将网页漫画下载为pdf方便阅读，目前仅适用于如漫画[http://www.rumanhua1.com/]
// ==UserScript==
// @name 网页漫画下载为pdf格式
// @namespace http://tampermonkey.net/
// @version 2.3.0
// @description 将网页漫画下载为pdf方便阅读，目前仅适用于如漫画[http://www.rumanhua1.com/]
// @author MornLight
// @match http://m.rumanhua1.com/*
// @match http://www.rumanhua1.com/*
// @icon https://www.google.com/s2/favicons?sz=64&domain=greasyfork.org
// @grant GM_xmlhttpRequest
// @grant GM_openInTab
// @grant GM_setValue
// @grant GM_getValue
// @connect *
// @require https://cdnjs.cloudflare.com/ajax/libs/jspdf/2.5.1/jspdf.umd.min.js
// @run-at document-end
// @license MIT
// @supportURL https://github.com/duanmorningsir/ComicDownloader
// ==/UserScript==
(function () {
'use strict';
// 1. 样式配置
const STYLES = {
container: {
position: 'fixed',
bottom: '20px',
right: '20px',
zIndex: '9999',
display: 'flex',
flexDirection: 'column',
gap: '16px',
backgroundColor: '#f8fafc',
padding: '20px',
borderRadius: '18px',
boxShadow: '0 4px 24px 0 rgba(60,60,100,0.13)',
maxHeight: '80vh',
overflowY: 'auto',
minWidth: '260px',
border: '1px solid #e0e6ef',
boxSizing: 'border-box',
'@media (max-width: 768px)': {
bottom: '8px',
right: '8px',
left: '8px',
minWidth: 'auto',
width: 'calc(100% - 16px)',
padding: '8px',
gap: '6px',
borderRadius: '10px',
}
},
button: {
padding: '8px 0',
color: '#fff',
border: 'none',
borderRadius: '12px',
cursor: 'pointer',
backgroundColor: '#4CAF50',
boxShadow: '0 1px 4px 0 rgba(76,175,80,0.08)',
fontWeight: 'bold',
fontSize: '15px',
letterSpacing: '0.5px',
transition: 'background 0.2s, box-shadow 0.15s, transform 0.08s',
margin: '4px 0',
outline: 'none',
width: '100%',
minHeight: '36px',
':hover': {
backgroundColor: '#43e97b',
boxShadow: '0 2px 8px 0 rgba(67,233,123,0.18)',
transform: 'translateY(-1px) scale(1.02)'
},
'@media (max-width: 768px)': {
padding: '6px 0',
fontSize: '13px',
borderRadius: '8px',
margin: '3px 0',
minHeight: '28px',
}
},
cancelButton: {
backgroundColor: '#f44336',
fontWeight: 'bold',
fontSize: '15px',
borderRadius: '12px',
boxShadow: '0 1px 4px 0 rgba(244,67,54,0.08)',
margin: '4px 0',
width: '100%',
minHeight: '36px',
':hover': {
backgroundColor: '#ff7e5f',
boxShadow: '0 2px 8px 0 rgba(255,126,95,0.18)',
transform: 'translateY(-1px) scale(1.02)'
},
'@media (max-width: 768px)': {
fontSize: '13px',
borderRadius: '8px',
margin: '3px 0',
minHeight: '28px',
}
},
buttonGroup: {
display: 'flex',
flexDirection: 'column',
gap: '8px',
alignItems: 'center',
marginBottom: '10px',
width: '100%',
},
progressContainer: {
display: 'none',
background: 'rgba(245,247,250,0.85)',
borderRadius: '10px',
padding: '8px 0 2px 0',
margin: '4px 0',
boxShadow: '0 1px 4px 0 rgba(60,60,100,0.06)',
'@media (max-width: 768px)': {
width: '100%',
padding: '4px 0 1px 0',
borderRadius: '7px',
}
},
infoText: {
color: '#4a5568',
fontSize: '15px',
textAlign: 'center',
marginBottom: '10px',
fontWeight: '500',
letterSpacing: '0.5px',
'@media (max-width: 768px)': {
fontSize: '12px',
marginBottom: '5px',
}
},
chapterListContainer: {
marginTop: '10px',
display: 'none',
maxHeight: '50vh',
overflowY: 'auto',
paddingRight: '18px',
boxSizing: 'border-box',
'@media (max-width: 768px)': {
maxHeight: '60vh',
paddingRight: '0',
}
}
};
// 添加响应式样式应用函数
function applyResponsiveStyles(element, styles) {
Object.assign(element.style, styles);
// 检查是否是移动设备
if (window.innerWidth <= 768) {
const mobileStyles = styles['@media (max-width: 768px)'];
if (mobileStyles) {
Object.assign(element.style, mobileStyles);
}
}
}
// 2. 站点适配器相关代码
class SiteAdapter {
isChapterPage() {
throw new Error('必须实现 isChapterPage 方法');
}
isDirectoryPage() {
throw new Error('必须实现 isDirectoryPage 方法');
}
getChapterLinks() {
throw new Error('必须实现 getChapterLinks 方法');
}
getChapterName() { throw new Error('必须实现 getChapterName 方法'); }
getImageElements() { throw new Error('必须实现 getImageElements 方法'); }
getImageUrl(imgElement) { throw new Error('必须实现 getImageUrl 方法'); }
}
class RumanhuaAdapter extends SiteAdapter {
isChapterPage() {
const url = window.location.href;
const chapterPagePattern = /http:\/\/m\.rumanhua1\.com\/[^\/]+\/[^\/]+\.html/;
return chapterPagePattern.test(url);
}
isDirectoryPage() {
