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eh-view-enhance.user.js
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eh-view-enhance.user.js
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// ==UserScript==
// @name E HENTAI VIEW ENHANCE
// @name:zh-CN E绅士阅读强化
// @namespace https://github.com/MapoMagpie/eh-view-enhance
// @version 4.5.18
// @author MapoMagpie
// @description Manga Viewer + Downloader, Focus on experience and low load on the site. Support: e-hentai.org | exhentai.org | pixiv.net | 18comic.vip | nhentai.net | hitomi.la | rule34.xxx | danbooru.donmai.us | gelbooru.com | twitter.com | wnacg.com
// @description:zh-CN 漫画阅读 + 下载器，注重体验和对站点的负载控制。支持：e-hentai.org | exhentai.org | pixiv.net | 18comic.vip | nhentai.net | hitomi.la | rule34.xxx | danbooru.donmai.us | gelbooru.com | twitter.com | wnacg.com
// @license MIT
// @icon https://exhentai.org/favicon.ico
// @supportURL https://github.com/MapoMagpie/eh-view-enhance/issues
// @downloadURL https://github.com/MapoMagpie/eh-view-enhance/raw/master/eh-view-enhance.user.js
// @updateURL https://github.com/MapoMagpie/eh-view-enhance/raw/master/eh-view-enhance.meta.js
// @match https://exhentai.org/*
// @match https://e-hentai.org/*
// @match http://exhentai55ld2wyap5juskbm67czulomrouspdacjamjeloj7ugjbsad.onion/*
// @match https://nhentai.net/*
// @match https://steamcommunity.com/id/*/screenshots*
// @match https://hitomi.la/*
// @match https://*.pixiv.net/*
// @match https://yande.re/*
// @match https://konachan.com/*
// @match https://rokuhentai.com/*
// @match https://18comic.org/*
// @match https://18comic.vip/*
// @match https://18-comicfreedom.xyz/*
// @match https://rule34.xxx/*
// @match https://imhentai.xxx/*
// @match https://danbooru.donmai.us/*
// @match https://gelbooru.com/*
// @match https://twitter.com/*
// @match https://x.com/*
// @match https://*.wnacg.com/*
// @match https://*.hm19.lol/*
// @match https://*.hm18.lol/*
// @match https://*.hm17.lol/*
// @match https://hentainexus.com/*
// @require https://cdn.jsdelivr.net/npm/@zip.js/zip.js@2.7.44/dist/zip-full.min.js
// @require https://cdn.jsdelivr.net/npm/file-saver@2.0.5/dist/FileSaver.min.js
// @require https://cdn.jsdelivr.net/npm/hammerjs@2.0.8/hammer.min.js
// @require https://cdn.jsdelivr.net/npm/pica@9.0.1/dist/pica.min.js
// @connect exhentai.org
// @connect e-hentai.org
// @connect hath.network
// @connect exhentai55ld2wyap5juskbm67czulomrouspdacjamjeloj7ugjbsad.onion
// @connect nhentai.net
// @connect hitomi.la
// @connect akamaihd.net
// @connect i.pximg.net
// @connect ehgt.org
// @connect yande.re
// @connect konachan.com
// @connect 18comic.org
// @connect 18comic.vip
// @connect 18-comicfreedom.xyz
// @connect rule34.xxx
// @connect imhentai.xxx
// @connect donmai.us
// @connect gelbooru.com
// @connect twimg.com
// @connect qy0.ru
// @connect wnimg.ru
// @connect hentainexus.com
// @connect tencentcs.com
// @grant GM_getValue
// @grant GM_setValue
// @grant GM_xmlhttpRequest
// ==/UserScript==
(function (fileSaver, pica, zip_js, Hammer) {
'use strict';
var _documentCurrentScript = typeof document !== 'undefined' ? document.currentScript : null;
function _interopNamespaceDefault(e) {
const n = Object.create(null, { [Symbol.toStringTag]: { value: 'Module' } });
if (e) {
for (const k in e) {
if (k !== 'default') {
const d = Object.getOwnPropertyDescriptor(e, k);
