All files / app/layout/header/font-scale-control font-scale-control.component.ts

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import { FontScaleService } from '../../services/font-scale.service';
import { CdkConnectedOverlay, CdkOverlayOrigin } from '@angular/cdk/overlay';
import { ChangeDetectionStrategy, Component, inject, signal } from '@angular/core';
import { ButtonComponent, IconButtonComponent } from '@drevo-web/ui';
 
@Component({
    selector: 'app-font-scale-control',
    imports: [CdkOverlayOrigin, CdkConnectedOverlay, IconButtonComponent, ButtonComponent],
    templateUrl: './font-scale-control.component.html',
    styleUrl: './font-scale-control.component.scss',
    changeDetection: ChangeDetectionStrategy.OnPush,
})
export class FontScaleControlComponent {
    private readonly fontScaleService = inject(FontScaleService);
 
    private readonly _isOpen = signal(false);
    readonly isOpen = this._isOpen.asReadonly();
 
    readonly scalePercent = this.fontScaleService.scalePercent;
    readonly canIncrease = this.fontScaleService.canIncrease;
    readonly canDecrease = this.fontScaleService.canDecrease;
    readonly isDefault = this.fontScaleService.isDefault;
 
    toggle(): void {
        this._isOpen.update(open => !open);
    }
 
    close(): void {
        this._isOpen.set(false);
    }
 
    onOverlayKeydown(event: KeyboardEvent): void {
        if (event.key === 'Escape') {
            this.close();
        }
    }
 
    increase(): void {
        this.fontScaleService.increase();
    }
 
    decrease(): void {
        this.fontScaleService.decrease();
    }
 
    reset(): void {
        this.fontScaleService.reset();
    }
}