From c19c2cbd1d7ff348ed401123a90174eb0d88d528 Mon Sep 17 00:00:00 2001
From: Jeena <hello@jeena.net>
Date: Sat, 21 Mar 2026 13:09:28 +0000
Subject: [PATCH] window: scale sidebar fonts with zoom level

---
 src/window.rs | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/src/window.rs b/src/window.rs
index e0991ed..91181c8 100644
--- a/src/window.rs
+++ b/src/window.rs
@@ -63,6 +63,7 @@ pub mod imp {
         pub current_article_id: RefCell<Option<String>>,
         pub mark_unread_guard: RefCell<bool>,
         pub pending_restore_id: RefCell<Option<String>>,
+        pub sidebar_zoom_css: std::cell::OnceCell<gtk4::CssProvider>,
     }
 
     #[glib::object_subclass]
@@ -140,6 +141,16 @@ pub mod imp {
             let zoom = settings.double("zoom-level");
             self.web_view.set_zoom_level(zoom);
 
+            // Set up sidebar font zoom CSS provider
+            let zoom_css = gtk4::CssProvider::new();
+            gtk4::style_context_add_provider_for_display(
+                &gtk4::gdk::Display::default().unwrap(),
+                &zoom_css,
+                gtk4::STYLE_PROVIDER_PRIORITY_APPLICATION,
+            );
+            self.sidebar_zoom_css.set(zoom_css).ok();
+            self.update_sidebar_zoom(zoom);
+
             // Persist sidebar width while dragging (only when visible)
             let s2 = settings.clone();
             let sidebar_weak = self.sidebar_toolbar.downgrade();
@@ -794,16 +805,26 @@ pub mod imp {
 
         // ── Zoom ──────────────────────────────────────────────────────────────
 
+        fn update_sidebar_zoom(&self, level: f64) {
+            if let Some(css) = self.sidebar_zoom_css.get() {
+                css.load_from_string(&format!(
+                    ".sidebar-content label {{ font-size: {level}em; }}"
+                ));
+            }
+        }
+
         fn zoom(&self, factor: f64) {
             let wv = &*self.web_view;
             let new_level = (wv.zoom_level() * factor).clamp(0.25, 5.0);
             wv.set_zoom_level(new_level);
+            self.update_sidebar_zoom(new_level);
             let settings = gio::Settings::new("net.jeena.FeedTheMonkey");
             settings.set_double("zoom-level", new_level).ok();
         }
 
         fn zoom_reset(&self) {
             self.web_view.set_zoom_level(1.0);
+            self.update_sidebar_zoom(1.0);
             let settings = gio::Settings::new("net.jeena.FeedTheMonkey");
             settings.set_double("zoom-level", 1.0).ok();
         }