297 lines
8.6 KiB
Vue
297 lines
8.6 KiB
Vue
<template>
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<view :class="rootClass" :style="customStyle">
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<view v-if="label || $slots.label" class="wd-textarea__label" :style="labelStyle">
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<text v-if="isRequired && markerSide === 'before'" class="wd-textarea__required wd-textarea__required--left">*</text>
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<view v-if="prefixIcon || $slots.prefix" class="wd-textarea__prefix">
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<wd-icon v-if="prefixIcon && !$slots.prefix" custom-class="wd-textarea__icon" :name="prefixIcon" @click="onClickPrefixIcon" />
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<slot v-else name="prefix"></slot>
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</view>
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<view class="wd-textarea__label-inner">
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<text v-if="label && !$slots.label">{{ label }}</text>
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<slot v-else-if="$slots.label" name="label"></slot>
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</view>
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<text v-if="isRequired && markerSide === 'after'" class="wd-textarea__required">*</text>
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</view>
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<!-- 文本域 -->
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<view :class="`wd-textarea__value ${showClear ? 'is-suffix' : ''} ${customTextareaContainerClass} ${showWordCount ? 'is-show-limit' : ''}`">
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<textarea
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:class="`wd-textarea__inner ${customTextareaClass}`"
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v-model="inputValue"
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:show-count="false"
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:placeholder="placeholderValue"
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:disabled="disabled || readonly"
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:maxlength="maxlength"
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:focus="focused"
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:auto-focus="autoFocus"
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:placeholder-style="placeholderStyle"
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:placeholder-class="inputPlaceholderClass"
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:auto-height="autoHeight"
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:cursor-spacing="cursorSpacing"
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:fixed="fixed"
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:cursor="cursor"
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:show-confirm-bar="showConfirmBar"
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:selection-start="selectionStart"
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:selection-end="selectionEnd"
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:adjust-position="adjustPosition"
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:hold-keyboard="holdKeyboard"
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:confirm-type="confirmType"
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:confirm-hold="confirmHold"
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:disable-default-padding="disableDefaultPadding"
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:ignoreCompositionEvent="ignoreCompositionEvent"
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:inputmode="inputmode"
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@input="handleInput"
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@focus="handleFocus"
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@blur="handleBlur"
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@confirm="handleConfirm"
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@linechange="handleLineChange"
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@keyboardheightchange="handleKeyboardheightchange"
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/>
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<view v-if="errorMessage" class="wd-textarea__error-message">{{ errorMessage }}</view>
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<view v-if="props.readonly" class="wd-textarea__readonly-mask" />
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<view class="wd-textarea__suffix">
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<wd-icon v-if="showClear" custom-class="wd-textarea__clear" name="error-fill" @click="handleClear" />
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<view v-if="showWordCount" class="wd-textarea__count">
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<text :class="countClass">
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{{ currentLength }}
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</text>
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/{{ maxlength }}
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</view>
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</view>
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</view>
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</view>
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</template>
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<script lang="ts">
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export default {
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name: 'wd-textarea',
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options: {
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virtualHost: true,
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addGlobalClass: true,
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styleIsolation: 'shared'
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}
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}
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</script>
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<script lang="ts" setup>
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import { computed, onBeforeMount, ref, watch, useSlots, type Slots } from 'vue'
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import wdIcon from '../wd-icon/wd-icon.vue'
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import { objToStyle, isDef, pause } from '../common/util'
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import { useCell } from '../composables/useCell'
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import { FORM_KEY, type FormItemRule } from '../wd-form/types'
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import { useParent } from '../composables/useParent'
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import { useTranslate } from '../composables/useTranslate'
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import { textareaProps } from './types'
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interface TextareaSlots extends Slots {
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prefix?: () => any
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label?: () => any
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}
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const { translate } = useTranslate('textarea')
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const props = defineProps(textareaProps)
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const emit = defineEmits([
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'update:modelValue',
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'clear',
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'blur',
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'focus',
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'input',
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'keyboardheightchange',
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'confirm',
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'linechange',
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'clickprefixicon',
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'click'
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])
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const slots = useSlots() as TextareaSlots
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const placeholderValue = computed(() => {
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return isDef(props.placeholder) ? props.placeholder : translate('placeholder')
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})
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const clearing = ref<boolean>(false)
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const focused = ref<boolean>(false) // 控制聚焦
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const focusing = ref<boolean>(false) // 当前是否激活状态
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const inputValue = ref<string>('') // 输入框的值
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const cell = useCell()
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watch(
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() => props.focus,
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(newValue) => {
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focused.value = newValue
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},
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{ immediate: true, deep: true }
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)
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watch(
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() => props.modelValue,
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(newValue) => {
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inputValue.value = isDef(newValue) ? String(newValue) : ''
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},
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{ immediate: true, deep: true }
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)
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const { parent: form } = useParent(FORM_KEY)
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/**
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* 展示清空按钮
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*/
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const showClear = computed(() => {
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const { disabled, readonly, clearable, clearTrigger } = props
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if (clearable && !readonly && !disabled && inputValue.value && (clearTrigger === 'always' || (props.clearTrigger === 'focus' && focusing.value))) {
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return true