Object.defineProperty(n, k, d.get ? d : {
enumerable: true,
get: () => e[k]
});
}
}
}
n.default = e;
return Object.freeze(n);
}
const zip_js__namespace = /*#__PURE__*/_interopNamespaceDefault(zip_js);
// src/native/alias.ts
var _GM_getValue = /* @__PURE__ */ (() => typeof GM_getValue != "undefined" ? GM_getValue : void 0)();
var _GM_setValue = /* @__PURE__ */ (() => typeof GM_setValue != "undefined" ? GM_setValue : void 0)();
var _GM_xmlhttpRequest = /* @__PURE__ */ (() => typeof GM_xmlhttpRequest != "undefined" ? GM_xmlhttpRequest : void 0)();
function uuid() {
return "xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx".replace(/[xy]/g, function(c) {
var r = Math.random() * 16 | 0, v = c == "x" ? r : r & 3 | 8;
return v.toString(16);
});
}
function transactionId() {
return window.btoa(uuid());
}
function defaultConf() {
const screenWidth = window.screen.width;
const colCount = screenWidth > 2500 ? 7 : screenWidth > 1900 ? 6 : 5;
return {
backgroundImage: `TBD`,
colCount,
readMode: "pagination",
autoLoad: true,
fetchOriginal: false,
restartIdleLoader: 2e3,
threads: 3,
downloadThreads: 4,
timeout: 10,
version: CONF_VERSION,
debug: true,
first: true,
reversePages: false,
pageHelperAbTop: "unset",
pageHelperAbLeft: "20px",
pageHelperAbBottom: "20px",
pageHelperAbRight: "unset",
imgScale: 100,
stickyMouse: "disable",
autoPageSpeed: 5,
// pagination readmode = 5, continuous readmode = 1
autoPlay: false,
filenameTemplate: "{number}-{title}",
preventScrollPageTime: 100,
archiveVolumeSize: 1200,
convertTo: "GIF",
autoCollapsePanel: true,
minifyPageHelper: "inBigMode",
keyboards: { inBigImageMode: {}, inFullViewGrid: {}, inMain: {} },
excludeURLs: [],
autoOpenExcludeURLs: [],
muted: false,
volume: 50,
disableCssAnimation: true,
mcInSites: ["18comic"],
paginationIMGCount: 1,
hitomiFormat: "auto",
autoOpen: false,
autoLoadInBackground: true,
reverseMultipleImagesPost: true,
ehentaiTitlePrefer: "japanese",
scrollingSpeed: 30,
id: uuid()
};
}
const CONF_VERSION = "4.4.0";
const CONFIG_KEY = "ehvh_cfg_";
function getStorageMethod() {
if (typeof _GM_getValue === "function" && typeof _GM_setValue === "function") {
return {
setItem: (key, value) => _GM_setValue(key, value),
getItem: (key) => _GM_getValue(key)
};
} else if (typeof localStorage !== "undefined") {
return {
setItem: (key, value) => localStorage.setItem(key, value),
getItem: (key) => localStorage.getItem(key)
};
} else {
throw new Error("No supported storage method found");
}
}
const storage = getStorageMethod();
function getConf() {
let cfgStr = storage.getItem(CONFIG_KEY);
if (cfgStr) {
let cfg2 = JSON.parse(cfgStr);
if (cfg2.version === CONF_VERSION) {
return confHealthCheck(cfg2);
}
}
let cfg = defaultConf();
saveConf(cfg);
return cfg;
}
function confHealthCheck(cf) {
let changed = false;
const defa = defaultConf();
const defaKeys = Object.keys(defa);
defaKeys.forEach((key) => {
if (cf[key] === void 0) {
cf[key] = defa[key];
changed = true;
}
});
const cfKeys = Object.keys(cf);
for (const k of cfKeys) {
if (!defaKeys.includes(k)) {
delete cf[k];
changed = true;
}
}
["pageHelperAbTop", "pageHelperAbLeft", "pageHelperAbBottom", "pageHelperAbRight"].forEach((key) => {
if (cf[key] !== "unset") {
let pos = parseInt(cf[key]);
const screenLimit = key.endsWith("Right") || key.endsWith("Left") ? window.screen.width : window.screen.height;
