; 2],
|
||||
fb: [Framebuffer; 2],
|
||||
}
|
||||
|
||||
impl<'a> Terminal<'a> {
|
||||
fn enter(mut stdout: impl io::Write) {
|
||||
let _ = terminal::enable_raw_mode();
|
||||
let _ = stdout.execute(terminal::EnterAlternateScreen);
|
||||
}
|
||||
|
||||
fn leave(mut stdout: impl io::Write) {
|
||||
let _ = terminal::disable_raw_mode();
|
||||
let _ = stdout.execute(terminal::LeaveAlternateScreen);
|
||||
let _ = stdout.execute(cursor::Show);
|
||||
}
|
||||
|
||||
pub fn with<T>(f: impl FnOnce(&mut Self) -> Result<T, Error> + panic::UnwindSafe) -> Result<T, Error> {
|
||||
let size = terminal::window_size()?;
|
||||
|
||||
Self::enter(io::stdout().lock());
|
||||
|
||||
let mut this = Self {
|
||||
stdout: io::stdout().lock(),
|
||||
size: [size.columns, size.rows],
|
||||
fb: [Framebuffer::default(), Framebuffer::default()],
|
||||
};
|
||||
|
||||
let hook = panic::take_hook();
|
||||
panic::set_hook(Box::new(move |panic| { Self::leave(io::stdout().lock()); hook(panic); }));
|
||||
let res = f(&mut this);
|
||||
|
||||
Self::leave(io::stdout().lock());
|
||||
|
||||
res
|
||||
}
|
||||
|
||||
pub fn set_size(&mut self, size: [u16; 2]) {
|
||||
self.size = size;
|
||||
}
|
||||
|
||||
pub fn update(&mut self, render: impl FnOnce(&mut Rect)) {
|
||||
// Reset framebuffer
|
||||
if self.fb[0].size != self.size {
|
||||
self.fb[0].size = self.size;
|
||||
self.fb[0].cells.resize(self.size[0] as usize * self.size[1] as usize, Cell::default());
|
||||
}
|
||||
self.fb[0].cursor = None;
|
||||
|
||||
render(&mut self.fb[0].rect());
|
||||
|
||||
self.stdout.sync_update(|stdout| {
|
||||
let mut cursor_pos = [0, 0];
|
||||
let mut fg = Color::Reset;
|
||||
let mut bg = Color::Reset;
|
||||
stdout
|
||||
.queue(cursor::MoveTo(cursor_pos[0], cursor_pos[1])).unwrap()
|
||||
.queue(style::SetForegroundColor(fg)).unwrap()
|
||||
.queue(style::SetBackgroundColor(bg)).unwrap()
|
||||
.queue(cursor::Hide).unwrap();
|
||||
|
||||
// Write out changes
|
||||
for row in 0..self.size[1] {
|
||||
for col in 0..self.size[0] {
|
||||
let pos = row as usize * self.size[0] as usize + col as usize;
|
||||
let cell = self.fb[0].cells[pos];
|
||||
|
||||
let changed = self.fb[0].size != self.fb[1].size
|
||||
|| cell != self.fb[1].cells[pos];
|
||||
|
||||
if changed {
|
||||
if cursor_pos != [col, row] {
|
||||
// Minimise the work done to move the cursor around
|
||||
if cursor_pos[1] == row {
|
||||
stdout.queue(cursor::MoveToColumn(col)).unwrap();
|
||||
} else if cursor_pos[0] == col {
|
||||
stdout.queue(cursor::MoveToRow(row)).unwrap();
|
||||
} else {
|
||||
stdout.queue(cursor::MoveTo(col, row)).unwrap();
|
||||
}
|
||||
cursor_pos = [col, row];
|
||||
}
|
||||
if fg != cell.fg {
|
||||
fg = cell.fg;
|
||||
stdout.queue(style::SetForegroundColor(fg)).unwrap();
|
||||
}
|
||||
if bg != cell.bg {
|
||||
bg = cell.bg;
|
||||
stdout.queue(style::SetBackgroundColor(bg)).unwrap();
|
||||
}
|
||||
|
||||
stdout.queue(style::Print(self.fb[0].cells[pos].c)).unwrap();
|
||||
|
||||
// Move cursor
|
||||
cursor_pos[0] += 1;
|
||||
if cursor_pos[0] >= self.size[0] { cursor_pos = [0, cursor_pos[1] + 1]; }
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if let Some(([col, row], style)) = self.fb[0].cursor {
|
||||
stdout
|
||||
.queue(cursor::MoveTo(col, row)).unwrap()
|
||||
.queue(style).unwrap()
|
||||
.queue(cursor::Show).unwrap();
|
||||
} else {
|
||||
stdout.queue(cursor::Hide).unwrap();
|
||||
}
|
||||
}).unwrap();
|
||||
|
||||
self.stdout.flush().unwrap();
|
||||
|
||||
// Switch front and back buffers
|
||||
self.fb.swap(0, 1);
|
||||
}
|
||||
|
||||
// Get the next pending event, if one is available.
