File indexing completed on 2024-04-28 15:32:08

 // vi: ts=8 sts=4 sw=4
 /*
     This file is part of the KDE libraries
     SPDX-FileCopyrightText: 1998 Pietro Iglio <iglio@fub.it>
     SPDX-FileCopyrightText: 1999, 2000 Geert Jansen <jansen@kde.org>
     SPDX-FileCopyrightText: 2004, 2005 Andrew Coles <andrew_coles@yahoo.co.uk>
     SPDX-FileCopyrightText: 2006, 2007 Olivier Goffart <ogoffart @ kde.org>
     SPDX-FileCopyrightText: 2015 Elvis Angelaccio <elvis.angelaccio@kde.org>
 
     SPDX-License-Identifier: LGPL-2.0-only
 */
 #ifndef KNEWPASSWORDWIDGET_H
 #define KNEWPASSWORDWIDGET_H
 
 #include <QWidget>
 #include <memory>
 
 #include <kwidgetsaddons_export.h>
 
 /**
  * @class KNewPasswordWidget knewpasswordwidget.h KNewPasswordWidget
  *
  * @short A password input widget.
  *
  * This widget allows the user to enter a new password.
  *
  * The password has to be entered twice to check if the passwords
  * match. A hint about the strength of the entered password is also
  * shown.
  *
  * In order to embed this widget in your custom password dialog,
  * you may want to connect to the passwordStatus() signal.
  * This way you can e.g. disable the OK button if the passwords
  * don't match, warn the user if the password is too weak, and so on.
  *
  * \section usage Usage Example
  * \subsection Setup
  *
  * \code
  *  KNewPasswordWidget *m_passwordWidget = new KNewPasswordWidget(this);
  *  // set a background warning color (taken from the current color scheme)
  *  KColorScheme colorScheme(QPalette::Active, KColorScheme::View);
  *  m_passwordWidget->setBackgroundWarningColor(colorScheme.background(KColorScheme::NegativeBackground).color());
  *  // listen to password status updates
  *  connect(m_passwordWidget, &KNewPasswordWidget::passwordStatusChanged, this, &MyCustomDialog::slotPasswordStatusChanged);
  *  ...
  * \endcode
  *
  * \subsection update Update your custom dialog
  *
  * @snippet knewpasswordwidget_test.cpp update_custom_dialog
  *
  * \subsection accept Accept your custom dialog
  *
  * @snippet knewpasswordwidget_test.cpp accept_custom_dialog
  *
  * @author Geert Jansen <jansen@kde.org>
  * @author Olivier Goffart <ogoffart@kde.org>
  * @author Elvis Angelaccio <elvis.angelaccio@kde.org>
  * @since 5.16
  */
 class KWIDGETSADDONS_EXPORT KNewPasswordWidget : public QWidget
 {
     Q_OBJECT
     Q_PROPERTY(PasswordStatus passwordStatus READ passwordStatus)
     Q_PROPERTY(bool allowEmptyPasswords READ allowEmptyPasswords WRITE setAllowEmptyPasswords)
     Q_PROPERTY(int minimumPasswordLength READ minimumPasswordLength WRITE setMinimumPasswordLength)
     Q_PROPERTY(int maximumPasswordLength READ maximumPasswordLength WRITE setMaximumPasswordLength)
     Q_PROPERTY(int reasonablePasswordLength READ reasonablePasswordLength WRITE setReasonablePasswordLength)
     Q_PROPERTY(int passwordStrengthWarningLevel READ passwordStrengthWarningLevel WRITE setPasswordStrengthWarningLevel)
     Q_PROPERTY(QColor backgroundWarningColor READ backgroundWarningColor WRITE setBackgroundWarningColor)
     Q_PROPERTY(bool passwordStrengthMeterVisible READ isPasswordStrengthMeterVisible WRITE setPasswordStrengthMeterVisible)
     /**
      * @since 5.31
      */
     Q_PROPERTY(bool revealPasswordAvailable READ isRevealPasswordAvailable WRITE setRevealPasswordAvailable)
 
 public:
     /**
      * Status of the password being typed in the widget.
      */
     enum PasswordStatus {
         EmptyPasswordNotAllowed, /**< Both passwords fields empty, but minimum length > 0. */
         PasswordTooShort, /**< Password length is too low. */
         PasswordNotVerified, /**< Password and verification password don't match. */
         WeakPassword, /**< Passwords match but the strength level is not enough. */
         StrongPassword, /**< Passwords match and the strength level is good. */
     };
     Q_ENUM(PasswordStatus)
 