if (isNaN(pos) || pos < 5 || pos > screenLimit) {
cf[key] = "5px";
changed = true;
}
}
});
if (!["pagination", "continuous"].includes(cf.readMode)) {
cf.readMode = "pagination";
changed = true;
}
if (changed) {
saveConf(cf);
}
return cf;
}
function saveConf(c) {
storage.setItem(CONFIG_KEY, JSON.stringify(c));
}
const conf = getConf();
const ConfigItems = [
{ key: "colCount", typ: "number" },
{ key: "threads", typ: "number" },
{ key: "downloadThreads", typ: "number" },
{ key: "paginationIMGCount", typ: "number" },
{ key: "timeout", typ: "number" },
{ key: "preventScrollPageTime", typ: "number" },
{ key: "autoPageSpeed", typ: "number" },
{ key: "scrollingSpeed", typ: "number" },
{ key: "fetchOriginal", typ: "boolean", gridColumnRange: [1, 6] },
{ key: "autoLoad", typ: "boolean", gridColumnRange: [6, 11] },
{ key: "reversePages", typ: "boolean", gridColumnRange: [1, 6] },
{ key: "autoPlay", typ: "boolean", gridColumnRange: [6, 11] },
{ key: "autoLoadInBackground", typ: "boolean", gridColumnRange: [1, 6] },
{ key: "autoOpen", typ: "boolean", gridColumnRange: [6, 11] },
{ key: "disableCssAnimation", typ: "boolean", gridColumnRange: [1, 11] },
{ key: "autoCollapsePanel", typ: "boolean", gridColumnRange: [1, 11] },
{
key: "readMode",
typ: "select",
options: [
{ value: "pagination", display: "Pagination" },
{ value: "continuous", display: "Continuous" }
]
},
{
key: "stickyMouse",
typ: "select",
options: [
{ value: "enable", display: "Enable" },
{ value: "reverse", display: "Reverse" },
{ value: "disable", display: "Disable" }
]
},
{
key: "minifyPageHelper",
typ: "select",
options: [
{ value: "always", display: "Always" },
{ value: "inBigMode", display: "InBigMode" },
{ value: "never", display: "Never" }
]
},
{ key: "reverseMultipleImagesPost", typ: "boolean", gridColumnRange: [1, 11], displayInSite: /(x.com|twitter.com)\// },
{
key: "hitomiFormat",
typ: "select",
options: [
{ value: "auto", display: "Auto" },
{ value: "avif", display: "Avif" },
{ value: "webp", display: "Webp" },
{ value: "jxl", display: "Jxl" }
],
displayInSite: /hitomi.la\//
},
{
key: "ehentaiTitlePrefer",
typ: "select",
options: [
{ value: "english", display: "English" },
{ value: "japanese", display: "Japanese" }
],
displayInSite: /e[-x]hentai(.*)?.(org|onion)\//
}
];
function evLog(level, msg, ...info) {
if (level === "debug" && !conf.debug)
return;
if (level === "error") {
console.warn((/* @__PURE__ */ new Date()).toLocaleString(), "EHVP:" + msg, ...info);
} else {
console.info((/* @__PURE__ */ new Date()).toLocaleString(), "EHVP:" + msg, ...info);
}
}
class EventManager {
events;
constructor() {
this.events = /* @__PURE__ */ new Map();
}
emit(id, ...args) {
if (!["imf-download-state-change"].includes(id)) {
evLog("debug", "event bus emitted: ", id);
}
const cbs = this.events.get(id);
if (cbs) {
cbs.forEach((cb) => cb(...args));
}
}
subscribe(id, cb) {
evLog("info", "event bus subscribed: ", id);
const cbs = this.events.get(id);
if (cbs) {
cbs.push(cb);
} else {
this.events.set(id, [cb]);
}
}
reset() {
this.events = /* @__PURE__ */ new Map();
}
}
const EBUS = new EventManager();
class Debouncer {
tids;
mode;
lastExecTime;
constructor(mode) {
this.tids = {};
this.lastExecTime = Date.now();
this.mode = mode || "debounce";
}
addEvent(id, event, timeout) {
if (this.mode === "throttle") {
const now = Date.now();
if (now - this.lastExecTime >= timeout) {