const url = window.location.href;
const directoryPagePattern = /http:\/\/m\.rumanhua1\.com\/[^\/]+\/?$/;
return directoryPagePattern.test(url);
}
async getChapterLinks() {
const waitForChapterList = () => {
return new Promise((resolve, reject) => {
let attempts = 0;
const maxAttempts = 10;
const checkForList = () => {
const selectors = [
'.cartoon-box .chaplist-box ul',
'.chaplist-box ul',
'.chapterlistload ul',
'.chapter-list ul',
'.chapterlist ul'
];
for (const selector of selectors) {
const element = document.querySelector(selector);
if (element) {
resolve(element);
return;
}
}
attempts++;
if (attempts >= maxAttempts) {
reject(new Error('未找到章节列表'));
return;
}
setTimeout(checkForList, 500);
};
checkForList();
});
};
try {
const chapterListElement = await waitForChapterList();
const chapterElements = chapterListElement.querySelectorAll('a');
const baseUrl = window.location.origin;
const links = Array.from(chapterElements).map(element => {
const href = element.getAttribute('href');
const url = href.startsWith('http') ? href : baseUrl + href;
const name = element.textContent.trim();
return { url, name };
});
return links;
} catch (error) {
throw error;
}
}
getChapterName() {
const chapterNameElement = document.querySelector('.chaphead-name h1');
return chapterNameElement ? chapterNameElement.textContent.trim() : '未知章节';
}
getImageElements() {
return document.querySelectorAll('.chapter-img-box img');
}
getImageUrl(imgElement) {
if (!imgElement) return null;
const src = imgElement.src || imgElement.dataset.src;
if (!src) return null;
let imageUrl = src.includes('/static/images/load.gif') ? imgElement.dataset.src : src;
if (imageUrl.startsWith('blob:')) {
return imageUrl;
}
if (imageUrl.startsWith('http:')) {
imageUrl = imageUrl.replace('http:', 'https:');
}
return imageUrl;
}
}
class RumanhuaPCAdapter extends SiteAdapter {
isChapterPage() {
const url = window.location.href;
const chapterPagePattern = /http:\/\/www\.rumanhua1\.com\/[^\/]+\/[^\/]+\.html/;
return chapterPagePattern.test(url);
}
isDirectoryPage() {
const url = window.location.href;
return url.includes('www.rumanhua1.com') && !this.isChapterPage();
}
async getChapterLinks() {
const waitForChapterList = () => {
return new Promise((resolve, reject) => {
let attempts = 0;
const maxAttempts = 10;
const checkForList = () => {
const selectors = [
'.chapterlistload ul',
'.cartoon-box .chaplist-box ul',
'.chaplist-box ul',
'.chapter-list ul',
'.chapterlist ul',
'.chapterlistload ul li a'
];
for (const selector of selectors) {
const element = document.querySelector(selector);
if (element) {
resolve(element);
return;
}
}
attempts++;
if (attempts >= maxAttempts) {
reject(new Error('未找到章节列表'));
return;
}
setTimeout(checkForList, 500);
};
checkForList();
});
};
try {
const chapterListElement = await waitForChapterList();
const chapterElements = chapterListElement.querySelectorAll('a');
const baseUrl = window.location.origin;
const links = Array.from(chapterElements).map(element => {
const href = element.getAttribute('href');
const url = href.startsWith('http') ? href : baseUrl + href;
const name = element.textContent.trim();
return { url, name };
});
return links;
} catch (error) {
console.error('获取章节列表失败:', error);
return [];
}
}
getChapterName() {
const chapterName = document.querySelector('.headwrap .chaptername_title')?.textContent || '未知章节';
return chapterName;
}
getImageElements() {
return document.querySelectorAll('div.chapter-img-box img');
}
getImageUrl(imgElement) {
if (!imgElement) return null;
const src = imgElement.src || imgElement.dataset.src;
if (!src) return null;
let imageUrl = src.includes('/static/images/load.gif') ? imgElement.dataset.src : src;
if (imageUrl.startsWith('blob:')) {
return imageUrl;
}
if (imageUrl.startsWith('http:')) {
imageUrl = imageUrl.replace('http:', 'https:');
}
return imageUrl;
}
}
// 3. 获取适配器的工厂函数
function getSiteAdapter() {
const url = window.location.href;
switch (true) {
case url.includes('http://www.rumanhua1.com/'):
return new RumanhuaPCAdapter();
case url.includes('http://m.rumanhua1.com/'):
return new RumanhuaAdapter();
default:
throw new Error('不支持的页面格式');
}
}
// 4. UI类
// 4.1 普通下载器UI
