@nebular/theme
Version:
@nebular/theme
46 lines • 1.66 kB
JavaScript
import { Inject, Injectable, NgZone } from '@angular/core';
import { FocusTrap, FocusTrapFactory, InteractivityChecker } from '@angular/cdk/a11y';
import { NB_DOCUMENT } from '../../../theme.options';
/**
* Overrides angular cdk focus trap to keep restore functionality inside trap.
* */
export class NbFocusTrap extends FocusTrap {
constructor(element, checker, ngZone, document, deferAnchors) {
super(element, checker, ngZone, document, deferAnchors);
this.element = element;
this.checker = checker;
this.ngZone = ngZone;
this.document = document;
this.savePreviouslyFocusedElement();
}
restoreFocus() {
this.previouslyFocusedElement.focus();
this.destroy();
}
blurPreviouslyFocusedElement() {
this.previouslyFocusedElement.blur();
}
savePreviouslyFocusedElement() {
this.previouslyFocusedElement = this.document.activeElement;
}
}
export class NbFocusTrapFactoryService extends FocusTrapFactory {
constructor(checker, ngZone, document) {
super(checker, ngZone, document);
this.checker = checker;
this.ngZone = ngZone;
this.document = document;
}
create(element, deferCaptureElements) {
return new NbFocusTrap(element, this.checker, this.ngZone, this.document, deferCaptureElements);
}
}
NbFocusTrapFactoryService.decorators = [
{ type: Injectable }
];
NbFocusTrapFactoryService.ctorParameters = () => [
{ type: InteractivityChecker },
{ type: NgZone },
{ type: undefined, decorators: [{ type: Inject, args: [NB_DOCUMENT,] }] }
];
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