Introduce QueryInformation to system::Action

native/src/command/action.rs

@@ -20,7 +20,7 @@ pub enum Action<T> {
     Window(window::Action),
 
     /// Run a system action.
-    System(system::Action),
+    System(system::Action<T>),
 }
 
 impl<T> Action<T> {
@@ -38,7 +38,7 @@ impl<T> Action<T> {
             Self::Future(future) => Action::Future(Box::pin(future.map(f))),
             Self::Clipboard(action) => Action::Clipboard(action.map(f)),
             Self::Window(window) => Action::Window(window),
-            Self::System(system) => Action::System(system),
+            Self::System(system) => Action::System(system.map(f)),
         }
     }
 }

native/src/system.rs

@@ -1,3 +1,6 @@
 //! Access the native system.
 mod action;
+mod information;
+
 pub use action::Action;
+pub use information::Information;

native/src/system/action.rs

@@ -1,3 +1,36 @@
+use crate::system;
+
+use iced_futures::MaybeSend;
+
+use std::fmt;
+
 /// An operation to be performed on the system.
-#[derive(Debug)]
-pub enum Action {}
+pub enum Action<T> {
+    /// Query system information and produce `T` with the result.
+    QueryInformation(Box<dyn Fn(Option<system::Information>) -> T>),
+}
+
+impl<T> Action<T> {
+    /// Maps the output of a system [`Action`] using the provided closure.
+    pub fn map<A>(
+        self,
+        f: impl Fn(T) -> A + 'static + MaybeSend + Sync,
+    ) -> Action<A>
+    where
+        T: 'static,
+    {
+        match self {
+            Self::QueryInformation(o) => {
+                Action::QueryInformation(Box::new(move |s| f(o(s))))
+            }
+        }
+    }
+}
+
+impl<T> fmt::Debug for Action<T> {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match self {
+            Self::QueryInformation(_) => write!(f, "Action::QueryInformation"),
+        }
+    }
+}

native/src/system/information.rs

@@ -0,0 +1,12 @@
+/// Contains informations about the system (e.g. system name, processor, memory, graphics adapter).
+#[derive(Debug)]
+pub struct Information {
+    system_name: String,
+    system_kernel: String,
+    system_version: String,
+    cpu_brand: String,
+    cpu_vendor: String,
+    cpu_name: String,
+    cpu_cores: String,
+    memory_total: String,
+}