@bimeister/pupakit.forms
Version:
PupaKit Forms
88 lines • 14.8 kB
JavaScript
import { Directive, Optional } from '@angular/core';
import { NgControl } from '@angular/forms';
import { filterNotNil, isEmpty, isNil, shareReplayWithRefCount } from '@bimeister/utilities';
import { BehaviorSubject, combineLatest, of, Subscription } from 'rxjs';
import { delay, distinctUntilChanged, map, startWith, switchMap, take, tap } from 'rxjs/operators';
import { isFormControlValidStatus } from '../../functions/is-form-control-valid-status.function';
import '../../types/on-change-callback.type';
import '../../types/on-touched-callback.type';
import * as i0 from "@angular/core";
import * as i1 from "@angular/forms";
export class InputBaseControlValueAccessor {
constructor(ngControl) {
this.ngControl = ngControl;
this.control$ = new BehaviorSubject(null);
this.value$ = new BehaviorSubject(null);
this.isDisabled$ = new BehaviorSubject(null);
this.isTouched$ = new BehaviorSubject(null);
this.isFocused$ = new BehaviorSubject(null);
this.isFilled$ = new BehaviorSubject(false);
this.isValid$ = this.control$.pipe(switchMap((control) => isNil(control)
? of(true)
: control.statusChanges.pipe(startWith(control.status), map((status) => isFormControlValidStatus(status)))), distinctUntilChanged(), shareReplayWithRefCount());
this.onChangeCallback$ = new BehaviorSubject(null);
this.onTouchedCallback$ = new BehaviorSubject(null);
this.subscription = new Subscription();
if (isNil(ngControl)) {
return;
}
ngControl.valueAccessor = this;
this.setControlRef(ngControl);
}
handleChangedValue(onChangeCallback, value) {
onChangeCallback(value);
this.setValue(value);
}
ngOnInit() {
this.subscription.add(this.processNgControlStatusChangesForHandleIsTouched());
}
ngOnDestroy() {
this.subscription.unsubscribe();
}
updateValue(updatedValue) {
this.isTouched$.next(true);
this.isFilled$.next(!isEmpty(updatedValue));
combineLatest([this.onChangeCallback$, this.onTouchedCallback$])
.pipe(take(1))
.subscribe(([onChangeCallback, onTouchedCallback]) => {
if (typeof onTouchedCallback === 'function') {
onTouchedCallback();
}
if (typeof onChangeCallback === 'function') {
this.handleChangedValue(onChangeCallback, updatedValue);
}
});
}
writeValue(newValue) {
this.setValue(newValue);
}
registerOnChange(onChange) {
this.onChangeCallback$.next(onChange);
}
registerOnTouched(onTouched) {
this.onTouchedCallback$.next(onTouched);
}
setDisabledState(isDisabled) {
this.processSetDisabledState(isDisabled);
}
processSetDisabledState(isDisabled) {
const nextDisabledValue = isDisabled ? true : null;
this.isDisabled$.next(nextDisabledValue);
}
setControlRef(control) {
this.control$.next(control);
}
processNgControlStatusChangesForHandleIsTouched() {
return this.control$
.pipe(filterNotNil(), switchMap((control) => control.statusChanges.pipe(delay(0), startWith(this.ngControl.touched), map(() => this.ngControl.touched), tap((isTouched) => this.isTouched$.next(isTouched)))))
.subscribe();
}
}
InputBaseControlValueAccessor.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "14.2.12", ngImport: i0, type: InputBaseControlValueAccessor, deps: [{ token: i1.NgControl, optional: true }], target: i0.ɵɵFactoryTarget.Directive });
InputBaseControlValueAccessor.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: "14.0.0", version: "14.2.12", type: InputBaseControlValueAccessor, ngImport: i0 });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "14.2.12", ngImport: i0, type: InputBaseControlValueAccessor, decorators: [{
type: Directive
}], ctorParameters: function () { return [{ type: i1.NgControl, decorators: [{
type: Optional
}] }]; } });