class DownloaderUI {
constructor(totalPages, onDownload, onCancel) {
this.totalPages = totalPages;
this.onDownload = onDownload;
this.onCancel = onCancel;
this.currentPage = 0;
this.createUI();
}
createUI() {
const container = this.createContainer();
// 添加页数信息
this.infoText = this.createElement('div', STYLES.infoText, `本章节共 ${this.totalPages} 页`);
container.appendChild(this.infoText);
// 添加长图模式切换按钮
this.longPageModeButton = this.createElement('button', {
...STYLES.button,
backgroundColor: '#2196F3',
marginBottom: '10px'
}, '切换长图模式');
this.longPageModeButton.addEventListener('click', () => this.toggleLongPageMode());
container.appendChild(this.longPageModeButton);
this.downloadButton = this.createButton('下载本章节', () => this.onDownload(1, this.totalPages));
this.cancelButton = this.createButton('取消下载', () => {
this.onCancel();
this.infoText.textContent = '下载已取消';
setTimeout(() => {
this.infoText.textContent = `本章节共 ${this.totalPages} 页`;
}, 2000);
}, true);
// 创建进度容器
this.progressContainer = this.createElement('div', STYLES.progressContainer);
this.progressBar = this.createProgressBar();
this.progressText = this.createElement('span', {
marginLeft: '10px',
'@media (max-width: 768px)': {
fontSize: '12px',
marginLeft: '5px'
}
});
this.progressContainer.appendChild(this.progressBar);
this.progressContainer.appendChild(this.progressText);
container.appendChild(this.downloadButton);
container.appendChild(this.cancelButton);
container.appendChild(this.progressContainer);
document.body.appendChild(container);
// 添加窗口大小变化监听
window.addEventListener('resize', () => {
this.updateResponsiveStyles();
});
}
setLoading(isLoading, showCancel = false) {
this.downloadButton.disabled = isLoading;
this.downloadButton.style.backgroundColor = isLoading ? '#999' : '#4CAF50';
this.downloadButton.style.cursor = isLoading ? 'not-allowed' : 'pointer';
this.downloadButton.textContent = isLoading ? '下载中...' : '下载本章节';
this.downloadButton.style.display = isLoading ? 'none' : 'block'; // 修改：控制下载按钮显示
this.cancelButton.style.display = showCancel ? 'block' : 'none';
this.progressContainer.style.display = isLoading ? 'block' : 'none';
this.infoText.style.display = isLoading ? 'none' : 'block';
}
updateProgress(currentPage) {
this.currentPage = currentPage;
this.progressBar.value = currentPage;
const percent = ((currentPage / this.totalPages) * 100).toFixed(2);
this.progressText.textContent = `${currentPage}/${this.totalPages} (${percent}%)`;
}
createButton(text, onClick, isCancel = false) {
const button = document.createElement('button');
Object.assign(button.style, STYLES.button); // 应用基础按钮样式
if (isCancel) {
Object.assign(button.style, STYLES.cancelButton); // 如果是取消按钮，额外应用取消按钮样式
}
button.textContent = text;
button.addEventListener('click', onClick);
return button;
}
createContainer() {
const container = document.createElement('div');
Object.assign(container.style, STYLES.container);
return container;
}
createProgressBar() {
const progressBar = document.createElement('progress');
progressBar.max = this.totalPages;
progressBar.value = 0;
progressBar.style.width = '100%';
return progressBar;
}
toggleLongPageMode() {
this.isLongPageMode = !this.isLongPageMode;
this.longPageModeButton.textContent = this.isLongPageMode ? '切换普通模式' : '切换长图模式';
this.longPageModeButton.style.backgroundColor = this.isLongPageMode ? '#4CAF50' : '#2196F3';
}
// 添加响应式样式更新方法
updateResponsiveStyles() {
const elements = {
container: this.container,
infoText: this.infoText,
longPageModeButton: this.longPageModeButton,
downloadButton: this.downloadButton,
cancelButton: this.cancelButton,
progressContainer: this.progressContainer,
progressText: this.progressText
};
for (const [key, element] of Object.entries(elements)) {
if (element && STYLES[key]) {
applyResponsiveStyles(element, STYLES[key]);
}
}
}
// 修改 createElement 方法
createElement(type, styles, textContent = '') {
const element = document.createElement(type);
if (type === 'input' && styles.type) {
element.type = styles.type;
delete styles.type;
}
if (typeof styles === 'string') {
element.className = styles;
} else {
applyResponsiveStyles(element, styles);
}
if (textContent) element.textContent = textContent;