this.lastExecTime = now;
event();
}
} else if (this.mode === "debounce") {
window.clearTimeout(this.tids[id]);
this.tids[id] = window.setTimeout(event, timeout);
}
}
}
const HOST_REGEX = /\/\/([^\/]*)\//;
function xhrWapper(url, respType, cb, timeout) {
return _GM_xmlhttpRequest({
method: "GET",
url,
timeout: timeout || 6e5,
responseType: respType,
nocache: false,
revalidate: false,
// fetch: false,
headers: {
"Host": HOST_REGEX.exec(url)?.[1] || window.location.host,
// "User-Agent": "Mozilla/5.0 (X11; Linux x86_64; rv:106.0) Gecko/20100101 Firefox/106.0",
"Accept": "image/avif,image/webp,*/*",
// "Accept-Language": "en-US,en;q=0.5",
// "Accept-Encoding": "gzip, deflate, br",
// "Connection": "keep-alive",
"Referer": window.location.href,
"X-Alt-Referer": window.location.href,
// "Sec-Fetch-Dest": "image",
// "Sec-Fetch-Mode": "no-cors",
// "Sec-Fetch-Site": "cross-site",
"Cache-Control": "public, max-age=2592000, immutable"
},
...cb
}).abort;
}
function fetchImage(url) {
return new Promise((resolve, reject) => {
xhrWapper(url, "blob", {
onload: (response) => resolve(response.response),
onerror: (error) => reject(error)
}, 10 * 1e3);
});
}
var FetchState = /* @__PURE__ */ ((FetchState2) => {
FetchState2[FetchState2["FAILED"] = 0] = "FAILED";
FetchState2[FetchState2["URL"] = 1] = "URL";
FetchState2[FetchState2["DATA"] = 2] = "DATA";
FetchState2[FetchState2["DONE"] = 3] = "DONE";
return FetchState2;
})(FetchState || {});
class IMGFetcher {
node;
originURL;
stage = 1 /* URL */;
tryTimes = 0;
lock = false;
/// 0: not rendered, 1: rendered tumbinal, 2: rendered big image
rendered = 0;
data;
contentType;
blobUrl;
downloadState;
downloadBar;
timeoutId;
matcher;
chapterIndex;
randomID;
constructor(root, matcher, chapterIndex) {
this.node = root;
this.node.onclick = () => EBUS.emit("imf-on-click", this);
this.downloadState = { total: 100, loaded: 0, readyState: 0 };
this.matcher = matcher;
this.chapterIndex = chapterIndex;
this.randomID = chapterIndex + Math.random().toString(16).slice(2) + this.node.href;
}
create() {
return this.node.create();
}
// 刷新下载状态
setDownloadState(newState) {
this.downloadState = { ...this.downloadState, ...newState };
this.node.progress(this.downloadState);
EBUS.emit("imf-download-state-change", this);
}
async start(index) {
if (this.lock)
return;
this.lock = true;
try {
this.node.changeStyle("fetching");
await this.fetchImage();
this.node.changeStyle("fetched");
EBUS.emit("imf-on-finished", index, true, this);
} catch (error) {
this.node.changeStyle("failed", error.toString());
evLog("error", `IMG-FETCHER ERROR:`, error);
this.stage = 0 /* FAILED */;
EBUS.emit("imf-on-finished", index, false, this);
} finally {
this.lock = false;
}
}
retry() {
if (this.stage !== 3 /* DONE */) {
this.node.changeStyle();
this.stage = 1 /* URL */;
}
}
async fetchImage() {
const fetchMachine = async () => {
try {
switch (this.stage) {
case 0 /* FAILED */:
case 1 /* URL */:
const meta = await this.fetchOriginMeta();
this.originURL = meta.url;
if (meta.title) {
this.node.title = meta.title;
if (this.node.imgElement) {
this.node.imgElement.title = meta.title;
}
}
this.node.href = meta.href || this.node.href;
this.stage = 2 /* DATA */;
return fetchMachine();
case 2 /* DATA */:
const ret = await this.fetchImageData();
[this.data, this.contentType] = ret;
[this.data, this.contentType] = await this.matcher.processData(this.data, this.contentType, this.originURL);
