next and prev page
This commit is contained in:
hamid zarghami
@@ -34,6 +34,7 @@ interface PageFlipAPI {
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flipNext: () => void;
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flipPrev: () => void;
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turnToPage: (page: number) => void;
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getCurrentPageIndex?: () => number;
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}
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interface FlipBookInstance {
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@@ -44,6 +45,33 @@ interface FlipEvent {
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data: number;
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}
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type PageFlipInitEvent = { data: { page: number; mode: string } };
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type PageFlipStateEvent = { data: string };
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/** مختصات داخلی رندر کتاب (همان فضایی که getBoundsRect و flipNext استفاده میکنند) */
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type FlipBookRect = { left: number; top: number; width: number; height: number; pageWidth: number };
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type PageFlipWithFlipController = PageFlipAPI & {
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getBoundsRect: () => FlipBookRect;
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getFlipController: () => { flip: (p: { x: number; y: number }) => void };
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};
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/**
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* page-flip داخل flipPrev با x=10 ثابت میزند؛ با disableFlipByClick آزمایش گوشه رد میشود
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* (چون bookPos.x = 10 - rect.left معمولاً ≤ 0). flipNext همان rect.left را جمع میکند.
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*/
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function triggerFlipPrev(api: PageFlipWithFlipController | undefined) {
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if (!api?.getBoundsRect || !api.getFlipController) {
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api?.flipPrev();
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return;
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}
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const rect = api.getBoundsRect();
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api.getFlipController().flip({
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x: rect.left + 12,
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y: rect.top + 2,
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});
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}
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/**
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* کامپوننت اصلی کتابخوان با استفاده از react-pageflip
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* این کامپوننت از HTMLFlipBook استفاده میکند که یک wrapper برای PageFlip است
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@@ -51,6 +79,7 @@ interface FlipEvent {
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*/
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const BookViewer: FC<BookViewerProps> = ({ pages, catalogSize }) => {
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const bookRef = useRef<FlipBookInstance | null>(null);
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const pageFlipHandlerRef = useRef<(e: FlipEvent) => void>(() => {});
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const [currentPage, setCurrentPage] = useState(0);
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const isDesktop = useIsDesktop();
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@@ -189,6 +218,40 @@ const BookViewer: FC<BookViewerProps> = ({ pages, catalogSize }) => {
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setCurrentPage(pageNum);
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}, [pages.length, playPageFlipSound]);
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pageFlipHandlerRef.current = handlePageFlip;
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const onFlipForwarded = useCallback((e: FlipEvent) => {
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pageFlipHandlerRef.current(e);
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}, []);
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const syncPageIndexFromBook = useCallback(() => {
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const api = bookRef.current?.pageFlip();
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const idx = api?.getCurrentPageIndex?.();
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if (typeof idx !== 'number' || pages.length <= 0) return;
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const clamped = Math.max(0, Math.min(idx, pages.length - 1));
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setCurrentPage(clamped);
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}, [pages.length]);
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const handleBookInit = useCallback(
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(e: PageFlipInitEvent) => {
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const p = e.data?.page;
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if (typeof p !== 'number' || pages.length <= 0) return;
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const clamped = Math.max(0, Math.min(p, pages.length - 1));
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setCurrentPage(clamped);
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lastFlipPageRef.current = clamped;
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},
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[pages.length]
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);
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/** بعد از اتمام انیمیشن، ایندکس واقعی کتاب را میگیریم (RTL روی روت کتاب مختصات page-flip را بههم میزند) */
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const handleChangeState = useCallback(
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(e: PageFlipStateEvent) => {
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if (e.data !== 'read') return;
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syncPageIndexFromBook();
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},
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[syncPageIndexFromBook]
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);
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const goToNextPage = useCallback(() => {
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if (currentPage < pages.length - 1) {
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bookRef.current?.pageFlip()?.flipNext();
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@@ -196,15 +259,15 @@ const BookViewer: FC<BookViewerProps> = ({ pages, catalogSize }) => {
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}, [currentPage, pages.length]);
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const goToPrevPage = useCallback(() => {
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if (currentPage > 0) {
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bookRef.current?.pageFlip()?.flipPrev();
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}
