diff --git a/src/list.rs b/src/list.rs index 27a31d13..a571eeec 100644 --- a/src/list.rs +++ b/src/list.rs @@ -38,15 +38,15 @@ fn handle_list(app_state: &mut AppState, stdout: &mut StdoutLock) -> Result<()> KeyCode::Home | KeyCode::Char('g') => list_state.select_first(), KeyCode::End | KeyCode::Char('G') => list_state.select_last(), KeyCode::Char('d') => { - let message = if list_state.filter() == Filter::Done { + if list_state.filter() == Filter::Done { list_state.set_filter(Filter::None); - "Disabled filter DONE" + list_state.message.push_str("Disabled filter DONE"); } else { list_state.set_filter(Filter::Done); - "Enabled filter DONE │ Press d again to disable the filter" - }; - - list_state.message.push_str(message); + 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 { @@ -71,23 +71,20 @@ fn handle_list(app_state: &mut AppState, stdout: &mut StdoutLock) -> Result<()> KeyCode::Esc => (), _ => continue, } - - list_state.redraw(stdout)?; } - Event::Mouse(event) => { - match event.kind { - MouseEventKind::ScrollDown => list_state.select_next(), - MouseEventKind::ScrollUp => list_state.select_previous(), - _ => continue, - } - - list_state.redraw(stdout)?; + 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); } - // Redraw - Event::Resize(_, _) => list_state.redraw(stdout)?, // Ignore - Event::FocusGained | Event::FocusLost => (), + Event::FocusGained | Event::FocusLost => continue, } + + list_state.redraw(stdout)?; } } diff --git a/src/list/state.rs b/src/list/state.rs index 645c768f..d8744352 100644 --- a/src/list/state.rs +++ b/src/list/state.rs @@ -1,19 +1,30 @@ use anyhow::{Context, Result}; use crossterm::{ - cursor::{MoveDown, MoveTo}, - style::{Color, ResetColor, SetForegroundColor}, - terminal::{self, BeginSynchronizedUpdate, EndSynchronizedUpdate}, + cursor::{MoveTo, MoveToNextLine}, + style::{Attribute, Color, ResetColor, SetAttribute, SetForegroundColor}, + terminal::{self, BeginSynchronizedUpdate, Clear, ClearType, EndSynchronizedUpdate}, QueueableCommand, }; use std::{ fmt::Write as _, - io::{self, StdoutLock, Write as _}, + io::{self, StdoutLock, Write}, }; -use crate::{app_state::AppState, term::clear_terminal, MAX_EXERCISE_NAME_LEN}; +use crate::{app_state::AppState, term::progress_bar, MAX_EXERCISE_NAME_LEN}; -// +1 for padding. -const SPACE: &[u8] = &[b' '; MAX_EXERCISE_NAME_LEN + 1]; +fn next_ln(stdout: &mut StdoutLock) -> io::Result<()> { + if CLEAR_LAST_CHAR { + // 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. + stdout.write_all(b" ")?; + } + + stdout + .queue(Clear(ClearType::UntilNewLine))? + .queue(MoveToNextLine(1))?; + Ok(()) +} #[derive(Copy, Clone, PartialEq, Eq)] pub enum Filter { @@ -30,10 +41,16 @@ pub struct ListState<'a> { name_col_width: usize, offset: usize, selected: Option, + term_width: u16, + term_height: u16, + separator: Vec, } impl<'a> ListState<'a> { pub fn new(app_state: &'a mut AppState, stdout: &mut StdoutLock) -> io::Result { + let (term_width, term_height) = terminal::size()?; + stdout.queue(Clear(ClearType::All))?; + let name_col_width = app_state .exercises() .iter() @@ -41,13 +58,8 @@ impl<'a> ListState<'a> { .max() .map_or(4, |max| max.max(4)); - clear_terminal(stdout)?; - stdout.write_all(b" Current State Name ")?; - stdout.write_all(&SPACE[..name_col_width - 4])?; - stdout.write_all(b"Path\r\n")?; - - let selected = app_state.current_exercise_ind(); let n_rows_with_filter = app_state.exercises().len(); + let selected = app_state.current_exercise_ind(); let mut slf = Self { message: String::with_capacity(128), @@ -57,6 +69,9 @@ impl<'a> ListState<'a> { name_col_width, offset: selected.saturating_sub(10), selected: Some(selected), + term_width, + term_height, + separator: "─".as_bytes().repeat(term_width as usize), }; slf.redraw(stdout)?; @@ -64,6 +79,145 @@ impl<'a> ListState<'a> { Ok(slf) } + pub fn redraw(&mut self, stdout: &mut StdoutLock) -> io::Result<()> { + if self.term_height == 0 { + return Ok(()); + } + + stdout.queue(BeginSynchronizedUpdate)?.queue(MoveTo(0, 0))?; + + // +1 for padding. + const SPACE: &[u8] = &[b' '; MAX_EXERCISE_NAME_LEN + 1]; + stdout.write_all(b" Current State Name")?; + stdout.write_all(&SPACE[..self.name_col_width - 2])?; + stdout.write_all(b"Path")?; + next_ln::(stdout)?; + + let narrow = self.term_width < 96; + let show_footer = self.term_height > 6; + let max_n_rows_to_display = + (self.term_height - 1 - u16::from(show_footer) * (4 + u16::from(narrow))) as usize; + + let displayed_exercises = self + .app_state + .exercises() + .iter() + .enumerate() + .filter(|(_, exercise)| match self.filter { + Filter::Done => exercise.done, + Filter::Pending => !exercise.done, + Filter::None => true, + }) + .skip(self.offset) + .take(max_n_rows_to_display); + + let current_exercise_ind = self.app_state.current_exercise_ind(); + let mut n_displayed_rows = 0; + for (exercise_ind, exercise) in displayed_exercises { + if self.selected == Some(n_displayed_rows) { + 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(ResetColor)?; + + 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::(stdout)?; + n_displayed_rows += 1; + } + + for _ in 0..max_n_rows_to_display - n_displayed_rows { + next_ln::(stdout)?; + } + + if show_footer { + stdout.write_all(&self.separator)?; + 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)?; + next_ln::(stdout)?; + + if self.message.is_empty() { + // Help footer. + stdout.write_all( + "↓/j ↑/k home/g end/G │ ontinue at │ eset exercise │".as_bytes(), + )?; + if narrow { + next_ln::(stdout)?; + stdout.write_all(b"filter ")?; + } else { + stdout.write_all(b" filter ")?; + } + + match self.filter { + Filter::Done => { + stdout + .queue(SetForegroundColor(Color::Magenta))? + .queue(SetAttribute(Attribute::Underlined))?; + stdout.write_all(b"one")?; + stdout.queue(ResetColor)?; + stdout.write_all(b"/

