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- <template>
- <view
- class="u-input"
- :class="{
- 'u-input--border': border,
- 'u-input--error': validateState
- }"
- :style="{
- padding: `0 ${border ? 20 : 0}rpx`,
- borderColor: borderColor,
- textAlign: inputAlign
- }"
- @tap.stop="inputClick"
- >
- <textarea
- v-if="type == 'textarea'"
- class="u-input__input u-input__textarea"
- :style="[getStyle]"
- :value="value"
- :placeholder="placeholder"
- :placeholderStyle="placeholderStyle"
- :disabled="disabled"
- :maxlength="inputMaxlength"
- :fixed="fixed"
- :focus="focus"
- :autoHeight="autoHeight"
- @input="handleInput"
- @blur="handleBlur"
- @focus="onFocus"
- @confirm="onConfirm"
- />
- <input
- v-else
- class="u-input__input"
- :type="type == 'password' ? 'text' : type"
- :style="[getStyle]"
- :value="defaultValue"
- :password="type == 'password' && !showPassword"
- :placeholder="placeholder"
- :placeholderStyle="placeholderStyle"
- :disabled="disabled || type === 'select'"
- :maxlength="inputMaxlength"
- :focus="focus"
- :confirmType="confirmType"
- :cursor-spacing="getCursorSpacing"
- @focus="onFocus"
- @blur="handleBlur"
- @input="handleInput"
- @confirm="onConfirm"
- />
- <view class="u-input__right-icon u-flex">
- <view class="u-input__right-icon__clear u-input__right-icon__item" v-if="clearable && value != '' && focused">
- <u-icon size="32" name="close-circle-fill" color="#c0c4cc" @touchstart="onClear"/>
- </view>
- <view class="u-input__right-icon__clear u-input__right-icon__item" v-if="passwordIcon && type == 'password'">
- <u-icon size="32" :name="!showPassword ? 'eye' : 'eye-fill'" color="#c0c4cc" @click="showPassword = !showPassword"/>
- </view>
- <view class="u-input__right-icon--select u-input__right-icon__item" v-if="type == 'select'" :class="{
- 'u-input__right-icon--select--reverse': selectOpen
- }">
- <u-icon name="arrow-down-fill" size="26" color="#c0c4cc"></u-icon>
- </view>
- </view>
- </view>
- </template>
-
- <script>
- import Emitter from '../../libs/util/emitter.js';
-
- /**
- * input 输入框
- * @description 此组件为一个输入框,默认没有边框和样式,是专门为配合表单组件u-form而设计的,利用它可以快速实现表单验证,输入内容,下拉选择等功能。
- * @tutorial http://uviewui.com/components/input.html
- * @property {String} type 模式选择,见官网说明
- * @property {Boolean} clearable 是否显示右侧的清除图标(默认true)
- * @property {} v-model 用于双向绑定输入框的值
- * @property {String} input-align 输入框文字的对齐方式(默认left)
- * @property {String} placeholder placeholder显示值(默认 '请输入内容')
- * @property {Boolean} disabled 是否禁用输入框(默认false)
- * @property {String Number} maxlength 输入框的最大可输入长度(默认140)
- * @property {String Number} cursor-spacing 指定光标与键盘的距离,单位px(默认0)
- * @property {String} placeholderStyle placeholder的样式,字符串形式,如"color: red;"(默认 "color: #c0c4cc;")
- * @property {String} confirm-type 设置键盘右下角按钮的文字,仅在type为text时生效(默认done)
- * @property {Object} custom-style 自定义输入框的样式,对象形式
- * @property {Boolean} focus 是否自动获得焦点(默认false)
- * @property {Boolean} fixed 如果type为textarea,且在一个"position:fixed"的区域,需要指明为true(默认false)
- * @property {Boolean} password-icon type为password时,是否显示右侧的密码查看图标(默认true)
- * @property {Boolean} border 是否显示边框(默认false)
- * @property {String} border-color 输入框的边框颜色(默认#dcdfe6)
- * @property {Boolean} auto-height 是否自动增高输入区域,type为textarea时有效(默认true)
- * @property {String Number} height 高度,单位rpx(text类型时为70,textarea时为100)
- * @example <u-input v-model="value" :type="type" :border="border" />
- */
- export default {
- name: 'u-input',
- mixins: [Emitter],
- props: {
- value: {
- type: [String, Number],
- default: ''
- },
- // 输入框的类型,textarea,text,number
- type: {
- type: String,
- default: 'text'
- },
- inputAlign: {
- type: String,
- default: 'left'
- },
- placeholder: {
- type: String,
- default: '请输入内容'
- },
- disabled: {
- type: Boolean,
- default: false
- },
- maxlength: {
- type: [Number, String],
- default: 140
- },
- placeholderStyle: {
- type: String,
