From e4b67094e757917588fb624a30aa046667403add Mon Sep 17 00:00:00 2001
From: Maze Winther <mazewinther@gmail.com>
Date: Tue, 7 Apr 2026 01:09:13 +0200
Subject: refactor: split effects and masks into dedicated rust crates,
 introduce MediaTime and FrameRate

---
 apps/web/src/hooks/timeline/use-timeline-seek.ts | 29 +++++++++++++-----------
 1 file changed, 16 insertions(+), 13 deletions(-)

(limited to 'apps/web/src/hooks/timeline/use-timeline-seek.ts')

diff --git a/apps/web/src/hooks/timeline/use-timeline-seek.ts b/apps/web/src/hooks/timeline/use-timeline-seek.ts
index 1690153e..756ec7ee 100644
--- a/apps/web/src/hooks/timeline/use-timeline-seek.ts
+++ b/apps/web/src/hooks/timeline/use-timeline-seek.ts
@@ -1,7 +1,8 @@
 import { useCallback, useRef } from "react";
 import type { MutableRefObject, RefObject } from "react";
 import { BASE_TIMELINE_PIXELS_PER_SECOND } from "@/lib/timeline/scale";
-import { getSnappedSeekTime } from "opencut-wasm";
+import { snappedSeekTime } from "opencut-wasm";
+import { TICKS_PER_SECOND } from "@/lib/wasm";
 import { useEditor } from "../use-editor";
 
 interface UseTimelineSeekProps {
@@ -127,17 +128,18 @@ export function useTimelineSeek({
 			const mouseX = event.clientX - rect.left;
 			const scrollLeft = scrollContainer.scrollLeft;
 
-			const rawTime = Math.max(
-				0,
-				Math.min(
-					duration,
-					(mouseX + scrollLeft) /
-						(BASE_TIMELINE_PIXELS_PER_SECOND * zoomLevel),
-				),
-			);
-
-			const projectFps = activeProject?.settings.fps || 30;
-			const time = getSnappedSeekTime({ rawTime, duration, fps: projectFps });
+		const rawTimeSeconds = Math.max(
+			0,
+			Math.min(
+				duration / TICKS_PER_SECOND,
+				(mouseX + scrollLeft) /
+					(BASE_TIMELINE_PIXELS_PER_SECOND * zoomLevel),
+			),
+		);
+		const rawTime = Math.round(rawTimeSeconds * TICKS_PER_SECOND);
+
+		const rate = activeProject?.settings.fps;
+		const time = rate ? (snappedSeekTime({ time: rawTime, duration, rate }) ?? rawTime) : rawTime;
 			seek(time);
 			editor.project.setTimelineViewState({
 				viewState: {
@@ -154,7 +156,8 @@ export function useTimelineSeek({
 			tracksScrollRef,
 			seek,
 			editor,
-			activeProject?.settings.fps,
+			activeProject?.settings.fps.numerator,
+		activeProject?.settings.fps.denominator,
 		],
 	);
 
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