up

src/config/keymap/exec.rs

@@ -2,7 +2,7 @@ use std::{collections::BTreeMap, fmt};
 
 use serde::{de::{self, Visitor}, Deserializer};
 
-#[derive(Debug, Default)]
+#[derive(Clone, Debug, Default)]
 pub struct Exec {
 	pub cmd:   String,
 	pub args:  Vec<String>,

src/config/keymap/key.rs

@@ -102,3 +102,60 @@ impl TryFrom<String> for Key {
 		Ok(key)
 	}
 }
+
+impl ToString for Key {
+	fn to_string(&self) -> String {
+		if let Some(c) = self.plain() {
+			return if self.shift { c.to_ascii_uppercase() } else { c }.to_string();
+		}
+
+		let mut s = "<".to_string();
+		if self.ctrl {
+			s += "C-";
+		}
+		if self.alt {
+			s += "A-";
+		}
+		if self.shift && !matches!(self.code, KeyCode::Char(_)) {
+			s += "S-";
+		}
+
+		let code = match self.code {
+			KeyCode::Char(' ') => "Space",
+			KeyCode::Backspace => "Backspace",
+			KeyCode::Enter => "Enter",
+			KeyCode::Left => "Left",
+			KeyCode::Right => "Right",
+			KeyCode::Up => "Up",
+			KeyCode::Down => "Down",
+			KeyCode::Home => "Home",
+			KeyCode::End => "End",
+			KeyCode::PageUp => "PageUp",
+			KeyCode::PageDown => "PageDown",
+			KeyCode::Tab => "Tab",
+			KeyCode::Delete => "Delete",
+			KeyCode::Insert => "Insert",
+			KeyCode::F(1) => "F1",
+			KeyCode::F(2) => "F2",
+			KeyCode::F(3) => "F3",
+			KeyCode::F(4) => "F4",
+			KeyCode::F(5) => "F5",
+			KeyCode::F(6) => "F6",
+			KeyCode::F(7) => "F7",
+			KeyCode::F(8) => "F8",
+			KeyCode::F(9) => "F9",
+			KeyCode::F(10) => "F10",
+			KeyCode::F(11) => "F11",
+			KeyCode::F(12) => "F12",
+			KeyCode::Esc => "Esc",
+
+			KeyCode::Char(c) => {
+				s.push(if self.shift { c.to_ascii_uppercase() } else { c });
+				""
+			}
+			_ => "Unknown",
+		};
+
+		s + code + ">"
+	}
+}

src/config/keymap/keymap.rs

@@ -3,8 +3,8 @@ use serde::{Deserialize, Deserializer};
 use super::{Exec, Key};
 use crate::config::MERGED_KEYMAP;
 
-#[derive(Debug, Deserialize)]
-pub struct Single {
+#[derive(Clone, Debug, Deserialize)]
+pub struct Control {
 	pub on:   Vec<Key>,
 	#[serde(deserialize_with = "Exec::deserialize")]
 	pub exec: Vec<Exec>,
@@ -12,10 +12,19 @@ pub struct Single {
 
 #[derive(Debug)]
 pub struct Keymap {
-	pub manager: Vec<Single>,
-	pub tasks:   Vec<Single>,
-	pub select:  Vec<Single>,
-	pub input:   Vec<Single>,
+	pub manager: Vec<Control>,
+	pub tasks:   Vec<Control>,
+	pub select:  Vec<Control>,
+	pub input:   Vec<Control>,
+}
+
+#[derive(Debug, PartialEq, Eq, Hash, Clone, Copy)]
+pub enum KeymapLayer {
+	Manager,
+	Tasks,
+	Select,
+	Input,
+	Which,
 }
 
 impl<'de> Deserialize<'de> for Keymap {
@@ -32,7 +41,7 @@ impl<'de> Deserialize<'de> for Keymap {
 		}
 		#[derive(Deserialize)]
 		struct Inner {
-			keymap: Vec<Single>,
+			keymap: Vec<Control>,
 		}
 
