tlc: FM→editor/viewer handoff with line numbers

FindOutcome::View/Edit now carry Option<u64> line number from FindHit. FileManager gains open_editor_at_line() and open_viewer_at_line() that jump to the target line after opening.

local/recipes/tui/tlc/source/src/filemanager/dialog_ops.rs

@@ -9,6 +9,7 @@
 //! themselves via a `confirmed`/`cancelled` flag.
 
 use anyhow::Result;
+use std::path::Path;
 
 use crate::filemanager::{
     config_dialog, edit_history, external_panelize, filtered_view, find, help, hotlist,
@@ -257,6 +258,26 @@ impl FileManager {
         Ok(())
     }
 
+    /// Open the F4 editor at a specific 1-based line number.
+    pub fn open_editor_at_line(&mut self, path: &Path, line: u32) {
+        let mut ed = crate::editor::Editor::open(path);
+        ed.goto_line(line);
+        self.editor = Some(ed);
+        self.status.set_message(format!("Editing {}:{}", path.display(), line));
+    }
+
+    /// Open the F3 viewer at a specific 1-based line number.
+    pub fn open_viewer_at_line(&mut self, path: &Path, line: u64) {
+        match crate::viewer::Viewer::open(path) {
+            Ok(mut v) => {
+                let _ = v.goto_line(line);
+                self.viewer = Some(v);
+                self.status.set_message(format!("Viewing {}:{}", path.display(), line));
+            }
+            Err(e) => self.status.set_message(format!("view: {e}")),
+        }
+    }
+
     /// Open the F3 viewer for the cursor entry.
     pub fn open_viewer_for_cursor(&mut self) -> Result<()> {
         let p = self.active_panel().cursor_path();
@@ -549,16 +570,23 @@ impl FileManager {
             FindOutcome::Open(path) => {
                 self.open_file_via_path(&path);
             }
-            FindOutcome::View(path) => match crate::viewer::Viewer::open(&path) {
-                Ok(v) => {
+            FindOutcome::View(path, line) => match crate::viewer::Viewer::open(&path) {
+                Ok(mut v) => {
+                    if let Some(ln) = line {
+                        v.jump_to_line(ln);
+                    }
                     self.viewer = Some(v);
                     self.status
                         .set_message(format!("Viewing {}", path.display()));
                 }
                 Err(e) => self.status.set_message(format!("view: {e}")),
             },
-            FindOutcome::Edit(path) => {
-                self.editor = Some(crate::editor::Editor::open(&path));
+            FindOutcome::Edit(path, line) => {
+                let mut ed = crate::editor::Editor::open(&path);
+                if let Some(ln) = line {
+                    ed.goto_line(ln as u32);
+                }
+                self.editor = Some(ed);
                 self.status
                     .set_message(format!("Editing {}", path.display()));
             }

local/recipes/tui/tlc/source/src/filemanager/find.rs

@@ -93,9 +93,9 @@ pub enum FindOutcome {
     /// directory in the active panel.
     Open(PathBuf),
     /// User pressed F3 on a hit — open the file in the viewer.
-    View(PathBuf),
+    View(PathBuf, Option<u64>),
     /// User pressed F4 on a hit — open the file in the editor.
-    Edit(PathBuf),
+    Edit(PathBuf, Option<u64>),
     /// User pressed Esc — close the dialog and do nothing.
     Cancel,
 }
@@ -231,13 +231,13 @@ impl FindDialog {
             return self
                 .results
                 .get(self.cursor)
-                .map_or(FindOutcome::Running, |h| FindOutcome::View(h.path.clone()));
+                .map_or(FindOutcome::Running, |h| FindOutcome::View(h.path.clone(), h.line));
         }
         if key == Key::f(4) {
             return self
                 .results
                 .get(self.cursor)
-                .map_or(FindOutcome::Running, |h| FindOutcome::Edit(h.path.clone()));
+                .map_or(FindOutcome::Running, |h| FindOutcome::Edit(h.path.clone(), h.line));
         }
         match key {
             Key::ESCAPE => FindOutcome::Cancel,
@@ -630,7 +630,7 @@ mod tests {
         // "a.txt" (matches the `a.txt` fixture file).
         type_pattern(&mut d, "a.txt");
         match d.handle_key(Key::f(3)) {
-            FindOutcome::View(p) => assert_eq!(p, dir.join("a.txt")),
+            FindOutcome::View(p, _) => assert_eq!(p, dir.join("a.txt")),
             other => panic!("expected View, got {other:?}"),
         }
         let _ = fs::remove_dir_all(&dir);
@@ -642,7 +642,7 @@ mod tests {
         let mut d = FindDialog::new(dir.clone());
         type_pattern(&mut d, "a.txt");
         match d.handle_key(Key::f(4)) {
-            FindOutcome::Edit(p) => assert_eq!(p, dir.join("a.txt")),
+            FindOutcome::Edit(p, _) => assert_eq!(p, dir.join("a.txt")),
             other => panic!("expected Edit, got {other:?}"),
         }
         let _ = fs::remove_dir_all(&dir);