Add split hotkeys to panes example

examples/panes/Cargo.toml

@@ -7,5 +7,6 @@ publish = false
 
 [dependencies]
 iced = { path = "../..", features = ["async-std"] }
+iced_native = { path = "../../native" }
 clock = { path = "../clock" }
 stopwatch = { path = "../stopwatch" }

examples/panes/src/main.rs

@@ -1,6 +1,7 @@
 use iced::{
     panes, Application, Command, Element, Panes, Settings, Subscription,
 };
+use iced_native::input::keyboard;
 
 use clock::{self, Clock};
 use stopwatch::{self, Stopwatch};
@@ -27,6 +28,7 @@ enum Example {
 enum Message {
     Clock(panes::Pane, clock::Message),
     Stopwatch(panes::Pane, stopwatch::Message),
+    Split(panes::Split),
 }
 
 impl Application for Launcher {
@@ -58,6 +60,21 @@ impl Application for Launcher {
                     let _ = stopwatch.update(message);
                 }
             }
+            Message::Split(kind) => {
+                if let Some(pane) = self.panes.focused_pane() {
+                    let state = if pane.index() % 2 == 0 {
+                        let (stopwatch, _) = Stopwatch::new();
+
+                        Example::Stopwatch(stopwatch)
+                    } else {
+                        let (clock, _) = Clock::new();
+
+                        Example::Clock(clock)
+                    };
+
+                    self.panes.split(kind, &pane, state);
+                }
+            }
         }
 
         dbg!(self);
@@ -66,17 +83,26 @@ impl Application for Launcher {
     }
 
     fn subscription(&self) -> Subscription<Message> {
-        Subscription::batch(self.panes.iter().map(|(pane, example)| {
-            match example {
-                Example::Clock(clock) => clock
-                    .subscription()
-                    .map(move |message| Message::Clock(pane, message)),
+        let panes_subscriptions =
+            Subscription::batch(self.panes.iter().map(|(pane, example)| {
+                match example {
+                    Example::Clock(clock) => clock
+                        .subscription()
+                        .map(move |message| Message::Clock(pane, message)),
 
-                Example::Stopwatch(stopwatch) => stopwatch
-                    .subscription()
-                    .map(move |message| Message::Stopwatch(pane, message)),
-            }
-        }))
+                    Example::Stopwatch(stopwatch) => stopwatch
+                        .subscription()
+                        .map(move |message| Message::Stopwatch(pane, message)),
+                }
+            }));
+
+        Subscription::batch(vec![
+            events::key_released(keyboard::KeyCode::H)
+                .map(|_| Message::Split(panes::Split::Horizontal)),
+            events::key_released(keyboard::KeyCode::V)
+                .map(|_| Message::Split(panes::Split::Vertical)),
+            panes_subscriptions,
+        ])
     }
 
     fn view(&mut self) -> Element<Message> {
@@ -94,3 +120,52 @@ impl Application for Launcher {
         .into()
     }
 }
+
+mod events {
+    use iced_native::{
+        futures::{
+            self,
+            stream::{BoxStream, StreamExt},
+        },
+        input::{keyboard, ButtonState},
+        subscription, Event, Hasher, Subscription,
+    };
+
+    pub fn key_released(key_code: keyboard::KeyCode) -> Subscription<()> {
+        Subscription::from_recipe(KeyReleased { key_code })
+    }
+
+    struct KeyReleased {
+        key_code: keyboard::KeyCode,
+    }
+
+    impl subscription::Recipe<Hasher, Event> for KeyReleased {
+        type Output = ();
+
+        fn hash(&self, state: &mut Hasher) {
+            use std::hash::Hash;
+
+            std::any::TypeId::of::<Self>().hash(state);
+            self.key_code.hash(state);
+        }
+
+        fn stream(
+            self: Box<Self>,
+            events: subscription::EventStream,
+        ) -> BoxStream<'static, Self::Output> {
+            events
+                .filter(move |event| match event {
+                    Event::Keyboard(keyboard::Event::Input {
+                        key_code,
+                        state: ButtonState::Released,
+                        ..
+                    }) if *key_code == self.key_code => {
+                        futures::future::ready(true)
+                    }
+                    _ => futures::future::ready(false),
+                })
+                .map(|_| ())
+                .boxed()
+        }
+    }
+}