|
||||
pub fn get_event(&mut self) -> Option<TerminalEvent> {
|
||||
if event::poll(Duration::ZERO).ok()? {
|
||||
event::read().ok()
|
||||
} else {
|
||||
None
|
||||
}
|
||||
}
|
||||
|
||||
// Wait for the given duration or until an event arrives.
|
||||
pub fn wait_at_least(&mut self, dur: Duration) {
|
||||
event::poll(dur).unwrap();
|
||||
}
|
||||
}
|
||||
58
src/ui/input.rs
Normal file
58
src/ui/input.rs
Normal file
|
|
@ -0,0 +1,58 @@
|
|||
use super::*;
|
||||
use crate::terminal::CursorStyle;
|
||||
|
||||
#[derive(Default)]
|
||||
pub struct Input {
|
||||
pub text: Vec<char>,
|
||||
pub cursor: usize,
|
||||
pub preamble: &'static str,
|
||||
}
|
||||
|
||||
impl Input {
|
||||
pub fn get_text(&self) -> String {
|
||||
self.text.iter().copied().collect()
|
||||
}
|
||||
}
|
||||
|
||||
impl Element for Input {
|
||||
fn handle(&mut self, event: Event) -> Result<Resp, Event> {
|
||||
match event.to_action(|e| e.to_char().map(Action::Char)
|
||||
.or_else(|| e.to_move().map(Action::Move))) {
|
||||
Some(Action::Char('\x08')) => {
|
||||
self.cursor = self.cursor.saturating_sub(1);
|
||||
if self.text.len() > self.cursor {
|
||||
self.text.remove(self.cursor);
|
||||
}
|
||||
Ok(Resp::handled(None))
|
||||
},
|
||||
Some(Action::Char(c)) => {
|
||||
self.text.insert(self.cursor, c);
|
||||
self.cursor += 1;
|
||||
Ok(Resp::handled(None))
|
||||
},
|
||||
Some(Action::Move(Dir::Left)) => {
|
||||
self.cursor = self.cursor.saturating_sub(1);
|
||||
Ok(Resp::handled(None))
|
||||
},
|
||||
Some(Action::Move(Dir::Right)) => {
|
||||
self.cursor = (self.cursor + 1).min(self.text.len());
|
||||
Ok(Resp::handled(None))
|
||||
},
|
||||
_ => Err(event),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl Visual for Input {
|
||||
fn render(&self, state: &State, frame: &mut Rect) {
|
||||
frame.with(|frame| {
|
||||
frame.fill(' ');
|
||||
frame.text([0, 0], self.preamble.chars());
|
||||
|
||||
frame.rect([self.preamble.chars().count(), 0], frame.size()).with(|frame| {
|
||||
frame.text([0, 0], &self.text);
|
||||
frame.set_cursor([self.cursor, 0], CursorStyle::BlinkingBar);
|
||||
});
|
||||
});
|
||||
}
|
||||
}
|
||||
85
src/ui/mod.rs
Normal file
85
src/ui/mod.rs
Normal file
|
|
@ -0,0 +1,85 @@
|
|||
mod prompt;
|
||||
mod root;
|
||||
mod panes;
|
||||
mod status;
|
||||
mod input;
|
||||
|
||||
pub use self::{
|
||||
prompt::{Prompt, Confirm, Show},
|
||||
panes::Panes,
|
||||
status::Status,
|
||||
root::Root,
|
||||
input::Input,
|
||||
};
|
||||
|
||||
use crate::{
|
||||
terminal::{Rect, Color},
|
||||
State, Action, Event, Dir,
|
||||
};
|
||||
|
||||
pub enum CannotEnd {}
|
||||
pub struct CanEnd;
|
||||
|
||||
pub struct Resp<CanEnd = CannotEnd> {
|
||||
should_end: Option<CanEnd>,
|
||||
pub action: Option<Action>,
|
||||
}
|
||||
|
||||
impl Resp<CanEnd> {
|
||||
