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authorJames Campos <james.r.campos@gmail.com>2020-05-20 04:13:49 -0700
committerJames Campos <james.r.campos@gmail.com>2020-05-20 04:13:49 -0700
commitf8535a4f5625ec708e7ed17116f4d1edac5a64bd (patch)
treedb24ee8d2c1bf25800abf957c01a6a8e5085f539 /src
parentc748a8c4d3b660789b2d98b7628b22378827e959 (diff)
downloadbk-f8535a4f5625ec708e7ed17116f4d1edac5a64bd.tar.gz
bookmarks
Diffstat (limited to 'src')
-rw-r--r--src/main.rs91
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