Files
xinghuoapi/frontend/src/components/common/ImageUpload.vue

142 lines
4.1 KiB
Vue

<template>
<div class="flex items-start gap-4">
<!-- Preview Box -->
<div class="flex-shrink-0">
<div
class="flex items-center justify-center overflow-hidden rounded-xl border-2 border-dashed border-gray-300 bg-gray-50 dark:border-dark-600 dark:bg-dark-800"
:class="[previewSizeClass, { 'border-solid': !!modelValue }]"
>
<!-- SVG mode: render inline -->
<span
v-if="mode === 'svg' && modelValue"
class="text-gray-600 dark:text-gray-300 [&>svg]:h-full [&>svg]:w-full"
:class="innerSizeClass"
v-html="modelValue"
></span>
<!-- Image mode: show as img -->
<img
v-else-if="mode === 'image' && modelValue"
:src="modelValue"
alt=""
class="h-full w-full object-contain"
/>
<!-- Empty placeholder -->
<svg
v-else
class="text-gray-400 dark:text-dark-500"
:class="placeholderSizeClass"
fill="none"
viewBox="0 0 24 24"
stroke="currentColor"
>
<path
stroke-linecap="round"
stroke-linejoin="round"
stroke-width="1.5"
d="M4 16l4.586-4.586a2 2 0 012.828 0L16 16m-2-2l1.586-1.586a2 2 0 012.828 0L20 14m-6-6h.01M6 20h12a2 2 0 002-2V6a2 2 0 00-2-2H6a2 2 0 00-2 2v12a2 2 0 002 2z"
/>
</svg>
</div>
</div>
<!-- Controls -->
<div class="flex-1 space-y-2">
<div class="flex items-center gap-2">
<label class="btn btn-secondary btn-sm cursor-pointer">
<input
type="file"
:accept="acceptTypes"
class="hidden"
@change="handleUpload"
/>
<Icon name="upload" size="sm" class="mr-1.5" :stroke-width="2" />
{{ uploadLabel }}
</label>
<button
v-if="modelValue"
type="button"
class="btn btn-secondary btn-sm text-red-600 hover:text-red-700 dark:text-red-400"
@click="$emit('update:modelValue', '')"
>
<Icon name="trash" size="sm" class="mr-1.5" :stroke-width="2" />
{{ removeLabel }}
</button>
</div>
<p v-if="hint" class="text-xs text-gray-500 dark:text-gray-400">{{ hint }}</p>
<p v-if="error" class="text-xs text-red-500">{{ error }}</p>
</div>
</div>
</template>
<script setup lang="ts">
import { ref, computed } from 'vue'
import Icon from '@/components/icons/Icon.vue'
const props = withDefaults(defineProps<{
modelValue: string
mode?: 'image' | 'svg'
size?: 'sm' | 'md'
uploadLabel?: string
removeLabel?: string
hint?: string
maxSize?: number // bytes
}>(), {
mode: 'image',
size: 'md',
uploadLabel: 'Upload',
removeLabel: 'Remove',
hint: '',
maxSize: 300 * 1024,
})
const emit = defineEmits<{
'update:modelValue': [value: string]
}>()
const error = ref('')
const acceptTypes = computed(() => props.mode === 'svg' ? '.svg' : 'image/*')
const previewSizeClass = computed(() => props.size === 'sm' ? 'h-14 w-14' : 'h-20 w-20')
const innerSizeClass = computed(() => props.size === 'sm' ? 'h-7 w-7' : 'h-12 w-12')
const placeholderSizeClass = computed(() => props.size === 'sm' ? 'h-5 w-5' : 'h-8 w-8')
function handleUpload(event: Event) {
const input = event.target as HTMLInputElement
const file = input.files?.[0]
error.value = ''
if (!file) return
if (props.maxSize && file.size > props.maxSize) {
error.value = `File too large (${(file.size / 1024).toFixed(1)} KB), max ${(props.maxSize / 1024).toFixed(0)} KB`
input.value = ''
return
}
const reader = new FileReader()
if (props.mode === 'svg') {
reader.onload = (e) => {
const text = e.target?.result as string
if (text) emit('update:modelValue', text.trim())
}
reader.readAsText(file)
} else {
if (!file.type.startsWith('image/')) {
error.value = 'Please select an image file'
input.value = ''
return
}
reader.onload = (e) => {
emit('update:modelValue', e.target?.result as string)
}
reader.readAsDataURL(file)
}
reader.onerror = () => {
error.value = 'Failed to read file'
}
input.value = ''
}
</script>