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if (currentPage <= 0) return;
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const api = bookRef.current?.pageFlip() as PageFlipWithFlipController | undefined;
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triggerFlipPrev(api);
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}, [currentPage]);
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const handleLinkClick = useCallback((linkUrl: string) => {
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if (linkUrl.startsWith('page://')) {
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const action = linkUrl.replace('page://', '');
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const pageFlipAPI = bookRef.current?.pageFlip();
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const pageFlipAPI = bookRef.current?.pageFlip() as PageFlipWithFlipController | undefined;
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if (!pageFlipAPI) return;
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@@ -216,7 +279,7 @@ const BookViewer: FC<BookViewerProps> = ({ pages, catalogSize }) => {
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// رفتن به صفحه اول
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const flipToFirst = () => {
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if (currentPage > 0) {
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pageFlipAPI.flipPrev();
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triggerFlipPrev(pageFlipAPI);
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setTimeout(() => {
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setCurrentPage(prev => {
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if (prev > 1) {
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@@ -262,7 +325,7 @@ const BookViewer: FC<BookViewerProps> = ({ pages, catalogSize }) => {
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flipToTarget(remaining - 1);
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}, 300);
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} else {
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pageFlipAPI.flipPrev();
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triggerFlipPrev(pageFlipAPI);
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setTimeout(() => {
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setCurrentPage(prev => prev - 1);
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flipToTarget(remaining + 1);
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@@ -302,7 +365,12 @@ const BookViewer: FC<BookViewerProps> = ({ pages, catalogSize }) => {
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boxShadow: '-5px 0 15px rgba(0, 0, 0, 0.15), 5px 0 15px rgba(0, 0, 0, 0.15)',
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}}
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/>
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{/*
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page-flip با مختصات LTR کار میکند؛ direction:rtl روی روت کتاب باعث ناهماهنگی
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ایندکس/onFlip با دکمهها میشود. محتوای فارسی داخل BookPage با dir=rtl است.
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*/}
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<div
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dir="ltr"
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className="max-w-full flex justify-center"
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style={{ overflow: isDesktop ? 'hidden' : 'visible', isolation: 'isolate' }}
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>
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@@ -331,10 +399,10 @@ const BookViewer: FC<BookViewerProps> = ({ pages, catalogSize }) => {
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showPageCorners={true}
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disableFlipByClick={true}
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className="flipbook-container mx-auto max-w-full"
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style={{
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direction: 'rtl',
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}}
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onFlip={handlePageFlip}
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style={{}}
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onFlip={onFlipForwarded}
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onInit={handleBookInit}
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onChangeState={handleChangeState}
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>
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{pages.map((page) => (
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<BookPage
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@@ -355,11 +423,11 @@ const BookViewer: FC<BookViewerProps> = ({ pages, catalogSize }) => {
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<button
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type="button"
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onClick={goToNextPage}
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disabled={currentPage <= 0}
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disabled={currentPage >= pages.length - 1}
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className="p-2 md:p-2 min-h-11 min-w-11 md:min-h-0 md:min-w-0 inline-flex items-center justify-center rounded-full hover:bg-gray-100 active:bg-gray-200 disabled:opacity-30 disabled:cursor-not-allowed transition-all"
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aria-label="صفحه بعد"
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>
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<ArrowLeft2 size={20} className="text-gray-700 md:w-6 md:h-6" />
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<ArrowRight2 color='black' size={20} className="text-gray-700 md:w-6 md:h-6" />
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</button>
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{/* شماره صفحه */}
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@@ -373,11 +441,11 @@ const BookViewer: FC<BookViewerProps> = ({ pages, catalogSize }) => {
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<button
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type="button"
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onClick={goToPrevPage}
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disabled={currentPage >= pages.length - 1}
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disabled={currentPage <= 0}
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className="p-2 md:p-2 min-h-11 min-w-11 md:min-h-0 md:min-w-0 inline-flex items-center justify-center rounded-full hover:bg-gray-100 active:bg-gray-200 disabled:opacity-30 disabled:cursor-not-allowed transition-all"
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aria-label="صفحه قبل"
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>
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<ArrowRight2 size={20} className="text-gray-700 md:w-6 md:h-6" />
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<ArrowLeft2 color='black' size={20} className="text-gray-700 md:w-6 md:h-6" />
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</button>
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</div>
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</div>
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