this.blobUrl = URL.createObjectURL(new Blob([this.data], { type: this.contentType }));
this.node.onloaded(this.blobUrl, this.contentType);
if (this.rendered === 2) {
this.node.render();
}
this.stage = 3 /* DONE */;
case 3 /* DONE */:
return null;
}
} catch (error) {
this.stage = 0 /* FAILED */;
return error;
}
};
this.tryTimes = 0;
let err;
while (this.tryTimes < 3) {
err = await fetchMachine();
if (err === null)
return;
this.tryTimes++;
evLog("error", `fetch image error, try times: ${this.tryTimes}, error:`, err);
}
throw err;
}
async fetchOriginMeta() {
try {
return await this.matcher.fetchOriginMeta(this.node.href, this.tryTimes > 0 || this.stage === 0 /* FAILED */, this.chapterIndex);
} catch (error) {
throw new Error(`fetch big image url error: ${error}`);
}
}
async fetchImageData() {
const data = await this.fetchBigImage();
if (data == null) {
throw new Error(`fetch image data is empty, image url:${this.originURL}`);
}
return data.arrayBuffer().then((buffer) => [new Uint8Array(buffer), data.type]);
}
render() {
switch (this.rendered) {
case 0:
case 1:
this.node.render();
this.rendered = 2;
if (this.stage === 3 /* DONE */)
this.node.changeStyle("fetched");
break;
}
}
unrender() {
if (this.rendered === 1 || this.rendered === 0)
return;
this.rendered = 1;
this.node.unrender();
}
async fetchBigImage() {
if (this.originURL?.startsWith("blob:")) {
return await fetch(this.originURL).then((resp) => resp.blob());
}
const imgFetcher = this;
return new Promise(async (resolve, reject) => {
const debouncer = new Debouncer();
let abort;
const timeout = () => {
debouncer.addEvent("XHR_TIMEOUT", () => {
reject(new Error("timeout"));
abort();
}, conf.timeout * 1e3);
};
abort = xhrWapper(imgFetcher.originURL, "blob", {
onload: function(response) {
let data = response.response;
if (data.type.startsWith("text/html")) {
reject(new Error(`expect image data, fetched wrong type: ${data.type}`));
return;
}
try {
imgFetcher.setDownloadState({ readyState: response.readyState });
} catch (error) {
evLog("error", "warn: fetch big image data onload setDownloadState error:", error);
}
resolve(data);
},
onerror: function(response) {
reject(new Error(`response status:${response.status}, error:${response.error}, response:${response.response}`));
},
onprogress: function(response) {
imgFetcher.setDownloadState({ total: response.total, loaded: response.loaded, readyState: response.readyState });
timeout();
},
onloadstart: function() {
imgFetcher.setDownloadState(imgFetcher.downloadState);
}
});
timeout();
});
}
}
class Crc32 {
crc = -1;
table = this.makeTable();
makeTable() {
let i;
let j;
let t;
let table = [];
for (i = 0; i < 256; i++) {
t = i;
for (j = 0; j < 8; j++) {
t = t & 1 ? t >>> 1 ^ 3988292384 : t >>> 1;
}
table[i] = t;
}
return table;
}
append(data) {
let crc = this.crc | 0;
let table = this.table;
for (let offset = 0, len = data.length | 0; offset < len; offset++) {
crc = crc >>> 8 ^ table[(crc ^ data[offset]) & 255];
}
this.crc = crc;
}
get() {
return ~this.crc;
}
}
class ZipObject {
level;
nameBuf;
comment;
header;
offset;
directory;
file;
crc;
compressedLength;
uncompressedLength;
volumeNo;
constructor(file, volumeNo) {
this.level = 0;
const encoder = new TextEncoder();
this.nameBuf = encoder.encode(file.name.trim());
this.comment = encoder.encode("");
this.header = new DataHelper(26);
