diff options
Diffstat (limited to 'src/main.rs')
| -rw-r--r-- | src/main.rs | 91 |
1 files changed, 64 insertions, 27 deletions
diff --git a/src/main.rs b/src/main.rs index 575b5e5..759d481 100644 --- a/src/main.rs +++ b/src/main.rs @@ -1,5 +1,5 @@ use std::io::{stdout, Write}; -use std::{cmp::min, env, iter, process::exit}; +use std::{cmp::min, collections::HashMap, env, iter, process::exit}; use crossterm::{ cursor, @@ -73,6 +73,35 @@ trait View { fn render(&self, bk: &Bk) -> Vec<String>; } +// TODO render something useful? +struct Mark; +impl View for Mark { + fn run(&self, bk: &mut Bk, kc: KeyCode) { + match kc { + KeyCode::Char(c) => bk.mark(c), + _ => (), + } + bk.view = Some(&Page) + } + fn render(&self, bk: &Bk) -> Vec<String> { + Page::render(&Page, bk) + } +} + +struct Jump; +impl View for Jump { + fn run(&self, bk: &mut Bk, kc: KeyCode) { + match kc { + KeyCode::Char(c) => bk.jump(c), + _ => (), + } + bk.view = Some(&Page); + } + fn render(&self, bk: &Bk) -> Vec<String> { + Page::render(&Page, bk) + } +} + struct Help; impl View for Help { fn run(&self, bk: &mut Bk, _: KeyCode) { @@ -99,7 +128,8 @@ PageDown Right Space f l Page Down n Repeat search forward N Repeat search backward - ' Jump to previous position + mx Set mark x + 'x Jump to mark x "#; text.lines().map(String::from).collect() @@ -111,7 +141,7 @@ impl View for Nav { fn run(&self, bk: &mut Bk, kc: KeyCode) { match kc { KeyCode::Esc | KeyCode::Left | KeyCode::Char('h') | KeyCode::Char('q') => { - bk.chapter = bk.jump.0; + bk.jump('\''); bk.view = Some(&Page); } KeyCode::Enter | KeyCode::Tab | KeyCode::Right | KeyCode::Char('l') => { @@ -174,17 +204,14 @@ impl View for Page { KeyCode::Esc | KeyCode::Char('q') => bk.view = None, KeyCode::Tab => { bk.nav_top = bk.chapter.saturating_sub(bk.rows - 1); - bk.jump = (bk.chapter, bk.line); + bk.mark('\''); bk.view = Some(&Nav); } KeyCode::F(_) => bk.view = Some(&Help), KeyCode::Char('?') => bk.start_search(Direction::Backward), KeyCode::Char('/') => bk.start_search(Direction::Forward), - KeyCode::Char('\'') => { - let jump = (bk.chapter, bk.line); - bk.jump(); - bk.jump = jump; - } + KeyCode::Char('m') => bk.view = Some(&Mark), + KeyCode::Char('\'') => bk.view = Some(&Jump), KeyCode::Char('N') => { bk.search(Direction::Backward); } @@ -194,9 +221,13 @@ impl View for Page { bk.search(Direction::Forward); } KeyCode::End | KeyCode::Char('G') => { + bk.mark('\''); bk.line = bk.lines().len().saturating_sub(bk.rows); } - KeyCode::Home | KeyCode::Char('g') => bk.line = 0, + KeyCode::Home | KeyCode::Char('g') => { + bk.mark('\''); + bk.line = 0; + } KeyCode::Char('d') => { bk.scroll_down(bk.rows / 2); } @@ -235,7 +266,7 @@ impl View for Search { fn run(&self, bk: &mut Bk, kc: KeyCode) { match kc { KeyCode::Esc => { - bk.jump(); + bk.jump('\''); bk.view = Some(&Page); } KeyCode::Enter => { @@ -243,13 +274,13 @@ impl View for Search { } KeyCode::Backspace => { bk.query.pop(); - bk.jump(); + bk.jump('\''); bk.search(bk.dir.clone()); } KeyCode::Char(c) => { bk.query.push(c); if !bk.search(bk.dir.clone()) { - bk.jump(); + bk.jump('\''); } } _ => (), @@ -300,7 +331,7 @@ struct Bk<'a> { // position in the book chapter: usize, line: usize, - jump: (usize, usize), + mark: HashMap<char, (usize, usize)>, // terminal cols: u16, rows: usize, @@ -308,9 +339,9 @@ struct Bk<'a> { max_width: u16, // view state view: Option<&'a dyn View>, + dir: Direction, nav_top: usize, query: String, - dir: Direction, } impl Bk<'_> { @@ -349,7 +380,7 @@ impl Bk<'_> { chapters, chapter, line, - jump: (0, 0), + mark: HashMap::new(), cols, rows: rows as usize, max_width, @@ -359,14 +390,6 @@ impl Bk<'_> { dir: Direction::Forward, } } - fn jump(&mut self) { - let (c, l) = self.jump; - self.chapter = c; - self.line = l; - } - fn lines(&self) -> &Vec<String> { - &self.chapters[self.chapter].lines - } fn run(&mut self) -> crossterm::Result<()> { let mut stdout = stdout(); queue!(stdout, terminal::EnterAlternateScreen, cursor::Hide)?; @@ -395,6 +418,20 @@ impl Bk<'_> { queue!(stdout, terminal::LeaveAlternateScreen, cursor::Show)?; terminal::disable_raw_mode() } + fn mark(&mut self, c: char) { + self.mark.insert(c, (self.chapter, self.line)); + } + fn jump(&mut self, c: char) { + if let Some(&(c, l)) = self.mark.get(&c) { + let jump = (self.chapter, self.line); + self.chapter = c; + self.line = l; + self.mark.insert('\'', jump); + } + } + fn lines(&self) -> &Vec<String> { + &self.chapters[self.chapter].lines + } fn next_chapter(&mut self) { if self.chapter < self.chapters.len() - 1 { self.chapter += 1; @@ -424,7 +461,7 @@ impl Bk<'_> { } fn start_search(&mut self, dir: Direction) { self.query.clear(); - self.jump = (self.chapter, self.line); + self.mark('\''); self.dir = dir; self.view = Some(&Search); } @@ -443,7 +480,7 @@ impl Bk<'_> { Err(n) => n - 1, }; self.chapter = c; - return true + return true; } } false @@ -459,7 +496,7 @@ impl Bk<'_> { Err(n) => n - 1, }; self.chapter = c; - return true + return true; } } false |