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15 changed files with 591 additions and 533 deletions

View file

@ -2,3 +2,6 @@
extend-exclude = [
"CHANGELOG.md",
]
[default.extend-words]
"ratatui" = "ratatui"

185
Cargo.lock generated
View file

@ -14,6 +14,12 @@ dependencies = [
"zerocopy",
]
[[package]]
name = "allocator-api2"
version = "0.2.18"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "5c6cb57a04249c6480766f7f7cef5467412af1490f8d1e243141daddada3264f"
[[package]]
name = "anstream"
version = "0.6.15"
@ -87,6 +93,21 @@ version = "2.6.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "b048fb63fd8b5923fc5aa7b340d8e156aec7ec02f0c78fa8a6ddc2613f6f71de"
[[package]]
name = "cassowary"
version = "0.3.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "df8670b8c7b9dae1793364eafadf7239c40d669904660c5960d74cfd80b46a53"
[[package]]
name = "castaway"
version = "0.2.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0abae9be0aaf9ea96a3b1b8b1b55c602ca751eba1b1500220cea4ecbafe7c0d5"
dependencies = [
"rustversion",
]
[[package]]
name = "cfg-if"
version = "1.0.0"
@ -139,6 +160,20 @@ version = "1.0.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d3fd119d74b830634cea2a0f58bbd0d54540518a14397557951e79340abc28c0"
[[package]]
name = "compact_str"
version = "0.8.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6050c3a16ddab2e412160b31f2c871015704239bca62f72f6e5f0be631d3f644"
dependencies = [
"castaway",
"cfg-if",
"itoa",
"rustversion",
"ryu",
"static_assertions",
]
[[package]]
name = "crossbeam-channel"
version = "0.5.13"
@ -179,6 +214,12 @@ dependencies = [
"winapi",
]
[[package]]
name = "either"
version = "1.13.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "60b1af1c220855b6ceac025d3f6ecdd2b7c4894bfe9cd9bda4fbb4bc7c0d4cf0"
[[package]]
name = "equivalent"
version = "1.0.1"
@ -197,9 +238,9 @@ dependencies = [
[[package]]
name = "fastrand"
version = "2.1.1"
version = "2.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e8c02a5121d4ea3eb16a80748c74f5549a5665e4c21333c6098f283870fbdea6"
checksum = "9fc0510504f03c51ada170672ac806f1f105a88aa97a5281117e1ddc3368e51a"
[[package]]
name = "filetime"
@ -227,6 +268,10 @@ name = "hashbrown"
version = "0.14.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e5274423e17b7c9fc20b6e7e208532f9b19825d82dfd615708b70edd83df41f1"
dependencies = [
"ahash",
"allocator-api2",
]
[[package]]
name = "heck"
@ -270,12 +315,31 @@ dependencies = [
"libc",
]
[[package]]
name = "instability"
version = "0.3.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "b23a0c8dfe501baac4adf6ebbfa6eddf8f0c07f56b058cc1288017e32397846c"
dependencies = [
"quote",
"syn",
]
[[package]]
name = "is_terminal_polyfill"
version = "1.70.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7943c866cc5cd64cbc25b2e01621d07fa8eb2a1a23160ee81ce38704e97b8ecf"
[[package]]
name = "itertools"
version = "0.13.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "413ee7dfc52ee1a4949ceeb7dbc8a33f2d6c088194d9f922fb8318faf1f01186"
dependencies = [
"either",
]
[[package]]
name = "itoa"
version = "1.0.11"
@ -341,6 +405,15 @@ version = "0.4.22"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "a7a70ba024b9dc04c27ea2f0c0548feb474ec5c54bba33a7f72f873a39d07b24"
[[package]]
name = "lru"
version = "0.12.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "37ee39891760e7d94734f6f63fedc29a2e4a152f836120753a72503f09fcf904"
dependencies = [
"hashbrown",
]
[[package]]
name = "memchr"
version = "2.7.4"
@ -440,6 +513,12 @@ dependencies = [
"windows-targets 0.52.6",
]
[[package]]
name = "paste"
version = "1.0.15"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "57c0d7b74b563b49d38dae00a0c37d4d6de9b432382b2892f0574ddcae73fd0a"
[[package]]
name = "proc-macro2"
version = "1.0.86"
@ -451,13 +530,34 @@ dependencies = [
[[package]]
name = "quote"
version = "1.0.37"
version = "1.0.36"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "b5b9d34b8991d19d98081b46eacdd8eb58c6f2b201139f7c5f643cc155a633af"
checksum = "0fa76aaf39101c457836aec0ce2316dbdc3ab723cdda1c6bd4e6ad4208acaca7"
dependencies = [
"proc-macro2",
]
[[package]]
name = "ratatui"
version = "0.28.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "5ba6a365afbe5615999275bea2446b970b10a41102500e27ce7678d50d978303"
dependencies = [
"bitflags 2.6.0",
"cassowary",
"compact_str",
"crossterm",
"instability",
"itertools",
"lru",
"paste",
"strum",
"strum_macros",
"unicode-segmentation",
"unicode-truncate",
"unicode-width",
]
[[package]]
name = "redox_syscall"
version = "0.5.3"
@ -487,9 +587,9 @@ dependencies = [
"ahash",
"anyhow",
"clap",
"crossterm",
"notify-debouncer-mini",
"os_pipe",
"ratatui",
"rustlings-macros",
"serde",
"serde_json",
@ -506,6 +606,12 @@ dependencies = [
"toml_edit",
]
[[package]]
name = "rustversion"
version = "1.0.17"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "955d28af4278de8121b7ebeb796b6a45735dc01436d898801014aced2773a3d6"
[[package]]
name = "ryu"
version = "1.0.18"
@ -529,18 +635,18 @@ checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"
[[package]]
name = "serde"
version = "1.0.209"
version = "1.0.208"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "99fce0ffe7310761ca6bf9faf5115afbc19688edd00171d81b1bb1b116c63e09"
checksum = "cff085d2cb684faa248efb494c39b68e522822ac0de72ccf08109abde717cfb2"
dependencies = [
"serde_derive",
]
[[package]]
name = "serde_derive"
version = "1.0.209"
version = "1.0.208"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "a5831b979fd7b5439637af1752d535ff49f4860c0f341d1baeb6faf0f4242170"
checksum = "24008e81ff7613ed8e5ba0cfaf24e2c2f1e5b8a0495711e44fcd4882fca62bcf"
dependencies = [
"proc-macro2",
"quote",
@ -549,9 +655,9 @@ dependencies = [
[[package]]
name = "serde_json"
version = "1.0.127"
version = "1.0.125"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8043c06d9f82bd7271361ed64f415fe5e12a77fdb52e573e7f06a516dea329ad"
checksum = "83c8e735a073ccf5be70aa8066aa984eaf2fa000db6c8d0100ae605b366d31ed"
dependencies = [
"itoa",
"memchr",
@ -604,6 +710,12 @@ version = "1.13.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "3c5e1a9a646d36c3599cd173a41282daf47c44583ad367b8e6837255952e5c67"
[[package]]
name = "static_assertions"
version = "1.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "a2eb9349b6444b326872e140eb1cf5e7c522154d69e7a0ffb0fb81c06b37543f"
[[package]]
name = "strsim"
version = "0.11.1"
@ -611,10 +723,32 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7da8b5736845d9f2fcb837ea5d9e2628564b3b043a70948a3f0b778838c5fb4f"
[[package]]
name = "syn"
version = "2.0.76"
name = "strum"
version = "0.26.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "578e081a14e0cefc3279b0472138c513f37b41a08d5a3cca9b6e4e8ceb6cd525"
checksum = "8fec0f0aef304996cf250b31b5a10dee7980c85da9d759361292b8bca5a18f06"
dependencies = [
"strum_macros",
]
[[package]]
name = "strum_macros"
version = "0.26.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "4c6bee85a5a24955dc440386795aa378cd9cf82acd5f764469152d2270e581be"
dependencies = [
"heck",
"proc-macro2",
"quote",
"rustversion",
"syn",
]
[[package]]
name = "syn"
version = "2.0.75"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "f6af063034fc1935ede7be0122941bafa9bacb949334d090b77ca98b5817c7d9"
dependencies = [
"proc-macro2",
"quote",
@ -662,6 +796,29 @@ version = "1.0.12"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "3354b9ac3fae1ff6755cb6db53683adb661634f67557942dea4facebec0fee4b"
[[package]]
name = "unicode-segmentation"
version = "1.11.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d4c87d22b6e3f4a18d4d40ef354e97c90fcb14dd91d7dc0aa9d8a1172ebf7202"
[[package]]
name = "unicode-truncate"
version = "1.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "b3644627a5af5fa321c95b9b235a72fd24cd29c648c2c379431e6628655627bf"
dependencies = [
"itertools",
"unicode-segmentation",
"unicode-width",
]
[[package]]
name = "unicode-width"
version = "0.1.13"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0336d538f7abc86d282a4189614dfaa90810dfc2c6f6427eaf88e16311dd225d"
[[package]]
name = "utf8parse"
version = "0.2.2"