 		let shadow = Shadow::deserialize(deserializer)?;
@@ -47,4 +56,15 @@ impl<'de> Deserialize<'de> for Keymap {
 
 impl Keymap {
 	pub fn new() -> Self { toml::from_str(&MERGED_KEYMAP).unwrap() }
+
+	#[inline]
+	pub fn get(&self, layer: KeymapLayer) -> &Vec<Control> {
+		match layer {
+			KeymapLayer::Manager => &self.manager,
+			KeymapLayer::Tasks => &self.tasks,
+			KeymapLayer::Select => &self.select,
+			KeymapLayer::Input => &self.input,
+			KeymapLayer::Which => unreachable!(),
+		}
+	}
 }

src/core/event.rs

@@ -5,16 +5,17 @@ use crossterm::event::KeyEvent;
 use tokio::sync::{mpsc::UnboundedSender, oneshot};
 
 use super::{files::FilesOp, input::InputOpt, manager::PreviewData, select::SelectOpt};
-use crate::config::open::Opener;
+use crate::config::{keymap::{Control, KeymapLayer}, open::Opener};
 
 static mut TX: Option<UnboundedSender<Event>> = None;
 
 pub enum Event {
 	Quit,
-	Stop(bool, Option<oneshot::Sender<()>>),
 	Key(KeyEvent),
 	Render(String),
 	Resize(u16, u16),
+	Stop(bool, Option<oneshot::Sender<()>>),
+	Ctrl(Control, KeymapLayer),
 
 	// Manager
 	Cd(PathBuf),
@@ -57,10 +58,6 @@ impl Event {
 
 #[macro_export]
 macro_rules! emit {
-	(Stop($state:expr)) => {{
-		let (tx, rx) = tokio::sync::oneshot::channel();
-		$crate::core::Event::Stop($state, Some(tx)).wait(rx)
-	}};
 	(Key($key:expr)) => {
 		$crate::core::Event::Key($key).emit();
 	};
@@ -70,6 +67,13 @@ macro_rules! emit {
 	(Resize($cols:expr, $rows:expr)) => {
 		$crate::core::Event::Resize($cols, $rows).emit();
 	};
+	(Stop($state:expr)) => {{
+		let (tx, rx) = tokio::sync::oneshot::channel();
+		$crate::core::Event::Stop($state, Some(tx)).wait(rx)
+	}};
+	(Ctrl($exec:expr, $layer:expr)) => {
+		$crate::core::Event::Ctrl($exec, $layer).emit();
+	};
 
 	(Cd($op:expr)) => {
 		$crate::core::Event::Cd($op).emit();

src/core/mod.rs

@@ -8,6 +8,7 @@ pub mod manager;
 pub mod position;
 pub mod select;
 pub mod tasks;
+pub mod which;
 
 pub use blocker::*;
 pub use event::*;

src/core/which/mod.rs

@@ -0,0 +1,4 @@
+mod which;
+
+pub use which::*;
+

src/core/which/which.rs

@@ -0,0 +1,49 @@
+use std::mem;
+
+use crate::{config::{keymap::{Control, Key, KeymapLayer}, KEYMAP}, emit};
+
+pub struct Which {
+	layer:     KeymapLayer,
+	pub times: usize,
+	pub cands: Vec<Control>,
+
+	pub visible: bool,
+}
+
+impl Default for Which {
+	fn default() -> Self {
+		Self { layer: KeymapLayer::Manager, times: 0, cands: Default::default(), visible: false }
+	}
+}
+
+impl Which {
+	pub fn show(&mut self, key: &Key, layer: KeymapLayer) -> bool {
+		self.layer = layer;
+		self.times = 1;
+		self.cands = KEYMAP
+			.get(layer)
+			.into_iter()
+			.filter(|s| !s.on.is_empty() && s.on[0] == *key)
+			.cloned()
+			.collect();
+		self.visible = true;
+		true
+	}
+
+	pub fn press(&mut self, key: Key) -> bool {
+		self.cands = mem::replace(&mut self.cands, Vec::new())
+			.into_iter()
+			.filter(|s| s.on.len() > self.times && s.on[self.times] == key)
+			.collect();
+
+		if self.cands.is_empty() {
+			self.visible = false;
+		} else if self.cands.len() == 1 {
+			self.visible = false;
+			emit!(Ctrl(self.cands.remove(0), self.layer));
+		}
+
+		self.times += 1;
+		return true;
+	}
+}

