From 27b05c1082790e33e072e94822522eaea1753903 Mon Sep 17 00:00:00 2001
From: Can Celik <ogulcancelik@gmail.com>
Date: Thu, 3 Sep 2026 19:18:53 +0300
Subject: fix(client): batch host palette updates (#3580)

---
 src/client/shell/input.rs | 22 +++++++++++++++++++---
 1 file changed, 19 insertions(+), 3 deletions(-)

(limited to 'src/client/shell/input.rs')

diff --git a/src/client/shell/input.rs b/src/client/shell/input.rs
index d3af1480..d2ca3a82 100644
--- a/src/client/shell/input.rs
+++ b/src/client/shell/input.rs
@@ -58,6 +58,24 @@ fn host_theme_update(event: &RawInputEvent) -> Option<crate::protocol::ClientHos
     }
 }
 
+fn push_host_theme_update(
+    requests: &mut Vec<ClientMessage>,
+    update: crate::protocol::ClientHostThemeUpdate,
+) {
+    if let crate::protocol::ClientHostThemeUpdate::PaletteColors(colors) = &update {
+        if let Some(ClientMessage::ClientShellHostTheme {
+            update: crate::protocol::ClientHostThemeUpdate::PaletteColors(pending),
+        }) = requests.last_mut()
+        {
+            if pending.len() + colors.len() <= 256 {
+                pending.extend_from_slice(colors);
+                return;
+            }
+        }
+    }
+    requests.push(ClientMessage::ClientShellHostTheme { update });
+}
+
 impl ClientShellState {
     pub(crate) fn host_keyboard_report_all_requested(&self) -> bool {
         matches!(
@@ -142,9 +160,7 @@ impl ClientShellState {
         }
         for event in events {
             if let Some(update) = host_theme_update(&event) {
-                outcome
-                    .requests
-                    .push(ClientMessage::ClientShellHostTheme { update });
+                push_host_theme_update(&mut outcome.requests, update);
             }
             match event {
                 RawInputEvent::Key(key) => self.handle_key(key, &mut outcome),
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