     /**
      * Constructs a password widget.
      *
      * @param parent Passed to lower level constructor.
      */
     explicit KNewPasswordWidget(QWidget *parent = nullptr);
 
     /**
      * Destructs the password widget.
      */
     ~KNewPasswordWidget() override;
 
     /**
      * The current status of the password in the widget.
      */
     PasswordStatus passwordStatus() const;
 
     /**
      * Allow empty passwords?
      *
      * @return true if minimumPasswordLength() == 0
      */
     bool allowEmptyPasswords() const;
 
     /**
      * Minimum acceptable password length.
      */
     int minimumPasswordLength() const;
 
     /**
      * Maximum acceptable password length.
      */
     int maximumPasswordLength() const;
 
     /**
      * Password length that is expected to be reasonably safe.
      */
     int reasonablePasswordLength() const;
 
     /**
      * Password strength level below which a warning is given
      */
     int passwordStrengthWarningLevel() const;
 
     /**
      * The color used as warning for the verification password field's background.
      */
     QColor backgroundWarningColor() const;
 
     /**
      * Whether the password strength meter is visible.
      */
     bool isPasswordStrengthMeterVisible() const;
 
     /**
      * Whether the visibility trailing action in the line edit is visible.
      * @since 5.31
      */
     bool isRevealPasswordAvailable() const;
 
     /**
      * Returns the password entered.
      * @note Only returns meaningful data when passwordStatus
      *       is either WeakPassword or StrongPassword.
      */
     QString password() const;
 
 public Q_SLOTS:
 
     /**
      * Allow empty passwords? - Default: true
      *
      * same as setMinimumPasswordLength( allowed ? 0 : 1 )
      */
     void setAllowEmptyPasswords(bool allowed);
 
     /**
      * Minimum acceptable password length.
      *
      * Default: 0
      *
      * @param minLength The new minimum password length
      */
     void setMinimumPasswordLength(int minLength);
 
     /**
      * Maximum acceptable password length.
      *
      * @param maxLength The new maximum password length.
      */
     void setMaximumPasswordLength(int maxLength);
 
     /**
      * Password length that is expected to be reasonably safe.
      * The value is guaranteed to be in the range from 1 to maximumPasswordLength().
      *
      * Used to compute the strength level
      *
      * Default: 8 - the standard UNIX password length
      *
      * @param reasonableLength The new reasonable password length.
      */
     void setReasonablePasswordLength(int reasonableLength);
 
     /**
      * Set the password strength level below which a warning is given
      * The value is guaranteed to be in the range from 0 to 99. Empty passwords score 0;
      * non-empty passwords score up to 100, depending on their length and whether they
      * contain numbers, mixed case letters and punctuation.
      *
      * Default: 1 - warn if the password has no discernible strength whatsoever
      * @param warningLevel The level below which a warning should be given.
      */
     void setPasswordStrengthWarningLevel(int warningLevel);
 
     /**
      * When the verification password does not match, the background color
      * of the verification field is set to @p color. As soon as the passwords match,
      * the original color of the verification field is restored.
      */
     void setBackgroundWarningColor(const QColor &color);
 
     /**
      * Whether to show the password strength meter (label and progress bar).
      * Default is true.
      */
     void setPasswordStrengthMeterVisible(bool visible);
 
     /**
      * Whether to show the visibility trailing action in the line edit.
      * Default is true. This can be used to honor the lineedit_reveal_password
      * kiosk key, for example:
      * \code
      * passwordWidget.setRevealPasswordAvailable(KAuthorized::authorize(QStringLiteral("lineedit_reveal_password")));
      * \endcode
      * @since 5.31
      */
     void setRevealPasswordAvailable(bool reveal);
 
 Q_SIGNALS:
 
     /**
      * Notify about the current status of the password being typed.
      */
     void passwordStatusChanged();
 
 private:
     std::unique_ptr<class KNewPasswordWidgetPrivate> const d;
 
     Q_DISABLE_COPY(KNewPasswordWidget)
 };
 
 #endif // KNEWPASSWORDWIDGET_H