1  // Copyright (c) 2011-present The Bitcoin Core developers
 2  // Distributed under the MIT software license, see the accompanying
 3  // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 4  
 5  #ifndef BITCOIN_QT_ASKPASSPHRASEDIALOG_H
 6  #define BITCOIN_QT_ASKPASSPHRASEDIALOG_H
 7  
 8  #include <QDialog>
 9  
10  #include <support/allocators/secure.h>
11  
12  class WalletModel;
13  
14  namespace Ui {
15      class AskPassphraseDialog;
16  }
17  
18  /** Multifunctional dialog to ask for passphrases. Used for encryption, unlocking, and changing the passphrase.
19   */
20  class AskPassphraseDialog : public QDialog
21  {
22      Q_OBJECT
23  
24  public:
25      enum Mode {
26          Encrypt,    /**< Ask passphrase twice and encrypt */
27          Unlock,     /**< Ask passphrase and unlock */
28          ChangePass, /**< Ask old passphrase + new passphrase twice */
29          UnlockMigration, /**< Ask passphrase for unlocking during migration */
30      };
31  
32      explicit AskPassphraseDialog(Mode mode, QWidget *parent, SecureString* passphrase_out = nullptr);
33      ~AskPassphraseDialog();
34  
35      void accept() override;
36  
37      void setModel(WalletModel *model);
38  
39  private:
40      Ui::AskPassphraseDialog *ui;
41      Mode mode;
42      WalletModel* model{nullptr};
43      bool fCapsLock{false};
44      SecureString* m_passphrase_out;
45  
46  private Q_SLOTS:
47      void textChanged();
48      void secureClearPassFields();
49      void toggleShowPassword(bool);
50  
51  protected:
52      bool event(QEvent *event) override;
53      bool eventFilter(QObject *object, QEvent *event) override;
54  };
55  
56  #endif // BITCOIN_QT_ASKPASSPHRASEDIALOG_H