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/**
* MIT License
*
* Copyright (c) 2017 Kevin Kipp
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
*
* Based on https://github.com/third774/ng-bootstrap-form-validation
*/
import { Directive, Host, HostBinding, Input, Optional, SkipSelf } from '@angular/core';
import { ControlContainer, FormControl } from '@angular/forms';
export function controlPath(name: string, parent: ControlContainer): string[] {
// tslint:disable-next-line:no-non-null-assertion
return [...parent.path!, name];
}
@Directive({
// tslint:disable-next-line:directive-selector
selector: '.form-control,.form-check-input,.custom-control-input'
})
export class CdFormControlDirective {
@Input()
formControlName: string;
@Input()
formControl: string;
@HostBinding('class.is-valid')
get validClass() {
if (!this.control) {
return false;
}
return this.control.valid && (this.control.touched || this.control.dirty);
}
@HostBinding('class.is-invalid')
get invalidClass() {
if (!this.control) {
return false;
}
return this.control.invalid && this.control.touched && this.control.dirty;
}
get path() {
return controlPath(this.formControlName, this.parent);
}
get control(): FormControl {
return this.formDirective && this.formDirective.getControl(this);
}
get formDirective(): any {
return this.parent ? this.parent.formDirective : null;
}
constructor(
// this value might be null, but we union type it as such until
// this issue is resolved: https://github.com/angular/angular/issues/25544
@Optional()
@Host()
@SkipSelf()
private parent: ControlContainer
) {}
}
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