- default: 'color: #c0c4cc;'
- },
- confirmType: {
- type: String,
- default: 'done'
- },
- // 输入框的自定义样式
- customStyle: {
- type: Object,
- default() {
- return {};
- }
- },
- // 如果 textarea 是在一个 position:fixed 的区域,需要显示指定属性 fixed 为 true
- fixed: {
- type: Boolean,
- default: false
- },
- // 是否自动获得焦点
- focus: {
- type: Boolean,
- default: false
- },
- // 密码类型时,是否显示右侧的密码图标
- passwordIcon: {
- type: Boolean,
- default: true
- },
- // input|textarea是否显示边框
- border: {
- type: Boolean,
- default: false
- },
- // 输入框的边框颜色
- borderColor: {
- type: String,
- default: '#dcdfe6'
- },
- autoHeight: {
- type: Boolean,
- default: true
- },
- // type=select时,旋转右侧的图标,标识当前处于打开还是关闭select的状态
- // open-打开,close-关闭
- selectOpen: {
- type: Boolean,
- default: false
- },
- // 高度,单位rpx
- height: {
- type: [Number, String],
- default: ''
- },
- // 是否可清空
- clearable: {
- type: Boolean,
- default: true
- },
- // 指定光标与键盘的距离,单位 px
- cursorSpacing: {
- type: [Number, String],
- default: 0
- }
- },
- data() {
- return {
- defaultValue: this.value,
- inputHeight: 70, // input的高度
- textareaHeight: 100, // textarea的高度
- validateState: false, // 当前input的验证状态,用于错误时,边框是否改为红色
- focused: false, // 当前是否处于获得焦点的状态
- showPassword: false, // 是否预览密码
- };
- },
- watch: {
- value(nVal, oVal) {
- this.defaultValue = nVal;
- // 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
- if(nVal != oVal && this.type == 'select') this.handleInput({
- detail: {
- value: nVal
- }
- })
- },
- },
- computed: {
- // 因为uniapp的input组件的maxlength组件必须要数值,这里转为数值,给用户可以传入字符串数值
- inputMaxlength() {
- return Number(this.maxlength);
- },
- getStyle() {
- let style = {};
- // 如果没有自定义高度,就根据type为input还是textare来分配一个默认的高度
- style.minHeight = this.height ? this.height + 'rpx' : this.type == 'textarea' ?
- this.textareaHeight + 'rpx' : this.inputHeight + 'rpx';
- style = Object.assign(style, this.customStyle);
- return style;
- },
- //
- getCursorSpacing() {
- return Number(this.cursorSpacing);
- }
- },
- created() {
- // 监听u-form-item发出的错误事件,将输入框边框变红色
- this.$on('on-form-item-error', this.onFormItemError);
- },
- methods: {
- /**
- * change 事件
- * @param event
- */
- handleInput(event) {
- // 当前model 赋值
- this.defaultValue = event.detail.value;
- // vue 原生的方法 return 出去
- this.$emit('input', event.detail.value);
- // 过一个生命周期再发送事件给u-form-item,否则this.$emit('input')更新了父组件的值,但是微信小程序上
- // 尚未更新到u-form-item,导致获取的值为空,从而校验混论
- this.$nextTick(() => {
- // 将当前的值发送到 u-form-item 进行校验
- this.dispatch('u-form-item', 'on-form-change', event.detail.value);
- });
- },
- /**
- * blur 事件
- * @param event
- */
- handleBlur(event) {
- this.focused = false;
- // vue 原生的方法 return 出去
- this.$emit('blur', event.detail.value);
- this.$nextTick(() => {
- // 将当前的值发送到 u-form-item 进行校验
- this.dispatch('u-form-item', 'on-form-blur', event.detail.value);
- });
- },
- onFormItemError(status) {
- this.validateState = status;
- },
- onFocus(event) {
- this.focused = true;
- this.$emit('focus');
- },
- onConfirm(e) {
- this.$emit('confirm', e.detail.value);
- },
- onClear(event) {
- this.$emit('input', '');
- },
- inputClick() {
- this.$emit('click');
- }
- }
- };
- </script>
-
- <style lang="scss" scoped>
- .u-input {
- position: relative;
- flex: 1;
- display: flex;
-
- &__input {
- //height: $u-form-item-height;
- font-size: 28rpx;
- color: $u-main-color;
- flex: 1;
- }
-
- &__textarea {
- width: auto;
- font-size: 28rpx;
- color: $u-main-color;
- padding: 10rpx 0;
- line-height: normal;
- flex: 1;
- }
-
- &--border {
- border-radius: 6rpx;
- border-radius: 4px;
- border: 1px solid $u-form-item-border-color;
- }
-
- &--error {
- border-color: $u-type-error!important;
- }
-
- &__right-icon {
-
- &__item {
- margin-left: 10rpx;
- }
-
- &--select {
- transition: transform .4s;
-
- &--reverse {
- transform: rotate(-180deg);
- }
- }
- }
- }
- </style>
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