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Copy pathreading-progress.js
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451 lines (380 loc) · 11.8 KB
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class ReadingProgress {
constructor() {
this.progressBar = null;
this.tocNav = null;
this.headings = [];
this.currentHeadingIndex = -1;
this.init();
}
init() {
if (this.isArticlePage()) {
this.createProgressBar();
this.createTableOfContents();
this.collectHeadings();
this.bindEvents();
this.updateProgress();
}
}
isArticlePage() {
const path = window.location.pathname;
return path.includes('/blog/') && path.endsWith('.html');
}
createProgressBar() {
const progressBar = document.createElement('div');
progressBar.className = 'reading-progress-bar';
progressBar.innerHTML = `
<div class="progress-fill"></div>
<div class="progress-text">0%</div>
`;
document.body.prepend(progressBar);
this.progressBar = progressBar;
this.addProgressBarStyles();
}
addProgressBarStyles() {
const style = document.createElement('style');
style.textContent = `
.reading-progress-bar {
position: fixed;
top: 64px;
left: 0;
right: 0;
height: 3px;
background: rgba(0, 0, 0, 0.1);
z-index: 999;
}
.progress-fill {
height: 100%;
background: linear-gradient(90deg, #3b82f6, #8b5cf6);
width: 0%;
transition: width 0.2s;
}
.progress-text {
position: absolute;
right: 20px;
top: -25px;
font-size: 12px;
color: #6b7280;
background: rgba(255, 255, 255, 0.9);
padding: 2px 8px;
border-radius: 4px;
}
.dark-mode .reading-progress-bar {
background: rgba(255, 255, 255, 0.1);
}
.dark-mode .progress-text {
background: rgba(31, 41, 55, 0.9);
color: #9ca3af;
}
@media (max-width: 768px) {
.progress-text {
display: none;
}
}
`;
document.head.appendChild(style);
}
createTableOfContents() {
const tocContainer = document.createElement('div');
tocContainer.className = 'table-of-contents';
tocContainer.innerHTML = `
<div class="toc-header">
<h4><i class="fas fa-list"></i> 目录导航</h4>
<button class="toc-toggle" aria-label="切换目录">
<i class="fas fa-chevron-left"></i>
</button>
</div>
<div class="toc-body">
<nav class="toc-nav"></nav>
</div>
<div class="toc-footer">
<div class="reading-time">
<i class="fas fa-clock"></i>
<span class="time-text">预计阅读时间: --分钟</span>
</div>
</div>
`;
const articleContent =
document.querySelector('.article-content') ||
document.querySelector('.post-content') ||
document.querySelector('main');
if (articleContent) {
articleContent.parentElement.insertBefore(tocContainer, articleContent);
this.tocNav = tocContainer;
this.addTocStyles();
}
}
addTocStyles() {
const style = document.createElement('style');
style.textContent = `
.table-of-contents {
position: fixed;
right: 20px;
top: 80px;
width: 280px;
background: rgba(255, 255, 255, 0.95);
backdrop-filter: blur(20px);
border-radius: 12px;
box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
overflow: hidden;
transition: all 0.3s;
z-index: 100;
max-height: calc(100vh - 100px);
}
.toc-header {
padding: 16px 20px;
border-bottom: 1px solid rgba(0, 0, 0, 0.05);
display: flex;
align-items: center;
justify-content: space-between;
}
.toc-header h4 {
margin: 0;
font-size: 16px;
display: flex;
align-items: center;
gap: 8px;
color: #1e293b;
}
.toc-toggle {
background: transparent;
border: none;
color: #6b7280;
cursor: pointer;
padding: 4px 8px;
border-radius: 4px;
}
.toc-toggle:hover {
background: rgba(0, 0, 0, 0.05);
}
.toc-body {
padding: 12px 20px;
max-height: 400px;
overflow-y: auto;
}
.toc-nav {
display: flex;
flex-direction: column;
gap: 4px;
}
.toc-link {
padding: 8px 12px;
border-radius: 6px;
color: #4b5563;
text-decoration: none;
font-size: 14px;
transition: all 0.2s;
display: block;
border-left: 2px solid transparent;
}
.toc-link:hover {
background: rgba(59, 130, 246, 0.1);
color: #3b82f6;
border-left-color: #3b82f6;
}
.toc-link.active {
background: rgba(59, 130, 246, 0.15);
color: #3b82f6;
border-left-color: #3b82f6;
font-weight: 500;
}
.toc-link.level-2 {
padding-left: 24px;
font-size: 13px;
}
.toc-link.level-3 {
padding-left: 36px;
font-size: 12px;
}
.toc-footer {
padding: 12px 20px;
border-top: 1px solid rgba(0, 0, 0, 0.05);
font-size: 13px;
color: #6b7280;
}
.reading-time {
display: flex;
align-items: center;
gap: 6px;
}
.table-of-contents.collapsed {
width: 50px;
overflow: hidden;
}
.table-of-contents.collapsed .toc-header h4,
.table-of-contents.collapsed .toc-body,
.table-of-contents.collapsed .toc-footer {
display: none;
}
.table-of-contents.collapsed .toc-toggle i {
transform: rotate(180deg);
