ng_control_status.ts
/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import {Directive, Self} from '@angular/core';
import {AbstractControlDirective} from './abstract_control_directive';
import {ControlContainer} from './control_container';
import {NgControl} from './ng_control';
export class AbstractControlStatus {
private _cd: AbstractControlDirective;
constructor(cd: AbstractControlDirective) {
this._cd = cd;
}
get ngClassUntouched(): boolean {
return this._cd.control ? this._cd.control.untouched : false;
}
get ngClassTouched(): boolean {
return this._cd.control ? this._cd.control.touched : false;
}
get ngClassPristine(): boolean {
return this._cd.control ? this._cd.control.pristine : false;
}
get ngClassDirty(): boolean {
return this._cd.control ? this._cd.control.dirty : false;
}
get ngClassValid(): boolean {
return this._cd.control ? this._cd.control.valid : false;
}
get ngClassInvalid(): boolean {
return this._cd.control ? this._cd.control.invalid : false;
}
get ngClassPending(): boolean {
return this._cd.control ? this._cd.control.pending : false;
}
}
export const ngControlStatusHost = {
'[class.ng-untouched]': 'ngClassUntouched',
'[class.ng-touched]': 'ngClassTouched',
'[class.ng-pristine]': 'ngClassPristine',
'[class.ng-dirty]': 'ngClassDirty',
'[class.ng-valid]': 'ngClassValid',
'[class.ng-invalid]': 'ngClassInvalid',
'[class.ng-pending]': 'ngClassPending',
};
/**
* @description
* Directive automatically applied to Angular form controls that sets CSS classes
* based on control status.
*
* @usageNotes
*
* ### CSS classes applied
*
* The following classes are applied as the properties become true:
*
* * ng-valid
* * ng-invalid
* * ng-pending
* * ng-pristine
* * ng-dirty
* * ng-untouched
* * ng-touched
*
* @ngModule ReactiveFormsModule
* @ngModule FormsModule
* @publicApi
*/
@Directive({selector: '[formControlName],[ngModel],[formControl]', host: ngControlStatusHost})
export class NgControlStatus extends AbstractControlStatus {
constructor(@Self() cd: NgControl) {
super(cd);
}
}
/**
* @description
* Directive automatically applied to Angular form groups that sets CSS classes
* based on control status (valid/invalid/dirty/etc).
*
* @see `NgControlStatus`
*
* @ngModule ReactiveFormsModule
* @ngModule FormsModule
* @publicApi
*/
@Directive({
selector:
'[formGroupName],[formArrayName],[ngModelGroup],[formGroup],form:not([ngNoForm]),[ngForm]',
host: ngControlStatusHost
})
export class NgControlStatusGroup extends AbstractControlStatus {
constructor(@Self() cd: ControlContainer) {
super(cd);
}
}