From ab1b288fa7994db5f036e93d5f8ba73372017c40 Mon Sep 17 00:00:00 2001
From: "Wladimir J. van der Laan" <laanwj@gmail.com>
Date: Sun, 6 May 2012 19:40:58 +0200
Subject: Convert UI interface to boost::signals2.

- Signals now go directly from the core to WalletModel/ClientModel.
  - WalletModel subscribes to signals on CWallet: Prepares for multi-wallet support, by no longer assuming an implicit global wallet.
- Gets rid of noui.cpp, the few lines that were left are merged into init.cpp
- Rename wxXXX message flags to MF_XXX, to make them UI indifferent.
- ThreadSafeMessageBox no longer returns the value `4` which was never used, converted to void.
---
 src/qt/walletmodel.cpp | 49 ++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 48 insertions(+), 1 deletion(-)

(limited to 'src/qt/walletmodel.cpp')

diff --git a/src/qt/walletmodel.cpp b/src/qt/walletmodel.cpp
index 4e082a8ab..1a9700ef0 100644
--- a/src/qt/walletmodel.cpp
+++ b/src/qt/walletmodel.cpp
@@ -18,6 +18,13 @@ WalletModel::WalletModel(CWallet *wallet, OptionsModel *optionsModel, QObject *p
 {
     addressTableModel = new AddressTableModel(wallet, this);
     transactionTableModel = new TransactionTableModel(wallet, this);
+
+    subscribeToCoreSignals();
+}
+
+WalletModel::~WalletModel()
+{
+    unsubscribeFromCoreSignals();
 }
 
 qint64 WalletModel::getBalance() const
@@ -147,7 +154,7 @@ WalletModel::SendCoinsReturn WalletModel::sendCoins(const QList<SendCoinsRecipie
             }
             return TransactionCreationFailed;
         }
-        if(!ThreadSafeAskFee(nFeeRequired, tr("Sending...").toStdString()))
+        if(!uiInterface.ThreadSafeAskFee(nFeeRequired, tr("Sending...").toStdString()))
         {
             return Aborted;
         }
@@ -254,6 +261,46 @@ bool WalletModel::backupWallet(const QString &filename)
     return BackupWallet(*wallet, filename.toLocal8Bit().data());
 }
 
+// Handlers for core signals
+static void NotifyKeyStoreStatusChanged(WalletModel *walletmodel, CCryptoKeyStore *wallet)
+{
+    OutputDebugStringF("NotifyKeyStoreStatusChanged\n");
+    QMetaObject::invokeMethod(walletmodel, "updateStatus", Qt::QueuedConnection);
+}
+
+static void NotifyAddressBookChanged(WalletModel *walletmodel, CWallet *wallet, const std::string &address, const std::string &label, ChangeType status)
+{
+    OutputDebugStringF("NotifyAddressBookChanged %s %s status=%i\n", address.c_str(), label.c_str(), status);
+    QMetaObject::invokeMethod(walletmodel, "updateAddressBook", Qt::QueuedConnection,
+                              Q_ARG(QString, QString::fromStdString(address)),
+                              Q_ARG(QString, QString::fromStdString(label)),
+                              Q_ARG(int, status));
+}
+
+static void NotifyTransactionChanged(WalletModel *walletmodel, CWallet *wallet, const uint256 &hash, ChangeType status)
+{
+    OutputDebugStringF("NotifyTransactionChanged %s status=%i\n", hash.GetHex().c_str(), status);
+    QMetaObject::invokeMethod(walletmodel, "updateTransaction", Qt::QueuedConnection,
+                              Q_ARG(QString, QString::fromStdString(hash.GetHex())),
+                              Q_ARG(int, status));
+}
+
+void WalletModel::subscribeToCoreSignals()
+{
+    // Connect signals to wallet
+    wallet->NotifyStatusChanged.connect(boost::bind(&NotifyKeyStoreStatusChanged, this, _1));
+    wallet->NotifyAddressBookChanged.connect(boost::bind(NotifyAddressBookChanged, this, _1, _2, _3, _4));
+    wallet->NotifyTransactionChanged.connect(boost::bind(NotifyTransactionChanged, this, _1, _2, _3));
+}
+
+void WalletModel::unsubscribeFromCoreSignals()
+{
+    // Disconnect signals from wallet
+    wallet->NotifyStatusChanged.disconnect(boost::bind(&NotifyKeyStoreStatusChanged, this, _1));
+    wallet->NotifyAddressBookChanged.disconnect(boost::bind(NotifyAddressBookChanged, this, _1, _2, _3, _4));
+    wallet->NotifyTransactionChanged.disconnect(boost::bind(NotifyTransactionChanged, this, _1, _2, _3));
+}
+
 // WalletModel::UnlockContext implementation
 WalletModel::UnlockContext WalletModel::requestUnlock()
 {
-- 
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