<template>
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<view
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class="u-input"
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:class="[
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{
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'u-input--border': border,
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'u-input--error': validateState
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},
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customClass
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]"
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:style="{
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padding: type === 'textarea' ? (border ? '20rpx' : '0') : `0 ${border ? 20 : 0}rpx`,
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borderColor: borderColor,
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textAlign: inputAlign
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}"
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@tap.stop="inputClick"
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>
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<textarea
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v-if="type == 'textarea'"
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class="u-input__input u-input__textarea"
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:style="getStyle"
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:value="defaultValue"
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:placeholder="placeholder"
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:placeholderStyle="placeholderStyle"
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:disabled="disabled"
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:maxlength="inputMaxlength"
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:fixed="fixed"
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:focus="focus"
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:autoHeight="autoHeight"
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:selection-end="uSelectionEnd"
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:selection-start="uSelectionStart"
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:cursor-spacing="getCursorSpacing"
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:show-confirm-bar="showConfirmbar"
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:adjust-position="adjustPosition"
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@input="handleInput"
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@blur="handleBlur"
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@focus="onFocus"
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@confirm="onConfirm"
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/>
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<input
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v-else
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class="u-input__input"
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:type="type == 'password' ? 'text' : type"
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:style="getStyle"
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:value="defaultValue"
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:password="type == 'password' && !showPassword"
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:placeholder="placeholder"
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:placeholderStyle="placeholderStyle"
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:disabled="disabled || type === 'select'"
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:maxlength="inputMaxlength"
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:focus="focus"
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:confirmType="confirmType"
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:cursor-spacing="getCursorSpacing"
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:selection-end="uSelectionEnd"
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:selection-start="uSelectionStart"
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:show-confirm-bar="showConfirmbar"
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:adjust-position="adjustPosition"
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@focus="onFocus"
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@blur="handleBlur"
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@input="handleInput"
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@confirm="onConfirm"
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/>
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<view class="u-input__right-icon u-flex">
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<view
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class="u-input__right-icon__clear u-input__right-icon__item"
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v-if="clearable && modelValue != '' && !disabled"
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>
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<u-icon size="32" name="close-circle-fill" color="var(--u-light-color)" @click="onClear" />
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</view>
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<view
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class="u-input__right-icon__clear u-input__right-icon__item"
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v-if="passwordIcon && type == 'password'"
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>
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<u-icon
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size="32"
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:name="!showPassword ? 'eye' : 'eye-fill'"
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color="var(--u-light-color)"
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@click="showPassword = !showPassword"
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/>
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</view>
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<view
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class="u-input__right-icon--select u-input__right-icon__item"
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v-if="type == 'select'"
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:class="{
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'u-input__right-icon--select--reverse': selectOpen
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}"
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>
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<u-icon name="arrow-down-fill" size="26" color="var(--u-light-color)"></u-icon>
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</view>
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</view>
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<text
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class="u-input__count"
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:style="{
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'background-color': props.disabled ? 'transparent' : 'var(--u-bg-white)'
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}"
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v-if="props.type === 'textarea' && props.count"
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>
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{{ String(defaultValue).length }}/{{ props.maxlength }}
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</text>
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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: 'u-input',
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options: {
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addGlobalClass: true,
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// #ifndef MP-TOUTIAO
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virtualHost: true,
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// #endif
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styleIsolation: 'shared'
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}
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};
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</script>
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<script setup lang="ts">
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import { ref, computed, watch } from 'vue';
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import { $u, useChildren } from '../..';
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import { InputProps } from './types';
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const props = defineProps(InputProps);
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const emit = defineEmits(['update:modelValue', 'input', 'blur', 'focus', 'confirm', 'click']);
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const { emitToParent } = useChildren('u-input', 'u-form-item');
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const defaultValue = ref(props.modelValue);
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const inputHeight = 70; // input的高度
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const textareaHeight = 100; // textarea的高度
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const validateState = ref(props.validateState); // 当前input的验证状态，用于错误时，边框是否改为红色
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const focused = ref(false); // 当前是否处于获得焦点的状态
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const showPassword = ref(false); // 是否预览密码
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const lastValue = ref(''); // 用于头条小程序，判断@input中，前后的值是否发生了变化
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// 监听 value 变化
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watch(
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() => props.modelValue,
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(nVal, oVal) => {
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defaultValue.value = nVal;
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// 当值发生变化，且为select类型时(此时input被设置为disabled，不会触发@input事件)，模拟触发@input事件
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if (nVal != oVal && props.type == 'select') handleInput({ detail: { value: nVal } });
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}
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);
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// 监听 validateState 变化
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watch(
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() => props.validateState,