pub fn end(action: impl Into<Option<Action>>) -> Self {
|
||||
Self {
|
||||
should_end: Some(CanEnd),
|
||||
action: action.into(),
|
||||
}
|
||||
}
|
||||
|
||||
pub fn should_end(&self) -> bool { self.should_end.is_some() }
|
||||
}
|
||||
|
||||
impl<T> Resp<T> {
|
||||
pub fn handled(action: impl Into<Option<Action>>) -> Self {
|
||||
Self {
|
||||
should_end: None,
|
||||
action: action.into(),
|
||||
}
|
||||
}
|
||||
|
||||
pub fn into_can_end(self) -> Resp<CanEnd> {
|
||||
Resp {
|
||||
should_end: None,
|
||||
action: self.action,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
pub trait Element<CanEnd = CannotEnd> {
|
||||
/// Attempt to handle an event.
|
||||
///
|
||||
/// If handled, convert into a series of secondary actions.
|
||||
/// If unhandled, return the original event to be handled by a lower element.
|
||||
fn handle(&mut self, event: Event) -> Result<Resp<CanEnd>, Event>;
|
||||
}
|
||||
|
||||
pub trait Visual {
|
||||
fn render(&self, state: &State, frame: &mut Rect);
|
||||
}
|
||||
|
||||
pub struct Label(String);
|
||||
|
||||
impl std::ops::Deref for Label {
|
||||
type Target = String;
|
||||
fn deref(&self) -> &Self::Target { &self.0 }
|
||||
}
|
||||
|
||||
impl Visual for Label {
|
||||
fn render(&self, state: &State, frame: &mut Rect) {
|
||||
frame
|
||||
.with_bg(state.theme.ui_bg)
|
||||
.fill(' ')
|
||||
.with(|frame| {
|
||||
for (idx, line) in self.lines().enumerate() {
|
||||
frame.text([0, idx], line.chars());
|
||||
}
|
||||
});
|
||||
}
|
||||
}
|
||||
3
src/ui/panes.rs
Normal file
3
src/ui/panes.rs
Normal file
|
|
@ -0,0 +1,3 @@
|
|||
use super::*;
|
||||
|
||||
pub struct Panes;
|
||||
124
src/ui/prompt.rs
Normal file
124
src/ui/prompt.rs
Normal file
|
|
@ -0,0 +1,124 @@
|
|||
use super::*;
|
||||
use std::str::FromStr;
|
||||
|
||||
pub enum Command {
|
||||
Quit,
|
||||
Help,
|
||||
Version,
|
||||
}
|
||||
|
||||
impl FromStr for Command {
|
||||
type Err = ();
|
||||
fn from_str(s: &str) -> Result<Self, Self::Err> {
|
||||
match s {
|
||||
"q" | "quit" => Ok(Command::Quit),
|
||||
"version" => Ok(Command::Version),
|
||||
"?" | "help" => Ok(Command::Help),
|
||||
_ => Err(()),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
pub struct Prompt {
|
||||
pub input: Input,
|
||||
}
|
||||
|
||||
impl Prompt {
|
||||
pub fn get_action(&self) -> Option<Action> {
|
||||
match self.input.get_text().as_str() {
|
||||
"quit" => Some(Action::Quit),
|
||||
"version" => Some(Action::Show(format!("{} {}", env!("CARGO_PKG_NAME"), env!("CARGO_PKG_VERSION")))),
|
||||
"help" => Some(Action::Show(format!("Temporary help info:\n- quit\n- version\n- help"))),
|
||||
_ => None,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl Element<CanEnd> for Prompt {
|
||||
fn handle(&mut self, event: Event) -> Result<Resp<CanEnd>, Event> {
|
||||
match event.to_action(|e| if e.is_cancel() {
|
