[SHOPTIME-2753] Launching Animation 끊김 현상 수정

원인 : 애니메이션 이미지의 첫프레임과 마지막 프레임을 분리하여 타이밍
별로 3단계 이미징 하는데 마지막 이미지를 표기하는 타이밍이 실제
애니메이션 시간과 맞지 않음
대책: 마지막 이미지는 교체 필요없음. 애니메이션 종료시 마지막 프레임이
표시되므로, 이미지 교체를 2단계로 축소

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

@@ -1,45 +1,28 @@
-import React, {
-  useCallback,
-  useEffect,
-  useMemo,
-  useRef,
-  useState,
-} from 'react';
+import React, { useCallback, useEffect, useMemo, useRef, useState } from "react";
 
-import classNames from 'classnames';
-import {
-  useDispatch,
-  useSelector,
-} from 'react-redux';
+import classNames from "classnames";
+import { useDispatch, useSelector } from "react-redux";
 
-import { Job } from '@enact/core/util';
-import { Panel } from '@enact/sandstone/Panels';
-import Region from '@enact/sandstone/Region';
-import Spotlight from '@enact/spotlight';
-import Cancelable from '@enact/ui/Cancelable';
+import { Job } from "@enact/core/util";
+import { Panel } from "@enact/sandstone/Panels";
+import Region from "@enact/sandstone/Region";
+import Spotlight from "@enact/spotlight";
+import Cancelable from "@enact/ui/Cancelable";
 
-import LoadingPreloadImage
-  from '../../../assets/images/intro/splash_02_stop.webp';
-import LoadingAnimation from '../../../assets/images/intro/splash_03_end.webp';
-import LoadingCompleteImage
-  from '../../../assets/images/intro/splash_04_end.webp';
-import LoadingShopOnTvImage from '../../../assets/images/intro/splash_end.jpg';
-import {
-  changeAppStatus,
-  loadingComplete,
-} from '../../actions/commonActions';
-import CustomImage from '../../components/CustomImage/CustomImage';
-import Loader from '../../components/Loader/Loader';
-import PreloadImage from '../../components/PreloadImage/PreloadImage';
-import TPopUp from '../../components/TPopUp/TPopUp';
-import { $L } from '../../utils/helperMethods';
-import css from './LoadingPanel.module.less';
+import LoadingPreloadImage from "../../../assets/images/intro/splash_02_stop.webp";
+import LoadingAnimation from "../../../assets/images/intro/splash_03_end.webp";
+import LoadingCompleteImage from "../../../assets/images/intro/splash_04_end.webp";
+import LoadingShopOnTvImage from "../../../assets/images/intro/splash_end.jpg";
+import { changeAppStatus, loadingComplete } from "../../actions/commonActions";
+import CustomImage from "../../components/CustomImage/CustomImage";
+import Loader from "../../components/Loader/Loader";
+import PreloadImage from "../../components/PreloadImage/PreloadImage";
+import TPopUp from "../../components/TPopUp/TPopUp";
+import { $L } from "../../utils/helperMethods";
+import css from "./LoadingPanel.module.less";
+import useWhyDidYouUpdate from "../../hooks/useWhyDidYouUpdate";
 
-const loadingImages = [
-  LoadingPreloadImage,
-  LoadingAnimation,
-  LoadingCompleteImage,
-];
+const loadingImages = [LoadingPreloadImage, LoadingAnimation, LoadingCompleteImage];
 
 const MIN_SHOWING_TIME = { launching: 4500, wait: 300, default: 1000 };
 const MAX_SHOWING_TIME = 60000;
@@ -47,32 +30,29 @@ const MAX_SHOWING_TIME_UNLIMITED = Number.MAX_SAFE_INTEGER;
 const DUMMY_DELAY = 1000;
 const HIDING_TIME = 300;
 
-const CancelablePanel = Cancelable(
-  { modal: true, onCancel: "handleCancel" },
-  Panel
-);
+const CancelablePanel = Cancelable({ modal: true, onCancel: "handleCancel" }, Panel);
 
 let minShowingTimeJob, hidingJob, maxShowingTimeJob;
 
 export default function LoadingPanel({ showLoadingPanel, ...rest }) {
+  const { USE_STATE, USE_SELECTOR } = useWhyDidYouUpdate("LoadingPanel", {
+    showLoadingPanel,
+    ...rest,
+  });
   const dispatch = useDispatch();
-  const [showingStatus, setShowingStatus] = useState({
+  const [showingStatus, setShowingStatus] = USE_STATE("showingStatus", {
     showing: true,
     hiding: false,
   });
-  const [loadingSign, setLoadingSign] = useState("");
-  const [loadingType, setLoadingType] = useState("wait");
-  const [loadingImage, setLoadingImage] = useState("");
-  const [readyToAni, setReadyToAni] = useState(false);
-  const [readyToHide, setReadyToHide] = useState(false);
+  const [loadingType, setLoadingType] = USE_STATE("loadingType", "wait");
+  const [readyToAni, setReadyToAni] = USE_STATE("readyToAni", false);
+  const [readyToHide, setReadyToHide] = USE_STATE("readyToHide", false);
 
-  const [loadingStep, setLoadingStep] = useState(0);
-  const [isVisible, setIsVisible] = useState(false);
-  const webOSVersion = useSelector(
-    (state) => state.common.appStatus?.webOSVersion
-  );
+  const [loadingStep, setLoadingStep] = USE_STATE("loadingStep", 0);
+  const [isVisible, setIsVisible] = USE_STATE("isVisible", false);
+  const webOSVersion = USE_SELECTOR("webOSVersion", (state) => state.common.appStatus?.webOSVersion);
 