src/ui/app.rs

@@ -3,7 +3,7 @@ use crossterm::event::KeyEvent;
 use tokio::sync::oneshot::{self};
 
 use super::{root::Root, Ctx, Executor, Logs, Signals, Term};
-use crate::{config::keymap::Key, core::{files::FilesOp, Event}, emit};
+use crate::{config::keymap::{Control, Key, KeymapLayer}, core::{files::FilesOp, Event}, emit};
 
 pub struct App {
 	cx:      Ctx,
@@ -22,30 +22,17 @@ impl App {
 		while let Some(event) = app.signals.rx.recv().await {
 			match event {
 				Event::Quit => break,
-				Event::Stop(state, tx) => app.dispatch_stop(state, tx),
 				Event::Key(key) => app.dispatch_key(key),
 				Event::Render(_) => app.dispatch_render(),
 				Event::Resize(..) => app.dispatch_resize(),
+				Event::Stop(state, tx) => app.dispatch_stop(state, tx),
+				Event::Ctrl(ctrl, layer) => app.dispatch_ctrl(ctrl, layer),
 				event => app.dispatch_module(event).await,
 			}
 		}
 		Ok(())
 	}
 
-	fn dispatch_stop(&mut self, state: bool, tx: Option<oneshot::Sender<()>>) {
-		if state {
-			self.signals.stop_term(true);
-			self.term = None;
-		} else {
-			self.term = Some(Term::start().unwrap());
-			self.signals.stop_term(false);
-			emit!(Render);
-		}
-		if let Some(tx) = tx {
-			tx.send(()).ok();
-		}
-	}
-
 	fn dispatch_key(&mut self, key: KeyEvent) {
 		let key = Key::from(key);
 		if Executor::handle(&mut self.cx, key) {
@@ -71,6 +58,27 @@ impl App {
 		emit!(Render);
 	}
 
+	fn dispatch_stop(&mut self, state: bool, tx: Option<oneshot::Sender<()>>) {
+		if state {
+			self.signals.stop_term(true);
+			self.term = None;
+		} else {
+			self.term = Some(Term::start().unwrap());
+			self.signals.stop_term(false);
+			emit!(Render);
+		}
+		if let Some(tx) = tx {
+			tx.send(()).ok();
+		}
+	}
+
+	#[inline]
+	fn dispatch_ctrl(&mut self, ctrl: Control, layer: KeymapLayer) {
+		if Executor::dispatch(&mut self.cx, &ctrl.exec, layer) {
+			emit!(Render);
+		}
+	}
+
 	async fn dispatch_module(&mut self, event: Event) {
 		let manager = &mut self.cx.manager;
 		let tasks = &mut self.cx.tasks;

src/ui/context.rs

@@ -1,9 +1,10 @@
-use crate::{core::{input::Input, manager::Manager, select::Select, tasks::Tasks, Position}, misc::tty_size};
+use crate::{config::keymap::KeymapLayer, core::{input::Input, manager::Manager, select::Select, tasks::Tasks, which::Which, Position}, misc::tty_size};
 
 pub struct Ctx {
 	pub cursor: Option<(u16, u16)>,
 
 	pub manager: Manager,
+	pub which:   Which,
 	pub select:  Select,
 	pub input:   Input,
 	pub tasks:   Tasks,
@@ -15,12 +16,28 @@ impl Ctx {
 			cursor: None,
 
 			manager: Manager::new(),
-			select:  Select::default(),
-			input:   Input::default(),
+			which:   Default::default(),
+			select:  Default::default(),
+			input:   Default::default(),
 			tasks:   Tasks::start(),
 		}
 	}
 
