Bitcoin-Qt: add "send coins" to context menu in addressbook

- allows to directly select an address from the addressbook, chose "send
  coins" from the context menu, which sends you to sendcoins tab and fills
  in the selected address

src/qt/addressbookpage.cpp

@@ -65,6 +65,7 @@ AddressBookPage::AddressBookPage(Mode mode, Tabs tab, QWidget *parent) :
     QAction *copyAddressAction = new QAction(ui->copyToClipboard->text(), this);
     QAction *copyLabelAction = new QAction(tr("Copy &Label"), this);
     QAction *editAction = new QAction(tr("&Edit"), this);
+    QAction *sendCoinsAction = new QAction(tr("Send &Coins"), this);
     QAction *showQRCodeAction = new QAction(ui->showQRCode->text(), this);
     QAction *signMessageAction = new QAction(ui->signMessage->text(), this);
     QAction *verifyMessageAction = new QAction(ui->verifyMessage->text(), this);
@@ -78,6 +79,8 @@ AddressBookPage::AddressBookPage(Mode mode, Tabs tab, QWidget *parent) :
     if(tab == SendingTab)
         contextMenu->addAction(deleteAction);
     contextMenu->addSeparator();
+    if(tab == SendingTab)
+        contextMenu->addAction(sendCoinsAction);
 #ifdef USE_QRCODE
     contextMenu->addAction(showQRCodeAction);
 #endif
@@ -91,6 +94,7 @@ AddressBookPage::AddressBookPage(Mode mode, Tabs tab, QWidget *parent) :
     connect(copyLabelAction, SIGNAL(triggered()), this, SLOT(onCopyLabelAction()));
     connect(editAction, SIGNAL(triggered()), this, SLOT(onEditAction()));
     connect(deleteAction, SIGNAL(triggered()), this, SLOT(on_deleteButton_clicked()));
+    connect(sendCoinsAction, SIGNAL(triggered()), this, SLOT(onSendCoins_clicked()));
     connect(showQRCodeAction, SIGNAL(triggered()), this, SLOT(on_showQRCode_clicked()));
     connect(signMessageAction, SIGNAL(triggered()), this, SLOT(on_signMessage_clicked()));
     connect(verifyMessageAction, SIGNAL(triggered()), this, SLOT(on_verifyMessage_clicked()));
@@ -206,6 +210,18 @@ void AddressBookPage::on_verifyMessage_clicked()
     }
 }
 
+void AddressBookPage::onSendCoins_clicked()
+{
+    QTableView *table = ui->tableView;
+    QModelIndexList indexes = table->selectionModel()->selectedRows(AddressTableModel::Address);
+
+    foreach (QModelIndex index, indexes)
+    {
+        QString address = index.data().toString();
+        emit sendCoins(address);
+    }
+}
+
 void AddressBookPage::on_newAddressButton_clicked()
 {
     if(!model)

src/qt/addressbookpage.h

@@ -68,6 +68,8 @@ private slots:
     void on_signMessage_clicked();
     /** Open the verify message tab in the Sign/Verify Message dialog with currently selected address */
     void on_verifyMessage_clicked();
+    /** Open send coins dialog for currently selected address (no button) */
+    void onSendCoins_clicked();
     /** Generate a QR Code from the currently selected address */
     void on_showQRCode_clicked();
     /** Copy label of currently selected address entry to clipboard (no button) */
@@ -85,6 +87,7 @@ private slots:
 signals:
     void signMessage(QString addr);
     void verifyMessage(QString addr);
+    void sendCoins(QString addr);
 };
 
 #endif // ADDRESSBOOKPAGE_H

src/qt/bitcoingui.cpp

@@ -172,9 +172,11 @@ BitcoinGUI::BitcoinGUI(QWidget *parent):
     rpcConsole = new RPCConsole(this);
     connect(openRPCConsoleAction, SIGNAL(triggered()), rpcConsole, SLOT(show()));
 
