Merge bitcoin-core/gui#223: qt: Re-add and rename transaction "Edit Label" action

5440c074579f5588cdcff3d33bd1350cee0b7bff qt: Rename "Edit label" to "Edit address label" (Wladimir J. van der Laan)
22664d6287dda243ebf06df4409b50ab509603e1 Revert "qt: Remove Transactionview Edit Label Action" (Wladimir J. van der Laan)

Pull request description:

  This reverts PR #211.

  I disagree with this change, I use the functionality a lot, it was the primary way I used to organize and edit transactions labels and am sad to see this go.

  > you can edit a sending address in the send tab Address Book

  Using the address book should not be encouraged at all! A while ago it was even proposed to remove it. There's rarely need to scroll through all historical addresses used and unused. The transaction list does just fine for this.

  > While all other actions apply directly to the selected transaction, the Edit Label action applies to the selected transaction's address.

  **In practice** when bitcoin is used in the commonly advised way, generate a new address for each transaction, those are equivalent though.

  I doubt I (and **luke-jr**) will be the only users that will stumblle on this. Further discussion here: https://github.com/bitcoin-core/gui/pull/211#issuecomment-784755998

ACKs for top commit:
  hebasto:
    ACK 5440c074579f5588cdcff3d33bd1350cee0b7bff, verified that 22664d6287dda243ebf06df4409b50ab509603e1 is a clean revert of 8f9644890a167a093d95ecef1f12a20dce1bc581.

Tree-SHA512: 3a86a730279bc454d0bd25d874dbfb6b1c0492480e66c3164e7c60d8658d622d4522de11bf8564876dc3ee056b53db71ecbe8a37281bf25d41a27e6e0d72ad8f

src/qt/transactionview.cpp

@@ -155,6 +155,7 @@ transactionView(nullptr), abandonAction(nullptr), columnResizingFixer(nullptr)
     QAction *copyTxIDAction = new QAction(tr("Copy transaction ID"), this);
     QAction *copyTxHexAction = new QAction(tr("Copy raw transaction"), this);
     QAction *copyTxPlainText = new QAction(tr("Copy full transaction details"), this);
+    QAction *editLabelAction = new QAction(tr("Edit address label"), this);
     QAction *showDetailsAction = new QAction(tr("Show transaction details"), this);
     QAction *showAddressQRCodeAction = new QAction(tr("Show address QR code"), this);
 
@@ -170,6 +171,7 @@ transactionView(nullptr), abandonAction(nullptr), columnResizingFixer(nullptr)
     contextMenu->addAction(showAddressQRCodeAction);
     contextMenu->addSeparator();
     contextMenu->addAction(abandonAction);
+    contextMenu->addAction(editLabelAction);
 
     mapperThirdPartyTxUrls = new QSignalMapper(this);
 
@@ -195,6 +197,7 @@ transactionView(nullptr), abandonAction(nullptr), columnResizingFixer(nullptr)
     connect(copyTxIDAction, &QAction::triggered, this, &TransactionView::copyTxID);
     connect(copyTxHexAction, &QAction::triggered, this, &TransactionView::copyTxHex);
     connect(copyTxPlainText, &QAction::triggered, this, &TransactionView::copyTxPlainText);
+    connect(editLabelAction, &QAction::triggered, this, &TransactionView::editLabel);
     connect(showDetailsAction, &QAction::triggered, this, &TransactionView::showDetails);
     connect(showAddressQRCodeAction, &QAction::triggered, this, &TransactionView::showAddressQRCode);
     // Double-clicking on a transaction on the transaction history page shows details
@@ -476,6 +479,52 @@ void TransactionView::copyTxPlainText()
     GUIUtil::copyEntryData(transactionView, 0, TransactionTableModel::TxPlainTextRole);
 }
 
+void TransactionView::editLabel()
+{
+    if(!transactionView->selectionModel() ||!model)
+        return;
+    QModelIndexList selection = transactionView->selectionModel()->selectedRows();
+    if(!selection.isEmpty())
+    {
+        AddressTableModel *addressBook = model->getAddressTableModel();
+        if(!addressBook)
+            return;
+        QString address = selection.at(0).data(TransactionTableModel::AddressRole).toString();
+        if(address.isEmpty())
+        {
+            // If this transaction has no associated address, exit
+            return;
+        }
+        // Is address in address book? Address book can miss address when a transaction is
+        // sent from outside the UI.
+        int idx = addressBook->lookupAddress(address);
+        if(idx != -1)
+        {
+            // Edit sending / receiving address
+            QModelIndex modelIdx = addressBook->index(idx, 0, QModelIndex());
+            // Determine type of address, launch appropriate editor dialog type
+            QString type = modelIdx.data(AddressTableModel::TypeRole).toString();
+
+            EditAddressDialog dlg(
+                type == AddressTableModel::Receive
+                ? EditAddressDialog::EditReceivingAddress
+                : EditAddressDialog::EditSendingAddress, this);
+            dlg.setModel(addressBook);
+            dlg.loadRow(idx);
+            dlg.exec();
+        }
+        else
+        {
+            // Add sending address
+            EditAddressDialog dlg(EditAddressDialog::NewSendingAddress,
+                this);
+            dlg.setModel(addressBook);
+            dlg.setAddress(address);
+            dlg.exec();
+        }
+    }
+}
+
 void TransactionView::showDetails()
 {
     if(!transactionView->selectionModel())

src/qt/transactionview.h

@@ -94,6 +94,7 @@ private Q_SLOTS:
     void showDetails();
     void showAddressQRCode();
     void copyAddress();
+    void editLabel();
     void copyLabel();
     void copyAmount();
     void copyTxID();