feat: add a window drag resize task

core/src/window.rs

@@ -3,6 +3,7 @@ pub mod icon;
 pub mod screenshot;
 pub mod settings;
 
+mod direction;
 mod event;
 mod id;
 mod level;
@@ -11,6 +12,7 @@ mod position;
 mod redraw_request;
 mod user_attention;
 
+pub use direction::Direction;
 pub use event::Event;
 pub use icon::Icon;
 pub use id::Id;

core/src/window/direction.rs

@@ -0,0 +1,27 @@
+/// The cardinal directions relative to the center of a window.
+#[derive(Debug, Clone, Copy)]
+pub enum Direction {
+    /// Points to the top edge of a window.
+    North,
+
+    /// Points to the bottom edge of a window.
+    South,
+
+    /// Points to the right edge of a window.
+    East,
+
+    /// Points to the left edge of a window.
+    West,
+
+    /// Points to the top-right corner of a window.
+    NorthEast,
+
+    /// Points to the top-left corner of a window.
+    NorthWest,
+
+    /// Points to the bottom-right corner of a window.
+    SouthEast,
+
+    /// Points to the bottom-left corner of a window.
+    SouthWest,
+}