chore: 初始化文档站仓库

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2026-09-21 13:38:20 +08:00
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// 自定义主题:为文档图片启用「点击全屏查看」
//
// 点击正文(.vp-doc)内的图片后,在全屏遮罩中铺满展示原图;
// 再次点击或按 Esc 关闭。路由切换时重新绑定,避免遗漏动态渲染的图片。
import { onMounted, watch, nextTick } from 'vue'
import { useRoute } from 'vitepress'
import DefaultTheme from 'vitepress/theme'
import './custom.css'
// 全屏查看器遮罩元素(全站复用一个)
let viewer: HTMLDivElement | null = null
/** 关闭全屏查看器 */
function closeViewer() {
viewer?.classList.remove('active')
}
/** 打开全屏查看器并展示指定图片
* :param src: 图片地址
* :param alt: 图片替代文本
*/
function openViewer(src: string, alt: string) {
if (!viewer) return
const img = viewer.querySelector('img')
if (!img) return
img.src = src
img.alt = alt
viewer.classList.add('active')
}
/** 创建全屏查看器并注册关闭事件 */
function ensureViewer() {
if (viewer) return
viewer = document.createElement('div')
viewer.className = 'doc-image-viewer'
viewer.innerHTML = '<img alt="" />'
// 点击遮罩或图片本身关闭
viewer.addEventListener('click', closeViewer)
document.addEventListener('keydown', (event) => {
if (event.key === 'Escape') closeViewer()
})
document.body.appendChild(viewer)
}
/** 为正文图片绑定点击全屏事件(幂等) */
function bindImages() {
const images = document.querySelectorAll<HTMLImageElement>('.vp-doc img')
images.forEach((img) => {
if (img.dataset.zoomBound === '1') return
img.dataset.zoomBound = '1'
img.classList.add('doc-zoomable')
img.addEventListener('click', () => {
openViewer(img.currentSrc || img.src, img.alt)
})
})
}
export default {
extends: DefaultTheme,
setup() {
const route = useRoute()
onMounted(() => {
ensureViewer()
bindImages()
})
// 路由切换后重新绑定(文章内容异步渲染)
watch(
() => route.path,
() => {
closeViewer()
nextTick(() => bindImages())
},
)
},
}