this.offset = 0;
this.directory = false;
this.file = file;
this.crc = new Crc32();
this.compressedLength = 0;
this.uncompressedLength = 0;
this.volumeNo = volumeNo;
}
}
class DataHelper {
array;
view;
constructor(byteLength) {
let uint8 = new Uint8Array(byteLength);
this.array = uint8;
this.view = new DataView(uint8.buffer);
}
}
class Zip {
// default 1.5GB
volumeSize = 1610612736;
accumulatedSize = 0;
volumes = 1;
currVolumeNo = -1;
files = [];
currIndex = -1;
offset = 0;
offsetInVolume = 0;
curr;
date;
writer;
close = false;
constructor(settings) {
if (settings?.volumeSize) {
this.volumeSize = settings.volumeSize;
}
this.date = new Date(Date.now());
this.writer = async () => {
};
}
setWriter(writer) {
this.writer = writer;
}
add(file) {
const fileSize = file.size();
this.accumulatedSize += fileSize;
if (this.accumulatedSize > this.volumeSize) {
this.volumes++;
this.accumulatedSize = fileSize;
}
this.files.push(new ZipObject(file, this.volumes - 1));
}
async next() {
this.currIndex++;
this.curr = this.files[this.currIndex];
if (this.curr) {
if (this.curr.volumeNo > this.currVolumeNo) {
this.currIndex--;
this.offsetInVolume = 0;
return true;
}
this.curr.offset = this.offsetInVolume;
await this.writeHeader();
await this.writeContent();
await this.writeFooter();
this.offset += this.offsetInVolume - this.curr.offset;
} else if (!this.close) {
this.close = true;
await this.closeZip();
} else {
return true;
}
return false;
}
async writeHeader() {
if (!this.curr)
return;
const curr = this.curr;
let data = new DataHelper(30 + curr.nameBuf.length);
let header = curr.header;
if (curr.level !== 0 && !curr.directory) {
header.view.setUint16(4, 2048);
}
header.view.setUint32(0, 335546376);
header.view.setUint16(6, (this.date.getHours() << 6 | this.date.getMinutes()) << 5 | this.date.getSeconds() / 2, true);
header.view.setUint16(8, (this.date.getFullYear() - 1980 << 4 | this.date.getMonth() + 1) << 5 | this.date.getDate(), true);
header.view.setUint16(22, curr.nameBuf.length, true);
data.view.setUint32(0, 1347093252);
data.array.set(header.array, 4);
data.array.set(curr.nameBuf, 30);
this.offsetInVolume += data.array.length;
await this.writer(data.array);
}
async writeContent() {
const curr = this.curr;
const reader = (await curr.file.stream()).getReader();
const writer = this.writer;
async function pump() {
const chunk = await reader.read();
if (chunk.done) {
return;
}
const data = chunk.value;
curr.crc.append(data);
curr.uncompressedLength += data.length;
curr.compressedLength += data.length;
writer(data);
return await pump();
}
await pump();
}
async writeFooter() {
if (!this.curr)
return;
const curr = this.curr;
var footer = new DataHelper(16);
footer.view.setUint32(0, 1347094280);
if (curr.crc) {
curr.header.view.setUint32(10, curr.crc.get(), true);
curr.header.view.setUint32(14, curr.compressedLength, true);
curr.header.view.setUint32(18, curr.uncompressedLength, true);
footer.view.setUint32(4, curr.crc.get(), true);
footer.view.setUint32(8, curr.compressedLength, true);
footer.view.setUint32(12, curr.uncompressedLength, true);
}
await this.writer(footer.array);
this.offsetInVolume += curr.compressedLength + 16;
if (curr.compressedLength !== curr.file.size()) {
evLog("error", "WRAN: read length:", curr.compressedLength, " origin size:", curr.file.size(), ", title: ", curr.file.name);
}
}
