Add `fetch_location` command to `window` module

2 files changed, 19 insertions, 0 deletions

diff --git a/runtime/src/window.rs b/runtime/src/window.rs
index 04bcfcd8..c5acfddc 100644
--- a/runtime/src/window.rs
+++ b/runtime/src/window.rs
@@ -106,6 +106,17 @@ pub fn move_to<Message>(id: Id, position: Point) -> Command<Message> {
     Command::single(command::Action::Window(Action::Move(id, position)))
 }
 
+/// Fetches the window's location in logical coordinates.
+pub fn fetch_location<Message>(
+    id: Id,
+    f: impl FnOnce(Option<Point>) -> Message + 'static,
+) -> Command<Message> {
+    Command::single(command::Action::Window(Action::FetchLocation(
+        id,
+        Box::new(f),
+    )))
+}
+
 /// Changes the [`Mode`] of the window.
 pub fn change_mode<Message>(id: Id, mode: Mode) -> Command<Message> {
     Command::single(command::Action::Window(Action::ChangeMode(id, mode)))
diff --git a/runtime/src/window/action.rs b/runtime/src/window/action.rs
index 9bfc2b62..39eb1008 100644
--- a/runtime/src/window/action.rs
+++ b/runtime/src/window/action.rs
@@ -42,6 +42,8 @@ pub enum Action<T> {
     ///
     /// Unsupported on Wayland.
     Move(Id, Point),
+    /// Fetch the current logical coordinates of the window.
+    FetchLocation(Id, Box<dyn FnOnce(Option<Point>) -> T + 'static>),
     /// Change the [`Mode`] of the window.
     ChangeMode(Id, Mode),
     /// Fetch the current [`Mode`] of the window.
@@ -135,6 +137,9 @@ impl<T> Action<T> {
             }
             Self::Minimize(id, minimized) => Action::Minimize(id, minimized),
             Self::Move(id, position) => Action::Move(id, position),
+            Self::FetchLocation(id, o) => {
+                Action::FetchLocation(id, Box::new(move |s| f(o(s))))
+            }
             Self::ChangeMode(id, mode) => Action::ChangeMode(id, mode),
             Self::FetchMode(id, o) => {
                 Action::FetchMode(id, Box::new(move |s| f(o(s))))
@@ -189,6 +194,9 @@ impl<T> fmt::Debug for Action<T> {
             Self::Move(id, position) => {
                 write!(f, "Action::Move({id:?}, {position})")
             }
+            Self::FetchLocation(id, _) => {
+                write!(f, "Action::FetchLocation({id:?})")
+            }
             Self::ChangeMode(id, mode) => {
                 write!(f, "Action::SetMode({id:?}, {mode:?})")
             }