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* Copyright bei
* Entwicklungs- und Pflegeverbund für das gemeinsame Fachverfahren gefa
*
*******************************************************************************/
import {
Component,
ElementRef,
EventEmitter,
Input,
Output,
ViewChild,
} from '@angular/core';
import { IndexedItem, textToLine } from '../../../utils/internal-utils';
import { Item, Key, WidgetKeySet } from '../../../utils/util.types';
import { createWidgetKeySet, itemTrack } from '../../../utils/utilities';
import {
KeyFocusTarget,
LegacyBasePickerComponent,
} from '../../../picker/legacy-base-picker.component';
import { SelectionEvent } from '../../listbox.directive';
@Component({
selector: 'gc-wizard-stepper-horizontal',
templateUrl: './wizard-stepper-horizontal.component.html',
styleUrls: [
'./../../../utils/styles/reset-button.css',
'./wizard-stepper-horizontal.component.css',
],
standalone: false,
})
export class WizardStepperHorizontalComponent extends LegacyBasePickerComponent<
Item,
Item
> {
/** Inform about the change of the selection state */
@Output()
public readonly valueChange: EventEmitter<Item> = new EventEmitter<Item>();
@Input()
public selectableItems: readonly Item[] = [];
@Input()
public controlledId = '';
@Input()
public invalidItemKeys: ReadonlySet<Key> = new Set();
@ViewChild('button')
public button!: ElementRef<HTMLButtonElement>;
@ViewChild('wizardStepperContainer')
private containerElement!: ElementRef<HTMLDivElement>;
/**
* The value represents the selected value
*/
@Input()
public get value(): Item | undefined {
return this.storage.selected;
}
public set value(value: Item | undefined) {
this.storage.selected = value;
}
@Input()
public override get items(): readonly Item[] {
return super.items;
}
public override set items(items: readonly Item[]) {
super.items = items;
}
/** @ignore */
public get _listboxId(): string {
return this._widgetKeys.baseKey + '-lb';
}
/** @ignore */
public get _ariaControls(): string | undefined {
const idList = [
this._impl_drawerOpen ? this._listboxId : '',
this.controlledId,
]
.join(' ')
.trim();
return idList ? idList : undefined;
}
public readonly _widgetKeys: WidgetKeySet = createWidgetKeySet(
'gc-wizard-stepper-horizontal',
);
public _hasFocus = false;
/**
* @ignore
*/
public _processItemText(text: string) {
return textToLine(text, 32, '<br>');
}
public getAnker(): ElementRef<HTMLElement> {
return this.button;
}
public getScrollTarget(): ElementRef<HTMLElement> | undefined {
return this.containerElement;
}
public _isSelected(item: IndexedItem<Item>): boolean {
return item.value === this.value;
}
public _isSelectable(key: Key): boolean {
return this.selectableItems.some(i => i.key === key);
}
public _getAriaMessage(): string {
const itemIndex = this.items.findIndex(i => i.key === this.value?.key);
return (
'Arbeitsschritt ' +
(itemIndex !== -1 ? itemIndex + 1 : 1).toString() +
' von ' +
this.items.length.toString() +
(this.invalidItemKeys.size > 0 ? this.getInvalidStepIndexes() : '') +
'.'
);
}
public _onSelect(event: SelectionEvent): void {
const item = this.storage.indexItems.find(i => i.key === event.key);
if (item && !this.disabledItems.has(item.key)) {
this._impl_onSelect(item.key);
}
}
/** @ignore */
public _impl_onSelect(key: Key): void {
if (!this._isDisabled(key)) {
const value = this.storage.getValueByKey(key);
if (value != undefined) {
this._impl_handleChange(value);
this._impl_close(true);
}
}
}
/** @ignore */
public _impl_handleChange(value: Item): void {
this.value = value;
this.valueChange.emit(value);
}
/** @ignore */
protected _impl_onOpen(focusItem: KeyFocusTarget): KeyFocusTarget {
// always open selected value if set
if (this.value != undefined) {
const key = this.storage.getItemByValue(this.value)?.key;
if (key != undefined) {
focusItem = key;
}
}
return focusItem;
}
/** @ignore */
protected _itemTrackBy(item: Item): string {
return itemTrack(item);
}
/** @ignore */
private getInvalidStepIndexes() {
let invalidItemsAriaText = ' - Fehlerhafte Eingaben in Schritt ';
const invalidStepIndexes: number[] = [];
this.invalidItemKeys.forEach(value => {
invalidStepIndexes.push(this.items.findIndex(i => i.key === value));
});
invalidStepIndexes.forEach((stepIndex, idx) => {
const stringifiedIndex = (stepIndex + 1).toString();
if (idx === 0) {
invalidItemsAriaText += stringifiedIndex;
} else {
invalidItemsAriaText +=
idx === invalidStepIndexes.length - 1
? ` und ${stringifiedIndex}`
: `, ${stringifiedIndex}`;
}
});
return invalidItemsAriaText;
}
}
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