undo/redo

src/tui/log_viewer/view.rs

@@ -0,0 +1,28 @@
+use std::rc::Rc;
+
+use crate::tui::{model::LogEntry, processing::LogStream};
+
+pub struct LogView {
+    pub iter: Box<dyn LogStream>,
+    pub selection_offset: usize,
+}
+
+impl LogView {
+    pub fn selected(&self) -> Option<(Rc<LogEntry>, usize)> {
+        let mut temp_iter = self.iter.clone();
+        for _ in 0..self.selection_offset {
+            let _ = temp_iter.next()?;
+        }
+
+        temp_iter.next()
+    }
+}
+
+impl Clone for LogView {
+    fn clone(&self) -> Self {
+        Self {
+            iter: self.iter.clone(),
+            selection_offset: self.selection_offset.clone(),
+        }
+    }
+}