forked from EVOgeek/Vmeda.Online
62 lines
1.8 KiB
TypeScript
62 lines
1.8 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 { Directive, ElementRef, OnInit, Output, EventEmitter, OnChanges, SimpleChanges, Input } from '@angular/core';
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import { CoreDom } from '@singletons/dom';
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/**
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* Directive to emulate click and key actions following aria role button.
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*/
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@Directive({
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selector: '[ariaButtonClick]',
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})
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export class CoreAriaButtonClickDirective implements OnInit, OnChanges {
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protected element: HTMLElement;
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@Input() disabled = false;
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@Output() ariaButtonClick = new EventEmitter();
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constructor(
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element: ElementRef,
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) {
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this.element = element.nativeElement;
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}
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/**
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* @inheritdoc
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*/
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ngOnInit(): void {
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CoreDom.initializeClickableElementA11y(this.element, (event) => this.ariaButtonClick.emit(event));
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}
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/**
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* @inheritdoc
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*/
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ngOnChanges(changes: SimpleChanges): void {
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if (!changes.disabled) {
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return;
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}
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if (this.element.getAttribute('tabindex') === '0' && this.disabled) {
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this.element.setAttribute('tabindex', '-1');
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}
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if (this.element.getAttribute('tabindex') === '-1' && !this.disabled) {
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this.element.setAttribute('tabindex', '0');
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}
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}
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}
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