openaire-library/sharedComponents/input/input.component.ts

277 lines
11 KiB
TypeScript

import {
Component, ElementRef,
EventEmitter, HostListener,
Input,
OnChanges,
OnDestroy,
OnInit,
Output,
SimpleChanges,
ViewChild
} from "@angular/core";
import {AbstractControl, FormArray, FormControl} from "@angular/forms";
import {HelperFunctions} from "../../utils/HelperFunctions.class";
import {Observable, of, Subscription} from "rxjs";
import {MatSelect} from "@angular/material/select";
import {MatAutocompleteSelectedEvent} from "@angular/material/autocomplete";
import {map, startWith} from "rxjs/operators";
import {MatChipInputEvent} from "@angular/material/chips";
export interface Option {
icon?: string,
iconClass?: string,
value: any,
label: string
}
@Component({
selector: '[dashboard-input]',
template: `
<div *ngIf="label && type != 'checkbox'"
class="uk-text-bold uk-form-label uk-margin-small-bottom">{{label + (required ? ' *' : '')}}</div>
<div *ngIf="hint" class="uk-margin-bottom uk-form-hint">{{hint}}</div>
<div class="uk-grid uk-flex" [ngClass]="'uk-flex-' + flex" [class.uk-grid-small]="gridSmall" uk-grid>
<ng-content></ng-content>
<div [class.uk-hidden]="hideControl" class="uk-width-expand uk-position-relative"
[class.uk-flex-first]="!extraLeft">
<ng-template [ngIf]="icon && formControl.enabled">
<span class="uk-text-muted" [ngClass]="iconLeft?('left'):'right'">
<icon [name]="icon"></icon>
</span>
</ng-template>
<ng-template [ngIf]="formControl.disabled">
<span class="uk-text-muted left">
<icon [name]="'lock'"></icon>
</span>
</ng-template>
<ng-template [ngIf]="type === 'text'">
<div [ngClass]="inputClass"
[class.uk-form-danger]="formControl.invalid && formControl.touched"
[attr.uk-tooltip]="formControl.disabled?'title: This field is not editable; pos: bottom-left':''">
<input class="uk-input" [placeholder]="placeholder" [formControl]="formControl">
</div>
</ng-template>
<ng-template [ngIf]="type === 'textarea'">
<div [ngClass]="inputClass" class="uk-padding-remove-right"
[class.uk-form-danger]="formControl.invalid && formControl.touched"
[attr.uk-tooltip]="formControl.disabled?'title: This field is not editable; pos: bottom-left':''">
<textarea class="uk-textarea"
[rows]="rows" [placeholder]="placeholder"
[formControl]="formControl">
</textarea>
<div class="tools" [class.focused]="focused">
<ng-content select="[options]"></ng-content>
</div>
</div>
</ng-template>
<ng-template [ngIf]="type === 'select'">
<div [ngClass]="inputClass"
[attr.uk-tooltip]="formControl.disabled?'title: This field is not editable; pos: bottom-left':null"
[class.clickable]="formControl.enabled"
[class.uk-form-danger]="formControl.invalid && formControl.touched" (click)="openSelect()">
<mat-form-field class="uk-width-1-1">
<mat-select #select [required]="required" [value]="null"
(openedChange)="stopPropagation()" [formControl]="formControl"
[disableOptionCentering]="true">
<mat-option *ngIf="placeholder" class="uk-hidden" [value]="''">{{placeholder}}</mat-option>
<mat-option *ngFor="let option of options" [value]="option.value">
{{option.label}}
</mat-option>
</mat-select>
</mat-form-field>
</div>
</ng-template>
<ng-template [ngIf]="type === 'chips'">
<div [ngClass]="inputClass"
[attr.uk-tooltip]="formControl.disabled?'title: This field is not editable; pos: bottom-left':null"
[class.clickable]="formControl.enabled"
[class.uk-form-danger]="formControl.invalid && formControl.touched" (click)="openSelect()">
<mat-form-field class="uk-width-1-1">
<mat-chip-list #chipList>
<mat-chip *ngFor="let chip of formAsArray.controls; let i=index" [selectable]="false"
[removable]="removable" [attr.uk-tooltip]="getLabel(chip.value)">
<span class="uk-width-expand uk-text-truncate" [class.uk-text-small]="smallChip">{{getLabel(chip.value)}}</span>
<icon name="remove_circle" class="mat-chip-remove" [ratio]="smallChip?0.8:1" (click)="removed(i)"></icon>
</mat-chip>
<div class="uk-width-expand uk-position-relative chip-input">
<input #searchInput class="uk-width-1-1" [formControl]="searchControl" [matAutocomplete]="auto"
[matChipInputFor]="chipList" [matAutocompleteConnectedTo]="origin"
[matChipInputAddOnBlur]="addExtraChips && searchControl.value"
(matChipInputTokenEnd)="add($event)">
<div *ngIf="placeholder && !searchControl.value" class="placeholder uk-width-1-1"
(click)="searchInput.focus()">{{placeholder}}</div>
</div>
<div class="uk-width-1-1 uk-invisible" matAutocompleteOrigin #origin="matAutocompleteOrigin"></div>
</mat-chip-list>
<mat-autocomplete #auto="matAutocomplete" (optionSelected)="selected($event)" [class]="panelClass" [panelWidth]="panelWidth">
<mat-option *ngFor="let option of filteredOptions | async" [value]="option.value">
{{option.label}}
</mat-option>
</mat-autocomplete>
</mat-form-field>
</div>
</ng-template>
