# Prevent inactive windows from updating the IME position on linux/Wayland \(\#62086\) · gitcafe/zed

[View on GitCafe](https://git.cafe/gitcafe/zed/commit/655ed1385b00c01386bfbd9b7edea439eb1eec64)

Repository: [gitcafe/zed](https://git.cafe/gitcafe/zed)

Visibility: public

Requested revision: 655ed1385b00c01386bfbd9b7edea439eb1eec64

Requested commit: 655ed1385b00c01386bfbd9b7edea439eb1eec64

Commit: 655ed1385b00c01386bfbd9b7edea439eb1eec64

Tree: 18be7fe5815ea3785aacf23bc2be13a09e986896

Author: feeiyu

Committer: GitHub

## Message

```
Prevent inactive windows from updating the IME position on linux/Wayland (#62086)

# Objective
Fixes #62084

Fix the Wayland IME candidate window flickering between two positions
when an inactive Zed window has a terminal producing continuous output.

Terminal wakeup events in the inactive window can trigger IME position
updates, causing its cursor bounds to alternate with those from the
active window.


https://github.com/zed-industries/zed/blob/90d024b88abc91264d9a0ad260eb4f365fa695c3/crates/terminal_view/src/terminal_view.rs#L1130-L1136


https://github.com/zed-industries/zed/blob/90d024b88abc91264d9a0ad260eb4f365fa695c3/crates/gpui/src/window.rs#L5617-L5627

## Solution

Ignore IME position updates from inactive Wayland windows.

This ensures that only the active window can update the cursor rectangle
of the shared Wayland text-input object.

## Testing

To test manually on Linux with Wayland and Fcitx5:

1. Open two Zed windows.
2. Start continuous terminal output in the first window.
3. Use the Chinese IME in an editor in the second window.
4. Verify that the IME candidate window remains at a stable position.


## Self-Review Checklist:

- [X] I've reviewed my own diff for quality, security, and reliability
- [X] Unsafe blocks (if any) have justifying comments
- [X] The content adheres to Zed's UI standards
([UX/UI](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uxui-checklist)
and
[icon](https://github.com/zed-industries/zed/blob/main/crates/icons/README.md)
guidelines)
- [ ] Tests cover the new/changed behavior
- [X] Performance impact has been considered and is acceptable

## Showcase

after fix:


[2026-08-02
22-43-35.webm](https://github.com/user-attachments/assets/ff2e3bc7-7772-481e-82f8-92e6e3fa7275)



---

Release Notes:

- Fixed the IME candidate window flickering when another Zed window has
continuous terminal output
```

## Parents

- [381953d44897c53c4d252ae30620bafaa7d060b7](https://git.cafe/gitcafe/zed/commit/381953d44897c53c4d252ae30620bafaa7d060b7?format=markdown)

[Source at this commit](https://git.cafe/gitcafe/zed/tree/655ed1385b00c01386bfbd9b7edea439eb1eec64?format=markdown)