forked from EVOgeek/Vmeda.Online
73 lines
2.5 KiB
TypeScript
73 lines
2.5 KiB
TypeScript
// (C) Copyright 2015 Moodle Pty Ltd.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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import { toBoolean } from '@/core/transforms/boolean';
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import { Component, Input, AfterViewInit, ElementRef } from '@angular/core';
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import { CoreTextUtils } from '@services/utils/text';
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import { Translate } from '@singletons';
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/**
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* Directive to add a red asterisk for required input fields.
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*
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* @description
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* For forms with required and not required fields, it is recommended to use this directive to mark the required ones.
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*
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* This directive should be applied in the label. Example:
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*
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* <p slot="label" [core-mark-required]="true">Username</p>
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*/
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@Component({
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selector: '[core-mark-required]',
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templateUrl: 'core-mark-required.html',
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styleUrls: ['mark-required.scss'],
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})
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export class CoreMarkRequiredComponent implements AfterViewInit {
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@Input({ alias: 'core-mark-required', transform: toBoolean }) coreMarkRequired = true;
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protected hostElement: HTMLElement;
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requiredLabel = Translate.instant('core.required');
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constructor(
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element: ElementRef,
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) {
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this.hostElement = element.nativeElement;
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}
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/**
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* @inheritdoc
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*/
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ngAfterViewInit(): void {
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if (this.coreMarkRequired) {
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// Add the "required" to the aria-label.
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const ariaLabel = this.hostElement.getAttribute('aria-label') ||
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CoreTextUtils.cleanTags(this.hostElement.innerHTML, { singleLine: true });
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if (ariaLabel) {
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this.hostElement.setAttribute('aria-label', ariaLabel + '. ' + this.requiredLabel);
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}
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} else {
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// Remove the "required" from the aria-label.
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const ariaLabel = this.hostElement.getAttribute('aria-label');
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if (ariaLabel) {
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this.hostElement.setAttribute('aria-label', ariaLabel.replace('. ' + this.requiredLabel, ''));
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}
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}
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const input = this.hostElement.closest('ion-input, ion-textarea');
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input?.setAttribute('required', this.coreMarkRequired ? 'true' : 'false');
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}
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}
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