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Files
browser/libs/angular/src/vault/components/icon.component.ts

90 lines
3.1 KiB
TypeScript

import { ChangeDetectionStrategy, Component, computed, input, signal } from "@angular/core";
import { toObservable } from "@angular/core/rxjs-interop";
import {
combineLatest,
distinctUntilChanged,
map,
tap,
Observable,
startWith,
pairwise,
} from "rxjs";
import { DomainSettingsService } from "@bitwarden/common/autofill/services/domain-settings.service";
import { EnvironmentService } from "@bitwarden/common/platform/abstractions/environment.service";
import { buildCipherIcon, CipherIconDetails } from "@bitwarden/common/vault/icon/build-cipher-icon";
import { CipherViewLike } from "@bitwarden/common/vault/utils/cipher-view-like-utils";
@Component({
selector: "app-vault-icon",
templateUrl: "icon.component.html",
changeDetection: ChangeDetectionStrategy.OnPush,
standalone: false,
})
export class IconComponent {
/**
* The cipher to display the icon for.
*/
readonly cipher = input.required<CipherViewLike>();
/**
* coloredIcon will adjust the size of favicons and the colors of the text icon when user is in the item details view.
*/
readonly coloredIcon = input<boolean>(false);
/**
* Optional custom size for the icon in pixels.
* When provided, forces explicit dimensions on the icon wrapper to prevent layout collapse at different zoom levels.
* If not provided, the wrapper has no explicit dimensions and relies on CSS classes (tw-size-6/24px for images).
* This can cause the wrapper to collapse when images are loading/hidden, especially at high browser zoom levels.
* Reference: default image size is tw-size-6 (24px), coloredIcon uses 36px.
*/
readonly size = input<number>();
readonly imageLoaded = signal(false);
/**
* Computed style object for icon dimensions.
* Centralizes the sizing logic to avoid repetition in the template.
*/
protected readonly iconStyle = computed(() => {
if (this.coloredIcon()) {
return { width: "36px", height: "36px" };
}
const size = this.size();
if (size) {
return { width: size + "px", height: size + "px" };
}
return {};
});
protected data$: Observable<CipherIconDetails>;
constructor(
private environmentService: EnvironmentService,
private domainSettingsService: DomainSettingsService,
) {
const iconSettings$ = combineLatest([
this.environmentService.environment$.pipe(map((e) => e.getIconsUrl())),
this.domainSettingsService.showFavicons$.pipe(distinctUntilChanged()),
]).pipe(
map(([iconsUrl, showFavicon]) => ({ iconsUrl, showFavicon })),
startWith({ iconsUrl: null, showFavicon: false }), // Start with a safe default to avoid flickering icons
distinctUntilChanged(),
);
this.data$ = combineLatest([iconSettings$, toObservable(this.cipher)]).pipe(
map(([{ iconsUrl, showFavicon }, cipher]) => buildCipherIcon(iconsUrl, cipher, showFavicon)),
startWith(null),
pairwise(),
tap(([prev, next]) => {
if (prev?.image !== next?.image) {
// The image changed, reset the loaded state to not show an empty icon
this.imageLoaded.set(false);
}
}),
map(([_, next]) => next!),
);
}
}