本图片预览组件主要包括以下功能：
展示图片时，可设置鼠标悬浮时的预览文本；图像无法加载时要显示的描述；自定义图像高度和宽度；设置图像如何适应容器高度和宽度（fill | contain | cover | none | scale-down）,参考 object-fit；传入单张图像或图像数组；设置图像缩放比率；设置最大最小缩放比例；
单张图片预览时，左上角展示图片名称：水平镜像或垂直镜像；可顺时针旋转或逆时针旋转；还原图片；放大缩小；鼠标任意拖动；鼠标双击图片还原；使用触摸板或鼠标滚轮控制图片缩放；
多张图片预览时，除了单张展示的功能以外：可点击左右切换按钮预览多张图片；使用键盘上下左右按键进行图片切换；设置是否可以循环切换图片；
可自定义设置以下属性：
图像地址 | 图像地址数组（src），类型：string | Array<{src: string, alt?: string}>，默认 undefined
图像名称（name），没有传入图片名时自动从图像地址 src 中读取，类型：string，默认 undefined
图像宽度（width），类型：string | number | (string | number)[]，单位 px，默认 100
图像高度（height），类型：string | number | (string | number)[]，单位 px，默认 100
是否显示边框（bordered），类型：boolean，默认 true
图形如何适应容器高度和宽度（fit），类型：'contain' | 'fill' | 'cover' | 'none' | 'scale-down'，默认 'contain'，参考 object-fit
预览文本（preview），类型：string | slot，默认 '预览'
Space 组件属性配置（spaceProps），用于配置多张展示图片时的排列方式，类型：object，默认 {}
Spin 组件属性配置（spinProps），用于配置图片加载中样式，类型：object，默认 {}
每次缩放比率（zoomRatio），类型：number，默认 0.1
最小缩放比例（minZoomScale），类型：number，默认 0.1
最大缩放比例（maxZoomScale），类型：number，默认 10
缩放移动旋转图片后，是否可以双击还原（resetOnDbclick），类型：boolean，默认 true
是否可以循环切换图片（loop），类型：boolean，默认 false
相册模式，即从一张展示图片点开相册（album），类型：boolean，默认 false
效果如下图：在线预览
预览时样式：
正常展示时样式：
图片加载时样式：
鼠标悬浮时样式：
①创建图片预览组件Image.vue：
<script setup lang="ts">
import { computed, ref, watchEffect, nextTick } from 'vue'
import Space from '../space'
import Spin from '../spin'
import { add } from '../utils'
interface Image {
src: string // 图像地址
name?: string // 图像名称
}
interface Props {
src?: string | Image[] // 图像地址 | 图像地址数组
name?: string // 图像名称，没有传入图片名时自动从图像地址 src 中读取
width?: string | number | (string | number)[] // 图像宽度，单位 px
height?: string | number | (string | number)[] // 图像高度，单位 px
bordered?: boolean // 是否显示边框
fit?: 'contain' | 'fill' | 'cover' | 'none' | 'scale-down' // 图片在容器内的的适应类型
preview?: string // 预览文本 string | slot
spaceProps?: object // Space 组件属性配置，用于配置多张展示图片时的排列方式
spinProps?: object // Spin 组件属性配置，用于配置图片加载中样式
zoomRatio?: number // 每次缩放比率
minZoomScale?: number // 最小缩放比例
maxZoomScale?: number // 最大缩放比例
resetOnDbclick?: boolean // 缩放移动旋转图片后，是否可以双击还原
loop?: boolean // 是否可以循环切换图片
album?: boolean // 是否相册模式，即从一张展示图片点开相册
}
const props = withDefaults(defineProps<Props>(), {
src: undefined,
name: undefined,
width: 100,
height: 100,
bordered: true,
fit: 'contain',
preview: '预览',
spaceProps: () => ({}),
spinProps: () => ({}),
zoomRatio: 0.1,
minZoomScale: 0.1,
maxZoomScale: 10,
resetOnDbclick: true,
loop: false,
album: false
})
const images = ref<any[]>([])
watchEffect(() => {
images.value = getImages()
})
function getImages() {
if (Array.isArray(props.src)) {
return props.src
} else {
return [
{
src: props.src,
name: props.name
}
]
}
}
const imageCount = computed(() => {
return images.value.length
})
const complete = ref(Array(imageCount.value).fill(false)) // 图片是否加载完成
