feat(component): add ExecuteCommand action & logic to demonstrate spa…

…wning external command

Signed-off-by: Deep Panchal <[email protected]>

component/template/src/action.rs

@@ -6,6 +6,9 @@ use serde::{
 };
 use strum::Display;
 
+type Command = String;
+type CommandArgs = Vec<String>;
+
 #[derive(Debug, Clone, PartialEq, Eq, Serialize, Display, Deserialize)]
 pub enum Action {
   Tick,
@@ -17,4 +20,5 @@ pub enum Action {
   ClearScreen,
   Error(String),
   Help,
+  ExecuteCommand(Command, CommandArgs),
 }

component/template/src/app.rs

@@ -127,6 +127,14 @@ impl App {
               }
             })?;
           },
+          Action::ExecuteCommand(ref command, ref args) => {
+            tui.exit()?;
+            let cmd = command.to_string();
+            let cmd_args = args.iter().map(|s| s.as_str()).collect::<Vec<&str>>();
+            self.spawn_process(&cmd, &cmd_args)?;
+            tui.enter()?;
+            action_tx.send(Action::ClearScreen)?;
+          }
           _ => {},
         }
         for component in self.components.iter_mut() {
@@ -149,4 +157,12 @@ impl App {
     tui.exit()?;
     Ok(())
   }
+
+  fn spawn_process(&self, command: &str, args: &[&str]) -> Result<()> {
+      let status = std::process::Command::new(command).args(args).status()?;
+      if !status.success() {
+        eprintln!("\nCommand failed with status: {}", status);
+      }
+      Ok(())
+  }
 }

component/template/src/components/home.rs

@@ -35,6 +35,18 @@ impl Component for Home {
     Ok(())
   }
 
+  fn handle_key_events(&mut self, key: KeyEvent) -> Result<Option<Action>> {
+    match key.code {
+      KeyCode::Char('e') => {
+        let cmd = String::from("vim");
+        let cmd_args = vec!["/tmp/a.txt".into()];
+        let action = Action::ExecuteCommand(cmd, cmd_args);
+        Ok(Some(action))
+      }
+      _ => Ok(None)
+    }
+  }
+
   fn update(&mut self, action: Action) -> Result<Option<Action>> {
     match action {
       Action::Tick => {
@@ -45,7 +57,7 @@ impl Component for Home {
   }
 
   fn draw(&mut self, f: &mut Frame<'_>, area: Rect) -> Result<()> {
-    f.render_widget(Paragraph::new("hello world"), area);
+    f.render_widget(Paragraph::new("Hello world, press 'e' to edit /tmp/a.txt with vim"), area);
     Ok(())
   }
 }