git_graph: Wire up Vim mode navigation

assets/keymaps/vim.json

@@ -1033,6 +1033,15 @@
       "enter": "menu::Cancel",
     },
   },
+  {
+    "context": "GitGraph",
+    "bindings": {
+      "j": "vim::MenuSelectNext",
+      "k": "vim::MenuSelectPrevious",
+      "shift-g": "menu::SelectLast",
+      "g g": "menu::SelectFirst"
+    }
+  },
   {
     "context": "GitPanel && ChangesList && !GitBranchSelector",
     "use_key_equivalents": true,

crates/git_graph/src/git_graph.rs

@@ -5072,4 +5072,144 @@ mod tests {
             );
         });
     }
+
+    #[gpui::test]
+    async fn test_git_graph_navigation(cx: &mut TestAppContext) {
+        init_test(cx);
+
+        let fs = FakeFs::new(cx.executor());
+        fs.insert_tree(
+            Path::new("/project"),
+            serde_json::json!({
+                ".git": {},
+                "file.txt": "content",
+            }),
+        )
+        .await;
+
+        let mut rng = StdRng::seed_from_u64(42);
+        let commits = generate_random_commit_dag(&mut rng, 10, false);
+        fs.set_graph_commits(Path::new("/project/.git"), commits);
+
+        let project = Project::test(fs.clone(), [Path::new("/project")], cx).await;
+        cx.run_until_parked();
+
+        let repository = project.read_with(cx, |project, cx| {
+            project
+                .active_repository(cx)
+                .expect("should have a repository")
+        });
+
+        let (multi_workspace, cx) = cx.add_window_view(|window, cx| {
+            workspace::MultiWorkspace::test_new(project.clone(), window, cx)
+        });
+
+        let workspace_weak =
+            multi_workspace.read_with(&*cx, |multi, _| multi.workspace().downgrade());
+
+        let git_graph = cx.new_window_entity(|window, cx| {
+            GitGraph::new(
+                repository.read(cx).id,
+                project.read(cx).git_store().clone(),
+                workspace_weak,
+                None,
+                window,
+                cx,
+            )
+        });
+        cx.run_until_parked();
+
+        git_graph.update_in(cx, |graph, window, cx| {
+            graph.focus_handle(cx).focus(window, cx);
+        });
+        cx.run_until_parked();
+
+        cx.draw(
+            point(px(0.), px(0.)),
+            gpui::size(px(1200.), px(800.)),
+            |_, _| git_graph.clone().into_any_element(),
+        );
+        cx.run_until_parked();
+
+        git_graph.read_with(&*cx, |graph, _| {
+            assert_eq!(graph.graph_data.commits.len(), 10);
+        });
+        git_graph.read_with(&*cx, |graph, _| {
+            assert_eq!(graph.selected_entry_idx, None);
+        });
+
+        git_graph.update_in(cx, |graph, window, cx| {
+            graph.select_first(&menu::SelectFirst, window, cx);
+        });
+        cx.run_until_parked();
+        git_graph.read_with(&*cx, |graph, _| {
+            assert_eq!(graph.selected_entry_idx, Some(0));
+        });
+
+        git_graph.update_in(cx, |graph, window, cx| {
+            graph.select_next(&menu::SelectNext, window, cx);
+        });
+        cx.run_until_parked();
+        git_graph.read_with(&*cx, |graph, _| {
+            assert_eq!(graph.selected_entry_idx, Some(1));
+        });
+
+        git_graph.update_in(cx, |graph, window, cx| {
+            graph.select_prev(&menu::SelectPrevious, window, cx);
+        });
+        cx.run_until_parked();
+        git_graph.read_with(&*cx, |graph, _| {
+            assert_eq!(graph.selected_entry_idx, Some(0));
+        });
+
+        git_graph.update_in(cx, |graph, window, cx| {
+            graph.select_last(&menu::SelectLast, window, cx);
+        });
+        cx.run_until_parked();
+        git_graph.read_with(&*cx, |graph, _| {
+            assert_eq!(graph.selected_entry_idx, Some(9));
+        });
+
+        git_graph.update_in(cx, |graph, window, cx| {
+            graph.select_next(&menu::SelectNext, window, cx);
+        });
+        cx.run_until_parked();
+        git_graph.read_with(&*cx, |graph, _| {
+            assert_eq!(graph.selected_entry_idx, Some(9));
+        });
+
+        git_graph.update_in(cx, |graph, window, cx| {
+            graph.select_prev(&menu::SelectPrevious, window, cx);
+        });
+        cx.run_until_parked();
+        git_graph.read_with(&*cx, |graph, _| {
+            assert_eq!(graph.selected_entry_idx, Some(8));
+        });
+
+        git_graph.update(cx, |graph, cx| {
+            graph.selected_entry_idx = None;
+            cx.notify();
+        });
+        cx.run_until_parked();
+        git_graph.update_in(cx, |graph, window, cx| {
+            graph.select_prev(&menu::SelectPrevious, window, cx);
+        });
+        cx.run_until_parked();
+        git_graph.read_with(&*cx, |graph, _| {
+            assert_eq!(graph.selected_entry_idx, Some(0));
+        });
+
+        git_graph.update(cx, |graph, cx| {
+            graph.selected_entry_idx = None;
+            cx.notify();
+        });
+        cx.run_until_parked();
+        git_graph.update_in(cx, |graph, window, cx| {
+            graph.select_next(&menu::SelectNext, window, cx);
+        });
+        cx.run_until_parked();
+        git_graph.read_with(&*cx, |graph, _| {
+            assert_eq!(graph.selected_entry_idx, Some(0));
+        });
+    }
 }