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* Copyright bei
* Entwicklungs- und Pflegeverbund für das gemeinsame Fachverfahren gefa
*
*******************************************************************************/
import {
Component,
ElementRef,
EventEmitter,
HostBinding,
Input,
Output,
TemplateRef,
ViewChild,
} from '@angular/core';
import { badgeListAsString } from '../utils/internal-utils';
import {
BadgeItem,
FocusableElementOwner,
LinkItem,
} from '../utils/util.types';
import { createWidgetKeySet } from '../utils/utilities';
import { BadgeItemTemplateContext } from '../badge-list/badge-list.component';
import {
DynamicHeadingLevelPassthroughService,
DynamicHeadingLevelService,
} from '../dynamic-heading/dynamic-heading-level.service';
import { AccordionComponent } from './accordion.component';
/**
* Accordion panel component that represents a single panel in the 'gc-accordion' component.
*/
@Component({
selector: 'gc-accordion-panel',
templateUrl: './accordion-panel.component.html',
styleUrls: ['./accordion-panel.component.css'],
providers: [DynamicHeadingLevelService],
viewProviders: [
{
provide: DynamicHeadingLevelService,
useClass: DynamicHeadingLevelPassthroughService,
},
],
})
export class AccordionPanelComponent implements FocusableElementOwner {
/**
* Title of the top hint section. If set the top hint section will be shown.
*/
@Input()
public hintTitle = '';
/**
* List of elements that will be rendered as hint items at the top of the accordion panel.
*/
@Input()
public hintItems: readonly LinkItem[] = [];
/**
* Title shown in the header
*/
@Input()
public label = '';
/**
* Control if the section is expanded=true, collapsed=false
*/
@HostBinding('class.gc-expanded')
@Input()
public expanded = true;
/**
* Badge items to display in the header
*/
@Input()
public badgeItems: readonly BadgeItem[] = [];
/**
* Icon provider for badge
*/
@Input()
public badgeIconProvider?: TemplateRef<BadgeItemTemplateContext>;
/**
* Internal API - if enabled the badges will be displayed in a new separate row instead wrapping with the label.
* @ignore
*/
@Input()
public _badgesShownInSeparateRow = false;
/**
* Inform about the change of the expanded state
*/
@Output()
public readonly expandedChange: EventEmitter<boolean> =
new EventEmitter<boolean>();
/**
* Internal API - allows to reuse the component in other controls and disables some styles, e.g. top borders.
* @ignore
*/
@Input()
@HostBinding('class.gc-accordion-embedded')
public _embedded = false;
/** @ignore */
@ViewChild('headerbutton')
protected _headerButton!: ElementRef<HTMLButtonElement>;
/** @ignore */
public _parent?: AccordionComponent;
/** @ignore */
protected readonly sectionId: string;
/** @ignore */
protected readonly headerId: string;
constructor() {
const widgetKeys = createWidgetKeySet('gc-accordion-panel');
this.sectionId = `${widgetKeys.baseKey}-content`;
this.headerId = `${widgetKeys.baseKey}-header`;
}
public focusChild(): boolean {
this._headerButton.nativeElement.focus();
return true;
}
/**
* @ignore
* @deprecated use moveFocus
*/
public _focus(): void {
this._headerButton.nativeElement.focus();
}
/**
* @ignore
*/
protected _toggle(): void {
this.expanded = !this.expanded;
this.expandedChange.emit(this.expanded);
}
/**
* @ignore
*/
protected _handleKeyDown(event: KeyboardEvent): void {
if (this._parent) {
const action = this.mapAction(event.key);
if (action !== undefined && this._parent._moveFocus(this, action)) {
event.preventDefault();
}
}
}
/** @ignore */
protected _badgeScreenReaderText(): string {
return ' - ' + badgeListAsString(this.badgeItems);
}
/** @ignore */
private mapAction(key: string) {
switch (key) {
case 'ArrowDown':
return 'next';
case 'ArrowUp':
return 'previous';
case 'End':
return 'last';
case 'Home':
return 'first';
default:
return undefined;
}
}
}
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