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[PR #856] Fix #670: Terminal selects a char when bringing window to foreground #24359

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opened 2026-01-31 09:02:47 +00:00 by claunia · 0 comments
claunia commented 2026-01-31 09:02:47 +00:00
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Original Pull Request: https://github.com/microsoft/terminal/pull/856

State: closed
Merged: Yes

Summary of the Pull Request

This fix prevents text from being selected when the user clicks within the active terminal to re-focus the window. This brings the new terminal's behavior inline with the original powershell and cmd terminals.

Fixes #670

I tested this fix's behavior manually, but did ensure all unit tests are passing.

PR Checklist

  • Closes #xxx
  • CLA signed. If not, go over here and sign the CLA
  • Tests added/passed
  • Requires documentation to be updated
  • I've discussed this with core contributors already. If not checked, I'm ready to accept this work might be rejected in favor of a different grand plan. Issue number where discussion took place: #xxx

Detailed Description of the Pull Request / Additional comments

The proposed changes may be a naive way of fixing the issue. I simply added a bool called _focused to the TermControl class which is set and unset during the respective GotFocus and LostFocus events. That bool is then checked whenever a new MouseClick event is encountered. If _focused is false during the MouseClick event, the MouseClick event handler immediately returns instead of handling the event normally.

I did try to fix this issue using the GettingFocus event, but I could not find a way to stop the MouseClick event from the GettingFocus event handler. I am pretty new to UWP events, so I am more than happy to revise this fix if a better method exists.

**Original Pull Request:** https://github.com/microsoft/terminal/pull/856 **State:** closed **Merged:** Yes --- <!-- Enter a brief description/summary of your PR here. What does it fix/what does it change/how was it tested (even manually, if necessary)? --> ## Summary of the Pull Request This fix prevents text from being selected when the user clicks within the active terminal to re-focus the window. This brings the new terminal's behavior inline with the original powershell and cmd terminals. Fixes #670 I tested this fix's behavior manually, but did ensure all unit tests are passing. <!-- Please review the items on the PR checklist before submitting--> ## PR Checklist * [x] Closes #xxx * [x] CLA signed. If not, go over [here](https://cla.opensource.microsoft.com/microsoft/Terminal) and sign the CLA * [x] Tests added/passed * [ ] Requires documentation to be updated * [ ] I've discussed this with core contributors already. If not checked, I'm ready to accept this work might be rejected in favor of a different grand plan. Issue number where discussion took place: #xxx <!-- Provide a more detailed description of the PR, other things fixed or any additional comments/features here --> ## Detailed Description of the Pull Request / Additional comments The proposed changes may be a naive way of fixing the issue. I simply added a bool called _focused to the TermControl class which is set and unset during the respective GotFocus and LostFocus events. That bool is then checked whenever a new MouseClick event is encountered. If _focused is false during the MouseClick event, the MouseClick event handler immediately returns instead of handling the event normally. I did try to fix this issue using the GettingFocus event, but I could not find a way to stop the MouseClick event from the GettingFocus event handler. I am pretty new to UWP events, so I am more than happy to revise this fix if a better method exists.
claunia added the pull-request label 2026-01-31 09:02:47 +00:00
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Reference: starred/terminal#24359
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