feat: add change case vim input actions (#3233)

yazi-config/preset/keymap-default.toml

@@ -301,9 +301,10 @@ keymap = [
 	{ on = "p", run = "paste",                                             desc = "Paste copied characters after the cursor" },
 	{ on = "P", run = "paste --before",                                    desc = "Paste copied characters before the cursor" },
 
-	# Undo/Redo
+	# Undo/Redo/Change case
-	{ on = "u",     run = "undo", desc = "Undo the last operation" },
+	{ on = "u",  run = [ "undo", "lowercase"], desc = "Undo the last operation or Lowercase selected characters" },
 	{ on = "<C-r>", run = "redo", desc = "Redo the last operation" },
+	{ on = "U", run = "uppercase", desc = "Uppercase selected characters" },
 
 	# Help
 	{ on = "~",    run = "help", desc = "Open help" },

yazi-widgets/src/input/commands/case.rs

@@ -0,0 +1,24 @@
+use anyhow::Result;
+use yazi_macro::{act, render, succ};
+use yazi_parser::VoidOpt;
+use yazi_shared::data::Data;
+
+use crate::input::{Input, op::InputOp};
+
+impl Input {
+	pub fn uppercase(&mut self, _: VoidOpt) -> Result<Data> { self.apply_case(true) }
+
+	pub fn lowercase(&mut self, _: VoidOpt) -> Result<Data> { self.apply_case(false) }
+
+	fn apply_case(&mut self, uppercase: bool) -> Result<Data> {
+		match self.snap().op {
+			InputOp::Select(start) => {
+				self.snap_mut().op = InputOp::Case(uppercase, start);
+				render!(self.handle_op(self.snap().cursor, true));
+				act!(r#move, self)?;
+			}
+			_ => {}
+		}
+		succ!();
+	}
+}

yazi-widgets/src/input/commands/commands.rs

@@ -35,6 +35,9 @@ impl Input {
 
 				on!(undo);
 				on!(redo);
+
+				on!(uppercase);
+				on!(lowercase);
 			}
 			InputMode::Insert => {
 				on!(visual);

yazi-widgets/src/input/commands/mod.rs

@@ -1 +1 @@
-yazi_macro::mod_flat!(backspace backward commands complete delete escape forward insert kill paste r#move r#type redo replace undo visual yank);
+yazi_macro::mod_flat!(backspace backward commands complete delete escape forward insert kill paste r#move r#type redo replace undo visual yank case);

yazi-widgets/src/input/commands/undo.rs

@@ -3,10 +3,14 @@ use yazi_macro::{act, render, succ};
 use yazi_parser::VoidOpt;
 use yazi_shared::data::Data;
 
-use crate::input::{Input, InputMode};
+use crate::input::{Input, InputMode, InputOp};
 
 impl Input {
 	pub fn undo(&mut self, _: VoidOpt) -> Result<Data> {
+		if let InputOp::Select(_) = self.snap().op {
+			succ!();
+		}
+
 		if !self.snaps.undo() {
 			succ!();
 		}

yazi-widgets/src/input/input.rs

@@ -50,6 +50,20 @@ impl Input {
 				snap.op = InputOp::None;
 				futures::executor::block_on(CLIPBOARD.set(yanked));
 			}
+			InputOp::Case(upper, _) => {
+				let range = snap.op.range(cursor, include).unwrap();
+				let Range { start, end } = snap.idx(range.start)..snap.idx(range.end);
+
+				if let (Some(start), Some(end)) = (start, end) {
+					let selected = &snap.value[start..end];
+					let replaced = if upper { selected.to_uppercase() } else { selected.to_lowercase() };
+					snap.value.replace_range(start..end, &replaced);
+				}
+
+				snap.op = InputOp::None;
+				snap.mode = InputMode::Normal;
+				snap.cursor = range.start;
+			}
 		};
 
 		snap.cursor = snap.count().saturating_sub(snap.mode.delta()).min(snap.cursor);

yazi-widgets/src/input/op.rs

@@ -7,6 +7,7 @@ pub enum InputOp {
 	Select(usize),
 	Delete(bool, bool, usize), // cut, insert, start
 	Yank(usize),
+	Case(bool, usize), //  upper, start
 }
 
 impl InputOp {
@@ -17,6 +18,7 @@ impl InputOp {
 			Self::Select(s) => Some(*s),
 			Self::Delete(.., s) => Some(*s),
 			Self::Yank(s) => Some(*s),
+			Self::Case(.., s) => Some(*s),
 		}
 	}