cba9ff55c7
Please credit @eliaperantoni, for the original PR (#34136). Merge after (#34060) to avoid conflicts. Closes https://github.com/zed-industries/zed/issues/33838 Closes https://github.com/zed-industries/zed/issues/33906 Release Notes: - Helix will no longer sometimes fall out into "normal" mode, will remain in "helix normal" (example: vv) - Added dedicated "helix select" mode that can be targeted by keybindings Known issues: - [ ] Helix motion, especially surround-add will not properly work in visual mode, as it won't call `helix_move_cursor`. It is possible however to respect self.mode in change_selection now. - [ ] Some operations, such as `Ctrl+A` (increment) or `>` (indent) will collapse selection also. I haven't found a way to avoid it. --------- Co-authored-by: fantacell <ghub@giggo.de> Co-authored-by: Conrad Irwin <conrad.irwin@gmail.com>
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.