const loaded = ref(Array(imageCount.value).fill(false)) // 预览图片是否加载完成
const previewRef = ref() // DOM 引用
const previewIndex = ref(0) // 当前预览的图片索引
const showPreview = ref(false) // 是否显示预览
const rotate = ref(0) // 预览图片旋转角度
const scale = ref(1) // 缩放比例
const swapX = ref(1) // 水平镜像数值符号
const swapY = ref(1) // 垂直镜像数值符号
const sourceX = ref(0) // 拖动开始时位置
const sourceY = ref(0) // 拖动开始时位置
const dragX = ref(0) // 拖动横向距离
const dragY = ref(0) // 拖动纵向距离
function onComplete(n: number) {
// 图片加载完成
complete.value[n] = true
}
function onLoaded(index: number) {
// 预览图片加载完成
loaded.value[index] = true
}
function getImageName(image: Image) {
// 从图像地址src中获取图像名称
if (image) {
if (image.name) {
return image.name
} else {
const res = image.src.split('?')[0].split('/')
return res[res.length - 1]
}
}
}
function getImageSize(size: string | number | (string | number)[], index: number): string {
if (Array.isArray(size)) {
if (typeof size[index] === 'number') {
return size[index] + 'px'
}
return size[index]
} else {
if (typeof size === 'number') {
return size + 'px'
}
return size
}
}
function onKeyboard(e: KeyboardEvent) {
if (showPreview.value && imageCount.value > 1) {
if (e.key === 'ArrowLeft' || e.key === 'ArrowUp') {
onSwitchLeft()
}
if (e.key === 'ArrowRight' || e.key === 'ArrowDown') {
onSwitchRight()
}
}
}
function onPreview(index: number) {
scale.value = 1
rotate.value = 0
dragX.value = 0
dragY.value = 0
showPreview.value = true
previewIndex.value = index
nextTick(() => {
previewRef.value.focus()
})
}
defineExpose({
preview: onPreview
})
function onClose() {
// 关闭
showPreview.value = false
}
function onZoomin() {
// 放大
if (scale.value + props.zoomRatio > props.maxZoomScale) {
scale.value = props.maxZoomScale
} else {
scale.value = add(scale.value, props.zoomRatio)
}
}
function onZoomout() {
// 缩小
if (scale.value - props.zoomRatio < props.minZoomScale) {
scale.value = props.minZoomScale
} else {
scale.value = add(scale.value, -props.zoomRatio)
}
}
function onResetOrigin() {
// 重置图片为初始状态
scale.value = 1
swapX.value = 1
swapY.value = 1
rotate.value = 0
dragX.value = 0
dragY.value = 0
}
function onClockwiseRotate() {
// 顺时针旋转
rotate.value += 90
}
function onAnticlockwiseRotate() {
// 逆时针旋转
rotate.value -= 90
}
function onHorizontalMirror() {
swapX.value *= -1
}
function onVerticalMirror() {
swapY.value *= -1
}
function onWheel(e: WheelEvent) {
// 鼠标滚轮缩放
// e.preventDefault() // 禁止浏览器捕获滑动事件
const scrollZoom = e.deltaY * props.zoomRatio * 0.1 // 滚轮的纵向滚动量
if (scale.value === props.minZoomScale && scrollZoom > 0) {
return
}
if (scale.value === props.maxZoomScale && scrollZoom < 0) {
return
}
if (scale.value - scrollZoom < props.minZoomScale) {
scale.value = props.minZoomScale
} else if (scale.value - scrollZoom > props.maxZoomScale) {
scale.value = props.maxZoomScale
