Merge pull request #1019 from hecrj/command-actions

Platform-specific `Command` implementations

1 files changed, 28 insertions, 0 deletions

diff --git a/web/src/command/action.rs b/web/src/command/action.rs
new file mode 100644
index 00000000..c0223e50
--- /dev/null
+++ b/web/src/command/action.rs
@@ -0,0 +1,28 @@
+pub enum Action<T> {
+    Future(iced_futures::BoxFuture<T>),
+}
+
+use std::fmt;
+
+impl<T> Action<T> {
+    /// Applies a transformation to the result of a [`Command`].
+    #[cfg(target_arch = "wasm32")]
+    pub fn map<A>(self, f: impl Fn(T) -> A + 'static) -> Action<A>
+    where
+        T: 'static,
+    {
+        use iced_futures::futures::FutureExt;
+
+        match self {
+            Self::Future(future) => Action::Future(Box::pin(future.map(f))),
+        }
+    }
+}
+
+impl<T> fmt::Debug for Action<T> {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match self {
+            Self::Future(_) => write!(f, "Action::Future"),
+        }
+    }
+}