feat: custom manager layout (#76)

app/src/manager/layout.rs

@@ -1,5 +1,4 @@
-use core::manager::{ALL_RATIO, CURRENT_RATIO, PARENT_RATIO, PREVIEW_RATIO};
-
+use config::MANAGER;
 use ratatui::{buffer::Buffer, layout::{self, Constraint, Direction, Rect}, widgets::{Block, Borders, Padding, Widget}};
 
 use super::{Folder, Preview};
@@ -15,15 +14,16 @@ impl<'a> Layout<'a> {
 
 impl<'a> Widget for Layout<'a> {
 	fn render(self, area: Rect, buf: &mut Buffer) {
+		let layout = &MANAGER.layout;
 		let manager = &self.cx.manager;
 
 		let chunks = layout::Layout::new()
 			.direction(Direction::Horizontal)
 			.constraints(
 				[
-					Constraint::Ratio(PARENT_RATIO, ALL_RATIO),
-					Constraint::Ratio(CURRENT_RATIO, ALL_RATIO),
-					Constraint::Ratio(PREVIEW_RATIO, ALL_RATIO),
+					Constraint::Ratio(layout.parent, layout.all),
+					Constraint::Ratio(layout.current, layout.all),
+					Constraint::Ratio(layout.preview, layout.all),
 				]
 				.as_ref(),
 			)

app/src/manager/preview.rs

@@ -1,7 +1,7 @@
-use core::manager::{PreviewData, PREVIEW_BORDER};
+use core::manager::PreviewData;
 
 use ansi_to_tui::IntoText;
-use ratatui::{buffer::Buffer, layout::Rect, widgets::{Clear, Paragraph, Widget}};
+use ratatui::{buffer::Buffer, layout::Rect, widgets::{Paragraph, Widget}};
 
 use super::Folder;
 use crate::Ctx;
@@ -16,16 +16,6 @@ impl<'a> Preview<'a> {
 
 impl<'a> Widget for Preview<'a> {
 	fn render(self, area: Rect, buf: &mut Buffer) {
-		Clear.render(
-			Rect {
-				x:      area.x,
-				y:      area.y,
-				width:  area.width + PREVIEW_BORDER / 2,
-				height: area.height,
-			},
-			buf,
-		);
-
 		let manager = &self.cx.manager;
 		let Some(hovered) = manager.hovered().map(|h| &h.path) else {
 			return;

config/docs/yazi.md

@@ -2,6 +2,10 @@
 
 ## manager
 
+- layout: Manager layout by ratio, 3-element array
+
+  - `[1, 4, 3]`: 1/8 width for parent, 4/8 width for current, 3/8 width for preview
+
 - sort_by: File sorting method
 
   - `"alphabetical"`: Sort alphabetically

config/preset/keymap.toml

@@ -169,11 +169,11 @@ keymap = [
 	{ on = [ "x" ], exec = [ "delete --cut", "move 1 --in-operating" ] },
 
 	# Yank/Paste
-	{ on = [ "y" ], exec = [ "yank" ] },
-	{ on = [ "p" ], exec = [ "paste" ] },
-	{ on = [ "P" ], exec = [ "paste --before" ] },
+	{ on = [ "y" ], exec = "yank" },
+	{ on = [ "p" ], exec = "paste" },
+	{ on = [ "P" ], exec = "paste --before" },
 
