1 files changed, 85 insertions, 39 deletions

diff --git a/runtime/src/window.rs b/runtime/src/window.rs
index 41816967..2136d64d 100644
--- a/runtime/src/window.rs
+++ b/runtime/src/window.rs
@@ -8,95 +8,135 @@ pub use screenshot::Screenshot;
 
 use crate::command::{self, Command};
 use crate::core::time::Instant;
-use crate::core::window::{Event, Icon, Level, Mode, UserAttention};
-use crate::core::Size;
+use crate::core::window::{
+    Event, Icon, Id, Level, Mode, Settings, UserAttention,
+};
+use crate::core::{Point, Size};
 use crate::futures::event;
 use crate::futures::Subscription;
 
 /// Subscribes to the frames of the window of the running application.
 ///
 /// The resulting [`Subscription`] will produce items at a rate equal to the
-/// refresh rate of the window. Note that this rate may be variable, as it is
+/// refresh rate of the first application window. Note that this rate may be variable, as it is
 /// normally managed by the graphics driver and/or the OS.
 ///
 /// In any case, this [`Subscription`] is useful to smoothly draw application-driven
 /// animations without missing any frames.
 pub fn frames() -> Subscription<Instant> {
     event::listen_raw(|event, _status| match event {
-        iced_core::Event::Window(Event::RedrawRequested(at)) => Some(at),
+        crate::core::Event::Window(_, Event::RedrawRequested(at)) => Some(at),
         _ => None,
     })
 }
 
-/// Closes the current window and exits the application.
-pub fn close<Message>() -> Command<Message> {
-    Command::single(command::Action::Window(Action::Close))
+/// Spawns a new window with the given `settings`.
+///
+/// Returns the new window [`Id`] alongside the [`Command`].
+pub fn spawn<Message>(settings: Settings) -> (Id, Command<Message>) {
+    let id = Id::unique();
+
+    (
+        id,
+        Command::single(command::Action::Window(Action::Spawn(id, settings))),
+    )
+}
+
+/// Closes the window with `id`.
+pub fn close<Message>(id: Id) -> Command<Message> {
+    Command::single(command::Action::Window(Action::Close(id)))
 }
 
 /// Begins dragging the window while the left mouse button is held.
-pub fn drag<Message>() -> Command<Message> {
-    Command::single(command::Action::Window(Action::Drag))
+pub fn drag<Message>(id: Id) -> Command<Message> {
+    Command::single(command::Action::Window(Action::Drag(id)))
 }
 
 /// Resizes the window to the given logical dimensions.
-pub fn resize<Message>(new_size: Size<u32>) -> Command<Message> {
-    Command::single(command::Action::Window(Action::Resize(new_size)))
+pub fn resize<Message>(id: Id, new_size: Size) -> Command<Message> {
+    Command::single(command::Action::Window(Action::Resize(id, new_size)))
 }
 
-/// Fetches the current window size in logical dimensions.
+/// Fetches the window's size in logical dimensions.
 pub fn fetch_size<Message>(
-    f: impl FnOnce(Size<u32>) -> Message + 'static,
+    id: Id,
+    f: impl FnOnce(Size) -> Message + 'static,
 ) -> Command<Message> {
-    Command::single(command::Action::Window(Action::FetchSize(Box::new(f))))
+    Command::single(command::Action::Window(Action::FetchSize(id, Box::new(f))))
+}
+
+/// Fetches if the window is maximized.
+pub fn fetch_maximized<Message>(
+    id: Id,
+    f: impl FnOnce(bool) -> Message + 'static,
+) -> Command<Message> {
+    Command::single(command::Action::Window(Action::FetchMaximized(
+        id,
+        Box::new(f),
+    )))
 }
 
 /// Maximizes the window.
-pub fn maximize<Message>(maximized: bool) -> Command<Message> {
-    Command::single(command::Action::Window(Action::Maximize(maximized)))
+pub fn maximize<Message>(id: Id, maximized: bool) -> Command<Message> {
+    Command::single(command::Action::Window(Action::Maximize(id, maximized)))
+}
+
+/// Fetches if the window is minimized.
+pub fn fetch_minimized<Message>(
+    id: Id,
+    f: impl FnOnce(Option<bool>) -> Message + 'static,
+) -> Command<Message> {
+    Command::single(command::Action::Window(Action::FetchMinimized(
+        id,
+        Box::new(f),
+    )))
 }
 
-/// Minimes the window.
-pub fn minimize<Message>(minimized: bool) -> Command<Message> {
-    Command::single(command::Action::Window(Action::Minimize(minimized)))
+/// Minimizes the window.
+pub fn minimize<Message>(id: Id, minimized: bool) -> Command<Message> {
+    Command::single(command::Action::Window(Action::Minimize(id, minimized)))
 }
 
