Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 | 1x 1x 1x 11x 11x 11x 11x 11x 11x 11x 11x 11x 13x 13x | import {
afterNextRender,
ChangeDetectionStrategy,
Component,
DestroyRef,
ElementRef,
inject,
input,
signal,
viewChild,
} from '@angular/core';
import { MatTooltip } from '@angular/material/tooltip';
@Component({
selector: 'ui-line-clamp',
imports: [MatTooltip],
templateUrl: './line-clamp.component.html',
styleUrl: './line-clamp.component.scss',
changeDetection: ChangeDetectionStrategy.OnPush,
host: {
'[style.--lines]': 'lines()',
},
})
export class LineClampComponent {
readonly lines = input(2);
readonly tooltip = input('');
private readonly _isTruncated = signal(false);
protected readonly contentEl = viewChild.required<ElementRef<HTMLElement>>('content');
private readonly destroyRef = inject(DestroyRef);
readonly isTruncated = this._isTruncated.asReadonly();
constructor() {
afterNextRender(() => {
this.checkTruncation();
Iif (typeof ResizeObserver !== 'undefined') {
const observer = new ResizeObserver(() => this.checkTruncation());
observer.observe(this.contentEl().nativeElement);
this.destroyRef.onDestroy(() => observer.disconnect());
}
});
}
private checkTruncation(): void {
const el = this.contentEl().nativeElement;
this._isTruncated.set(el.scrollHeight > el.clientHeight);
}
}
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