antd-mini/es/Selector/index.js

antd-mini 是支付宝小程序 UI 组件库，遵循 Ant Design 规范。

import { __spreadArray } from "tslib";
import mixinValue from '../mixins/value';
import { Component, getValueFromProps, triggerEventValues, } from '../_util/simply';
import { SelectorDefaultProps } from './props';
Component({
    props: SelectorDefaultProps,
    methods: {
        onChange: function (e) {
            var _a = e.currentTarget.dataset, disabled = _a.disabled, value = _a.value;
            var _b = getValueFromProps(this, [
                'multiple',
                'options',
                'maxSelectedCount',
                'minSelectedCount',
                'disabled',
            ]), multiple = _b[0], options = _b[1], maxSelectedCount = _b[2], minSelectedCount = _b[3], disabledFromProps = _b[4];
            if (disabled || disabledFromProps) {
                return;
            }
            if (multiple) {
                var currentValue_1 = this.getValue() || [];
                if (currentValue_1.indexOf(value) > -1) {
                    if (typeof minSelectedCount === 'number' &&
                        currentValue_1.length <= minSelectedCount) {
                        triggerEventValues(this, 'selectMin', [value, options.find(function (v) { return v.value === value; })], e);
                        return;
                    }
                    currentValue_1 = currentValue_1.filter(function (v) { return v !== value; });
                }
                else {
                    if (typeof maxSelectedCount === 'number' &&
                        currentValue_1.length >= maxSelectedCount) {
                        triggerEventValues(this, 'selectMax', [value, options.find(function (v) { return v.value === value; })], e);
                        return;
                    }
                    currentValue_1 = __spreadArray(__spreadArray([], currentValue_1, true), [value], false);
                }
                if (!this.isControlled()) {
                    this.update(currentValue_1);
                }
                triggerEventValues(this, 'change', [
                    currentValue_1,
                    options.filter(function (v) { return currentValue_1.indexOf(v.value) > -1; }),
                ], e);
            }
            else {
                if (value === this.getValue()) {
                    if (minSelectedCount === 1) {
                        triggerEventValues(this, 'selectMin', [value, options.find(function (v) { return v.value === value; })], e);
                        return;
                    }
                    if (!this.isControlled()) {
                        this.update(undefined);
                    }
                    triggerEventValues(this, 'change', [undefined, undefined], e);
                }
                else {
                    if (!this.isControlled()) {
                        this.update(value);
                    }
                    triggerEventValues(this, 'change', [value, options.find(function (v) { return v.value === value; })], e);
                }
            }
        },
    },
    mixins: [mixinValue()],
});