 	# Undo/Redo
-	{ on = [ "u" ], exec = [ "undo" ] },
-	{ on = [ "<C-r>" ], exec = [ "redo" ] },
+	{ on = [ "u" ], exec = "undo" },
+	{ on = [ "<C-r>" ], exec = "redo" },
 ]

config/preset/yazi.toml

@@ -1,4 +1,5 @@
 [manager]
+layout         = [ 1, 4, 3 ]
 sort_by        = "modified"
 sort_reverse   = true
 sort_dir_first = true

config/src/manager/layout.rs

@@ -0,0 +1,69 @@
+use anyhow::bail;
+use crossterm::terminal::WindowSize;
+use ratatui::prelude::Rect;
+use serde::Deserialize;
+use shared::Term;
+
+use super::{FOLDER_MARGIN, PREVIEW_BORDER, PREVIEW_MARGIN};
+
+#[derive(Clone, Copy, Debug, Default, Deserialize, PartialEq, Eq)]
+#[serde(try_from = "Vec<u32>")]
+pub struct ManagerLayout {
+	pub parent:  u32,
+	pub current: u32,
+	pub preview: u32,
+	pub all:     u32,
+}
+
+impl TryFrom<Vec<u32>> for ManagerLayout {
+	type Error = anyhow::Error;
+
+	fn try_from(ratio: Vec<u32>) -> Result<Self, Self::Error> {
+		if ratio.len() != 3 {
+			bail!("invalid layout ratio: {:?}", ratio);
+		}
+		if ratio.iter().all(|&r| r == 0) {
+			bail!("at least one layout ratio must be non-zero: {:?}", ratio);
+		}
+
+		Ok(Self {
+			parent:  ratio[0],
+			current: ratio[1],
+			preview: ratio[2],
+			all:     ratio[0] + ratio[1] + ratio[2],
+		})
+	}
+}
+
+impl ManagerLayout {
+	pub fn preview_rect(&self) -> Rect {
+		let WindowSize { columns, rows, .. } = Term::size();
+
+		let x = (columns as u32 * (self.parent + self.current) / self.all) as u16;
+		let width = (columns as u32 * self.preview / self.all) as u16;
+
+		Rect {
+			x:      x.saturating_add(PREVIEW_BORDER / 2),
+			y:      PREVIEW_MARGIN / 2,
+			width:  width.saturating_sub(PREVIEW_BORDER),
+			height: rows.saturating_sub(PREVIEW_MARGIN),
+		}
+	}
+
+	#[inline]
+	pub fn preview_height(&self) -> usize { self.preview_rect().height as usize }
+
+	pub fn folder_rect(&self) -> Rect {
+		let WindowSize { columns, rows, .. } = Term::size();
+
+		Rect {
+			x:      (columns as u32 * self.parent / self.all) as u16,
+			y:      FOLDER_MARGIN / 2,
+			width:  (columns as u32 * self.current / self.all) as u16,
+			height: rows.saturating_sub(FOLDER_MARGIN),
+		}
+	}
+
+	#[inline]
+	pub fn folder_height(&self) -> usize { self.folder_rect().height as usize }
+}

config/src/manager/manager.rs

@@ -1,10 +1,12 @@
 use serde::Deserialize;
 
-use super::SortBy;
+use super::{ManagerLayout, SortBy};
 use crate::MERGED_YAZI;
 
 #[derive(Debug, Deserialize)]
 pub struct Manager {
+	pub layout: ManagerLayout,
+
 	// Sorting
 	pub sort_by:        SortBy,
 	pub sort_reverse:   bool,

config/src/manager/mod.rs

@@ -1,5 +1,12 @@
+mod layout;
 mod manager;
 mod sorting;
 
+pub use layout::*;
 pub use manager::*;
 pub use sorting::*;
+
+const FOLDER_MARGIN: u16 = 2;
+
+const PREVIEW_BORDER: u16 = 2;
+const PREVIEW_MARGIN: u16 = 2;

core/src/manager/folder.rs

@@ -1,11 +1,9 @@
 use std::path::{Path, PathBuf};
 
-use crossterm::terminal::WindowSize;
+use config::MANAGER;
 use indexmap::map::Slice;
 use ratatui::layout::Rect;
-use shared::Term;
 
-use super::{ALL_RATIO, CURRENT_RATIO, DIR_PADDING, PARENT_RATIO};
 use crate::{emit, files::{File, Files, FilesOp}};
 