ending")?; + } + Filter::Pending => { + stdout.write_all(b"one/")?; + stdout + .queue(SetForegroundColor(Color::Magenta))? + .queue(SetAttribute(Attribute::Underlined))?; + stdout.write_all(b"

ending")?; + stdout.queue(ResetColor)?; + } + Filter::None => stdout.write_all(b"one/

ending")?, + } + stdout.write_all(" │ uit list".as_bytes())?; + next_ln::(stdout)?; + } else { + stdout.queue(SetForegroundColor(Color::Magenta))?; + stdout.write_all(self.message.as_bytes())?; + stdout.queue(ResetColor)?; + next_ln::(stdout)?; + if narrow { + next_ln::(stdout)?; + } + } + } + + stdout.queue(EndSynchronizedUpdate)?.flush() + } + + pub fn set_term_size(&mut self, width: u16, height: u16) { + self.term_width = width; + self.term_height = height; + self.separator = "─".as_bytes().repeat(width as usize); + } + #[inline] pub fn filter(&self) -> Filter { self.filter @@ -76,13 +230,13 @@ impl<'a> ListState<'a> { .app_state .exercises() .iter() - .filter(|exercise| !exercise.done) + .filter(|exercise| exercise.done) .count(), Filter::Pending => self .app_state .exercises() .iter() - .filter(|exercise| exercise.done) + .filter(|exercise| !exercise.done) .count(), Filter::None => self.app_state.exercises().len(), }; @@ -127,124 +281,38 @@ impl<'a> ListState<'a> { } } - pub fn redraw(&mut self, stdout: &mut StdoutLock) -> io::Result<()> { - stdout.queue(BeginSynchronizedUpdate)?; - stdout.queue(MoveTo(0, 1))?; - let (width, height) = terminal::size()?; - let narrow = width < 95; - let narrow_u16 = u16::from(narrow); - let max_n_rows_to_display = height.saturating_sub(narrow_u16 + 4); - - let displayed_exercises = self - .app_state - .exercises() - .iter() - .enumerate() - .filter(|(_, exercise)| match self.filter { - Filter::Done => exercise.done, - Filter::Pending => !exercise.done, - Filter::None => true, - }) - .skip(self.offset) - .take(max_n_rows_to_display as usize); - - let mut n_displayed_rows: u16 = 0; - let current_exercise_ind = self.app_state.current_exercise_ind(); - for (ind, exercise) in displayed_exercises { - if self.selected == Some(n_displayed_rows as usize) { - write!(stdout, "🦀")?; - } else { - stdout.write_all(b" ")?; - } - - if 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(ResetColor)?; - - 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())?; - stdout.write_all(b"\r\n")?; - - n_displayed_rows += 1; + fn selected_to_exercise_ind(&self, selected: usize) -> Result { + 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), } - - stdout.queue(MoveDown(max_n_rows_to_display - n_displayed_rows))?; - - // TODO - // 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 │ ontinue at │ 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("one".underlined().magenta()); - // spans.push(Span::raw("/

