lesavka: stabilize diagnostics scrolling

client/Cargo.toml

@@ -4,7 +4,7 @@ path                    = "src/main.rs"
 
 [package]
 name                    = "lesavka_client"
-version                 = "0.11.23"
+version                 = "0.11.24"
 edition                 = "2024"
 
 [dependencies]

client/src/launcher/ui.rs

@@ -1359,7 +1359,12 @@ pub fn run_gui_launcher(server_addr: String) -> Result<()> {
                 let widgets = widgets.clone();
                 let diagnostics_popout = Rc::clone(&diagnostics_popout);
                 widgets.diagnostics_popout_button.connect_clicked(move |_| {
-                    open_diagnostics_popout(&app, &diagnostics_popout, &widgets.diagnostics_buffer);
+                    open_diagnostics_popout(
+                        &app,
+                        &diagnostics_popout,
+                        &widgets.diagnostics_popout_scroll,
+                        &widgets.diagnostics_buffer,
+                    );
                     widgets
                         .status_label
                         .set_text("Diagnostics report moved into its own window.");

client/src/launcher/ui_components.rs

@@ -54,6 +54,7 @@ pub struct LauncherWidgets {
     pub diagnostics_log: Rc<RefCell<DiagnosticsLog>>,
     pub diagnostics_buffer: gtk::TextBuffer,
     pub diagnostics_scroll: gtk::ScrolledWindow,
+    pub diagnostics_popout_scroll: Rc<RefCell<Option<gtk::ScrolledWindow>>>,
     pub session_log_buffer: gtk::TextBuffer,
     pub session_log_view: gtk::TextView,
     pub summary: SummaryWidgets,
@@ -620,12 +621,14 @@ pub fn build_launcher_view(
         state.breakout_size_options(1),
         state.breakout_size_preset(1),
     );
+    let diagnostics_popout_scroll = Rc::new(RefCell::new(None));
 
     let widgets = LauncherWidgets {
         status_label: status_label.clone(),
         diagnostics_log: diagnostics_log.clone(),
         diagnostics_buffer: diagnostics_buffer.clone(),
         diagnostics_scroll: diagnostics_scroll.clone(),
+        diagnostics_popout_scroll: diagnostics_popout_scroll.clone(),
         session_log_buffer: session_log_buffer.clone(),
         session_log_view: session_log_view.clone(),
         summary: SummaryWidgets {

client/src/launcher/ui_runtime.rs

@@ -948,15 +948,21 @@ pub fn refresh_diagnostics_report(
     child_running: bool,
 ) {
     let diagnostics_adjustment = widgets.diagnostics_scroll.vadjustment();
+    let previous_value = diagnostics_adjustment.value();
     let previous_max =
         (diagnostics_adjustment.upper() - diagnostics_adjustment.page_size()).max(0.0);
-    let was_at_bottom =
+    let was_at_bottom = previous_max <= 0.0 || previous_value >= (previous_max - 4.0);
-        previous_max <= 0.0 || diagnostics_adjustment.value() >= (previous_max - 4.0);
+    let popout_adjustment = widgets
-    let previous_ratio = if previous_max > 0.0 {
+        .diagnostics_popout_scroll
-        (diagnostics_adjustment.value() / previous_max).clamp(0.0, 1.0)
+        .borrow()
-    } else {
+        .as_ref()
-        0.0
+        .map(|scroll| scroll.vadjustment());
-    };
+    let popout_state = popout_adjustment.as_ref().map(|adjustment| {
+        let previous_value = adjustment.value();
+        let previous_max = (adjustment.upper() - adjustment.page_size()).max(0.0);
+        let was_at_bottom = previous_max <= 0.0 || previous_value >= (previous_max - 4.0);
+        (adjustment.clone(), previous_value, was_at_bottom)
+    });
     let mut snapshot = SnapshotReport::from_state(
         state,
         &widgets.diagnostics_log.borrow(),
@@ -976,9 +982,18 @@ pub fn refresh_diagnostics_report(
         let target = if was_at_bottom {
             max
         } else {
-            (previous_ratio * max).clamp(0.0, max)
+            previous_value.min(max)
         };
         diagnostics_adjustment.set_value(target);
+        if let Some((adjustment, previous_value, was_at_bottom)) = popout_state {
+            let max = (adjustment.upper() - adjustment.page_size()).max(0.0);
+            let target = if was_at_bottom {
+                max
+            } else {
+                previous_value.min(max)
+            };
+            adjustment.set_value(target);
+        }
     });
 }
 