+	#[inline]
+	pub fn layer(&self) -> KeymapLayer {
+		if self.which.visible {
+			KeymapLayer::Which
+		} else if self.input.visible {
+			KeymapLayer::Input
+		} else if self.select.visible {
+			KeymapLayer::Select
+		} else if self.tasks.visible {
+			KeymapLayer::Tasks
+		} else {
+			KeymapLayer::Manager
+		}
+	}
+
 	pub fn position(&self, pos: Position) -> Position {
 		match pos {
 			Position::Top => Position::Coords((tty_size().ws_col / 2).saturating_sub(25), 2),

src/ui/dispatcher.rs

@@ -1,52 +1,47 @@
 use super::Ctx;
-use crate::{config::{keymap::{Exec, Key, Single}, KEYMAP}, core::input::InputMode, misc::optional_bool};
+use crate::{config::{keymap::{Control, Exec, Key, KeymapLayer}, KEYMAP}, core::input::InputMode, misc::optional_bool};
 
 pub struct Executor;
 
 impl Executor {
 	pub fn handle(cx: &mut Ctx, key: Key) -> bool {
-		let layer = if cx.input.visible {
-			3
-		} else if cx.select.visible {
-			2
-		} else if cx.tasks.visible {
-			1
-		} else {
-			0
-		};
+		let layer = cx.layer();
+		if layer == KeymapLayer::Which {
+			return cx.which.press(key);
+		}
 
-		let mut render = false;
-		let mut matched = false;
-		let keymap = [&KEYMAP.manager, &KEYMAP.tasks, &KEYMAP.select, &KEYMAP.input][layer];
+		if layer == KeymapLayer::Input && cx.input.mode() == InputMode::Insert {
+			if let Some(c) = key.plain() {
+				return cx.input.type_(c);
+			}
+		}
 
-		for Single { on, exec } in keymap {
-			if on.len() < 1 || on[0] != key {
+		for Control { on, exec } in KEYMAP.get(layer) {
+			if on.is_empty() || on[0] != key {
 				continue;
 			}
 
-			matched = true;
-			for e in exec {
-				if layer == 0 {
-					render = Self::manager(cx, e) || render;
-				} else if layer == 1 {
-					render = Self::tasks(cx, e) || render;
-				} else if layer == 2 {
-					render = Self::select(cx, e) || render;
-				} else if layer == 3 {
-					if cx.input.mode() != InputMode::Insert || key.plain().is_none() {
-						render = Self::input(cx, Some(e), &key) || render;
-					} else {
-						render = Self::input(cx, None, &key) || render;
-						break;
-					}
-				}
-			}
+			return if on.len() > 1 {
+				cx.which.show(&key, layer)
+			} else {
+				Self::dispatch(cx, exec, layer)
+			};
 		}
+		false
+	}
 
-		if layer == 3 && !matched {
-			render = Self::input(cx, None, &key);
+	#[inline]
+	pub fn dispatch(cx: &mut Ctx, exec: &Vec<Exec>, layer: KeymapLayer) -> bool {
+		let mut render = false;
+		for e in exec {
+			render |= match layer {
+				KeymapLayer::Manager => Self::manager(cx, e),
+				KeymapLayer::Tasks => Self::tasks(cx, e),
+				KeymapLayer::Select => Self::select(cx, e),
+				KeymapLayer::Input => Self::input(cx, e),
+				KeymapLayer::Which => unreachable!(),
+			};
 		}
-
 		render
 	}
 
@@ -170,18 +165,7 @@ impl Executor {
 		}
 	}
 
-	fn input(cx: &mut Ctx, exec: Option<&Exec>, key: &Key) -> bool {
-		let exec = if let Some(e) = exec {
-			e
-		} else {
-			if cx.input.mode() == InputMode::Insert {
-				if let Some(c) = key.plain() {
-					return cx.input.type_(c);
-				}
-			}
-			return false;
-		};
-
+	fn input(cx: &mut Ctx, exec: &Exec) -> bool {
 		match exec.cmd.as_str() {
 			"close" => return cx.input.close(exec.named.contains_key("submit")),
 			"escape" => return cx.input.escape(),

src/ui/logs.rs

@@ -10,7 +10,7 @@ impl Logs {
 			.context("failed to get XDG base directories")?
 			.get_state_home();
 
