Added support for home/end cursor movement

src/action.rs

@@ -14,7 +14,7 @@ pub enum Dir {
 pub enum Action {
     Char(char),                   // Insert a character
     Indent(bool),                 // Indent (indent vs deindent)
-    Move(Dir, bool, bool, bool),  // Move the cursor (dir, page, retain_base, word)
+    Move(Dir, Dist, bool, bool),  // Move the cursor (dir, page, retain_base, word)
     PaneMove(Dir),                // Move panes
     PaneOpen(Dir),                // Create a new pane
     PaneClose,                    // Close the current pane
@@ -38,6 +38,14 @@ pub enum Action {
     Save,                         // Save the current buffer
 }
 
+/// How far should movement go?
+#[derive(Clone, Debug)]
+pub enum Dist {
+    Char,
+    Page,
+    Doc,
+}
+
 #[derive(Debug)]
 pub enum Event {
     // The incoming event is an action generated by some other internal component.
@@ -162,17 +170,19 @@ impl RawEvent {
         let retain_base = modifiers.contains(KeyModifiers::SHIFT);
         let word = modifiers.contains(KeyModifiers::CONTROL);
 
-        let (dir, page) = match code {
-            KeyCode::PageUp => (Dir::Up, true),
-            KeyCode::PageDown => (Dir::Down, true),
-            KeyCode::Left => (Dir::Left, false),
-            KeyCode::Right => (Dir::Right, false),
-            KeyCode::Up => (Dir::Up, false),
-            KeyCode::Down => (Dir::Down, false),
+        let (dir, dist) = match code {
+            KeyCode::Home => (Dir::Up, Dist::Doc),
+            KeyCode::End => (Dir::Down, Dist::Doc),
+            KeyCode::PageUp => (Dir::Up, Dist::Page),
+            KeyCode::PageDown => (Dir::Down, Dist::Page),
+            KeyCode::Left => (Dir::Left, Dist::Char),
+            KeyCode::Right => (Dir::Right, Dist::Char),
+            KeyCode::Up => (Dir::Up, Dist::Char),
+            KeyCode::Down => (Dir::Down, Dist::Char),
             _ => return None,
         };
 
-        Some(Action::Move(dir, page, retain_base, word))
+        Some(Action::Move(dir, dist, retain_base, word))
     }
 
     pub fn to_select_token(&self) -> Option<Action> {

src/main.rs

@@ -6,7 +6,7 @@ mod theme;
 mod ui;
 
 use crate::{
-    action::{Action, Dir, Event},
+    action::{Action, Dir, Dist, Event},
     state::State,
     terminal::{Color, Terminal, TerminalEvent},
     ui::{Element as _, Visual as _},

src/ui/doc.rs

@@ -269,7 +269,7 @@ impl Search {
                 return Ok(Resp::end(None));
             }
             Some(Action::Go) => return Ok(Resp::end(None)),
-            Some(Action::Move(dir, false, false, false)) => {
+            Some(Action::Move(dir, Dist::Char, false, false)) => {
                 match dir {
                     Dir::Up => {
                         self.selected = (self.selected + self.results.len().saturating_sub(1))

src/ui/input.rs

@@ -78,11 +78,12 @@ impl Input {
                 self.refocus(buffer, cursor_id);
                 Ok(Resp::handled(None))
             }
-            Some(Action::Move(dir, page, retain_base, word)) => {
-                let dist = if page {
-                    self.last_size.map(|s| s.saturating_sub(3).max(1))
-                } else {
-                    [1, 1]
+            Some(Action::Move(dir, dist, retain_base, word)) => {
+                let dist = match dist {
+                    Dist::Char => [1, 1],
+                    Dist::Page => self.last_size.map(|s| s.saturating_sub(3).max(1)),
+                    // TODO: Don't just use an arbitrary very large number
+                    Dist::Doc => [1_000_000_000; 2],
                 };
                 buffer.move_cursor(cursor_id, dir, dist, retain_base, word);
                 self.refocus(buffer, cursor_id);

src/ui/mod.rs

@@ -14,6 +14,8 @@ pub use self::{
     status::Status,
 };
 
+use super::*;
+
 use crate::{
     Action, Dir, Event, State,
     terminal::{Color, Rect},
@@ -149,7 +151,7 @@ impl<T> Options<T> {
 impl<T: Clone> Element<T> for Options<T> {
     fn handle(&mut self, state: &mut State, event: Event) -> Result<Resp<T>, Event> {
         match event.to_action(|e| e.to_go().or_else(|| e.to_move())) {
-            Some(Action::Move(dir, false, false, false)) => {
+            Some(Action::Move(dir, Dist::Char, false, false)) => {
                 match dir {
                     Dir::Up => {
                         self.selected =