Only show notebook cell context menu items in notebook editor

[dhruvisompura]

Addresses #10518

This PR addresses the issue where the notebook cell context menu incorrectly appeared in the Output panel right-click menu WHEN a positron notebook was the active editor.

I did some testing and noticed that the Output pane was the only place I was seeing the notebook cell menu items. They don't show up if you right-click in the Primary or Secondary Side Bars. It turns that this is because the Output panel is a Monaco editor under the hood (based off a quick look at the dom elements via dev tools) and contributes its actions to MenuId.EditorContext which is the menu used by editors (see Clear Output):

positron/src/vs/workbench/contrib/output/browser/output.contribution.ts

Line 319 in 20c6627

id: MenuId.EditorContext,

. This is the same menu that the notebook cell actions are contributed too. Other editor specific actions such as "Go To Definition" which are contributed to MenuId.EditorContext also check if the editor has focus via context keys like editorTextFocus which prevents them from showing up in the Output panel.

I think the solution here is to do what the other editor commands do, and check if the notebook editor has focus.

BEFORE - notebook cell menu in output panel when a notebook is the active editor

Screen.Recording.2025-11-12.at.3.58.15.PM.mov

AFTER - no notebook cell menu in output panel when a notebook is the active editor

Screen.Recording.2025-11-12.at.3.59.52.PM.mov

Release Notes

New Features

• N/A

Bug Fixes

• N/A

QA Notes

the main testing notes are in #10518 for the regression.

We should also test to make sure the submenu still appears in positron notebooks as expected. I do want to point out that prior to this change, the notebook cell context menu only showed up when a user right-clicked in a cell when it was in edit mode this same behavior has been maintained. You can't right click on a markdown cell that is NOT in edit mode. I think this is because we contribute these menu items to the "Editor" menu and the view mode of a markdown cell is not an editor so the menu can't be brought up. I think this is something that we could fix in the future but isn't part of this issue.

@:positron-notebooks

[github-actions]

E2E Tests 🚀
This PR will run tests tagged with: @:critical @:positron-notebooks

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[nstrayer]

Good catch. Glad it's just as simple as messing with the when clause!