From 63630eb18dbc2376cb9b2596314af23d4000f274 Mon Sep 17 00:00:00 2001
From: Stephan Dilly <dilly.stephan@gmail.com>
Date: Wed, 13 May 2020 16:38:48 +0200
Subject: [PATCH] cleanup

---
 src/tabs/revlog/mod.rs | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/src/tabs/revlog/mod.rs b/src/tabs/revlog/mod.rs
index f284585f..e7ce0134 100644
--- a/src/tabs/revlog/mod.rs
+++ b/src/tabs/revlog/mod.rs
@@ -112,6 +112,9 @@ impl Revlog {
             .unwrap()
             .max(1);
 
+        let page_offset =
+            usize::from(self.current_height).saturating_sub(1);
+
         self.selection = match scroll {
             ScrollType::Up => {
                 self.selection.saturating_sub(speed_int)
@@ -119,12 +122,12 @@ impl Revlog {
             ScrollType::Down => {
                 self.selection.saturating_add(speed_int)
             }
-            ScrollType::PageUp => self.selection.saturating_sub(
-                usize::from(self.current_height).saturating_sub(1),
-            ),
-            ScrollType::PageDown => self.selection.saturating_add(
-                usize::from(self.current_height).saturating_sub(1),
-            ),
+            ScrollType::PageUp => {
+                self.selection.saturating_sub(page_offset)
+            }
+            ScrollType::PageDown => {
+                self.selection.saturating_add(page_offset)
+            }
             ScrollType::Home => 0,
             ScrollType::End => self.selection_max,
         };