ZIm/crates/vim
Adam Mulvany 0e575b2809
helix: Fix buffer search: deploy reset to normal mode (#36917)
## Fix: Preserve Helix mode when using  search

### Problem
When using `buffer search: deploy` in Helix mode, pressing Enter to
dismiss the search incorrectly returned to Vim NORMAL mode instead of
Helix NORMAL mode.

### Root Cause
The `search_deploy` function was resetting the entire `SearchState` to
default values when buffer search: deploy was activated. Since the
default `Mode` is `Normal`, this caused `prior_mode` to be set to Vim's
Normal mode regardless of the actual mode before search.

### Solution
Modified `search_deploy` to preserve the current mode when resetting
search state:
- Store the current mode before resetting
- Reset search state to default
- Restore the saved mode to `prior_mode`

This ensures the editor returns to the correct mode (Helix NORMAL or Vim
NORMAL) after dismissing buffer search.

### Settings

I was able to reproduce and then test the fix was successful with the
following config and have also tested with vim: default_mode commented
out to ensure that's not influencing the mode selection flow:

```
  "helix_mode": true,
  "vim_mode": true,
  "vim": {
    "default_mode": "helix_normal"
  },
```

This is on Kubuntu 24.04.

The following test combinations pass locally:

- `cargo test -p search`
- `cargo test -p vim` 
- `cargo test -p editor`
- `cargo test -p workspace`
- `cargo test -p gpui -- vim`
- `cargo test -p gpui -- helix`

Release Notes:

- Fixed Helix mode switching to Vim normal mode after using `buffer
search: deploy` to search

Closes #36872
2025-08-26 10:38:53 -06:00
..
src helix: Fix buffer search: deploy reset to normal mode (#36917) 2025-08-26 10:38:53 -06:00
test_data vim: Implement partial increment/decrement for visual selection (#36553) 2025-08-22 03:02:47 +00:00
Cargo.toml Fix running vim tests with --features neovim (#36014) 2025-08-12 05:08:58 +00:00
LICENSE-GPL chore: Change AGPL-licensed crates to GPL (except for collab) (#4231) 2024-01-24 00:26:58 +01:00
README.md Correct other end visual block functionality (#27678) 2025-03-28 20:52:38 +00:00

This contains the code for Zed's Vim emulation mode.

Vim mode in Zed is supposed to primarily "do what you expect": it mostly tries to copy vim exactly, but will use Zed-specific functionality when available to make things smoother. This means Zed will never be 100% vim compatible, but should be 100% vim familiar!

The backlog is maintained in the #vim channel notes.

Testing against Neovim

If you are making a change to make Zed's behavior more closely match vim/nvim, you can create a test using the NeovimBackedTestContext.

For example, the following test checks that Zed and Neovim have the same behavior when running * in visual mode:

#[gpui::test]
async fn test_visual_star_hash(cx: &mut gpui::TestAppContext) {
    let mut cx = NeovimBackedTestContext::new(cx).await;

    cx.set_shared_state("ˇa.c. abcd a.c. abcd").await;
    cx.simulate_shared_keystrokes(["v", "3", "l", "*"]).await;
    cx.assert_shared_state("a.c. abcd ˇa.c. abcd").await;
}

To keep CI runs fast, by default the neovim tests use a cached JSON file that records what neovim did (see crates/vim/test_data), but while developing this test you'll need to run it with the neovim flag enabled:

cargo test -p vim --features neovim test_visual_star_hash

This will run your keystrokes against a headless neovim and cache the results in the test_data directory. Note that neovim must be installed and reachable on your $PATH in order to run the feature.

Testing zed-only behavior

Zed does more than vim/neovim in their default modes. The VimTestContext can be used instead. This lets you test integration with the language server and other parts of zed's UI that don't have a NeoVim equivalent.