114 lines
3.5 KiB
TypeScript
114 lines
3.5 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 { Component, Input, OnChanges, ElementRef, SimpleChange } from '@angular/core';
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/**
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* Core Icon is a component that enables the posibility to add fontawesome icon to the html. It
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* To use fontawesome just place the full icon name with the fa- prefix and
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* the component will detect it.
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*
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* Check available icons at https://fontawesome.com/icons?d=gallery&m=free
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*
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* @deprecated since 3.9.3. Please use <ion-icon name="fa-icon"> instead.
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*/
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@Component({
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selector: 'core-icon',
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template: '<ion-icon [name]="name"><ng-content></ng-content></ion-icon>',
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styleUrls: ['icon.scss'],
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})
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export class CoreIconComponent implements OnChanges {
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// Common params.
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@Input() name = '';
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@Input() color?: string;
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@Input() slash?: boolean; // Display a red slash over the icon.
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// FontAwesome params.
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@Input('fixed-width') fixedWidth?: boolean; // eslint-disable-line @angular-eslint/no-input-rename
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@Input() label?: string;
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@Input() flipRtl?: boolean; // Whether to flip the icon in RTL. Defaults to false.
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protected element: HTMLElement;
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constructor(
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el: ElementRef,
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) {
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this.element = el.nativeElement;
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}
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/**
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* Detect changes on input properties.
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*/
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ngOnChanges(changes: {[name: string]: SimpleChange}): void {
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if (!changes.name || !this.name) {
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return;
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}
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setTimeout(() => {
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this.updateIcon(this.element.children[0]);
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});
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}
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protected updateIcon(iconElement: Element): void {
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!this.label && iconElement.setAttribute('aria-hidden', 'true');
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!this.label && iconElement.setAttribute('role', 'presentation');
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this.label && iconElement.setAttribute('aria-label', this.label);
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this.label && iconElement.setAttribute('title', this.label);
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const attrs = this.element.attributes;
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for (let i = attrs.length - 1; i >= 0; i--) {
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if (attrs[i].name != 'name') {
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iconElement.setAttribute(attrs[i].name, attrs[i].value);
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}
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}
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if (this.isTrueProperty(this.slash)) {
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iconElement.classList.add('icon-slash');
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} else {
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iconElement.classList.remove('icon-slash');
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}
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if (this.isTrueProperty(this.flipRtl)) {
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iconElement.classList.add('icon-flip-rtl');
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} else {
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iconElement.classList.remove('icon-flip-rtl');
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}
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if (this.isTrueProperty(this.fixedWidth)) {
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iconElement.classList.add('fa-fw');
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} else {
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iconElement.classList.remove('fa-fw');
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}
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}
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/**
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* Check if the value is true or on.
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*
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* @param val Value to be checked.
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* @return If has a value equivalent to true.
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*/
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isTrueProperty(val: unknown): boolean {
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if (typeof val === 'string') {
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val = val.toLowerCase().trim();
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return (val === 'true' || val === 'on' || val === '');
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}
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return !!val;
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}
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}
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