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* Copyright (c) Siemens 2016 - 2025
* SPDX-License-Identifier: MIT
*/
import { NgTemplateOutlet } from '@angular/common';
import {
Component,
input,
OnInit,
output,
TemplateRef,
OnDestroy,
inject,
DestroyRef,
ChangeDetectionStrategy
} from '@angular/core';
import { takeUntilDestroyed } from '@angular/core/rxjs-interop';
import { FormControl, FormGroup, ReactiveFormsModule } from '@angular/forms';
import { SiInlineNotificationComponent } from '@siemens/element-ng/inline-notification';
import {
PasswordPolicy,
SiPasswordStrengthComponent,
SiPasswordStrengthDirective
} from '@siemens/element-ng/password-strength';
import { SiPasswordToggleComponent } from '@siemens/element-ng/password-toggle';
import { SiTranslatePipe, t } from '@siemens/element-translate-ng/translate';
import { AlertConfig } from '../alert-config.model';
import { SiLandingPageComponent } from '../si-landing-page.component';
import { ChangePassword } from '../si-landing-page.model';
/**
* A component for changing user passwords with strength validation and policy enforcement.
*
* This component provides a form for users to change their password, including
* password strength indicators, policy validation, and confirmation fields.
* It supports custom password policies and displays inline notifications for alerts.
*
* @example
* ```html
* <si-change-password
* [passwordStrength]="passwordPolicy"
* [passwordPolicyContent]="policyTemplate"
* [changePasswordAlert]="alertConfig"
* (changePasswordRequested)="handlePasswordChange($event)"
* (back)="handleBack()">
* </si-change-password>
* ```
*/
@Component({
selector: 'si-change-password',
imports: [
ReactiveFormsModule,
SiTranslatePipe,
SiPasswordToggleComponent,
NgTemplateOutlet,
SiInlineNotificationComponent,
SiPasswordStrengthComponent,
SiPasswordStrengthDirective
],
templateUrl: './si-change-password.component.html',
changeDetection: ChangeDetectionStrategy.OnPush
})
export class SiChangePasswordComponent implements OnInit, OnDestroy {
private static idCounter = 0;
/**
* Change password heading.
*
* @defaultValue
* ```
* t(() => $localize`:@@SI_CHANGE_PASSWORD.CHANGE_PASSWORD:Change password`)
* ```
*/
readonly heading = input(
t(() => $localize`:@@SI_CHANGE_PASSWORD.CHANGE_PASSWORD:Change password`)
);
/**
* Short description of the action to perform.
*
* @defaultValue
* ```
* t(() => $localize`:@@SI_CHANGE_PASSWORD.CHANGE_FACTORY_PASSWORD:Factory set password must be changed`)
* ```
*/
readonly subheading = input(
t(
() =>
$localize`:@@SI_CHANGE_PASSWORD.CHANGE_FACTORY_PASSWORD:Factory set password must be changed`
)
);
/**
* Label for new password input field.
*
* @defaultValue
* ```
* t(() => $localize`:@@SI_CHANGE_PASSWORD.NEW_PASSWORD:New password`)
* ```
*/
readonly newPasswordLabel = input(
t(() => $localize`:@@SI_CHANGE_PASSWORD.NEW_PASSWORD:New password`)
);
/**
* Label for confirm password input field.
*
* @defaultValue
* ```
* t(() => $localize`:@@SI_CHANGE_PASSWORD.CONFIRM_PASSWORD:Confirm password`)
* ```
*/
readonly confirmPasswordLabel = input(
t(() => $localize`:@@SI_CHANGE_PASSWORD.CONFIRM_PASSWORD:Confirm password`)
);
/**
* Label for change password button.
*
* @defaultValue
* ```
* t(() => $localize`:@@SI_CHANGE_PASSWORD.CHANGE:Change`)
* ```
*/
readonly changeButtonLabel = input(t(() => $localize`:@@SI_CHANGE_PASSWORD.CHANGE:Change`));
/**
* Description of back button.
*
* @defaultValue
* ```
* t(() => $localize`:@@SI_CHANGE_PASSWORD.BACK:Back`)
* ```
*/
readonly backButtonLabel = input(t(() => $localize`:@@SI_CHANGE_PASSWORD.BACK:Back`));
/**
* Disables the change password button.
*
* @defaultValue false
*/
readonly disableChange = input(false);
/**
* Title of the password policy.
*
* @defaultValue
* ```
* t(() => $localize`:@@SI_CHANGE_PASSWORD.PASSWORD_POLICY:Password policy`)
* ```
*/
readonly passwordPolicyTitle = input(
t(() => $localize`:@@SI_CHANGE_PASSWORD.PASSWORD_POLICY:Password policy`)
);
/**
* Description of the password policy requirements.
*/
readonly passwordPolicyContent = input.required<string | TemplateRef<unknown>>();
/**
* Description of the password policy requirements.
*/
readonly passwordStrength = input.required<PasswordPolicy>();
/**
* Config to enable/disable password related error/alerts.
*/
readonly changePasswordAlert = input<AlertConfig>();
/**
* Emits password on value change.
*/
readonly valueChanged = output<ChangePassword>();
/**
* Emits password on change event.
*/
readonly changePasswordRequested = output<ChangePassword>();
/**
* The number indicating the number of rules which still can be met. (`-2` --\> 2 rules are
* still unmet, `0` --\> all met)
*/
readonly passwordStrengthChanged = output<number | void>();
/**
* Emits on back click.
*/
readonly back = output<void>();
/**
* Reference to the landing page parent component.
*/
protected landingPage = inject(SiLandingPageComponent, { skipSelf: true, optional: true });
private readonly index = SiChangePasswordComponent.idCounter++;
protected newPasswordId = `__si-change-password-new-password-${this.index}`;
protected confirmPasswordId = `__si-change-password-confirm-password-${this.index}`;
protected changePasswordForm = new FormGroup({
newPassword: new FormControl(''),
confirmPassword: new FormControl('')
});
protected passwordPolicyContentTemplate: TemplateRef<any> | null = null;
private destroyRef = inject(DestroyRef);
ngOnInit(): void {
this.landingPage?.isFullHeightSection.set(true);
const passwordPolicy = this.passwordPolicyContent();
Iif (passwordPolicy instanceof TemplateRef) {
this.passwordPolicyContentTemplate = passwordPolicy;
}
this.changePasswordForm.valueChanges.pipe(takeUntilDestroyed(this.destroyRef)).subscribe(() => {
this.handleValueChanges();
});
}
ngOnDestroy(): void {
this.landingPage?.isFullHeightSection.set(false);
}
protected submit(): void {
this.changePasswordRequested.emit(this.getPasswordFormValues());
}
protected handleValueChanges(): void {
this.valueChanged.emit(this.getPasswordFormValues());
}
protected handlePasswordStrengthChanged(data: number | void): void {
this.passwordStrengthChanged.emit(data);
}
private getPasswordFormValues(): ChangePassword {
const { newPassword: newPassword, confirmPassword } = this.changePasswordForm.value;
return { newPassword: newPassword, confirmPassword };
}
protected handleBackClick(): void {
this.back.emit();
this.changePasswordForm.reset();
}
}
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