@@ -987,20 +1002,29 @@ pub fn open_session_log_popout(
     handle: &Rc<RefCell<Option<gtk::ApplicationWindow>>>,
     buffer: &gtk::TextBuffer,
 ) {
-    open_text_buffer_popout(app, handle, buffer, "Lesavka Log", "Copy Log");
+    open_text_buffer_popout(app, handle, None, buffer, "Lesavka Log", "Copy Log");
 }
 
 pub fn open_diagnostics_popout(
     app: &gtk::Application,
     handle: &Rc<RefCell<Option<gtk::ApplicationWindow>>>,
+    scroll_handle: &Rc<RefCell<Option<gtk::ScrolledWindow>>>,
     buffer: &gtk::TextBuffer,
 ) {
-    open_text_buffer_popout(app, handle, buffer, "Lesavka Diagnostics", "Copy Report");
+    open_text_buffer_popout(
+        app,
+        handle,
+        Some(scroll_handle),
+        buffer,
+        "Lesavka Diagnostics",
+        "Copy Report",
+    );
 }
 
 fn open_text_buffer_popout(
     app: &gtk::Application,
     handle: &Rc<RefCell<Option<gtk::ApplicationWindow>>>,
+    scroll_handle: Option<&Rc<RefCell<Option<gtk::ScrolledWindow>>>>,
     buffer: &gtk::TextBuffer,
     title: &str,
     copy_button_label: &str,
@@ -1041,6 +1065,9 @@ fn open_text_buffer_popout(
         .vexpand(true)
         .child(&view)
         .build();
+    if let Some(scroll_handle) = scroll_handle {
+        *scroll_handle.borrow_mut() = Some(scroll.clone());
+    }
     root.append(&scroll);
     window.set_child(Some(&root));
     window.maximize();
@@ -1054,8 +1081,12 @@ fn open_text_buffer_popout(
 
     {
         let handle = Rc::clone(handle);
+        let scroll_handle = scroll_handle.cloned();
         window.connect_close_request(move |_| {
             handle.borrow_mut().take();
+            if let Some(scroll_handle) = &scroll_handle {
+                scroll_handle.borrow_mut().take();
+            }
             glib::Propagation::Proceed
         });
     }
@@ -1115,6 +1146,7 @@ pub fn shutdown_launcher_runtime(
     }
 
     if let Some(window) = diagnostics_popout.borrow_mut().take() {
+        widgets.diagnostics_popout_scroll.borrow_mut().take();
         window.set_child(Option::<&gtk::Widget>::None);
         window.hide();
     }

common/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name                    = "lesavka_common"
-version                 = "0.11.23"
+version                 = "0.11.24"
 edition                 = "2024"
 build                   = "build.rs"
 

common/src/cli.rs

@@ -17,6 +17,6 @@ mod tests {
 
     #[test]
     fn banner_includes_version() {
-        assert_eq!(banner("0.11.23"), "lesavka-common CLI (v0.11.23)");
+        assert_eq!(banner("0.11.24"), "lesavka-common CLI (v0.11.24)");
     }
 }

server/Cargo.toml

@@ -10,7 +10,7 @@ bench                   = false
 
 [package]
 name                    = "lesavka_server"
-version                 = "0.11.23"
+version                 = "0.11.24"
 edition                 = "2024"
 autobins                = false