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val => {
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validateState.value = val;
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}
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);
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// 计算属性
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const inputMaxlength = computed(() => Number(props.maxlength));
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const getStyle = computed(() => {
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let style: Record<string, any> = {};
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// 如果没有自定义高度，就根据type为input还是textarea来分配一个默认的高度
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style.minHeight = props.height
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? props.height + 'rpx'
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: props.type == 'textarea'
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? `${textareaHeight}rpx`
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: `${inputHeight}rpx`;
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return $u.toStyle(style, props.customStyle);
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});
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const getCursorSpacing = computed(() => Number(props.cursorSpacing));
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// 光标起始位置
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const uSelectionStart = computed(() => String(props.selectionStart));
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// 光标结束位置
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const uSelectionEnd = computed(() => String(props.selectionEnd));
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/**
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* change 事件
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* @param event
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*/
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function handleInput(event: any) {
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let value = event.detail.value;
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// 判断是否去除空格
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if (props.trim) value = $u.trim(value);
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// 当前model 赋值
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defaultValue.value = value;
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emit('update:modelValue', value);
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emit('input', value);
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// 过一个生命周期再发送事件给u-form-item，否则this.$emit('update:modelValue')更新了父组件的值，但是微信小程序上
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// 尚未更新到u-form-item，导致获取的值为空，从而校验混论
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// 这里不能延时时间太短，或者使用this.$nextTick，否则在头条上，会造成混乱
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setTimeout(() => {
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// 头条小程序由于自身bug，导致中文下，每按下一个键(尚未完成输入)，都会触发一次@input，导致错误，这里进行判断处理
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// #ifdef MP-TOUTIAO
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if ($u.trim(value) == lastValue.value) return;
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lastValue.value = value;
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// #endif
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// 通过 emitter 派发事件
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emitToParent('onFormChange', value);
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}, 40);
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}
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/**
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* blur 事件
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* @param event
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*/
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function handleBlur(event: any) {
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// 最开始使用的是监听图标@touchstart事件，自从hx2.8.4后，此方法在微信小程序出错
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// 这里改为监听点击事件，手点击清除图标时，同时也发生了@blur事件，导致图标消失而无法点击，这里做一个延时
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setTimeout(() => {
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focused.value = false;
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}, 100);
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setTimeout(() => {
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let value = String(defaultValue.value);
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emit('blur', value);
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// 头条小程序由于自身bug，导致中文下，每按下一个键(尚未完成输入)，都会触发一次@input，导致错误，这里进行判断处理
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// #ifdef MP-TOUTIAO
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if ($u.trim(value) == lastValue.value) return;
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lastValue.value = value;
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// #endif
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emitToParent('onFormBlur', value);
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}, 40);
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}
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function onFormItemError(status: boolean) {
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validateState.value = status;
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}
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function onFocus(e: any) {
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focused.value = true;
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emit('focus', e.detail.value);
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}
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function onConfirm(e: any) {
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emit('confirm', e.detail.value);
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}
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function onClear(event: any) {
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try {
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event.stopPropagation();
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} catch (e) {
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console.log(e);
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}
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handleInput({ detail: { value: '' } });
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}
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function inputClick() {
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emit('click');
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}
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defineExpose({
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onFormItemError
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});
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</script>
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<style lang="scss" scoped>
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@import '../../libs/css/style.components.scss';
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.u-input {
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position: relative;
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flex: 1;
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@include vue-flex;
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&__input {
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//height: 70rpx;
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font-size: 28rpx;
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color: $u-main-color;
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flex: 1;
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}
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&__textarea {
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width: auto;
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font-size: 28rpx;
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color: $u-main-color;
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// padding: 10rpx 0;
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line-height: normal;
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flex: 1;
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}
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&__count {
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position: absolute;
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right: 1px;
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bottom: 0;
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font-size: 12px;
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color: $u-tips-color;
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background-color: var(--u-bg-white);
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padding: 1px 4px;
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border-radius: 10px;
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line-height: 16px;
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}
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&--border {
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border-radius: 4px;
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border: 1px solid $u-border-color;
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}
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&--error {
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border-color: $u-type-error !important;
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}
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&__right-icon {
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&__item {
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margin-left: 10rpx;
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}
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&--select {
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transition: transform 0.4s;
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&--reverse {
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transform: rotate(-180deg);
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}
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}
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}
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}
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</style>
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