140 lines
3.3 KiB
JavaScript
140 lines
3.3 KiB
JavaScript
import Modifier from 'ember-modifier';
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import { action } from '@ember/object';
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class ValidationError extends Error {}
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export default class ValidateModifier extends Modifier {
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item = null;
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hash = null;
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validate(value, validations = {}) {
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if(Object.keys(validations).length === 0) {
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return;
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}
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const errors = {};
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Object.entries(this.hash.validations)
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// filter out strings, for now these are helps, but ain't great if someone has a item.help
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.filter(([key, value]) => typeof value !== 'string')
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.forEach(([key, item]) => {
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// optionally set things for you
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if(this.item) {
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this.item[key] = value;
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}
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(item || []).forEach((validation) => {
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const re = new RegExp(validation.test);
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if(!re.test(value)) {
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errors[key] = new ValidationError(validation.error);
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}
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});
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});
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const state = this.hash.chart.state;
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if(state.context == null) {
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state.context = {};
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}
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if(Object.keys(errors).length > 0) {
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state.context.errors = errors;
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this.hash.chart.dispatch("ERROR");
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} else {
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state.context.errors = null;
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this.hash.chart.dispatch("RESET");
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}
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}
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@action
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reset(e) {
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if(e.target.value.length === 0) {
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const state = this.hash.chart.state;
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if(!state.context) {
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state.context = {};
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}
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if(!state.context.errors) {
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state.context.errors = {};
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}
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Object.entries(this.hash.validations)
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// filter out strings, for now these are helps, but ain't great if someone has a item.help
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.filter(([key, value]) => typeof value !== 'string')
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.forEach(([key, item]) => {
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if(typeof state.context.errors[key] !== 'undefined') {
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delete state.context.errors[key];
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}
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});
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if(Object.keys(state.context.errors).length === 0) {
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state.context.errors = null;
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this.hash.chart.dispatch("RESET");
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}
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}
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}
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async connect([value], _hash) {
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this.element.addEventListener(
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'input',
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this.listen
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);
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this.element.addEventListener(
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'blur',
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this.reset
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);
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if(this.element.value.length > 0) {
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await Promise.resolve();
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if(this && this.element) {
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this.validate(this.element.value, this.hash.validations);
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}
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}
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}
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@action
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listen(e) {
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this.validate(e.target.value, this.hash.validations);
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}
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disconnect() {
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this.item = null;
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this.hash = null;
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this.element.removeEventListener(
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'input',
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this.listen
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)
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this.element.removeEventListener(
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'blur',
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this.reset
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)
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}
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didReceiveArguments() {
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const [value] = this.args.positional;
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const _hash = this.args.named;
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this.item = value;
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this.hash = _hash;
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if(typeof _hash.chart === 'undefined') {
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this.hash.chart = {
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state: {
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context: {}
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},
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dispatch: (state) => {
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switch(state) {
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case 'ERROR':
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_hash.onchange(this.hash.chart.state.context.errors);
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break;
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case 'RESET':
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_hash.onchange();
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break;
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}
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}
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};
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}
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}
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didInstall() {
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this.connect(this.args.positional, this.args.named);
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}
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willRemove() {
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this.disconnect();
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}
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}
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