malio-layer-ui/app/components/malio/input/InputUpload.vue

<template>
  <div>
    <div
      :class="mergedGroupClass"
    >
      <input
        ref="fileInputRef"
        type="file"
        :accept="accept"
        class="hidden"
        :disabled="disabled"
        :required="required"
        @change="onFileChange"
      >

      <input
        :id="inputId"
        :class="mergedInputClass"
        :disabled="disabled"
        :value="currentDisplayValue"
        :readonly="true"
        :aria-invalid="!!error"
        :aria-required="required || undefined"
        :aria-describedby="describedBy"
        v-bind="attrs"
        placeholder="_"
        type="text"
        @click="openFilePicker"
        @keydown.enter.prevent="openFilePicker"
        @keydown.space.prevent="openFilePicker"
        @focus="isFocused = true; onKbdFocus()"
        @blur="isFocused = false; onKbdBlur()"
      >

      <label
        v-if="label"
        :for="inputId"
        :class="mergedLabelClass"
      >
        {{ label }}<MalioRequiredMark v-if="required" />
      </label>

      <div
        v-if="displayIcon || showClear"
        class="absolute right-[10px] top-1/2 flex -translate-y-1/2 items-center gap-1"
      >
        <button
          v-if="showClear"
          type="button"
          data-test="clear"
          class="m-focus-ring rounded-malio text-m-muted hover:text-m-primary"
          aria-label="Retirer le fichier"
          @click.stop="onClear"
        >
          <IconifyIcon
            icon="mdi:close"
            :width="16"
            :height="16"
          />
        </button>
        <IconifyIcon
          v-if="displayIcon"
          icon="mdi:cloud-arrow-up-outline"
          :width="24"
          :height="24"
          data-test="icon"
          :class="[iconStateClass, 'pointer-events-none']"
        />
      </div>

    </div>
    <p
      v-if="reserveMessageSpace || hint || error || success"
      :id="`${inputId}-describedby`"
      :class="[
          hasError
            ? 'text-m-danger'
            : hasSuccess
              ? 'text-m-success'
              : 'text-m-muted',
          'mt-1 text-xs ml-[2px]',
          reserveMessageSpace ? 'min-h-[1rem]' : '',
        ]"
    >
      {{ hint || error || success }}
    </p>
  </div>
</template>

<script setup lang="ts">

import {computed, ref, useAttrs, useId} from 'vue'
import { Icon as IconifyIcon } from '@iconify/vue'
import {twMerge} from 'tailwind-merge'
import MalioRequiredMark from '../shared/RequiredMark.vue'
import {useKbdFocusRing} from '../shared/useKbdFocusRing'

defineOptions({name: 'MalioInputUpload', inheritAttrs: false})

const {keyboardFocused, onFocus: onKbdFocus, onBlur: onKbdBlur} = useKbdFocusRing()

const props = withDefaults(
  defineProps<{
    id?: string
    label?: string
    modelValue?: string | null | undefined
    inputClass?: string
    labelClass?: string
    groupClass?: string
    disabled?: boolean
    readonly?: boolean
    hint?: string
    error?: string
    success?: string
    displayIcon?: boolean
    accept?: string
    required?: boolean
    clearable?: boolean
    reserveMessageSpace?: boolean
  }>(),
  {
    id: '',
    modelValue: undefined,
    label: '',
    inputClass: '',
    labelClass: '',
    groupClass: '',
    disabled: false,
    readonly: false,
    hint: '',
    error: '',
    success: '',
    displayIcon: true,
    accept: '',
    required: false,
    clearable: false,
    reserveMessageSpace: true,
  },
)

const attrs = useAttrs()
const generatedId = useId()
const localValue = ref('')
const isFocused = ref(false)
const fileInputRef = ref<HTMLInputElement | null>(null)

