fix(view):修复单页浏览时缩放计算布局错误的问题。

src/components/ComicView.tsx

@@ -13,12 +13,16 @@ export const ComicView: FC = () => {
   const files = useFileListStore(sortedFilesSelector());
   const viewMode = useZoomState.use.viewMode();
   const updateViewHeight = useZoomState.use.updateViewHeight();
-  const [containerRef, { height }] = useMeasure();
+  const updateViewWidth = useZoomState.use.updateViewWidth();
+  const [containerRef, { height, width }] = useMeasure();
   const firstFileId = useMemo(() => head(files)?.id ?? '', [files, files.length]);
 
   useLayoutEffect(() => {
     updateViewHeight(height);
   }, [height]);
+  useLayoutEffect(() => {
+    updateViewWidth(width);
+  }, [width]);
 
   return (
     <Box w="100%" h="100%" sx={{ overflow: 'hidden' }} ref={containerRef}>

src/components/SingleView.tsx

@@ -10,8 +10,8 @@ import { useZoomState } from '../states/zoom';
 export const SingleView: FC = () => {
   const files = useFileListStore.use.files();
   const actives = useFileListStore.use.actives();
-  const zoom = useZoomState.use.currentZoom();
-  const viewHeight = useZoomState.use.viewHeight();
+  const { currentZoom: zoom, viewHeight, viewWidth } = useZoomState();
+  const maxImageWidth = useMemo(() => viewWidth * (zoom / 100), [viewWidth, zoom]);
   const updateActives = useFileListStore.use.updateActiveFiles();
   const ebus = useContext<EventEmitter>(EventBusContext);
   const [pageConRef, { width: pageConWidth }] = useMeasure();
@@ -21,9 +21,9 @@ export const SingleView: FC = () => {
   }, [files, actives]);
   const largerThanView = useMemo(() => {
     if (isNil(activeFile)) return false;
-    let imageHeightAfterZoom = activeFile?.height * (zoom / 100);
+    let imageHeightAfterZoom = activeFile?.height * (maxImageWidth / activeFile?.width);
     return gt(imageHeightAfterZoom, viewHeight);
-  }, [activeFile, viewHeight, zoom]);
+  }, [activeFile, viewHeight, maxImageWidth]);
   const handlePaginationAction = useCallback(
     (event: BaseSyntheticEvent) => {
       let middle = pageConWidth / 2;
@@ -62,7 +62,7 @@ export const SingleView: FC = () => {
             height: largerThanView ? '100%' : viewHeight
           }}
         >
-          <img src={activeFile.path} style={{ width: `${zoom}%` }} />
+          <img src={activeFile.path} style={{ width: maxImageWidth }} />
         </div>
       )}
     </div>

src/states/zoom.ts

@@ -6,11 +6,13 @@ interface ZoomState {
   currentZoom: number;
   viewMode: 'single' | 'continuation';
   viewHeight: number;
+  viewWidth: number;
 }
 
 type ZoomActions = {
   zoom: SyncObjectCallback<number>;
   updateViewHeight: SyncObjectCallback<number>;
+  updateViewWidth: SyncObjectCallback<number>;
   switchViewMode: SyncObjectCallback<'single' | 'continuation'>;
 };
 
@@ -18,7 +20,8 @@ const initialState: ZoomState = {
   autoFit: false,
   currentZoom: 80,
   viewMode: 'continuation',
-  viewHeight: 0
+  viewHeight: 0,
+  viewWidth: 0
 };
 
 export const useZoomState = createStoreHook<ZoomState & ZoomActions>(set => ({
@@ -33,6 +36,11 @@ export const useZoomState = createStoreHook<ZoomState & ZoomActions>(set => ({
       df.viewHeight = height;
     });
   },
+  updateViewWidth(width) {
+    set(df => {
+      df.viewWidth = width;
+    });
+  },
   switchViewMode(mode) {
     set(df => {
       df.viewMode = mode;