async closeZip() {
const fileCount = this.files.length;
let centralDirLength = 0;
let idx = 0;
for (idx = 0; idx < fileCount; idx++) {
const file = this.files[idx];
centralDirLength += 46 + file.nameBuf.length + file.comment.length;
}
const data = new DataHelper(centralDirLength + 22);
let dataOffset = 0;
for (idx = 0; idx < fileCount; idx++) {
const file = this.files[idx];
data.view.setUint32(dataOffset, 1347092738);
data.view.setUint16(dataOffset + 4, 5120);
data.array.set(file.header.array, dataOffset + 6);
data.view.setUint16(dataOffset + 32, file.comment.length, true);
data.view.setUint16(dataOffset + 34, file.volumeNo, true);
data.view.setUint32(dataOffset + 42, file.offset, true);
data.array.set(file.nameBuf, dataOffset + 46);
data.array.set(file.comment, dataOffset + 46 + file.nameBuf.length);
dataOffset += 46 + file.nameBuf.length + file.comment.length;
}
data.view.setUint32(dataOffset, 1347093766);
data.view.setUint16(dataOffset + 4, this.currVolumeNo, true);
data.view.setUint16(dataOffset + 6, this.currVolumeNo, true);
data.view.setUint16(dataOffset + 8, fileCount, true);
data.view.setUint16(dataOffset + 10, fileCount, true);
data.view.setUint32(dataOffset + 12, centralDirLength, true);
data.view.setUint32(dataOffset + 16, this.offsetInVolume, true);
await this.writer(data.array);
}
nextReadableStream() {
this.currVolumeNo++;
if (this.currVolumeNo >= this.volumes) {
return;
}
const zip = this;
return new ReadableStream({
start(controller) {
zip.setWriter(async (chunk) => controller.enqueue(chunk));
},
async pull(controller) {
await zip.next().then((done) => done && controller.close());
}
});
}
}
class DownloaderCanvas {
canvas;
mousemoveState;
ctx;
queue;
rectSize;
rectGap;
columns;
padding;
scrollTop;
scrollSize;
debouncer;
onClick;
cherryPick;
constructor(canvas, queue, cherryPick) {
this.queue = queue;
this.cherryPick = cherryPick;
if (!canvas) {
throw new Error("canvas not found");
}
this.canvas = canvas;
this.canvas.addEventListener(
"wheel",
(event) => this.onwheel(event.deltaY)
);
this.mousemoveState = { x: 0, y: 0 };
this.canvas.addEventListener("mousemove", (event) => {
this.mousemoveState = { x: event.offsetX, y: event.offsetY };
this.drawDebouce();
});
this.canvas.addEventListener("click", (event) => {
this.mousemoveState = { x: event.offsetX, y: event.offsetY };
const index = this.computeDrawList()?.find(
(state) => state.selected
)?.index;
if (index !== void 0) {
EBUS.emit("downloader-canvas-on-click", index);
}
});
this.ctx = this.canvas.getContext("2d");
this.rectSize = 12;
this.rectGap = 6;
this.columns = 15;
this.padding = 7;
this.scrollTop = 0;
this.scrollSize = 10;
this.debouncer = new Debouncer();
EBUS.subscribe("imf-download-state-change", () => this.drawDebouce());
EBUS.subscribe("downloader-canvas-resize", () => this.resize());
}
resize(parent) {
parent = parent || this.canvas.parentElement;
this.canvas.width = Math.floor(parent.offsetWidth);
this.canvas.height = Math.floor(parent.offsetHeight);
this.columns = Math.ceil((this.canvas.width - this.padding * 2 - this.rectGap) / (this.rectSize + this.rectGap));
this.draw();
}
onwheel(deltaY) {
const [_, h] = this.getWH();
const clientHeight = this.computeClientHeight();
if (clientHeight > h) {
deltaY = deltaY >> 1;
this.scrollTop += deltaY;
if (this.scrollTop < 0)
this.scrollTop = 0;
if (this.scrollTop + h > clientHeight + 20)