const inputId = computed(() => props.id?.toString() || `malio-input-upload-${generatedId}`)
const isControlled = computed(() => props.modelValue !== undefined)
const currentDisplayValue = computed(() => (isControlled.value ? (props.modelValue ?? '') : localValue.value))
const hasError = computed(() => !!props.error)
const hasSuccess = computed(() => !!props.success)
const isFilled = computed(() => currentDisplayValue.value.trim().length > 0)
const disabled = computed(() => props.disabled)
const isReadonly = computed(() => props.readonly && !props.disabled)
const shouldFloatLabel = computed(() =>
  isReadonly.value
    ? isFilled.value
    : isFocused.value || currentDisplayValue.value.length > 0,
)
const mergedGroupClass = computed(() =>
  twMerge(
    'relative flex h-12 w-full items-center',
    props.groupClass,
  ),
)
const mergedInputClass = computed(() =>
  twMerge(
    'floating-input peer min-h-[40px] w-full border bg-white pl-3 pr-3 py-1 outline-none placeholder:text-transparent text-lg rounded-md cursor-pointer',
    keyboardFocused.value ? 'm-focus-ring-kbd' : '',
    isReadonly.value ? '' : 'grow-height',
    isReadonly.value
      ? 'border-black'
      : isFilled.value ? 'border-black' : 'border-m-muted',
    disabled.value ? 'text-black/60 [&:not(:placeholder-shown)]:border-m-muted border-m-muted' : '',
    hasError.value
      ? 'border-m-danger focus:border-m-danger [&:not(:placeholder-shown)]:border-m-danger'
      : hasSuccess.value
        ? 'border-m-success focus:border-m-success [&:not(:placeholder-shown)]:border-m-success'
        : isReadonly.value ? '' : 'focus:border-m-primary',
    showClear.value
      ? (props.displayIcon ? '!pr-16' : '!pr-10')
      : (props.displayIcon ? '!pr-10' : ''),
    isReadonly.value ? '' : 'focus:pl-[11px]',
    isReadonly.value ? 'cursor-default' : '',
    disabled.value ? 'cursor-not-allowed' : '',
    props.inputClass,
  ),
)
const mergedLabelClass = computed(() =>
  twMerge(
    'floating-label absolute top-2 mt-[5px] inline-block origin-left transition-transform duration-150 font-medium text-sm',
    'left-3',
    shouldFloatLabel.value
      ? `-translate-y-[1.25rem] scale-90${isReadonly.value ? '' : ' peer-focus:-translate-y-[1.55rem]'}`
      : '',
    hasError.value
      ? 'text-m-danger'
      : hasSuccess.value
        ? 'text-m-success'
        : disabled.value
          ? 'text-m-muted'
          : isReadonly.value
            ? isFilled.value ? 'text-black' : 'text-m-muted'
            : 'peer-placeholder-shown:text-m-muted peer-[&:not(:placeholder-shown):not(:focus)]:text-black peer-focus:text-m-primary',
    props.labelClass,
  ),
)

const describedBy = computed(() => {
  const ids: string[] = []
  if (props.hint && !hasSuccess.value && !hasError.value) ids.push(`${inputId.value}-hint`)
  if (hasError.value) ids.push(`${inputId.value}-error`)
  if (hasSuccess.value && !hasError.value) ids.push(`${inputId.value}-success`)
  return ids.length ? ids.join(' ') : undefined
})

const emit = defineEmits<{
  (event: 'update:modelValue', value: string): void
  (event: 'file-selected', file: File): void
  (event: 'clear'): void
}>()

const showClear = computed(() =>
  props.clearable && isFilled.value && !props.disabled && !isReadonly.value,
)

const onClear = () => {
  if (props.disabled || isReadonly.value) return
  if (!isControlled.value) localValue.value = ''
  if (fileInputRef.value) fileInputRef.value.value = ''
  emit('update:modelValue', '')
  emit('clear')
}

const openFilePicker = () => {
  if (props.disabled || props.readonly) return
  fileInputRef.value?.click()
}

const onFileChange = (event: Event) => {
  const target = event.target as HTMLInputElement
  const file = target.files?.[0]
  if (file) {
    const fileName = file.name
    if (!isControlled.value) {
      localValue.value = fileName
    }
    emit('update:modelValue', fileName)
    emit('file-selected', file)
  }
}

const iconStateClass = computed(() => {
  if (hasError.value) return 'text-m-danger'
  if (hasSuccess.value) return 'text-m-success'
  if (disabled.value) return 'text-m-muted'
  if (isReadonly.value) return isFilled.value ? 'text-black' : 'text-m-muted'
  if (isFocused.value) return 'text-m-primary'
  if (isFilled.value) return 'text-black'
  return 'text-m-muted'
})
</script>

<style scoped>
.floating-label {
  background: white;
  padding: 0 0.25rem;
}

.grow-height {
  transition: border-color 160ms ease, box-shadow 160ms ease, padding-top 160ms ease, padding-bottom 160ms ease;
}

.grow-height:focus {
  padding-top: 0.625rem;
  padding-bottom: 0.625rem;
}
@media (prefers-reduced-motion: reduce) {
  .grow-height { transition: none; }
}
</style>