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* Copyright (c) Siemens 2016 - 2025
* SPDX-License-Identifier: MIT
*/
import { NgClass } from '@angular/common';
import {
ChangeDetectionStrategy,
Component,
computed,
effect,
inject,
input,
numberAttribute
} from '@angular/core';
import { EntityStatusType } from '@siemens/element-ng/common';
import { SiIconComponent, STATUS_ICON_CONFIG } from '@siemens/element-ng/icon';
import { TranslatableString } from '@siemens/element-translate-ng/translate';
import { SiAvatarBackgroundColorDirective } from './si-avatar-background-color.directive';
export type AvatarSize = 'tiny' | 'xsmall' | 'small' | 'regular' | 'large' | 'xlarge';
@Component({
selector: 'si-avatar',
imports: [NgClass, SiIconComponent],
templateUrl: './si-avatar.component.html',
styleUrl: './si-avatar.component.scss',
changeDetection: ChangeDetectionStrategy.OnPush,
host: {
'[class]': 'size()'
},
hostDirectives: [
{
directive: SiAvatarBackgroundColorDirective,
inputs: ['color', 'autoColor']
}
]
})
export class SiAvatarComponent {
private readonly statusIcons = inject(STATUS_ICON_CONFIG);
/**
* Size of the component.
*
* @defaultValue 'regular'
*/
readonly size = input<AvatarSize>('regular');
/** Image src URL when using an image. */
readonly imageUrl = input<string>();
/** Icon name when using an icon. */
readonly icon = input<string>();
/**
* Initials to be displayed as default avatar if no `icon` or `imageUrl` are provided.
* If also no initials are provided, they will be automatically calculated from the `altText`.
* The value will be used to calculate the background color when `autoColor` is true.
*/
readonly initials = input<string>();
/**
* The desired color index from $element-data-* color tokens. This can be set to any kind of
* positive integer that is then mapped to a color index.
* A better way to set a pseudo-random color is to set * {@link autoColor} to `true`.
*
* @defaultValue undefined
*/
readonly color = input<number | undefined, unknown>(undefined, { transform: numberAttribute });
/** The `alt` text for image, `title` for other modes. */
readonly altText = input.required<string>();
/**
* The status (success, info, warning, caution, danger, critical, pending, progress) to be
* visualized.
*/
readonly status = input<EntityStatusType>();
/**
* aria-label for status
*/
readonly statusAriaLabel = input<TranslatableString>();
protected readonly statusIcon = computed(() => {
const status = this.status();
return status ? this.statusIcons[status] : undefined;
});
protected readonly displayInitials = computed(() => {
const initials = this.initials();
if (initials) {
return initials;
}
const name = this.altText()
.replaceAll(/\([^)]*\)/g, '')
.trim();
const byComma = name.split(/,\s*/);
let first: string;
let last: string;
if (byComma.length > 1) {
last = byComma[0];
first = byComma[1];
} else {
const parts = name.split(' ');
first = parts.shift() ?? '';
last = parts.pop() ?? '';
}
if (first) {
first = first[0].toLocaleUpperCase();
}
if (last) {
last = last[0].toLocaleUpperCase();
}
return first + last;
});
private readonly autoBackgroundColorDirective = inject(SiAvatarBackgroundColorDirective);
constructor() {
effect(() => {
this.autoBackgroundColorDirective.calculateColorFromInitials(this.displayInitials());
});
}
}
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