-/// Moves a window to the given logical coordinates.
-pub fn move_to<Message>(x: i32, y: i32) -> Command<Message> {
-    Command::single(command::Action::Window(Action::Move { x, y }))
+/// Moves the window to the given logical coordinates.
+pub fn move_to<Message>(id: Id, position: Point) -> Command<Message> {
+    Command::single(command::Action::Window(Action::Move(id, position)))
 }
 
 /// Changes the [`Mode`] of the window.
-pub fn change_mode<Message>(mode: Mode) -> Command<Message> {
-    Command::single(command::Action::Window(Action::ChangeMode(mode)))
+pub fn change_mode<Message>(id: Id, mode: Mode) -> Command<Message> {
+    Command::single(command::Action::Window(Action::ChangeMode(id, mode)))
 }
 
 /// Fetches the current [`Mode`] of the window.
 pub fn fetch_mode<Message>(
+    id: Id,
     f: impl FnOnce(Mode) -> Message + 'static,
 ) -> Command<Message> {
-    Command::single(command::Action::Window(Action::FetchMode(Box::new(f))))
+    Command::single(command::Action::Window(Action::FetchMode(id, Box::new(f))))
 }
 
 /// Toggles the window to maximized or back.
-pub fn toggle_maximize<Message>() -> Command<Message> {
-    Command::single(command::Action::Window(Action::ToggleMaximize))
+pub fn toggle_maximize<Message>(id: Id) -> Command<Message> {
+    Command::single(command::Action::Window(Action::ToggleMaximize(id)))
 }
 
 /// Toggles the window decorations.
-pub fn toggle_decorations<Message>() -> Command<Message> {
-    Command::single(command::Action::Window(Action::ToggleDecorations))
+pub fn toggle_decorations<Message>(id: Id) -> Command<Message> {
+    Command::single(command::Action::Window(Action::ToggleDecorations(id)))
 }
 
-/// Request user attention to the window, this has no effect if the application
+/// Request user attention to the window. This has no effect if the application
 /// is already focused. How requesting for user attention manifests is platform dependent,
 /// see [`UserAttention`] for details.
 ///
 /// Providing `None` will unset the request for user attention. Unsetting the request for
 /// user attention might not be done automatically by the WM when the window receives input.
 pub fn request_user_attention<Message>(
+    id: Id,
     user_attention: Option<UserAttention>,
 ) -> Command<Message> {
     Command::single(command::Action::Window(Action::RequestUserAttention(
+        id,
         user_attention,
     )))
 }
@@ -107,30 +147,36 @@ pub fn request_user_attention<Message>(
 /// This [`Command`] steals input focus from other applications. Do not use this method unless
 /// you are certain that's what the user wants. Focus stealing can cause an extremely disruptive
 /// user experience.
-pub fn gain_focus<Message>() -> Command<Message> {
-    Command::single(command::Action::Window(Action::GainFocus))
+pub fn gain_focus<Message>(id: Id) -> Command<Message> {
+    Command::single(command::Action::Window(Action::GainFocus(id)))
 }
 
 /// Changes the window [`Level`].
-pub fn change_level<Message>(level: Level) -> Command<Message> {
-    Command::single(command::Action::Window(Action::ChangeLevel(level)))
+pub fn change_level<Message>(id: Id, level: Level) -> Command<Message> {
+    Command::single(command::Action::Window(Action::ChangeLevel(id, level)))
 }
 
-/// Fetches an identifier unique to the window.
+/// Fetches an identifier unique to the window, provided by the underlying windowing system. This is
+/// not to be confused with [`Id`].
 pub fn fetch_id<Message>(
+    id: Id,
     f: impl FnOnce(u64) -> Message + 'static,
 ) -> Command<Message> {
-    Command::single(command::Action::Window(Action::FetchId(Box::new(f))))
+    Command::single(command::Action::Window(Action::FetchId(id, Box::new(f))))
 }
 
 /// Changes the [`Icon`] of the window.
-pub fn change_icon<Message>(icon: Icon) -> Command<Message> {
-    Command::single(command::Action::Window(Action::ChangeIcon(icon)))
+pub fn change_icon<Message>(id: Id, icon: Icon) -> Command<Message> {
+    Command::single(command::Action::Window(Action::ChangeIcon(id, icon)))
 }
 
 /// Captures a [`Screenshot`] from the window.
 pub fn screenshot<Message>(
+    id: Id,
     f: impl FnOnce(Screenshot) -> Message + Send + 'static,
 ) -> Command<Message> {
-    Command::single(command::Action::Window(Action::Screenshot(Box::new(f))))
+    Command::single(command::Action::Window(Action::Screenshot(
+        id,
+        Box::new(f),
+    )))
 }