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} else {
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return false
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}
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})
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/**
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* 展示字数统计
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*/
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const showWordCount = computed(() => {
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const { disabled, readonly, maxlength, showWordLimit } = props
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return Boolean(!disabled && !readonly && isDef(maxlength) && maxlength > -1 && showWordLimit)
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})
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// 表单校验错误信息
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const errorMessage = computed(() => {
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if (form && props.prop && form.errorMessages && form.errorMessages[props.prop]) {
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return form.errorMessages[props.prop]
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} else {
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return ''
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}
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})
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// 是否展示必填
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const isRequired = computed(() => {
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let formRequired = false
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if (form && form.props.rules) {
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const rules = form.props.rules
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for (const key in rules) {
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if (Object.prototype.hasOwnProperty.call(rules, key) && key === props.prop && Array.isArray(rules[key])) {
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formRequired = rules[key].some((rule: FormItemRule) => rule.required)
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}
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}
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}
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return props.required || props.rules.some((rule) => rule.required) || formRequired
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})
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// 当前文本域文字长度
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const currentLength = computed(() => {
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/**
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* 使用Array.from处理多码元字符以获取正确的长度
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* @link https://github.com/Moonofweisheng/wot-design-uni/issues/933
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*/
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return Array.from(String(formatValue(props.modelValue))).length
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})
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const rootClass = computed(() => {
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return `wd-textarea ${props.label || slots.label ? 'is-cell' : ''} ${props.center ? 'is-center' : ''} ${cell.border.value ? 'is-border' : ''} ${
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props.size ? 'is-' + props.size : ''
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} ${props.error ? 'is-error' : ''} ${props.disabled ? 'is-disabled' : ''} ${props.autoHeight ? 'is-auto-height' : ''} ${
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currentLength.value > 0 ? 'is-not-empty' : ''
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} ${props.noBorder ? 'is-no-border' : ''} ${props.customClass}`
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})
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const labelClass = computed(() => {
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return `wd-textarea__label ${props.customLabelClass}`
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})
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const inputPlaceholderClass = computed(() => {
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return `wd-textarea__placeholder ${props.placeholderClass}`
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})
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const countClass = computed(() => {
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return `${currentLength.value > 0 ? 'wd-textarea__count-current' : ''} ${currentLength.value > props.maxlength ? 'is-error' : ''}`
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})
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const labelStyle = computed(() => {
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return props.labelWidth
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? objToStyle({
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'min-width': props.labelWidth,
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'max-width': props.labelWidth
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})
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: ''
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})
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onBeforeMount(() => {
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initState()
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})
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// 状态初始化
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function initState() {
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inputValue.value = formatValue(inputValue.value)
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emit('update:modelValue', inputValue.value)
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}
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function formatValue(value: string | number) {
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if (value === null || value === undefined) return ''
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const { maxlength, showWordLimit } = props
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if (showWordLimit && maxlength !== -1 && String(value).length > maxlength) {
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return value.toString().substring(0, maxlength)
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}
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return `${value}`
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}
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async function handleClear() {
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focusing.value = false
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inputValue.value = ''
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if (props.focusWhenClear) {
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clearing.value = true
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focused.value = false
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}
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await pause()
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if (props.focusWhenClear) {
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focused.value = true
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focusing.value = true
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}
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emit('update:modelValue', inputValue.value)
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emit('clear')
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}
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async function handleBlur({ detail }: any) {
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// 等待150毫秒，clear执行完毕
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await pause(150)
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if (clearing.value) {
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clearing.value = false
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return
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}
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focusing.value = false
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emit('blur', {
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value: inputValue.value,
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cursor: detail.cursor ? detail.cursor : null
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})
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}
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function handleFocus({ detail }: any) {
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focusing.value = true
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emit('focus', detail)
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}
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function handleInput({ detail }: any) {
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inputValue.value = formatValue(inputValue.value as string)
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emit('update:modelValue', inputValue.value)
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emit('input', detail)
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}
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function handleKeyboardheightchange({ detail }: any) {
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emit('keyboardheightchange', detail)
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}
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function handleConfirm({ detail }: any) {
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emit('confirm', detail)
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}
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function handleLineChange({ detail }: any) {
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emit('linechange', detail)
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}
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function onClickPrefixIcon() {
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emit('clickprefixicon')
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}
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</script>
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<style lang="scss" scoped>
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@import './index.scss';
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</style>
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<style lang="scss">
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@import './placeholder.scss';
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</style>
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