macvim-dev / macvim-dev/macvim
High Sierra issue with mouse in other apps
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- Dominant language
- Vim Script
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Description
Whenever MacVim is open I am having weird cursor jitters/slow-downs in other apps. Like any app using the equivalent of an NSTextField. When I hover the text field with MacVim open the cursor speed slows down by at least half and becomes jittery.
I've noticed this issue in Firefox Nightly and Xcode and it goes away as soon as I close MacVim. In Xcode, it even happens when I'm editing a storyboard and add an NSTextField.
I haven't been able to figure out when exactly it is triggered but it does not happen just from launching MacVim. It seems to be some combination of full screen and changing window focus.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
The issue names no files or tests. Start by reproducing the cursor slowdown in Firefox Nightly or Xcode with MacVim open, varying full-screen mode and window focus; done means the jitter and reduced cursor speed no longer occur in the affected text fields.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- macos, vim
- Domain
- desktop, performance
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100