this.scrollTop = clientHeight - h + 20;
this.draw();
}
}
drawDebouce() {
this.debouncer.addEvent("DOWNLOADER-DRAW", () => this.draw(), 20);
}
computeDrawList() {
const list = [];
const picked = this.cherryPick();
const [_, h] = this.getWH();
const startX = this.computeStartX();
const startY = -this.scrollTop + this.padding;
for (let i = 0, row = -1; i < this.queue.length; i++) {
const currCol = i % this.columns;
if (currCol == 0) {
row++;
}
const atX = startX + (this.rectSize + this.rectGap) * currCol;
const atY = startY + (this.rectSize + this.rectGap) * row;
if (atY + this.rectSize < 0) {
continue;
}
if (atY > h) {
break;
}
list.push({
index: i,
x: atX,
y: atY,
selected: this.isSelected(atX, atY),
disabled: !picked.picked(i)
});
}
return list;
}
// this function should be called by drawDebouce
draw() {
const [w, h] = this.getWH();
this.ctx.clearRect(0, 0, w, h);
const drawList = this.computeDrawList();
for (const node of drawList) {
this.drawSmallRect(
node.x,
node.y,
this.queue[node.index],
node.index === this.queue.currIndex,
node.selected,
node.disabled
);
}
}
computeClientHeight() {
return Math.ceil(this.queue.length / this.columns) * (this.rectSize + this.rectGap) - this.rectGap;
}
scrollTo(index) {
const clientHeight = this.computeClientHeight();
const [_, h] = this.getWH();
if (clientHeight <= h) {
return;
}
const rowNo = Math.ceil((index + 1) / this.columns);
const offsetY = (rowNo - 1) * (this.rectSize + this.rectGap);
if (offsetY > h) {
this.scrollTop = offsetY + this.rectSize - h;
const maxScrollTop = clientHeight - h + 20;
if (this.scrollTop + 20 <= maxScrollTop) {
this.scrollTop += 20;
}
}
}
isSelected(atX, atY) {
return this.mousemoveState.x - atX >= 0 && this.mousemoveState.x - atX <= this.rectSize && this.mousemoveState.y - atY >= 0 && this.mousemoveState.y - atY <= this.rectSize;
}
computeStartX() {
const [w, _] = this.getWH();
const drawW = (this.rectSize + this.rectGap) * this.columns - this.rectGap;
let startX = w - drawW >> 1;
return startX;
}
drawSmallRect(x, y, imgFetcher, isCurr, isSelected, disabled) {
if (disabled) {
this.ctx.fillStyle = "rgba(20, 20, 20, 1)";
} else {
switch (imgFetcher.stage) {
case FetchState.FAILED:
this.ctx.fillStyle = "rgba(250, 50, 20, 0.9)";
break;
case FetchState.URL:
this.ctx.fillStyle = "rgba(200, 200, 200, 0.6)";
break;
case FetchState.DATA:
const percent = imgFetcher.downloadState.loaded / imgFetcher.downloadState.total;
this.ctx.fillStyle = `rgba(${200 + Math.ceil((110 - 200) * percent)}, ${200 + Math.ceil((200 - 200) * percent)}, ${200 + Math.ceil((120 - 200) * percent)}, ${0.6 + Math.ceil((1 - 0.6) * percent)})`;
break;
case FetchState.DONE:
this.ctx.fillStyle = "rgb(110, 200, 120)";
break;
}
}
this.ctx.fillRect(x, y, this.rectSize, this.rectSize);
this.ctx.shadowColor = "#d53";
if (isSelected) {
this.ctx.strokeStyle = "rgb(60, 20, 200)";
this.ctx.lineWidth = 2;
} else if (isCurr) {
this.ctx.strokeStyle = "rgb(255, 60, 20)";
this.ctx.lineWidth = 2;
} else {
this.ctx.strokeStyle = "rgb(90, 90, 90)";
this.ctx.lineWidth = 1;
}
this.ctx.strokeRect(x, y, this.rectSize, this.rectSize);
}
getWH() {
return [this.canvas.width, this.canvas.height];
}
}
const FILENAME_INVALIDCHAR = /[\\/:*?"<>|\n]/g;
class Downloader {
meta;
title;
downloading;
queue;
idleLoader;
pageFetcher;
done = false;
selectedChapters = [];
filenames = /* @__PURE__ */ new Set();
panel;
canvas;