120 lines
3.4 KiB
TypeScript
120 lines
3.4 KiB
TypeScript
import { FormControl, FormGroupDirective, NgForm, FormGroup } from '@angular/forms';
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import { Observable } from 'rxjs/Rx';
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import { setTimeout } from 'timers';
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import { Component, EventEmitter, Input, OnInit, Output } from '@angular/core';
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import 'rxjs/add/operator/debounceTime';
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import 'rxjs/add/operator/map';
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import { AutoCompleteConfiguration } from './AutoCompleteConfiguration';
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import { AutoCompleteItem } from './AutoCompleteItem';
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import { ErrorStateMatcher } from '@angular/material';
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@Component({
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selector: 'auto-complete',
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templateUrl: './autocomplete.component.html',
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styleUrls: ['./autocomplete.component.scss']
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})
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export class AutocompleteComponent implements OnInit {
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@Input()
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configuration: AutoCompleteConfiguration;
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@Input()
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mapper: Function;
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@Input()
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typeaheadMS: number;
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@Input()
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placeholder: String;
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@Input()
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validationErrorString: String;
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public errorStateMatcher: AutoCompleteErrorStateMatcher = new AutoCompleteErrorStateMatcher();
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@Input()
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required: boolean;
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@Input() selectedDropdownItem: AutoCompleteItem;
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@Output() selectedDropdownItemChange = new EventEmitter<AutoCompleteItem>();
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@Output()
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output: EventEmitter<AutoCompleteItem> = new EventEmitter<AutoCompleteItem>();
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@Input() form: FormGroup;
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@Input() createNew = false;
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//term = new FormControl();
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@Input()
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ClickFunctionCall: Function;
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loading = false;
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options: AutoCompleteItem[];
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constructor() {
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}
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ngOnInit() {
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const valueChanges = this.form.controls['text'].valueChanges.share();
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valueChanges.subscribe(searchTerm => {
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this.loading = true;
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if (this.form.controls['value'].value) {
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this.resetFormGroupValue();
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}
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});
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valueChanges
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.debounceTime(this.typeaheadMS)
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.subscribe(searchTerm => {
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if (typeof searchTerm === 'string') {
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this.inputOnChange(searchTerm)
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}
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});
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}
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resetFormGroupValue() {
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this.form.patchValue({ value: null }, { emitEvent: false });
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}
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// listingItemToDropDown(item: DropdownListingItem): AutoCompleteItem {
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// return (item as DropdownListingItem).toDropdownList();
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// }
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optionSelected(event: any) {
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this.form.patchValue(event.option.value, { emitEvent: false });
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this.selectedDropdownItemChange.emit(event.option.value);
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//this.form.updateValueAndValidity();
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this.options = [event.option.value];
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this.loading = false;
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}
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inputOnChange(term: string) {
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//this.form.patchValue({ value: null, description: '', text: '' });
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//this.form.updateValueAndValidity();
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this.configuration.criteria.like = term;
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this.configuration.callback(this.configuration.criteria)
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.map((res: any) => this.mapper(res))
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.subscribe(
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(res: AutoCompleteItem[]) => {
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this.options = res;
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},
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null,
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() => { this.loading = false });
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}
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displayFn(item: AutoCompleteItem): string {
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return item.text ? item.text : '';
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}
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//fieldHasErrors(control: FormControl, form: FormGroupDirective | NgForm): boolean {
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// return this.errorStateMatcher(control, form);
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// }
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}
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export class AutoCompleteErrorStateMatcher implements ErrorStateMatcher {
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isErrorState(control: FormControl | null, form: FormGroupDirective | NgForm | null): boolean {
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const isFormSubmitted = form && form.submitted;
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const isControlInvalid = control && control.invalid && (control.dirty || control.touched || isFormSubmitted);
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const isFormInvalid = form && form.enabled && form.invalid && (form.dirty || form.touched || isFormSubmitted)
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return !!(isControlInvalid || isFormInvalid);
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}
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} |