bar + overlaybackend refactor

wlx-overlay-s/src/overlays/bar.rs

@@ -0,0 +1,45 @@
+use crate::{
+    backend::overlay::{OverlayData, OverlayState},
+    gui::panel::GuiPanel,
+    state::AppState,
+};
+
+pub const BAR_NAME: &str = "bar";
+
+struct BarState {}
+
+#[allow(clippy::significant_drop_tightening)]
+pub fn create_bar<O>(app: &mut AppState) -> anyhow::Result<OverlayData<O>>
+where
+    O: Default,
+{
+    let state = BarState {};
+    let (mut panel, parser) = GuiPanel::new_from_template(app, "gui/bar.xml", state)?;
+
+    for (id, widget_id) in parser.ids {
+        match id.as_ref() {
+            "lock" => {}
+            "anchor" => {}
+            "mouse" => {}
+            "fade" => {}
+            "move" => {}
+            "resize" => {}
+            "inout" => {}
+            "delete" => {}
+            _ => {}
+        }
+    }
+
+    panel.update_layout()?;
+
+    Ok(OverlayData {
+        state: OverlayState {
+            name: BAR_NAME.into(),
+            want_visible: true,
+            interactable: true,
+            spawn_scale: 0.15,
+            ..Default::default()
+        },
+        ..OverlayData::from_backend(Box::new(panel))
+    })
+}