} else {
scale.value = add(scale.value, -scrollZoom)
}
}
function onMouseDown(event: MouseEvent) {
// event.preventDefault() // 消除拖动元素时的阴影
const el = event.target // 当前点击的元素
const imageRect = (el as Element).getBoundingClientRect()
const top = imageRect.top // 图片上边缘距浏览器窗口上边界的距离
const bottom = imageRect.bottom // 图片下边缘距浏览器窗口上边界的距离
const right = imageRect.right // 图片右边缘距浏览器窗口左边界的距离
const left = imageRect.left // 图片左边缘距浏览器窗口左边界的距离
const viewportWidth = window.innerWidth // 视口宽度
const viewportHeight = window.innerHeight // 视口高度
sourceX.value = event.clientX // 鼠标按下时相对于视口左边缘的X坐标
sourceY.value = event.clientY // 鼠标按下时相对于视口上边缘的Y坐标
const sourceDragX = dragX.value // 鼠标按下时图片的X轴偏移量
const sourceDragY = dragY.value // 鼠标按下时图片的Y轴偏移量
window.onmousemove = (e: MouseEvent) => {
// e.clientX返回事件被触发时鼠标指针相对于浏览器可视窗口的水平坐标
dragX.value = sourceDragX + e.clientX - sourceX.value
dragY.value = sourceDragY + e.clientY - sourceY.value
}
window.onmouseup = () => {
if (dragX.value > sourceDragX + viewportWidth - right) {
// 溢出视口右边缘
dragX.value = sourceDragX + viewportWidth - right
}
if (dragX.value < sourceDragX - left) {
// 溢出视口左边缘
dragX.value = sourceDragX - left
}
if (dragY.value > sourceDragY + viewportHeight - bottom) {
// 溢出视口下边缘
dragY.value = sourceDragY + viewportHeight - bottom
}
if (dragY.value < sourceDragY - top) {
// 溢出视口上边缘
dragY.value = sourceDragY - top
}
window.onmousemove = null
}
}
function onSwitchLeft() {
if (props.loop) {
previewIndex.value = (previewIndex.value - 1 + imageCount.value) % imageCount.value
} else {
if (previewIndex.value > 0) {
previewIndex.value--
}
}
onResetOrigin()
}
function onSwitchRight() {
if (props.loop) {
previewIndex.value = (previewIndex.value + 1) % imageCount.value
} else {
if (previewIndex.value < imageCount.value - 1) {
previewIndex.value++
}
}
onResetOrigin()
}
</script>
<template>
<div class="m-image-wrap">
<Space gap="small" v-bind="spaceProps">
<div
v-show="!album || (album && index === 0)"
class="m-image"
:class="{ 'image-bordered': bordered, 'image-hover-mask': complete[index] }"
:style="`width: ${getImageSize(props.width, index)}; height: ${getImageSize(props.height, index)};`"
v-for="(image, index) in images"
:key="index"
>
<Spin :spinning="!complete[index]" indicator="dynamic-circle" size="small" v-bind="spinProps">
<img
class="u-image"
:style="`object-fit: ${fit};`"
@load="onComplete(index)"
:src="image.src"
:alt="getImageName(image)"
/>
</Spin>
<div class="m-image-mask" @click="onPreview(index)">
<div class="image-mask-info">
<svg class="eye-svg" focusable="false" data-icon="eye" aria-hidden="true" viewBox="64 64 896 896">
<path
