qt: GUI support for -disablewallet mode

Rebased-from: 8121047b20f6486bf049e642c3e6ca61682ffdd9

src/qt/bitcoin.cpp

@@ -254,11 +254,16 @@ int main(int argc, char *argv[])
                     splash.finish(&window);
 
                 ClientModel clientModel(&optionsModel);
-                WalletModel walletModel(pwalletMain, &optionsModel);
+                WalletModel *walletModel = 0;
+                if(pwalletMain)
+                    walletModel = new WalletModel(pwalletMain, &optionsModel);
 
                 window.setClientModel(&clientModel);
-                window.addWallet("~Default", &walletModel);
-                window.setCurrentWallet("~Default");
+                if(walletModel)
+                {
+                    window.addWallet("~Default", walletModel);
+                    window.setCurrentWallet("~Default");
+                }
 
                 // If -min option passed, start window minimized.
                 if(GetBoolArg("-min"))
@@ -281,6 +286,7 @@ int main(int argc, char *argv[])
                 window.setClientModel(0);
                 window.removeAllWallets();
                 guiref = 0;
+                delete walletModel;
             }
             // Shutdown the core and its threads, but don't exit Bitcoin-Qt here
             threadGroup.interrupt_all();

src/qt/bitcoingui.cpp

@@ -146,6 +146,9 @@ BitcoinGUI::BitcoinGUI(QWidget *parent) :
 
     // Install event filter to be able to catch status tip events (QEvent::StatusTip)
     this->installEventFilter(this);
+
+    // Initially wallet actions should be disabled
+    setWalletActionsEnabled(false);
 }
 
 BitcoinGUI::~BitcoinGUI()
@@ -341,6 +344,7 @@ void BitcoinGUI::setClientModel(ClientModel *clientModel)
 
 bool BitcoinGUI::addWallet(const QString& name, WalletModel *walletModel)
 {
+    setWalletActionsEnabled(true);
     return walletFrame->addWallet(name, walletModel);
 }
 
@@ -351,9 +355,24 @@ bool BitcoinGUI::setCurrentWallet(const QString& name)
 
 void BitcoinGUI::removeAllWallets()
 {
+    setWalletActionsEnabled(false);
     walletFrame->removeAllWallets();
 }
 
+void BitcoinGUI::setWalletActionsEnabled(bool enabled)
+{
+    overviewAction->setEnabled(enabled);
+    sendCoinsAction->setEnabled(enabled);
+    receiveCoinsAction->setEnabled(enabled);
+    historyAction->setEnabled(enabled);
+    encryptWalletAction->setEnabled(enabled);
+    backupWalletAction->setEnabled(enabled);
+    changePassphraseAction->setEnabled(enabled);
+    signMessageAction->setEnabled(enabled);
+    verifyMessageAction->setEnabled(enabled);
+    addressBookAction->setEnabled(enabled);
+}
+
 void BitcoinGUI::createTrayIcon()
 {
 #ifndef Q_OS_MAC

src/qt/bitcoingui.h

@@ -126,6 +126,8 @@ private:
     void saveWindowGeometry();
     /** Restore window size and position */
     void restoreWindowGeometry();
+    /** Enable or disable all wallet-related actions */
+    void setWalletActionsEnabled(bool enabled);
 
 public slots:
     /** Set number of connections shown in the UI */

src/qt/walletframe.cpp

@@ -7,9 +7,11 @@
 #include "walletframe.h"
 #include "bitcoingui.h"
 #include "walletstack.h"
+#include "walletview.h"
 
 #include <QHBoxLayout>
 #include <QMessageBox>
+#include <QLabel>
 
 WalletFrame::WalletFrame(BitcoinGUI *_gui) :
     QFrame(_gui),
@@ -23,6 +25,10 @@ WalletFrame::WalletFrame(BitcoinGUI *_gui) :
     walletStack->setBitcoinGUI(gui);
     walletFrameLayout->setContentsMargins(0,0,0,0);
     walletFrameLayout->addWidget(walletStack);
+
+    QLabel *noWallet = new QLabel(tr("No wallet has been loaded."));
+    noWallet->setAlignment(Qt::AlignCenter);
+    walletStack->addWidget(noWallet);
 }
 
 WalletFrame::~WalletFrame()
@@ -54,6 +60,10 @@ void WalletFrame::removeAllWallets()
 
 bool WalletFrame::handleURI(const QString &uri)
 {
+    WalletView *walletView = currentWalletView();
+    if (!walletView)
+        return false;
+
     return walletStack->handleURI(uri);
 }
 
@@ -80,7 +90,9 @@ void WalletFrame::gotoHistoryPage()
 
 void WalletFrame::gotoAddressBookPage()
 {
-    walletStack->gotoAddressBookPage();
+    WalletView *walletView = currentWalletView();
+    if (walletView)
+        walletStack->gotoAddressBookPage();
 }
 
 void WalletFrame::gotoReceiveCoinsPage()
@@ -95,35 +107,55 @@ void WalletFrame::gotoSendCoinsPage(QString addr)
 
 void WalletFrame::gotoSignMessageTab(QString addr)
 {
-    walletStack->gotoSignMessageTab(addr);
+    WalletView *walletView = currentWalletView();
+    if (walletView)
+        walletView->gotoSignMessageTab(addr);
 }
 
 void WalletFrame::gotoVerifyMessageTab(QString addr)
 {
-    walletStack->gotoSignMessageTab(addr);
+    WalletView *walletView = currentWalletView();
+    if (walletView)
+        walletView->gotoVerifyMessageTab(addr);
 }
 
 void WalletFrame::encryptWallet(bool status)
 {
-    walletStack->encryptWallet(status);
+    WalletView *walletView = currentWalletView();
+    if (walletView)
+        walletView->encryptWallet(status);
 }
 
 void WalletFrame::backupWallet()
 {
-    walletStack->backupWallet();
+    WalletView *walletView = currentWalletView();
+    if (walletView)
+        walletView->backupWallet();
 }
 
 void WalletFrame::changePassphrase()
 {
-    walletStack->changePassphrase();
+    WalletView *walletView = currentWalletView();
+    if (walletView)
+        walletView->changePassphrase();
 }
 
 void WalletFrame::unlockWallet()
 {
-    walletStack->unlockWallet();
+    WalletView *walletView = currentWalletView();
+    if (walletView)
+        walletView->unlockWallet();
 }
 
 void WalletFrame::setEncryptionStatus()
 {
-    walletStack->setEncryptionStatus();
+    WalletView *walletView = currentWalletView();
+    if (walletView)
+        walletStack->setEncryptionStatus();
 }
+
+WalletView *WalletFrame::currentWalletView()
+{
+    return qobject_cast<WalletView*>(walletStack->currentWidget());
+}
+

src/qt/walletframe.h

@@ -13,6 +13,7 @@ class BitcoinGUI;
 class ClientModel;
 class WalletModel;
 class WalletStack;
+class WalletView;
 
 class WalletFrame : public QFrame
 {
@@ -38,6 +39,8 @@ private:
     ClientModel *clientModel;
     WalletStack *walletStack;
 
+    WalletView *currentWalletView();
+
 public slots:
     /** Switch to overview (home) page */
     void gotoOverviewPage();
@@ -71,4 +74,4 @@ public slots:
     void setEncryptionStatus();
 };
 
-#endif // WALLETFRAME_H
+#endif // WALLETFRAME_H