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| /**
| * CFilterSelect - 筛选项目，单项选择
| * @author Tevin
| */
|
| <template>
| <view
| class="c-filter-select"
| :class="'type-'+place"
| >
| <view
| class="label"
| v-if="place==='item'"
| >{{label}}</view>
| <picker
| mode="selector"
| range-key="name"
| :range="options2"
| :value="current"
| @change="evt => handleChange(evt.detail.value)"
| >
| <view class="content">
| <view
| class="label"
| v-if="place==='bar'"
| >{{label}}</view>
| <view :class="selected?'filled':'empty'">
| {{selected ? options2[current].name : ('请选择' + label)}}
| </view>
| <view class="at-icon at-icon-chevron-down" />
| </view>
| </picker>
| </view>
| </template>
|
| <script>
| import Taro from '@tarojs/taro';
| import './cFilterSelect.scss';
|
| export default {
| name: 'CFilterSelect',
| props: {
| // 位置类型，bar、item
| place: String,
| // 项名称
| label: String,
| // 项键名
| name: String,
| // 选项
| options: {
| type: Array,
| default: () => [],
| },
| // 是否额外显示【取消选择】的项
| cancelable: {
| type: Boolean,
| default: true,
| },
| // 项值
| value: [Number, String],
| // 变化回调
| onChange: Function,
| },
| data() {
| return {};
| },
| computed: {
| options2() {
| if (this.cancelable) {
| return [{ name: '- 取消选择 -' }, ...this.options];
| } else {
| return [...this.options];
| }
| },
| current() {
| for (let i = 0, item; (item = this.options2[i]); i++) {
| if (this.value === item.value) {
| return i;
| }
| }
| return 0;
| },
| selected() {
| if (typeof this.value === 'undefined') {
| return false;
| }
| for (let item of this.options) {
| if (this.value === item.value) {
| return true;
| }
| }
| return false;
| },
| },
| methods: {
| handleChange(index) {
| const selectIndex = Number(index);
| const selectItem = this.options2[selectIndex];
| const changed = {
| place: this.place,
| name: this.name,
| value: undefined,
| };
| if (selectItem.value || selectItem.value === 0) {
| changed.value = selectItem.value;
| } else if (selectItem.id) {
| changed.value = selectItem.id;
| }
| // 显示取消项时
| if (this.cancelable) {
| if (selectIndex > 0) {
| this.onChange(changed);
| } else {
| changed.value = undefined;
| this.onChange(changed);
| }
| }
| // 正常显示时
| else {
| this.onChange(changed);
| }
| },
| },
| };
| </script>
|
|