d="M942.2 486.2C847.4 286.5 704.1 186 512 186c-192.2 0-335.4 100.5-430.2 300.3a60.3 60.3 0 000 51.5C176.6 737.5 319.9 838 512 838c192.2 0 335.4-100.5 430.2-300.3 7.7-16.2 7.7-35 0-51.5zM512 766c-161.3 0-279.4-81.8-362.7-254C232.6 339.8 350.7 258 512 258c161.3 0 279.4 81.8 362.7 254C791.5 684.2 673.4 766 512 766zm-4-430c-97.2 0-176 78.8-176 176s78.8 176 176 176 176-78.8 176-176-78.8-176-176-176zm0 288c-61.9 0-112-50.1-112-112s50.1-112 112-112 112 50.1 112 112-50.1 112-112 112z"
></path>
</svg>
<p class="mask-pre">
<slot name="preview">{
{ preview }}</slot>
</p>
</div>
</div>
</div>
</Space>
<Transition name="fade">
<div v-show="showPreview" class="m-preview-mask"></div>
</Transition>
<Transition name="zoom">
<div
v-show="showPreview"
ref="previewRef"
class="m-preview-wrap"
tabindex="-1"
@click.self="onClose"
@wheel.prevent="onWheel"
@keydown="onKeyboard"
@keydown.esc="onClose"
>
<div class="m-preview-body">
<div class="m-preview-operations">
<a
class="previe-name"
:href="images[previewIndex].src"
target="_blank"
:title="getImageName(images[previewIndex])"
>
{
{ getImageName(images[previewIndex]) }}
</a>
<p class="preview-progress" v-show="Array.isArray(src)">{
{ previewIndex + 1 }} / {
{ imageCount }}</p>
<div class="preview-operation" title="关闭" @click="onClose">
<svg class="icon-svg" focusable="false" data-icon="close" aria-hidden="true" viewBox="64 64 896 896">
<path
d="M563.8 512l262.5-312.9c4.4-5.2.7-13.1-6.1-13.1h-79.8c-4.7 0-9.2 2.1-12.3 5.7L511.6 449.8 295.1 191.7c-3-3.6-7.5-5.7-12.3-5.7H203c-6.8 0-10.5 7.9-6.1 13.1L459.4 512 196.9 824.9A7.95 7.95 0 00203 838h79.8c4.7 0 9.2-2.1 12.3-5.7l216.5-258.1 216.5 258.1c3 3.6 7.5 5.7 12.3 5.7h79.8c6.8 0 10.5-7.9 6.1-13.1L563.8 512z"
></path>
</svg>
</div>
<div
class="preview-operation"
:class="{ 'operation-disabled': scale === maxZoomScale }"
title="放大"
@click="onZoomin"
>
<svg class="icon-svg" focusable="false" data-icon="zoom-in" aria-hidden="true" viewBox="64 64 896 896">
<path
d="M637 443H519V309c0-4.4-3.6-8-8-8h-60c-4.4 0-8 3.6-8 8v134H325c-4.4 0-8 3.6-8 8v60c0 4.4 3.6 8 8 8h118v134c0 4.4 3.6 8 8 8h60c4.4 0 8-3.6 8-8V519h118c4.4 0 8-3.6 8-8v-60c0-4.4-3.6-8-8-8zm284 424L775 721c122.1-148.9 113.6-369.5-26-509-148-148.1-388.4-148.1-537 0-148.1 148.6-148.1 389 0 537 139.5 139.6 360.1 148.1 509 26l146 146c3.2 2.8 8.3 2.8 11 0l43-43c2.8-2.7 2.8-7.8 0-11zM696 696c-118.8 118.7-311.2 118.7-430 0-118.7-118.8-118.7-311.2 0-430 118.8-118.7 311.2-118.7 430 0 118.7 118.8 118.7 311.2 0 430z"
></path>
</svg>
</div>
<div
class="preview-operation"
:class="{ 'operation-disabled': scale === minZoomScale }"
title="缩小"
@click="onZoomout"
>
<svg class="icon-svg" focusable="false" data-icon="zoom-out" aria-hidden="true" viewBox="64 64 896 896">
<path
