fix: restore keyboard focus on action buttons after dismiss (v0.8.2)

After cancelling a confirmation prompt, the focused widget was removed
from the tree without restoring focus to the action buttons. With
layer-shell exclusive keyboard mode, GTK does not recover focus
automatically — the UI became keyboard-unreachable.

CHANGELOG.md

@@ -3,6 +3,19 @@
 All notable changes to this project will be documented in this file.
 Format based on [Keep a Changelog](https://keepachangelog.com/).
 
+## [0.8.0] - 2026-03-30
+
+### Changed
+
+- Replace `canonicalize()` with `symlink_metadata` + `is_file` + `!is_symlink` for avatar lookup — prevents symlink traversal to arbitrary files
+- Replace `canonicalize()` with same symlink-safe check in `resolve_background_path`
+- Downscale wallpaper to `MAX_BLUR_DIMENSION` (1920px) before GPU blur — prevents excessive memory use on high-res images
+- Validate `background_blur` per config source — invalid user value preserves system default instead of silently falling back to 0
+
+### Fixed
+
+- Fix blur padding offset from `(0,0)` to `(-pad,-pad)` to prevent edge darkening on blurred wallpaper
+
 ## [0.7.3] - 2026-03-29
 
 ### Fixed

Cargo.lock

@@ -616,7 +616,7 @@ dependencies = [
 
 [[package]]
 name = "moonset"
-version = "0.8.0"
+version = "0.8.2"
 dependencies = [
  "dirs",
  "gdk-pixbuf",

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "moonset"
-version = "0.8.0"
+version = "0.8.2"
 edition = "2024"
 description = "Wayland session power menu with GTK4 and Layer Shell"
 license = "MIT"
@@ -22,5 +22,10 @@ systemd-journal-logger = "2.2"
 [dev-dependencies]
 tempfile = "3"
 
+[profile.release]
+lto = "thin"
+codegen-units = 1
+strip = true
+
 [build-dependencies]
 glib-build-tools = "0.22"

DECISIONS.md

@@ -2,6 +2,13 @@
 
 Architectural and design decisions for Moonset, in reverse chronological order.
 
+## 2026-03-31 – Fourth audit: release profile, GResource compression, lock stderr, sync markers
+
+- **Who**: Ragnar, Dom
+- **Why**: Fourth triple audit found missing release profile (LTO/strip), uncompressed GResource assets, moonlock stderr suppressed (errors invisible), and duplicated code without sync markers.
+- **Tradeoffs**: moonlock stderr now inherited instead of null — errors appear in moonset's journal context. Acceptable for debugging, no security leak since moonlock logs to its own journal identifier.
+- **How**: (1) `[profile.release]` with LTO, codegen-units=1, strip. (2) `compressed="true"` on GResource entries. (3) `Stdio::inherit()` for moonlock stderr in lock(). (4) SYNC comments on duplicated blur/background functions.
+
 ## 2026-03-28 – Remove wallpaper from GResource bundle
 
 - **Who**: Ragnar, Dom

build.rs

@@ -1,5 +1,5 @@
 // ABOUTME: Build script for compiling GResource bundle.
-// ABOUTME: Bundles style.css, wallpaper.jpg, and default-avatar.svg into the binary.
+// ABOUTME: Bundles style.css and default-avatar.svg into the binary.
 
 fn main() {
     glib_build_tools::compile_resources(

resources/resources.gresource.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <gresources>
   <gresource prefix="/dev/moonarch/moonset">
-    <file>style.css</file>
+    <file compressed="true">style.css</file>
-    <file>default-avatar.svg</file>
+    <file compressed="true">default-avatar.svg</file>
   </gresource>
 </gresources>

src/panel.rs

@@ -103,6 +103,10 @@ pub fn load_background_texture(bg_path: Option<&Path>) -> Option<gdk::Texture> {
 
 // -- GPU blur via GskBlurNode -------------------------------------------------
 
+// SYNC: MAX_BLUR_DIMENSION, render_blurred_texture, and create_background_picture
+// are duplicated in moonlock/src/lockscreen.rs and moongreet/src/greeter.rs.
+// Changes here must be mirrored to the other two projects.
+
 /// Maximum texture dimension before downscaling for blur.
 /// Keeps GPU work reasonable on 4K+ displays.
 const MAX_BLUR_DIMENSION: f32 = 1920.0;
@@ -288,6 +292,7 @@ pub fn create_panel_window(texture: Option<&gdk::Texture>, blur_radius: Option<f
             &confirm_area,
             &confirm_box,
             &error_label,
+            &button_box,
         );
         button_box.append(&button);
     }
@@ -371,6 +376,7 @@ fn create_action_button(
     confirm_area: &gtk::Box,
     confirm_box: &Rc<RefCell<Option<gtk::Box>>>,
     error_label: &gtk::Label,
+    button_box: &gtk::Box,
 ) -> gtk::Button {
     let button_content = gtk::Box::new(gtk::Orientation::Vertical, 4);
     button_content.set_halign(gtk::Align::Center);
@@ -400,6 +406,8 @@ fn create_action_button(
         confirm_box,
         #[weak]
         error_label,
+        #[weak]
+        button_box,
         move |_| {
             on_action_clicked(
                 &action_def,
@@ -408,6 +416,7 @@ fn create_action_button(
                 &confirm_area,
                 &confirm_box,
                 &error_label,
+                &button_box,
             );
         }
     ));
@@ -430,6 +439,7 @@ fn on_action_clicked(
     confirm_area: &gtk::Box,
     confirm_box: &Rc<RefCell<Option<gtk::Box>>>,
     error_label: &gtk::Label,
+    button_box: &gtk::Box,
 ) {
     dismiss_confirm(confirm_area, confirm_box);
     error_label.set_visible(false);
@@ -439,7 +449,7 @@ fn on_action_clicked(
         return;
     }
 
-    show_confirm(action_def, strings, app, confirm_area, confirm_box, error_label);
+    show_confirm(action_def, strings, app, confirm_area, confirm_box, error_label, button_box);
 }
 
 /// Show inline confirmation below the action buttons.
@@ -450,6 +460,7 @@ fn show_confirm(
     confirm_area: &gtk::Box,
     confirm_box: &Rc<RefCell<Option<gtk::Box>>>,
     error_label: &gtk::Label,
+    button_box: &gtk::Box,
 ) {
     let new_box = gtk::Box::new(gtk::Orientation::Vertical, 8);
     new_box.set_halign(gtk::Align::Center);
@@ -497,8 +508,13 @@ fn show_confirm(
         confirm_area,
         #[strong]
         confirm_box,
+        #[weak]
+        button_box,
         move |_| {
             dismiss_confirm(&confirm_area, &confirm_box);
+            if let Some(first) = button_box.first_child() {
+                first.grab_focus();
+            }
         }
     ));
     button_row.append(&no_btn);

src/power.rs

@@ -107,7 +107,7 @@ pub fn lock() -> Result<(), PowerError> {
     Command::new("/usr/bin/moonlock")
         .stdin(Stdio::null())
         .stdout(Stdio::null())
-        .stderr(Stdio::null())
+        .stderr(Stdio::inherit())
         .spawn()
         .map_err(|e| PowerError::CommandFailed {
             action: "lock",