View file

@ -19,7 +19,7 @@ edition = "2021" # On Update: Update the edition of the `rustfmt` command that c
rust-version = "1.80"
[workspace.dependencies]
serde = { version = "1.0.209", features = ["derive"] }
serde = { version = "1.0.208", features = ["derive"] }
toml_edit = { version = "0.22.20", default-features = false, features = ["parse", "serde"] }
[package]
@ -49,11 +49,11 @@ include = [
ahash = { version = "0.8.11", default-features = false }
anyhow = "1.0.86"
clap = { version = "4.5.16", features = ["derive"] }
crossterm = { version = "0.28.1", default-features = false, features = ["windows", "events"] }
notify-debouncer-mini = { version = "0.4.1", default-features = false }
os_pipe = "1.2.1"
ratatui = { version = "0.28.0", default-features = false, features = ["crossterm"] }
rustlings-macros = { path = "rustlings-macros", version = "=6.2.0" }
serde_json = "1.0.127"
serde_json = "1.0.125"
serde.workspace = true
toml_edit.workspace = true

View file

@ -16,7 +16,7 @@ include = [
proc-macro = true
[dependencies]
quote = "1.0.37"
quote = "1.0.36"
serde.workspace = true
toml_edit.workspace = true

View file

@ -271,7 +271,6 @@ impl AppState {
Ok(exercise.path)
}
// Reset the exercise by index and return its name.
pub fn reset_exercise_by_ind(&mut self, exercise_ind: usize) -> Result<&'static str> {
if exercise_ind >= self.exercises.len() {
bail!(BAD_INDEX_ERR);
@ -281,7 +280,7 @@ impl AppState {
let exercise = &self.exercises[exercise_ind];
self.reset(exercise_ind, exercise.path)?;
Ok(exercise.name)
Ok(exercise.path)
}
// Return the index of the next pending exercise or `None` if all exercises are done.

