## 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
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| .. | ||
| src | ||
| test_data | ||
| Cargo.toml | ||
| LICENSE-GPL | ||
| README.md | ||
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.