return element;
}
}
// 4.2 章节选择器UI
class ChapterSelectorUI {
constructor({ adapter, onDownloadSelected, onToggleLongPageMode, onCancel, onProgress, onLoading, onComplete, onError }) {
this.adapter = adapter;
this.onDownloadSelected = onDownloadSelected;
this.onToggleLongPageMode = onToggleLongPageMode;
this.onCancel = onCancel;
this.onProgress = onProgress;
this.onLoading = onLoading;
this.onComplete = onComplete;
this.onError = onError;
this.selectedChapters = new Set();
this.isSelectionMode = false;
this.isLongPageMode = false;
this.selectionStart = null;
this.selectionEnd = null;
this.createUI();
this.chapterListContainer.style.display = 'block';
this.initChapterList();
}
createUI() {
// 创建容器
this.container = this.createElement('div', {
...STYLES.container,
'@media (min-width: 769px)': {
width: '300px',
right: '20px',
left: 'auto'
}
});
document.body.appendChild(this.container);
// 创建【选择章节下载】按钮
this.selectButton = this.createElement('button', {
...STYLES.button,
position: 'sticky',
top: '0',
zIndex: '10',
width: '100%',
marginBottom: '10px',
fontWeight: 'bold',
'@media (max-width: 768px)': {
padding: '12px',
fontSize: '14px'
}
}, '选择章节下载');
this.selectButton.addEventListener('click', () => {
if (this.isSelectionMode) {
if (this.selectedChapters.size > 0) {
this.onDownloadSelected && this.onDownloadSelected(Array.from(this.selectedChapters));
}
} else {
this.toggleSelectionMode();
}
});
// 添加长图模式切换按钮
this.longPageModeButton = this.createElement('button', {
...STYLES.button,
backgroundColor: '#2196F3',
position: 'sticky',
top: '40px',
zIndex: '10',
width: '100%',
marginBottom: '10px',
'@media (max-width: 768px)': {
top: '50px',
padding: '12px',
fontSize: '14px'
}
}, '切换长图模式');
this.longPageModeButton.addEventListener('click', () => {
this.isLongPageMode = !this.isLongPageMode;
this.longPageModeButton.textContent = this.isLongPageMode ? '切换普通模式' : '切换长图模式';
this.longPageModeButton.style.backgroundColor = this.isLongPageMode ? '#4CAF50' : '#2196F3';
this.onToggleLongPageMode && this.onToggleLongPageMode(this.isLongPageMode);
});
// 添加取消按钮
this.cancelSelectionButton = this.createElement('button', {
...STYLES.cancelButton,
position: 'sticky',
top: '80px',
zIndex: '10',
width: '100%',
marginBottom: '10px',
display: 'none',
'@media (max-width: 768px)': {
top: '90px',
padding: '12px',
fontSize: '14px'
}
}, '返回');
this.cancelSelectionButton.addEventListener('click', () => {
this.cancelSelectionMode();
this.onCancel && this.onCancel();
});
// 创建按钮组容器并添加按钮
this.buttonGroup = this.createElement('div', STYLES.buttonGroup);
this.buttonGroup.appendChild(this.selectButton);
this.buttonGroup.appendChild(this.longPageModeButton);
this.buttonGroup.appendChild(this.cancelSelectionButton);
this.container.appendChild(this.buttonGroup);
// 创建章节列表容器
this.chapterListContainer = this.createElement('div', {
...STYLES.chapterListContainer,
display: 'block' // 确保章节列表容器默认显示
});
this.container.appendChild(this.chapterListContainer);
// 添加进度显示区域
this.progressContainer = this.createElement('div', {
marginTop: '10px',
display: 'none',
position: 'sticky',
bottom: '0',
backgroundColor: 'rgba(255, 255, 255, 0.9)',
padding: '5px 0',
zIndex: '2',
'@media (max-width: 768px)': {
padding: '8px 0'
}
});
this.progressText = this.createElement('div', {
marginBottom: '5px',
fontSize: '14px',
color: '#666',
'@media (max-width: 768px)': {
fontSize: '12px',
marginBottom: '3px'
}
});
this.progressBar = document.createElement('progress');
this.progressBar.style.width = '100%';
this.progressContainer.appendChild(this.progressText);
this.progressContainer.appendChild(this.progressBar);
this.container.appendChild(this.progressContainer);
// 添加窗口大小变化监听
window.addEventListener('resize', () => {
this.updateResponsiveStyles();
});
}
toggleSelectionMode() {
console.log('toggleSelectionMode 被调用');
this.isSelectionMode = !this.isSelectionMode;
if (this.isSelectionMode) {
console.log('进入选择模式，准备初始化章节列表');
this.initChapterList();
this.chapterListContainer.style.display = 'block';
this.cancelSelectionButton.style.display = 'block';
this.selectButton.textContent = '下载选中章节';
} else {
console.log('退出选择模式，检查是否有选中章节');
if (this.selectedChapters.size > 0) {