||||
Some(Action::Cancel)
|
||||
} else if e.is_go() {
|
||||
Some(Action::Go)
|
||||
} else if e.is_prompt() {
|
||||
Some(Action::OpenPrompt)
|
||||
} else {
|
||||
None
|
||||
}) {
|
||||
Some(Action::Cancel /*| Action::Prompt*/) => Ok(Resp::end(None)),
|
||||
Some(Action::Go) => if let Some(action) = self.get_action() {
|
||||
Ok(Resp::end(action))
|
||||
} else {
|
||||
Ok(Resp::end(Action::Show(format!("unknown command `{}`", self.input.get_text()))))
|
||||
},
|
||||
_ => self.input.handle(event).map(Resp::into_can_end),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl Visual for Prompt {
|
||||
fn render(&self, state: &State, frame: &mut Rect) {
|
||||
frame
|
||||
.rect([0, frame.size()[1].saturating_sub(1)], [frame.size()[0], 1])
|
||||
.with_bg(state.theme.status_bg)
|
||||
.with(|f| self.input.render(state, f));
|
||||
}
|
||||
}
|
||||
|
||||
pub struct Show {
|
||||
pub label: Label,
|
||||
}
|
||||
|
||||
impl Element<CanEnd> for Show {
|
||||
fn handle(&mut self, event: Event) -> Result<Resp<CanEnd>, Event> {
|
||||
match event.to_action(|e| if e.is_cancel() {
|
||||
Some(Action::Cancel)
|
||||
} else {
|
||||
None
|
||||
}) {
|
||||
Some(Action::Cancel) => Ok(Resp::end(None)),
|
||||
_ => Err(event),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl Visual for Show {
|
||||
fn render(&self, state: &State, frame: &mut Rect) {
|
||||
let lines = self.label.lines().count();
|
||||
self.label.render(
|
||||
state,
|
||||
&mut frame.rect([0, frame.size()[1].saturating_sub(1 + lines)], [frame.size()[0], lines]),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
pub struct Confirm {
|
||||
pub label: Label,
|
||||
pub action: Action,
|
||||
}
|
||||
|
||||
impl Element<CanEnd> for Confirm {
|
||||
fn handle(&mut self, event: Event) -> Result<Resp<CanEnd>, Event> {
|
||||
match event.to_action(|e| if e.is_cancel() || e.to_char() == Some('n') {
|
||||
Some(Action::Cancel)
|
||||
} else if e.to_char() == Some('y') {
|
||||
Some(Action::Go)
|
||||
} else {
|
||||
None
|
||||
}) {
|
||||
Some(Action::Go) => Ok(Resp::end(Some(self.action.clone()))),
|
||||
Some(Action::Cancel) => Ok(Resp::end(None)),
|
||||
_ => Err(event),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl Visual for Confirm {
|
||||
fn render(&self, state: &State, frame: &mut Rect) {
|
||||
let lines = self.label.lines().count();
|
||||
self.label.render(
|
||||
state,
|
||||
&mut frame.rect([0, frame.size()[1].saturating_sub(1 + lines)], [frame.size()[0], lines]),
|
||||
);
|
||||
}
|
||||
}
|
||||
103
src/ui/root.rs
Normal file
103
src/ui/root.rs
Normal file
|
|
@ -0,0 +1,103 @@
|
|||
use super::*;
|
||||
|
||||
pub struct Root {
|
||||
panes: Panes,
|
||||
status: Status,
|
||||
tasks: Vec<Task>,
|
||||
}
|
||||
|
||||
pub enum Task {
|
||||
Prompt(Prompt),
|
||||
Show(Show),
|
||||
Confirm(Confirm),
|
||||
}
|
||||
