diff options
| -rw-r--r-- | src/main.rs | 105 |
1 files changed, 79 insertions, 26 deletions
diff --git a/src/main.rs b/src/main.rs index 31c92e7..d4c9642 100644 --- a/src/main.rs +++ b/src/main.rs @@ -7,7 +7,7 @@ use crossterm::{ event::{self, Event, KeyCode, MouseEvent}, queue, style::{Attribute, Print}, - terminal, + terminal::{self, ClearType}, }; use roxmltree::Document; @@ -16,25 +16,13 @@ enum Mode { Help, Nav, Read, + Search, } struct Epub { container: zip::ZipArchive<File>, } -struct Bk { - mode: Mode, - epub: Epub, - cols: u16, - chapter: Vec<String>, - chapter_idx: usize, - nav_idx: usize, - pos: usize, - rows: usize, - toc: Vec<(String, String)>, - pad: u16, -} - impl Epub { fn new(path: &str) -> Result<Self, Error> { let file = File::open(path)?; @@ -168,6 +156,7 @@ impl Epub { fn wrap(text: Vec<String>, width: u16) -> Vec<String> { // XXX assumes a char is 1 unit wide + // TODO break at dash/hyphen let mut wrapped = Vec::with_capacity(text.len() * 2); for chunk in text { @@ -196,6 +185,20 @@ fn wrap(text: Vec<String>, width: u16) -> Vec<String> { wrapped } +struct Bk { + mode: Mode, + epub: Epub, + cols: u16, + chapter: Vec<String>, + chapter_idx: usize, + nav_idx: usize, + pos: usize, + rows: usize, + toc: Vec<(String, String)>, + pad: u16, + search: String, +} + impl Bk { fn new( path: &str, @@ -216,6 +219,7 @@ impl Bk { pad, cols, rows: rows as usize, + search: String::new(), }; bk.get_chapter(chapter_idx); bk.pos = pos; @@ -288,9 +292,44 @@ impl Bk { Mode::Read => return self.run_read(e), Mode::Nav => self.run_nav(e), Mode::Help => self.mode = Mode::Read, + Mode::Search => self.run_search(e), } true } + fn really_search(&mut self, forwards: bool) { + if forwards { + if let Some(pos) = self.chapter[self.pos + 1..] + .iter() + .position(|s| s.contains(&self.search)) + { + self.pos += pos + 1; + } + } else if let Some(pos) = self.chapter[0..self.pos - 1] + .iter() + .rposition(|s| s.contains(&self.search)) + { + self.pos = pos; + } + } + fn run_search(&mut self, e: Event) { + match e { + Event::Key(e) => match e.code { + KeyCode::Esc => { + self.search = String::new(); + self.mode = Mode::Read; + } + KeyCode::Enter => { + self.mode = Mode::Read; + self.really_search(true); + } + KeyCode::Char(c) => { + self.search.push(c); + } + _ => (), + }, + _ => (), + } + } fn run_nav(&mut self, e: Event) { match e { Event::Key(e) => match e.code { @@ -343,15 +382,15 @@ impl Bk { KeyCode::Esc | KeyCode::Char('q') => return false, KeyCode::Tab => self.start_nav(), KeyCode::F(1) | KeyCode::Char('?') => self.mode = Mode::Help, - KeyCode::Char('p') => { - if self.chapter_idx > 0 { - self.get_chapter(self.chapter_idx - 1); - } + KeyCode::Char('/') => { + self.search = String::new(); + self.mode = Mode::Search; + } + KeyCode::Char('N') => { + self.really_search(false); } KeyCode::Char('n') => { - if self.chapter_idx < self.toc.len() - 1 { - self.get_chapter(self.chapter_idx + 1); - } + self.really_search(true); } KeyCode::End | KeyCode::Char('G') => { self.pos = (self.chapter.len() / self.rows) * self.rows; @@ -402,15 +441,27 @@ impl Bk { Mode::Read => self.render_read(), Mode::Help => self.render_help(), Mode::Nav => self.render_nav(), + Mode::Search => self.render_search(), } } + fn render_search(&self) { + let mut stdout = stdout(); + queue!( + stdout, + cursor::MoveTo(0, self.rows as u16), + terminal::Clear(ClearType::CurrentLine), + Print(&self.search) + ) + .unwrap(); + stdout.flush().unwrap(); + } fn start_nav(&mut self) { self.nav_idx = self.chapter_idx; self.mode = Mode::Nav; } fn render_nav(&self) { let mut stdout = stdout(); - queue!(stdout, terminal::Clear(terminal::ClearType::All),).unwrap(); + queue!(stdout, terminal::Clear(ClearType::All),).unwrap(); let end = std::cmp::min(self.rows, self.toc.len()); for i in 0..end { if i == self.nav_idx { @@ -441,21 +492,23 @@ impl Bk { let text = r#" Esc q Quit F1 ? Help + / Search Tab Table of Contents + PageDown Right Space f l Page Down PageUp Left b h Page Up d Half Page Down u Half Page Up Down j Line Down Up k Line Up - n Next Chapter - p Previous Chapter Home g Chapter Start End G Chapter End + n Search Forwards + N Search Backwards "#; let mut stdout = stdout(); - queue!(stdout, terminal::Clear(terminal::ClearType::All),).unwrap(); + queue!(stdout, terminal::Clear(ClearType::All),).unwrap(); for (i, line) in text.lines().enumerate() { queue!(stdout, cursor::MoveTo(0, i as u16), Print(line)).unwrap(); } @@ -465,7 +518,7 @@ PageDown Right Space f l Page Down let mut stdout = stdout(); queue!( stdout, - terminal::Clear(terminal::ClearType::All), + terminal::Clear(ClearType::All), cursor::MoveTo(self.pad, 0), ) .unwrap(); |