Add FocusLost and FocusGained event/action, they require mouse …

…support

Signed-off-by: FedericoBruzzone <[email protected]>

src/action.rs

@@ -86,6 +86,10 @@ pub enum Action {
     Resize(u16, u16),
     /// Paste action with a `String`.
     Paste(String),
+    /// Focus Lost action.
+    FocusLost,
+    /// Focus Gained action.
+    FocusGained,
 
     /// GetMe action.
     GetMe,

src/event.rs

@@ -25,6 +25,11 @@ pub enum Event {
     Init,
     /// Render event.
     Render,
+    /// Focus Lost event.
+    FocusLost,
+    /// Focus Gained event.
+    FocusGained,
+
     /// Update area event with a `Rect` struct.
     UpdateArea(Rect),
     /// EditMessage event with a `String`.
@@ -170,6 +175,8 @@ impl Display for Event {
             Event::Mouse(mouse) => write!(f, "Mouse({:?})", mouse),
             Event::UpdateArea(area) => write!(f, "UpdateArea({:?})", area),
             Event::Paste(s) => write!(f, "Paste({})", s),
+            Event::FocusLost => write!(f, "FocusLost"),
+            Event::FocusGained => write!(f, "FocusGained"),
             Event::GetMe => write!(f, "GetMe"),
             Event::LoadChats(chat_list, limit) => {
                 write!(f, "LoadChats({:?}, {})", chat_list, limit)

src/run.rs

@@ -191,6 +191,8 @@ async fn handle_tui_backend_events(
                     }
                 }
             }
+            Event::FocusLost => app_context.action_tx().send(Action::FocusLost)?,
+            Event::FocusGained => app_context.action_tx().send(Action::FocusGained)?,
             Event::Paste(ref text) => app_context.action_tx().send(Action::Paste(text.clone()))?,
             _ => {}
         }
@@ -264,6 +266,8 @@ pub async fn handle_app_actions(
                     tui.draw(f, f.area()).unwrap();
                 })?;
             }
+            Action::FocusLost => tui_backend.suspend()?,
+            Action::FocusGained => tui_backend.resume()?,
             Action::Quit => {
                 app_context.quit_store(true);
             }

src/tui_backend.rs

@@ -146,6 +146,7 @@ impl TuiBackend {
     /// # Returns
     /// * `Result<(), io::Error>` - An Ok result or an error.
     pub fn suspend(&mut self) -> Result<(), std::io::Error> {
+        tracing::info!("Suspending TuiBackend");
         self.exit();
         #[cfg(not(windows))]
         signal_hook::low_level::raise(signal_hook::consts::signal::SIGTSTP)?;
@@ -156,6 +157,7 @@ impl TuiBackend {
     /// # Returns
     /// * `Result<(), io::Error>` - An Ok result or an error.
     pub fn resume(&mut self) -> Result<(), std::io::Error> {
+        tracing::info!("Resuming TuiBackend");
         self.enter()?;
         Ok(())
     }
@@ -243,8 +245,12 @@ impl TuiBackend {
                                     CrosstermEvent::Resize(width, height) => {
                                         event_tx.send(Event::Resize(width, height))?;
                                     },
-                                    CrosstermEvent::FocusLost => {} // [TODO] handle focus lost
-                                    CrosstermEvent::FocusGained => {} // [TODO] handle focus gained
+                                    CrosstermEvent::FocusLost => {
+                                        event_tx.send(Event::FocusLost)?;
+                                    }
+                                    CrosstermEvent::FocusGained => {
+                                        event_tx.send(Event::FocusGained)?;
+                                    }
                                     CrosstermEvent::Paste(text) => {
                                         event_tx.send(Event::Paste(text))?;
                                     },