diff options
Diffstat (limited to 'src/main.rs')
| -rw-r--r-- | src/main.rs | 87 |
1 files changed, 46 insertions, 41 deletions
diff --git a/src/main.rs b/src/main.rs index b1586c3..0d1889e 100644 --- a/src/main.rs +++ b/src/main.rs @@ -61,8 +61,6 @@ fn wrap(text: &str, width: usize) -> Vec<(usize, String)> { lines } -struct Position(String, usize, usize); - trait View { fn run(&self, bk: &mut Bk, kc: KeyCode); fn render(&self, bk: &Bk) -> Vec<String>; @@ -112,7 +110,7 @@ impl View for Nav { bk.view = Some(&Page); } KeyCode::Down | KeyCode::Char('j') => { - if bk.chapter < bk.toc.len() - 1 { + if bk.chapter < bk.chapters.len() - 1 { bk.chapter += 1; if bk.chapter == bk.nav_top + bk.rows { bk.nav_top += 1; @@ -132,23 +130,28 @@ impl View for Nav { bk.nav_top = 0; } KeyCode::End | KeyCode::Char('G') => { - bk.chapter = bk.toc.len() - 1; - bk.nav_top = bk.toc.len().saturating_sub(bk.rows); + bk.chapter = bk.chapters.len() - 1; + bk.nav_top = bk.chapters.len().saturating_sub(bk.rows); } _ => (), } } fn render(&self, bk: &Bk) -> Vec<String> { - let end = std::cmp::min(bk.nav_top + bk.rows, bk.toc.len()); + let end = std::cmp::min(bk.nav_top + bk.rows, bk.chapters.len()); - bk.toc[bk.nav_top..end] + bk.chapters[bk.nav_top..end] .iter() .enumerate() - .map(|(i, label)| { + .map(|(i, chapter)| { if bk.chapter == bk.nav_top + i { - format!("{}{}{}", Attribute::Reverse, label, Attribute::Reset) + format!( + "{}{}{}", + Attribute::Reverse, + chapter.title, + Attribute::Reset + ) } else { - label.to_string() + chapter.title.to_string() } }) .collect() @@ -278,6 +281,8 @@ impl View for Search { // ideally we could use string slices as pointers, but self referential structs are hard struct Chapter { + // for toc + title: String, // chapter text as a single string, used for search text: String, // line wrapped text @@ -287,14 +292,12 @@ struct Chapter { } struct Bk<'a> { - // the book chapters: Vec<Chapter>, - toc: Vec<String>, // position in the book chapter: usize, line: usize, jump: (usize, usize), - // the terminal + // terminal cols: u16, rows: usize, // user config @@ -307,12 +310,12 @@ struct Bk<'a> { } impl Bk<'_> { - fn new(epub: epub::Epub, line: &Position, max_width: u16) -> Self { + fn new(epub: epub::Epub, chapter: usize, line: usize, max_width: u16) -> Self { let (cols, rows) = terminal::size().unwrap(); let width = std::cmp::min(cols, max_width) as usize; let mut chapters = Vec::with_capacity(epub.chapters.len()); - for text in epub.chapters { + for (title, text) in epub.chapters { let wrap = wrap(&text, width); let mut lines = Vec::with_capacity(wrap.len()); let mut bytes = Vec::with_capacity(wrap.len()); @@ -321,20 +324,24 @@ impl Bk<'_> { lines.push(line); bytes.push(byte); } - chapters.push(Chapter { text, lines, bytes }); + chapters.push(Chapter { + title, + text, + lines, + bytes, + }); } Bk { - jump: (0, 0), - view: Some(&Page), - chapter: line.1, - nav_top: 0, - toc: epub.nav, chapters, - line: line.2, - max_width, + chapter, + line, + jump: (0, 0), cols, rows: rows as usize, + max_width, + view: Some(&Page), + nav_top: 0, search: String::new(), } } @@ -372,7 +379,7 @@ impl Bk<'_> { terminal::disable_raw_mode() } fn next_chapter(&mut self) { - if self.chapter < self.toc.len() - 1 { + if self.chapter < self.chapters.len() - 1 { self.chapter += 1; self.line = 0; } @@ -438,14 +445,13 @@ impl Bk<'_> { } } -fn restore() -> Option<Position> { +fn restore(save_path: &str) -> Option<(String, usize, usize)> { let path = std::env::args().nth(1); - let save_path = format!("{}/.local/share/bk", std::env::var("HOME").unwrap()); let save = std::fs::read_to_string(save_path); let get_save = |s: String| { let mut lines = s.lines(); - Position( + ( lines.next().unwrap().to_string(), lines.next().unwrap().parse::<usize>().unwrap(), lines.next().unwrap().parse::<usize>().unwrap(), @@ -454,40 +460,39 @@ fn restore() -> Option<Position> { match (save, path) { (Err(_), None) => None, - (Err(_), Some(path)) => Some(Position(path, 0, 0)), + (Err(_), Some(path)) => Some((path, 0, 0)), (Ok(save), None) => Some(get_save(save)), (Ok(save), Some(path)) => { let save = get_save(save); - if save.0 == path { + if path == save.0 { Some(save) } else { - Some(Position(path, 0, 0)) + Some((path, 0, 0)) } } } } fn main() { - let line = restore().unwrap_or_else(|| { + let save_path = format!("{}/.local/share/bk", std::env::var("HOME").unwrap()); + let (path, chapter, line) = restore(&save_path).unwrap_or_else(|| { println!("usage: bk path"); std::process::exit(1); }); - let epub = epub::Epub::new(&line.0).unwrap_or_else(|e| { + let epub = epub::Epub::new(&path).unwrap_or_else(|e| { println!("error reading epub: {}", e); std::process::exit(1); }); - let mut bk = Bk::new(epub, &line, 75); + let mut bk = Bk::new(epub, chapter, line, 75); // crossterm really shouldn't error bk.run().unwrap(); - std::fs::write( - format!("{}/.local/share/bk", std::env::var("HOME").unwrap()), - format!("{}\n{}\n{}", line.0, bk.chapter, bk.line), - ) - .unwrap_or_else(|e| { - println!("error saving position: {}", e); - std::process::exit(1); - }); + std::fs::write(save_path, format!("{}\n{}\n{}", path, bk.chapter, bk.line)).unwrap_or_else( + |e| { + println!("error saving position: {}", e); + std::process::exit(1); + }, + ); } |