View file

@ -1,5 +1,5 @@
use anyhow::Result;
use crossterm::style::{style, StyledContent, Stylize};
use ratatui::crossterm::style::{style, StyledContent, Stylize};
use std::{
fmt::{self, Display, Formatter},
io::Write,

View file

@ -1,5 +1,5 @@
use anyhow::{bail, Context, Result};
use crossterm::style::Stylize;
use ratatui::crossterm::style::Stylize;
use serde::Deserialize;
use std::{
env::set_current_dir,

View file

@ -1,96 +1,95 @@
use anyhow::{Context, Result};
use crossterm::{
cursor,
event::{
self, DisableMouseCapture, EnableMouseCapture, Event, KeyCode, KeyEventKind, MouseEventKind,
use ratatui::{
backend::CrosstermBackend,
crossterm::{
event::{self, DisableMouseCapture, EnableMouseCapture, Event, KeyCode, KeyEventKind},
terminal::{disable_raw_mode, enable_raw_mode, EnterAlternateScreen, LeaveAlternateScreen},
QueueableCommand,
},
terminal::{
disable_raw_mode, enable_raw_mode, DisableLineWrap, EnableLineWrap, EnterAlternateScreen,
LeaveAlternateScreen,
},
QueueableCommand,
Terminal,
};
use std::io::{self, StdoutLock, Write};
use crate::app_state::AppState;
use self::state::{Filter, ListState};
use self::state::{Filter, UiState};
mod state;
fn handle_list(app_state: &mut AppState, stdout: &mut StdoutLock) -> Result<()> {
let mut list_state = ListState::new(app_state, stdout)?;
let mut terminal = Terminal::new(CrosstermBackend::new(stdout))?;
terminal.clear()?;
loop {
match event::read().context("Failed to read terminal event")? {
Event::Key(key) => {
match key.kind {
KeyEventKind::Release => continue,
KeyEventKind::Press | KeyEventKind::Repeat => (),
}
let mut ui_state = UiState::new(app_state);
list_state.message.clear();
'outer: loop {
terminal.try_draw(|frame| ui_state.draw(frame).map_err(io::Error::other))?;
match key.code {
KeyCode::Char('q') => return Ok(()),
KeyCode::Down | KeyCode::Char('j') => list_state.select_next(),
KeyCode::Up | KeyCode::Char('k') => list_state.select_previous(),
KeyCode::Home | KeyCode::Char('g') => list_state.select_first(),
KeyCode::End | KeyCode::Char('G') => list_state.select_last(),
KeyCode::Char('d') => {
if list_state.filter() == Filter::Done {
list_state.set_filter(Filter::None);
list_state.message.push_str("Disabled filter DONE");
} else {
list_state.set_filter(Filter::Done);
list_state.message.push_str(
"Enabled filter DONE │ Press d again to disable the filter",
);
}
}
KeyCode::Char('p') => {
let message = if list_state.filter() == Filter::Pending {
list_state.set_filter(Filter::None);
"Disabled filter PENDING"
} else {
list_state.set_filter(Filter::Pending);
"Enabled filter PENDING │ Press p again to disable the filter"
};
list_state.message.push_str(message);
}
KeyCode::Char('r') => list_state.reset_selected()?,
KeyCode::Char('c') => {
if list_state.selected_to_current_exercise()? {
return Ok(());
}
}
// Redraw to remove the message.
KeyCode::Esc => (),
_ => continue,
}
let key = loop {
match event::read().context("Failed to read terminal event")? {
Event::Key(key) => match key.kind {
KeyEventKind::Press | KeyEventKind::Repeat => break key,
KeyEventKind::Release => (),
},
// Redraw
Event::Resize(_, _) => continue 'outer,
// Ignore
Event::FocusGained | Event::FocusLost | Event::Mouse(_) | Event::Paste(_) => (),
}
Event::Mouse(event) => match event.kind {
MouseEventKind::ScrollDown => list_state.select_next(),
MouseEventKind::ScrollUp => list_state.select_previous(),
_ => continue,
},
Event::Resize(width, height) => list_state.set_term_size(width, height),
// Ignore
Event::FocusGained | Event::FocusLost => continue,
}
};
list_state.draw(stdout)?;
ui_state.message.clear();
match key.code {
KeyCode::Char('q') => break,
KeyCode::Down | KeyCode::Char('j') => ui_state.select_next(),
KeyCode::Up | KeyCode::Char('k') => ui_state.select_previous(),
KeyCode::Home | KeyCode::Char('g') => ui_state.select_first(),
KeyCode::End | KeyCode::Char('G') => ui_state.select_last(),
KeyCode::Char('d') => {
let message = if ui_state.filter == Filter::Done {
ui_state.filter = Filter::None;
"Disabled filter DONE"
} else {
ui_state.filter = Filter::Done;
"Enabled filter DONE │ Press d again to disable the filter"
};
ui_state = ui_state.with_updated_rows();
ui_state.message.push_str(message);
}
KeyCode::Char('p') => {
let message = if ui_state.filter == Filter::Pending {
ui_state.filter = Filter::None;
"Disabled filter PENDING"
} else {
ui_state.filter = Filter::Pending;
"Enabled filter PENDING │ Press p again to disable the filter"
};
ui_state = ui_state.with_updated_rows();
ui_state.message.push_str(message);
}
KeyCode::Char('r') => {
ui_state = ui_state.with_reset_selected()?;
}
KeyCode::Char('c') => {
ui_state.selected_to_current_exercise()?;
break;
}
_ => (),
}
}
Ok(())
}
pub fn list(app_state: &mut AppState) -> Result<()> {
let mut stdout = io::stdout().lock();
stdout
.queue(EnterAlternateScreen)?
.queue(cursor::Hide)?
.queue(DisableLineWrap)?
.queue(EnableMouseCapture)?;
.queue(EnableMouseCapture)?
.flush()?;
enable_raw_mode()?;
let res = handle_list(app_state, &mut stdout);
@ -98,8 +97,6 @@ pub fn list(app_state: &mut AppState) -> Result<()> {
// Restore the terminal even if we got an error.
stdout
.queue(LeaveAlternateScreen)?
.queue(cursor::Show)?
.queue(EnableLineWrap)?
.queue(DisableMouseCapture)?
.flush()?;
disable_raw_mode()?;

