From ea24a106e943473637c5cadc1a48914a6b8dbd19 Mon Sep 17 00:00:00 2001
From: Christian Duerr <contact@christianduerr.com>
Date: Fri, 26 Feb 2021 19:54:09 +0000
Subject: Fix vi cursor after leaving search

This resolves an issue which caused the vi cursor position to be
incorrect when leaving the search with the vi cursor at the far bottom.

Previously this could lead to the vi cursor disappearing completely,
when starting a vi mode search that has a match on the last line while
the original vi mode cursor was right above it.

Fixes #4833.
---
 alacritty/src/event.rs | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

(limited to 'alacritty/src')

diff --git a/alacritty/src/event.rs b/alacritty/src/event.rs
index de3be146..bed4d5fe 100644
--- a/alacritty/src/event.rs
+++ b/alacritty/src/event.rs
@@ -1400,12 +1400,14 @@ impl<N: Notify + OnResize> Processor<N> {
     {
         // Compute cursor positions before resize.
         let num_lines = terminal.screen_lines();
+        let vi_mode = terminal.mode().contains(TermMode::VI);
         let cursor_at_bottom = terminal.grid().cursor.point.line + 1 == num_lines;
-        let origin_at_bottom = if terminal.mode().contains(TermMode::VI) {
+        let origin_at_bottom = if vi_mode {
             terminal.vi_mode_cursor.point.line == num_lines - 1
         } else {
             self.search_state.direction == Direction::Left
         };
+        let old_display_offset = terminal.grid().display_offset();
 
         self.display.handle_update(
             terminal,
@@ -1416,14 +1418,24 @@ impl<N: Notify + OnResize> Processor<N> {
             display_update_pending,
         );
 
-        // Scroll to make sure search origin is visible and content moves as little as possible.
-        if !old_is_searching && self.search_state.history_index.is_some() {
+        let new_is_searching = self.search_state.history_index.is_some();
+        if !old_is_searching && new_is_searching {
+            // Scroll on search start to make sure origin is visible with minimal viewport motion.
             let display_offset = terminal.grid().display_offset();
             if display_offset == 0 && cursor_at_bottom && !origin_at_bottom {
                 terminal.scroll_display(Scroll::Delta(1));
             } else if display_offset != 0 && origin_at_bottom {
                 terminal.scroll_display(Scroll::Delta(-1));
             }
+        } else if old_is_searching
+            && !new_is_searching
+            && old_display_offset == 0
+            && cursor_at_bottom
+            && origin_at_bottom
+            && vi_mode
+        {
+            // Pull down the vi cursor if it was moved up when the search was started.
+            terminal.vi_mode_cursor.point.line += 1;
         }
     }
 
-- 
cgit