Transcript: Ignore scroll to change volume

mods/Transcript.js

@@ -89,6 +89,9 @@ export default JadefinIntegrity("Transcript", import.meta.url, () => new (class
             const worker = detail.worker;
             worker.addEventListener("message", this.onSsaAssWorkerMessage.bind(this));
         });
+
+        this.initHookDocumentAddEventListener();
+        this.initHookDocumentRemoveEventListener();
     }
 
     get isEnabled() {
@@ -241,6 +244,45 @@ export default JadefinIntegrity("Transcript", import.meta.url, () => new (class
         };
     }
 
+    initHookDocumentAddEventListener() {
+        const orig = this._addEventListener = document.addEventListener.bind(document);
+        document.addEventListener = (type, listener, options) => {
+            if (type == "wheel") {
+                const listenerStr = listener.toString();
+
+                // Anonymous function in playback-video
+                if (listenerStr.indexOf("volumeUp") != -1 &&
+                    listenerStr.indexOf("volumeDown") != -1 &&
+                    listenerStr.indexOf("deltaY") != -1) {
+                    this.log.i("Wrapping playback-video wrap listener");
+                    this.log.dir(listener);
+
+                    const origListener = this._playbackWheel = listener;
+                    listener = this._playbackWheelWrap = (e) => {
+                        if (JadefinUtils.hasParent(e.target, this._osdTranscript)) {
+                            return;
+                        }
+
+                        return origListener(e);
+                    };
+                }
+            }
+
+            return orig(type, listener, options);
+        };
+    }
+
+    initHookDocumentRemoveEventListener() {
+        const orig = this._removeEventListener = document.removeEventListener.bind(document);
+        document.removeEventListener = (type, listener, options) => {
+            if (listener == this._playbackWheel) {
+                listener = this._playbackWheelWrap;
+            }
+
+            return orig(type, listener, options);
+        };
+    }
+
     onSsaAssCanvasAdded() {
         const htmlVideoPlayer = this._ssaAssFetching;