junebug12851 / pokered-save-editor

import { ControlValueAccessor } from '@angular/forms';

export class ValueAccessorBase<T> implements ControlValueAccessor {

    // @ts-ignore

    private innerValue: T;

    private changed = new Array<(value: T) => void>();

    private touched = new Array<() => void>();

    get value(): T {

        return this.innerValue;

    }

    set value(value: T) {

        if (this.innerValue !== value) {

            this.innerValue = value;

            this.changed.forEach(f => f(value));

        }

    }

    touch() {

        this.touched.forEach(f => f());

    }

    writeValue(value: T) {

        this.innerValue = value;

    }

    registerOnChange(fn: (value: T) => void) {

        this.changed.push(fn);

    }

    registerOnTouched(fn: () => void) {

        this.touched.push(fn);

    }

}