From 01606e0e6006a9d6ef3492975d573565121d306c Mon Sep 17 00:00:00 2001
From: Ahmed ElSamhaa <ahmed.elsamha@vaimo.com>
Date: Mon, 8 Apr 2024 00:14:29 +0300
Subject: [PATCH] Adds corresponding config setting for vimlike_scrolling

---
 src/config.rs           |  3 +++
 src/directory_buffer.rs | 11 +++++++----
 src/init.lua            |  5 +++++
 src/ui.rs               |  6 +++++-
 4 files changed, 20 insertions(+), 5 deletions(-)

diff --git a/src/config.rs b/src/config.rs
index db08f86..05f9998 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -353,6 +353,9 @@ pub struct GeneralConfig {
 
     #[serde(default)]
     pub global_key_bindings: KeyBindings,
+
+    #[serde(default)]
+    pub vimlike_scrolling: bool,
 }
 
 #[derive(Debug, Clone, Default, PartialEq, Eq, Serialize, Deserialize)]
diff --git a/src/directory_buffer.rs b/src/directory_buffer.rs
index cf6a5c1..b25798a 100644
--- a/src/directory_buffer.rs
+++ b/src/directory_buffer.rs
@@ -18,7 +18,12 @@ impl ScrollState {
         self.current_focus = current_focus;
     }
 
-    pub fn calc_skipped_rows(&mut self, height: usize, total: usize) -> usize {
+    pub fn calc_skipped_rows(
+        &mut self,
+        height: usize,
+        total: usize,
+        vimlike_scrolling: bool,
+    ) -> usize {
         let current_focus = self.current_focus;
         let last_focus = self.last_focus;
         let first_visible_row = self.skipped_rows;
@@ -26,9 +31,7 @@ impl ScrollState {
         let end_cushion_row = (first_visible_row + height)
             .saturating_sub(ScrollState::PREVIEW_CUSHION + 1);
 
-        let vim_scrolling_enabled = true;
-
-        if !vim_scrolling_enabled {
+        if !vimlike_scrolling {
             height * (self.current_focus / height.max(1))
         } else if last_focus == None {
             // Just entered the directory
diff --git a/src/init.lua b/src/init.lua
index a36ddb7..48a5f54 100644
--- a/src/init.lua
+++ b/src/init.lua
@@ -91,6 +91,11 @@ xplr.config.general.enable_recover_mode = false
 -- Type: boolean
 xplr.config.general.hide_remaps_in_help_menu = false
 
+-- Set it to `true` if you want vim-like scrolling.
+--
+-- Type: boolean
+xplr.config.general.vimlike_scrolling = false
+
 -- Set it to `true` if you want the cursor to stay in the same position when
 -- the focus is on the first path and you navigate to the previous path
 -- (by pressing `up`/`k`), or when the focus is on the last path and you
diff --git a/src/ui.rs b/src/ui.rs
index 838b1ef..2f92c6e 100644
--- a/src/ui.rs
+++ b/src/ui.rs
@@ -737,7 +737,11 @@ fn draw_table(
         .directory_buffer
         .as_mut()
         .map(|dir| {
-            dir.scroll_state.skipped_rows = dir.scroll_state.calc_skipped_rows(height, dir.total);
+            dir.scroll_state.skipped_rows = dir.scroll_state.calc_skipped_rows(
+                height,
+                dir.total,
+                app.config.general.vimlike_scrolling,
+            );
             dir.nodes
                 .iter()
                 .enumerate()