Remove window::Mode and introduce Settings::visible

Additionally, only show the window once one frame has been rendered to avoid blank flashes on Windows.

src/application.rs

@@ -1,5 +1,4 @@
 //! Build interactive cross-platform applications.
-use crate::window;
 use crate::{Command, Element, Executor, Settings, Subscription};
 
 pub use iced_native::application::{Appearance, StyleSheet};
@@ -169,18 +168,6 @@ pub trait Application: Sized {
         Subscription::none()
     }
 
-    /// Returns the current [`Application`] mode.
-    ///
-    /// The runtime will automatically transition your application if a new mode
-    /// is returned.
-    ///
-    /// Currently, the mode only has an effect in native platforms.
-    ///
-    /// By default, an application will run in windowed mode.
-    fn mode(&self) -> window::Mode {
-        window::Mode::Windowed
-    }
-
     /// Returns the scale factor of the [`Application`].
     ///
     /// It can be used to dynamically control the size of the UI at runtime
@@ -277,14 +264,6 @@ where
         self.0.style()
     }
 
-    fn mode(&self) -> iced_winit::Mode {
-        match self.0.mode() {
-            window::Mode::Windowed => iced_winit::Mode::Windowed,
-            window::Mode::Fullscreen => iced_winit::Mode::Fullscreen,
-            window::Mode::Hidden => iced_winit::Mode::Hidden,
-        }
-    }
-
     fn subscription(&self) -> Subscription<Self::Message> {
         self.0.subscription()
     }

src/window.rs

@@ -1,12 +1,10 @@
 //! Configure the window of your application in native platforms.
-mod mode;
 mod position;
 mod settings;
 
 pub mod icon;
 
 pub use icon::Icon;
-pub use mode::Mode;
 pub use position::Position;
 pub use settings::Settings;
 

src/window/mode.rs

@@ -1,12 +0,0 @@
-/// The mode of a window-based application.
-#[derive(Debug, Clone, Copy, PartialEq, Eq)]
-pub enum Mode {
-    /// The application appears in its own window.
-    Windowed,
-
-    /// The application takes the whole screen of its current monitor.
-    Fullscreen,
-
-    /// The application is hidden
-    Hidden,
-}

src/window/settings.rs

@@ -15,6 +15,9 @@ pub struct Settings {
     /// The maximum size of the window.
     pub max_size: Option<(u32, u32)>,
 
+    /// Whether the window should be visible or not.
+    pub visible: bool,
+
     /// Whether the window should be resizable or not.
     pub resizable: bool,
 
@@ -38,6 +41,7 @@ impl Default for Settings {
             position: Position::default(),
             min_size: None,
             max_size: None,
+            visible: true,
             resizable: true,
             decorations: true,
             transparent: false,
@@ -54,6 +58,7 @@ impl From<Settings> for iced_winit::settings::Window {
             position: iced_winit::Position::from(settings.position),
             min_size: settings.min_size,
             max_size: settings.max_size,
+            visible: settings.visible,
             resizable: settings.resizable,
             decorations: settings.decorations,
             transparent: settings.transparent,