refactor

src/components/reader/pager/PagedPager.tsx

@@ -0,0 +1,111 @@
+/*
+ * Copyright (C) Contributors to the Suwayomi project
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+
+import makeStyles from '@mui/styles/makeStyles';
+import React, { useEffect, useRef } from 'react';
+import Page from '../Page';
+
+const useStyles = makeStyles({
+    reader: {
+        display: 'flex',
+        flexDirection: 'row',
+        justifyContent: 'center',
+        margin: '0 auto',
+        width: '100%',
+        height: '100vh',
+    },
+});
+
+export default function PagedReader(props: IReaderProps) {
+    const {
+        pages, settings, setCurPage, curPage, nextChapter, prevChapter,
+    } = props;
+
+    const classes = useStyles();
+
+    const selfRef = useRef<HTMLDivElement>(null);
+
+    function nextPage() {
+        if (curPage < pages.length - 1) {
+            setCurPage(curPage + 1);
+        } else if (settings.loadNextonEnding) {
+            nextChapter();
+        }
+    }
+
+    function prevPage() {
+        if (curPage > 0) {
+            setCurPage(curPage - 1);
+        } else {
+            prevChapter();
+        }
+    }
+
+    function goLeft() {
+        if (settings.readerType === 'SingleLTR') {
+            prevPage();
+        } else if (settings.readerType === 'SingleRTL') {
+            nextPage();
+        }
+    }
+
+    function goRight() {
+        if (settings.readerType === 'SingleLTR') {
+            nextPage();
+        } else if (settings.readerType === 'SingleRTL') {
+            prevPage();
+        }
+    }
+
+    function keyboardControl(e:KeyboardEvent) {
+        switch (e.code) {
+            case 'Space':
+                e.preventDefault();
+                nextPage();
+                break;
+            case 'ArrowRight':
+                goRight();
+                break;
+            case 'ArrowLeft':
+                goLeft();
+                break;
+            default:
+                break;
+        }
+    }
+
+    function clickControl(e:MouseEvent) {
+        if (e.clientX > window.innerWidth / 2) {
+            goRight();
+        } else {
+            goLeft();
+        }
+    }
+
+    useEffect(() => {
+        document.addEventListener('keydown', keyboardControl);
+        selfRef.current?.addEventListener('click', clickControl);
+
+        return () => {
+            document.removeEventListener('keydown', keyboardControl);
+            selfRef.current?.removeEventListener('click', clickControl);
+        };
+    }, [selfRef, curPage, settings.readerType]);
+
+    return (
+        <div ref={selfRef} className={classes.reader}>
+            <Page
+                key={curPage}
+                index={curPage}
+                onImageLoad={() => {}}
+                src={pages[curPage].src}
+                setCurPage={setCurPage}
+                settings={settings}
+            />
+        </div>
+    );
+}