console.log(`开始下载 ${this.selectedChapters.size} 个选中章节`);
this.chapterListContainer.style.display = 'none';
this.cancelSelectionButton.style.display = 'none';
// 调用下载处理函数
this.onDownloadSelected();
} else {
console.log('无选中章节，返回选择模式');
this.chapterListContainer.style.display = 'none';
this.cancelSelectionButton.style.display = 'none';
this.selectButton.textContent = '选择章节下载';
}
}
}
cancelSelectionMode() {
this.isSelectionMode = false;
this.chapterListContainer.style.display = 'none';
this.cancelSelectionButton.style.display = 'none';
this.selectButton.textContent = '选择章节下载';
this.selectedChapters.clear();
this.selectionStart = null;
this.selectionEnd = null;
this.updateChapterSelectionUI();
}
async initChapterList() {
this.chapterListContainer.innerHTML = '';
this.selectedChapters = new Set();
this.selectionStart = null;
this.selectionEnd = null;
try {
const chapterLinks = await this.adapter.getChapterLinks();
if (!chapterLinks || chapterLinks.length === 0) {
return;
}
// 操作区
const controlsContainer = this.createElement('div', {
display: 'flex',
justifyContent: 'space-between',
alignItems: 'center',
marginBottom: '12px',
gap: '8px',
position: 'sticky',
top: '0',
backgroundColor: 'rgba(255,255,255,0.9)',
padding: '5px 0',
zIndex: '1'
});
const chapterCountLabel = this.createElement('span', {
fontSize: '12px',
color: '#666',
alignSelf: 'center'
}, `共 ${chapterLinks.length} 章`);
const buttonsContainer = this.createElement('div', {
display: 'flex',
gap: '5px'
});
// 全选按钮
const selectAllBtn = this.createElement('button', {
padding: '3px 10px',
fontSize: '12px',
backgroundColor: '#4caf50',
color: 'white',
border: 'none',
borderRadius: '4px',
cursor: 'pointer',
fontWeight: 'bold'
}, '全选章节');
selectAllBtn.addEventListener('click', () => {
this.selectedChapters = new Set(chapterLinks.map((_, i) => i));
this.selectionStart = 0;
this.selectionEnd = chapterLinks.length - 1;
this.updateChapterSelectionUI();
this.selectButton.textContent = `下载选中章节 (${this.selectedChapters.size})`;
});
// 清除选择按钮
const deselectAllBtn = this.createElement('button', {
padding: '3px 10px',
fontSize: '12px',
backgroundColor: '#f44336',
color: 'white',
border: 'none',
borderRadius: '4px',
cursor: 'pointer',
fontWeight: 'bold'
}, '清除选择');
deselectAllBtn.addEventListener('click', () => {
this.selectedChapters.clear();
this.selectionStart = null;
this.selectionEnd = null;
this.updateChapterSelectionUI();
this.selectButton.textContent = '下载选中章节';
});
// 刷新按钮
const refreshBtn = this.createElement('button', {
padding: '3px 10px',
fontSize: '12px',
backgroundColor: '#2196f3',
color: 'white',
border: 'none',
borderRadius: '4px',
cursor: 'pointer',
fontWeight: 'bold'
}, '刷新列表');
refreshBtn.addEventListener('click', () => this.refreshChapterList());
buttonsContainer.appendChild(selectAllBtn);
buttonsContainer.appendChild(deselectAllBtn);
buttonsContainer.appendChild(refreshBtn);
controlsContainer.appendChild(chapterCountLabel);
controlsContainer.appendChild(buttonsContainer);
this.chapterListContainer.appendChild(controlsContainer);
// 章节列表
chapterLinks.forEach((chapter, index) => {
const chapterItem = this.createElement('div', {
padding: '10px 12px',
marginBottom: '8px',
borderRadius: '8px',
background: '#f5f7fa',
cursor: 'pointer',
transition: 'background 0.2s, color 0.2s',
fontSize: '15px',
fontWeight: '500',
userSelect: 'none',
border: '1px solid #e0e6ef',
});
chapterItem.textContent = chapter.name;
chapterItem.addEventListener('click', () => this.handleChapterClick(index, chapterLinks.length));
chapterItem.classList.add('chapter-item');
this.chapterListContainer.appendChild(chapterItem);
});
this.updateChapterSelectionUI();
} catch (error) {
console.error('初始化章节列表失败:', error);
}
}
handleChapterClick(index, total) {
console.log(`处理章节点击: index=${index}, total=${total}`);
if (!this.isSelectionMode) {
this.toggleSelectionMode();
}
if (this.selectionStart === null) {
// 第一次点击，设置起始点
this.selectionStart = index;
this.selectedChapters = new Set([index]);
} else if (this.selectionEnd === null) {
// 第二次点击，设置结束点并选择区间
this.selectionEnd = index;
const [start, end] = [this.selectionStart, this.selectionEnd].sort((a, b) => a - b);
