From 95a82c0d69c12c383acaf5c5ce14082871e63989 Mon Sep 17 00:00:00 2001
From: Lysander Treumann <lysander.treumann@gmx.de>
Date: Tue, 21 Apr 2026 15:01:27 +0200
Subject: [PATCH] Changes behavior of the panel/dock size slider - from: new
 size is committed as soon as the slider position is changed (triggers
 panel/dock restart), - to: new size is committed only when slider is
 released.

---
 cosmic-settings/src/pages/desktop/panel/inner.rs | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/cosmic-settings/src/pages/desktop/panel/inner.rs b/cosmic-settings/src/pages/desktop/panel/inner.rs
index 77d2d9b..9974e54 100644
--- a/cosmic-settings/src/pages/desktop/panel/inner.rs
+++ b/cosmic-settings/src/pages/desktop/panel/inner.rs
@@ -24,6 +24,7 @@ pub struct PageInner {
     pub(crate) panel_config: Option<CosmicPanelConfig>,
     pub opacity: f32,
     pub opacity_changing: bool,
+    pub size: PanelSize,
     pub outputs: Vec<String>,
     pub anchors: Vec<String>,
     pub backgrounds: Vec<String>,
@@ -41,6 +42,7 @@ impl Default for PageInner {
             panel_config: Option::default(),
             opacity: 0.0,
             opacity_changing: false,
+            size: PanelSize::M,
             outputs: vec![fl!("all-displays")],
             anchors: vec![
                 Anchor(PanelAnchor::Left).to_string(),
@@ -207,7 +209,7 @@ pub(crate) fn style<
                         text::body(fl!("small")).into(),
                         slider(
                             0..=4,
-                            match panel_config.size {
+                            match inner.size {
                                 PanelSize::XS => 0,
                                 PanelSize::S => 1,
                                 PanelSize::M => 2,
@@ -229,6 +231,7 @@ pub(crate) fn style<
                                 }
                             },
                         )
+                        .on_release(Message::PanelSizeCommit)
                         .width(Length::Fill)
                         .apply(cosmic::widget::container)
                         .max_width(250)
@@ -420,6 +423,7 @@ pub enum Message {
     Output(usize),
     AnchorGap(bool),
     PanelSize(PanelSize),
+    PanelSizeCommit,
     Appearance(usize),
     ExtendToEdge(bool),
     OpacityRequest(f32),
@@ -500,6 +504,7 @@ impl PageInner {
                     if let Err(err) = default.write_entry(config) {
                         tracing::error!(?err, "Error resetting panel config.");
                     }
+                    self.size.clone_from(&default.size);
                     self.system_default = Some(default.clone());
                     self.panel_config.clone_from(&self.system_default);
                 } else {
@@ -598,7 +603,10 @@ impl PageInner {
                 _ = panel_config.set_border_radius(helper, new_radius).unwrap();
             }
             Message::PanelSize(size) => {
-                _ = panel_config.set_size(helper, size);
+                self.size = size;
+            }
+            Message::PanelSizeCommit => {
+                _ = panel_config.set_size(helper, self.size.clone());
                 // Reset any size overrides the user might have set
                 _ = panel_config.set_size_center(helper, None);
                 _ = panel_config.set_size_wings(helper, None);
@@ -661,6 +669,7 @@ impl PageInner {
                 }
             }
             Message::PanelConfig(c) => {
+                self.size = c.size.clone();
                 self.panel_config = Some(*c);
                 return Task::none();
             }