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| /**
| * CForm
| * @author Tevin
| */
|
| <template>
| <form
| class="c-form"
| @submit="evt=>handleSubmit()"
| >
| <slot :formRes="formRes" />
| </form>
| </template>
|
| <script>
| import Taro from '@tarojs/taro';
| import './cForm.scss';
|
| export default {
| name: 'CForm',
| props: {
| formData: Object,
| onChange: Function,
| onFinish: Function,
| },
| data() {
| return {
| formRes: {
| formData: this.formData,
| },
| validators: {},
| };
| },
| methods: {
| handleSubmit() {
| const checklist = [];
| // 所有项验证
| Object.keys(this.validators).forEach(key => {
| // 仍有效的验证器
| if (this.validators[key]) {
| checklist.push(this.validators[key]());
| }
| });
| Promise.all(checklist).then(validations => {
| for (let validation of validations) {
| // 第一个不通过项提示
| if (!validation.passed) {
| Taro.showToast({
| title: validation.msg,
| icon: 'none',
| mask: false,
| duration: 2000,
| });
| return;
| }
| }
| // 所有检查通过
| this.onFinish && this.onFinish();
| });
| },
| preCheckValidators(keys, callback) {
| const checklist = [];
| // 从选定的项中验证
| keys.forEach(key => {
| // 效的验证器
| if (this.validators[key]) {
| checklist.push(this.validators[key]('msgOnly'));
| }
| });
| Promise.all(checklist).then(validations => {
| for (let validation of validations) {
| // 第一个不通过项提示
| if (!validation.passed) {
| Taro.showToast({
| title: validation.msg,
| icon: 'none',
| mask: false,
| duration: 2000,
| });
| // 检查失败
| callback && callback(false);
| return;
| }
| }
| // 所有检查通过
| callback && callback(true);
| });
| },
| },
| mounted() {
| // 当表单项变化时
| this.formRes.$handleChange = (evt = []) => {
| Object.keys(evt).forEach(key => {
| // 直接改值
| if (typeof this.formRes.formData[key] === 'undefined') {
| this.$set(this.formRes.formData, key, evt[key]);
| } else {
| this.formRes.formData[key] = evt[key];
| }
| });
| this.onChange && this.onChange(evt);
| };
| // 注册表单验证器
| this.formRes.$regItemValidator = (name, cb) => {
| this.validators[name] = cb;
| };
| },
| beforeDestroy() {
| this.validators = {};
| },
| };
| </script>
|
|
