1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
|
// Copyright (c) 2011-2019 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#ifndef BITCOIN_QT_WALLETMODEL_H
#define BITCOIN_QT_WALLETMODEL_H
#if defined(HAVE_CONFIG_H)
#include <config/bitcoin-config.h>
#endif
#include <key.h>
#include <script/standard.h>
#include <qt/walletmodeltransaction.h>
#include <interfaces/wallet.h>
#include <support/allocators/secure.h>
#include <vector>
#include <QObject>
enum class OutputType;
class AddressTableModel;
class OptionsModel;
class PlatformStyle;
class RecentRequestsTableModel;
class SendCoinsRecipient;
class TransactionTableModel;
class WalletModelTransaction;
class CCoinControl;
class CKeyID;
class COutPoint;
class COutput;
class CPubKey;
class uint256;
namespace interfaces {
class Node;
} // namespace interfaces
QT_BEGIN_NAMESPACE
class QTimer;
QT_END_NAMESPACE
/** Interface to Bitcoin wallet from Qt view code. */
class WalletModel : public QObject
{
Q_OBJECT
public:
explicit WalletModel(std::unique_ptr<interfaces::Wallet> wallet, interfaces::Node& node, const PlatformStyle *platformStyle, OptionsModel *optionsModel, QObject *parent = nullptr);
~WalletModel();
enum StatusCode // Returned by sendCoins
{
OK,
InvalidAmount,
InvalidAddress,
AmountExceedsBalance,
AmountWithFeeExceedsBalance,
DuplicateAddress,
TransactionCreationFailed, // Error returned when wallet is still locked
AbsurdFee,
PaymentRequestExpired
};
enum EncryptionStatus
{
Unencrypted, // !wallet->IsCrypted()
Locked, // wallet->IsCrypted() && wallet->IsLocked()
Unlocked // wallet->IsCrypted() && !wallet->IsLocked()
};
OptionsModel *getOptionsModel();
AddressTableModel *getAddressTableModel();
TransactionTableModel *getTransactionTableModel();
RecentRequestsTableModel *getRecentRequestsTableModel();
EncryptionStatus getEncryptionStatus() const;
// Check address for validity
bool validateAddress(const QString &address);
// Return status record for SendCoins, contains error id + information
struct SendCoinsReturn
{
SendCoinsReturn(StatusCode _status = OK, QString _reasonCommitFailed = "")
: status(_status),
reasonCommitFailed(_reasonCommitFailed)
{
}
StatusCode status;
QString reasonCommitFailed;
};
// prepare transaction for getting txfee before sending coins
SendCoinsReturn prepareTransaction(WalletModelTransaction &transaction, const CCoinControl& coinControl);
// Send coins to a list of recipients
SendCoinsReturn sendCoins(WalletModelTransaction &transaction);
// Wallet encryption
bool setWalletEncrypted(bool encrypted, const SecureString &passphrase);
// Passphrase only needed when unlocking
bool setWalletLocked(bool locked, const SecureString &passPhrase=SecureString());
bool changePassphrase(const SecureString &oldPass, const SecureString &newPass);
// RAI object for unlocking wallet, returned by requestUnlock()
class UnlockContext
{
public:
UnlockContext(WalletModel *wallet, bool valid, bool relock);
~UnlockContext();
bool isValid() const { return valid; }
// Copy constructor is disabled.
UnlockContext(const UnlockContext&) = delete;
// Move operator and constructor transfer the context
UnlockContext(UnlockContext&& obj) { CopyFrom(std::move(obj)); }
UnlockContext& operator=(UnlockContext&& rhs) { CopyFrom(std::move(rhs)); return *this; }
private:
WalletModel *wallet;
bool valid;
mutable bool relock; // mutable, as it can be set to false by copying
UnlockContext& operator=(const UnlockContext&) = default;
void CopyFrom(UnlockContext&& rhs);
};
UnlockContext requestUnlock();
void loadReceiveRequests(std::vector<std::string>& vReceiveRequests);
bool saveReceiveRequest(const std::string &sAddress, const int64_t nId, const std::string &sRequest);
bool bumpFee(uint256 hash, uint256& new_hash);
static bool isWalletEnabled();
interfaces::Node& node() const { return m_node; }
interfaces::Wallet& wallet() const { return *m_wallet; }
QString getWalletName() const;
QString getDisplayName() const;
bool isMultiwallet();
AddressTableModel* getAddressTableModel() const { return addressTableModel; }
private:
std::unique_ptr<interfaces::Wallet> m_wallet;
std::unique_ptr<interfaces::Handler> m_handler_unload;
std::unique_ptr<interfaces::Handler> m_handler_status_changed;
std::unique_ptr<interfaces::Handler> m_handler_address_book_changed;
std::unique_ptr<interfaces::Handler> m_handler_transaction_changed;
std::unique_ptr<interfaces::Handler> m_handler_show_progress;
std::unique_ptr<interfaces::Handler> m_handler_watch_only_changed;
std::unique_ptr<interfaces::Handler> m_handler_can_get_addrs_changed;
interfaces::Node& m_node;
bool fHaveWatchOnly;
bool fForceCheckBalanceChanged{false};
// Wallet has an options model for wallet-specific options
// (transaction fee, for example)
OptionsModel *optionsModel;
AddressTableModel *addressTableModel;
TransactionTableModel *transactionTableModel;
RecentRequestsTableModel *recentRequestsTableModel;
// Cache some values to be able to detect changes
interfaces::WalletBalances m_cached_balances;
EncryptionStatus cachedEncryptionStatus;
int cachedNumBlocks;
void subscribeToCoreSignals();
void unsubscribeFromCoreSignals();
void checkBalanceChanged(const interfaces::WalletBalances& new_balances);
Q_SIGNALS:
// Signal that balance in wallet changed
void balanceChanged(const interfaces::WalletBalances& balances);
// Encryption status of wallet changed
void encryptionStatusChanged();
// Signal emitted when wallet needs to be unlocked
// It is valid behaviour for listeners to keep the wallet locked after this signal;
// this means that the unlocking failed or was cancelled.
void requireUnlock();
// Fired when a message should be reported to the user
void message(const QString &title, const QString &message, unsigned int style);
// Coins sent: from wallet, to recipient, in (serialized) transaction:
void coinsSent(WalletModel* wallet, SendCoinsRecipient recipient, QByteArray transaction);
// Show progress dialog e.g. for rescan
void showProgress(const QString &title, int nProgress);
// Watch-only address added
void notifyWatchonlyChanged(bool fHaveWatchonly);
// Signal that wallet is about to be removed
void unload();
// Notify that there are now keys in the keypool
void canGetAddressesChanged();
public Q_SLOTS:
/* Starts a timer to periodically update the balance */
void startPollBalance();
/* Wallet status might have changed */
void updateStatus();
/* New transaction, or transaction changed status */
void updateTransaction();
/* New, updated or removed address book entry */
void updateAddressBook(const QString &address, const QString &label, bool isMine, const QString &purpose, int status);
/* Watch-only added */
void updateWatchOnlyFlag(bool fHaveWatchonly);
/* Current, immature or unconfirmed balance might have changed - emit 'balanceChanged' if so */
void pollBalanceChanged();
};
#endif // BITCOIN_QT_WALLETMODEL_H
|
