From 9b5fd6eb077a3fb2380f42414b65405030a01fcd Mon Sep 17 00:00:00 2001 From: Maze Winther Date: Sun, 8 Feb 2026 01:51:25 +0100 Subject: feat: ensure elements on main track starts at 0 --- apps/web/src/lib/timeline/drop-utils.ts | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) (limited to 'apps/web/src/lib/timeline/drop-utils.ts') diff --git a/apps/web/src/lib/timeline/drop-utils.ts b/apps/web/src/lib/timeline/drop-utils.ts index 8c22194a..9182892f 100644 --- a/apps/web/src/lib/timeline/drop-utils.ts +++ b/apps/web/src/lib/timeline/drop-utils.ts @@ -2,7 +2,7 @@ import type { TimelineTrack, ElementType } from "@/types/timeline"; import { TRACK_HEIGHTS, TRACK_GAP } from "@/constants/timeline-constants"; import { wouldElementOverlap } from "./element-utils"; import type { ComputeDropTargetParams, DropTarget } from "@/types/timeline"; -import { isMainTrack } from "./track-utils"; +import { isMainTrack, enforceMainTrackStart } from "./track-utils"; function getTrackAtY({ mouseY, @@ -185,11 +185,21 @@ export function computeDropTarget({ }); if (isTrackCompatible && !hasOverlap) { + const targetTrack = tracks[trackIndex]; + // safe: snap to 0 only happens when element becomes the new earliest, + // meaning the space before the current earliest is empty + const adjustedXPosition = enforceMainTrackStart({ + tracks, + targetTrackId: targetTrack.id, + requestedStartTime: xPosition, + excludeElementId, + }); + return { trackIndex, isNewTrack: false, insertPosition: null, - xPosition, + xPosition: adjustedXPosition, }; } -- cgit v1.3.1