d="M637 443H325c-4.4 0-8 3.6-8 8v60c0 4.4 3.6 8 8 8h312c4.4 0 8-3.6 8-8v-60c0-4.4-3.6-8-8-8zm284 424L775 721c122.1-148.9 113.6-369.5-26-509-148-148.1-388.4-148.1-537 0-148.1 148.6-148.1 389 0 537 139.5 139.6 360.1 148.1 509 26l146 146c3.2 2.8 8.3 2.8 11 0l43-43c2.8-2.7 2.8-7.8 0-11zM696 696c-118.8 118.7-311.2 118.7-430 0-118.7-118.8-118.7-311.2 0-430 118.8-118.7 311.2-118.7 430 0 118.7 118.8 118.7 311.2 0 430z"
></path>
</svg>
</div>
<div class="preview-operation" title="还原" @click="onResetOrigin">
<svg class="icon-svg" focusable="false" data-icon="expand" aria-hidden="true" viewBox="64 64 896 896">
<path
d="M342 88H120c-17.7 0-32 14.3-32 32v224c0 8.8 7.2 16 16 16h48c8.8 0 16-7.2 16-16V168h174c8.8 0 16-7.2 16-16v-48c0-8.8-7.2-16-16-16zm578 576h-48c-8.8 0-16 7.2-16 16v176H682c-8.8 0-16 7.2-16 16v48c0 8.8 7.2 16 16 16h222c17.7 0 32-14.3 32-32V680c0-8.8-7.2-16-16-16zM342 856H168V680c0-8.8-7.2-16-16-16h-48c-8.8 0-16 7.2-16 16v224c0 17.7 14.3 32 32 32h222c8.8 0 16-7.2 16-16v-48c0-8.8-7.2-16-16-16zM904 88H682c-8.8 0-16 7.2-16 16v48c0 8.8 7.2 16 16 16h174v176c0 8.8 7.2 16 16 16h48c8.8 0 16-7.2 16-16V120c0-17.7-14.3-32-32-32z"
></path>
</svg>
</div>
<div class="preview-operation" title="向右旋转" @click="onClockwiseRotate">
<svg class="icon-svg" focusable="false" data-icon="rotate-right" aria-hidden="true" viewBox="64 64 896 896">
<path
d="M480.5 251.2c13-1.6 25.9-2.4 38.8-2.5v63.9c0 6.5 7.5 10.1 12.6 6.1L660 217.6c4-3.2 4-9.2 0-12.3l-128-101c-5.1-4-12.6-.4-12.6 6.1l-.2 64c-118.6.5-235.8 53.4-314.6 154.2A399.75 399.75 0 00123.5 631h74.9c-.9-5.3-1.7-10.7-2.4-16.1-5.1-42.1-2.1-84.1 8.9-124.8 11.4-42.2 31-81.1 58.1-115.8 27.2-34.7 60.3-63.2 98.4-84.3 37-20.6 76.9-33.6 119.1-38.8z"
></path>
<path
d="M880 418H352c-17.7 0-32 14.3-32 32v414c0 17.7 14.3 32 32 32h528c17.7 0 32-14.3 32-32V450c0-17.7-14.3-32-32-32zm-44 402H396V494h440v326z"
></path>
</svg>
</div>
<div class="preview-operation" title="向左旋转" @click="onAnticlockwiseRotate">
<svg class="icon-svg" focusable="false" data-icon="rotate-left" aria-hidden="true" viewBox="64 64 896 896">
<path
d="M672 418H144c-17.7 0-32 14.3-32 32v414c0 17.7 14.3 32 32 32h528c17.7 0 32-14.3 32-32V450c0-17.7-14.3-32-32-32zm-44 402H188V494h440v326z"
></path>
<path
d="M819.3 328.5c-78.8-100.7-196-153.6-314.6-154.2l-.2-64c0-6.5-7.6-10.1-12.6-6.1l-128 101c-4 3.1-3.9 9.1 0 12.3L492 318.6c5.1 4 12.7.4 12.6-6.1v-63.9c12.9.1 25.9.9 38.8 2.5 42.1 5.2 82.1 18.2 119 38.7 38.1 21.2 71.2 49.7 98.4 84.3 27.1 34.7 46.7 73.7 58.1 115.8a325.95 325.95 0 016.5 140.9h74.9c14.8-103.6-11.3-213-81-302.3z"
></path>
</svg>
</div>
<div class="preview-operation" title="水平镜像" @click="onHorizontalMirror">
<svg class="icon-svg" focusable="false" data-icon="swap" aria-hidden="true" viewBox="64 64 896 896">
<path
d="M847.9 592H152c-4.4 0-8 3.6-8 8v60c0 4.4 3.6 8 8 8h605.2L612.9 851c-4.1 5.2-.4 13 6.3 13h72.5c4.9 0 9.5-2.2 12.6-6.1l168.8-214.1c16.5-21 1.6-51.8-25.2-51.8zM872 356H266.8l144.3-183c4.1-5.2.4-13-6.3-13h-72.5c-4.9 0-9.5 2.2-12.6 6.1L150.9 380.2c-16.5 21-1.6 51.8 25.1 51.8h696c4.4 0 8-3.6 8-8v-60c0-4.4-3.6-8-8-8z"
