Set window type to dock

- `_NET_WM_WINDOW_TYPE(ATOM) = _NET_WM_WINDOW_TYPE_DOCK`
- This lets an X11 WM treat it as a panel/dock

Cargo.toml

@@ -7,10 +7,9 @@ authors = ["candifloss <candifloss.cc>"]
 readme = "README.md"
 
 [dependencies]
-raw-window-handle = "0.6.2"
-slint = { version = "1.14.1", features = ["raw-window-handle-06", "renderer-software"] }
+i-slint-backend-winit = { version = "1.14.1", features = ["x11"] }
+slint = { version = "1.14.1", features = ["backend-winit"] }
 winit = { version = "0.30.12", features = ["x11rb"] }
-x11rb = "0.13.2"
 
 [build-dependencies]
 slint-build = "1.14.1"

src/main.rs

@@ -1,18 +1,34 @@
 use slint::{LogicalPosition, LogicalSize};
+use i_slint_backend_winit::{Backend, winit};
 
 slint::include_modules!();
 
 fn main() -> Result<(), Box<dyn std::error::Error>> {
+    use winit::platform::x11::{WindowAttributesExtX11, WindowType};
+
+    // Configure winit attributes before any Slint window is created.
+    let backend = Backend::builder()
+        .with_window_attributes_hook(|attrs| {
+            // Mark the X11 window as a dock so WMs treat it as a panel/topbar.
+            attrs
+                .with_x11_window_type(vec![WindowType::Dock])
+                // hide from taskbar / pagers (useful for panels)
+                //.with_skip_taskbar(true)
+        })
+        .build()?;
+
+    slint::platform::set_platform(Box::new(backend))?;
+
     let bar_height = 25;
     let bar_width = 1366;
 
     let ui = TopBar::new()?;
     ui.set_bar_width(bar_width);
     ui.set_bar_height(bar_height);
-    ui.window()
-        .set_size(LogicalSize::new(bar_width as f32, bar_height as f32));
-    ui.window().set_position(LogicalPosition::new(0.0, 0.0));
-    ui.run()?;
 
+    ui.window().set_size(LogicalSize::new(bar_width as f32, bar_height as f32));
+    ui.window().set_position(LogicalPosition::new(0.0, 0.0));
+
+    ui.run()?;
     Ok(())
 }