View file

@ -1,35 +1,14 @@
use anyhow::{Context, Result};
use crossterm::{
cursor::{MoveTo, MoveToNextLine},
style::{Attribute, Color, ResetColor, SetAttribute, SetBackgroundColor, SetForegroundColor},
terminal::{self, BeginSynchronizedUpdate, Clear, ClearType, EndSynchronizedUpdate},
QueueableCommand,
};
use std::{
fmt::Write as _,
io::{self, StdoutLock, Write},
use ratatui::{
layout::{Constraint, Rect},
style::{Style, Stylize},
text::{Span, Text},
widgets::{Block, Borders, HighlightSpacing, Paragraph, Row, Table, TableState},
Frame,
};
use std::{fmt::Write, mem};
use crate::{app_state::AppState, exercise::Exercise, term::progress_bar, MAX_EXERCISE_NAME_LEN};
const MAX_SCROLL_PADDING: usize = 8;
// +1 for column padding.
const SPACE: &[u8] = &[b' '; MAX_EXERCISE_NAME_LEN + 1];
fn next_ln(stdout: &mut StdoutLock) -> io::Result<()> {
stdout
.queue(Clear(ClearType::UntilNewLine))?
.queue(MoveToNextLine(1))?;
Ok(())
}
// Avoids having the last written char as the last displayed one when the
// written width is higher than the terminal width.
// Happens on the Gnome terminal for example.
fn next_ln_overwrite(stdout: &mut StdoutLock) -> io::Result<()> {
stdout.write_all(b" ")?;
next_ln(stdout)
}
use crate::{app_state::AppState, progress_bar::progress_bar_ratatui};
#[derive(Copy, Clone, PartialEq, Eq)]
pub enum Filter {
@ -38,386 +17,269 @@ pub enum Filter {
None,
}
pub struct ListState<'a> {
/// Footer message to be displayed if not empty.
pub struct UiState<'a> {
pub table: Table<'static>,
pub message: String,
pub filter: Filter,
app_state: &'a mut AppState,
name_col_width: usize,
filter: Filter,
n_rows_with_filter: usize,
/// Selected row out of the filtered ones.
selected_row: Option<usize>,
row_offset: usize,
term_width: u16,
term_height: u16,
separator_line: Vec<u8>,
narrow_term: bool,
show_footer: bool,
max_n_rows_to_display: usize,
scroll_padding: usize,
table_state: TableState,
n_rows: usize,
}
impl<'a> ListState<'a> {
pub fn new(app_state: &'a mut AppState, stdout: &mut StdoutLock) -> io::Result<Self> {
stdout.queue(Clear(ClearType::All))?;
impl<'a> UiState<'a> {
pub fn with_updated_rows(mut self) -> Self {
let current_exercise_ind = self.app_state.current_exercise_ind();
let name_col_title_len = 4;
let name_col_width = app_state
self.n_rows = 0;
let rows = self
.app_state
.exercises()
.iter()
.enumerate()
.filter_map(|(ind, exercise)| {
let exercise_state = if exercise.done {
if self.filter == Filter::Pending {
return None;
}
"DONE".green()
} else {
if self.filter == Filter::Done {
return None;
}
"PENDING".yellow()
};
self.n_rows += 1;
let next = if ind == current_exercise_ind {
">>>>".bold().red()
} else {
Span::default()
};
Some(Row::new([
next,
exercise_state,
Span::raw(exercise.name),
Span::raw(exercise.path),
]))
});
self.table = self.table.rows(rows);
if self.n_rows == 0 {
self.table_state.select(None);
} else {
self.table_state.select(Some(
self.table_state
.selected()
.map_or(0, |selected| selected.min(self.n_rows - 1)),
));
}
self
}
pub fn new(app_state: &'a mut AppState) -> Self {
let header = Row::new(["Next", "State", "Name", "Path"]);
let max_name_len = app_state
.exercises()
.iter()
.map(|exercise| exercise.name.len())
.max()
.map_or(name_col_title_len, |max| max.max(name_col_title_len));
.unwrap_or(4) as u16;
let widths = [
Constraint::Length(4),
Constraint::Length(7),
Constraint::Length(max_name_len),
Constraint::Fill(1),
];
let table = Table::default()
.widths(widths)
.header(header)
.column_spacing(2)
.highlight_spacing(HighlightSpacing::Always)
.highlight_style(Style::new().bg(ratatui::style::Color::Rgb(50, 50, 50)))
.highlight_symbol("🦀")
.block(Block::default().borders(Borders::BOTTOM));
let selected = app_state.current_exercise_ind();
let table_state = TableState::default()
.with_offset(selected.saturating_sub(10))
.with_selected(Some(selected));
let filter = Filter::None;
let n_rows_with_filter = app_state.exercises().len();
let selected = app_state.current_exercise_ind();
let n_rows = app_state.exercises().len();
let mut slf = Self {
let slf = Self {
table,
message: String::with_capacity(128),
app_state,
name_col_width,
filter,
n_rows_with_filter,
selected_row: Some(selected),
row_offset: selected.saturating_sub(MAX_SCROLL_PADDING),
// Set by `set_term_size`
term_width: 0,
term_height: 0,
separator_line: Vec::new(),
narrow_term: false,
show_footer: true,
max_n_rows_to_display: 0,
scroll_padding: 0,
app_state,
table_state,
n_rows,
};
let (width, height) = terminal::size()?;
slf.set_term_size(width, height);
slf.draw(stdout)?;
Ok(slf)
}
fn update_offset(&mut self) {
let Some(selected) = self.selected_row else {
return;
};
let min_offset = (selected + self.scroll_padding)
.saturating_sub(self.max_n_rows_to_display.saturating_sub(1));
let max_offset = selected.saturating_sub(self.scroll_padding);
let global_max_offset = self
.n_rows_with_filter
.saturating_sub(self.max_n_rows_to_display);
self.row_offset = self
.row_offset
