ngx-mat-lib/esm2015/lib/directives/mat-form-field-required/mat-form-field-required.directive.js

A bunch of utilities and components to use in your Angular 7+ apps!

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,uselessCode} checked by tsc
 */
import { Directive, ChangeDetectorRef, ContentChild } from "@angular/core";
import { FormControl, NgControl } from "@angular/forms";
import { MatFormFieldControl } from "@angular/material";
/**
 * @abstract
 */
export class CustomMatFormFieldNgControl extends NgControl {
}
if (false) {
    /** @type {?} */
    CustomMatFormFieldNgControl.prototype.form;
}
/**
 * @abstract
 * @template T
 */
export class CustomMatFormFieldControl extends MatFormFieldControl {
}
if (false) {
    /** @type {?} */
    CustomMatFormFieldControl.prototype.required;
    /** @type {?} */
    CustomMatFormFieldControl.prototype.ngControl;
}
export class MatFormFieldRequiredDirective {
    /**
     * @param {?} _cdRef
     */
    constructor(_cdRef) {
        this._cdRef = _cdRef;
    }
    /**
     * @return {?}
     */
    ngAfterViewInit() {
        if (this._control && this._control.ngControl) {
            const { ngControl } = this._control;
            /** @type {?} */
            const validator = ngControl.form // [formControl] standalone
                ? ngControl.form.validator
                : ngControl.control // formControlName in FromGroup
                    ? ngControl.control.validator
                    : null;
            if (validator) {
                Promise.resolve().then(() => {
                    this._control.required = !!(validator(new FormControl()) || {})["required"]; // thx @kwkelly
                    this._cdRef.markForCheck();
                });
            }
        }
    }
}
MatFormFieldRequiredDirective.decorators = [
    { type: Directive, args: [{
                selector: "mat-form-field"
            },] }
];
/** @nocollapse */
MatFormFieldRequiredDirective.ctorParameters = () => [
    { type: ChangeDetectorRef }
];
MatFormFieldRequiredDirective.propDecorators = {
    _control: [{ type: ContentChild, args: [MatFormFieldControl,] }]
};
if (false) {
    /** @type {?} */
    MatFormFieldRequiredDirective.prototype._control;
    /** @type {?} */
    MatFormFieldRequiredDirective.prototype._cdRef;
}

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