working focus

examples/focus_advanced.rs

@@ -0,0 +1,57 @@
+extern crate alloc;
+
+use tui_orchestrator::focus::{FocusBuilder, FocusId, FocusManager, Focusable};
+
+#[derive(Debug, Clone, PartialEq, Eq, Hash)]
+enum FormElement {
+    Username,
+    Password,
+    RememberMe,
+    Submit,
+}
+
+struct FormPage {
+    username: alloc::string::String,
+    password: alloc::string::String,
+    remember: bool,
+}
+
+impl Focusable<FormElement> for FormPage {
+    fn focus_targets(&self) -> alloc::vec::Vec<FormElement> {
+        alloc::vec![
+            FormElement::Username,
+            FormElement::Password,
+            FormElement::RememberMe,
+            FormElement::Submit,
+        ]
+    }
+}
+
+fn main() {
+    let form = FormPage {
+        username: alloc::string::String::new(),
+        password: alloc::string::String::new(),
+        remember: false,
+    };
+
+    let mut focus_manager = FocusManager::new();
+    focus_manager.set_targets(form.focus_targets());
+    println!("Current focus: {:?}", focus_manager.current());
+
+    focus_manager.next();
+    println!("After next: {:?}", focus_manager.current());
+
+    focus_manager.last();
+    println!("After last: {:?}", focus_manager.current());
+
+    println!("Is first: {}", focus_manager.is_first());
+    println!("Is last: {}", focus_manager.is_last());
+
+    println!("\n--- FocusBuilder Demo ---");
+    let builder = FocusBuilder::new()
+        .target(FormElement::Username)
+        .target(FormElement::Password)
+        .target(FormElement::Submit);
+    let targets = builder.build();
+    println!("Built targets: {:?}", targets);
+}