更新时间:2023-02-13 20:45:13
对于那些最终遇到同样问题的人,我想出了一种方法来管理它,如下所示:
For those who eventually have the same problem, I figured out a way to manage it, as you can below:
import {Directive, ElementRef, Input, forwardRef} from '@angular/core';
import {ControlValueAccessor, NG_VALUE_ACCESSOR} from "@angular/forms";
declare var $:any;
export const CUSTOM_INPUT_DATE_PICKER_CONTROL_VALUE_ACCESSOR: any = {
provide: NG_VALUE_ACCESSOR,
useExisting: forwardRef(() => DatePickerDirective),
multi: true
};
@Directive({
selector: '[date-picker]',
host: {'(blur)': 'onTouched($event)'},
providers: [CUSTOM_INPUT_DATE_PICKER_CONTROL_VALUE_ACCESSOR]
})
export class DatePickerDirective implements ControlValueAccessor {
private innerValue: string;
@Input('changeMonth') changeMonth:boolean = true;
@Input('changeYear') changeYear:boolean = true;
constructor(private el: ElementRef) {
$(this.el.nativeElement).datepicker({
changeMonth: true,
changeYear: true,
dateFormat: 'dd/mm/yy'
}).on('change', e => this.onChange(e.target.value));
}
public onChange: any = (_) => { /*Empty*/ }
public onTouched: any = () => { /*Empty*/ }
get value(): any {
return this.innerValue;
};
//set accessor including call the onchange callback
set value(v: any) {
if (v !== this.innerValue) {
this.innerValue = v;
this.onChange(v);
}
}
writeValue(val: string) : void {
this.innerValue = val;
}
registerOnChange(fn: any): void {
this.onChange = fn;
}
registerOnTouched(fn: any): void {
this.onTouched = fn;
}
}