fix: maximize instead of fullscreen

This fixes interactions with the window manager including dodging
exclusive zones, correctly sharpening corners when the window manager
sets the maximized mode, and correctly toggling the maximized state when
either F11 or the maximize button are clicked.

src/app/command.rs

@@ -33,8 +33,11 @@ pub fn drag<M: Send + 'static>(id: Option<window::Id>) -> iced::Command<Message<
     crate::command::drag(id).map(Message::Cosmic)
 }
 
-pub fn fullscreen<M: Send + 'static>(id: Option<window::Id>) -> iced::Command<Message<M>> {
-    crate::command::fullscreen(id).map(Message::Cosmic)
+pub fn maximize<M: Send + 'static>(
+    id: Option<window::Id>,
+    maximized: bool,
+) -> iced::Command<Message<M>> {
+    crate::command::maximize(id, maximized).map(Message::Cosmic)
 }
 
 pub fn minimize<M: Send + 'static>(id: Option<window::Id>) -> iced::Command<Message<M>> {
@@ -60,6 +63,6 @@ pub fn set_windowed<M: Send + 'static>(id: Option<window::Id>) -> iced::Command<
     crate::command::set_windowed(id).map(Message::Cosmic)
 }
 
-pub fn toggle_fullscreen<M: Send + 'static>(id: Option<window::Id>) -> iced::Command<Message<M>> {
-    crate::command::toggle_fullscreen(id).map(Message::Cosmic)
+pub fn toggle_maximize<M: Send + 'static>(id: Option<window::Id>) -> iced::Command<Message<M>> {
+    crate::command::toggle_maximize(id).map(Message::Cosmic)
 }

src/app/core.rs

@@ -27,7 +27,6 @@ pub struct Window {
     pub header_title: String,
     pub use_template: bool,
     pub content_container: bool,
-    pub can_fullscreen: bool,
     pub sharp_corners: bool,
     pub show_context: bool,
     pub show_headerbar: bool,
@@ -103,7 +102,6 @@ impl Default for Core {
                 header_title: String::new(),
                 use_template: true,
                 content_container: true,
-                can_fullscreen: false,
                 sharp_corners: false,
                 show_context: false,
                 show_headerbar: true,

src/app/cosmic.rs

@@ -56,6 +56,8 @@ pub enum Message {
     SystemThemeChange(Theme),
     /// Notification of system theme mode changes.
     SystemThemeModeChange(ThemeMode),
+    /// Updates the window maximized state
+    WindowMaximized(window::Id, bool),
     /// Updates the tracked window geometry.
     WindowResize(window::Id, u32, u32),
     /// Tracks updates to window state.
@@ -257,13 +259,25 @@ impl<T: Application> Cosmic<T> {
     #[allow(clippy::too_many_lines)]
     fn cosmic_update(&mut self, message: Message) -> iced::Command<super::Message<T::Message>> {
         match message {
+            Message::WindowMaximized(id, maximized) => {
+                if window::Id::MAIN == id {
+                    self.app.core_mut().window.sharp_corners = maximized;
+                }
+            }
+
             Message::WindowResize(id, width, height) => {
                 if window::Id::MAIN == id {
                     self.app.core_mut().set_window_width(width);
                     self.app.core_mut().set_window_height(height);
                 }
 
                 self.app.on_window_resize(id, width, height);
+
+                //TODO: more efficient test of maximized (winit has no event for maximize if set by the OS)
+                #[cfg(not(feature = "wayland"))]
+                return iced::window::fetch_maximized(id, move |maximized| {
+                    super::Message::Cosmic(Message::WindowMaximized(id, maximized))
+                });
             }
 
             #[cfg(feature = "wayland")]
@@ -284,8 +298,6 @@ impl<T: Application> Cosmic<T> {
             #[cfg(feature = "wayland")]
             Message::WmCapabilities(id, capabilities) => {
                 if window::Id::MAIN == id {
-                    self.app.core_mut().window.can_fullscreen =
-                        capabilities.contains(WindowManagerCapabilities::FULLSCREEN);
                     self.app.core_mut().window.show_maximize =
                         capabilities.contains(WindowManagerCapabilities::MAXIMIZE);
                     self.app.core_mut().window.show_minimize =
@@ -308,7 +320,7 @@ impl<T: Application> Cosmic<T> {
                 keyboard_nav::Message::Escape => return self.app.on_escape(),
                 keyboard_nav::Message::Search => return self.app.on_search(),
 