></path>
</svg>
</div>
<div class="preview-operation" title="垂直镜像" @click="onVerticalMirror">
<svg
class="icon-svg"
style="transform: rotate(90deg)"
focusable="false"
data-icon="swap"
aria-hidden="true"
viewBox="64 64 896 896"
>
<path
d="M847.9 592H152c-4.4 0-8 3.6-8 8v60c0 4.4 3.6 8 8 8h605.2L612.9 851c-4.1 5.2-.4 13 6.3 13h72.5c4.9 0 9.5-2.2 12.6-6.1l168.8-214.1c16.5-21 1.6-51.8-25.2-51.8zM872 356H266.8l144.3-183c4.1-5.2.4-13-6.3-13h-72.5c-4.9 0-9.5 2.2-12.6 6.1L150.9 380.2c-16.5 21-1.6 51.8 25.1 51.8h696c4.4 0 8-3.6 8-8v-60c0-4.4-3.6-8-8-8z"
></path>
</svg>
</div>
</div>
<div class="m-preview-image" :style="`transform: translate3d(${dragX}px, ${dragY}px, 0px);`">
<Spin
:spinning="!loaded[index]"
indicator="dynamic-circle"
v-show="previewIndex === index"
v-for="(image, index) in images"
:key="index"
>
<img
class="preview-image"
:style="`transform: scale3d(${swapX * scale}, ${swapY * scale}, 1) rotate(${rotate}deg);`"
:src="image.src"
:alt="getImageName(image)"
@mousedown.prevent="onMouseDown($event)"
@load="onLoaded(index)"
@dblclick="resetOnDbclick ? onResetOrigin() : () => false"
/>
</Spin>
</div>
<template v-if="imageCount > 1">
<div
class="switch-left"
:class="{ 'switch-disabled': previewIndex === 0 && !loop }"
@click="onSwitchLeft"
>
<svg focusable="false" class="switch-svg" data-icon="left" aria-hidden="true" viewBox="64 64 896 896">
<path
d="M724 218.3V141c0-6.7-7.7-10.4-12.9-6.3L260.3 486.8a31.86 31.86 0 000 50.3l450.8 352.1c5.3 4.1 12.9.4 12.9-6.3v-77.3c0-4.9-2.3-9.6-6.1-12.6l-360-281 360-281.1c3.8-3 6.1-7.7 6.1-12.6z"
></path>
</svg>
</div>
<div
class="switch-right"
:class="{ 'switch-disabled': previewIndex === imageCount - 1 && !loop }"
@click="onSwitchRight"
>
<svg focusable="false" class="switch-svg" data-icon="right" aria-hidden="true" viewBox="64 64 896 896">
<path
d="M765.7 486.8L314.9 134.7A7.97 7.97 0 00302 141v77.3c0 4.9 2.3 9.6 6.1 12.6l360 281.1-360 281.1c-3.9 3-6.1 7.7-6.1 12.6V883c0 6.7 7.7 10.4 12.9 6.3l450.8-352.1a31.96 31.96 0 000-50.4z"
></path>
</svg>
</div>
</template>
</div>
</div>
</Transition>
</div>
</template>
<style lang="less" scoped>
.fade-enter-active,
.fade-leave-active {
transition: opacity 0.2s linear;
}
.fade-enter-from,
.fade-leave-to {
opacity: 0;
}
.zoom-enter-active {
transition: all 0.3s;
}
.zoom-leave-active {
transition: all 0.2s cubic-bezier(0.78, 0.14, 0.15, 0.86);
}
.zoom-enter-from,
.zoom-leave-to {
opacity: 0;
transform: scale(0.2);
}
.m-image-wrap {
display: inline-block;
.image-hover-mask {
&:hover {
.m-image-mask {
opacity: 1;
pointer-events: auto;
}
}
}
.m-image {
position: relative;
display: inline-block;
vertical-align: top;
border-radius: 8px;
overflow: hidden;
.u-image {
