From b1aa2723e9b10350ec4270ab6685ffe57ffe4309 Mon Sep 17 00:00:00 2001
From: Lukas Wirth <lukas@zed.dev>
Date: Thu, 18 Sep 2025 12:58:10 +0200
Subject: [PATCH] editor: Reverse range of pending selection if required
 (#38410)

cc https://github.com/zed-industries/zed/issues/38129

Release Notes:

- N/A *or* Added/Fixed/Improved ...
---
 crates/editor/src/selections_collection.rs | 23 ++++++++++++++++------
 1 file changed, 17 insertions(+), 6 deletions(-)

diff --git a/crates/editor/src/selections_collection.rs b/crates/editor/src/selections_collection.rs
index e562be10e92344c1c892878ab674cba39beb74c2..4343443ff8c4cb4e388984c9014b13ddc8726523 100644
--- a/crates/editor/src/selections_collection.rs
+++ b/crates/editor/src/selections_collection.rs
@@ -469,13 +469,24 @@ impl<'a> MutableSelectionsCollection<'a> {
     }
 
     pub(crate) fn set_pending_anchor_range(&mut self, range: Range<Anchor>, mode: SelectMode) {
+        let buffer = self.buffer.read(self.cx).snapshot(self.cx);
         self.collection.pending = Some(PendingSelection {
-            selection: Selection {
-                id: post_inc(&mut self.collection.next_selection_id),
-                start: range.start,
-                end: range.end,
-                reversed: false,
-                goal: SelectionGoal::None,
+            selection: {
+                let mut start = range.start;
+                let mut end = range.end;
+                let reversed = if start.cmp(&end, &buffer).is_gt() {
+                    mem::swap(&mut start, &mut end);
+                    true
+                } else {
+                    false
+                };
+                Selection {
+                    id: post_inc(&mut self.collection.next_selection_id),
+                    start,
+                    end,
+                    reversed,
+                    goal: SelectionGoal::None,
+                }
             },
             mode,
         });