fix: set scale at the beginning

iced_layershell/src/application.rs

@@ -368,8 +368,12 @@ async fn run_instance<A, E, C>(
 
     while let Some(event) = event_receiver.next().await {
         match event {
-            IcedLayerEvent::RequestRefresh { width, height } => {
-                state.update_view_port(width, height);
+            IcedLayerEvent::RequestRefresh {
+                width,
+                height,
+                fractal_scale,
+            } => {
+                state.update_view_port(width, height, fractal_scale);
                 let ps = state.physical_size();
                 let width = ps.width;
                 let height = ps.height;

iced_layershell/src/application/state.rs

@@ -58,7 +58,8 @@ where
         self.window_scale_factor
     }
 
-    pub fn update_view_port(&mut self, width: u32, height: u32) {
+    pub fn update_view_port(&mut self, width: u32, height: u32, scale: f64) {
+        self.window_scale_factor = scale;
         self.viewport = Viewport::with_physical_size(
             iced::Size::new(width, height),
             self.current_wayland_scale() * self.scale_factor,

iced_layershell/src/event.rs

@@ -98,13 +98,15 @@ pub enum IcedLayerEvent<Message: 'static, INFO: Clone> {
     RequestRefreshWithWrapper {
         width: u32,
         height: u32,
+        fractal_scale: f64,
         wrapper: WindowWrapper,
         is_created: bool,
         info: Option<INFO>,
     },
     RequestRefresh {
         width: u32,
         height: u32,
+        fractal_scale: f64,
     },
     Window(WindowEvent),
     NormalUpdate,
@@ -131,12 +133,16 @@ impl<Message: 'static, INFO: Clone> From<(Option<Id>, IcedLayerEvent<Message, IN
 impl<Message: 'static, INFO: Clone> From<&DispatchMessage> for IcedLayerEvent<Message, INFO> {
     fn from(value: &DispatchMessage) -> Self {
         match value {
-            DispatchMessage::RequestRefresh { width, height, .. } => {
-                IcedLayerEvent::RequestRefresh {
-                    width: *width,
-                    height: *height,
-                }
-            }
+            DispatchMessage::RequestRefresh {
+                width,
+                height,
+                scale_float,
+                ..
+            } => IcedLayerEvent::RequestRefresh {
+                width: *width,
+                height: *height,
+                fractal_scale: *scale_float,
+            },
             DispatchMessage::MouseEnter {
                 surface_x: x,
                 surface_y: y,

iced_layershell/src/multi_window.rs

@@ -256,6 +256,7 @@ where
                     DispatchMessage::RequestRefresh {
                         width,
                         height,
+                        scale_float,
                         is_created,
                         ..
                     } => {
@@ -268,6 +269,7 @@ where
                                 IcedLayerEvent::RequestRefreshWithWrapper {
                                     width: *width,
                                     height: *height,
+                                    fractal_scale: *scale_float,
                                     wrapper: unit.gen_wrapper(),
                                     is_created: *is_created,
                                     info: unit.get_binding().cloned(),
@@ -502,6 +504,7 @@ async fn run_instance<A, E, C>(
                 IcedLayerEvent::RequestRefreshWithWrapper {
                     width,
                     height,
+                    fractal_scale,
                     wrapper,
                     is_created,
                     info,
@@ -515,6 +518,7 @@ async fn run_instance<A, E, C>(
                     let window = window_manager.insert(
                         id,
                         (width, height),
+                        fractal_scale,
                         Arc::new(wrapper),
                         &application,
                         &mut compositor,

iced_layershell/src/multi_window/state.rs

@@ -26,12 +26,16 @@ impl<A: Application> State<A>
 where
     A::Theme: DefaultStyle,
 {
-    pub fn new(id: window::Id, application: &A, (width, height): (u32, u32)) -> Self {
+    pub fn new(
+        id: window::Id,
+        application: &A,
+        (width, height): (u32, u32),
+        wayland_scale_factor: f64,
+    ) -> Self {
         let scale_factor = application.scale_factor(id);
         let theme = application.theme();
         let appearance = application.style(&theme);
 
-        let wayland_scale_factor = 1.0;
         let viewport = Viewport::with_physical_size(
             iced_core::Size::new(width, height),
             wayland_scale_factor * scale_factor,

iced_layershell/src/multi_window/window_manager.rs

@@ -74,12 +74,13 @@ where
         &mut self,
         id: IcedId,
         size: (u32, u32),
+        fractal_scale: f64,
         window: Arc<WindowWrapper>,
         application: &A,
         compositor: &mut C,
     ) -> &mut Window<A, C> {
         let layerid = window.id();
-        let state = State::new(id, application, size);
+        let state = State::new(id, application, size, fractal_scale);
         let physical_size = state.physical_size();
         let surface = compositor.create_surface(window, physical_size.width, physical_size.height);
         let renderer = compositor.create_renderer();

layershellev/src/events.rs

@@ -239,8 +239,8 @@ pub(crate) enum DispatchMessageInner {
     RequestRefresh {
         width: u32,
         height: u32,
-        is_created: bool,
         scale_float: f64,
+        is_created: bool,
     },
     PreferredScale {
         scale_u32: u32,
@@ -323,8 +323,8 @@ pub enum DispatchMessage {
     RequestRefresh {
         width: u32,
         height: u32,
-        is_created: bool,
         scale_float: f64,
+        is_created: bool,
     },
     /// fractal scale handle
     PreferredScale { scale_u32: u32, scale_float: f64 },
@@ -401,13 +401,13 @@ impl From<DispatchMessageInner> for DispatchMessage {
             DispatchMessageInner::RequestRefresh {
                 width,
                 height,
-                is_created,
                 scale_float,
+                is_created,
             } => DispatchMessage::RequestRefresh {
                 width,
                 height,
-                is_created,
                 scale_float,
+                is_created,
             },
             DispatchMessageInner::Axis {
                 time,

layershellev/src/lib.rs

@@ -1656,20 +1656,16 @@ impl<T> Dispatch<wp_fractional_scale_v1::WpFractionalScaleV1, ()> for WindowStat
         _qhandle: &QueueHandle<Self>,
     ) {
         if let wp_fractional_scale_v1::Event::PreferredScale { scale } = event {
-            let Some(id) = state
-                .units
-                .iter()
-                .find(|info| {
-                    info.fractional_scale
-                        .as_ref()
-                        .is_some_and(|fractional_scale| fractional_scale == proxy)
-                })
-                .map(|unit| unit.id)
-            else {
+            let Some(unit) = state.units.iter_mut().find(|info| {
+                info.fractional_scale
+                    .as_ref()
+                    .is_some_and(|fractional_scale| fractional_scale == proxy)
+            }) else {
                 return;
             };
+            unit.scale = scale;
             state.message.push((
-                Some(id),
+                Some(unit.id),
                 DispatchMessageInner::PreferredScale {
                     scale_u32: scale,
                     scale_float: scale as f64 / 120.,
@@ -2422,7 +2418,6 @@ impl<T: 'static> WindowState<T> {
                                 becreated: true,
                                 wl_output: None,
                                 binding: info,
-
                                 scale: 120,
                             });
                         }