开发预览更新于 2026-05-10

ImagePreview 图片大图预览

全屏图片查看器，支持滚轮缩放、鼠标拖拽、键盘 +/− / 0 / Esc 控制。

基础用法

通常用一个缩略图触发预览：缩略图设为 cursor: zoom-in，点击时把 open 切到 true。

滚轮：缩放
鼠标拖拽：平移
键盘 + / -：缩放
键盘 0：恢复 100%
键盘 Esc：关闭

背景

<script setup lang="ts">
import { ref } from 'vue';
import { CfImagePreview, CfButton } from '@chufix-design/vue';

const open = ref(false);
const src = 'https://images.unsplash.com/photo-1503023345310-bd7c1de61c7d?w=1600&h=900&fit=crop';
</script>

<template>
  <div style="display: flex; flex-direction: column; gap: 12px; align-items: flex-start;">
    <img
      :src="src.replace('1600&h=900', '320&h=180')"
      alt="缩略图"
      style="width: 200px; height: auto; border-radius: 8px; cursor: zoom-in;"
      @click="open = true"
    />
    <CfButton size="sm" @click="open = true">点击预览大图</CfButton>
    <CfImagePreview v-model="open" :src="src" alt="示例图" />
  </div>
</template>

<script setup>
import { ref } from 'vue';
import { CfImagePreview, CfButton } from '@chufix-design/vue';

const open = ref(false);
const src = 'https://images.unsplash.com/photo-1503023345310-bd7c1de61c7d?w=1600&h=900&fit=crop';
</script>

<template>
  <div style="display: flex; flex-direction: column; gap: 12px; align-items: flex-start;">
    <img
      :src="src.replace('1600&h=900', '320&h=180')"
      alt="缩略图"
      style="width: 200px; height: auto; border-radius: 8px; cursor: zoom-in;"
      @click="open = true"
    />
    <CfButton size="sm" @click="open = true">点击预览大图</CfButton>
    <CfImagePreview v-model="open" :src="src" alt="示例图" />
  </div>
</template>

<img src={thumbSrc} onClick={() => setOpen(true)} style={{ cursor: 'zoom-in' }} />
<CfImagePreview open={open} onOpenChange={setOpen} src={fullSrc} alt="示例" />

<img src={thumbSrc} onClick={() => setOpen(true)} style={{ cursor: 'zoom-in' }} />
<CfImagePreview open={open} onOpenChange={setOpen} src={fullSrc} alt="示例" />

API

属性	类型	默认值	说明
`src`	`string`	`—`	大图地址
`alt`	`string`	`''`	替代文本
`open` / `modelValue`	`boolean`	`—`	受控显示状态
`defaultOpen`	`boolean`	`false`	非受控初始显示状态

事件：onOpenChange(open) / onClose()。