feat: scrolling manhwa

apps/NwaifuAnime/src/app/components/reader/reader.component.ts

@@ -6,7 +6,7 @@ import { Chapter, Page } from "../../services/parsers/rulib/rulib.chapter.dto";
 import { IRulibChapter } from "../../services/parsers/rulib/rulib.chapters.dto";
 import { SearchService } from "../../services/search.service";
 import { ScaleImageComponent } from "../scale-image/scale-image.component";
-import { CachedPages } from "./reader.dto";
+import { CachedPage, CachedPages } from "./reader.dto";
 
 @Component({
   selector: "app-reader",
@@ -16,6 +16,7 @@ import { CachedPages } from "./reader.dto";
   imports: [CommonModule, ScaleImageComponent, RouterLink],
 })
 export class ReaderComponent implements AfterViewInit, OnDestroy {
+  //FIXME: Scrolling to top when manhwa
   pages: Page[] = [];
   currentPageIndex = 0;
   cachedPages: CachedPages = {};
@@ -28,7 +29,7 @@ export class ReaderComponent implements AfterViewInit, OnDestroy {
   url = "";
   private fromTowards = false;
   private destroy$ = new Subject<void>();
-  private isManhwa$ = new BehaviorSubject<boolean>(false);
+  isManhwa$ = new BehaviorSubject<boolean>(false);
 
   constructor(
     private route: ActivatedRoute,
@@ -41,6 +42,10 @@ export class ReaderComponent implements AfterViewInit, OnDestroy {
     this.isManhwa$.complete();
   }
 
+  get manhwaPages() {
+    return Object.values(this.cachedPages) as CachedPage[];
+  }
+
   ngAfterViewInit(): void {
     this.route.queryParams.pipe(takeUntil(this.destroy$)).subscribe((params) => {
       const url = params["url"];
@@ -72,7 +77,16 @@ export class ReaderComponent implements AfterViewInit, OnDestroy {
   }
 
   private handleScrollManhwa(event: Event) {
-    console.log(event);
+    if (event.currentTarget) {
+      if (
+        (event.currentTarget as HTMLElement).scrollHeight -
+          (event.currentTarget as HTMLElement).scrollTop <
+        1000
+      ) {
+        this.loadPage(this.currentPageIndex + 1);
+        console.log("load");
+      }
+    }
   }
 
   private initManhwaScroll() {
@@ -117,13 +131,16 @@ export class ReaderComponent implements AfterViewInit, OnDestroy {
     if (index >= 0 && index < this.pages.length) {
       this.currentPageIndex = index;
       this.cachePage(index); // Кэшируем текущую и соседние страницы
-      this.unloadCachedPages(index); // Сгружаем ненужные страницы из кэша
-      const container = document.querySelector("app-reader");
-      if (container) {
-        container.scrollTo({
-          top: 0,
-          behavior: "smooth",
-        });
+      if (!this.isManhwa$.value) this.unloadCachedPages(index); // Сгружаем ненужные страницы из кэша
+      if (!this.isManhwa$.value) {
+        console.log("scroll");
+        const container = document.querySelector("app-reader");
+        if (container) {
+          container.scrollTo({
+            top: 0,
+            behavior: "smooth",
+          });
+        }
       }
       if (!this.cachedPages[index]?.imageData) {
         // Если страница не закэширована, загружаем её
@@ -136,7 +153,7 @@ export class ReaderComponent implements AfterViewInit, OnDestroy {
         // Если страница уже в кэше, просто обновляем изображение
         this.updateImage();
       }
-    } else if (index == this.pages.length) {
+    } else if (index == this.pages.length && !this.isManhwa$.value) {
       const thisChapterIndex = this.chaptersInfo.findIndex((chapter) => {
         return +chapter.number === this.chapterNum && +chapter.volume === this.chapterVol;
       });
@@ -152,7 +169,7 @@ export class ReaderComponent implements AfterViewInit, OnDestroy {
           },
         });
       }
-    } else if (index == -1) {
+    } else if (index == -1 && !this.isManhwa$.value) {
       const thisChapterIndex = this.chaptersInfo.findIndex((chapter) => {
         return +chapter.number === this.chapterNum && +chapter.volume === this.chapterVol;
       });
@@ -200,9 +217,15 @@ export class ReaderComponent implements AfterViewInit, OnDestroy {
       .getImageData(this.searchService.getImageServer() + this.pages[index].url)
       .pipe(
         map((imageData) => {
-          this.cachedPages[index] = {
-            ...this.pages[index],
-            imageData,
+          const url = this.getImageUrl(imageData);
+          this.cachedPages = {
+            ...this.cachedPages,
+            [index]: {
+              ...this.pages[index],
+              imageData,
+              imageUrl: url,
+              isManhwa: +this.pages[index].ratio < 0.5,
+            },
           };
         }),
       );
@@ -218,17 +241,26 @@ export class ReaderComponent implements AfterViewInit, OnDestroy {
     }
   }
 
+  getImageUrl(imageData?: Uint8Array): string {
+    if (!imageData) {
+      return "";
+    }
+    const blob = new Blob([imageData], { type: "image/jpeg" });
+    const urlCreator = window.URL || window.webkitURL;
+    return urlCreator.createObjectURL(blob);
+  }
+
   // Обновляем изображение на странице
   private updateImage() {
     const currentPage = this.cachedPages[this.currentPageIndex];
-    if (currentPage && currentPage.imageData) {
+    if (currentPage && currentPage.imageData && !this.isManhwa$.value) {
       const blob = new Blob([currentPage.imageData], { type: "image/jpeg" });
       const urlCreator = window.URL || window.webkitURL;
       this.imageUrl = urlCreator.createObjectURL(blob);
       const imageUrl = this.imageUrl;
       const image = new Image();
       image.onload = () => {
-        this.isManhwa$.next(image.naturalHeight / image.naturalWidth >= 5);
+        this.isManhwa$.next(currentPage.isManhwa);
         URL.revokeObjectURL(imageUrl);
       };
       image.src = imageUrl;
@@ -244,6 +276,6 @@ export class ReaderComponent implements AfterViewInit, OnDestroy {
   }
 
   get imageContainerClass() {
-    return `${this.isManhwa ? "h-auto" : "h-[70vh]"} w-[95vw] md:w-[700px] md:h-auto`;
+    return `${this.isManhwa ? "h-auto" : "h-[70vh]"} w-[95vw] md:w-[700px] md:h-auto flex flex-col`;
   }
 }