}
.dark-mode .table-of-contents {
background: rgba(31, 41, 55, 0.95);
box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}
.dark-mode .toc-header {
border-bottom-color: rgba(255, 255, 255, 0.1);
}
.dark-mode .toc-header h4 {
color: #f9fafb;
}
.dark-mode .toc-toggle {
color: #9ca3af;
}
.dark-mode .toc-toggle:hover {
background: rgba(255, 255, 255, 0.1);
}
.dark-mode .toc-link {
color: #9ca3af;
}
.dark-mode .toc-link:hover {
background: rgba(59, 130, 246, 0.2);
color: #60a5fa;
border-left-color: #60a5fa;
}
.dark-mode .toc-link.active {
background: rgba(59, 130, 246, 0.25);
color: #60a5fa;
border-left-color: #60a5fa;
}
.dark-mode .toc-footer {
border-top-color: rgba(255, 255, 255, 0.1);
color: #9ca3af;
}
@media (max-width: 1400px) {
.table-of-contents {
width: 240px;
}
}
@media (max-width: 1024px) {
.table-of-contents {
position: static;
width: 100%;
margin-bottom: 24px;
max-height: none;
}
.toc-body {
max-height: 300px;
}
}
`;
document.head.appendChild(style);
}
collectHeadings() {
const articleContent =
document.querySelector('.article-content') ||
document.querySelector('.post-content') ||
document.querySelector('main');
if (!articleContent) return;
this.headings = Array.from(articleContent.querySelectorAll('h1, h2, h3, h4')).map(
(heading) => ({
element: heading,
level: parseInt(heading.tagName.charAt(1)),
text: heading.textContent.trim(),
id: heading.id || this.generateHeadingId(heading),
})
);
this.renderTableOfContents();
this.calculateReadingTime();
}
generateHeadingId(heading) {
const id = heading.textContent
.trim()
.toLowerCase()
.replace(/[^\w\s-]/g, '')
.replace(/\s+/g, '-')
.substring(0, 50);
heading.id = id;
return id;
}
renderTableOfContents() {
const tocNav = this.tocNav?.querySelector('.toc-nav');
if (!tocNav || this.headings.length === 0) return;
tocNav.innerHTML = this.headings
.map(
(heading) => `
<a href="#${heading.id}"
class="toc-link level-${heading.level}"
data-heading-index="${this.headings.indexOf(heading)}">
${heading.text}
</a>
`
)
.join('');
}
calculateReadingTime() {
const articleContent =
document.querySelector('.article-content') ||
document.querySelector('.post-content') ||
document.querySelector('main');
if (!articleContent) return;
const text = articleContent.textContent.trim();
const wordCount = text.split(/\s+/).length;
const chineseCount = (text.match(/[\u4e00-\u9fa5]/g) || []).length;
const totalWords = wordCount + chineseCount;
const readingSpeed = 200;
const minutes = Math.ceil(totalWords / readingSpeed);
const timeText = this.tocNav?.querySelector('.time-text');
if (timeText) {
timeText.textContent = `预计阅读时间: ${minutes}分钟`;
}
}
bindEvents() {
window.addEventListener('scroll', this.handleScroll.bind(this));
this.tocNav?.querySelector('.toc-toggle')?.addEventListener('click', () => {
this.tocNav.classList.toggle('collapsed');
});
this.tocNav?.querySelectorAll('.toc-link').forEach((link) => {
link.addEventListener('click', (e) => {
e.preventDefault();
const targetId = link.getAttribute('href').substring(1);
const targetElement = document.getElementById(targetId);
if (targetElement) {
const offsetTop = targetElement.offsetTop - 80;
window.scrollTo({
top: offsetTop,
behavior: 'smooth',
});
}
});
});
}
handleScroll() {
this.updateProgress();
this.updateActiveHeading();
}
updateProgress() {
const scrollTop = window.pageYOffset || document.documentElement.scrollTop;
const scrollHeight =
document.documentElement.scrollHeight - document.documentElement.clientHeight;
const progress = (scrollTop / scrollHeight) * 100;
const progressFill = this.progressBar?.querySelector('.progress-fill');
const progressText = this.progressBar?.querySelector('.progress-text');
if (progressFill) {
progressFill.style.width = `${progress}%`;
}
if (progressText) {
progressText.textContent = `${Math.round(progress)}%`;
}
}
updateActiveHeading() {
const scrollTop = window.pageYOffset || document.documentElement.scrollTop;
let activeIndex = -1;
this.headings.forEach((heading, index) => {
const headingTop = heading.element.offsetTop - 100;
if (scrollTop >= headingTop) {
activeIndex = index;
}
});
if (activeIndex !== this.currentHeadingIndex) {
this.currentHeadingIndex = activeIndex;
this.tocNav?.querySelectorAll('.toc-link').forEach((link, index) => {
link.classList.toggle('active', index === activeIndex);
});
}
}
}
const readingProgress = new ReadingProgress();
if (typeof module !== 'undefined' && module.exports) {
module.exports = ReadingProgress;
}
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