85 lines
2.9 KiB
TypeScript
85 lines
2.9 KiB
TypeScript
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import {of as observableOf, Observable } from 'rxjs';
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import {distinctUntilChanged, debounceTime, takeUntil } from 'rxjs/operators';
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import { SelectionModel } from '@angular/cdk/collections';
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import { Component, EventEmitter, Input, OnInit, Output, ViewChild } from '@angular/core';
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import { FormControl } from '@angular/forms';
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import { MatListOption, MatSelectionList } from '@angular/material/list';
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import { BaseComponent } from '../../../../core/common/base/base.component';
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@Component({
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selector: 'app-explore-dmp-filter-item-component',
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templateUrl: './explore-dmp-filter-item.component.html',
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styleUrls: ['./explore-dmp-filter-item.component.scss']
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})
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export class ExploreDmpFilterItemComponent extends BaseComponent implements OnInit {
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@Input()
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searchEnabled = false;
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@Input()
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requestDelay = 200;
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@Input()
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multipleSelect = true;
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@Input()
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filterOptions: (value) => Observable<any[]>;
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@Input()
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options: Observable<any[]> = observableOf([]);
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@Input()
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displayTitleFunc: (value) => string;
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@Input()
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displayValueFunc: (value) => string;
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@Output()
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selectedChanged = new EventEmitter();
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@Output()
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optionRemoved = new EventEmitter();
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optionSearchControl = new FormControl('');
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public selectedOptions: any[] = [];
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@ViewChild('optionsList', { static: true }) selectionList: MatSelectionList;
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constructor() { super(); }
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ngOnInit(): void {
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if (!this.multipleSelect) { this.selectionList.selectedOptions = new SelectionModel<MatListOption>(this.multipleSelect); }
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this.optionSearchControl.valueChanges.pipe(debounceTime(this.requestDelay),
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distinctUntilChanged(),)
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.pipe(takeUntil(this._destroyed))
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.subscribe(x => { if (this.filterOptions) { this.options = this.filterOptions(x); } });
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}
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public selectionChanged(event: any) {
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const eventValue = event.option.value;
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if (event.option.selected) { this.selectedOptions.push(eventValue); }
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if (!event.option.selected) {
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const index = this.selectedOptions.map(x => this.displayValue(x)).indexOf(this.displayValue(eventValue));
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this.selectedOptions.splice(index, 1);
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}
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this.selectedChanged.emit(event);
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}
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public removeOption(grant) {
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const list = this.selectionList.selectedOptions.selected.map(x => x.value);
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const indexOfGrant = list.indexOf(grant);
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if (this.selectionList.selectedOptions.selected[indexOfGrant]) {
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this.selectionList.selectedOptions.selected[indexOfGrant].selected = false;
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this.selectionList.selectedOptions.selected.splice(indexOfGrant, 1);
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}
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this.selectedOptions.splice(this.selectedOptions.map(x => this.displayValue(x)).indexOf(this.displayValue(grant)), 1);
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this.optionRemoved.emit(grant);
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}
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public isOptionSelected(value) {
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return this.selectedOptions.map(x => this.displayValue(x)).indexOf(this.displayValue(value)) !== -1;
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}
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displayLabel(value) {
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return this.displayTitleFunc ? this.displayTitleFunc(value) : value;
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}
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displayValue(value) {
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return this.displayValueFunc ? this.displayValueFunc(value) : value;
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}
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}
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