 #[derive(Default)]
@@ -27,9 +25,6 @@ impl Folder {
 		Self { cwd: cwd.to_path_buf(), in_search: true, ..Default::default() }
 	}
 
-	#[inline]
-	pub fn limit() -> usize { Term::size().rows.saturating_sub(DIR_PADDING) as usize }
-
 	pub fn update(&mut self, op: FilesOp) -> bool {
 		let b = match op {
 			FilesOp::Read(_, items) => self.files.update_read(items),
@@ -55,7 +50,7 @@ impl Folder {
 	}
 
 	pub fn set_page(&mut self, force: bool) -> bool {
-		let limit = Self::limit();
+		let limit = MANAGER.layout.folder_height();
 		let new = if limit == 0 { 0 } else { self.cursor / limit };
 		if !force && self.page == new {
 			return false;
@@ -77,7 +72,7 @@ impl Folder {
 		self.hovered = self.files.duplicate(self.cursor);
 		self.set_page(false);
 
-		let limit = Self::limit();
+		let limit = MANAGER.layout.folder_height();
 		if self.cursor >= (self.offset + limit).min(len).saturating_sub(5) {
 			self.offset = len.saturating_sub(limit).min(self.offset + self.cursor - old);
 		}
@@ -109,7 +104,7 @@ impl Folder {
 
 	#[inline]
 	pub fn window(&self) -> &Slice<PathBuf, File> {
-		let end = (self.offset + Self::limit()).min(self.files.len());
+		let end = (self.offset + MANAGER.layout.folder_height()).min(self.files.len());
 		self.files.get_range(self.offset..end).unwrap()
 	}
 
@@ -172,7 +167,7 @@ impl Folder {
 
 	pub fn paginate(&self) -> &Slice<PathBuf, File> {
 		let len = self.files.len();
-		let limit = Self::limit();
+		let limit = MANAGER.layout.folder_height();
 
 		let start = (self.page * limit).min(len.saturating_sub(1));
 		let end = (start + limit).min(len);
@@ -183,14 +178,11 @@ impl Folder {
 	pub fn has_selected(&self) -> bool { self.files.iter().any(|(_, f)| f.is_selected) }
 
 	pub fn rect_current(&self, path: &Path) -> Option<Rect> {
-		let pos = self.position(path)? - self.offset;
-		let WindowSize { columns, .. } = Term::size();
+		let y = self.position(path)? - self.offset;
 
-		Some(Rect {
-			x:      (columns as u32 * PARENT_RATIO / ALL_RATIO) as u16,
-			y:      pos as u16,
-			width:  (columns as u32 * CURRENT_RATIO / ALL_RATIO) as u16,
-			height: 1,
-		})
+		let mut rect = MANAGER.layout.folder_rect();
+		rect.y = rect.y.saturating_sub(1) + y as u16;
+		rect.height = 1;
+		Some(rect)
 	}
 }

core/src/manager/mod.rs

@@ -13,13 +13,3 @@ pub use preview::*;
 pub use tab::*;
 pub use tabs::*;
 pub use watcher::*;
-
-pub const PARENT_RATIO: u32 = 1;
-pub const CURRENT_RATIO: u32 = 4;
-pub const PREVIEW_RATIO: u32 = 3;
-pub const ALL_RATIO: u32 = PARENT_RATIO + CURRENT_RATIO + PREVIEW_RATIO;
-
-pub const DIR_PADDING: u16 = 2;
-
-pub const PREVIEW_BORDER: u16 = 2;
-pub const PREVIEW_MARGIN: u16 = 2;

core/src/manager/preview.rs

@@ -2,14 +2,11 @@ use std::{io::BufRead, mem, path::{Path, PathBuf}, sync::{atomic::{AtomicUsize,
 
 use adaptor::Adaptor;
 use anyhow::{anyhow, bail, Result};
-use config::{BOOT, PREVIEW};
-use crossterm::terminal::WindowSize;
-use ratatui::prelude::Rect;
-use shared::{MimeKind, Term};
+use config::{BOOT, MANAGER, PREVIEW};
+use shared::MimeKind;
 use syntect::{easy::HighlightFile, util::as_24_bit_terminal_escaped};
 use tokio::{fs, task::JoinHandle};
 