this.selectedChapters = new Set();
for (let i = start; i <= end; i++) {
this.selectedChapters.add(i);
}
} else {
// 第三次点击，开始新的选择
this.selectionStart = index;
this.selectionEnd = null;
this.selectedChapters = new Set([index]);
}
this.updateChapterSelectionUI();
if (this.selectedChapters.size > 0) {
this.selectButton.textContent = `下载选中章节 (${this.selectedChapters.size})`;
} else {
this.selectButton.textContent = '下载选中章节';
}
}
updateChapterSelectionUI() {
console.log('更新章节选择UI');
const items = this.chapterListContainer.querySelectorAll('.chapter-item');
items.forEach((item, idx) => {
if (this.selectedChapters.has(idx)) {
item.style.background = '#2196f3';
item.style.color = '#fff';
} else {
item.style.background = '#f5f7fa';
item.style.color = '#222';
}
});
}
refreshChapterList() {
this.initChapterList();
}
toggleLongPageMode() {
this.isLongPageMode = !this.isLongPageMode;
this.longPageModeButton.textContent = this.isLongPageMode ? '切换普通模式' : '切换长图模式';
this.longPageModeButton.style.backgroundColor = this.isLongPageMode ? '#4CAF50' : '#2196F3';
}
createElement(type, styles, textContent = '') {
const element = document.createElement(type);
if (type === 'input' && styles.type) {
element.type = styles.type;
delete styles.type;
}
if (typeof styles === 'string') {
element.className = styles;
} else {
applyResponsiveStyles(element, styles);
}
if (textContent) element.textContent = textContent;
return element;
}
// 添加 setLoading 方法
setLoading(isLoading, totalChapters = 0) {
console.log(`设置加载状态: isLoading=${isLoading}, totalChapters=${totalChapters}`);
this.selectButton.disabled = isLoading;
this.selectButton.style.backgroundColor = isLoading ? '#999' : '#4CAF50';
this.selectButton.style.cursor = isLoading ? 'not-allowed' : 'pointer';
this.longPageModeButton.style.display = isLoading ? 'none' : 'block';
if (isLoading) {
this.selectButton.textContent = '下载中...';
this.chapterListContainer.style.display = 'none';
this.progressContainer.style.display = 'block';
if (this.progressBar) {
this.progressBar.max = totalChapters;
this.progressBar.value = 0;
}
if (this.progressText) {
this.progressText.textContent = `准备下载 ${totalChapters} 个章节...`;
}
} else {
this.selectButton.textContent = '选择章节下载';
this.progressContainer.style.display = 'none';
}
}
// 添加 updateProgress 方法
updateProgress(current, total) {
console.log(`更新进度: current=${current}, total=${total}`);
if (this.progressBar) {
this.progressBar.value = current;
const percent = ((current / total) * 100).toFixed(2);
if (this.progressText) {
this.progressText.textContent = `下载进度: ${current}/${total} (${percent}%)`;
}
}
}
}
class ComicDownloader {
constructor() {
try {
console.log('开始创建ComicDownloader实例...');
this.adapter = getSiteAdapter();
this.isLongPageMode = GM_getValue('isLongPageMode', false);
this.isDownloading = false;
this.abortController = null;
if (this.adapter.isChapterPage()) {
console.log('当前是章节页面');
const imageElements = this.adapter.getImageElements();
this.totalPages = imageElements.length;
this.chapterName = this.adapter.getChapterName();
if (this.totalPages > 0) {
console.log(`找到 ${this.totalPages} 页图片`);
this.ui = new DownloaderUI(this.totalPages, this.handleDownload.bind(this), this.handleCancel.bind(this));
if (this.isLongPageMode) {
this.ui.isLongPageMode = true;
this.ui.longPageModeButton.textContent = '切换普通模式';
this.ui.longPageModeButton.style.backgroundColor = '#4CAF50';
}
} else {
console.log('未找到图片元素');
}
} else if (this.adapter.isDirectoryPage()) {
console.log('当前是目录页面');
this.ui = new ChapterSelectorUI({
adapter: this.adapter,
onDownloadSelected: this.handleDownloadSelected.bind(this),
onToggleLongPageMode: (isLong) => { this.isLongPageMode = isLong; },
onCancel: () => {},
onProgress: (current, total) => this.ui.updateProgress(current, total),
onLoading: (isLoading, total) => this.ui.setLoading(isLoading, total),
onComplete: () => {},
onError: (err) => this.ui.showError && this.ui.showError(err)
});
// 确保UI立即显示
if (this.ui && this.ui.container) {
this.ui.container.style.display = 'flex';
this.ui.chapterListContainer.style.display = 'block';
}
}
} catch (error) {
console.error('初始化失败:', error);
}
}
async handleDownload() {