-		let appender = tracing_appender::rolling::hourly(root, "yazi.log");
+		let appender = tracing_appender::rolling::never(root, "yazi.log");
 		let (handle, guard) = tracing_appender::non_blocking(appender);
 
 		// let filter = EnvFilter::from_default_env();

src/ui/mod.rs

@@ -11,6 +11,7 @@ mod signals;
 mod status;
 mod tasks;
 mod term;
+mod which;
 
 pub use app::*;
 pub use context::*;

src/ui/root.rs

@@ -1,6 +1,6 @@
 use ratatui::{buffer::Buffer, layout::{Constraint, Direction, Layout, Rect}, widgets::Widget};
 
-use super::{header, manager, status, tasks, Ctx, Input, Select};
+use super::{header, manager, status, tasks, which::Which, Ctx, Input, Select};
 
 pub struct Root<'a> {
 	cx: &'a mut Ctx,
@@ -35,5 +35,9 @@ impl<'a> Widget for Root<'a> {
 		} else {
 			self.cx.cursor = None;
 		}
+
+		if self.cx.which.visible {
+			Which::new(self.cx).render(area, buf);
+		}
 	}
 }

src/ui/which/layout.rs

@@ -0,0 +1,32 @@
+use ratatui::{layout, prelude::{Buffer, Constraint, Direction, Rect}, widgets::Widget};
+
+use super::Side;
+use crate::ui::Ctx;
+
+pub struct Which<'a> {
+	cx: &'a mut Ctx,
+}
+
+impl<'a> Which<'a> {
+	pub fn new(cx: &'a mut Ctx) -> Self { Self { cx } }
+}
+
+impl Widget for Which<'_> {
+	fn render(self, area: Rect, buf: &mut Buffer) {
+		let chunks = layout::Layout::default()
+			.direction(Direction::Vertical)
+			.constraints([Constraint::Percentage(50), Constraint::Percentage(50)].as_ref())
+			.split(area);
+
+		let chunks = layout::Layout::default()
+			.direction(Direction::Horizontal)
+			.constraints([Constraint::Percentage(50), Constraint::Percentage(50)].as_ref())
+			.split(chunks[1]);
+
+		let which = &self.cx.which;
+		let cands: (Vec<_>, Vec<_>) = which.cands.iter().enumerate().partition(|(i, _)| i % 2 == 0);
+
+		Side::new(which.times, cands.0).render(chunks[0], buf);
+		Side::new(which.times, cands.1).render(chunks[1], buf);
+	}
+}

src/ui/which/mod.rs

@@ -0,0 +1,5 @@
+mod layout;
+mod side;
+
+pub use layout::*;
+pub use side::*;

src/ui/which/side.rs

@@ -0,0 +1,27 @@
+use ratatui::{prelude::{Buffer, Rect}, widgets::{List, ListItem, Widget}};
+
+use crate::config::keymap::Control;
+
+pub struct Side<'a> {
+	times: usize,
+	cands: Vec<(usize, &'a Control)>,
+}
+
+impl<'a> Side<'a> {
+	pub fn new(times: usize, cands: Vec<(usize, &'a Control)>) -> Self { Self { times, cands } }
+}
+
+impl Widget for Side<'_> {
+	fn render(self, area: Rect, buf: &mut Buffer) {
+		let items = self
+			.cands
+			.into_iter()
+			.map(|(_, c)| {
+				let s = c.on[self.times..].into_iter().map(ToString::to_string).collect::<String>();
+				ListItem::new(format!("{:?}", s))
+			})
+			.collect::<Vec<_>>();
+
+		List::new(items).render(area, buf);
+	}
+}