Use AtomicU64 for window::Id

core/src/window/event.rs

@@ -6,6 +6,22 @@ use std::path::PathBuf;
 /// A window-related event.
 #[derive(PartialEq, Clone, Debug)]
 pub enum Event {
+    /// A window was opened.
+    Opened {
+        /// The position of the opened window. This is relative to the top-left corner of the desktop
+        /// the window is on, including virtual desktops. Refers to window's "inner" position,
+        /// or the client area, in logical pixels.
+        ///
+        /// **Note**: Not available in Wayland.
+        position: Option<Point>,
+        /// The size of the created window. This is its "inner" size, or the size of the
+        /// client area, in logical pixels.
+        size: Size,
+    },
+
+    /// A window was closed.
+    Closed,
+
     /// A window was moved.
     Moved {
         /// The new logical x location of the window
@@ -30,22 +46,6 @@ pub enum Event {
     /// The user has requested for the window to close.
     CloseRequested,
 
-    /// A window was created.
-    Created {
-        /// The position of the created window. This is relative to the top-left corner of the desktop
-        /// the window is on, including virtual desktops. Refers to window's "inner" position,
-        /// or the client area, in logical pixels.
-        ///
-        /// **Note**: Not available in Wayland.
-        position: Option<Point>,
-        /// The size of the created window. This is its "inner" size, or the size of the
-        /// client area, in logical pixels.
-        size: Size,
-    },
-
-    /// A window was destroyed by the runtime.
-    Destroyed,
-
     /// A window was focused.
     Focused,
 

core/src/window/id.rs

@@ -1,5 +1,6 @@
-use std::collections::hash_map::DefaultHasher;
-use std::hash::{Hash, Hasher};
+use std::hash::Hash;
+
+use std::sync::atomic::{self, AtomicU64};
 
 #[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, PartialOrd, Ord)]
 /// The id of the window.
@@ -7,15 +8,14 @@ use std::hash::{Hash, Hasher};
 /// Internally Iced reserves `window::Id::MAIN` for the first window spawned.
 pub struct Id(u64);
 
+static COUNT: AtomicU64 = AtomicU64::new(1);
+
 impl Id {
     /// The reserved window [`Id`] for the first window in an Iced application.
     pub const MAIN: Self = Id(0);
 
     /// Creates a new unique window [`Id`].
-    pub fn new(id: impl Hash) -> Id {
-        let mut hasher = DefaultHasher::new();
-        id.hash(&mut hasher);
-
-        Id(hasher.finish())
+    pub fn unique() -> Id {
+        Id(COUNT.fetch_add(1, atomic::Ordering::Relaxed))
     }
 }