.max(min_offset)
.min(max_offset)
.min(global_max_offset);
}
pub fn set_term_size(&mut self, width: u16, height: u16) {
self.term_width = width;
self.term_height = height;
if height == 0 {
return;
}
let wide_help_footer_width = 95;
// The help footer is shorter when nothing is selected.
self.narrow_term = width < wide_help_footer_width && self.selected_row.is_some();
let header_height = 1;
// 2 separator, 1 progress bar, 1-2 footer message.
let footer_height = 4 + u16::from(self.narrow_term);
self.show_footer = height > header_height + footer_height;
if self.show_footer {
self.separator_line = "".as_bytes().repeat(width as usize);
}
self.max_n_rows_to_display = height
.saturating_sub(header_height + u16::from(self.show_footer) * footer_height)
as usize;
self.scroll_padding = (self.max_n_rows_to_display / 4).min(MAX_SCROLL_PADDING);
self.update_offset();
}
fn draw_rows(
&self,
stdout: &mut StdoutLock,
filtered_exercises: impl Iterator<Item = (usize, &'a Exercise)>,
) -> io::Result<usize> {
let current_exercise_ind = self.app_state.current_exercise_ind();
let mut n_displayed_rows = 0;
for (exercise_ind, exercise) in filtered_exercises
.skip(self.row_offset)
.take(self.max_n_rows_to_display)
{
if self.selected_row == Some(self.row_offset + n_displayed_rows) {
stdout.queue(SetBackgroundColor(Color::Rgb {
r: 50,
g: 50,
b: 50,
}))?;
stdout.write_all("🦀".as_bytes())?;
} else {
stdout.write_all(b" ")?;
}
if exercise_ind == current_exercise_ind {
stdout.queue(SetForegroundColor(Color::Red))?;
stdout.write_all(b">>>>>>> ")?;
} else {
stdout.write_all(b" ")?;
}
if exercise.done {
stdout.queue(SetForegroundColor(Color::Yellow))?;
stdout.write_all(b"DONE ")?;
} else {
stdout.queue(SetForegroundColor(Color::Green))?;
stdout.write_all(b"PENDING ")?;
}
stdout.queue(SetForegroundColor(Color::Reset))?;
stdout.write_all(exercise.name.as_bytes())?;
stdout.write_all(&SPACE[..self.name_col_width + 2 - exercise.name.len()])?;
stdout.write_all(exercise.path.as_bytes())?;
next_ln_overwrite(stdout)?;
stdout.queue(ResetColor)?;
n_displayed_rows += 1;
}
Ok(n_displayed_rows)
}
pub fn draw(&mut self, stdout: &mut StdoutLock) -> io::Result<()> {
if self.term_height == 0 {
return Ok(());
}
stdout.queue(BeginSynchronizedUpdate)?.queue(MoveTo(0, 0))?;
// Header
stdout.write_all(b" Current State Name")?;
stdout.write_all(&SPACE[..self.name_col_width - 2])?;
stdout.write_all(b"Path")?;
next_ln_overwrite(stdout)?;
// Rows
let iter = self.app_state.exercises().iter().enumerate();
let n_displayed_rows = match self.filter {
Filter::Done => self.draw_rows(stdout, iter.filter(|(_, exercise)| exercise.done))?,
Filter::Pending => {
self.draw_rows(stdout, iter.filter(|(_, exercise)| !exercise.done))?
}
Filter::None => self.draw_rows(stdout, iter)?,
};
for _ in 0..self.max_n_rows_to_display - n_displayed_rows {
next_ln(stdout)?;
}
if self.show_footer {
stdout.write_all(&self.separator_line)?;
next_ln(stdout)?;
progress_bar(
stdout,
self.app_state.n_done(),
self.app_state.exercises().len() as u16,
self.term_width,
)?;
next_ln(stdout)?;
stdout.write_all(&self.separator_line)?;
next_ln(stdout)?;
if self.message.is_empty() {
// Help footer message
if self.selected_row.is_some() {
stdout.write_all(
"↓/j ↑/k home/g end/G | <c>ontinue at | <r>eset exercise".as_bytes(),
)?;
if self.narrow_term {
next_ln_overwrite(stdout)?;
stdout.write_all(b"filter ")?;
} else {
stdout.write_all(b" | filter ")?;
}
} else {
// Nothing selected (and nothing shown), so only display filter and quit.
stdout.write_all(b"filter ")?;
}
match self.filter {
Filter::Done => {
stdout
.queue(SetForegroundColor(Color::Magenta))?
.queue(SetAttribute(Attribute::Underlined))?;
stdout.write_all(b"<d>one")?;
stdout.queue(ResetColor)?;
stdout.write_all(b"/<p>ending")?;
}
Filter::Pending => {
stdout.write_all(b"<d>one/")?;
stdout
.queue(SetForegroundColor(Color::Magenta))?
.queue(SetAttribute(Attribute::Underlined))?;
stdout.write_all(b"<p>ending")?;
stdout.queue(ResetColor)?;
}
Filter::None => stdout.write_all(b"<d>one/<p>ending")?,
}
stdout.write_all(b" | <q>uit list")?;
if self.narrow_term {
next_ln_overwrite(stdout)?;
} else {
next_ln(stdout)?;
}
} else {
stdout.queue(SetForegroundColor(Color::Magenta))?;
stdout.write_all(self.message.as_bytes())?;
stdout.queue(ResetColor)?;
next_ln_overwrite(stdout)?;
if self.narrow_term {
next_ln(stdout)?;
}
}
}
stdout.queue(EndSynchronizedUpdate)?.flush()
}
fn set_selected(&mut self, selected: usize) {
self.selected_row = Some(selected);
self.update_offset();
}
fn update_rows(&mut self) {
self.n_rows_with_filter = match self.filter {
Filter::Done => self
.app_state
.exercises()
.iter()
.filter(|exercise| exercise.done)
.count(),
Filter::Pending => self
.app_state
.exercises()
.iter()
.filter(|exercise| !exercise.done)
.count(),
Filter::None => self.app_state.exercises().len(),
};
if self.n_rows_with_filter == 0 {
self.selected_row = None;
return;
}
self.set_selected(
self.selected_row