if (this.isDownloading) {
alert('当前正在下载，请稍后再试');
return;
}
try {
this.isDownloading = true;
this.abortController = new AbortController();
this.ui.setLoading(true, true);
// 传递长图模式状态
this.isLongPageMode = this.ui.isLongPageMode;
await this.downloadComic();
} catch (error) {
if (error.name === 'AbortError') {
console.log('下载已取消');
alert('下载已取消');
} else {
this.handleError(error, '下载失败');
}
} finally {
this.isDownloading = false;
this.abortController = null;
this.ui.setLoading(false, false);
}
}
handleCancel() {
if (this.abortController) {
this.abortController.abort(); // 中断下载
this.isDownloading = false; // 重置下载状态
this.ui.setLoading(false, false); // 重置UI状态
// 显示取消消息，然后恢复下载按钮
setTimeout(() => {
this.ui.downloadButton.style.display = 'block';
this.ui.downloadButton.disabled = false;
}, 2000);
}
}
async downloadComic() {
const images = await this.downloadImages(1, this.totalPages);
await this.generatePDF(images);
}
async downloadImages(start, end) {
const imageElements = this.adapter.getImageElements();
const downloadResults = new Array(end - start + 1);
const downloadPromises = [];
for (let i = 0; i < imageElements.length; i++) {
const pageNumber = i + 1;
if (pageNumber >= start && pageNumber <= end) {
this.addDownloadPromise(imageElements[i], pageNumber, start, downloadResults, downloadPromises);
}
}
await Promise.all(downloadPromises);
return downloadResults;
}
addDownloadPromise(element, pageNumber, start, downloadResults, downloadPromises) {
const imgUrl = this.adapter.getImageUrl(element);
if (imgUrl) {
const arrayIndex = pageNumber - start;
downloadPromises.push(
this.downloadImage(imgUrl)
.then(imgData => {
downloadResults[arrayIndex] = imgData;
this.ui.updateProgress(pageNumber);
})
.catch(error => {
console.error(`第 ${pageNumber} 页下载失败:`, error);
downloadResults[arrayIndex] = null;
})
);
}
}
downloadImage(url) {
return new Promise((resolve, reject) => {
if (this.abortController?.signal?.aborted) {
reject(new DOMException('下载已取消', 'AbortError'));
return;
}
const request = GM_xmlhttpRequest({
method: 'GET',
url: url,
responseType: 'blob',
onload: response => this.handleImageResponse(response, resolve, reject),
onerror: error => reject(error)
});
// 监听中断信号
this.abortController?.signal?.addEventListener('abort', () => {
request.abort(); // 中断请求
reject(new DOMException('下载已取消', 'AbortError'));
});
});
}
handleImageResponse(response, resolve, reject) {
try {
const blob = response.response;
const reader = new FileReader();
reader.onload = event => resolve(event.target.result);
reader.onerror = error => reject(error);
reader.readAsDataURL(blob);
} catch (error) {
reject(error);
}
}
async generatePDF(images) {
const pdf = new jspdf.jsPDF();
const sizes = await this.getImageSizes(images);
if (this.isLongPageMode) {
// 长图模式：将所有图片垂直拼接
await this.generateLongPagePDF(pdf, images, sizes);
} else {
// 普通模式：每页一张图片
for (let i = 0; i < images.length; i++) {
await this.addImageToPdf(pdf, images[i], i, sizes[i]);
this.ui.updateProgress(i + 1);
}
}
pdf.save(`${this.chapterName}.pdf`);
}
async generateLongPagePDF(pdf, images, sizes) {
// 计算所有图片的总高度
const A4_width = 210;
let totalHeight = 0;
let maxWidth = 0;
// 计算缩放比例和总高度
for (let i = 0; i < sizes.length; i++) {
const scaleFactor = A4_width / sizes[i].width;
const scaledHeight = sizes[i].height * scaleFactor;
totalHeight += scaledHeight;
maxWidth = Math.max(maxWidth, sizes[i].width * scaleFactor);
}
// 设置PDF页面大小
pdf.internal.pageSize.width = A4_width;
pdf.internal.pageSize.height = totalHeight;
// 垂直拼接所有图片
let currentY = 0;
for (let i = 0; i < images.length; i++) {
const img = new Image();
img.src = images[i];
await new Promise(resolve => {
img.onload = () => {
const scaleFactor = A4_width / sizes[i].width;
const scaledHeight = sizes[i].height * scaleFactor;
pdf.addImage(
images[i],
'JPEG',
0,
currentY,
A4_width,
scaledHeight
);
currentY += scaledHeight;
this.ui.updateProgress(i + 1);
resolve();
};
});
}
}
async getImageSizes(images) {
return Promise.all(images.map(imgData => {
return new Promise(resolve => {
const img = new Image();
img.src = imgData;
img.onload = () => resolve({ width: img.width, height: img.height });
});
}));
}
