Add a collapse-idle action to the sidebar by ponbac · Pull Request #1210 · pingdotgg/t3code

ponbac · 2026-03-19T15:38:19Z

What Changed

Added a Collapse idle projects action to the sidebar header.
The action collapses expanded projects that are idle (not the active project and no thread status or running terminal) while keeping the currently active project open.

Why

The sidebar can accumulate a lot of expanded projects during normal use. This adds a one-click cleanup path without collapsing the project you are currently in or other projects that still have visible thread activity.

UI Changes

Video:

screenrecording-2026-03-19_16-33-08.mp4

Sorry that the mouse cursor is not visible in the recording.

Screenshot:

Added this tiny icon. Open for suggestions on a more fitting icon.

Checklist

This PR is small and focused
I explained what changed and why
[/] I included before/after screenshots for any UI changes
I included a video for animation/interaction changes

Note

Add a 'Collapse idle projects' button to the sidebar

Adds a FoldVerticalIcon button to the Projects section header in the sidebar. Clicking it collapses all expanded projects that have no running terminals and no active thread status, while keeping the currently active project and any projects with activity expanded. The logic is extracted into a collectSidebarNonIdleProjectIds utility in Sidebar.logic.ts with corresponding tests in Sidebar.logic.test.ts.

📊 Macroscope summarized 7c33165. 3 files reviewed, 1 issue evaluated, 0 issues filtered, 1 comment posted

🗂️ Filtered Issues

Note

Low Risk
Low risk UI change that adds a new sidebar action and supporting helper logic; main risk is minor behavioral/performance regressions in how project “activity” is detected for collapsing.

Overview
Adds a “Collapse idle projects” button to the sidebar Projects header that collapses currently-expanded projects that have no active signal.

Introduces collectSidebarNonIdleProjectIds (with tests) and sidebar wiring to keep the active project, projects with non-null thread status pills, or projects with running terminal threads from being collapsed; includes minor header spacing tweaks and a new FoldVerticalIcon tooltip button.

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apps/web/src/components/Sidebar.tsx

coderabbitai · 2026-03-19T16:25:03Z

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fire17 · 2026-03-21T16:52:00Z

nice touch , hope they merge

apps/web/src/components/Sidebar.tsx

cursor · 2026-03-30T06:37:29Z

apps/web/src/components/Sidebar.tsx

+        runningTerminalThreadIds,
+      }),
+    [activeProjectId, runningTerminalThreadIds, threadStatusById, threads],
+  );


Idle detection considers archived threads the sidebar hides

Medium Severity

The nonIdleProjectIds computation (along with threadStatusById and runningTerminalThreadIds) iterates over threads, which includes archived threads. The rest of the sidebar uses visibleThreads (filtered by archivedAt === null). An archived thread with a stale session status like "Working" would mark its project as non-idle, preventing collapse even though no visible activity exists for that project.

Additional Locations (2)

apps/web/src/components/Sidebar.tsx#L486-L500

apps/web/src/components/Sidebar.tsx#L501-L510

macroscopeapp · 2026-03-31T06:38:07Z

apps/web/src/components/Sidebar.tsx

    [toggleProject],
  );

+  const handleCollapseIdleProjects = useCallback(() => {


🔴 Critical components/Sidebar.tsx:1846

In handleCollapseIdleProjects, the loop iterates over projects from useStore, but that array contains raw Project objects without an expanded property. Since project.expanded is always undefined, the condition !project.expanded is always true, so the function calls continue for every project and never collapses anything. The loop should iterate over sidebarProjects (which has the expanded snapshot) or check projectExpandedById[project.id] directly.

🤖 Copy this AI Prompt to have your agent fix this:

In file apps/web/src/components/Sidebar.tsx around line 1846: In `handleCollapseIdleProjects`, the loop iterates over `projects` from `useStore`, but that array contains raw `Project` objects without an `expanded` property. Since `project.expanded` is always `undefined`, the condition `!project.expanded` is always `true`, so the function calls `continue` for every project and never collapses anything. The loop should iterate over `sidebarProjects` (which has the `expanded` snapshot) or check `projectExpandedById[project.id]` directly. Evidence trail: - apps/web/src/components/Sidebar.tsx:441 - `projects` from `useStore((store) => store.projects)` - apps/web/src/types.ts:81-89 - `Project` interface has no `expanded` property - apps/web/src/components/Sidebar.tsx:168-170 - `SidebarProjectSnapshot = Project & { expanded: boolean }` - apps/web/src/components/Sidebar.tsx:514-520 - `sidebarProjects` adds `expanded` property from `projectExpandedById` - apps/web/src/components/Sidebar.tsx:1846-1852 - `handleCollapseIdleProjects` iterates over `projects` and checks `!project.expanded`

cursor

Cursor Bugbot has reviewed your changes and found 1 potential issue.

There are 2 total unresolved issues (including 1 from previous review).

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cursor · 2026-03-31T06:40:25Z

apps/web/src/components/Sidebar.tsx

+      }
+      setProjectExpanded(project.id, false);
+    }
+  }, [projects, nonIdleProjectIds, setProjectExpanded]);


Wrong variable makes collapse button a no-op

High Severity

handleCollapseIdleProjects iterates over projects (raw Project[] from the store) which lacks an expanded property. Since project.expanded is always undefined, !project.expanded is always true, the continue always executes, and setProjectExpanded is never called. The button does nothing. The code needs to iterate over sidebarProjects instead, which is Project & { expanded: boolean }.

juliusmarminge · 2026-03-31T06:52:58Z

i think more proper filters next to the sorting in this menu would be more useful and generalized

ponbac · 2026-03-31T07:04:15Z

i think more proper filters next to the sorting in this menu would be more useful and generalized

I agree. But I think this PR (and filtering) might not be as relevant anymore since the sorting was added.

My issue was that active work could appear at the bottom of the list, pushed down by expanded projects I was not currently working on.

What would be some useful filters? Broad "Unread" filter, and maybe more granular ones like only displaying ready plans, running terminals?

Maybe filtering on a thread level would be more useful than project, or both.

github-actions bot added size:L 100-499 changed lines (additions + deletions). vouch:unvouched PR author is not yet trusted in the VOUCHED list. labels Mar 19, 2026

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ponbac force-pushed the collapse-idle branch 5 times, most recently from faa7eed to b3123eb Compare March 20, 2026 20:46

ponbac force-pushed the collapse-idle branch 2 times, most recently from 8a5469e to 3480f72 Compare March 24, 2026 07:11

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apps/web/src/components/Sidebar.tsx Outdated Show resolved Hide resolved

ponbac force-pushed the collapse-idle branch 6 times, most recently from 5d423b7 to 4a13273 Compare March 30, 2026 06:31

github-actions bot added size:M 30-99 changed lines (additions + deletions). and removed size:L 100-499 changed lines (additions + deletions). labels Mar 30, 2026

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ponbac force-pushed the collapse-idle branch from 4a13273 to 7a62228 Compare March 31, 2026 06:35

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ponbac marked this pull request as draft March 31, 2026 07:42

add: collapse idle

7c33165

ponbac force-pushed the collapse-idle branch from 7a62228 to 7c33165 Compare April 1, 2026 06:02

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Add a collapse-idle action to the sidebar#1210

Add a collapse-idle action to the sidebar#1210
ponbac wants to merge 1 commit intopingdotgg:mainfrom
ponbac:collapse-idle

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What Changed

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UI Changes

Checklist

Add a 'Collapse idle projects' button to the sidebar

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Idle detection considers archived threads the sidebar hides

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Wrong variable makes collapse button a no-op

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