.map_or(0, |selected| selected.min(self.n_rows_with_filter - 1)),
);
}
#[inline]
pub fn filter(&self) -> Filter {
self.filter
}
pub fn set_filter(&mut self, filter: Filter) {
self.filter = filter;
self.update_rows();
slf.with_updated_rows()
}
pub fn select_next(&mut self) {
if let Some(selected) = self.selected_row {
self.set_selected((selected + 1).min(self.n_rows_with_filter - 1));
if self.n_rows > 0 {
let next = self
.table_state
.selected()
.map_or(0, |selected| (selected + 1).min(self.n_rows - 1));
self.table_state.select(Some(next));
}
}
pub fn select_previous(&mut self) {
if let Some(selected) = self.selected_row {
self.set_selected(selected.saturating_sub(1));
if self.n_rows > 0 {
let previous = self
.table_state
.selected()
.map_or(0, |selected| selected.saturating_sub(1));
self.table_state.select(Some(previous));
}
}
pub fn select_first(&mut self) {
if self.n_rows_with_filter > 0 {
self.set_selected(0);
if self.n_rows > 0 {
self.table_state.select(Some(0));
}
}
pub fn select_last(&mut self) {
if self.n_rows_with_filter > 0 {
self.set_selected(self.n_rows_with_filter - 1);
if self.n_rows > 0 {
self.table_state.select(Some(self.n_rows - 1));
}
}
fn selected_to_exercise_ind(&self, selected: usize) -> Result<usize> {
match self.filter {
Filter::Done => self
.app_state
.exercises()
.iter()
.enumerate()
.filter(|(_, exercise)| exercise.done)
.nth(selected)
.context("Invalid selection index")
.map(|(ind, _)| ind),
Filter::Pending => self
.app_state
.exercises()
.iter()
.enumerate()
.filter(|(_, exercise)| !exercise.done)
.nth(selected)
.context("Invalid selection index")
.map(|(ind, _)| ind),
Filter::None => Ok(selected),
}
}
pub fn draw(&mut self, frame: &mut Frame) -> Result<()> {
let area = frame.area();
let narrow = area.width < 95;
let narrow_u16 = u16::from(narrow);
let table_height = area.height - 3 - narrow_u16;
pub fn reset_selected(&mut self) -> Result<()> {
let Some(selected) = self.selected_row else {
self.message.push_str("Nothing selected to reset!");
return Ok(());
frame.render_stateful_widget(
&self.table,
Rect {
x: 0,
y: 0,
width: area.width,
height: table_height,
},
&mut self.table_state,
);
frame.render_widget(
Paragraph::new(progress_bar_ratatui(
self.app_state.n_done(),
self.app_state.exercises().len() as u16,
area.width,
)?)
.block(Block::default().borders(Borders::BOTTOM)),
Rect {
x: 0,
y: table_height,
width: area.width,
height: 2,
},
);
let message = if self.message.is_empty() {
// Help footer.
let mut text = Text::default();
let mut spans = Vec::with_capacity(4);
spans.push(Span::raw(
"↓/j ↑/k home/g end/G │ <c>ontinue at │ <r>eset exercise │",
));
if narrow {
text.push_line(mem::take(&mut spans));
spans.push(Span::raw("filter "));
} else {
spans.push(Span::raw(" filter "));
}
match self.filter {
Filter::Done => {
spans.push("<d>one".underlined().magenta());
spans.push(Span::raw("/<p>ending"));
}
Filter::Pending => {
spans.push(Span::raw("<d>one/"));
spans.push("<p>ending".underlined().magenta());
}
Filter::None => spans.push(Span::raw("<d>one/<p>ending")),
}
spans.push(Span::raw(" │ <q>uit list"));
text.push_line(spans);
text
} else {
Text::from(self.message.as_str().light_blue())
};
let exercise_ind = self.selected_to_exercise_ind(selected)?;
let exercise_name = self.app_state.reset_exercise_by_ind(exercise_ind)?;
self.update_rows();
write!(
self.message,
"The exercise `{exercise_name}` has been reset",
)?;
frame.render_widget(
message,
Rect {
x: 0,
y: table_height + 2,
width: area.width,
height: 1 + narrow_u16,
},
);
Ok(())
}
// Return `true` if there was something to select.
pub fn selected_to_current_exercise(&mut self) -> Result<bool> {
let Some(selected) = self.selected_row else {
self.message.push_str("Nothing selected to continue at!");
return Ok(false);
pub fn with_reset_selected(mut self) -> Result<Self> {
let Some(selected) = self.table_state.selected() else {
return Ok(self);
};
let exercise_ind = self.selected_to_exercise_ind(selected)?;
self.app_state.set_current_exercise_ind(exercise_ind)?;
let ind = self
.app_state
.exercises()
.iter()
.enumerate()
.filter_map(|(ind, exercise)| match self.filter {
Filter::Done => exercise.done.then_some(ind),
Filter::Pending => (!exercise.done).then_some(ind),
Filter::None => Some(ind),
})
.nth(selected)
.context("Invalid selection index")?;
Ok(true)
let exercise_path = self.app_state.reset_exercise_by_ind(ind)?;
write!(self.message, "The exercise {exercise_path} has been reset")?;
Ok(self.with_updated_rows())
}
pub fn selected_to_current_exercise(&mut self) -> Result<()> {
let Some(selected) = self.table_state.selected() else {
return Ok(());
};
let ind = self
.app_state
.exercises()
.iter()
.enumerate()
.filter_map(|(ind, exercise)| match self.filter {
Filter::Done => exercise.done.then_some(ind),
Filter::Pending => (!exercise.done).then_some(ind),
Filter::None => Some(ind),
})
.nth(selected)
.context("Invalid selection index")?;
self.app_state.set_current_exercise_ind(ind)
}
}