-                keyboard_nav::Message::Fullscreen => return command::toggle_fullscreen(None),
+                keyboard_nav::Message::Fullscreen => return command::toggle_maximize(None),
             },
 
             Message::ContextDrawer(show) => {
@@ -320,15 +332,7 @@ impl<T: Application> Cosmic<T> {
 
             Message::Minimize => return command::minimize(None),
 
-            Message::Maximize => {
-                if self.app.core().window.sharp_corners {
-                    self.app.core_mut().window.sharp_corners = false;
-                    return command::set_windowed(None);
-                }
-
-                self.app.core_mut().window.sharp_corners = true;
-                return command::fullscreen(None);
-            }
+            Message::Maximize => return command::toggle_maximize(None),
 
             Message::NavBar(key) => {
                 self.app.core_mut().nav_bar_set_toggled_condensed(false);

src/app/mod.rs

@@ -529,8 +529,8 @@ pub trait ApplicationExt: Application {
     /// Initiates a window drag.
     fn drag(&mut self) -> iced::Command<Message<Self::Message>>;
 
-    /// Fullscreens the window.
-    fn fullscreen(&mut self) -> iced::Command<Message<Self::Message>>;
+    /// Maximizes the window.
+    fn maximize(&mut self) -> iced::Command<Message<Self::Message>>;
 
     /// Minimizes the window.
     fn minimize(&mut self) -> iced::Command<Message<Self::Message>>;
@@ -574,8 +574,8 @@ impl<App: Application> ApplicationExt for App {
         command::drag(Some(window::Id::MAIN))
     }
 
-    fn fullscreen(&mut self) -> iced::Command<Message<Self::Message>> {
-        command::fullscreen(Some(window::Id::MAIN))
+    fn maximize(&mut self) -> iced::Command<Message<Self::Message>> {
+        command::maximize(Some(window::Id::MAIN), true)
     }
 
     fn minimize(&mut self) -> iced::Command<Message<Self::Message>> {

src/command/mod.rs

@@ -42,16 +42,16 @@ pub fn drag<M>(id: Option<window::Id>) -> Command<M> {
     iced_runtime::window::drag(id.unwrap_or(window::Id::MAIN))
 }
 
-/// Fullscreens the window.
+/// Maximizes the window.
 #[cfg(feature = "wayland")]
-pub fn fullscreen<M>(id: Option<window::Id>) -> Command<M> {
-    iced_sctk::commands::window::set_mode_window(id.unwrap_or(window::Id::MAIN), Mode::Fullscreen)
+pub fn maximize<M>(id: Option<window::Id>, maximized: bool) -> Command<M> {
+    iced_sctk::commands::window::maximize(id.unwrap_or(window::Id::MAIN), maximized)
 }
 
-/// Fullscreens the window.
+/// Maximizes the window.
 #[cfg(not(feature = "wayland"))]
-pub fn fullscreen<M>(id: Option<window::Id>) -> Command<M> {
-    iced_runtime::window::change_mode(id.unwrap_or(window::Id::MAIN), Mode::Fullscreen)
+pub fn maximize<M>(id: Option<window::Id>, maximized: bool) -> Command<M> {
+    iced_runtime::window::maximize(id.unwrap_or(window::Id::MAIN), maximized)
 }
 
 /// Minimizes the window.
@@ -94,17 +94,15 @@ pub fn set_windowed<M>(id: Option<window::Id>) -> Command<M> {
     iced_runtime::window::change_mode(id.unwrap_or(window::Id::MAIN), Mode::Windowed)
 }
 
-/// Toggles the windows' maximization state.
+/// Toggles the windows' maximize state.
 #[cfg(feature = "wayland")]
-pub fn toggle_fullscreen<M>(id: Option<window::Id>) -> Command<M> {
-    window_action(WindowAction::ToggleFullscreen {
-        id: id.unwrap_or(window::Id::MAIN),
-    })
+pub fn toggle_maximize<M>(id: Option<window::Id>) -> Command<M> {
+    iced_sctk::commands::window::toggle_maximize(id.unwrap_or(window::Id::MAIN))
 }
 
-/// Toggles the windows' maximization state.
+/// Toggles the windows' maximize state.
 #[cfg(not(feature = "wayland"))]
-pub fn toggle_fullscreen<M>(id: Option<window::Id>) -> Command<M> {
+pub fn toggle_maximize<M>(id: Option<window::Id>) -> Command<M> {
     iced_runtime::window::toggle_maximize(id.unwrap_or(window::Id::MAIN))
 }