Add alert.component.ts
Create the following file in your project.
alert.component.ts
import { ChangeDetectionStrategy, Component, computed, input, TemplateRef, ViewEncapsulation } from '@angular/core';
import { NgIcon, provideIcons } from '@ng-icons/core';
import { lucideCircleAlert } from '@ng-icons/lucide';
import type { ClassValue } from 'clsx';
import { ZardStringTemplateOutletDirective } from '@/shared/core/directives/string-template-outlet/string-template-outlet.directive';
import { mergeClasses } from '@/shared/utils/merge-classes';
import {
alertActionVariants,
alertDescriptionVariants,
alertIconVariants,
alertTitleVariants,
alertVariants,
type ZardAlertTypeVariants,
} from './alert.variants';
@Component({
selector: 'z-alert, [z-alert]',
imports: [NgIcon, ZardStringTemplateOutletDirective],
template: `
@if (zIcon() || iconName()) {
<span [class]="iconClasses()" data-slot="alert-icon">
<ng-container *zStringTemplateOutlet="zIcon()">
<ng-icon [name]="iconName()" class="size-4!" />
</ng-container>
</span>
}
<div class="flex-1">
@if (zTitle()) {
<div [class]="titleClasses()" data-slot="alert-title">
<ng-container *zStringTemplateOutlet="zTitle()">{{ zTitle() }}</ng-container>
</div>
}
@if (zDescription()) {
<div data-slot="alert-description" [class]="descriptionClasses()">
<ng-container *zStringTemplateOutlet="zDescription()">{{ zDescription() }}</ng-container>
</div>
}
@if (zAction()) {
<div data-slot="alert-action" [class]="actionClasses()">
<ng-container *zStringTemplateOutlet="zAction()" />
</div>
}
</div>
`,
changeDetection: ChangeDetectionStrategy.OnPush,
encapsulation: ViewEncapsulation.None,
viewProviders: [provideIcons({ lucideCircleAlert })],
host: {
'[attr.role]': 'role()',
'[class]': 'classes()',
'data-slot': 'alert',
},
exportAs: 'zAlert',
})
export class ZardAlertComponent {
readonly class = input<ClassValue>('');
readonly zAction = input<TemplateRef<void>>();
readonly zDescription = input<string | TemplateRef<void>>('');
readonly zIcon = input<TemplateRef<void> | string>();
readonly zRole = input<'alert' | 'status'>();
readonly zTitle = input<string | TemplateRef<void>>('');
readonly zType = input<ZardAlertTypeVariants>('default');
protected readonly actionClasses = computed(() => alertActionVariants());
protected readonly classes = computed(() => mergeClasses(alertVariants({ zType: this.zType() }), this.class()));
protected readonly descriptionClasses = computed(() => alertDescriptionVariants({ zType: this.zType() }));
protected readonly iconClasses = computed(() => alertIconVariants());
protected readonly role = computed(() => this.zRole() ?? (this.zAction() ? 'status' : 'alert'));
protected readonly titleClasses = computed(() => alertTitleVariants());
protected readonly iconName = computed((): string | undefined => {
const customIcon = this.zIcon();
if (customIcon && !(customIcon instanceof TemplateRef)) {
return customIcon;
}
if (this.zType() === 'destructive') {
return 'lucideCircleAlert';
}
return undefined;
});
}
