[SHOPTIME-3440] Full Player / Live / TV Home에 다녀온 이후에 재생 시간 변경 안됨

addEventListener 추가

com.twin.app.shoptime/src/views/PlayerPanel/PlayerPanel.jsx

@@ -1253,6 +1253,31 @@ const PlayerPanel = ({
   }, [liveShowInfos, selectedIndex, panelInfo.shptmBanrTpNm]);
 
   useEffect(() => {
+    const handleVisibilityChange = () => {
+      if (
+        document.visibilityState === "visible" &&
+        liveShowInfos &&
+        panelInfo?.shptmBanrTpNm === "LIVE"
+      ) {
+        const localStartDt = convertUtcToLocal(
+          liveShowInfos[selectedIndex]?.strtDt
+        );
+
+        const curDt = new Date();
+        const localStartSec = localStartDt?.getTime() / 1000;
+        const curSec = curDt?.getTime() / 1000;
+
+        const calculatedLiveTime = curSec - localStartSec;
+        if (calculatedLiveTime >= liveTotalTime) {
+          setCurrentLiveTimeSeconds(0);
+        } else {
+          setCurrentLiveTimeSeconds(calculatedLiveTime);
+        }
+      }
+    };
+
+    document.addEventListener("visibilitychange", handleVisibilityChange);
+
     if (panelInfo.offsetHour) {
       setCurrentLiveTimeSeconds(parseInt(panelInfo.offsetHour));
     } else if (liveShowInfos && panelInfo?.shptmBanrTpNm === "LIVE") {
@@ -1273,11 +1298,17 @@ const PlayerPanel = ({
     } else {
       setCurrentLiveTimeSeconds(0);
     }
+
+    return () => {
+      document.removeEventListener("visibilitychange", handleVisibilityChange);
+    };
   }, [
     liveShowInfos,
     selectedIndex,
     panelInfo.offsetHour,
     panelInfo.shptmBanrTpNm,
+    playListInfo,
+    liveTotalTime,
   ]);
 
   useEffect(() => {