display: inline-block;
width: 100%;
height: 100%;
vertical-align: bottom;
}
.m-image-mask {
// top right bottom left 简写为 inset: 0
// insert 无论元素的书写模式、行内方向和文本朝向如何，其所定义的都不是逻辑偏移而是实体偏移
position: absolute;
inset: 0;
display: flex;
align-items: center;
justify-content: center;
color: #fff;
background: rgba(0, 0, 0, 0.5);
cursor: pointer;
opacity: 0;
pointer-events: none;
transition: opacity 0.3s;
.image-mask-info {
overflow: hidden;
white-space: nowrap;
text-overflow: ellipsis;
padding: 0 4px;
.eye-svg {
display: inline-flex;
align-items: center;
margin-right: 4px;
vertical-align: -0.125em;
width: 14px;
height: 14px;
fill: #fff;
}
.mask-pre {
display: inline-block;
color: #fff;
}
}
}
}
.image-bordered {
border: 1px solid #d9d9d9;
}
.m-preview-mask {
position: fixed;
inset: 0;
z-index: 1000;
height: 100%;
background-color: rgba(0, 0, 0, 0.45);
}
.m-preview-wrap {
position: fixed;
top: 0;
left: 0;
bottom: 0;
right: 0;
overflow: auto;
outline: none;
z-index: 1080;
height: 100%;
text-align: center;
.m-preview-body {
position: absolute;
inset: 0;
overflow: hidden;
pointer-events: none;
.m-preview-operations {
position: fixed;
width: 100%;
z-index: 9;
display: flex;
flex-direction: row-reverse;
align-items: center;
background: rgba(0, 0, 0, 0.1);
height: 42px;
pointer-events: auto;
.previe-name {
position: absolute;
left: 12px;
font-size: 14px;
color: rgb(255, 255, 255);
line-height: 1.57;
max-width: calc(50% - 60px);
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;
transition: color 0.3s;
&:hover {
color: @themeColor;
}
}
.preview-progress {
position: absolute;
left: 50%;
transform: translateX(-50%);
font-size: 14px;
color: rgb(255, 255, 255);
line-height: 1.57;
}
.preview-operation {
line-height: 1;
padding: 12px;
border-radius: 8px;
cursor: pointer;
transition: all 0.3s;
&:not(:last-child) {
margin-left: 12px;
}
&:hover {
background: rgba(0, 0, 0, 0.25);
}
.icon-svg {
display: inline-block;
width: 18px;
height: 18px;
vertical-align: bottom;
fill: #fff;
}
}
.operation-disabled {
color: rgba(255, 255, 255, 0.25);
pointer-events: none;
.icon-svg {
fill: rgba(255, 255, 255, 0.25);
}
}
}
.m-preview-image {
position: absolute;
z-index: 3;
inset: 0;
transition: transform 0.3s cubic-bezier(0.215, 0.61, 0.355, 1) 0s;
display: flex;
justify-content: center;
align-items: center;
.preview-image {
display: inline-block;
vertical-align: middle;
max-width: 100%;
max-height: 100vh;
cursor: grab;
transition: transform 0.3s cubic-bezier(0.215, 0.61, 0.355, 1) 0s;
user-select: none;
pointer-events: auto;
}
}
.switch-left {
inset-inline-start: 12px;
position: fixed;
inset-block-start: 50%;
z-index: 1081;
display: flex;
align-items: center;
justify-content: center;
width: 40px;
height: 40px;
margin-top: -20px;
color: rgb(255, 255, 255);
background: rgba(0, 0, 0, 0.1);
