320 lines
9.1 KiB
Vue
320 lines
9.1 KiB
Vue
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<template>
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<view class="tn-input-class tn-input" :class="{
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'tn-input--border': border,
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'tn-input--error': validateState
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}" :style="{
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padding: `0 ${border ? 20 : 0}rpx`,
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borderColor: borderColor,
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textAlign: inputAlign
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}" @tap.stop="inputClick">
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<textarea v-if="type === 'textarea'" class="tn-input__input tn-input__textarea"
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style="width: 100%; height: 50px;" :value="defaultValue" :placeholder="placeholder"
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:placeholderStyle="placeholderStyle" :disabled="disabled || type === 'select'" :maxlength="maxLength"
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:fixed="fixed" :focus="focus" :autoHeight="autoHeight" :selectionStart="elSelectionStart"
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:selectionEnd="elSelectionEnd" :cursorSpacing="cursorSpacing" :showConfirmBar="showConfirmBar"
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@input="handleInput" @blur="handleBlur" @focus="onFocus" @confirm="onConfirm" />
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<input v-else class="tn-input__input" :type="type === 'password' ? 'text' : type"
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style="width: 100%; height: 50px;" :value="defaultValue" :password="type === 'password' && !showPassword"
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:placeholder="placeholder" :placeholderStyle="placeholderStyle" :disabled="disabled || type === 'select'"
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:maxlength="maxLength" :focus="focus" :confirmType="confirmType" :selectionStart="elSelectionStart"
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:selectionEnd="elSelectionEnd" :cursorSpacing="cursorSpacing" :showConfirmBar="showConfirmBar"
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@input="handleInput" @blur="handleBlur" @focus="onFocus" @confirm="onConfirm" />
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<!-- 右边的icon -->
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<view class="tn-input__right-icon tn-flex tn-flex-col-center">
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<!-- 清除按钮 -->
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<view v-if="clearable && value !== '' && focused"
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class="tn-input__right-icon__item tn-input__right-icon__clear" @tap="onClear">
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<view class="icon tn-icon-close"></view>
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</view>
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<view v-else-if="type === 'text' && !focused && showRightIcon && rightIcon !== ''"
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class="tn-input__right-icon__item tn-input__right-icon__clear">
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<view class="icon" :class="[`tn-icon-${rightIcon}`]"></view>
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</view>
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<!-- 显示密码按钮 -->
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<view v-if="passwordIcon && type === 'password'"
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class="tn-input__right-icon__item tn-input__right-icon__clear" @tap="showPassword = !showPassword">
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<view v-if="!showPassword" class="tn-icon-eye-hide"></view>
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<view v-else class="icon tn-icon-eye"></view>
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</view>
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<!-- 可选项箭头 -->
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<view v-if="type === 'select'" class="tn-input__right-icon__item tn-input__right-icon__select" :class="{
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'tn-input__right-icon__select--reverse': selectOpen
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}">
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<view class="icon tn-icon-up-triangle"></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>
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import Emitter from '../u-input/emitter.js'
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export default {
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mixins: [Emitter],
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name: 'tn-input',
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props: {
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value: {
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type: [String, Number],
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default: ''
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},
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// 输入框的类型
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type: {
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type: String,
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default: 'text'
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},
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// 输入框文字对齐方式
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inputAlign: {
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type: String,
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default: 'left'
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},
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// 文本框为空时显示的信息
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placeholder: {
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type: String,
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default: ''
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},
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placeholderStyle: {
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type: String,
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default: 'color: #AAAAAA'
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},
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// 是否禁用输入框
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disabled: {
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type: Boolean,
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default: false
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},
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// 可输入文字的最大长度
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maxLength: {
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type: Number,
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default: 255
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},
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// 输入框高度
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height: {
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type: Number,
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default: 0
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},
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// 根据内容自动调整高度
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autoHeight: {
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type: Boolean,
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default: true
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},
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// 键盘右下角显示的文字,仅在text时生效
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confirmType: {
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type: String,
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default: 'done'
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},
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// 输入框自定义样式
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customStyle: {
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type: Object,
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default () {
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return {}
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}
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},
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// 是否固定输入框
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fixed: {
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type: Boolean,
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default: false
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},
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// 是否自动获取焦点
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focus: {
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type: Boolean,
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default: false
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},
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// 当type为password时,是否显示右侧密码图标
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passwordIcon: {
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type: Boolean,
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default: true
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},
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// 当type为 input或者textarea时是否显示边框
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border: {
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type: Boolean,
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default: false
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},
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// 边框的颜色
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borderColor: {
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type: String,
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default: '#dcdfe6'
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},
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// 当type为select时,旋转右侧图标,标记当时select是打开还是关闭
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selectOpen: {
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type: Boolean,
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default: false
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},
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// 是否可清空
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clearable: {
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type: Boolean,
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default: true
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},
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// 光标与键盘的距离
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cursorSpacing: {
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type: Number,
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default: 0
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},