|
||||
impl Root {
|
||||
pub fn new(state: &State) -> Self {
|
||||
Self {
|
||||
panes: Panes,
|
||||
status: Status,
|
||||
tasks: Vec::new(),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl Element<CanEnd> for Root {
|
||||
fn handle(&mut self, mut event: Event) -> Result<Resp<CanEnd>, Event> {
|
||||
// Pass the event down through the list of tasks until we meet one that can handle it
|
||||
let mut task_idx = self.tasks.len();
|
||||
let action = loop {
|
||||
task_idx = match task_idx.checked_sub(1) {
|
||||
Some(task_idx) => task_idx,
|
||||
None => break event.to_action(|e| if e.is_prompt() {
|
||||
Some(Action::OpenPrompt)
|
||||
} else if e.is_cancel() {
|
||||
Some(Action::Cancel)
|
||||
} else {
|
||||
None
|
||||
}),
|
||||
};
|
||||
|
||||
let res = match &mut self.tasks[task_idx] {
|
||||
Task::Prompt(p) => p.handle(event),
|
||||
Task::Show(s) => s.handle(event),
|
||||
Task::Confirm(c) => c.handle(event),
|
||||
};
|
||||
|
||||
match res {
|
||||
Ok(resp) => {
|
||||
// If the task has requested that it should end, kill it and all of its children
|
||||
if resp.should_end() {
|
||||
self.tasks.truncate(task_idx);
|
||||
}
|
||||
break resp.action;
|
||||
}
|
||||
Err(e) => event = e,
|
||||
}
|
||||
};
|
||||
|
||||
// Handle 'top-level' actions
|
||||
if let Some(action) = action {
|
||||
match action {
|
||||
Action::OpenPrompt => {
|
||||
self.tasks.clear(); // Prompt overrides all
|
||||
self.tasks.push(Task::Prompt(Prompt {
|
||||
input: Input { preamble: "> ", ..Input::default() },
|
||||
}));
|
||||
},
|
||||
Action::Cancel => self.tasks.push(Task::Confirm(Confirm {
|
||||
label: Label("Are you sure you wish to quit? (y/n)".to_string()),
|
||||
action: Action::Quit,
|
||||
})),
|
||||
Action::Show(text) => self.tasks.push(Task::Show(Show { label: Label(text) })),
|
||||
Action::Quit => return Ok(Resp::end(None)),
|
||||
action => todo!("Unhandled action {action:?}"),
|
||||
}
|
||||
}
|
||||
|
||||
// Root element swallows all other events
|
||||
Ok(Resp::handled(None))
|
||||
}
|
||||
}
|
||||
|
||||
impl Visual for Root {
|
||||
fn render(&self, state: &State, frame: &mut Rect) {
|
||||
frame
|
||||
.with_bg(Color::Black)
|
||||
.fill(' ');
|
||||
|
||||
// Display status bar
|
||||
frame
|
||||
.rect([0, frame.size()[1].saturating_sub(1)], [frame.size()[0], 1])
|
||||
.with_bg(state.theme.status_bg)
|
||||
.fill(' ');
|
||||
|
||||
if let Some(task) = self.tasks.last() {
|
||||
match task {
|
||||
Task::Prompt(p) => p.render(state, frame),
|
||||
Task::Show(s) => s.render(state, frame),
|
||||
Task::Confirm(c) => c.render(state, frame),
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
3
src/ui/status.rs
Normal file
3
src/ui/status.rs
Normal file
|
|
@ -0,0 +1,3 @@
|
|||
use super::*;
|
||||
|
||||
pub struct Status;
|
||||
Loading…
Add table
Reference in a new issue