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 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 | 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 685x 685x 685x 1x 1x 156x 156x 156x 156x 156x 156x 156x 156x 156x 156x 156x 156x 151x 151x 3x 3x 151x 156x 156x 156x 156x 156x 1x 1x 1x 46x 46x 46x 46x 46x 1x 1x 151x 151x 151x 151x 151x 151x 1x | /*******************************************************************************
* Copyright bei
* Entwicklungs- und Pflegeverbund für das gemeinsame Fachverfahren gefa
*
*******************************************************************************/
import { Component, ElementRef, NgZone, OnDestroy } from '@angular/core';
export type AriaLiveReadDisposer = (finalText?: string) => void;
@Component({
selector: 'gc-aria-live-reader',
template: '',
styleUrls: ['./aria-live-reader.component.css'],
host: {
class: 'gc-scr-only',
// 'aria-atomic': 'true', causes problems on firefox see #2226
'aria-live': 'polite',
},
standalone: false,
})
export class AriaLiveReaderComponent implements OnDestroy {
private timerId: ReturnType<typeof setTimeout> | undefined;
private repeatTimerId: ReturnType<typeof setInterval> | undefined;
constructor(
private readonly zone: NgZone,
private readonly elementRef: ElementRef<HTMLElement>,
) {}
public readText(
text: string,
initialDelay = 0,
interval = 0,
): AriaLiveReadDisposer {
if (interval !== 0 && interval < 500) {
interval = 500;
console.log(
'Interval has be at least 500ms so that a11y tools have a chance to announce',
);
}
this.zone.runOutsideAngular(() => {
clearTimeout(this.timerId);
clearInterval(this.repeatTimerId);
this.timerId = setTimeout(() => {
this.updateText(text, interval);
if (interval > 0) {
this.repeatTimerId = this.repeatTimerId = setInterval(() => {
this.updateText(text, interval);
}, interval);
}
}, initialDelay);
});
return (finalText?: string) => {
this.zone.runOutsideAngular(() => {
clearTimeout(this.timerId);
clearInterval(this.repeatTimerId);
if (finalText) {
this.updateText(finalText, interval);
}
});
};
}
/** @ignore */
ngOnDestroy(): void {
this.zone.runOutsideAngular(() => {
clearTimeout(this.timerId);
clearInterval(this.repeatTimerId);
});
}
private updateText(text: string, interval: number) {
this.elementRef.nativeElement.innerText = text;
setTimeout(
() => (this.elementRef.nativeElement.innerText = ''),
Math.min(1000, Math.max(interval - 100, 400)), // the min repeat is 500 make sure we cleared before
);
}
}
|