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// selectionStart和selectionEnd需要搭配使用,自动聚焦时生效
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// 光标起始位置
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selectionStart: {
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type: Number,
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default: -1
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},
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// 光标结束位置
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selectionEnd: {
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type: Number,
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default: -1
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},
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// 自动去除两端空格
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trim: {
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type: Boolean,
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default: true
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},
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// 是否显示键盘上方的完成按钮
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showConfirmBar: {
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type: Boolean,
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default: true
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},
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// 是否在输入框内最右边显示图标
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showRightIcon: {
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type: Boolean,
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default: false
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},
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// 最右边图标的名称
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rightIcon: {
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type: String,
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default: ''
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}
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},
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computed: {
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// 输入框样式
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inputStyle() {
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let style = {}
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// 如果没有设置高度,根据不同的类型设置一个默认值
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style.minHeight = this.height ? this.height + 'rpx' :
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this.type === 'textarea' ? this.textareaHeight + 'rpx' : this.inputHeight + 'rpx'
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style = Object.assign(style, this.customStyle)
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return style
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},
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// 光标起始位置
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elSelectionStart() {
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return String(this.selectionStart)
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},
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// 光标结束位置
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elSelectionEnd() {
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return String(this.selectionEnd)
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}
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},
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data() {
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return {
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// 默认值
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defaultValue: this.value,
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// 输入框高度
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inputHeight: 70,
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// textarea的高度
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textareaHeight: 100,
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// 标记验证的状态
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validateState: false,
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// 标记是否获取到焦点
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focused: false,
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// 是否预览密码
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showPassword: false,
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// 用于头条小程序,判断@input中,前后的值是否发生了变化,因为头条中文下,按下键没有输入内容,也会触发@input事件
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lastValue: '',
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}
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},
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watch: {
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value(newVal, oldVal) {
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this.defaultValue = newVal
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// 当值发生变化时,并且type为select时,不会触发input事件
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// 模拟input事件
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if (newVal !== oldVal && this.type === 'select') {
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this.handleInput({
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detail: {
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value: newVal
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}
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})
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}
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}
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},
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created() {
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// 监听form-item发出的错误事件,将输入框变成红色
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this.$on("on-form-item-error", this.onFormItemError)
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},
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methods: {
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/**
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* input事件
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*/
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handleInput(event) {
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let value = event.detail.value
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// 是否需要去掉空格
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if (this.trim) value = this.$tn.string.trim(value)
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// 原生事件
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this.$emit('input', value)
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// model赋值
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this.defaultValue = value
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// 过一个生命周期再发送事件给tn-form-item,否则this.$emit('input')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tn-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.$nextTick,否则在头条上,会造成混乱
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setTimeout(() => {
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// 头条小程序由于自身bug,导致中文下,每按下一个键(尚未完成输入),都会触发一次@input,导致错误,这里进行判断处理
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// #ifdef MP-TOUTIAO
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if (this.$tn.string.trim(value) === this.lastValue) return
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this.lastValue = value
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// #endif
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// 发送当前的值到form-item进行校验
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this.dispatch('tn-form-item', 'on-form-change', 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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*/
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handleBlur(event) {
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let value = event.detail.value
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// 由于点击清除图标也会触发blur事件,导致图标消失从而无法点击
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setTimeout(() => {
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this.focused = false
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}, 100)
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// 原生事件
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this.$emit('blur', value)
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// 过一个生命周期再发送事件给tn-form-item,否则this.$emit('blur')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tn-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.$nextTick,否则在头条上,会造成混乱
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setTimeout(() => {
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// 头条小程序由于自身bug,导致中文下,每按下一个键(尚未完成输入),都会触发一次@input,导致错误,这里进行判断处理
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// #ifdef MP-TOUTIAO
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if (this.$tn.string.trim(value) === this.lastValue) return
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this.lastValue = value
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// #endif
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// 发送当前的值到form-item进行校验
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this.dispatch('tn-form-item', 'on-form-blur', value)
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}, 40)
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},
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// 处理校验错误
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onFormItemError(status) {
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this.validateState = status
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},
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// 聚焦事件
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onFocus(event) {
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this.focused = true
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this.$emit('focus')
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},
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// 点击确认按钮事件
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onConfirm(event) {
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this.$emit('confirm', event.detail.value)
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},
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// 清除事件
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onClear(event) {
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this.$emit('input', '')
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},
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// 点击事件
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inputClick() {
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this.$emit('click')
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}
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}
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}
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</script>
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<style lang="less" scoped>
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</style>
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