-use super::{ALL_RATIO, CURRENT_RATIO, PARENT_RATIO, PREVIEW_BORDER, PREVIEW_MARGIN, PREVIEW_RATIO};
 use crate::{emit, external, files::{Files, FilesOp}, highlighter};
 
 #[derive(Default)]
@@ -31,20 +28,6 @@ pub enum PreviewData {
 }
 
 impl Preview {
-	fn rect() -> Rect {
-		let WindowSize { columns, rows, .. } = Term::size();
-
-		let x = (columns as u32 * (PARENT_RATIO + CURRENT_RATIO) / ALL_RATIO) as u16;
-		let width = (columns as u32 * PREVIEW_RATIO / ALL_RATIO) as u16;
-
-		Rect {
-			x:      x.saturating_add(PREVIEW_BORDER / 2),
-			y:      PREVIEW_MARGIN / 2,
-			width:  width.saturating_sub(PREVIEW_BORDER),
-			height: rows.saturating_sub(PREVIEW_MARGIN),
-		}
-	}
-
 	pub fn go(&mut self, path: &Path, mime: &str, show_image: bool) {
 		let kind = MimeKind::new(mime);
 		if !show_image && matches!(kind, MimeKind::Image | MimeKind::Video) {
@@ -78,7 +61,7 @@ impl Preview {
 	pub fn reset(&mut self) -> bool {
 		self.handle.take().map(|h| h.abort());
 		self.incr.fetch_add(1, Ordering::Relaxed);
-		Adaptor::image_hide(Self::rect()).ok();
+		Adaptor::image_hide(MANAGER.layout.preview_rect()).ok();
 
 		self.lock = None;
 		!matches!(
@@ -90,7 +73,7 @@ impl Preview {
 	pub fn reset_image(&mut self) -> bool {
 		self.handle.take().map(|h| h.abort());
 		self.incr.fetch_add(1, Ordering::Relaxed);
-		Adaptor::image_hide(Self::rect()).ok();
+		Adaptor::image_hide(MANAGER.layout.preview_rect()).ok();
 
 		if matches!(self.data, PreviewData::Image) {
 			self.lock = None;
@@ -109,7 +92,7 @@ impl Preview {
 	}
 
 	pub async fn image(path: &Path) -> Result<PreviewData> {
-		Adaptor::image_show(path, Self::rect()).await?;
+		Adaptor::image_show(path, MANAGER.layout.preview_rect()).await?;
 		Ok(PreviewData::Image)
 	}
 
@@ -132,14 +115,7 @@ impl Preview {
 	}
 
 	pub async fn json(path: &Path) -> Result<String> {
-		Ok(
-			external::jq(path, Self::rect().height as usize)
-				.await?
-				.lines()
-				.take(Self::rect().height as usize)
-				.collect::<Vec<_>>()
-				.join("\n"),
-		)
+		external::jq(path, MANAGER.layout.preview_height()).await
 	}
 
 	pub async fn archive(path: &Path) -> Result<String> {
@@ -147,7 +123,7 @@ impl Preview {
 			external::lsar(path)
 				.await?
 				.into_iter()
-				.take(Self::rect().height as usize)
+				.take(MANAGER.layout.preview_height())
 				.map(|f| f.name)
 				.collect::<Vec<_>>()
 				.join("\n"),
@@ -165,7 +141,7 @@ impl Preview {
 			let mut line = String::new();
 			let mut buf = String::new();
 
-			let mut i = Self::rect().height as usize;
+			let mut i = MANAGER.layout.preview_height();
 			while i > 0 && h.reader.read_line(&mut line)? > 0 {
 				if tick != incr.load(Ordering::Relaxed) {
 					bail!("Preview cancelled");