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{ Directive, OnDestroy, OnInit, Optional } from '@angular/core';\nimport { ControlValueAccessor, FormControlStatus, NgControl } from '@angular/forms';\nimport { filterNotNil, isEmpty, isNil, Nullable, shareReplayWithRefCount } from '@bimeister/utilities';\nimport { BehaviorSubject, combineLatest, Observable, of, Subscription } from 'rxjs';\nimport { delay, distinctUntilChanged, map, startWith, switchMap, take, tap } from 'rxjs/operators';\nimport { isFormControlValidStatus } from '../../functions/is-form-control-valid-status.function';\nimport { OnChangeCallback } from '../../types/on-change-callback.type';\nimport { OnTouchedCallback } from '../../types/on-touched-callback.type';\n\n@Directive()\nexport abstract class InputBaseControlValueAccessor<T> implements ControlValueAccessor, OnDestroy, OnInit {\n  protected readonly control$: BehaviorSubject<Nullable<NgControl>> = new BehaviorSubject(null);\n  public readonly value$: BehaviorSubject<T> = new BehaviorSubject(null);\n\n  public readonly isDisabled$: BehaviorSubject<Nullable<boolean>> = new BehaviorSubject<boolean>(null);\n  public readonly isTouched$: BehaviorSubject<Nullable<boolean>> = new BehaviorSubject<boolean>(null);\n  public readonly isFocused$: BehaviorSubject<Nullable<boolean>> = new BehaviorSubject<boolean>(null);\n  public readonly isFilled$: BehaviorSubject<boolean> = new BehaviorSubject<boolean>(false);\n\n  public readonly isValid$: Observable<boolean> = this.control$.pipe(\n    switchMap((control: NgControl) =>\n      isNil(control)\n        ? of(true)\n        : control.statusChanges.pipe(\n            startWith(control.status),\n            map((status: FormControlStatus) => isFormControlValidStatus(status))\n          )\n    ),\n    distinctUntilChanged(),\n    shareReplayWithRefCount()\n  );\n\n  private readonly onChangeCallback$: BehaviorSubject<OnChangeCallback<T>> = new BehaviorSubject<OnChangeCallback<T>>(\n    null\n  );\n  private readonly onTouchedCallback$: BehaviorSubject<OnTouchedCallback> = new BehaviorSubject<OnTouchedCallback>(\n    null\n  );\n\n  protected readonly subscription: Subscription = new Subscription();\n\n  constructor(@Optional() protected readonly ngControl: NgControl) {\n    if (isNil(ngControl)) {\n      return;\n    }\n    ngControl.valueAccessor = this;\n    this.setControlRef(ngControl);\n  }\n\n  protected abstract setValue(value: T): void;\n\n  protected handleChangedValue(onChangeCallback: OnChangeCallback<any>, value: T): void {\n    onChangeCallback(value);\n    this.setValue(value);\n  }\n\n  public ngOnInit(): void {\n    this.subscription.add(this.processNgControlStatusChangesForHandleIsTouched());\n  }\n\n  public ngOnDestroy(): void {\n    this.subscription.unsubscribe();\n  }\n\n  public updateValue(updatedValue: T): void {\n    this.isTouched$.next(true);\n    this.isFilled$.next(!isEmpty(updatedValue));\n\n    combineLatest([this.onChangeCallback$, this.onTouchedCallback$])\n      .pipe(take(1))\n      .subscribe(([onChangeCallback, onTouchedCallback]: [OnChangeCallback<T>, OnTouchedCallback]) => {\n        if (typeof onTouchedCallback === 'function') {\n          onTouchedCallback();\n        }\n\n        if (typeof onChangeCallback === 'function') {\n          this.handleChangedValue(onChangeCallback, updatedValue);\n        }\n      });\n  }\n\n  public writeValue(newValue: T): void {\n    this.setValue(newValue);\n  }\n\n  public registerOnChange(onChange: OnChangeCallback<T>): void {\n    this.onChangeCallback$.next(onChange);\n  }\n\n  public registerOnTouched(onTouched: OnTouchedCallback): void {\n    this.onTouchedCallback$.next(onTouched);\n  }\n\n  public setDisabledState(isDisabled: boolean): void {\n    this.processSetDisabledState(isDisabled);\n  }\n\n  private processSetDisabledState(isDisabled: boolean): void {\n    const nextDisabledValue: Nullable<boolean> = isDisabled ? true : null;\n    this.isDisabled$.next(nextDisabledValue);\n  }\n\n  private setControlRef(control: NgControl): void {\n    this.control$.next(control);\n  }\n\n  private processNgControlStatusChangesForHandleIsTouched(): Subscription {\n    return this.control$\n      .pipe(\n        filterNotNil(),\n        switchMap((control: NgControl) =>\n          control.statusChanges.pipe(\n            delay(0),\n            startWith(this.ngControl.touched),\n            map(() => this.ngControl.touched),\n            tap((isTouched: boolean) => this.isTouched$.next(isTouched))\n          )\n        )\n      )\n      .subscribe();\n  }\n}\n"]}