<span *ngIf="formControl.invalid && formControl.errors.error"
class="uk-text-danger input-message">{{formControl.errors.error}}</span>
<span *ngIf="warning" class="uk-text-warning input-message">{{warning}}</span>
<span *ngIf="note" class="input-message">{{note}}</span>
</div>
</div>
<mat-checkbox *ngIf="type === 'checkbox'" [formControl]="formControl">{{label}}</mat-checkbox>
`,
styleUrls: ['input.component.css']
})
export class InputComponent implements OnInit, OnDestroy, OnChanges {
/** Basic information */
@Input('formInput') formControl: AbstractControl;
@Input('type') type: 'text' | 'textarea' | 'select' | 'checkbox' | 'chips' = 'text';
@Input('label') label: string;
@Input('rows') rows: number = 3;
/** Select | chips available options */
@Input('options') options: Option[];
@Input('hint') hint = null;
@Input('placeholder') placeholder = '';
@Input() inputClass: string = 'input-box';
/** Extra element Right or Left of the input */
@Input() extraLeft: boolean = true;
@Input() gridSmall: boolean = false;
@Input() hideControl: boolean = false;
@Input() flex: 'middle' | 'top' | 'bottom' = 'middle';
/** Icon Right or Left on the input */
@Input() icon: string = null;
@Input() iconLeft: boolean = false;
/** Custom messages */
@Input() warning: string = null;
@Input() note: string = null;
/** Chip options */
@Input() removable: boolean = true;
@Input() addExtraChips: boolean = false;
@Input() smallChip: boolean = false;
@Input() panelWidth: number = 300;
@Input() panelClass: string = null;
@Input() showOptionsOnEmpty: boolean = true;
@Output() focusEmitter: EventEmitter<boolean> = new EventEmitter<boolean>();
/** Internal basic information */
public required: boolean = false;
private initValue: any;
/** Chips */
public filteredOptions: Observable<Option[]>;
public searchControl: FormControl;
private subscriptions: any[] = [];
@ViewChild('select') select: MatSelect;
@ViewChild('searchInput') searchInput: ElementRef;
focused: boolean = false;
constructor(private elementRef: ElementRef) {
}
@HostListener('document:click', ['$event'])
clickOut(event) {
this.focused = !!this.elementRef.nativeElement.contains(event.target);
this.focusEmitter.emit(this.focused);
}
ngOnInit(): void {
this.reset();
}
ngOnChanges(changes: SimpleChanges) {
if (changes.formControl) {
this.reset();
}
}
get formAsArray(): FormArray {
return (<FormArray>this.formControl);
}
reset() {
this.unsubscribe();
this.initValue = HelperFunctions.copy(this.formControl.value);
if (this.options && this.type === 'chips') {
this.filteredOptions = of(this.options);
this.searchControl = new FormControl('');
this.filteredOptions = this.searchControl.valueChanges.pipe(startWith(''),
map(option => this.filter(option)));
}
if (this.formControl && this.formControl.validator) {
let validator = this.formControl.validator({} as AbstractControl);
this.required = (validator && validator.required);
}
this.subscriptions.push(this.formControl.valueChanges.subscribe(value => {
value = (value === '') ? null : value;
if (this.initValue === value || (this.initValue === '' && value === null)) {
this.formControl.markAsPristine();
}
}));
if (!this.formControl.value) {
this.formControl.setValue('');
}
}
unsubscribe() {
this.subscriptions.forEach(subscription => {
if (subscription instanceof Subscription) {
subscription.unsubscribe();
}
});
}
openSelect() {
if (this.select) {
this.select.open();
}
}
ngOnDestroy(): void {
this.unsubscribe();
}
stopPropagation() {
event.stopPropagation();
}
removed(index: number) {
this.formAsArray.removeAt(index);
this.formAsArray.markAsDirty();
this.searchControl.setValue('');
this.searchInput.nativeElement.focus();
this.searchInput.nativeElement.value = '';
this.stopPropagation();
}
selected(event: MatAutocompleteSelectedEvent): void {
this.formAsArray.push(new FormControl(event.option.value));
this.formAsArray.markAsDirty();
this.searchControl.setValue('');
this.searchInput.nativeElement.focus();
this.searchInput.nativeElement.value = '';
this.stopPropagation();
}
private filter(value: string): Option[] {
let options = this.options.filter(option => !this.formAsArray.value.find(value => option.value === value));
if ((!value || value.length == 0) && !this.showOptionsOnEmpty) {
return [];
}
const filterValue = value.toString().toLowerCase();
return options.filter(option => option.label.toLowerCase().indexOf(filterValue) != -1);
}
add(event: MatChipInputEvent) {
if (this.addExtraChips && event.value) {
this.stopPropagation();
this.formAsArray.push(new FormControl(event.value));
this.formAsArray.markAsDirty();
this.searchControl.setValue('');
this.searchInput.nativeElement.value = '';
}
}
getLabel(value: any) {
let option = this.options.find(option => option.value === value);
return (option) ? option.label : value;
}
}