View file

@ -20,13 +20,13 @@ mod exercise;
mod info_file;
mod init;
mod list;
mod progress_bar;
mod run;
mod term;
mod terminal_link;
mod watch;
const CURRENT_FORMAT_VERSION: u8 = 1;
const MAX_EXERCISE_NAME_LEN: usize = 32;
/// Rustlings is a collection of small exercises to get you used to writing and reading Rust code
#[derive(Parser)]

100
src/progress_bar.rs Normal file
View file

@ -0,0 +1,100 @@
use anyhow::{bail, Result};
use ratatui::text::{Line, Span};
use std::fmt::Write;
const PREFIX: &str = "Progress: [";
const PREFIX_WIDTH: u16 = PREFIX.len() as u16;
// Leaving the last char empty (_) for `total` > 99.
const POSTFIX_WIDTH: u16 = "] xxx/xx exercises_".len() as u16;
const WRAPPER_WIDTH: u16 = PREFIX_WIDTH + POSTFIX_WIDTH;
const MIN_LINE_WIDTH: u16 = WRAPPER_WIDTH + 4;
const PROGRESS_EXCEEDS_MAX_ERR: &str =
"The progress of the progress bar is higher than the maximum";
/// Terminal progress bar to be used when not using Ratataui.
pub fn progress_bar(progress: u16, total: u16, line_width: u16) -> Result<String> {
use ratatui::crossterm::style::Stylize;
if progress > total {
bail!(PROGRESS_EXCEEDS_MAX_ERR);
}
if line_width < MIN_LINE_WIDTH {
return Ok(format!("Progress: {progress}/{total} exercises"));
}
let mut line = String::with_capacity(usize::from(line_width));
line.push_str(PREFIX);
let width = line_width - WRAPPER_WIDTH;
let filled = (width * progress) / total;
let mut green_part = String::with_capacity(usize::from(filled + 1));
for _ in 0..filled {
green_part.push('#');
}
if filled < width {
green_part.push('>');
}
write!(line, "{}", green_part.green()).unwrap();
let width_minus_filled = width - filled;
if width_minus_filled > 1 {
let red_part_width = width_minus_filled - 1;
let mut red_part = String::with_capacity(usize::from(red_part_width));
for _ in 0..red_part_width {
red_part.push('-');
}
write!(line, "{}", red_part.red()).unwrap();
}
writeln!(line, "] {progress:>3}/{total} exercises").unwrap();
Ok(line)
}
/// Progress bar to be used with Ratataui.
// Not using Ratatui's Gauge widget to keep the progress bar consistent.
pub fn progress_bar_ratatui(progress: u16, total: u16, line_width: u16) -> Result<Line<'static>> {
use ratatui::style::Stylize;
if progress > total {
bail!(PROGRESS_EXCEEDS_MAX_ERR);
}
if line_width < MIN_LINE_WIDTH {
return Ok(Line::raw(format!("Progress: {progress}/{total} exercises")));
}
let mut spans = Vec::with_capacity(4);
spans.push(Span::raw(PREFIX));
let width = line_width - WRAPPER_WIDTH;
let filled = (width * progress) / total;
let mut green_part = String::with_capacity(usize::from(filled + 1));
for _ in 0..filled {
green_part.push('#');
}
if filled < width {
green_part.push('>');
}
spans.push(green_part.green());
let width_minus_filled = width - filled;
if width_minus_filled > 1 {
let red_part_width = width_minus_filled - 1;
let mut red_part = String::with_capacity(usize::from(red_part_width));
for _ in 0..red_part_width {
red_part.push('-');
}
spans.push(red_part.red());
}
spans.push(Span::raw(format!("] {progress:>3}/{total} exercises")));
Ok(Line::from(spans))
}

