fix(frontend): 统一原生表单控件样式

2026-09-05 09:57:33 +08:00
parent 311f953855
commit d15ceafbe0
5 changed files with 150 additions and 17 deletions
@@ -0,0 +1,36 @@
+// @vitest-environment happy-dom
+import { mount } from '@vue/test-utils'
+import { describe, expect, it } from 'vitest'
+import FilePicker from './FilePicker.vue'
+
+describe('FilePicker', () => {
+  it('keeps the native file input accessible and reports the selected file', async () => {
+    const wrapper = mount(FilePicker, {
+      props: { file: null, label: '选择文件', emptyLabel: '尚未选择文件', accept: '.json' },
+    })
+    const input = wrapper.get('input[type="file"]')
+    const file = new File(['{}'], 'rules.json', { type: 'application/json' })
+    Object.defineProperty(input.element, 'files', { value: [file], configurable: true })
+
+    await input.trigger('change')
+
+    expect(wrapper.emitted('select')).toEqual([[file]])
+    expect(wrapper.get('label').attributes('for')).toBe(input.attributes('id'))
+    expect(wrapper.text()).toContain('尚未选择文件')
+
+    await wrapper.setProps({ file })
+    expect(wrapper.text()).toContain('rules.json')
+  })
+
+  it('emits null when the native selection is cleared', async () => {
+    const wrapper = mount(FilePicker, {
+      props: { file: null, label: '选择文件', emptyLabel: '尚未选择文件' },
+    })
+    const input = wrapper.get('input[type="file"]')
+    Object.defineProperty(input.element, 'files', { value: [], configurable: true })
+
+    await input.trigger('change')
+
+    expect(wrapper.emitted('select')).toEqual([[null]])
+  })
+})
@@ -0,0 +1,58 @@
+<script setup lang="ts">
+import { useId } from 'vue'
+import { Upload } from '@element-plus/icons-vue'
+
+defineProps<{
+  file: File | null
+  label: string
+  emptyLabel: string
+  accept?: string
+  disabled?: boolean
+}>()
+
+const emit = defineEmits<{ select: [file: File | null] }>()
+const inputId = useId()
+
+function selectFile(event: Event) {
+  emit('select', (event.target as HTMLInputElement).files?.[0] ?? null)
+}
+
+function allowReselect(event: MouseEvent) {
+  ;(event.currentTarget as HTMLInputElement).value = ''
+}
+</script>
+
+<template>
+  <div class="file-picker" :class="{ disabled }">
+    <input
+      :id="inputId"
+      class="file-picker-input"
+      type="file"
+      :accept="accept"
+      :disabled="disabled"
+      @click="allowReselect"
+      @change="selectFile"
+    />
+    <label class="file-picker-trigger" :for="inputId">
+      <Upload aria-hidden="true" />
+      <span>{{ label }}</span>
+    </label>
+    <span class="file-picker-name" :class="{ empty: !file }" :title="file?.name || emptyLabel">
+      {{ file?.name || emptyLabel }}
+    </span>
+  </div>
+</template>
+
+<style scoped>
+.file-picker { display: flex; min-width: 0; align-items: center; gap: var(--space-sm); }
+.file-picker-input { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap; }
+.file-picker-trigger { display: inline-flex; min-height: 36px; flex: 0 0 auto; align-items: center; gap: var(--space-sm); padding: 0 var(--space-md); border: 1px solid var(--color-border-default); border-radius: var(--radius-md); background: var(--color-surface-primary); font-weight: 600; cursor: pointer; transition: border-color var(--motion-fast), background-color var(--motion-fast), color var(--motion-fast), box-shadow var(--motion-fast), transform var(--motion-fast); }
+.file-picker-trigger svg { width: 16px; height: 16px; }
+.file-picker-trigger:hover { border-color: var(--color-accent-secondary); background: var(--color-background-hover); color: var(--color-accent-primary); transform: translateY(-1px); }
+.file-picker-input:focus-visible + .file-picker-trigger { outline: 2px solid var(--color-border-focus); outline-offset: 2px; }
+.file-picker-name { min-width: 0; overflow: hidden; color: var(--color-text-secondary); text-overflow: ellipsis; white-space: nowrap; user-select: text; }
+.file-picker-name.empty { color: var(--color-text-tertiary); }
+.disabled { opacity: .55; }
+.disabled .file-picker-trigger { cursor: not-allowed; transform: none; }
+@media (max-width: 560px) { .file-picker { align-items: stretch; flex-direction: column; } .file-picker-trigger { justify-content: center; } }
+</style>