ending")); - // } - // Filter::Pending => { - // spans.push(Span::raw("one/")); - // spans.push("

ending".underlined().magenta()); - // } - // Filter::None => spans.push(Span::raw("one/

ending")), - // } - - // spans.push(Span::raw(" │ uit list")); - // text.push_line(spans); - // text - // } else { - // Text::from(self.message.as_str().light_blue()) - // }; - - stdout.queue(EndSynchronizedUpdate)?; - stdout.flush()?; - - Ok(()) } pub fn reset_selected(&mut self) -> Result<()> { let Some(selected) = self.selected else { + self.message.push_str("Nothing selected to reset!"); 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")?; - - let exercise_path = self.app_state.reset_exercise_by_ind(ind)?; + let exercise_ind = self.selected_to_exercise_ind(selected)?; + let exercise_path = self.app_state.reset_exercise_by_ind(exercise_ind)?; write!(self.message, "The exercise {exercise_path} has been reset")?; Ok(()) @@ -257,20 +325,8 @@ impl<'a> ListState<'a> { return Ok(false); }; - let (ind, _) = self - .app_state - .exercises() - .iter() - .enumerate() - .filter(|(_, exercise)| match self.filter { - Filter::Done => exercise.done, - Filter::Pending => !exercise.done, - Filter::None => true, - }) - .nth(selected) - .context("Invalid selection index")?; - - self.app_state.set_current_exercise_ind(ind)?; + let exercise_ind = self.selected_to_exercise_ind(selected)?; + self.app_state.set_current_exercise_ind(exercise_ind)?; Ok(true) } } diff --git a/src/main.rs b/src/main.rs index 59513671..61dd8ea8 100644 --- a/src/main.rs +++ b/src/main.rs @@ -20,7 +20,6 @@ mod exercise; mod info_file; mod init; mod list; -mod progress_bar; mod run; mod term; mod terminal_link; diff --git a/src/progress_bar.rs b/src/progress_bar.rs deleted file mode 100644 index 837c4c78..00000000 --- a/src/progress_bar.rs +++ /dev/null @@ -1,53 +0,0 @@ -use std::io::{self, StdoutLock, Write}; - -use crossterm::{ - style::{Color, ResetColor, SetForegroundColor}, - QueueableCommand, -}; - -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; - -/// 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); - - 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") -} diff --git a/src/term.rs b/src/term.rs index 07edf900..b993108e 100644 --- a/src/term.rs +++ b/src/term.rs @@ -2,10 +2,58 @@ 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))? diff --git a/src/watch/state.rs b/src/watch/state.rs index 26c83d50..40e3d3ec 100644 --- a/src/watch/state.rs +++ b/src/watch/state.rs @@ -9,7 +9,7 @@ use crate::{ app_state::{AppState, ExercisesProgress}, clear_terminal, exercise::{RunnableExercise, OUTPUT_CAPACITY}, - progress_bar::progress_bar, + term::progress_bar, terminal_link::TerminalFileLink, };