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| 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 | 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 225x 225x 225x 1x 1x 241x 241x 241x 241x 241x 18x 241x 223x 223x 223x 223x 223x 241x 241x 241x 1x 1x 225x 225x 225x 225x 225x 225x 225x 1x 1x 232x 232x 1x | import { AfterContentInit, Directive, ElementRef, NgZone } from '@angular/core';
import { take } from 'rxjs/operators';
import { getKeyboardFocusableElements } from '../utils/internal-utils';
@Directive({
selector: '[data-gc-auto-focus-area]',
standalone: false,
})
export class AutoFocusAreaDirective implements AfterContentInit {
constructor(
private _el: ElementRef<HTMLElement>,
private _ngZone: NgZone,
) {}
public static focusInitialElement(nativeElement: HTMLElement): boolean {
const focusTarget = nativeElement.querySelector<HTMLElement>(
'[data-gc-initial-focus="true"]',
);
if (focusTarget !== null) {
focusTarget.focus();
return true;
} else {
const elements = getKeyboardFocusableElements(nativeElement);
if (elements.length > 0) {
const el = elements[0];
el.focus();
return true;
} else {
return false;
}
}
}
ngAfterContentInit() {
if (this._ngZone.isStable) {
this.focusInitialElement();
} else {
this._ngZone.onStable
.pipe(take(1))
.subscribe(this.focusInitialElement.bind(this));
}
}
focusInitialElement(): boolean {
return AutoFocusAreaDirective.focusInitialElement(this._el.nativeElement);
}
}
|