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* Copyright bei
* Entwicklungs- und Pflegeverbund für das gemeinsame Fachverfahren gefa
*
*******************************************************************************/
import {
Component,
EventEmitter,
HostBinding,
Input,
OnDestroy,
Output,
QueryList,
ViewChild,
ViewChildren,
} from '@angular/core';
import { FocusableElementOwner } from '../utils/util.types';
import { AriaLiveReaderComponent } from '../internal/aria-live-reader/aria-live-reader.component';
import {
AppHeaderButtonComponent,
AppHeaderButtonType,
} from './app-header-button/app-header-button.component';
export type { AppHeaderButtonType }; // re-export to ensure it's part of the public API (moving it completely to this location would create an import cycle in Angular)
/**
* `gc-app-header` is a horizontal user interface element that contains buttons to show tools and subcontent related to the page
*/
@Component({
selector: 'gc-app-header',
templateUrl: './app-header.component.html',
styleUrls: ['./app-header.component.css'],
standalone: false,
})
export class AppHeaderComponent implements FocusableElementOwner, OnDestroy {
/**
* Label that will show on the header.
*/
@Input()
public label = '';
/**
* Number of new appointment notifications.
*/
@Input()
public newAppointments?: number;
/**
* Number of new message notifications.
*/
@Input()
public newMessages?: number;
/**
* Prefix text shown in loading tooltip.
*/
@Input()
public loadingTextPrefix = 'Behördenname';
/**
* Buttons showing up on the header right side.
*/
@Input()
public shownHeaderButtons: ReadonlySet<AppHeaderButtonType> = new Set([
'search',
'calendar',
'notifications',
'person',
'help',
]);
/**
* The method that gets fired when a button is pressed. Emits `undefined` after a button is deselected and no other
* button is selected instead.
*/
@Output()
public readonly selectedButtonChange: EventEmitter<
AppHeaderButtonType | undefined
> = new EventEmitter<AppHeaderButtonType | undefined>();
/**
* @ignore
*/
@ViewChildren(AppHeaderButtonComponent)
private appHeaderButtons?: QueryList<AppHeaderButtonComponent>;
/** @ignore */
@ViewChild('ariaLiveRegion')
private ariaLiveRegion?: AriaLiveReaderComponent;
/**
* Indicates that the app-header is in a loading state.
*/
@Input()
public get isLoading() {
return this._isLoading;
}
public set isLoading(value: boolean) {
this._isLoading = value;
clearTimeout(this.clearTimer);
if (this._isLoading) {
this.loadedAfterTwoSeconds = false;
this.clearTimer = setTimeout(() => {
this.loadedAfterTwoSeconds = true;
}, 2000);
} else if (this.loadedAfterTwoSeconds) {
this.ariaLiveRegion?.readText(`${this.loadingTextPrefix} geladen`);
}
}
/**
* Currently selected button.
* When `undefined`, no button is selected.
*/
@Input()
public get selectedButton(): AppHeaderButtonType | undefined {
return this._selectedButton;
}
public set selectedButton(value: AppHeaderButtonType | undefined) {
this.handleButtonComponentSelection(value);
this._selectedButton = value;
}
/** @ignore */
public get newAppointmentsDescription(): string {
if (this.newAppointments === undefined || this.newAppointments === 0) {
return '';
} else {
return (
this.newAppointments.toString() +
(this.newAppointments == 1 ? ' neuer Termin' : ' neue Termine')
);
}
}
/** @ignore */
public get newMessagesDescription(): string {
if (this.newMessages === undefined || this.newMessages === 0) {
return '';
} else {
return (
this.newMessages.toString() +
(this.newMessages == 1 ? ' neue Meldung' : ' neue Meldungen')
);
}
}
/** @ignore */
@HostBinding('style.--gc-right-buttons-count')
protected get rightHeaderButtonsCount(): number {
return this.shownHeaderButtons.size;
}
/** @ignore */
private _selectedButton?: AppHeaderButtonType;
/** @ignore */
private clearTimer?: ReturnType<typeof setTimeout>;
/** @ignore */
private _isLoading = false;
/** @ignore */
private loadedAfterTwoSeconds = false;
/**
* @ignore
*/
ngOnDestroy(): void {
if (this.clearTimer) {
clearTimeout(this.clearTimer);
this.clearTimer = undefined;
}
}
public focusChild(): boolean {
const foundButton = this.appHeaderButtons?.find(
btn => btn.type === this.selectedButton,
);
if (foundButton) {
foundButton.focusChild();
return true;
} else if (this.appHeaderButtons?.first.button) {
this.appHeaderButtons.first.focusChild();
return true;
} else {
return false;
}
}
/**
* @ignore
*/
public _onSelect(button: AppHeaderButtonComponent): void {
if (this.selectedButton === button.type) {
this._selectedButton = undefined;
} else {
this._selectedButton = button.type;
}
this.handleButtonComponentSelection(button.type);
this.selectedButtonChange.emit(this._selectedButton);
}
/**
* @ignore
* handles visual button selection
*/
private handleButtonComponentSelection(
buttonType?: AppHeaderButtonType,
): void {
const foundButton = this.appHeaderButtons?.find(
btn => btn.type === buttonType,
);
if (foundButton && !foundButton.selected) {
this.appHeaderButtons?.forEach(btn => (btn.selected = false));
foundButton.selected = true;
} else if (buttonType === undefined) {
this.appHeaderButtons?.forEach(btn => (btn.selected = false));
}
}
}
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