View file

@ -1,5 +1,5 @@
use anyhow::{bail, Result};
use crossterm::style::{style, Stylize};
use ratatui::crossterm::style::{style, Stylize};
use std::io::{self, Write};
use crate::{

View file

@ -1,65 +1,7 @@
use std::io::{self, BufRead, StdoutLock, Write};
use crossterm::{
cursor::MoveTo,
style::{Color, ResetColor, SetForegroundColor},
terminal::{Clear, ClearType},
QueueableCommand,
};
/// Terminal progress bar to be used when not using Ratataui.
pub fn progress_bar(
stdout: &mut StdoutLock,
progress: u16,
total: u16,
line_width: u16,
) -> io::Result<()> {
debug_assert!(progress <= total);
const PREFIX: &[u8] = b"Progress: [";
const PREFIX_WIDTH: u16 = PREFIX.len() as u16;
// Leaving the last char empty (_) for `total` > 99.
const POSTFIX_WIDTH: u16 = "] xxx/xx exercises_".len() as u16;
const WRAPPER_WIDTH: u16 = PREFIX_WIDTH + POSTFIX_WIDTH;
const MIN_LINE_WIDTH: u16 = WRAPPER_WIDTH + 4;
if line_width < MIN_LINE_WIDTH {
return write!(stdout, "Progress: {progress}/{total} exercises");
}
stdout.write_all(PREFIX)?;
let width = line_width - WRAPPER_WIDTH;
let filled = (width * progress) / total;
stdout.queue(SetForegroundColor(Color::Green))?;
for _ in 0..filled {
stdout.write_all(b"#")?;
}
if filled < width {
stdout.write_all(b">")?;
}
let width_minus_filled = width - filled;
if width_minus_filled > 1 {
let red_part_width = width_minus_filled - 1;
stdout.queue(SetForegroundColor(Color::Red))?;
for _ in 0..red_part_width {
stdout.write_all(b"-")?;
}
}
stdout.queue(ResetColor)?;
write!(stdout, "] {progress:>3}/{total} exercises")
}
pub fn clear_terminal(stdout: &mut StdoutLock) -> io::Result<()> {
stdout
.queue(MoveTo(0, 0))?
.queue(Clear(ClearType::All))?
.queue(Clear(ClearType::Purge))
.map(|_| ())
stdout.write_all(b"\x1b[H\x1b[2J\x1b[3J")
}
pub fn press_enter_prompt(stdout: &mut StdoutLock) -> io::Result<()> {

View file

@ -1,5 +1,5 @@
use anyhow::Result;
use crossterm::{
use ratatui::crossterm::{
style::{style, Stylize},
terminal,
};
@ -9,7 +9,7 @@ use crate::{
app_state::{AppState, ExercisesProgress},
clear_terminal,
exercise::{RunnableExercise, OUTPUT_CAPACITY},
term::progress_bar,
progress_bar::progress_bar,
terminal_link::TerminalFileLink,
};
@ -76,8 +76,7 @@ impl<'a> WatchState<'a> {
self.done_status = DoneStatus::Pending;
}
self.render()?;
Ok(())
self.render()
}
pub fn handle_file_change(&mut self, exercise_ind: usize) -> Result<()> {
@ -121,7 +120,7 @@ impl<'a> WatchState<'a> {
self.writer.flush()
}
pub fn render(&mut self) -> io::Result<()> {
pub fn render(&mut self) -> Result<()> {
// Prevent having the first line shifted if clearing wasn't successful.
self.writer.write_all(b"\n")?;
clear_terminal(&mut self.writer)?;
@ -156,15 +155,14 @@ impl<'a> WatchState<'a> {
}
let line_width = terminal::size()?.0;
progress_bar(
&mut self.writer,
let progress_bar = progress_bar(
self.app_state.n_done(),
self.app_state.exercises().len() as u16,
line_width,
)?;
writeln!(
self.writer,
"\nCurrent exercise: {}",
"{progress_bar}Current exercise: {}",
self.app_state.current_exercise().terminal_link(),
)?;
@ -173,7 +171,7 @@ impl<'a> WatchState<'a> {
Ok(())
}
pub fn show_hint(&mut self) -> io::Result<()> {
pub fn show_hint(&mut self) -> Result<()> {
self.show_hint = true;
self.render()
}

View file

@ -1,4 +1,4 @@
use crossterm::event::{self, Event, KeyCode, KeyEventKind, KeyModifiers};
use ratatui::crossterm::event::{self, Event, KeyCode, KeyEventKind, KeyModifiers};
use std::sync::mpsc::Sender;
use super::WatchEvent;
@ -78,7 +78,7 @@ pub fn terminal_event_handler(tx: Sender<WatchEvent>, manual_run: bool) {
return;
}
}
Event::FocusGained | Event::FocusLost | Event::Mouse(_) => continue,
Event::FocusGained | Event::FocusLost | Event::Mouse(_) | Event::Paste(_) => continue,
}
};