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(function() {
'use strict';
const utils = {
$(selector, context = document) {
return context.querySelector(selector);
},
$$(selector, context = document) {
return Array.from(context.querySelectorAll(selector));
},
throttle(func, wait) {
let timeout;
return function(...args) {
if (!timeout) {
timeout = setTimeout(() => {
timeout = null;
func.apply(this, args);
}, wait);
}
};
},
debounce(func, wait) {
let timeout;
return function(...args) {
clearTimeout(timeout);
timeout = setTimeout(() => func.apply(this, args), wait);
};
},
storage: {
get(key, defaultValue = null) {
try {
const value = localStorage.getItem(key);
return value !== null ? JSON.parse(value) : defaultValue;
} catch (e) {
return defaultValue;
}
},
set(key, value) {
try {
localStorage.setItem(key, JSON.stringify(value));
return true;
} catch (e) {
return false;
}
},
remove(key) {
try {
localStorage.removeItem(key);
return true;
} catch (e) {
return false;
}
}
}
};
const ThemeToggle = {
init() {
this.toggle = utils.$('#theme-toggle');
if (!this.toggle) return;
this.toggle.addEventListener('click', () => this.switch());
if (window.matchMedia) {
window.matchMedia('(prefers-color-scheme: dark)').addEventListener('change', (e) => {
if (utils.storage.get('theme') === 'auto') {
this.apply(e.matches ? 'dark' : 'light');
}
});
}
},
switch() {
const current = document.documentElement.getAttribute('data-theme') || 'light';
const next = current === 'light' ? 'dark' : 'light';
this.apply(next);
utils.storage.set('theme', next);
},
apply(theme) {
document.documentElement.setAttribute('data-theme', theme);
}
};
const MobileMenu = {
init() {
this.toggle = utils.$('#menu-toggle');
this.nav = utils.$('#site-nav');
if (!this.toggle || !this.nav) return;
this.toggle.addEventListener('click', () => this.toggleMenu());
utils.$$('.nav-link', this.nav).forEach(link => {
link.addEventListener('click', () => this.closeMenu());
});
document.addEventListener('click', (e) => {
if (!this.toggle.contains(e.target) && !this.nav.contains(e.target)) {
this.closeMenu();
}
});
},
toggleMenu() {
const isOpen = this.nav.classList.toggle('active');
this.toggle.classList.toggle('active', isOpen);
document.body.style.overflow = isOpen ? 'hidden' : '';
},
closeMenu() {
this.nav.classList.remove('active');
this.toggle.classList.remove('active');
document.body.style.overflow = '';
}
};
const ReadingProgress = {
init() {
this.bar = utils.$('#reading-progress');
if (!this.bar) return;
window.addEventListener('scroll', utils.throttle(() => {
this.update();
}, 100));
},
update() {
const winHeight = window.innerHeight;
const docHeight = document.documentElement.scrollHeight;
const scrollTop = window.pageYOffset || document.documentElement.scrollTop;
const progress = scrollTop / (docHeight - winHeight) * 100;
this.bar.style.width = `${Math.min(progress, 100)}%`;
}
};
const BackToTop = {
init() {
this.button = utils.$('#back-to-top');
if (!this.button) return;
window.addEventListener('scroll', utils.throttle(() => {
this.toggleVisibility();
}, 200));
this.button.addEventListener('click', () => this.scrollToTop());
},
toggleVisibility() {
const scrollTop = window.pageYOffset || document.documentElement.scrollTop;
this.button.classList.toggle('visible', scrollTop > 300);
const percent = utils.$('.back-to-top-percent', this.button);
if (percent) {
const docHeight = document.documentElement.scrollHeight;
const winHeight = window.innerHeight;
const progress = Math.round(scrollTop / (docHeight - winHeight) * 100);
percent.textContent = `${progress}%`;
}
},
scrollToTop() {
window.scrollTo({
top: 0,
behavior: 'smooth'
});
}
};
const TOC = {
init() {
this.toc = utils.$('.toc-widget');
if (!this.toc) return;
this.links = utils.$$('.toc-link', this.toc);
this.headings = this.links.map(link => {
const target = link.getAttribute('data-target');
return utils.$(`#${target}`);
}).filter(Boolean);
if (this.headings.length === 0) return;
window.addEventListener('scroll', utils.throttle(() => {
this.updateActive();
}, 100));
this.links.forEach(link => {
link.addEventListener('click', (e) => {
e.preventDefault();
const target = link.getAttribute('data-target');
const heading = utils.$(`#${target}`);
if (heading) {
const top = heading.getBoundingClientRect().top + window.pageYOffset - 80;
window.scrollTo({
top: top,
behavior: 'smooth'
});
}
});
});
const toggle = utils.$('.toc-toggle', this.toc);
if (toggle) {
toggle.addEventListener('click', () => {
this.toc.classList.toggle('collapsed');
});
}
},
updateActive() {
const scrollTop = window.pageYOffset + 100;
let activeIndex = -1;
for (let i = 0; i < this.headings.length; i++) {
const heading = this.headings[i];
if (heading.offsetTop <= scrollTop) {
activeIndex = i;
} else {
break;
}
}
this.links.forEach((link, index) => {
link.classList.toggle('active', index === activeIndex);
});
}
};
const CodeCopy = {
init() {
utils.$$('.copy-btn').forEach(btn => {
btn.addEventListener('click', (e) => {
this.copy(e.target);
});
});
},
async copy(button) {
const codeBlock = button.closest('.code-wrapper, .highlight');
if (!codeBlock) return;
const code = codeBlock.querySelector('code');
if (!code) return;
try {
await navigator.clipboard.writeText(code.textContent);
this.showSuccess(button);
} catch (err) {
this.showError(button);
}
},
showSuccess(button) {
const originalText = button.textContent;
button.textContent = '已复制!';
button.classList.add('success');
setTimeout(() => {
button.textContent = originalText;
button.classList.remove('success');
}, 2000);
},
showError(button) {
const originalText = button.textContent;
button.textContent = '复制失败';
button.classList.add('error');
setTimeout(() => {
button.textContent = originalText;
button.classList.remove('error');
}, 2000);
}
};
const LazyLoad = {
init() {
if ('IntersectionObserver' in window) {
this.observer = new IntersectionObserver((entries) => {
entries.forEach(entry => {
if (entry.isIntersecting) {
this.loadImage(entry.target);
}
});
});
utils.$$('img[loading="lazy"], .lazyload').forEach(img => {
this.observer.observe(img);
});
} else {
utils.$$('img[loading="lazy"], .lazyload').forEach(img => {
this.loadImage(img);
});
}
},
loadImage(img) {
const src = img.getAttribute('data-src') || img.getAttribute('src');
if (src) {
img.src = src;
img.classList.remove('lazyload');
img.classList.add('lazyloaded');
if (this.observer) {
this.observer.unobserve(img);
}
}
}
};
const Loading = {
init() {
this.overlay = utils.$('#loading');
if (!this.overlay) return;
window.addEventListener('load', () => {
setTimeout(() => {
this.hide();
}, 300);
});
},
hide() {
if (this.overlay) {
this.overlay.style.opacity = '0';
setTimeout(() => {
this.overlay.style.display = 'none';
}, 300);
}
}
};
function init() {
Loading.init();
ThemeToggle.init();
MobileMenu.init();
ReadingProgress.init();
BackToTop.init();
TOC.init();
CodeCopy.init();
LazyLoad.init();
console.log('Aurora Theme initialized');
}
if (document.readyState === 'loading') {
document.addEventListener('DOMContentLoaded', init);
} else {
init();
}
})();
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