async addImageToPdf(pdf, imgData, index, size) {
return new Promise(resolve => {
const img = new Image();
img.src = imgData;
img.onload = () => {
if (index > 0) pdf.addPage();
const A4_width = 210;
const A4_height = 297;
const scaleFactor = A4_width / size.width;
let finalWidth = A4_width;
let finalHeight = size.height * scaleFactor;
if (finalHeight > A4_height) {
finalHeight = A4_height;
finalWidth = size.width * (A4_height / size.height);
}
pdf.internal.pageSize.width = finalWidth;
pdf.internal.pageSize.height = finalHeight;
pdf.addImage(imgData, 'JPEG', 0, 0, finalWidth, finalHeight);
resolve();
};
});
}
handleError(error, message = '下载失败') {
console.error(message, error);
alert(`${message}，请查看控制台了解详情`);
}
// 添加处理选中章节下载的方法
async handleDownloadSelected() {
console.log('开始处理选中章节下载...');
const selectedChapters = this.ui.selectedChapters;
if (selectedChapters.size === 0) {
this.ui.selectButton.textContent = '请选择至少一个章节';
setTimeout(() => {
this.ui.selectButton.textContent = '选择章节下载';
}, 2000);
return;
}
try {
const chapterLinks = await this.adapter.getChapterLinks();
const selectedChapterUrls = Array.from(selectedChapters).map(index => chapterLinks[index].url);
this.ui.setLoading(true, selectedChapterUrls.length);
this.isLongPageMode = this.ui.isLongPageMode;
for (let i = 0; i < selectedChapterUrls.length; i++) {
const url = selectedChapterUrls[i];
try {
const sessionId = Date.now().toString();
GM_setValue('autoDownload', true);
GM_setValue('sessionId', sessionId);
GM_setValue('downloadStatus', 'pending');
GM_setValue('isLongPageMode', this.isLongPageMode);
const tab = GM_openInTab(url, {
active: true,
insert: true,
setParent: true
});
await new Promise((resolve, reject) => {
const maxRetries = 3;
let retryCount = 0;
let timeout;
const checkStatus = () => {
const status = GM_getValue('downloadStatus', '');
if (status === 'complete') {
clearTimeout(timeout);
GM_setValue('downloadStatus', '');
GM_setValue('autoDownload', false);
resolve();
return true;
}
return false;
};
const startCheck = () => {
timeout = setTimeout(() => {
if (!checkStatus() && retryCount < maxRetries) {
retryCount++;
tab.activate();
startCheck();
} else if (retryCount >= maxRetries) {
GM_setValue('downloadStatus', '');
reject(new Error('下载超时，已达到最大重试次数'));
}
}, 30000);
};
startCheck();
const checkInterval = setInterval(() => {
if (checkStatus()) {
clearInterval(checkInterval);
}
}, 1000);
});
tab.close();
this.ui.updateProgress(i + 1, selectedChapterUrls.length);
} catch (error) {
console.error(`章节下载失败: ${url}`, error);
}
}
this.ui.setLoading(false);
this.ui.selectButton.textContent = '下载完成！';
setTimeout(() => {
this.ui.selectButton.textContent = '选择章节下载';
}, 3000);
} catch (error) {
console.error('批量下载失败:', error);
this.ui.setLoading(false);
this.ui.selectButton.textContent = '下载失败，请查看控制台';
setTimeout(() => {
this.ui.selectButton.textContent = '选择章节下载';
}, 3000);
}
}
}
// 6. 初始化
function initialize() {
console.log('开始初始化下载器...');
try {
// 创建下载器实例
window.comicDownloader = new ComicDownloader();
// 检查是否需要自动下载
const autoDownload = GM_getValue('autoDownload', false);
console.log('自动下载标志:', autoDownload);
// 如果是章节页面且需要自动下载
if (autoDownload && window.comicDownloader.adapter.isChapterPage()) {
console.log('检测到是从目录页面打开的章节页面，准备自动下载');
// 读取长图模式状态
window.comicDownloader.isLongPageMode = GM_getValue('isLongPageMode', false);
setTimeout(async () => {
try {
console.log('开始自动下载...');
await window.comicDownloader.handleDownload();
console.log('自动下载完成，设置状态为 complete');
GM_setValue('downloadStatus', 'complete');
} catch (error) {
console.error('自动下载失败:', error);
GM_setValue('downloadStatus', 'complete');
}
}, 2000);
}
// 确保UI显示
if (window.comicDownloader.ui) {
console.log('UI已初始化');
if (window.comicDownloader.adapter.isDirectoryPage()) {
console.log('当前是目录页面');
window.comicDownloader.ui.chapterListContainer.style.display = 'block';
}
} else {
console.error('UI初始化失败');
}
} catch (error) {
console.error('初始化失败:', error);
}
}
// 确保在页面完全加载后再初始化
if (document.readyState === 'complete') {
console.log('页面已加载完成，立即初始化');
initialize();
} else {
console.log('等待页面加载完成...');
window.addEventListener('load', () => {
console.log('页面加载完成，开始初始化');
initialize();
});
}
})();