From 8b606ac464ec5fa3979ab73fef4d29733d389760 Mon Sep 17 00:00:00 2001
From: Sebastian Thiel <sebastian.thiel@icloud.com>
Date: Mon, 15 Feb 2021 14:27:43 +0800
Subject: Add bindings 'H' and 'G' to go to the top/bottom of any pane

Fixes #78
---
 CHANGELOG.md                     | 5 +++++
 src/interactive/app/eventloop.rs | 8 +++++++-
 src/interactive/app/handlers.rs  | 6 +++++-
 src/interactive/widgets/help.rs  | 6 +++++-
 src/interactive/widgets/mark.rs  | 4 +++-
 5 files changed, 25 insertions(+), 4 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index f191765..9032aed 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,8 @@
+#### v2.11.0
+
+* Add binding capital 'H' to go to the top of any pane/list
+* Add binding capital 'G' to go to the bottom of any pane/list
+
 #### v2.10.10 - Fix --version flag
 
 It looks like the latest BETAs of clap removed setting the version implicitly.
diff --git a/src/interactive/app/eventloop.rs b/src/interactive/app/eventloop.rs
index fbea68c..ed7c2ac 100644
--- a/src/interactive/app/eventloop.rs
+++ b/src/interactive/app/eventloop.rs
@@ -110,7 +110,11 @@ impl AppState {
                     self.dispatch_to_mark_pane(key, window, traversal, *display, terminal)
                 }
                 FocussedPane::Help => {
-                    window.help_pane.as_mut().expect("help pane").key(key);
+                    window
+                        .help_pane
+                        .as_mut()
+                        .expect("help pane")
+                        .process_events(key);
                 }
                 FocussedPane::Main => match key {
                     Char('O') => self.open_that(traversal),
@@ -138,6 +142,8 @@ impl AppState {
                     Char('o') | Char('l') | Char('\n') | Right => {
                         self.enter_node_with_traversal(traversal)
                     }
+                    Char('H') => self.change_entry_selection(CursorDirection::ToTop),
+                    Char('G') => self.change_entry_selection(CursorDirection::ToBottom),
                     Ctrl('u') | PageUp => self.change_entry_selection(CursorDirection::PageUp),
                     Char('k') | Up => self.change_entry_selection(CursorDirection::Up),
                     Char('j') | Down => self.change_entry_selection(CursorDirection::Down),
diff --git a/src/interactive/app/handlers.rs b/src/interactive/app/handlers.rs
index e940997..2360aae 100644
--- a/src/interactive/app/handlers.rs
+++ b/src/interactive/app/handlers.rs
@@ -29,12 +29,16 @@ pub enum CursorDirection {
     Down,
     Up,
     PageUp,
+    ToTop,
+    ToBottom,
 }
 
 impl CursorDirection {
     pub fn move_cursor(&self, n: usize) -> usize {
         use CursorDirection::*;
         match self {
+            ToTop => 0,
+            ToBottom => usize::MAX,
             Down => n.saturating_add(1),
             Up => n.saturating_sub(1),
             PageDown => n.saturating_add(10),
@@ -202,7 +206,7 @@ impl AppState {
     ) where
         B: Backend,
     {
-        let res = window.mark_pane.take().and_then(|p| p.key(key));
+        let res = window.mark_pane.take().and_then(|p| p.process_events(key));
         window.mark_pane = match res {
             Some((pane, mode)) => match mode {
                 Some(MarkMode::Delete) => {
diff --git a/src/interactive/widgets/help.rs b/src/interactive/widgets/help.rs
index de0dd1b..c7574cc 100644
--- a/src/interactive/widgets/help.rs
+++ b/src/interactive/widgets/help.rs
@@ -33,8 +33,10 @@ fn margin(r: Rect, margin: u16) -> Rect {
 }
 
 impl HelpPane {
-    pub fn key(&mut self, key: Key) {
+    pub fn process_events(&mut self, key: Key) {
         match key {
+            Char('H') => self.scroll_help(CursorDirection::ToTop),
+            Char('G') => self.scroll_help(CursorDirection::ToBottom),
             Ctrl('u') | PageUp => self.scroll_help(CursorDirection::PageUp),
             Char('k') | Up => self.scroll_help(CursorDirection::Up),
             Char('j') | Down => self.scroll_help(CursorDirection::Down),
@@ -120,6 +122,8 @@ impl HelpPane {
                 hotkey("<Page Down>", "^", None);
                 hotkey("Ctrl + u", "move up 10 entries at once", None);
                 hotkey("<Page Up>", "^", None);
+                hotkey("H", "Move to the top of the entries list", None);
+                hotkey("G", "Move to the bottomw of the entries list", None);
                 spacer();
             }
             title("Keys for display");
diff --git a/src/interactive/widgets/mark.rs b/src/interactive/widgets/mark.rs
index cdae961..b165415 100644
--- a/src/interactive/widgets/mark.rs
+++ b/src/interactive/widgets/mark.rs
@@ -102,13 +102,15 @@ impl MarkPane {
     pub fn marked(&self) -> &EntryMarkMap {
         &self.marked
     }
-    pub fn key(mut self, key: Key) -> Option<(Self, Option<MarkMode>)> {
+    pub fn process_events(mut self, key: Key) -> Option<(Self, Option<MarkMode>)> {
         let action = None;
         match key {
             Ctrl('r') => return self.prepare_deletion(),
             Char('x') | Char('d') | Char(' ') => {
                 return self.remove_selected().map(|s| (s, action))
             }
+            Char('H') => self.change_selection(CursorDirection::ToTop),
+            Char('G') => self.change_selection(CursorDirection::ToBottom),
             Ctrl('u') | PageUp => self.change_selection(CursorDirection::PageUp),
             Char('k') | Up => self.change_selection(CursorDirection::Up),
             Char('j') | Down => self.change_selection(CursorDirection::Down),
-- 
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