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* Copyright (c) Siemens 2016 - 2025
* SPDX-License-Identifier: MIT
*/
import { HttpParams } from '@angular/common/http';
import { Component, input, OnInit, output } from '@angular/core';
import {
addIcons,
elementSortDown,
elementSortUp,
SiIconComponent
} from '@siemens/element-ng/icon';
import { SiTranslatePipe, t, TranslatableString } from '@siemens/element-translate-ng/translate';
export interface SortCriteria {
name: TranslatableString;
key: number | string;
}
@Component({
selector: 'si-sort-bar',
imports: [SiIconComponent, SiTranslatePipe],
templateUrl: './si-sort-bar.component.html',
styleUrl: './si-sort-bar.component.scss'
})
export class SiSortBarComponent implements OnInit {
/**
* Custom sort title.
*
* @defaultValue
* ```
* t(() => $localize`:@@SI_SORT_BAR.TITLE:Sort by`)
* ```
*/
readonly sortTitle = input(t(() => $localize`:@@SI_SORT_BAR.TITLE:Sort by`));
/**
* List of sort criteria.
*/
readonly sortCriteria = input.required<SortCriteria[]>();
/**
* `key` which sortCriteria is active by default.
*/
readonly defaultSortCriteria = input.required<SortCriteria['key']>();
/**
* Output callback event will provide you with a HttpParams object if active
* sortCriteria change.
*/
readonly sortChange = output<HttpParams>();
protected readonly icons = addIcons({ elementSortDown, elementSortUp });
protected activeSortCriteria: SortCriteria['key'] = '';
protected sortIsDescending = false;
ngOnInit(): void {
const defaultSortCriteria = this.defaultSortCriteria();
if (defaultSortCriteria) {
this.setActive(defaultSortCriteria);
}
}
protected setActive(key: SortCriteria['key']): void {
if (this.activeSortCriteria === key) {
this.sortIsDescending = !this.sortIsDescending;
}
this.activeSortCriteria = key;
const searchParams = new HttpParams()
.set('sort', this.activeSortCriteria)
.set('order', this.sortIsDescending ? 'desc' : 'asc');
this.sortChange.emit(searchParams);
}
}
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