From 6a22a3ecbdff2d0e6a4c24c8db40bb86bc01b692 Mon Sep 17 00:00:00 2001
From: Maze Winther <mazewinther@gmail.com>
Date: Sat, 25 Apr 2026 03:56:22 +0200
Subject: refactor: centralize editor interaction state

Move timeline and preview gestures into dedicated controllers so hooks stay thin around editor state and DOM events.

This also routes drag and playback synchronization through manager APIs and reuses persistent wasm surfaces so scrubbing, seeking, and preview rendering stay in sync.

Made-with: Cursor
---
 apps/web/src/core/managers/audio-manager.ts | 23 +++++++----------------
 1 file changed, 7 insertions(+), 16 deletions(-)

(limited to 'apps/web/src/core/managers/audio-manager.ts')

diff --git a/apps/web/src/core/managers/audio-manager.ts b/apps/web/src/core/managers/audio-manager.ts
index 545565be..d0716aad 100644
--- a/apps/web/src/core/managers/audio-manager.ts
+++ b/apps/web/src/core/managers/audio-manager.ts
@@ -1,9 +1,6 @@
 import type { EditorCore } from "@/core";
 import { TICKS_PER_SECOND } from "@/wasm";
-import {
-	clampRetimeRate,
-	shouldMaintainPitch,
-} from "@/retime/rate";
+import { clampRetimeRate, shouldMaintainPitch } from "@/retime/rate";
 import type { AudioClipSource } from "@/media/audio";
 import { createAudioContext, collectAudioClips } from "@/media/audio";
 import {
@@ -56,10 +53,8 @@ export class AudioManager {
 			this.editor.playback.subscribe(this.handlePlaybackChange),
 			this.editor.timeline.subscribe(this.handleTimelineChange),
 			this.editor.media.subscribe(this.handleTimelineChange),
+			this.editor.playback.onSeek(this.handleSeek),
 		);
-		if (typeof window !== "undefined") {
-			window.addEventListener("playback-seek", this.handleSeek);
-		}
 	}
 
 	dispose(): void {
@@ -68,9 +63,6 @@ export class AudioManager {
 			unsub();
 		}
 		this.unsubscribers = [];
-		if (typeof window !== "undefined") {
-			window.removeEventListener("playback-seek", this.handleSeek);
-		}
 		this.disposeSinks();
 		this.preparedClipBuffers.clear();
 		this.decodedBuffers.clear();
@@ -102,17 +94,14 @@ export class AudioManager {
 		}
 	};
 
-	private handleSeek = (event: Event): void => {
-		const detail = (event as CustomEvent<{ time: number }>).detail;
-		if (!detail) return;
-
+	private handleSeek = (time: number): void => {
 		if (this.editor.playback.getIsScrubbing()) {
 			this.stopPlayback();
 			return;
 		}
 
 		if (this.editor.playback.getIsPlaying()) {
-			void this.startPlayback({ time: detail.time / TICKS_PER_SECOND });
+			void this.startPlayback({ time: time / TICKS_PER_SECOND });
 			return;
 		}
 
@@ -126,7 +115,9 @@ export class AudioManager {
 
 		if (!this.editor.playback.getIsPlaying()) return;
 
-		void this.startPlayback({ time: this.editor.playback.getCurrentTime() / TICKS_PER_SECOND });
+		void this.startPlayback({
+			time: this.editor.playback.getCurrentTime() / TICKS_PER_SECOND,
+		});
 	};
 
 	private ensureAudioContext(): AudioContext | null {
-- 
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