-  const httpHeader = useSelector((state) => state.common.httpHeader);
+  const httpHeader = USE_SELECTOR("httpHeader", (state) => state.common.httpHeader);
   const deviceCountryCode = httpHeader?.["X-Device-Country"] || "";
 
   const resumeSpotlightTimeoutRef = useRef(null);
@@ -126,6 +106,7 @@ export default function LoadingPanel({ showLoadingPanel, ...rest }) {
       } else {
         setReadyToHide(false);
         setReadyToAni(false);
+
         minShowingTimeJob && minShowingTimeJob.stop();
         hidingJob && hidingJob.stop();
         maxShowingTimeJob && maxShowingTimeJob.stop();
@@ -156,39 +137,13 @@ export default function LoadingPanel({ showLoadingPanel, ...rest }) {
   useEffect(() => {
     if (showLoadingPanel.show) {
       if (!maxShowingTimeJob) {
-        maxShowingTimeJob = new Job(
-          () => {
-            setShowingStatus({ showing: false, hiding: true });
-          },
-          showLoadingPanel.type === "wait"
-            ? MAX_SHOWING_TIME_UNLIMITED
-            : MAX_SHOWING_TIME
-        );
+        maxShowingTimeJob = new Job(() => {
+          setShowingStatus({ showing: false, hiding: true });
+        });
       }
-
-      maxShowingTimeJob.start();
+      maxShowingTimeJob.startAfter(showLoadingPanel.type === "wait" ? MAX_SHOWING_TIME_UNLIMITED : MAX_SHOWING_TIME);
 
       setShowingStatus({ showing: true, hiding: false });
-
-      let signText = "",
-        img = "";
-
-      switch (showLoadingPanel.type) {
-        case "launching": {
-          signText = $L("Loading");
-          img = LoadingAnimation;
-          break;
-        }
-
-        case "wait": {
-          signText = $L("Please wait");
-          img = LoadingAnimation;
-          break;
-        }
-      }
-
-      setLoadingSign(signText);
-      setLoadingImage(img);
       setLoadingType(showLoadingPanel.type);
     }
   }, [showLoadingPanel]);
@@ -232,14 +187,11 @@ export default function LoadingPanel({ showLoadingPanel, ...rest }) {
   useEffect(() => {
     let timer;
     if (isVisible) {
-      if (loadingStep < 2) {
-        timer = setTimeout(
-          () => {
-            setIsVisible(false); // 다음 이미지를 로드하기 전에 숨김
-            setLoadingStep((prevStep) => prevStep + 1);
-          },
-          loadingStep === 0 ? 1000 : loadingStep === 1 ? 1500 : 2000
-        );
+      if (loadingStep < 1) {
+        timer = setTimeout(() => {
+          setIsVisible(false); // 다음 이미지를 로드하기 전에 숨김
+          setLoadingStep((prevStep) => prevStep + 1);
+        }, 1000);
       } else {
         return;
       }
@@ -247,11 +199,6 @@ export default function LoadingPanel({ showLoadingPanel, ...rest }) {
     return () => clearTimeout(timer);
   }, [isVisible, loadingStep]);
 
-  // const getImageSrc = () => {
-  //   if (webOSVersion && Number(webOSVersion) < 5) return LoadingCompleteImage;
-  //   else return loadingImages[loadingStep];
-  // };
-
   const renderImages = useCallback(() => {
     switch (loadingType) {
       case "launching":
@@ -265,14 +212,9 @@ export default function LoadingPanel({ showLoadingPanel, ...rest }) {
                 alt="Loading Image"
               />
             ) : webOSVersion && Number(webOSVersion) < 5 ? ( // webOs5.0 미만 loading image
-              <img
-                className={css.fullpageImage}
-                src={LoadingCompleteImage}
-                onLoad={handleLoad}
-                alt="Loading Image"
-              />
+              <img className={css.fullpageImage} src={LoadingCompleteImage} onLoad={handleLoad} alt="Loading Image" />
             ) : (
-              loadingStep < 3 && ( // normal loading image
+              loadingStep < 2 && ( // normal loading image
                 <img
                   className={css.fullpageImage}
                   src={loadingImages[loadingStep]}
@@ -295,23 +237,13 @@ export default function LoadingPanel({ showLoadingPanel, ...rest }) {
     }
   }, [loadingType, loadingStep, deviceCountryCode, webOSVersion]);
 
-  const hidingStyle = showingStatus.hiding
-    ? { transition: "opacity " + HIDING_TIME + "ms ease", opacity: 0 }
-    : {};
+  const hidingStyle = showingStatus.hiding ? { transition: "opacity " + HIDING_TIME + "ms ease", opacity: 0 } : {};
 
   if (showingStatus.showing || showingStatus.hiding) {
     return (
       <Region title={"LG Shoptime logo"} aria-label="LG Shoptime logo">
-        <CancelablePanel
-          {...rest}
-          className={css.panel}
-          style={hidingStyle}
-          handleCancel={handleCancel}
-        >
-          <PreloadImage
-            preloadImages={[loadingImage]}
-            onLoadComplete={onPreImageLoadComplete}
-          />
+        <CancelablePanel {...rest} className={css.panel} style={hidingStyle} handleCancel={handleCancel}>
+          <PreloadImage preloadImages={loadingImages} onLoadComplete={onPreImageLoadComplete} />
           {readyToAni && (
             <div
               className={classNames(