-    // Clicking on "Verify Message" in the address book sends you to the verify message tab
+    // Clicking on "Send Coins" in the address book sends you to the send coins tab
+    connect(addressBookPage, SIGNAL(sendCoins(QString)), this, SLOT(gotoSendCoinsPage(QString)));
+    // Clicking on "Verify Message" in the address book opens the verify message tab in the Sign/Verify Message dialog
     connect(addressBookPage, SIGNAL(verifyMessage(QString)), this, SLOT(gotoVerifyMessageTab(QString)));
-    // Clicking on "Sign Message" in the receive coins page sends you to the sign message tab
+    // Clicking on "Sign Message" in the receive coins page opens the sign message tab in the Sign/Verify Message dialog
     connect(receiveCoinsPage, SIGNAL(signMessage(QString)), this, SLOT(gotoSignMessageTab(QString)));
 
     // Install event filter to be able to catch status tip events (QEvent::StatusTip)
@@ -758,13 +760,16 @@ void BitcoinGUI::gotoReceiveCoinsPage()
     connect(exportAction, SIGNAL(triggered()), receiveCoinsPage, SLOT(exportClicked()));
 }
 
-void BitcoinGUI::gotoSendCoinsPage()
+void BitcoinGUI::gotoSendCoinsPage(QString addr)
 {
     sendCoinsAction->setChecked(true);
     centralWidget->setCurrentWidget(sendCoinsPage);
 
     exportAction->setEnabled(false);
     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
+
+    if(!addr.isEmpty())
+        sendCoinsPage->setAddress(addr);
 }
 
 void BitcoinGUI::gotoSignMessageTab(QString addr)

src/qt/bitcoingui.h

@@ -149,7 +149,7 @@ private slots:
     /** Switch to receive coins page */
     void gotoReceiveCoinsPage();
     /** Switch to send coins page */
-    void gotoSendCoinsPage();
+    void gotoSendCoinsPage(QString addr = "");
 
     /** Show Sign/Verify Message dialog and switch to sign message tab */
     void gotoSignMessageTab(QString addr = "");

src/qt/sendcoinsdialog.cpp

@@ -245,6 +245,26 @@ QWidget *SendCoinsDialog::setupTabChain(QWidget *prev)
     return ui->sendButton;
 }
 
+void SendCoinsDialog::setAddress(const QString &address)
+{
+    SendCoinsEntry *entry = 0;
+    // Replace the first entry if it is still unused
+    if(ui->entries->count() == 1)
+    {
+        SendCoinsEntry *first = qobject_cast<SendCoinsEntry*>(ui->entries->itemAt(0)->widget());
+        if(first->isClear())
+        {
+            entry = first;
+        }
+    }
+    if(!entry)
+    {
+        entry = addEntry();
+    }
+
+    entry->setAddress(address);
+}
+
 void SendCoinsDialog::pasteEntry(const SendCoinsRecipient &rv)
 {
     if(!fNewRecipientAllowed)

src/qt/sendcoinsdialog.h

@@ -29,6 +29,7 @@ public:
      */
     QWidget *setupTabChain(QWidget *prev);
 
+    void setAddress(const QString &address);
     void pasteEntry(const SendCoinsRecipient &rv);
     bool handleURI(const QString &uri);
 

src/qt/sendcoinsentry.cpp

@@ -153,6 +153,12 @@ void SendCoinsEntry::setValue(const SendCoinsRecipient &value)
     ui->payAmount->setValue(value.amount);
 }
 
+void SendCoinsEntry::setAddress(const QString &address)
+{
+    ui->payTo->setText(address);
+    ui->payAmount->setFocus();
+}
+
 bool SendCoinsEntry::isClear()
 {
     return ui->payTo->text().isEmpty();

src/qt/sendcoinsentry.h

@@ -26,6 +26,7 @@ public:
     bool isClear();
 
     void setValue(const SendCoinsRecipient &value);
+    void setAddress(const QString &address);
 
     /** Set up the tab chain manually, as Qt messes up the tab chain by default in some cases (issue https://bugreports.qt-project.org/browse/QTBUG-10907).
      */