Problem

After manually clicking a zoom (or trim/speed) region in the timeline, the Download button stops working. The export panel never appears — the user is stuck seeing the zoom-edit panel and must click elsewhere in the timeline to deselect before they can export.

Root Cause

SettingsPanel computes:

const hasTimelineSelection = Boolean(selectedZoomId || selectedTrimId || selectedSpeedId);

Both the export button's active highlight and the export panel content are gated on !hasTimelineSelection:

// button highlight
activePanelMode === "export" && !hasTimelineSelection ? "active" : "inactive"

// panel content
{activePanelMode === "export" && !hasTimelineSelection && ( ... )}

When the user clicks a zoom region, selectedZoomId becomes non-null in VideoEditor. Clicking the Download button only calls setActivePanelMode("export") (local SettingsPanel state) — it does not clear the selection in VideoEditor. So hasTimelineSelection stays true and the export panel never renders.

Fix

Add an onExportPanelOpen callback prop to SettingsPanel. When the Download button is clicked, the callback fires alongside the local mode switch, clearing selectedZoomId, selectedTrimId, and selectedSpeedId in VideoEditor so hasTimelineSelection drops to false and the export panel renders immediately.

// VideoEditor.tsx
onExportPanelOpen={() => {
  setSelectedZoomId(null);
  setSelectedTrimId(null);
  setSelectedSpeedId(null);
}}

(selectedAnnotationId and selectedBlurId are intentionally excluded — they are not part of hasTimelineSelection and don't affect export panel visibility.)

Relation to PR #611

PR #611 fixed a sibling bug: the "Suggest Zooms" bulk path called setSelectedZoomId for every auto-zoom, leaving the last one selected and hiding the export panel. Fix: don't steal selection in the bulk path.

This PR covers the remaining path: manual selection via a timeline click. Together they ensure the Download button works from any editor state.

Changes

Verification

1. Load a video in the editor
2. Add a zoom region and click it — zoom settings panel appears
3. Click the Download (↓) button in the left rail
4. Expected: export panel appears immediately, zoom deselected
5. Repeat with a trim region and a speed region — same result

Summary by CodeRabbit

• Bug Fixes
  • Timeline selections (trim, zoom, speed) are now automatically cleared when opening the export panel, preventing accidental edits or lingering selection state during export.