diff --git a/src/editor.rs b/src/editor.rs index b1ea346..9276e66 100644 --- a/src/editor.rs +++ b/src/editor.rs @@ -73,23 +73,20 @@ impl Editor { } } - pub fn name(&self) -> String { + pub fn title(&self) -> String { if let Some(path) = &self.path { if let Some(name) = path.file_name() { - return name.to_string_lossy().to_string(); + let decorator = if self.unsaved_changes { "*" } else { " " }; + return format!("{}{}", decorator, name.to_string_lossy()); } } - "untitled".into() + "*untitled".into() } pub fn path(&self) -> Option<&PathBuf> { self.path.as_ref() } - pub fn has_unsaved_changes(&self) -> bool { - self.unsaved_changes - } - pub fn enter(&mut self) { self.active = true; self.find_lines(); @@ -227,7 +224,7 @@ impl Editor { "({},{}) {}", self.cursor.line, self.physical_column(), - self.name(), + self.title(), ); } } diff --git a/src/main.rs b/src/main.rs index 407e77d..e9fe3b1 100644 --- a/src/main.rs +++ b/src/main.rs @@ -34,6 +34,7 @@ struct Navigator { init_path: PathBuf, immediate_open: bool, message: Option, + scroll: usize, } impl Navigator { @@ -70,6 +71,7 @@ impl Navigator { path, immediate_open, message: None, + scroll: 0, } } @@ -98,20 +100,20 @@ impl Navigator { queue!(stdout(), SetColors(Colors::new(Color::Black, Color::White))).unwrap(); } queue!(stdout(), MoveTo(1, index as u16 + 1)).unwrap(); - print!( - "{}{}", - editor.has_unsaved_changes().then_some("*").unwrap_or(" "), - editor.name() - ); + print!("{}", editor.title()); queue!(stdout(), ResetColor).unwrap(); } let offset = self.editors.len() as u16 + 2; queue!(stdout(), MoveTo(0, offset)).unwrap(); - print!("Current dir: {}", self.path.to_string_lossy()); - for (index, path) in self.files.iter().enumerate() { - if index == self.selected.wrapping_sub(self.editors.len()) { + + let max_rows = terminal::size().unwrap().1 as usize - self.editors.len() - 4; + let end = (self.scroll + max_rows).min(self.files.len()); + let visible_rows = self.scroll..end; + + for (index, path) in self.files[visible_rows].iter().enumerate() { + if index + self.scroll == self.selected.wrapping_sub(self.editors.len()) { queue!(stdout(), SetColors(Colors::new(Color::Black, Color::White))).unwrap(); } queue!(stdout(), MoveTo(1, index as u16 + 1 + offset)).unwrap(); @@ -157,16 +159,32 @@ impl Navigator { } fn nav_up(&mut self) { - self.selected = self.selected.saturating_sub(1); + if self.selected > 0 { + self.selected -= 1; + } else { + let selected_max = self.editors.len() + self.files.len(); + self.selected = selected_max - 1; + } + self.update_scroll(); } fn nav_down(&mut self) { - self.selected = (self.selected + 1).min(self.editors.len() + self.files.len() - 1); + let selected_max = self.editors.len() + self.files.len(); + self.selected = (self.selected + 1) % selected_max; + self.update_scroll(); + } + + fn update_scroll(&mut self) { + let height = terminal::size().unwrap().1 as usize - self.editors.len() - 5; + let selected_file = self.selected.saturating_sub(self.editors.len()); + self.scroll = self + .scroll + .clamp(selected_file.saturating_sub(height), selected_file); } fn enter(&mut self) { if self.selected < self.editors.len() { - self.editors[self.selected].enter(); + self.open_selected(); return; } @@ -220,6 +238,7 @@ impl Navigator { fn open_selected(&mut self) { if self.selected < self.editors.len() { + self.scroll = 0; self.editors[self.selected].enter(); } }