task-001: can navigate file screen options with keyboard

1 files changed, 16 insertions, 0 deletions

diff --git a/schist_desktop_gui/src/gui/components/navigation/navigation_find.rs b/schist_desktop_gui/src/gui/components/navigation/navigation_find.rs
new file mode 100644
index 0000000..79c8ab0
--- /dev/null
+++ b/schist_desktop_gui/src/gui/components/navigation/navigation_find.rs
@@ -0,0 +1,16 @@
+impl<'a, TOption> super::Navigation<TOption>
+where
+    TOption: Clone + PartialEq + 'a,
+{
+    pub fn find<P>(&self, pred: P) -> Option<TOption>
+    where
+        P: Fn(&TOption) -> bool,
+    {
+        self.options_before_active
+            .iter()
+            .find(|o| pred(o))
+            .cloned()
+            .or_else(|| self.active_option.clone().filter(|o| pred(o)))
+            .or_else(|| self.options_after_active.iter().find(|o| pred(o)).cloned())
+    }
+}