border-radius: 50%;
transform: translateY(-50%);
cursor: pointer;
transition: all 0.3s;
pointer-events: auto;
user-select: none;
&:hover {
background: rgba(0, 0, 0, 0.2);
}
.switch-svg {
width: 18px;
height: 18px;
fill: #fff;
}
}
.switch-right {
inset-inline-end: 12px;
position: fixed;
inset-block-start: 50%;
z-index: 1081;
display: flex;
align-items: center;
justify-content: center;
width: 40px;
height: 40px;
margin-top: -20px;
color: rgb(255, 255, 255);
background: rgba(0, 0, 0, 0.1);
border-radius: 50%;
transform: translateY(-50%);
cursor: pointer;
transition: all 0.3s;
pointer-events: auto;
&:hover {
background: rgba(0, 0, 0, 0.2);
}
.switch-svg {
width: 18px;
height: 18px;
fill: #fff;
}
}
.switch-disabled {
color: rgba(255, 255, 255, 0.25);
background: transparent;
cursor: not-allowed;
&:hover {
background: transparent;
}
.switch-svg {
fill: rgba(255, 255, 255, 0.25);
}
}
}
}
}
</style>
②在要使用的页面引入：
<script setup lang="ts">
import Image from './Image.vue'
import { ref } from 'vue'
const images = ref([
{
src: 'https://cdn.jsdelivr.net/gh/themusecatcher/resources@0.0.5/1.jpg',
name: 'image-1.jpg'
},
{
src: 'https://cdn.jsdelivr.net/gh/themusecatcher/resources@0.0.5/2.jpg',
name: 'image-2.jpg'
},
{
src: 'https://cdn.jsdelivr.net/gh/themusecatcher/resources@0.0.5/3.jpg',
name: 'image-3.jpg'
},
{
src: 'https://cdn.jsdelivr.net/gh/themusecatcher/resources@0.0.5/4.jpg',
name: 'image-4.jpg'
},
{
src: 'https://cdn.jsdelivr.net/gh/themusecatcher/resources@0.0.5/5.jpg',
name: 'image-5.jpg'
}
])
</script>
<template>
<div>
<h1>{
{ $route.name }} {
{ $route.meta.title }}</h1>
<h2 class="mt30 mb10">基本使用</h2>
<Image src="https://cdn.jsdelivr.net/gh/themusecatcher/resources@0.0.5/1.jpg" />
<h2 class="mt30 mb10">多张图片预览</h2>
<h3 class="mb10">可循环切换图片，并支持键盘 (left / right / up / down) 按键切换</h3>
<Image :src="images" loop />
<h2 class="mt30 mb10">自定义样式</h2>
<h3 class="mb10">自定义宽高；同时图片覆盖容器；预览文本设为 preview</h3>
<Image :src="images" :width="[100, 200, 100, 200, 100]" :space-props="{ width: 416 }" fit="cover" loop>
<template #preview>
<p class="u-pre">preview</p>
</template>
</Image>
<h2 class="mt30 mb10">自定义排列方式 & 加载中样式</h2>
<Image
:src="images"
:space-props="{ width: 632, gap: 16 }"
:spin-props="{ tip: 'loading', indicator: 'spin-line', color: '#fadb14' }"
loop
/>
<h2 class="mt30 mb10">无边框</h2>
<Image :src="images" :bordered="false" fit="cover" loop />
<h2 class="mt30 mb10">相册模式</h2>
<Image :src="images" album loop />
<h2 class="mt30 mb10">自定义预览配置</h2>
<h3 class="mb10">更改缩放比率和最大最小缩放比例</h3>
<Image
:zoom-ratio="0.2"
:min-zoom-scale="0.5"
:max-zoom-scale="2"
src="https://cdn.jsdelivr.net/gh/themusecatcher/resources@0.0.5/1.jpg"
/>
</div>
</template>
<style lang="less" scoped>
.u-pre {
display: inline-block;
font-size: 16px;
}
</style>
